Merge branches 'clk-imx', 'clk-ux500' and 'clk-debugfs' into clk-next

* clk-imx: (21 commits)
  clk: imx: Make CLK_IMX8ULP select MXC_CLK
  clk: imx: imx6ul: Fix csi clk gate register
  clk: imx: imx6ul: Move csi_sel mux to correct base register
  clk: imx: Fix the build break when clk-imx8ulp build as module
  clk: imx: Add the pcc reset controller support on imx8ulp
  clk: imx: Add clock driver for imx8ulp
  clk: imx: Update the pfdv2 for 8ulp specific support
  clk: imx: disable the pfd when set pfdv2 clock rate
  clk: imx: Add 'CLK_SET_RATE_NO_REPARENT' for composite-7ulp
  clk: imx: disable i.mx7ulp composite clock during initialization
  clk: imx: Update the compsite driver to support imx8ulp
  clk: imx: Update the pllv4 to support imx8ulp
  dt-bindings: clock: Add imx8ulp clock support
  clk: imx: Rework imx_clk_hw_pll14xx wrapper
  clk: imx: Rework all imx_clk_hw_composite wrappers
  clk: imx: Rework all clk_hw_register_divider wrappers
  clk: imx: Rework all clk_hw_register_mux wrappers
  clk: imx: Rework all clk_hw_register_gate2 wrappers
  clk: imx: Rework all clk_hw_register_gate wrappers
  clk: imx: Make mux/mux2 clk based helpers use clk_hw based ones
  ...

* clk-ux500:
  clk: ux500: Add driver for the reset portions of PRCC
  dt-bindings: clock: u8500: Rewrite in YAML and extend

* clk-debugfs:
  clk: use clk_core_get_rate_recalc() in clk_rate_get()
This commit is contained in:
Stephen Boyd 2021-11-02 11:27:02 -07:00
commit 8d741ecd46
24 changed files with 1700 additions and 430 deletions

View file

@ -0,0 +1,43 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/imx8ulp-cgc-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP i.MX8ULP Clock Generation & Control(CGC) Module Binding
maintainers:
- Jacky Bai <ping.bai@nxp.com>
description: |
On i.MX8ULP, The clock sources generation, distribution and management is
under the control of several CGCs & PCCs modules. The CGC modules generate
and distribute clocks on the device.
properties:
compatible:
enum:
- fsl,imx8ulp-cgc1
- fsl,imx8ulp-cgc2
reg:
maxItems: 1
'#clock-cells':
const: 1
required:
- compatible
- reg
- '#clock-cells'
additionalProperties: false
examples:
# Clock Generation & Control Module node:
- |
clock-controller@292c0000 {
compatible = "fsl,imx8ulp-cgc1";
reg = <0x292c0000 0x10000>;
#clock-cells = <1>;
};

View file

@ -0,0 +1,50 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/imx8ulp-pcc-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP i.MX8ULP Peripheral Clock Controller(PCC) Module Binding
maintainers:
- Jacky Bai <ping.bai@nxp.com>
description: |
On i.MX8ULP, The clock sources generation, distribution and management is
under the control of several CGCs & PCCs modules. The PCC modules control
software reset, clock selection, optional division and clock gating mode
for peripherals.
properties:
compatible:
enum:
- fsl,imx8ulp-pcc3
- fsl,imx8ulp-pcc4
- fsl,imx8ulp-pcc5
reg:
maxItems: 1
'#clock-cells':
const: 1
'#reset-cells':
const: 1
required:
- compatible
- reg
- '#clock-cells'
- '#reset-cells'
additionalProperties: false
examples:
# Peripheral Clock Control Module node:
- |
clock-controller@292d0000 {
compatible = "fsl,imx8ulp-pcc3";
reg = <0x292d0000 0x10000>;
#clock-cells = <1>;
#reset-cells = <1>;
};

View file

@ -0,0 +1,121 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/stericsson,u8500-clks.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ST-Ericsson DB8500 (U8500) clocks
maintainers:
- Ulf Hansson <ulf.hansson@linaro.org>
- Linus Walleij <linus.walleij@linaro.org>
description: While named "U8500 clocks" these clocks are inside the
DB8500 digital baseband system-on-chip and its siblings such as
DB8520. These bindings consider the clocks present in the SoC
itself, not off-chip clocks. There are four different on-chip
clocks - RTC (32 kHz), CPU clock (SMP TWD), PRCMU (power reset and
control management unit) clocks and PRCC (peripheral reset and
clock controller) clocks. For some reason PRCC 4 does not exist so
the itemization can be a bit unintuitive.
properties:
compatible:
enum:
- stericsson,u8500-clks
- stericsson,u8540-clks
- stericsson,u9540-clks
reg:
items:
- description: PRCC 1 register area
- description: PRCC 2 register area
- description: PRCC 3 register area
- description: PRCC 5 register area
- description: PRCC 6 register area
prcmu-clock:
description: A subnode with one clock cell for PRCMU (power, reset, control
management unit) clocks. The cell indicates which PRCMU clock in the
prcmu-clock node the consumer wants to use.
type: object
properties:
'#clock-cells':
const: 1
additionalProperties: false
prcc-periph-clock:
description: A subnode with two clock cells for PRCC (peripheral
reset and clock controller) peripheral clocks. The first cell indicates
which PRCC block the consumer wants to use, possible values are 1, 2, 3,
5, 6. The second cell indicates which clock inside the PRCC block it
wants, possible values are 0 thru 31.
type: object
properties:
'#clock-cells':
const: 2
additionalProperties: false
prcc-kernel-clock:
description: A subnode with two clock cells for PRCC (peripheral reset
and clock controller) kernel clocks. The first cell indicates which PRCC
block the consumer wants to use, possible values are 1, 2, 3, 5, 6. The
second cell indicates which clock inside the PRCC block it wants, possible
values are 0 thru 31.
type: object
properties:
'#clock-cells':
const: 2
additionalProperties: false
prcc-reset-controller:
description: A subnode with two reset cells for the reset portions of the
PRCC (peripheral reset and clock controller). The first cell indicates
which PRCC block the consumer wants to use, possible values are 1, 2, 3
5 and 6. The second cell indicates which reset line inside the PRCC block
it wants to control, possible values are 0 thru 31.
type: object
properties:
'#reset-cells':
const: 2
additionalProperties: false
rtc32k-clock:
description: A subnode with zero clock cells for the 32kHz RTC clock.
type: object
properties:
'#clock-cells':
const: 0
additionalProperties: false
smp-twd-clock:
description: A subnode for the ARM SMP Timer Watchdog cluster with zero
clock cells.
type: object
properties:
'#clock-cells':
const: 0
additionalProperties: false
required:
- compatible
- reg
- prcmu-clock
- prcc-periph-clock
- prcc-kernel-clock
- rtc32k-clock
- smp-twd-clock
additionalProperties: false

View file

@ -1,64 +0,0 @@
Clock bindings for ST-Ericsson Ux500 clocks
Required properties :
- compatible : shall contain only one of the following:
"stericsson,u8500-clks"
"stericsson,u8540-clks"
"stericsson,u9540-clks"
- reg : shall contain base register location and length for
CLKRST1, 2, 3, 5, and 6 in an array. Note the absence of
CLKRST4, which does not exist.
Required subnodes:
- prcmu-clock: a subnode with one clock cell for PRCMU (power,
reset, control unit) clocks. The cell indicates which PRCMU
clock in the prcmu-clock node the consumer wants to use.
- prcc-periph-clock: a subnode with two clock cells for
PRCC (programmable reset- and clock controller) peripheral clocks.
The first cell indicates which PRCC block the consumer
wants to use, possible values are 1, 2, 3, 5, 6. The second
cell indicates which clock inside the PRCC block it wants,
possible values are 0 thru 31.
- prcc-kernel-clock: a subnode with two clock cells for
PRCC (programmable reset- and clock controller) kernel clocks
The first cell indicates which PRCC block the consumer
wants to use, possible values are 1, 2, 3, 5, 6. The second
cell indicates which clock inside the PRCC block it wants,
possible values are 0 thru 31.
- rtc32k-clock: a subnode with zero clock cells for the 32kHz
RTC clock.
- smp-twd-clock: a subnode for the ARM SMP Timer Watchdog cluster
with zero clock cells.
Example:
clocks {
compatible = "stericsson,u8500-clks";
/*
* Registers for the CLKRST block on peripheral
* groups 1, 2, 3, 5, 6,
*/
reg = <0x8012f000 0x1000>, <0x8011f000 0x1000>,
<0x8000f000 0x1000>, <0xa03ff000 0x1000>,
<0xa03cf000 0x1000>;
prcmu_clk: prcmu-clock {
#clock-cells = <1>;
};
prcc_pclk: prcc-periph-clock {
#clock-cells = <2>;
};
prcc_kclk: prcc-kernel-clock {
#clock-cells = <2>;
};
rtc_clk: rtc32k-clock {
#clock-cells = <0>;
};
smp_twd_clk: smp-twd-clock {
#clock-cells = <0>;
};
};

View file

@ -29,6 +29,7 @@ menuconfig ARCH_U8500
select REGULATOR_DB8500_PRCMU
select REGULATOR_FIXED_VOLTAGE
select SOC_BUS
select RESET_CONTROLLER
help
Support for ST-Ericsson's Ux500 architecture

View file

@ -3108,7 +3108,10 @@ static int clk_rate_get(void *data, u64 *val)
{
struct clk_core *core = data;
*val = core->rate;
clk_prepare_lock();
*val = clk_core_get_rate_recalc(core);
clk_prepare_unlock();
return 0;
}

View file

@ -98,3 +98,10 @@ config CLK_IMX8QXP
select MXC_CLK_SCU
help
Build the driver for IMX8QXP SCU based clocks.
config CLK_IMX8ULP
tristate "IMX8ULP CCM Clock Driver"
depends on ARCH_MXC || COMPILE_TEST
select MXC_CLK
help
Build the driver for i.MX8ULP CCM Clock Driver

View file

@ -31,6 +31,8 @@ clk-imx-scu-$(CONFIG_CLK_IMX8QXP) += clk-scu.o clk-imx8qxp.o \
clk-imx8qxp-rsrc.o clk-imx8qm-rsrc.o
clk-imx-lpcg-scu-$(CONFIG_CLK_IMX8QXP) += clk-lpcg-scu.o clk-imx8qxp-lpcg.o
obj-$(CONFIG_CLK_IMX8ULP) += clk-imx8ulp.o
obj-$(CONFIG_CLK_IMX1) += clk-imx1.o
obj-$(CONFIG_CLK_IMX25) += clk-imx25.o
obj-$(CONFIG_CLK_IMX27) += clk-imx27.o

View file

@ -8,6 +8,7 @@
#include <linux/bits.h>
#include <linux/clk-provider.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/slab.h>
#include "../clk-fractional-divider.h"
@ -23,17 +24,61 @@
#define PCG_PCD_WIDTH 3
#define PCG_PCD_MASK 0x7
struct clk_hw *imx7ulp_clk_hw_composite(const char *name,
#define SW_RST BIT(28)
static int pcc_gate_enable(struct clk_hw *hw)
{
struct clk_gate *gate = to_clk_gate(hw);
unsigned long flags;
u32 val;
int ret;
ret = clk_gate_ops.enable(hw);
if (ret)
return ret;
spin_lock_irqsave(gate->lock, flags);
/*
* release the sw reset for peripherals associated with
* with this pcc clock.
*/
val = readl(gate->reg);
val |= SW_RST;
writel(val, gate->reg);
spin_unlock_irqrestore(gate->lock, flags);
return 0;
}
static void pcc_gate_disable(struct clk_hw *hw)
{
clk_gate_ops.disable(hw);
}
static int pcc_gate_is_enabled(struct clk_hw *hw)
{
return clk_gate_ops.is_enabled(hw);
}
static const struct clk_ops pcc_gate_ops = {
.enable = pcc_gate_enable,
.disable = pcc_gate_disable,
.is_enabled = pcc_gate_is_enabled,
};
static struct clk_hw *imx_ulp_clk_hw_composite(const char *name,
const char * const *parent_names,
int num_parents, bool mux_present,
bool rate_present, bool gate_present,
void __iomem *reg)
void __iomem *reg, bool has_swrst)
{
struct clk_hw *mux_hw = NULL, *fd_hw = NULL, *gate_hw = NULL;
struct clk_fractional_divider *fd = NULL;
struct clk_gate *gate = NULL;
struct clk_mux *mux = NULL;
struct clk_hw *hw;
u32 val;
if (mux_present) {
mux = kzalloc(sizeof(*mux), GFP_KERNEL);
@ -43,6 +88,8 @@ struct clk_hw *imx7ulp_clk_hw_composite(const char *name,
mux->reg = reg;
mux->shift = PCG_PCS_SHIFT;
mux->mask = PCG_PCS_MASK;
if (has_swrst)
mux->lock = &imx_ccm_lock;
}
if (rate_present) {
@ -60,6 +107,8 @@ struct clk_hw *imx7ulp_clk_hw_composite(const char *name,
fd->nwidth = PCG_PCD_WIDTH;
fd->nmask = PCG_PCD_MASK;
fd->flags = CLK_FRAC_DIVIDER_ZERO_BASED;
if (has_swrst)
fd->lock = &imx_ccm_lock;
}
if (gate_present) {
@ -72,13 +121,27 @@ struct clk_hw *imx7ulp_clk_hw_composite(const char *name,
gate_hw = &gate->hw;
gate->reg = reg;
gate->bit_idx = PCG_CGC_SHIFT;
if (has_swrst)
gate->lock = &imx_ccm_lock;
/*
* make sure clock is gated during clock tree initialization,
* the HW ONLY allow clock parent/rate changed with clock gated,
* during clock tree initialization, clocks could be enabled
* by bootloader, so the HW status will mismatch with clock tree
* prepare count, then clock core driver will allow parent/rate
* change since the prepare count is zero, but HW actually
* prevent the parent/rate change due to the clock is enabled.
*/
val = readl_relaxed(reg);
val &= ~(1 << PCG_CGC_SHIFT);
writel_relaxed(val, reg);
}
hw = clk_hw_register_composite(NULL, name, parent_names, num_parents,
mux_hw, &clk_mux_ops, fd_hw,
&clk_fractional_divider_ops, gate_hw,
&clk_gate_ops, CLK_SET_RATE_GATE |
CLK_SET_PARENT_GATE);
has_swrst ? &pcc_gate_ops : &clk_gate_ops, CLK_SET_RATE_GATE |
CLK_SET_PARENT_GATE | CLK_SET_RATE_NO_REPARENT);
if (IS_ERR(hw)) {
kfree(mux);
kfree(fd);
@ -87,3 +150,20 @@ struct clk_hw *imx7ulp_clk_hw_composite(const char *name,
return hw;
}
struct clk_hw *imx7ulp_clk_hw_composite(const char *name, const char * const *parent_names,
int num_parents, bool mux_present, bool rate_present,
bool gate_present, void __iomem *reg)
{
return imx_ulp_clk_hw_composite(name, parent_names, num_parents, mux_present, rate_present,
gate_present, reg, false);
}
struct clk_hw *imx8ulp_clk_hw_composite(const char *name, const char * const *parent_names,
int num_parents, bool mux_present, bool rate_present,
bool gate_present, void __iomem *reg, bool has_swrst)
{
return imx_ulp_clk_hw_composite(name, parent_names, num_parents, mux_present, rate_present,
gate_present, reg, has_swrst);
}
EXPORT_SYMBOL_GPL(imx8ulp_clk_hw_composite);

View file

@ -171,7 +171,7 @@ static const struct clk_ops imx8m_clk_composite_mux_ops = {
.determine_rate = imx8m_clk_composite_mux_determine_rate,
};
struct clk_hw *imx8m_clk_hw_composite_flags(const char *name,
struct clk_hw *__imx8m_clk_hw_composite(const char *name,
const char * const *parent_names,
int num_parents, void __iomem *reg,
u32 composite_flags,
@ -246,4 +246,4 @@ struct clk_hw *imx8m_clk_hw_composite_flags(const char *name,
kfree(mux);
return ERR_CAST(hw);
}
EXPORT_SYMBOL_GPL(imx8m_clk_hw_composite_flags);
EXPORT_SYMBOL_GPL(__imx8m_clk_hw_composite);

View file

@ -161,7 +161,6 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
hws[IMX6UL_PLL5_BYPASS] = imx_clk_hw_mux_flags("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT);
hws[IMX6UL_PLL6_BYPASS] = imx_clk_hw_mux_flags("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT);
hws[IMX6UL_PLL7_BYPASS] = imx_clk_hw_mux_flags("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT);
hws[IMX6UL_CLK_CSI_SEL] = imx_clk_hw_mux_flags("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels), CLK_SET_RATE_PARENT);
/* Do not bypass PLLs initially */
clk_set_parent(hws[IMX6UL_PLL1_BYPASS]->clk, hws[IMX6UL_CLK_PLL1]->clk);
@ -270,6 +269,7 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
hws[IMX6UL_CLK_ECSPI_SEL] = imx_clk_hw_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels));
hws[IMX6UL_CLK_LCDIF_PRE_SEL] = imx_clk_hw_mux_flags("lcdif_pre_sel", base + 0x38, 15, 3, lcdif_pre_sels, ARRAY_SIZE(lcdif_pre_sels), CLK_SET_RATE_PARENT);
hws[IMX6UL_CLK_LCDIF_SEL] = imx_clk_hw_mux("lcdif_sel", base + 0x38, 9, 3, lcdif_sels, ARRAY_SIZE(lcdif_sels));
hws[IMX6UL_CLK_CSI_SEL] = imx_clk_hw_mux("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels));
hws[IMX6UL_CLK_LDB_DI0_DIV_SEL] = imx_clk_hw_mux("ldb_di0", base + 0x20, 10, 1, ldb_di0_div_sels, ARRAY_SIZE(ldb_di0_div_sels));
hws[IMX6UL_CLK_LDB_DI1_DIV_SEL] = imx_clk_hw_mux("ldb_di1", base + 0x20, 11, 1, ldb_di1_div_sels, ARRAY_SIZE(ldb_di1_div_sels));
@ -380,7 +380,6 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
hws[IMX6ULL_CLK_ESAI_IPG] = imx_clk_hw_gate2_shared("esai_ipg", "ahb", base + 0x70, 0, &share_count_esai);
hws[IMX6ULL_CLK_ESAI_MEM] = imx_clk_hw_gate2_shared("esai_mem", "ahb", base + 0x70, 0, &share_count_esai);
}
hws[IMX6UL_CLK_CSI] = imx_clk_hw_gate2("csi", "csi_podf", base + 0x70, 2);
hws[IMX6UL_CLK_I2C1] = imx_clk_hw_gate2("i2c1", "perclk", base + 0x70, 6);
hws[IMX6UL_CLK_I2C2] = imx_clk_hw_gate2("i2c2", "perclk", base + 0x70, 8);
hws[IMX6UL_CLK_I2C3] = imx_clk_hw_gate2("i2c3", "perclk", base + 0x70, 10);
@ -391,6 +390,12 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
hws[IMX6UL_CLK_PXP] = imx_clk_hw_gate2("pxp", "axi", base + 0x70, 30);
/* CCGR3 */
/*
* Although the imx6ull reference manual lists CCGR2 as the csi clk
* gate register, tests have shown that it is actually the CCGR3
* register bit 0/1, same as for the imx6ul.
*/
hws[IMX6UL_CLK_CSI] = imx_clk_hw_gate2("csi", "csi_podf", base + 0x74, 0);
hws[IMX6UL_CLK_UART5_IPG] = imx_clk_hw_gate2("uart5_ipg", "ipg", base + 0x74, 2);
hws[IMX6UL_CLK_UART5_SERIAL] = imx_clk_hw_gate2("uart5_serial", "uart_podf", base + 0x74, 2);
if (clk_on_imx6ul()) {

View file

@ -78,20 +78,20 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
hws[IMX7ULP_CLK_SPLL_PRE_DIV] = imx_clk_hw_divider_flags("spll_pre_div", "spll_pre_sel", base + 0x608, 8, 3, CLK_SET_RATE_GATE);
/* name parent_name base */
hws[IMX7ULP_CLK_APLL] = imx_clk_hw_pllv4("apll", "apll_pre_div", base + 0x500);
hws[IMX7ULP_CLK_SPLL] = imx_clk_hw_pllv4("spll", "spll_pre_div", base + 0x600);
hws[IMX7ULP_CLK_APLL] = imx_clk_hw_pllv4(IMX_PLLV4_IMX7ULP, "apll", "apll_pre_div", base + 0x500);
hws[IMX7ULP_CLK_SPLL] = imx_clk_hw_pllv4(IMX_PLLV4_IMX7ULP, "spll", "spll_pre_div", base + 0x600);
/* APLL PFDs */
hws[IMX7ULP_CLK_APLL_PFD0] = imx_clk_hw_pfdv2("apll_pfd0", "apll", base + 0x50c, 0);
hws[IMX7ULP_CLK_APLL_PFD1] = imx_clk_hw_pfdv2("apll_pfd1", "apll", base + 0x50c, 1);
hws[IMX7ULP_CLK_APLL_PFD2] = imx_clk_hw_pfdv2("apll_pfd2", "apll", base + 0x50c, 2);
hws[IMX7ULP_CLK_APLL_PFD3] = imx_clk_hw_pfdv2("apll_pfd3", "apll", base + 0x50c, 3);
hws[IMX7ULP_CLK_APLL_PFD0] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "apll_pfd0", "apll", base + 0x50c, 0);
hws[IMX7ULP_CLK_APLL_PFD1] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "apll_pfd1", "apll", base + 0x50c, 1);
hws[IMX7ULP_CLK_APLL_PFD2] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "apll_pfd2", "apll", base + 0x50c, 2);
hws[IMX7ULP_CLK_APLL_PFD3] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "apll_pfd3", "apll", base + 0x50c, 3);
/* SPLL PFDs */
hws[IMX7ULP_CLK_SPLL_PFD0] = imx_clk_hw_pfdv2("spll_pfd0", "spll", base + 0x60C, 0);
hws[IMX7ULP_CLK_SPLL_PFD1] = imx_clk_hw_pfdv2("spll_pfd1", "spll", base + 0x60C, 1);
hws[IMX7ULP_CLK_SPLL_PFD2] = imx_clk_hw_pfdv2("spll_pfd2", "spll", base + 0x60C, 2);
hws[IMX7ULP_CLK_SPLL_PFD3] = imx_clk_hw_pfdv2("spll_pfd3", "spll", base + 0x60C, 3);
hws[IMX7ULP_CLK_SPLL_PFD0] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "spll_pfd0", "spll", base + 0x60C, 0);
hws[IMX7ULP_CLK_SPLL_PFD1] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "spll_pfd1", "spll", base + 0x60C, 1);
hws[IMX7ULP_CLK_SPLL_PFD2] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "spll_pfd2", "spll", base + 0x60C, 2);
hws[IMX7ULP_CLK_SPLL_PFD3] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "spll_pfd3", "spll", base + 0x60C, 3);
/* PLL Mux */
hws[IMX7ULP_CLK_APLL_PFD_SEL] = imx_clk_hw_mux_flags("apll_pfd_sel", base + 0x508, 14, 2, apll_pfd_sels, ARRAY_SIZE(apll_pfd_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);

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@ -0,0 +1,569 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2021 NXP
*/
#include <dt-bindings/clock/imx8ulp-clock.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/reset-controller.h>
#include <linux/slab.h>
#include "clk.h"
static const char * const pll_pre_sels[] = { "sosc", "frosc", };
static const char * const a35_sels[] = { "frosc", "spll2", "sosc", "lvds", };
static const char * const nic_sels[] = { "frosc", "spll3_pfd0", "sosc", "lvds", };
static const char * const pcc3_periph_bus_sels[] = { "dummy", "lposc", "sosc_div2",
"frosc_div2", "xbar_divbus", "spll3_pfd1_div1",
"spll3_pfd0_div2", "spll3_pfd0_div1", };
static const char * const pcc4_periph_bus_sels[] = { "dummy", "dummy", "lposc",
"sosc_div2", "frosc_div2", "xbar_divbus",
"spll3_vcodiv", "spll3_pfd0_div1", };
static const char * const pcc4_periph_plat_sels[] = { "dummy", "sosc_div1", "frosc_div1",
"spll3_pfd3_div2", "spll3_pfd3_div1",
"spll3_pfd2_div2", "spll3_pfd2_div1",
"spll3_pfd1_div2", };
static const char * const pcc5_periph_bus_sels[] = { "dummy", "dummy", "lposc",
"sosc_div2", "frosc_div2", "lpav_bus_clk",
"pll4_vcodiv", "pll4_pfd3_div1", };
static const char * const pcc5_periph_plat_sels[] = { "dummy", "pll4_pfd3_div2", "pll4_pfd2_div2",
"pll4_pfd2_div1", "pll4_pfd1_div2",
"pll4_pfd1_div1", "pll4_pfd0_div2",
"pll4_pfd0_div1", };
static const char * const hifi_sels[] = { "frosc", "pll4", "pll4_pfd0", "sosc",
"lvds", "dummy", "dummy", "dummy", };
static const char * const ddr_sels[] = { "frosc", "pll4_pfd1", "sosc", "lvds",
"pll4", "pll4", "pll4", "pll4", };
static const char * const lpav_sels[] = { "frosc", "pll4_pfd1", "sosc", "lvds", };
static const char * const sai45_sels[] = { "spll3_pfd1_div1", "aud_clk1", "aud_clk2", "sosc", };
static const char * const sai67_sels[] = { "spll1_pfd2_div", "spll3_pfd1_div1", "aud_clk0", "aud_clk1", "aud_clk2", "sosc", "dummy", "dummy", };
static const char * const aud_clk1_sels[] = { "ext_aud_mclk2", "sai4_rx_bclk", "sai4_tx_bclk", "sai5_rx_bclk", "sai5_tx_bclk", "dummy", "dummy", "dummy", };
static const char * const aud_clk2_sels[] = { "ext_aud_mclk3", "sai6_rx_bclk", "sai6_tx_bclk", "sai7_rx_bclk", "sai7_tx_bclk", "spdif_rx", "dummy", "dummy", };
static const char * const enet_ts_sels[] = { "ext_rmii_clk", "ext_ts_clk", "rosc", "ext_aud_mclk", "sosc", "dummy", "dummy", "dummy"};
static const char * const xbar_divbus[] = { "xbar_divbus" };
static const char * const nic_per_divplat[] = { "nic_per_divplat" };
static const char * const lpav_axi_div[] = { "lpav_axi_div" };
static const char * const lpav_bus_div[] = { "lpav_bus_div" };
struct pcc_reset_dev {
void __iomem *base;
struct reset_controller_dev rcdev;
const u32 *resets;
/* Set to imx_ccm_lock to protect register access shared with clock control */
spinlock_t *lock;
};
#define PCC_SW_RST BIT(28)
#define to_pcc_reset_dev(_rcdev) container_of(_rcdev, struct pcc_reset_dev, rcdev)
static const u32 pcc3_resets[] = {
0xa8, 0xac, 0xc8, 0xcc, 0xd0,
0xd4, 0xd8, 0xdc, 0xe0, 0xe4,
0xe8, 0xec, 0xf0
};
static const u32 pcc4_resets[] = {
0x4, 0x8, 0xc, 0x10, 0x14,
0x18, 0x1c, 0x20, 0x24, 0x34,
0x38, 0x3c, 0x40, 0x44, 0x48,
0x4c, 0x54
};
static const u32 pcc5_resets[] = {
0xa0, 0xa4, 0xa8, 0xac, 0xb0,
0xb4, 0xbc, 0xc0, 0xc8, 0xcc,
0xd0, 0xf0, 0xf4, 0xf8
};
static int imx8ulp_pcc_assert(struct reset_controller_dev *rcdev, unsigned long id)
{
struct pcc_reset_dev *pcc_reset = to_pcc_reset_dev(rcdev);
u32 offset = pcc_reset->resets[id];
unsigned long flags;
u32 val;
spin_lock_irqsave(pcc_reset->lock, flags);
val = readl(pcc_reset->base + offset);
val &= ~PCC_SW_RST;
writel(val, pcc_reset->base + offset);
spin_unlock_irqrestore(pcc_reset->lock, flags);
return 0;
}
static int imx8ulp_pcc_deassert(struct reset_controller_dev *rcdev, unsigned long id)
{
struct pcc_reset_dev *pcc_reset = to_pcc_reset_dev(rcdev);
u32 offset = pcc_reset->resets[id];
unsigned long flags;
u32 val;
spin_lock_irqsave(pcc_reset->lock, flags);
val = readl(pcc_reset->base + offset);
val |= PCC_SW_RST;
writel(val, pcc_reset->base + offset);
spin_unlock_irqrestore(pcc_reset->lock, flags);
return 0;
}
static const struct reset_control_ops imx8ulp_pcc_reset_ops = {
.assert = imx8ulp_pcc_assert,
.deassert = imx8ulp_pcc_deassert,
};
static int imx8ulp_pcc_reset_init(struct platform_device *pdev, void __iomem *base,
const u32 *resets, unsigned int nr_resets)
{
struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
struct pcc_reset_dev *pcc_reset;
pcc_reset = devm_kzalloc(dev, sizeof(*pcc_reset), GFP_KERNEL);
if (!pcc_reset)
return -ENOMEM;
pcc_reset->base = base;
pcc_reset->lock = &imx_ccm_lock;
pcc_reset->resets = resets;
pcc_reset->rcdev.owner = THIS_MODULE;
pcc_reset->rcdev.nr_resets = nr_resets;
pcc_reset->rcdev.ops = &imx8ulp_pcc_reset_ops;
pcc_reset->rcdev.of_node = np;
return devm_reset_controller_register(dev, &pcc_reset->rcdev);
}
static int imx8ulp_clk_cgc1_init(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct clk_hw_onecell_data *clk_data;
struct clk_hw **clks;
void __iomem *base;
clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, IMX8ULP_CLK_CGC1_END),
GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
clk_data->num = IMX8ULP_CLK_CGC1_END;
clks = clk_data->hws;
clks[IMX8ULP_CLK_DUMMY] = imx_clk_hw_fixed("dummy", 0);
/* CGC1 */
base = devm_platform_ioremap_resource(pdev, 0);
if (WARN_ON(IS_ERR(base)))
return PTR_ERR(base);
clks[IMX8ULP_CLK_SPLL2_PRE_SEL] = imx_clk_hw_mux_flags("spll2_pre_sel", base + 0x510, 0, 1, pll_pre_sels, ARRAY_SIZE(pll_pre_sels), CLK_SET_PARENT_GATE);
clks[IMX8ULP_CLK_SPLL3_PRE_SEL] = imx_clk_hw_mux_flags("spll3_pre_sel", base + 0x610, 0, 1, pll_pre_sels, ARRAY_SIZE(pll_pre_sels), CLK_SET_PARENT_GATE);
clks[IMX8ULP_CLK_SPLL2] = imx_clk_hw_pllv4(IMX_PLLV4_IMX8ULP, "spll2", "spll2_pre_sel", base + 0x500);
clks[IMX8ULP_CLK_SPLL3] = imx_clk_hw_pllv4(IMX_PLLV4_IMX8ULP, "spll3", "spll3_pre_sel", base + 0x600);
clks[IMX8ULP_CLK_SPLL3_VCODIV] = imx_clk_hw_divider("spll3_vcodiv", "spll3", base + 0x604, 0, 6);
clks[IMX8ULP_CLK_SPLL3_PFD0] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX8ULP, "spll3_pfd0", "spll3_vcodiv", base + 0x614, 0);
clks[IMX8ULP_CLK_SPLL3_PFD1] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX8ULP, "spll3_pfd1", "spll3_vcodiv", base + 0x614, 1);
clks[IMX8ULP_CLK_SPLL3_PFD2] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX8ULP, "spll3_pfd2", "spll3_vcodiv", base + 0x614, 2);
clks[IMX8ULP_CLK_SPLL3_PFD3] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX8ULP, "spll3_pfd3", "spll3_vcodiv", base + 0x614, 3);
clks[IMX8ULP_CLK_SPLL3_PFD0_DIV1_GATE] = imx_clk_hw_gate_dis("spll3_pfd0_div1_gate", "spll3_pfd0", base + 0x608, 7);
clks[IMX8ULP_CLK_SPLL3_PFD0_DIV2_GATE] = imx_clk_hw_gate_dis("spll3_pfd0_div2_gate", "spll3_pfd0", base + 0x608, 15);
clks[IMX8ULP_CLK_SPLL3_PFD1_DIV1_GATE] = imx_clk_hw_gate_dis("spll3_pfd1_div1_gate", "spll3_pfd1", base + 0x608, 23);
clks[IMX8ULP_CLK_SPLL3_PFD1_DIV2_GATE] = imx_clk_hw_gate_dis("spll3_pfd1_div2_gate", "spll3_pfd1", base + 0x608, 31);
clks[IMX8ULP_CLK_SPLL3_PFD2_DIV1_GATE] = imx_clk_hw_gate_dis("spll3_pfd2_div1_gate", "spll3_pfd2", base + 0x60c, 7);
clks[IMX8ULP_CLK_SPLL3_PFD2_DIV2_GATE] = imx_clk_hw_gate_dis("spll3_pfd2_div2_gate", "spll3_pfd2", base + 0x60c, 15);
clks[IMX8ULP_CLK_SPLL3_PFD3_DIV1_GATE] = imx_clk_hw_gate_dis("spll3_pfd3_div1_gate", "spll3_pfd3", base + 0x60c, 23);
clks[IMX8ULP_CLK_SPLL3_PFD3_DIV2_GATE] = imx_clk_hw_gate_dis("spll3_pfd3_div2_gate", "spll3_pfd3", base + 0x60c, 31);
clks[IMX8ULP_CLK_SPLL3_PFD0_DIV1] = imx_clk_hw_divider("spll3_pfd0_div1", "spll3_pfd0_div1_gate", base + 0x608, 0, 6);
clks[IMX8ULP_CLK_SPLL3_PFD0_DIV2] = imx_clk_hw_divider("spll3_pfd0_div2", "spll3_pfd0_div2_gate", base + 0x608, 8, 6);
clks[IMX8ULP_CLK_SPLL3_PFD1_DIV1] = imx_clk_hw_divider("spll3_pfd1_div1", "spll3_pfd1_div1_gate", base + 0x608, 16, 6);
clks[IMX8ULP_CLK_SPLL3_PFD1_DIV2] = imx_clk_hw_divider("spll3_pfd1_div2", "spll3_pfd1_div2_gate", base + 0x608, 24, 6);
clks[IMX8ULP_CLK_SPLL3_PFD2_DIV1] = imx_clk_hw_divider("spll3_pfd2_div1", "spll3_pfd2_div1_gate", base + 0x60c, 0, 6);
clks[IMX8ULP_CLK_SPLL3_PFD2_DIV2] = imx_clk_hw_divider("spll3_pfd2_div2", "spll3_pfd2_div2_gate", base + 0x60c, 8, 6);
clks[IMX8ULP_CLK_SPLL3_PFD3_DIV1] = imx_clk_hw_divider("spll3_pfd3_div1", "spll3_pfd3_div1_gate", base + 0x60c, 16, 6);
clks[IMX8ULP_CLK_SPLL3_PFD3_DIV2] = imx_clk_hw_divider("spll3_pfd3_div2", "spll3_pfd3_div2_gate", base + 0x60c, 24, 6);
clks[IMX8ULP_CLK_A35_SEL] = imx_clk_hw_mux2("a35_sel", base + 0x14, 28, 2, a35_sels, ARRAY_SIZE(a35_sels));
clks[IMX8ULP_CLK_A35_DIV] = imx_clk_hw_divider_flags("a35_div", "a35_sel", base + 0x14, 21, 6, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_NIC_SEL] = imx_clk_hw_mux2("nic_sel", base + 0x34, 28, 2, nic_sels, ARRAY_SIZE(nic_sels));
clks[IMX8ULP_CLK_NIC_AD_DIVPLAT] = imx_clk_hw_divider_flags("nic_ad_divplat", "nic_sel", base + 0x34, 21, 6, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_NIC_PER_DIVPLAT] = imx_clk_hw_divider_flags("nic_per_divplat", "nic_ad_divplat", base + 0x34, 14, 6, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_XBAR_AD_DIVPLAT] = imx_clk_hw_divider_flags("xbar_ad_divplat", "nic_ad_divplat", base + 0x38, 14, 6, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_XBAR_DIVBUS] = imx_clk_hw_divider_flags("xbar_divbus", "nic_ad_divplat", base + 0x38, 7, 6, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_XBAR_AD_SLOW] = imx_clk_hw_divider_flags("xbar_ad_slow", "nic_ad_divplat", base + 0x38, 0, 6, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_SOSC_DIV1_GATE] = imx_clk_hw_gate_dis("sosc_div1_gate", "sosc", base + 0x108, 7);
clks[IMX8ULP_CLK_SOSC_DIV2_GATE] = imx_clk_hw_gate_dis("sosc_div2_gate", "sosc", base + 0x108, 15);
clks[IMX8ULP_CLK_SOSC_DIV3_GATE] = imx_clk_hw_gate_dis("sosc_div3_gate", "sosc", base + 0x108, 23);
clks[IMX8ULP_CLK_SOSC_DIV1] = imx_clk_hw_divider("sosc_div1", "sosc_div1_gate", base + 0x108, 0, 6);
clks[IMX8ULP_CLK_SOSC_DIV2] = imx_clk_hw_divider("sosc_div2", "sosc_div2_gate", base + 0x108, 8, 6);
clks[IMX8ULP_CLK_SOSC_DIV3] = imx_clk_hw_divider("sosc_div3", "sosc_div3_gate", base + 0x108, 16, 6);
clks[IMX8ULP_CLK_FROSC_DIV1_GATE] = imx_clk_hw_gate_dis("frosc_div1_gate", "frosc", base + 0x208, 7);
clks[IMX8ULP_CLK_FROSC_DIV2_GATE] = imx_clk_hw_gate_dis("frosc_div2_gate", "frosc", base + 0x208, 15);
clks[IMX8ULP_CLK_FROSC_DIV3_GATE] = imx_clk_hw_gate_dis("frosc_div3_gate", "frosc", base + 0x208, 23);
clks[IMX8ULP_CLK_FROSC_DIV1] = imx_clk_hw_divider("frosc_div1", "frosc_div1_gate", base + 0x208, 0, 6);
clks[IMX8ULP_CLK_FROSC_DIV2] = imx_clk_hw_divider("frosc_div2", "frosc_div2_gate", base + 0x208, 8, 6);
clks[IMX8ULP_CLK_FROSC_DIV3] = imx_clk_hw_divider("frosc_div3", "frosc_div3_gate", base + 0x208, 16, 6);
clks[IMX8ULP_CLK_AUD_CLK1] = imx_clk_hw_mux2("aud_clk1", base + 0x900, 0, 3, aud_clk1_sels, ARRAY_SIZE(aud_clk1_sels));
clks[IMX8ULP_CLK_SAI4_SEL] = imx_clk_hw_mux2("sai4_sel", base + 0x904, 0, 2, sai45_sels, ARRAY_SIZE(sai45_sels));
clks[IMX8ULP_CLK_SAI5_SEL] = imx_clk_hw_mux2("sai5_sel", base + 0x904, 8, 2, sai45_sels, ARRAY_SIZE(sai45_sels));
clks[IMX8ULP_CLK_ENET_TS_SEL] = imx_clk_hw_mux2("enet_ts", base + 0x700, 24, 3, enet_ts_sels, ARRAY_SIZE(enet_ts_sels));
imx_check_clk_hws(clks, clk_data->num);
return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clk_data);
}
static int imx8ulp_clk_cgc2_init(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct clk_hw_onecell_data *clk_data;
struct clk_hw **clks;
void __iomem *base;
clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, IMX8ULP_CLK_CGC2_END),
GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
clk_data->num = IMX8ULP_CLK_CGC2_END;
clks = clk_data->hws;
/* CGC2 */
base = devm_platform_ioremap_resource(pdev, 0);
if (WARN_ON(IS_ERR(base)))
return PTR_ERR(base);
clks[IMX8ULP_CLK_PLL4_PRE_SEL] = imx_clk_hw_mux_flags("pll4_pre_sel", base + 0x610, 0, 1, pll_pre_sels, ARRAY_SIZE(pll_pre_sels), CLK_SET_PARENT_GATE);
clks[IMX8ULP_CLK_PLL4] = imx_clk_hw_pllv4(IMX_PLLV4_IMX8ULP, "pll4", "pll4_pre_sel", base + 0x600);
clks[IMX8ULP_CLK_PLL4_VCODIV] = imx_clk_hw_divider("pll4_vcodiv", "pll4", base + 0x604, 0, 6);
clks[IMX8ULP_CLK_HIFI_SEL] = imx_clk_hw_mux_flags("hifi_sel", base + 0x14, 28, 3, hifi_sels, ARRAY_SIZE(hifi_sels), CLK_SET_PARENT_GATE);
clks[IMX8ULP_CLK_HIFI_DIVCORE] = imx_clk_hw_divider("hifi_core_div", "hifi_sel", base + 0x14, 21, 6);
clks[IMX8ULP_CLK_HIFI_DIVPLAT] = imx_clk_hw_divider("hifi_plat_div", "hifi_core_div", base + 0x14, 14, 6);
clks[IMX8ULP_CLK_DDR_SEL] = imx_clk_hw_mux_flags("ddr_sel", base + 0x40, 28, 3, ddr_sels, ARRAY_SIZE(ddr_sels), CLK_SET_PARENT_GATE);
clks[IMX8ULP_CLK_DDR_DIV] = imx_clk_hw_divider_flags("ddr_div", "ddr_sel", base + 0x40, 21, 6, CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_LPAV_AXI_SEL] = imx_clk_hw_mux("lpav_sel", base + 0x3c, 28, 2, lpav_sels, ARRAY_SIZE(lpav_sels));
clks[IMX8ULP_CLK_LPAV_AXI_DIV] = imx_clk_hw_divider_flags("lpav_axi_div", "lpav_sel", base + 0x3c, 21, 6, CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_LPAV_AHB_DIV] = imx_clk_hw_divider_flags("lpav_ahb_div", "lpav_axi_div", base + 0x3c, 14, 6, CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_LPAV_BUS_DIV] = imx_clk_hw_divider_flags("lpav_bus_div", "lpav_axi_div", base + 0x3c, 7, 6, CLK_IS_CRITICAL);
clks[IMX8ULP_CLK_PLL4_PFD0] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX8ULP, "pll4_pfd0", "pll4_vcodiv", base + 0x614, 0);
clks[IMX8ULP_CLK_PLL4_PFD1] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX8ULP, "pll4_pfd1", "pll4_vcodiv", base + 0x614, 1);
clks[IMX8ULP_CLK_PLL4_PFD2] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX8ULP, "pll4_pfd2", "pll4_vcodiv", base + 0x614, 2);
clks[IMX8ULP_CLK_PLL4_PFD3] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX8ULP, "pll4_pfd3", "pll4_vcodiv", base + 0x614, 3);
clks[IMX8ULP_CLK_PLL4_PFD0_DIV1_GATE] = imx_clk_hw_gate_dis("pll4_pfd0_div1_gate", "pll4_pfd0", base + 0x608, 7);
clks[IMX8ULP_CLK_PLL4_PFD0_DIV2_GATE] = imx_clk_hw_gate_dis("pll4_pfd0_div2_gate", "pll4_pfd0", base + 0x608, 15);
clks[IMX8ULP_CLK_PLL4_PFD1_DIV1_GATE] = imx_clk_hw_gate_dis("pll4_pfd1_div1_gate", "pll4_pfd1", base + 0x608, 23);
clks[IMX8ULP_CLK_PLL4_PFD1_DIV2_GATE] = imx_clk_hw_gate_dis("pll4_pfd1_div2_gate", "pll4_pfd1", base + 0x608, 31);
clks[IMX8ULP_CLK_PLL4_PFD2_DIV1_GATE] = imx_clk_hw_gate_dis("pll4_pfd2_div1_gate", "pll4_pfd2", base + 0x60c, 7);
clks[IMX8ULP_CLK_PLL4_PFD2_DIV2_GATE] = imx_clk_hw_gate_dis("pll4_pfd2_div2_gate", "pll4_pfd2", base + 0x60c, 15);
clks[IMX8ULP_CLK_PLL4_PFD3_DIV1_GATE] = imx_clk_hw_gate_dis("pll4_pfd3_div1_gate", "pll4_pfd3", base + 0x60c, 23);
clks[IMX8ULP_CLK_PLL4_PFD3_DIV2_GATE] = imx_clk_hw_gate_dis("pll4_pfd3_div2_gate", "pll4_pfd3", base + 0x60c, 31);
clks[IMX8ULP_CLK_PLL4_PFD0_DIV1] = imx_clk_hw_divider("pll4_pfd0_div1", "pll4_pfd0_div1_gate", base + 0x608, 0, 6);
clks[IMX8ULP_CLK_PLL4_PFD0_DIV2] = imx_clk_hw_divider("pll4_pfd0_div2", "pll4_pfd0_div2_gate", base + 0x608, 8, 6);
clks[IMX8ULP_CLK_PLL4_PFD1_DIV1] = imx_clk_hw_divider("pll4_pfd1_div1", "pll4_pfd1_div1_gate", base + 0x608, 16, 6);
clks[IMX8ULP_CLK_PLL4_PFD1_DIV2] = imx_clk_hw_divider("pll4_pfd1_div2", "pll4_pfd1_div2_gate", base + 0x608, 24, 6);
clks[IMX8ULP_CLK_PLL4_PFD2_DIV1] = imx_clk_hw_divider("pll4_pfd2_div1", "pll4_pfd2_div1_gate", base + 0x60c, 0, 6);
clks[IMX8ULP_CLK_PLL4_PFD2_DIV2] = imx_clk_hw_divider("pll4_pfd2_div2", "pll4_pfd2_div2_gate", base + 0x60c, 8, 6);
clks[IMX8ULP_CLK_PLL4_PFD3_DIV1] = imx_clk_hw_divider("pll4_pfd3_div1", "pll4_pfd3_div1_gate", base + 0x60c, 16, 6);
clks[IMX8ULP_CLK_PLL4_PFD3_DIV2] = imx_clk_hw_divider("pll4_pfd3_div2", "pll4_pfd3_div2_gate", base + 0x60c, 24, 6);
clks[IMX8ULP_CLK_CGC2_SOSC_DIV1_GATE] = imx_clk_hw_gate_dis("cgc2_sosc_div1_gate", "sosc", base + 0x108, 7);
clks[IMX8ULP_CLK_CGC2_SOSC_DIV2_GATE] = imx_clk_hw_gate_dis("cgc2_sosc_div2_gate", "sosc", base + 0x108, 15);
clks[IMX8ULP_CLK_CGC2_SOSC_DIV3_GATE] = imx_clk_hw_gate_dis("cgc2_sosc_div3_gate", "sosc", base + 0x108, 23);
clks[IMX8ULP_CLK_CGC2_SOSC_DIV1] = imx_clk_hw_divider("cgc2_sosc_div1", "cgc2_sosc_div1_gate", base + 0x108, 0, 6);
clks[IMX8ULP_CLK_CGC2_SOSC_DIV2] = imx_clk_hw_divider("cgc2_sosc_div2", "cgc2_sosc_div2_gate", base + 0x108, 8, 6);
clks[IMX8ULP_CLK_CGC2_SOSC_DIV3] = imx_clk_hw_divider("cgc2_sosc_div3", "cgc2_sosc_div3_gate", base + 0x108, 16, 6);
clks[IMX8ULP_CLK_CGC2_FROSC_DIV1_GATE] = imx_clk_hw_gate_dis("cgc2_frosc_div1_gate", "frosc", base + 0x208, 7);
clks[IMX8ULP_CLK_CGC2_FROSC_DIV2_GATE] = imx_clk_hw_gate_dis("cgc2_frosc_div2_gate", "frosc", base + 0x208, 15);
clks[IMX8ULP_CLK_CGC2_FROSC_DIV3_GATE] = imx_clk_hw_gate_dis("cgc2_frosc_div3_gate", "frosc", base + 0x208, 23);
clks[IMX8ULP_CLK_CGC2_FROSC_DIV1] = imx_clk_hw_divider("cgc2_frosc_div1", "cgc2_frosc_div1_gate", base + 0x208, 0, 6);
clks[IMX8ULP_CLK_CGC2_FROSC_DIV2] = imx_clk_hw_divider("cgc2_frosc_div2", "cgc2_frosc_div2_gate", base + 0x208, 8, 6);
clks[IMX8ULP_CLK_CGC2_FROSC_DIV3] = imx_clk_hw_divider("cgc2_frosc_div3", "cgc2_frosc_div3_gate", base + 0x208, 16, 6);
clks[IMX8ULP_CLK_AUD_CLK2] = imx_clk_hw_mux2("aud_clk2", base + 0x900, 0, 3, aud_clk2_sels, ARRAY_SIZE(aud_clk2_sels));
clks[IMX8ULP_CLK_SAI6_SEL] = imx_clk_hw_mux2("sai6_sel", base + 0x904, 0, 3, sai67_sels, ARRAY_SIZE(sai67_sels));
clks[IMX8ULP_CLK_SAI7_SEL] = imx_clk_hw_mux2("sai7_sel", base + 0x904, 8, 3, sai67_sels, ARRAY_SIZE(sai67_sels));
clks[IMX8ULP_CLK_SPDIF_SEL] = imx_clk_hw_mux2("spdif_sel", base + 0x910, 0, 3, sai67_sels, ARRAY_SIZE(sai67_sels));
clks[IMX8ULP_CLK_DSI_PHY_REF] = imx_clk_hw_fixed("dsi_phy_ref", 24000000);
imx_check_clk_hws(clks, clk_data->num);
return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clk_data);
}
static int imx8ulp_clk_pcc3_init(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct clk_hw_onecell_data *clk_data;
struct clk_hw **clks;
void __iomem *base;
int ret;
clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, IMX8ULP_CLK_PCC3_END),
GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
clk_data->num = IMX8ULP_CLK_PCC3_END;
clks = clk_data->hws;
/* PCC3 */
base = devm_platform_ioremap_resource(pdev, 0);
if (WARN_ON(IS_ERR(base)))
return PTR_ERR(base);
clks[IMX8ULP_CLK_WDOG3] = imx8ulp_clk_hw_composite("wdog3", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xa8, 1);
clks[IMX8ULP_CLK_WDOG4] = imx8ulp_clk_hw_composite("wdog4", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xac, 1);
clks[IMX8ULP_CLK_LPIT1] = imx8ulp_clk_hw_composite("lpit1", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xc8, 1);
clks[IMX8ULP_CLK_TPM4] = imx8ulp_clk_hw_composite("tpm4", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xcc, 1);
clks[IMX8ULP_CLK_TPM5] = imx8ulp_clk_hw_composite("tpm5", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xd0, 1);
clks[IMX8ULP_CLK_FLEXIO1] = imx8ulp_clk_hw_composite("flexio1", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xd4, 1);
clks[IMX8ULP_CLK_I3C2] = imx8ulp_clk_hw_composite("i3c2", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xd8, 1);
clks[IMX8ULP_CLK_LPI2C4] = imx8ulp_clk_hw_composite("lpi2c4", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xdc, 1);
clks[IMX8ULP_CLK_LPI2C5] = imx8ulp_clk_hw_composite("lpi2c5", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xe0, 1);
clks[IMX8ULP_CLK_LPUART4] = imx8ulp_clk_hw_composite("lpuart4", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xe4, 1);
clks[IMX8ULP_CLK_LPUART5] = imx8ulp_clk_hw_composite("lpuart5", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xe8, 1);
clks[IMX8ULP_CLK_LPSPI4] = imx8ulp_clk_hw_composite("lpspi4", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xec, 1);
clks[IMX8ULP_CLK_LPSPI5] = imx8ulp_clk_hw_composite("lpspi5", pcc3_periph_bus_sels, ARRAY_SIZE(pcc3_periph_bus_sels), true, true, true, base + 0xf0, 1);
clks[IMX8ULP_CLK_DMA1_MP] = imx_clk_hw_gate("pcc_dma1_mp", "xbar_ad_divplat", base + 0x4, 30);
clks[IMX8ULP_CLK_DMA1_CH0] = imx_clk_hw_gate("pcc_dma1_ch0", "xbar_ad_divplat", base + 0x8, 30);
clks[IMX8ULP_CLK_DMA1_CH1] = imx_clk_hw_gate("pcc_dma1_ch1", "xbar_ad_divplat", base + 0xc, 30);
clks[IMX8ULP_CLK_DMA1_CH2] = imx_clk_hw_gate("pcc_dma1_ch2", "xbar_ad_divplat", base + 0x10, 30);
clks[IMX8ULP_CLK_DMA1_CH3] = imx_clk_hw_gate("pcc_dma1_ch3", "xbar_ad_divplat", base + 0x14, 30);
clks[IMX8ULP_CLK_DMA1_CH4] = imx_clk_hw_gate("pcc_dma1_ch4", "xbar_ad_divplat", base + 0x18, 30);
clks[IMX8ULP_CLK_DMA1_CH5] = imx_clk_hw_gate("pcc_dma1_ch5", "xbar_ad_divplat", base + 0x1c, 30);
clks[IMX8ULP_CLK_DMA1_CH6] = imx_clk_hw_gate("pcc_dma1_ch6", "xbar_ad_divplat", base + 0x20, 30);
clks[IMX8ULP_CLK_DMA1_CH7] = imx_clk_hw_gate("pcc_dma1_ch7", "xbar_ad_divplat", base + 0x24, 30);
clks[IMX8ULP_CLK_DMA1_CH8] = imx_clk_hw_gate("pcc_dma1_ch8", "xbar_ad_divplat", base + 0x28, 30);
clks[IMX8ULP_CLK_DMA1_CH9] = imx_clk_hw_gate("pcc_dma1_ch9", "xbar_ad_divplat", base + 0x2c, 30);
clks[IMX8ULP_CLK_DMA1_CH10] = imx_clk_hw_gate("pcc_dma1_ch10", "xbar_ad_divplat", base + 0x30, 30);
clks[IMX8ULP_CLK_DMA1_CH11] = imx_clk_hw_gate("pcc_dma1_ch11", "xbar_ad_divplat", base + 0x34, 30);
clks[IMX8ULP_CLK_DMA1_CH12] = imx_clk_hw_gate("pcc_dma1_ch12", "xbar_ad_divplat", base + 0x38, 30);
clks[IMX8ULP_CLK_DMA1_CH13] = imx_clk_hw_gate("pcc_dma1_ch13", "xbar_ad_divplat", base + 0x3c, 30);
clks[IMX8ULP_CLK_DMA1_CH14] = imx_clk_hw_gate("pcc_dma1_ch14", "xbar_ad_divplat", base + 0x40, 30);
clks[IMX8ULP_CLK_DMA1_CH15] = imx_clk_hw_gate("pcc_dma1_ch15", "xbar_ad_divplat", base + 0x44, 30);
clks[IMX8ULP_CLK_DMA1_CH16] = imx_clk_hw_gate("pcc_dma1_ch16", "xbar_ad_divplat", base + 0x48, 30);
clks[IMX8ULP_CLK_DMA1_CH17] = imx_clk_hw_gate("pcc_dma1_ch17", "xbar_ad_divplat", base + 0x4c, 30);
clks[IMX8ULP_CLK_DMA1_CH18] = imx_clk_hw_gate("pcc_dma1_ch18", "xbar_ad_divplat", base + 0x50, 30);
clks[IMX8ULP_CLK_DMA1_CH19] = imx_clk_hw_gate("pcc_dma1_ch19", "xbar_ad_divplat", base + 0x54, 30);
clks[IMX8ULP_CLK_DMA1_CH20] = imx_clk_hw_gate("pcc_dma1_ch20", "xbar_ad_divplat", base + 0x58, 30);
clks[IMX8ULP_CLK_DMA1_CH21] = imx_clk_hw_gate("pcc_dma1_ch21", "xbar_ad_divplat", base + 0x5c, 30);
clks[IMX8ULP_CLK_DMA1_CH22] = imx_clk_hw_gate("pcc_dma1_ch22", "xbar_ad_divplat", base + 0x60, 30);
clks[IMX8ULP_CLK_DMA1_CH23] = imx_clk_hw_gate("pcc_dma1_ch23", "xbar_ad_divplat", base + 0x64, 30);
clks[IMX8ULP_CLK_DMA1_CH24] = imx_clk_hw_gate("pcc_dma1_ch24", "xbar_ad_divplat", base + 0x68, 30);
clks[IMX8ULP_CLK_DMA1_CH25] = imx_clk_hw_gate("pcc_dma1_ch25", "xbar_ad_divplat", base + 0x6c, 30);
clks[IMX8ULP_CLK_DMA1_CH26] = imx_clk_hw_gate("pcc_dma1_ch26", "xbar_ad_divplat", base + 0x70, 30);
clks[IMX8ULP_CLK_DMA1_CH27] = imx_clk_hw_gate("pcc_dma1_ch27", "xbar_ad_divplat", base + 0x74, 30);
clks[IMX8ULP_CLK_DMA1_CH28] = imx_clk_hw_gate("pcc_dma1_ch28", "xbar_ad_divplat", base + 0x78, 30);
clks[IMX8ULP_CLK_DMA1_CH29] = imx_clk_hw_gate("pcc_dma1_ch29", "xbar_ad_divplat", base + 0x7c, 30);
clks[IMX8ULP_CLK_DMA1_CH30] = imx_clk_hw_gate("pcc_dma1_ch30", "xbar_ad_divplat", base + 0x80, 30);
clks[IMX8ULP_CLK_DMA1_CH31] = imx_clk_hw_gate("pcc_dma1_ch31", "xbar_ad_divplat", base + 0x84, 30);
clks[IMX8ULP_CLK_MU0_B] = imx_clk_hw_gate("mu0_b", "xbar_ad_divplat", base + 0x88, 30);
clks[IMX8ULP_CLK_MU3_A] = imx_clk_hw_gate("mu3_a", "xbar_ad_divplat", base + 0x8c, 30);
imx_check_clk_hws(clks, clk_data->num);
ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clk_data);
if (ret)
return ret;
imx_register_uart_clocks(1);
/* register the pcc3 reset controller */
return imx8ulp_pcc_reset_init(pdev, base, pcc3_resets, ARRAY_SIZE(pcc3_resets));
}
static int imx8ulp_clk_pcc4_init(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct clk_hw_onecell_data *clk_data;
struct clk_hw **clks;
void __iomem *base;
int ret;
clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, IMX8ULP_CLK_PCC4_END),
GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
clk_data->num = IMX8ULP_CLK_PCC4_END;
clks = clk_data->hws;
/* PCC4 */
base = devm_platform_ioremap_resource(pdev, 0);
if (WARN_ON(IS_ERR(base)))
return PTR_ERR(base);
clks[IMX8ULP_CLK_FLEXSPI2] = imx8ulp_clk_hw_composite("flexspi2", pcc4_periph_plat_sels, ARRAY_SIZE(pcc4_periph_plat_sels), true, true, true, base + 0x4, 1);
clks[IMX8ULP_CLK_TPM6] = imx8ulp_clk_hw_composite("tpm6", pcc4_periph_bus_sels, ARRAY_SIZE(pcc4_periph_bus_sels), true, true, true, base + 0x8, 1);
clks[IMX8ULP_CLK_TPM7] = imx8ulp_clk_hw_composite("tpm7", pcc4_periph_bus_sels, ARRAY_SIZE(pcc4_periph_bus_sels), true, true, true, base + 0xc, 1);
clks[IMX8ULP_CLK_LPI2C6] = imx8ulp_clk_hw_composite("lpi2c6", pcc4_periph_bus_sels, ARRAY_SIZE(pcc4_periph_bus_sels), true, true, true, base + 0x10, 1);
clks[IMX8ULP_CLK_LPI2C7] = imx8ulp_clk_hw_composite("lpi2c7", pcc4_periph_bus_sels, ARRAY_SIZE(pcc4_periph_bus_sels), true, true, true, base + 0x14, 1);
clks[IMX8ULP_CLK_LPUART6] = imx8ulp_clk_hw_composite("lpuart6", pcc4_periph_bus_sels, ARRAY_SIZE(pcc4_periph_bus_sels), true, true, true, base + 0x18, 1);
clks[IMX8ULP_CLK_LPUART7] = imx8ulp_clk_hw_composite("lpuart7", pcc4_periph_bus_sels, ARRAY_SIZE(pcc4_periph_bus_sels), true, true, true, base + 0x1c, 1);
clks[IMX8ULP_CLK_SAI4] = imx8ulp_clk_hw_composite("sai4", xbar_divbus, 1, false, false, true, base + 0x20, 1); /* sai ipg, NOT from sai sel */
clks[IMX8ULP_CLK_SAI5] = imx8ulp_clk_hw_composite("sai5", xbar_divbus, 1, false, false, true, base + 0x24, 1); /* sai ipg */
clks[IMX8ULP_CLK_PCTLE] = imx_clk_hw_gate("pctle", "xbar_divbus", base + 0x28, 30);
clks[IMX8ULP_CLK_PCTLF] = imx_clk_hw_gate("pctlf", "xbar_divbus", base + 0x2c, 30);
clks[IMX8ULP_CLK_USDHC0] = imx8ulp_clk_hw_composite("usdhc0", pcc4_periph_plat_sels, ARRAY_SIZE(pcc4_periph_plat_sels), true, false, true, base + 0x34, 1);
clks[IMX8ULP_CLK_USDHC1] = imx8ulp_clk_hw_composite("usdhc1", pcc4_periph_plat_sels, ARRAY_SIZE(pcc4_periph_plat_sels), true, false, true, base + 0x38, 1);
clks[IMX8ULP_CLK_USDHC2] = imx8ulp_clk_hw_composite("usdhc2", pcc4_periph_plat_sels, ARRAY_SIZE(pcc4_periph_plat_sels), true, false, true, base + 0x3c, 1);
clks[IMX8ULP_CLK_USB0] = imx8ulp_clk_hw_composite("usb0", nic_per_divplat, 1, false, false, true, base + 0x40, 1);
clks[IMX8ULP_CLK_USB0_PHY] = imx8ulp_clk_hw_composite("usb0_phy", xbar_divbus, 1, false, false, true, base + 0x44, 1);
clks[IMX8ULP_CLK_USB1] = imx8ulp_clk_hw_composite("usb1", nic_per_divplat, 1, false, false, true, base + 0x48, 1);
clks[IMX8ULP_CLK_USB1_PHY] = imx8ulp_clk_hw_composite("usb1_phy", xbar_divbus, 1, false, false, true, base + 0x4c, 1);
clks[IMX8ULP_CLK_USB_XBAR] = imx_clk_hw_gate("usb_xbar", "xbar_divbus", base + 0x50, 30);
clks[IMX8ULP_CLK_ENET] = imx8ulp_clk_hw_composite("enet", nic_per_divplat, 1, false, false, true, base + 0x54, 1);
clks[IMX8ULP_CLK_RGPIOE] = imx_clk_hw_gate("rgpioe", "nic_per_divplat", base + 0x78, 30);
clks[IMX8ULP_CLK_RGPIOF] = imx_clk_hw_gate("rgpiof", "nic_per_divplat", base + 0x7c, 30);
imx_check_clk_hws(clks, clk_data->num);
ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clk_data);
if (ret)
return ret;
/* register the pcc4 reset controller */
return imx8ulp_pcc_reset_init(pdev, base, pcc4_resets, ARRAY_SIZE(pcc4_resets));
}
static int imx8ulp_clk_pcc5_init(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct clk_hw_onecell_data *clk_data;
struct clk_hw **clks;
void __iomem *base;
int ret;
clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, IMX8ULP_CLK_PCC5_END),
GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
clk_data->num = IMX8ULP_CLK_PCC5_END;
clks = clk_data->hws;
/* PCC5 */
base = devm_platform_ioremap_resource(pdev, 0);
if (WARN_ON(IS_ERR(base)))
return PTR_ERR(base);
clks[IMX8ULP_CLK_DMA2_MP] = imx_clk_hw_gate("pcc_dma2_mp", "lpav_axi_div", base + 0x0, 30);
clks[IMX8ULP_CLK_DMA2_CH0] = imx_clk_hw_gate("pcc_dma2_ch0", "lpav_axi_div", base + 0x4, 30);
clks[IMX8ULP_CLK_DMA2_CH1] = imx_clk_hw_gate("pcc_dma2_ch1", "lpav_axi_div", base + 0x8, 30);
clks[IMX8ULP_CLK_DMA2_CH2] = imx_clk_hw_gate("pcc_dma2_ch2", "lpav_axi_div", base + 0xc, 30);
clks[IMX8ULP_CLK_DMA2_CH3] = imx_clk_hw_gate("pcc_dma2_ch3", "lpav_axi_div", base + 0x10, 30);
clks[IMX8ULP_CLK_DMA2_CH4] = imx_clk_hw_gate("pcc_dma2_ch4", "lpav_axi_div", base + 0x14, 30);
clks[IMX8ULP_CLK_DMA2_CH5] = imx_clk_hw_gate("pcc_dma2_ch5", "lpav_axi_div", base + 0x18, 30);
clks[IMX8ULP_CLK_DMA2_CH6] = imx_clk_hw_gate("pcc_dma2_ch6", "lpav_axi_div", base + 0x1c, 30);
clks[IMX8ULP_CLK_DMA2_CH7] = imx_clk_hw_gate("pcc_dma2_ch7", "lpav_axi_div", base + 0x20, 30);
clks[IMX8ULP_CLK_DMA2_CH8] = imx_clk_hw_gate("pcc_dma2_ch8", "lpav_axi_div", base + 0x24, 30);
clks[IMX8ULP_CLK_DMA2_CH9] = imx_clk_hw_gate("pcc_dma2_ch9", "lpav_axi_div", base + 0x28, 30);
clks[IMX8ULP_CLK_DMA2_CH10] = imx_clk_hw_gate("pcc_dma2_ch10", "lpav_axi_div", base + 0x2c, 30);
clks[IMX8ULP_CLK_DMA2_CH11] = imx_clk_hw_gate("pcc_dma2_ch11", "lpav_axi_div", base + 0x30, 30);
clks[IMX8ULP_CLK_DMA2_CH12] = imx_clk_hw_gate("pcc_dma2_ch12", "lpav_axi_div", base + 0x34, 30);
clks[IMX8ULP_CLK_DMA2_CH13] = imx_clk_hw_gate("pcc_dma2_ch13", "lpav_axi_div", base + 0x38, 30);
clks[IMX8ULP_CLK_DMA2_CH14] = imx_clk_hw_gate("pcc_dma2_ch14", "lpav_axi_div", base + 0x3c, 30);
clks[IMX8ULP_CLK_DMA2_CH15] = imx_clk_hw_gate("pcc_dma2_ch15", "lpav_axi_div", base + 0x40, 30);
clks[IMX8ULP_CLK_DMA2_CH16] = imx_clk_hw_gate("pcc_dma2_ch16", "lpav_axi_div", base + 0x44, 30);
clks[IMX8ULP_CLK_DMA2_CH17] = imx_clk_hw_gate("pcc_dma2_ch17", "lpav_axi_div", base + 0x48, 30);
clks[IMX8ULP_CLK_DMA2_CH18] = imx_clk_hw_gate("pcc_dma2_ch18", "lpav_axi_div", base + 0x4c, 30);
clks[IMX8ULP_CLK_DMA2_CH19] = imx_clk_hw_gate("pcc_dma2_ch19", "lpav_axi_div", base + 0x50, 30);
clks[IMX8ULP_CLK_DMA2_CH20] = imx_clk_hw_gate("pcc_dma2_ch20", "lpav_axi_div", base + 0x54, 30);
clks[IMX8ULP_CLK_DMA2_CH21] = imx_clk_hw_gate("pcc_dma2_ch21", "lpav_axi_div", base + 0x58, 30);
clks[IMX8ULP_CLK_DMA2_CH22] = imx_clk_hw_gate("pcc_dma2_ch22", "lpav_axi_div", base + 0x5c, 30);
clks[IMX8ULP_CLK_DMA2_CH23] = imx_clk_hw_gate("pcc_dma2_ch23", "lpav_axi_div", base + 0x60, 30);
clks[IMX8ULP_CLK_DMA2_CH24] = imx_clk_hw_gate("pcc_dma2_ch24", "lpav_axi_div", base + 0x64, 30);
clks[IMX8ULP_CLK_DMA2_CH25] = imx_clk_hw_gate("pcc_dma2_ch25", "lpav_axi_div", base + 0x68, 30);
clks[IMX8ULP_CLK_DMA2_CH26] = imx_clk_hw_gate("pcc_dma2_ch26", "lpav_axi_div", base + 0x6c, 30);
clks[IMX8ULP_CLK_DMA2_CH27] = imx_clk_hw_gate("pcc_dma2_ch27", "lpav_axi_div", base + 0x70, 30);
clks[IMX8ULP_CLK_DMA2_CH28] = imx_clk_hw_gate("pcc_dma2_ch28", "lpav_axi_div", base + 0x74, 30);
clks[IMX8ULP_CLK_DMA2_CH29] = imx_clk_hw_gate("pcc_dma2_ch29", "lpav_axi_div", base + 0x78, 30);
clks[IMX8ULP_CLK_DMA2_CH30] = imx_clk_hw_gate("pcc_dma2_ch30", "lpav_axi_div", base + 0x7c, 30);
clks[IMX8ULP_CLK_DMA2_CH31] = imx_clk_hw_gate("pcc_dma2_ch31", "lpav_axi_div", base + 0x80, 30);
clks[IMX8ULP_CLK_AVD_SIM] = imx_clk_hw_gate("avd_sim", "lpav_bus_div", base + 0x94, 30);
clks[IMX8ULP_CLK_TPM8] = imx8ulp_clk_hw_composite("tpm8", pcc5_periph_bus_sels, ARRAY_SIZE(pcc5_periph_bus_sels), true, true, true, base + 0xa0, 1);
clks[IMX8ULP_CLK_MU2_B] = imx_clk_hw_gate("mu2_b", "lpav_bus_div", base + 0x84, 30);
clks[IMX8ULP_CLK_MU3_B] = imx_clk_hw_gate("mu3_b", "lpav_bus_div", base + 0x88, 30);
clks[IMX8ULP_CLK_SAI6] = imx8ulp_clk_hw_composite("sai6", lpav_bus_div, 1, false, false, true, base + 0xa4, 1);
clks[IMX8ULP_CLK_SAI7] = imx8ulp_clk_hw_composite("sai7", lpav_bus_div, 1, false, false, true, base + 0xa8, 1);
clks[IMX8ULP_CLK_SPDIF] = imx8ulp_clk_hw_composite("spdif", lpav_bus_div, 1, false, false, true, base + 0xac, 1);
clks[IMX8ULP_CLK_ISI] = imx8ulp_clk_hw_composite("isi", lpav_axi_div, 1, false, false, true, base + 0xb0, 1);
clks[IMX8ULP_CLK_CSI_REGS] = imx8ulp_clk_hw_composite("csi_regs", lpav_bus_div, 1, false, false, true, base + 0xb4, 1);
clks[IMX8ULP_CLK_CSI] = imx8ulp_clk_hw_composite("csi", pcc5_periph_plat_sels, ARRAY_SIZE(pcc5_periph_plat_sels), true, true, true, base + 0xbc, 1);
clks[IMX8ULP_CLK_DSI] = imx8ulp_clk_hw_composite("dsi", pcc5_periph_plat_sels, ARRAY_SIZE(pcc5_periph_plat_sels), true, true, true, base + 0xc0, 1);
clks[IMX8ULP_CLK_WDOG5] = imx8ulp_clk_hw_composite("wdog5", pcc5_periph_bus_sels, ARRAY_SIZE(pcc5_periph_bus_sels), true, true, true, base + 0xc8, 1);
clks[IMX8ULP_CLK_EPDC] = imx8ulp_clk_hw_composite("epdc", pcc5_periph_plat_sels, ARRAY_SIZE(pcc5_periph_plat_sels), true, true, true, base + 0xcc, 1);
clks[IMX8ULP_CLK_PXP] = imx8ulp_clk_hw_composite("pxp", lpav_axi_div, 1, false, false, true, base + 0xd0, 1);
clks[IMX8ULP_CLK_GPU2D] = imx8ulp_clk_hw_composite("gpu2d", pcc5_periph_plat_sels, ARRAY_SIZE(pcc5_periph_plat_sels), true, true, true, base + 0xf0, 1);
clks[IMX8ULP_CLK_GPU3D] = imx8ulp_clk_hw_composite("gpu3d", pcc5_periph_plat_sels, ARRAY_SIZE(pcc5_periph_plat_sels), true, true, true, base + 0xf4, 1);
clks[IMX8ULP_CLK_DC_NANO] = imx8ulp_clk_hw_composite("dc_nano", pcc5_periph_plat_sels, ARRAY_SIZE(pcc5_periph_plat_sels), true, true, true, base + 0xf8, 1);
clks[IMX8ULP_CLK_CSI_CLK_UI] = imx8ulp_clk_hw_composite("csi_clk_ui", pcc5_periph_plat_sels, ARRAY_SIZE(pcc5_periph_plat_sels), true, true, true, base + 0x10c, 1);
clks[IMX8ULP_CLK_CSI_CLK_ESC] = imx8ulp_clk_hw_composite("csi_clk_esc", pcc5_periph_plat_sels, ARRAY_SIZE(pcc5_periph_plat_sels), true, true, true, base + 0x110, 1);
clks[IMX8ULP_CLK_RGPIOD] = imx_clk_hw_gate("rgpiod", "lpav_axi_div", base + 0x114, 30);
clks[IMX8ULP_CLK_DSI_TX_ESC] = imx_clk_hw_fixed_factor("mipi_dsi_tx_esc", "dsi", 1, 4);
imx_check_clk_hws(clks, clk_data->num);
ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clk_data);
if (ret)
return ret;
/* register the pcc5 reset controller */
return imx8ulp_pcc_reset_init(pdev, base, pcc5_resets, ARRAY_SIZE(pcc5_resets));
}
static int imx8ulp_clk_probe(struct platform_device *pdev)
{
int (*probe)(struct platform_device *pdev);
probe = of_device_get_match_data(&pdev->dev);
if (probe)
return probe(pdev);
return 0;
}
static const struct of_device_id imx8ulp_clk_dt_ids[] = {
{ .compatible = "fsl,imx8ulp-pcc3", .data = imx8ulp_clk_pcc3_init },
{ .compatible = "fsl,imx8ulp-pcc4", .data = imx8ulp_clk_pcc4_init },
{ .compatible = "fsl,imx8ulp-pcc5", .data = imx8ulp_clk_pcc5_init },
{ .compatible = "fsl,imx8ulp-cgc2", .data = imx8ulp_clk_cgc2_init },
{ .compatible = "fsl,imx8ulp-cgc1", .data = imx8ulp_clk_cgc1_init },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, imx8ulp_clk_dt_ids);
static struct platform_driver imx8ulp_clk_driver = {
.probe = imx8ulp_clk_probe,
.driver = {
.name = KBUILD_MODNAME,
.of_match_table = imx8ulp_clk_dt_ids,
},
};
module_platform_driver(imx8ulp_clk_driver);
MODULE_AUTHOR("Peng Fan <peng.fan@nxp.com>");
MODULE_DESCRIPTION("NXP i.MX8ULP clock driver");
MODULE_LICENSE("GPL v2");

View file

@ -161,8 +161,17 @@ static int clk_pfdv2_set_rate(struct clk_hw *hw, unsigned long rate,
if (!rate)
return -EINVAL;
/* PFD can NOT change rate without gating */
WARN_ON(clk_pfdv2_is_enabled(hw));
/*
* PFD can NOT change rate without gating.
* as the PFDs may enabled in HW by default but no
* consumer used it, the enable count is '0', so the
* 'SET_RATE_GATE' can NOT help on blocking the set_rate
* ops especially for 'assigned-clock-xxx'. In order
* to simplify the case, just disable the PFD if it is
* enabled in HW but not in SW.
*/
if (clk_pfdv2_is_enabled(hw))
clk_pfdv2_disable(hw);
tmp = tmp * 18 + rate / 2;
do_div(tmp, rate);
@ -191,8 +200,8 @@ static const struct clk_ops clk_pfdv2_ops = {
.is_enabled = clk_pfdv2_is_enabled,
};
struct clk_hw *imx_clk_hw_pfdv2(const char *name, const char *parent_name,
void __iomem *reg, u8 idx)
struct clk_hw *imx_clk_hw_pfdv2(enum imx_pfdv2_type type, const char *name,
const char *parent_name, void __iomem *reg, u8 idx)
{
struct clk_init_data init;
struct clk_pfdv2 *pfd;
@ -214,7 +223,10 @@ struct clk_hw *imx_clk_hw_pfdv2(const char *name, const char *parent_name,
init.ops = &clk_pfdv2_ops;
init.parent_names = &parent_name;
init.num_parents = 1;
init.flags = CLK_SET_RATE_GATE | CLK_SET_RATE_PARENT;
if (type == IMX_PFDV2_IMX7ULP)
init.flags = CLK_SET_RATE_GATE | CLK_SET_RATE_PARENT;
else
init.flags = CLK_SET_RATE_GATE;
pfd->hw.init = &init;
@ -227,3 +239,4 @@ struct clk_hw *imx_clk_hw_pfdv2(const char *name, const char *parent_name,
return hw;
}
EXPORT_SYMBOL_GPL(imx_clk_hw_pfdv2);

View file

@ -23,14 +23,17 @@
/* PLL Configuration Register (xPLLCFG) */
#define PLL_CFG_OFFSET 0x08
#define IMX8ULP_PLL_CFG_OFFSET 0x10
#define BP_PLL_MULT 16
#define BM_PLL_MULT (0x7f << 16)
/* PLL Numerator Register (xPLLNUM) */
#define PLL_NUM_OFFSET 0x10
#define IMX8ULP_PLL_NUM_OFFSET 0x1c
/* PLL Denominator Register (xPLLDENOM) */
#define PLL_DENOM_OFFSET 0x14
#define IMX8ULP_PLL_DENOM_OFFSET 0x18
#define MAX_MFD 0x3fffffff
#define DEFAULT_MFD 1000000
@ -38,6 +41,9 @@
struct clk_pllv4 {
struct clk_hw hw;
void __iomem *base;
u32 cfg_offset;
u32 num_offset;
u32 denom_offset;
};
/* Valid PLL MULT Table */
@ -72,12 +78,12 @@ static unsigned long clk_pllv4_recalc_rate(struct clk_hw *hw,
u32 mult, mfn, mfd;
u64 temp64;
mult = readl_relaxed(pll->base + PLL_CFG_OFFSET);
mult = readl_relaxed(pll->base + pll->cfg_offset);
mult &= BM_PLL_MULT;
mult >>= BP_PLL_MULT;
mfn = readl_relaxed(pll->base + PLL_NUM_OFFSET);
mfd = readl_relaxed(pll->base + PLL_DENOM_OFFSET);
mfn = readl_relaxed(pll->base + pll->num_offset);
mfd = readl_relaxed(pll->base + pll->denom_offset);
temp64 = parent_rate;
temp64 *= mfn;
do_div(temp64, mfd);
@ -165,13 +171,13 @@ static int clk_pllv4_set_rate(struct clk_hw *hw, unsigned long rate,
do_div(temp64, parent_rate);
mfn = temp64;
val = readl_relaxed(pll->base + PLL_CFG_OFFSET);
val = readl_relaxed(pll->base + pll->cfg_offset);
val &= ~BM_PLL_MULT;
val |= mult << BP_PLL_MULT;
writel_relaxed(val, pll->base + PLL_CFG_OFFSET);
writel_relaxed(val, pll->base + pll->cfg_offset);
writel_relaxed(mfn, pll->base + PLL_NUM_OFFSET);
writel_relaxed(mfd, pll->base + PLL_DENOM_OFFSET);
writel_relaxed(mfn, pll->base + pll->num_offset);
writel_relaxed(mfd, pll->base + pll->denom_offset);
return 0;
}
@ -207,8 +213,8 @@ static const struct clk_ops clk_pllv4_ops = {
.is_prepared = clk_pllv4_is_prepared,
};
struct clk_hw *imx_clk_hw_pllv4(const char *name, const char *parent_name,
void __iomem *base)
struct clk_hw *imx_clk_hw_pllv4(enum imx_pllv4_type type, const char *name,
const char *parent_name, void __iomem *base)
{
struct clk_pllv4 *pll;
struct clk_hw *hw;
@ -221,6 +227,16 @@ struct clk_hw *imx_clk_hw_pllv4(const char *name, const char *parent_name,
pll->base = base;
if (type == IMX_PLLV4_IMX8ULP) {
pll->cfg_offset = IMX8ULP_PLL_CFG_OFFSET;
pll->num_offset = IMX8ULP_PLL_NUM_OFFSET;
pll->denom_offset = IMX8ULP_PLL_DENOM_OFFSET;
} else {
pll->cfg_offset = PLL_CFG_OFFSET;
pll->num_offset = PLL_NUM_OFFSET;
pll->denom_offset = PLL_DENOM_OFFSET;
}
init.name = name;
init.ops = &clk_pllv4_ops;
init.parent_names = &parent_name;
@ -238,3 +254,4 @@ struct clk_hw *imx_clk_hw_pllv4(const char *name, const char *parent_name,
return hw;
}
EXPORT_SYMBOL_GPL(imx_clk_hw_pllv4);

View file

@ -42,6 +42,16 @@ enum imx_pll14xx_type {
PLL_1443X,
};
enum imx_pllv4_type {
IMX_PLLV4_IMX7ULP,
IMX_PLLV4_IMX8ULP,
};
enum imx_pfdv2_type {
IMX_PFDV2_IMX7ULP,
IMX_PFDV2_IMX8ULP,
};
/* NOTE: Rate table should be kept sorted in descending order. */
struct imx_pll14xx_rate_table {
unsigned int rate;
@ -88,9 +98,6 @@ extern struct imx_pll14xx_clk imx_1443x_dram_pll;
#define imx_clk_divider(name, parent, reg, shift, width) \
to_clk(imx_clk_hw_divider(name, parent, reg, shift, width))
#define imx_clk_divider2(name, parent, reg, shift, width) \
to_clk(imx_clk_hw_divider2(name, parent, reg, shift, width))
#define imx_clk_divider_flags(name, parent, reg, shift, width, flags) \
to_clk(imx_clk_hw_divider_flags(name, parent, reg, shift, width, flags))
@ -103,40 +110,93 @@ extern struct imx_pll14xx_clk imx_1443x_dram_pll;
#define imx_clk_gate2(name, parent, reg, shift) \
to_clk(imx_clk_hw_gate2(name, parent, reg, shift))
#define imx_clk_gate2_cgr(name, parent, reg, shift, cgr_val) \
to_clk(__imx_clk_hw_gate2(name, parent, reg, shift, cgr_val, 0, NULL))
#define imx_clk_gate2_flags(name, parent, reg, shift, flags) \
to_clk(imx_clk_hw_gate2_flags(name, parent, reg, shift, flags))
#define imx_clk_gate2_shared2(name, parent, reg, shift, share_count) \
to_clk(imx_clk_hw_gate2_shared2(name, parent, reg, shift, share_count))
#define imx_clk_gate3(name, parent, reg, shift) \
to_clk(imx_clk_hw_gate3(name, parent, reg, shift))
#define imx_clk_gate4(name, parent, reg, shift) \
to_clk(imx_clk_hw_gate4(name, parent, reg, shift))
#define imx_clk_mux(name, reg, shift, width, parents, num_parents) \
to_clk(imx_clk_hw_mux(name, reg, shift, width, parents, num_parents))
#define imx_clk_mux_flags(name, reg, shift, width, parents, num_parents, flags) \
to_clk(imx_clk_hw_mux_flags(name, reg, shift, width, parents, num_parents, flags))
#define imx_clk_mux2_flags(name, reg, shift, width, parents, num_parents, flags) \
to_clk(imx_clk_hw_mux2_flags(name, reg, shift, width, parents, num_parents, flags))
#define imx_clk_pllv1(type, name, parent, base) \
to_clk(imx_clk_hw_pllv1(type, name, parent, base))
#define imx_clk_pllv2(name, parent, base) \
to_clk(imx_clk_hw_pllv2(name, parent, base))
#define imx_clk_frac_pll(name, parent_name, base) \
to_clk(imx_clk_hw_frac_pll(name, parent_name, base))
#define imx_clk_mux_flags(name, reg, shift, width, parents, num_parents, flags) \
to_clk(imx_clk_hw_mux_flags(name, reg, shift, width, parents, num_parents, flags))
#define imx_clk_sscg_pll(name, parent_names, num_parents, parent,\
bypass1, bypass2, base, flags) \
to_clk(imx_clk_hw_sscg_pll(name, parent_names, num_parents, parent,\
bypass1, bypass2, base, flags))
#define imx_clk_hw_gate(name, parent, reg, shift) \
imx_clk_hw_gate_flags(name, parent, reg, shift, 0)
struct clk *imx_clk_pll14xx(const char *name, const char *parent_name,
void __iomem *base, const struct imx_pll14xx_clk *pll_clk);
#define imx_clk_hw_gate2(name, parent, reg, shift) \
imx_clk_hw_gate2_flags(name, parent, reg, shift, 0)
#define imx_clk_pll14xx(name, parent_name, base, pll_clk) \
to_clk(imx_clk_hw_pll14xx(name, parent_name, base, pll_clk))
#define imx_clk_hw_gate_dis(name, parent, reg, shift) \
imx_clk_hw_gate_dis_flags(name, parent, reg, shift, 0)
#define imx_clk_hw_gate_dis_flags(name, parent, reg, shift, flags) \
__imx_clk_hw_gate(name, parent, reg, shift, flags, CLK_GATE_SET_TO_DISABLE)
#define imx_clk_hw_gate_flags(name, parent, reg, shift, flags) \
__imx_clk_hw_gate(name, parent, reg, shift, flags, 0)
#define imx_clk_hw_gate2_flags(name, parent, reg, shift, flags) \
__imx_clk_hw_gate2(name, parent, reg, shift, 0x3, flags, NULL)
#define imx_clk_hw_gate2_shared(name, parent, reg, shift, shared_count) \
__imx_clk_hw_gate2(name, parent, reg, shift, 0x3, 0, shared_count)
#define imx_clk_hw_gate2_shared2(name, parent, reg, shift, shared_count) \
__imx_clk_hw_gate2(name, parent, reg, shift, 0x3, CLK_OPS_PARENT_ENABLE, shared_count)
#define imx_clk_hw_gate3(name, parent, reg, shift) \
imx_clk_hw_gate3_flags(name, parent, reg, shift, 0)
#define imx_clk_hw_gate3_flags(name, parent, reg, shift, flags) \
__imx_clk_hw_gate(name, parent, reg, shift, flags | CLK_OPS_PARENT_ENABLE, 0)
#define imx_clk_hw_gate4(name, parent, reg, shift) \
imx_clk_hw_gate4_flags(name, parent, reg, shift, 0)
#define imx_clk_hw_gate4_flags(name, parent, reg, shift, flags) \
imx_clk_hw_gate2_flags(name, parent, reg, shift, flags | CLK_OPS_PARENT_ENABLE)
#define imx_clk_hw_mux2(name, reg, shift, width, parents, num_parents) \
imx_clk_hw_mux2_flags(name, reg, shift, width, parents, num_parents, 0)
#define imx_clk_hw_mux(name, reg, shift, width, parents, num_parents) \
__imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, 0, 0)
#define imx_clk_hw_mux_flags(name, reg, shift, width, parents, num_parents, flags) \
__imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, flags, 0)
#define imx_clk_hw_mux_ldb(name, reg, shift, width, parents, num_parents) \
__imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, CLK_SET_RATE_PARENT, CLK_MUX_READ_ONLY)
#define imx_clk_hw_mux2_flags(name, reg, shift, width, parents, num_parents, flags) \
__imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, flags | CLK_OPS_PARENT_ENABLE, 0)
#define imx_clk_hw_divider(name, parent, reg, shift, width) \
__imx_clk_hw_divider(name, parent, reg, shift, width, CLK_SET_RATE_PARENT)
#define imx_clk_hw_divider2(name, parent, reg, shift, width) \
__imx_clk_hw_divider(name, parent, reg, shift, width, \
CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE)
#define imx_clk_hw_divider_flags(name, parent, reg, shift, width, flags) \
__imx_clk_hw_divider(name, parent, reg, shift, width, flags)
#define imx_clk_hw_pll14xx(name, parent_name, base, pll_clk) \
imx_dev_clk_hw_pll14xx(NULL, name, parent_name, base, pll_clk)
struct clk_hw *imx_dev_clk_hw_pll14xx(struct device *dev, const char *name,
const char *parent_name, void __iomem *base,
@ -191,8 +251,8 @@ struct clk_hw *imx_clk_hw_pllv3(enum imx_pllv3_type type, const char *name,
.kdiv = (_k), \
}
struct clk_hw *imx_clk_hw_pllv4(const char *name, const char *parent_name,
void __iomem *base);
struct clk_hw *imx_clk_hw_pllv4(enum imx_pllv4_type type, const char *name,
const char *parent_name, void __iomem *base);
struct clk_hw *clk_hw_register_gate2(struct device *dev, const char *name,
const char *parent_name, unsigned long flags,
@ -215,8 +275,8 @@ struct clk_hw *imx_clk_hw_gate_exclusive(const char *name, const char *parent,
struct clk_hw *imx_clk_hw_pfd(const char *name, const char *parent_name,
void __iomem *reg, u8 idx);
struct clk_hw *imx_clk_hw_pfdv2(const char *name, const char *parent_name,
void __iomem *reg, u8 idx);
struct clk_hw *imx_clk_hw_pfdv2(enum imx_pfdv2_type type, const char *name,
const char *parent_name, void __iomem *reg, u8 idx);
struct clk_hw *imx_clk_hw_busy_divider(const char *name, const char *parent_name,
void __iomem *reg, u8 shift, u8 width,
@ -232,6 +292,12 @@ struct clk_hw *imx7ulp_clk_hw_composite(const char *name,
bool rate_present, bool gate_present,
void __iomem *reg);
struct clk_hw *imx8ulp_clk_hw_composite(const char *name,
const char * const *parent_names,
int num_parents, bool mux_present,
bool rate_present, bool gate_present,
void __iomem *reg, bool has_swrst);
struct clk_hw *imx_clk_hw_fixup_divider(const char *name, const char *parent,
void __iomem *reg, u8 shift, u8 width,
void (*fixup)(u32 *val));
@ -247,27 +313,11 @@ static inline struct clk *to_clk(struct clk_hw *hw)
return hw->clk;
}
static inline struct clk_hw *imx_clk_hw_pll14xx(const char *name, const char *parent_name,
void __iomem *base,
const struct imx_pll14xx_clk *pll_clk)
{
return imx_dev_clk_hw_pll14xx(NULL, name, parent_name, base, pll_clk);
}
static inline struct clk_hw *imx_clk_hw_fixed(const char *name, int rate)
{
return clk_hw_register_fixed_rate(NULL, name, NULL, 0, rate);
}
static inline struct clk_hw *imx_clk_hw_mux_ldb(const char *name, void __iomem *reg,
u8 shift, u8 width, const char * const *parents,
int num_parents)
{
return clk_hw_register_mux(NULL, name, parents, num_parents,
CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT, reg,
shift, width, CLK_MUX_READ_ONLY, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_fixed_factor(const char *name,
const char *parent, unsigned int mult, unsigned int div)
{
@ -275,16 +325,7 @@ static inline struct clk_hw *imx_clk_hw_fixed_factor(const char *name,
CLK_SET_RATE_PARENT, mult, div);
}
static inline struct clk_hw *imx_clk_hw_divider(const char *name,
const char *parent,
void __iomem *reg, u8 shift,
u8 width)
{
return clk_hw_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_divider_flags(const char *name,
static inline struct clk_hw *__imx_clk_hw_divider(const char *name,
const char *parent,
void __iomem *reg, u8 shift,
u8 width, unsigned long flags)
@ -293,237 +334,31 @@ static inline struct clk_hw *imx_clk_hw_divider_flags(const char *name,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_divider2(const char *name, const char *parent,
void __iomem *reg, u8 shift, u8 width)
{
return clk_hw_register_divider(NULL, name, parent,
CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_divider2_flags(const char *name,
const char *parent, void __iomem *reg, u8 shift, u8 width,
unsigned long flags)
{
return clk_register_divider(NULL, name, parent,
flags | CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_gate_flags(const char *name, const char *parent,
void __iomem *reg, u8 shift, unsigned long flags)
static inline struct clk_hw *__imx_clk_hw_gate(const char *name, const char *parent,
void __iomem *reg, u8 shift,
unsigned long flags,
unsigned long clk_gate_flags)
{
return clk_hw_register_gate(NULL, name, parent, flags | CLK_SET_RATE_PARENT, reg,
shift, 0, &imx_ccm_lock);
shift, clk_gate_flags, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_gate(const char *name, const char *parent,
void __iomem *reg, u8 shift)
{
return clk_hw_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
shift, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_dev_clk_hw_gate(struct device *dev, const char *name,
const char *parent, void __iomem *reg, u8 shift)
{
return clk_hw_register_gate(dev, name, parent, CLK_SET_RATE_PARENT, reg,
shift, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_gate_dis(const char *name, const char *parent,
void __iomem *reg, u8 shift)
{
return clk_hw_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
shift, CLK_GATE_SET_TO_DISABLE, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_gate_dis_flags(const char *name, const char *parent,
void __iomem *reg, u8 shift, unsigned long flags)
{
return clk_hw_register_gate(NULL, name, parent, flags | CLK_SET_RATE_PARENT, reg,
shift, CLK_GATE_SET_TO_DISABLE, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_gate2(const char *name, const char *parent,
void __iomem *reg, u8 shift)
{
return clk_hw_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
shift, 0x3, 0x3, 0, &imx_ccm_lock, NULL);
}
static inline struct clk_hw *imx_clk_hw_gate2_flags(const char *name, const char *parent,
void __iomem *reg, u8 shift, unsigned long flags)
static inline struct clk_hw *__imx_clk_hw_gate2(const char *name, const char *parent,
void __iomem *reg, u8 shift, u8 cgr_val,
unsigned long flags,
unsigned int *share_count)
{
return clk_hw_register_gate2(NULL, name, parent, flags | CLK_SET_RATE_PARENT, reg,
shift, 0x3, 0x3, 0, &imx_ccm_lock, NULL);
shift, cgr_val, 0x3, 0, &imx_ccm_lock, share_count);
}
static inline struct clk_hw *imx_clk_hw_gate2_shared(const char *name,
const char *parent, void __iomem *reg, u8 shift,
unsigned int *share_count)
{
return clk_hw_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
shift, 0x3, 0x3, 0, &imx_ccm_lock, share_count);
}
static inline struct clk_hw *imx_clk_hw_gate2_shared2(const char *name,
const char *parent, void __iomem *reg, u8 shift,
unsigned int *share_count)
{
return clk_hw_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT |
CLK_OPS_PARENT_ENABLE, reg, shift, 0x3, 0x3, 0,
&imx_ccm_lock, share_count);
}
static inline struct clk_hw *imx_dev_clk_hw_gate_shared(struct device *dev,
const char *name, const char *parent,
void __iomem *reg, u8 shift,
unsigned int *share_count)
{
return clk_hw_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT |
CLK_OPS_PARENT_ENABLE, reg, shift, 0x1,
0x1, 0, &imx_ccm_lock, share_count);
}
static inline struct clk *imx_clk_gate2_cgr(const char *name,
const char *parent, void __iomem *reg, u8 shift, u8 cgr_val)
{
return clk_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
shift, cgr_val, 0x3, 0, &imx_ccm_lock, NULL);
}
static inline struct clk_hw *imx_clk_hw_gate3(const char *name, const char *parent,
void __iomem *reg, u8 shift)
{
return clk_hw_register_gate(NULL, name, parent,
CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
reg, shift, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_gate3_flags(const char *name,
const char *parent, void __iomem *reg, u8 shift,
unsigned long flags)
{
return clk_hw_register_gate(NULL, name, parent,
flags | CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
reg, shift, 0, &imx_ccm_lock);
}
#define imx_clk_gate3_flags(name, parent, reg, shift, flags) \
to_clk(imx_clk_hw_gate3_flags(name, parent, reg, shift, flags))
static inline struct clk_hw *imx_clk_hw_gate4(const char *name, const char *parent,
void __iomem *reg, u8 shift)
{
return clk_hw_register_gate2(NULL, name, parent,
CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
reg, shift, 0x3, 0x3, 0, &imx_ccm_lock, NULL);
}
static inline struct clk_hw *imx_clk_hw_gate4_flags(const char *name,
const char *parent, void __iomem *reg, u8 shift,
unsigned long flags)
{
return clk_hw_register_gate2(NULL, name, parent,
flags | CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
reg, shift, 0x3, 0x3, 0, &imx_ccm_lock, NULL);
}
#define imx_clk_gate4_flags(name, parent, reg, shift, flags) \
to_clk(imx_clk_hw_gate4_flags(name, parent, reg, shift, flags))
static inline struct clk_hw *imx_clk_hw_mux(const char *name, void __iomem *reg,
static inline struct clk_hw *__imx_clk_hw_mux(const char *name, void __iomem *reg,
u8 shift, u8 width, const char * const *parents,
int num_parents)
int num_parents, unsigned long flags, unsigned long clk_mux_flags)
{
return clk_hw_register_mux(NULL, name, parents, num_parents,
CLK_SET_RATE_NO_REPARENT, reg, shift,
width, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_dev_clk_hw_mux(struct device *dev,
const char *name, void __iomem *reg, u8 shift,
u8 width, const char * const *parents, int num_parents)
{
return clk_hw_register_mux(dev, name, parents, num_parents,
CLK_SET_RATE_NO_REPARENT | CLK_SET_PARENT_GATE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_mux2(const char *name, void __iomem *reg,
u8 shift, u8 width, const char * const *parents,
int num_parents)
{
return clk_register_mux(NULL, name, parents, num_parents,
CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_mux2(const char *name, void __iomem *reg,
u8 shift, u8 width,
const char * const *parents,
int num_parents)
{
return clk_hw_register_mux(NULL, name, parents, num_parents,
CLK_SET_RATE_NO_REPARENT |
CLK_OPS_PARENT_ENABLE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_mux_flags(const char *name,
void __iomem *reg, u8 shift, u8 width,
const char * const *parents, int num_parents,
unsigned long flags)
{
return clk_register_mux(NULL, name, parents, num_parents,
flags | CLK_SET_RATE_NO_REPARENT, reg, shift, width, 0,
&imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_mux2_flags(const char *name,
void __iomem *reg, u8 shift, u8 width,
const char * const *parents,
int num_parents, unsigned long flags)
{
return clk_hw_register_mux(NULL, name, parents, num_parents,
flags | CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_mux2_flags(const char *name,
void __iomem *reg, u8 shift, u8 width,
const char * const *parents,
int num_parents, unsigned long flags)
{
return clk_register_mux(NULL, name, parents, num_parents,
flags | CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_clk_hw_mux_flags(const char *name,
void __iomem *reg, u8 shift,
u8 width,
const char * const *parents,
int num_parents,
unsigned long flags)
{
return clk_hw_register_mux(NULL, name, parents, num_parents,
flags | CLK_SET_RATE_NO_REPARENT,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk_hw *imx_dev_clk_hw_mux_flags(struct device *dev,
const char *name,
void __iomem *reg, u8 shift,
u8 width,
const char * const *parents,
int num_parents,
unsigned long flags)
{
return clk_hw_register_mux(dev, name, parents, num_parents,
flags | CLK_SET_RATE_NO_REPARENT,
reg, shift, width, 0, &imx_ccm_lock);
flags | CLK_SET_RATE_NO_REPARENT, reg, shift,
width, clk_mux_flags, &imx_ccm_lock);
}
struct clk_hw *imx_clk_hw_cpu(const char *name, const char *parent_name,
@ -534,65 +369,55 @@ struct clk_hw *imx_clk_hw_cpu(const char *name, const char *parent_name,
#define IMX_COMPOSITE_BUS BIT(1)
#define IMX_COMPOSITE_FW_MANAGED BIT(2)
struct clk_hw *imx8m_clk_hw_composite_flags(const char *name,
#define IMX_COMPOSITE_CLK_FLAGS_DEFAULT \
(CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE)
#define IMX_COMPOSITE_CLK_FLAGS_CRITICAL \
(IMX_COMPOSITE_CLK_FLAGS_DEFAULT | CLK_IS_CRITICAL)
#define IMX_COMPOSITE_CLK_FLAGS_GET_RATE_NO_CACHE \
(IMX_COMPOSITE_CLK_FLAGS_DEFAULT | CLK_GET_RATE_NOCACHE)
#define IMX_COMPOSITE_CLK_FLAGS_CRITICAL_GET_RATE_NO_CACHE \
(IMX_COMPOSITE_CLK_FLAGS_GET_RATE_NO_CACHE | CLK_IS_CRITICAL)
struct clk_hw *__imx8m_clk_hw_composite(const char *name,
const char * const *parent_names,
int num_parents,
void __iomem *reg,
u32 composite_flags,
unsigned long flags);
#define imx8m_clk_hw_composite_bus(name, parent_names, reg) \
imx8m_clk_hw_composite_flags(name, parent_names, \
ARRAY_SIZE(parent_names), reg, \
IMX_COMPOSITE_BUS, \
CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE)
#define imx8m_clk_hw_composite_bus_critical(name, parent_names, reg) \
imx8m_clk_hw_composite_flags(name, parent_names, ARRAY_SIZE(parent_names), reg, \
IMX_COMPOSITE_BUS, \
CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE | CLK_IS_CRITICAL)
#define imx8m_clk_hw_composite_core(name, parent_names, reg) \
imx8m_clk_hw_composite_flags(name, parent_names, \
ARRAY_SIZE(parent_names), reg, \
IMX_COMPOSITE_CORE, \
CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE)
#define imx8m_clk_composite_flags(name, parent_names, num_parents, reg, \
flags) \
to_clk(imx8m_clk_hw_composite_flags(name, parent_names, \
num_parents, reg, 0, flags))
#define __imx8m_clk_hw_composite(name, parent_names, reg, flags) \
imx8m_clk_hw_composite_flags(name, parent_names, \
ARRAY_SIZE(parent_names), reg, 0, \
flags | CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE)
#define __imx8m_clk_hw_fw_managed_composite(name, parent_names, reg, flags) \
imx8m_clk_hw_composite_flags(name, parent_names, \
ARRAY_SIZE(parent_names), reg, IMX_COMPOSITE_FW_MANAGED, \
flags | CLK_GET_RATE_NOCACHE | CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE)
#define imx8m_clk_hw_fw_managed_composite(name, parent_names, reg) \
__imx8m_clk_hw_fw_managed_composite(name, parent_names, reg, 0)
#define imx8m_clk_hw_fw_managed_composite_critical(name, parent_names, reg) \
__imx8m_clk_hw_fw_managed_composite(name, parent_names, reg, CLK_IS_CRITICAL)
#define __imx8m_clk_composite(name, parent_names, reg, flags) \
to_clk(__imx8m_clk_hw_composite(name, parent_names, reg, flags))
#define _imx8m_clk_hw_composite(name, parent_names, reg, composite_flags, flags) \
__imx8m_clk_hw_composite(name, parent_names, \
ARRAY_SIZE(parent_names), reg, composite_flags, flags)
#define imx8m_clk_hw_composite(name, parent_names, reg) \
__imx8m_clk_hw_composite(name, parent_names, reg, 0)
#define imx8m_clk_composite(name, parent_names, reg) \
__imx8m_clk_composite(name, parent_names, reg, 0)
_imx8m_clk_hw_composite(name, parent_names, reg, \
IMX_COMPOSITE_CORE, IMX_COMPOSITE_CLK_FLAGS_DEFAULT)
#define imx8m_clk_hw_composite_critical(name, parent_names, reg) \
__imx8m_clk_hw_composite(name, parent_names, reg, CLK_IS_CRITICAL)
_imx8m_clk_hw_composite(name, parent_names, reg, \
IMX_COMPOSITE_CORE, IMX_COMPOSITE_CLK_FLAGS_CRITICAL)
#define imx8m_clk_composite_critical(name, parent_names, reg) \
__imx8m_clk_composite(name, parent_names, reg, CLK_IS_CRITICAL)
#define imx8m_clk_hw_composite_bus(name, parent_names, reg) \
_imx8m_clk_hw_composite(name, parent_names, reg, \
IMX_COMPOSITE_BUS, IMX_COMPOSITE_CLK_FLAGS_DEFAULT)
#define imx8m_clk_hw_composite_bus_critical(name, parent_names, reg) \
_imx8m_clk_hw_composite(name, parent_names, reg, \
IMX_COMPOSITE_BUS, IMX_COMPOSITE_CLK_FLAGS_CRITICAL)
#define imx8m_clk_hw_composite_core(name, parent_names, reg) \
_imx8m_clk_hw_composite(name, parent_names, reg, \
IMX_COMPOSITE_CORE, IMX_COMPOSITE_CLK_FLAGS_DEFAULT)
#define imx8m_clk_hw_fw_managed_composite(name, parent_names, reg) \
_imx8m_clk_hw_composite(name, parent_names, reg, \
IMX_COMPOSITE_FW_MANAGED, \
IMX_COMPOSITE_CLK_FLAGS_GET_RATE_NO_CACHE)
#define imx8m_clk_hw_fw_managed_composite_critical(name, parent_names, reg) \
_imx8m_clk_hw_composite(name, parent_names, reg, \
IMX_COMPOSITE_FW_MANAGED, \
IMX_COMPOSITE_CLK_FLAGS_CRITICAL_GET_RATE_NO_CACHE)
struct clk_hw *imx_clk_hw_divider_gate(const char *name, const char *parent_name,
unsigned long flags, void __iomem *reg, u8 shift, u8 width,

View file

@ -8,6 +8,9 @@ obj-y += clk-prcc.o
obj-y += clk-prcmu.o
obj-y += clk-sysctrl.o
# Reset control
obj-y += reset-prcc.o
# Clock definitions
obj-y += u8500_of_clk.o

19
drivers/clk/ux500/prcc.h Normal file
View file

@ -0,0 +1,19 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __PRCC_H
#define __PRCC_H
#define PRCC_NUM_PERIPH_CLUSTERS 6
#define PRCC_PERIPHS_PER_CLUSTER 32
/* CLKRST4 is missing making it hard to index things */
enum clkrst_index {
CLKRST1_INDEX = 0,
CLKRST2_INDEX,
CLKRST3_INDEX,
CLKRST5_INDEX,
CLKRST6_INDEX,
CLKRST_MAX,
};
#endif

View file

@ -0,0 +1,181 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Reset controller portions for the U8500 PRCC
* Copyright (C) 2021 Linus Walleij <linus.walleij@linaro.org>
*/
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/types.h>
#include <linux/reset-controller.h>
#include <linux/bits.h>
#include <linux/delay.h>
#include "prcc.h"
#include "reset-prcc.h"
#define to_u8500_prcc_reset(p) container_of((p), struct u8500_prcc_reset, rcdev)
/* This macro flattens the 2-dimensional PRCC numberspace */
#define PRCC_RESET_LINE(prcc_num, bit) \
(((prcc_num) * PRCC_PERIPHS_PER_CLUSTER) + (bit))
/*
* Reset registers in each PRCC - the reset lines are active low
* so what you need to do is write a bit for the peripheral you
* want to put into reset into the CLEAR register, this will assert
* the reset by pulling the line low. SET take the device out of
* reset. The status reflects the actual state of the line.
*/
#define PRCC_K_SOFTRST_SET 0x018
#define PRCC_K_SOFTRST_CLEAR 0x01c
#define PRCC_K_RST_STATUS 0x020
static int prcc_num_to_index(unsigned int num)
{
switch (num) {
case 1:
return CLKRST1_INDEX;
case 2:
return CLKRST2_INDEX;
case 3:
return CLKRST3_INDEX;
case 5:
return CLKRST5_INDEX;
case 6:
return CLKRST6_INDEX;
}
return -EINVAL;
}
static void __iomem *u8500_prcc_reset_base(struct u8500_prcc_reset *ur,
unsigned long id)
{
unsigned int prcc_num, index;
prcc_num = id / PRCC_PERIPHS_PER_CLUSTER;
index = prcc_num_to_index(prcc_num);
if (index > ARRAY_SIZE(ur->base))
return NULL;
return ur->base[index];
}
static int u8500_prcc_reset(struct reset_controller_dev *rcdev,
unsigned long id)
{
struct u8500_prcc_reset *ur = to_u8500_prcc_reset(rcdev);
void __iomem *base = u8500_prcc_reset_base(ur, id);
unsigned int bit = id % PRCC_PERIPHS_PER_CLUSTER;
pr_debug("PRCC cycle reset id %lu, bit %u\n", id, bit);
/*
* Assert reset and then release it. The one microsecond
* delay is found in the vendor reference code.
*/
writel(BIT(bit), base + PRCC_K_SOFTRST_CLEAR);
udelay(1);
writel(BIT(bit), base + PRCC_K_SOFTRST_SET);
udelay(1);
return 0;
}
static int u8500_prcc_reset_assert(struct reset_controller_dev *rcdev,
unsigned long id)
{
struct u8500_prcc_reset *ur = to_u8500_prcc_reset(rcdev);
void __iomem *base = u8500_prcc_reset_base(ur, id);
unsigned int bit = id % PRCC_PERIPHS_PER_CLUSTER;
pr_debug("PRCC assert reset id %lu, bit %u\n", id, bit);
writel(BIT(bit), base + PRCC_K_SOFTRST_CLEAR);
return 0;
}
static int u8500_prcc_reset_deassert(struct reset_controller_dev *rcdev,
unsigned long id)
{
struct u8500_prcc_reset *ur = to_u8500_prcc_reset(rcdev);
void __iomem *base = u8500_prcc_reset_base(ur, id);
unsigned int bit = id % PRCC_PERIPHS_PER_CLUSTER;
pr_debug("PRCC deassert reset id %lu, bit %u\n", id, bit);
writel(BIT(bit), base + PRCC_K_SOFTRST_SET);
return 0;
}
static int u8500_prcc_reset_status(struct reset_controller_dev *rcdev,
unsigned long id)
{
struct u8500_prcc_reset *ur = to_u8500_prcc_reset(rcdev);
void __iomem *base = u8500_prcc_reset_base(ur, id);
unsigned int bit = id % PRCC_PERIPHS_PER_CLUSTER;
u32 val;
pr_debug("PRCC check status on reset line id %lu, bit %u\n", id, bit);
val = readl(base + PRCC_K_RST_STATUS);
/* Active low so return the inverse value of the bit */
return !(val & BIT(bit));
}
static const struct reset_control_ops u8500_prcc_reset_ops = {
.reset = u8500_prcc_reset,
.assert = u8500_prcc_reset_assert,
.deassert = u8500_prcc_reset_deassert,
.status = u8500_prcc_reset_status,
};
static int u8500_prcc_reset_xlate(struct reset_controller_dev *rcdev,
const struct of_phandle_args *reset_spec)
{
unsigned int prcc_num, bit;
if (reset_spec->args_count != 2)
return -EINVAL;
prcc_num = reset_spec->args[0];
bit = reset_spec->args[1];
if (prcc_num != 1 && prcc_num != 2 && prcc_num != 3 &&
prcc_num != 5 && prcc_num != 6) {
pr_err("%s: invalid PRCC %d\n", __func__, prcc_num);
return -EINVAL;
}
pr_debug("located reset line %d at PRCC %d bit %d\n",
PRCC_RESET_LINE(prcc_num, bit), prcc_num, bit);
return PRCC_RESET_LINE(prcc_num, bit);
}
void u8500_prcc_reset_init(struct device_node *np, struct u8500_prcc_reset *ur)
{
struct reset_controller_dev *rcdev = &ur->rcdev;
int ret;
int i;
for (i = 0; i < CLKRST_MAX; i++) {
ur->base[i] = ioremap(ur->phy_base[i], SZ_4K);
if (!ur->base[i])
pr_err("PRCC failed to remap for reset base %d (%08x)\n",
i, ur->phy_base[i]);
}
rcdev->owner = THIS_MODULE;
rcdev->ops = &u8500_prcc_reset_ops;
rcdev->of_node = np;
rcdev->of_reset_n_cells = 2;
rcdev->of_xlate = u8500_prcc_reset_xlate;
ret = reset_controller_register(rcdev);
if (ret)
pr_err("PRCC failed to register reset controller\n");
}

View file

@ -0,0 +1,23 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __RESET_PRCC_H
#define __RESET_PRCC_H
#include <linux/reset-controller.h>
#include <linux/io.h>
/**
* struct u8500_prcc_reset - U8500 PRCC reset controller state
* @rcdev: reset controller device
* @phy_base: the physical base address for each PRCC block
* @base: the remapped PRCC bases
*/
struct u8500_prcc_reset {
struct reset_controller_dev rcdev;
u32 phy_base[CLKRST_MAX];
void __iomem *base[CLKRST_MAX];
};
void u8500_prcc_reset_init(struct device_node *np, struct u8500_prcc_reset *ur);
#endif

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@ -10,10 +10,10 @@
#include <linux/of_address.h>
#include <linux/clk-provider.h>
#include <linux/mfd/dbx500-prcmu.h>
#include "clk.h"
#define PRCC_NUM_PERIPH_CLUSTERS 6
#define PRCC_PERIPHS_PER_CLUSTER 32
#include "clk.h"
#include "prcc.h"
#include "reset-prcc.h"
static struct clk *prcmu_clk[PRCMU_NUM_CLKS];
static struct clk *prcc_pclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
@ -46,16 +46,6 @@ static struct clk *ux500_twocell_get(struct of_phandle_args *clkspec,
return PRCC_SHOW(clk_data, base, bit);
}
/* CLKRST4 is missing making it hard to index things */
enum clkrst_index {
CLKRST1_INDEX = 0,
CLKRST2_INDEX,
CLKRST3_INDEX,
CLKRST5_INDEX,
CLKRST6_INDEX,
CLKRST_MAX,
};
static void u8500_clk_init(struct device_node *np)
{
struct prcmu_fw_version *fw_version;
@ -63,8 +53,18 @@ static void u8500_clk_init(struct device_node *np)
const char *sgaclk_parent = NULL;
struct clk *clk, *rtc_clk, *twd_clk;
u32 bases[CLKRST_MAX];
struct u8500_prcc_reset *rstc;
int i;
/*
* We allocate the reset controller here so that we can fill in the
* base addresses properly and pass to the reset controller init
* function later on.
*/
rstc = kzalloc(sizeof(*rstc), GFP_KERNEL);
if (!rstc)
return;
for (i = 0; i < ARRAY_SIZE(bases); i++) {
struct resource r;
@ -73,6 +73,7 @@ static void u8500_clk_init(struct device_node *np)
pr_err("failed to get CLKRST %d base address\n",
i + 1);
bases[i] = r.start;
rstc->phy_base[i] = r.start;
}
/* Clock sources */
@ -563,6 +564,9 @@ static void u8500_clk_init(struct device_node *np)
if (of_node_name_eq(child, "smp-twd-clock"))
of_clk_add_provider(child, of_clk_src_simple_get, twd_clk);
if (of_node_name_eq(child, "prcc-reset-controller"))
u8500_prcc_reset_init(child, rstc);
}
}
CLK_OF_DECLARE(u8500_clks, "stericsson,u8500-clks", u8500_clk_init);

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@ -0,0 +1,258 @@
/* SPDX-License-Identifier: GPL-2.0+ OR MIT */
/*
* Copyright 2021 NXP
*/
#ifndef __DT_BINDINGS_CLOCK_IMX8ULP_H
#define __DT_BINDINGS_CLOCK_IMX8ULP_H
#define IMX8ULP_CLK_DUMMY 0
/* CGC1 */
#define IMX8ULP_CLK_SPLL2 5
#define IMX8ULP_CLK_SPLL3 6
#define IMX8ULP_CLK_A35_SEL 7
#define IMX8ULP_CLK_A35_DIV 8
#define IMX8ULP_CLK_SPLL2_PRE_SEL 9
#define IMX8ULP_CLK_SPLL3_PRE_SEL 10
#define IMX8ULP_CLK_SPLL3_PFD0 11
#define IMX8ULP_CLK_SPLL3_PFD1 12
#define IMX8ULP_CLK_SPLL3_PFD2 13
#define IMX8ULP_CLK_SPLL3_PFD3 14
#define IMX8ULP_CLK_SPLL3_PFD0_DIV1 15
#define IMX8ULP_CLK_SPLL3_PFD0_DIV2 16
#define IMX8ULP_CLK_SPLL3_PFD1_DIV1 17
#define IMX8ULP_CLK_SPLL3_PFD1_DIV2 18
#define IMX8ULP_CLK_SPLL3_PFD2_DIV1 19
#define IMX8ULP_CLK_SPLL3_PFD2_DIV2 20
#define IMX8ULP_CLK_SPLL3_PFD3_DIV1 21
#define IMX8ULP_CLK_SPLL3_PFD3_DIV2 22
#define IMX8ULP_CLK_NIC_SEL 23
#define IMX8ULP_CLK_NIC_AD_DIVPLAT 24
#define IMX8ULP_CLK_NIC_PER_DIVPLAT 25
#define IMX8ULP_CLK_XBAR_SEL 26
#define IMX8ULP_CLK_XBAR_AD_DIVPLAT 27
#define IMX8ULP_CLK_XBAR_DIVBUS 28
#define IMX8ULP_CLK_XBAR_AD_SLOW 29
#define IMX8ULP_CLK_SOSC_DIV1 30
#define IMX8ULP_CLK_SOSC_DIV2 31
#define IMX8ULP_CLK_SOSC_DIV3 32
#define IMX8ULP_CLK_FROSC_DIV1 33
#define IMX8ULP_CLK_FROSC_DIV2 34
#define IMX8ULP_CLK_FROSC_DIV3 35
#define IMX8ULP_CLK_SPLL3_VCODIV 36
#define IMX8ULP_CLK_SPLL3_PFD0_DIV1_GATE 37
#define IMX8ULP_CLK_SPLL3_PFD0_DIV2_GATE 38
#define IMX8ULP_CLK_SPLL3_PFD1_DIV1_GATE 39
#define IMX8ULP_CLK_SPLL3_PFD1_DIV2_GATE 40
#define IMX8ULP_CLK_SPLL3_PFD2_DIV1_GATE 41
#define IMX8ULP_CLK_SPLL3_PFD2_DIV2_GATE 42
#define IMX8ULP_CLK_SPLL3_PFD3_DIV1_GATE 43
#define IMX8ULP_CLK_SPLL3_PFD3_DIV2_GATE 44
#define IMX8ULP_CLK_SOSC_DIV1_GATE 45
#define IMX8ULP_CLK_SOSC_DIV2_GATE 46
#define IMX8ULP_CLK_SOSC_DIV3_GATE 47
#define IMX8ULP_CLK_FROSC_DIV1_GATE 48
#define IMX8ULP_CLK_FROSC_DIV2_GATE 49
#define IMX8ULP_CLK_FROSC_DIV3_GATE 50
#define IMX8ULP_CLK_SAI4_SEL 51
#define IMX8ULP_CLK_SAI5_SEL 52
#define IMX8ULP_CLK_AUD_CLK1 53
#define IMX8ULP_CLK_ARM 54
#define IMX8ULP_CLK_ENET_TS_SEL 55
#define IMX8ULP_CLK_CGC1_END 56
/* CGC2 */
#define IMX8ULP_CLK_PLL4_PRE_SEL 0
#define IMX8ULP_CLK_PLL4 1
#define IMX8ULP_CLK_PLL4_VCODIV 2
#define IMX8ULP_CLK_DDR_SEL 3
#define IMX8ULP_CLK_DDR_DIV 4
#define IMX8ULP_CLK_LPAV_AXI_SEL 5
#define IMX8ULP_CLK_LPAV_AXI_DIV 6
#define IMX8ULP_CLK_LPAV_AHB_DIV 7
#define IMX8ULP_CLK_LPAV_BUS_DIV 8
#define IMX8ULP_CLK_PLL4_PFD0 9
#define IMX8ULP_CLK_PLL4_PFD1 10
#define IMX8ULP_CLK_PLL4_PFD2 11
#define IMX8ULP_CLK_PLL4_PFD3 12
#define IMX8ULP_CLK_PLL4_PFD0_DIV1_GATE 13
#define IMX8ULP_CLK_PLL4_PFD0_DIV2_GATE 14
#define IMX8ULP_CLK_PLL4_PFD1_DIV1_GATE 15
#define IMX8ULP_CLK_PLL4_PFD1_DIV2_GATE 16
#define IMX8ULP_CLK_PLL4_PFD2_DIV1_GATE 17
#define IMX8ULP_CLK_PLL4_PFD2_DIV2_GATE 18
#define IMX8ULP_CLK_PLL4_PFD3_DIV1_GATE 19
#define IMX8ULP_CLK_PLL4_PFD3_DIV2_GATE 20
#define IMX8ULP_CLK_PLL4_PFD0_DIV1 21
#define IMX8ULP_CLK_PLL4_PFD0_DIV2 22
#define IMX8ULP_CLK_PLL4_PFD1_DIV1 23
#define IMX8ULP_CLK_PLL4_PFD1_DIV2 24
#define IMX8ULP_CLK_PLL4_PFD2_DIV1 25
#define IMX8ULP_CLK_PLL4_PFD2_DIV2 26
#define IMX8ULP_CLK_PLL4_PFD3_DIV1 27
#define IMX8ULP_CLK_PLL4_PFD3_DIV2 28
#define IMX8ULP_CLK_CGC2_SOSC_DIV1_GATE 29
#define IMX8ULP_CLK_CGC2_SOSC_DIV2_GATE 30
#define IMX8ULP_CLK_CGC2_SOSC_DIV3_GATE 31
#define IMX8ULP_CLK_CGC2_SOSC_DIV1 32
#define IMX8ULP_CLK_CGC2_SOSC_DIV2 33
#define IMX8ULP_CLK_CGC2_SOSC_DIV3 34
#define IMX8ULP_CLK_CGC2_FROSC_DIV1_GATE 35
#define IMX8ULP_CLK_CGC2_FROSC_DIV2_GATE 36
#define IMX8ULP_CLK_CGC2_FROSC_DIV3_GATE 37
#define IMX8ULP_CLK_CGC2_FROSC_DIV1 38
#define IMX8ULP_CLK_CGC2_FROSC_DIV2 39
#define IMX8ULP_CLK_CGC2_FROSC_DIV3 40
#define IMX8ULP_CLK_AUD_CLK2 41
#define IMX8ULP_CLK_SAI6_SEL 42
#define IMX8ULP_CLK_SAI7_SEL 43
#define IMX8ULP_CLK_SPDIF_SEL 44
#define IMX8ULP_CLK_HIFI_SEL 45
#define IMX8ULP_CLK_HIFI_DIVCORE 46
#define IMX8ULP_CLK_HIFI_DIVPLAT 47
#define IMX8ULP_CLK_DSI_PHY_REF 48
#define IMX8ULP_CLK_CGC2_END 49
/* PCC3 */
#define IMX8ULP_CLK_WDOG3 0
#define IMX8ULP_CLK_WDOG4 1
#define IMX8ULP_CLK_LPIT1 2
#define IMX8ULP_CLK_TPM4 3
#define IMX8ULP_CLK_TPM5 4
#define IMX8ULP_CLK_FLEXIO1 5
#define IMX8ULP_CLK_I3C2 6
#define IMX8ULP_CLK_LPI2C4 7
#define IMX8ULP_CLK_LPI2C5 8
#define IMX8ULP_CLK_LPUART4 9
#define IMX8ULP_CLK_LPUART5 10
#define IMX8ULP_CLK_LPSPI4 11
#define IMX8ULP_CLK_LPSPI5 12
#define IMX8ULP_CLK_DMA1_MP 13
#define IMX8ULP_CLK_DMA1_CH0 14
#define IMX8ULP_CLK_DMA1_CH1 15
#define IMX8ULP_CLK_DMA1_CH2 16
#define IMX8ULP_CLK_DMA1_CH3 17
#define IMX8ULP_CLK_DMA1_CH4 18
#define IMX8ULP_CLK_DMA1_CH5 19
#define IMX8ULP_CLK_DMA1_CH6 20
#define IMX8ULP_CLK_DMA1_CH7 21
#define IMX8ULP_CLK_DMA1_CH8 22
#define IMX8ULP_CLK_DMA1_CH9 23
#define IMX8ULP_CLK_DMA1_CH10 24
#define IMX8ULP_CLK_DMA1_CH11 25
#define IMX8ULP_CLK_DMA1_CH12 26
#define IMX8ULP_CLK_DMA1_CH13 27
#define IMX8ULP_CLK_DMA1_CH14 28
#define IMX8ULP_CLK_DMA1_CH15 29
#define IMX8ULP_CLK_DMA1_CH16 30
#define IMX8ULP_CLK_DMA1_CH17 31
#define IMX8ULP_CLK_DMA1_CH18 32
#define IMX8ULP_CLK_DMA1_CH19 33
#define IMX8ULP_CLK_DMA1_CH20 34
#define IMX8ULP_CLK_DMA1_CH21 35
#define IMX8ULP_CLK_DMA1_CH22 36
#define IMX8ULP_CLK_DMA1_CH23 37
#define IMX8ULP_CLK_DMA1_CH24 38
#define IMX8ULP_CLK_DMA1_CH25 39
#define IMX8ULP_CLK_DMA1_CH26 40
#define IMX8ULP_CLK_DMA1_CH27 41
#define IMX8ULP_CLK_DMA1_CH28 42
#define IMX8ULP_CLK_DMA1_CH29 43
#define IMX8ULP_CLK_DMA1_CH30 44
#define IMX8ULP_CLK_DMA1_CH31 45
#define IMX8ULP_CLK_MU3_A 46
#define IMX8ULP_CLK_MU0_B 47
#define IMX8ULP_CLK_PCC3_END 48
/* PCC4 */
#define IMX8ULP_CLK_FLEXSPI2 0
#define IMX8ULP_CLK_TPM6 1
#define IMX8ULP_CLK_TPM7 2
#define IMX8ULP_CLK_LPI2C6 3
#define IMX8ULP_CLK_LPI2C7 4
#define IMX8ULP_CLK_LPUART6 5
#define IMX8ULP_CLK_LPUART7 6
#define IMX8ULP_CLK_SAI4 7
#define IMX8ULP_CLK_SAI5 8
#define IMX8ULP_CLK_PCTLE 9
#define IMX8ULP_CLK_PCTLF 10
#define IMX8ULP_CLK_USDHC0 11
#define IMX8ULP_CLK_USDHC1 12
#define IMX8ULP_CLK_USDHC2 13
#define IMX8ULP_CLK_USB0 14
#define IMX8ULP_CLK_USB0_PHY 15
#define IMX8ULP_CLK_USB1 16
#define IMX8ULP_CLK_USB1_PHY 17
#define IMX8ULP_CLK_USB_XBAR 18
#define IMX8ULP_CLK_ENET 19
#define IMX8ULP_CLK_SFA1 20
#define IMX8ULP_CLK_RGPIOE 21
#define IMX8ULP_CLK_RGPIOF 22
#define IMX8ULP_CLK_PCC4_END 23
/* PCC5 */
#define IMX8ULP_CLK_TPM8 0
#define IMX8ULP_CLK_SAI6 1
#define IMX8ULP_CLK_SAI7 2
#define IMX8ULP_CLK_SPDIF 3
#define IMX8ULP_CLK_ISI 4
#define IMX8ULP_CLK_CSI_REGS 5
#define IMX8ULP_CLK_PCTLD 6
#define IMX8ULP_CLK_CSI 7
#define IMX8ULP_CLK_DSI 8
#define IMX8ULP_CLK_WDOG5 9
#define IMX8ULP_CLK_EPDC 10
#define IMX8ULP_CLK_PXP 11
#define IMX8ULP_CLK_SFA2 12
#define IMX8ULP_CLK_GPU2D 13
#define IMX8ULP_CLK_GPU3D 14
#define IMX8ULP_CLK_DC_NANO 15
#define IMX8ULP_CLK_CSI_CLK_UI 16
#define IMX8ULP_CLK_CSI_CLK_ESC 17
#define IMX8ULP_CLK_RGPIOD 18
#define IMX8ULP_CLK_DMA2_MP 19
#define IMX8ULP_CLK_DMA2_CH0 20
#define IMX8ULP_CLK_DMA2_CH1 21
#define IMX8ULP_CLK_DMA2_CH2 22
#define IMX8ULP_CLK_DMA2_CH3 23
#define IMX8ULP_CLK_DMA2_CH4 24
#define IMX8ULP_CLK_DMA2_CH5 25
#define IMX8ULP_CLK_DMA2_CH6 26
#define IMX8ULP_CLK_DMA2_CH7 27
#define IMX8ULP_CLK_DMA2_CH8 28
#define IMX8ULP_CLK_DMA2_CH9 29
#define IMX8ULP_CLK_DMA2_CH10 30
#define IMX8ULP_CLK_DMA2_CH11 31
#define IMX8ULP_CLK_DMA2_CH12 32
#define IMX8ULP_CLK_DMA2_CH13 33
#define IMX8ULP_CLK_DMA2_CH14 34
#define IMX8ULP_CLK_DMA2_CH15 35
#define IMX8ULP_CLK_DMA2_CH16 36
#define IMX8ULP_CLK_DMA2_CH17 37
#define IMX8ULP_CLK_DMA2_CH18 38
#define IMX8ULP_CLK_DMA2_CH19 39
#define IMX8ULP_CLK_DMA2_CH20 40
#define IMX8ULP_CLK_DMA2_CH21 41
#define IMX8ULP_CLK_DMA2_CH22 42
#define IMX8ULP_CLK_DMA2_CH23 43
#define IMX8ULP_CLK_DMA2_CH24 44
#define IMX8ULP_CLK_DMA2_CH25 45
#define IMX8ULP_CLK_DMA2_CH26 46
#define IMX8ULP_CLK_DMA2_CH27 47
#define IMX8ULP_CLK_DMA2_CH28 48
#define IMX8ULP_CLK_DMA2_CH29 49
#define IMX8ULP_CLK_DMA2_CH30 50
#define IMX8ULP_CLK_DMA2_CH31 51
#define IMX8ULP_CLK_MU2_B 52
#define IMX8ULP_CLK_MU3_B 53
#define IMX8ULP_CLK_AVD_SIM 54
#define IMX8ULP_CLK_DSI_TX_ESC 55
#define IMX8ULP_CLK_PCC5_END 56
#endif

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@ -0,0 +1,59 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright 2021 NXP
*/
#ifndef DT_BINDING_PCC_RESET_IMX8ULP_H
#define DT_BINDING_PCC_RESET_IMX8ULP_H
/* PCC3 */
#define PCC3_WDOG3_SWRST 0
#define PCC3_WDOG4_SWRST 1
#define PCC3_LPIT1_SWRST 2
#define PCC3_TPM4_SWRST 3
#define PCC3_TPM5_SWRST 4
#define PCC3_FLEXIO1_SWRST 5
#define PCC3_I3C2_SWRST 6
#define PCC3_LPI2C4_SWRST 7
#define PCC3_LPI2C5_SWRST 8
#define PCC3_LPUART4_SWRST 9
#define PCC3_LPUART5_SWRST 10
#define PCC3_LPSPI4_SWRST 11
#define PCC3_LPSPI5_SWRST 12
/* PCC4 */
#define PCC4_FLEXSPI2_SWRST 0
#define PCC4_TPM6_SWRST 1
#define PCC4_TPM7_SWRST 2
#define PCC4_LPI2C6_SWRST 3
#define PCC4_LPI2C7_SWRST 4
#define PCC4_LPUART6_SWRST 5
#define PCC4_LPUART7_SWRST 6
#define PCC4_SAI4_SWRST 7
#define PCC4_SAI5_SWRST 8
#define PCC4_USDHC0_SWRST 9
#define PCC4_USDHC1_SWRST 10
#define PCC4_USDHC2_SWRST 11
#define PCC4_USB0_SWRST 12
#define PCC4_USB0_PHY_SWRST 13
#define PCC4_USB1_SWRST 14
#define PCC4_USB1_PHY_SWRST 15
#define PCC4_ENET_SWRST 16
/* PCC5 */
#define PCC5_TPM8_SWRST 0
#define PCC5_SAI6_SWRST 1
#define PCC5_SAI7_SWRST 2
#define PCC5_SPDIF_SWRST 3
#define PCC5_ISI_SWRST 4
#define PCC5_CSI_REGS_SWRST 5
#define PCC5_CSI_SWRST 6
#define PCC5_DSI_SWRST 7
#define PCC5_WDOG5_SWRST 8
#define PCC5_EPDC_SWRST 9
#define PCC5_PXP_SWRST 10
#define PCC5_GPU2D_SWRST 11
#define PCC5_GPU3D_SWRST 12
#define PCC5_DC_NANO_SWRST 13
#endif /*DT_BINDING_RESET_IMX8ULP_H */

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@ -0,0 +1,51 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _DT_BINDINGS_STE_PRCC_RESET
#define _DT_BINDINGS_STE_PRCC_RESET
#define DB8500_PRCC_1 1
#define DB8500_PRCC_2 2
#define DB8500_PRCC_3 3
#define DB8500_PRCC_6 6
/* Reset lines on PRCC 1 */
#define DB8500_PRCC_1_RESET_UART0 0
#define DB8500_PRCC_1_RESET_UART1 1
#define DB8500_PRCC_1_RESET_I2C1 2
#define DB8500_PRCC_1_RESET_MSP0 3
#define DB8500_PRCC_1_RESET_MSP1 4
#define DB8500_PRCC_1_RESET_SDI0 5
#define DB8500_PRCC_1_RESET_I2C2 6
#define DB8500_PRCC_1_RESET_SPI3 7
#define DB8500_PRCC_1_RESET_SLIMBUS0 8
#define DB8500_PRCC_1_RESET_I2C4 9
#define DB8500_PRCC_1_RESET_MSP3 10
#define DB8500_PRCC_1_RESET_PER_MSP3 11
#define DB8500_PRCC_1_RESET_PER_MSP1 12
#define DB8500_PRCC_1_RESET_PER_MSP0 13
#define DB8500_PRCC_1_RESET_PER_SLIMBUS 14
/* Reset lines on PRCC 2 */
#define DB8500_PRCC_2_RESET_I2C3 0
#define DB8500_PRCC_2_RESET_PWL 1
#define DB8500_PRCC_2_RESET_SDI4 2
#define DB8500_PRCC_2_RESET_MSP2 3
#define DB8500_PRCC_2_RESET_SDI1 4
#define DB8500_PRCC_2_RESET_SDI3 5
#define DB8500_PRCC_2_RESET_HSIRX 6
#define DB8500_PRCC_2_RESET_HSITX 7
#define DB8500_PRCC_1_RESET_PER_MSP2 8
/* Reset lines on PRCC 3 */
#define DB8500_PRCC_3_RESET_SSP0 1
#define DB8500_PRCC_3_RESET_SSP1 2
#define DB8500_PRCC_3_RESET_I2C0 3
#define DB8500_PRCC_3_RESET_SDI2 4
#define DB8500_PRCC_3_RESET_SKE 5
#define DB8500_PRCC_3_RESET_UART2 6
#define DB8500_PRCC_3_RESET_SDI5 7
/* Reset lines on PRCC 6 */
#define DB8500_PRCC_3_RESET_RNG 0
#endif