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![Andrew Bresticker](/assets/img/avatar_default.png)
Move the UTMI PLL initialization code form clk-tegra<chip>.c files into clk-pll.c. UTMI PLL was being configured and set in HW control right after registration. However, when the clock init_table is processed and child clks of PLLU are enabled, it will call in and enable PLLU as well, and initiate SW enabling sequence even though PLLU is already in HW control. This leads to getting UTMIPLL stuck with a SEQ_BUSY status. Doing the initialization once during pllu_enable means we configure it properly into HW control. A side effect of the commonization/localization of the UTMI PLL init code, is that it corrects some errors that were present for earlier generations. For instance, in clk-tegra124.c, it used to have: #define UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(x) (((x) & 0x1f) << 6) when the correct shift to use is present in the new version: #define UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(x) (((x) & 0x1f) << 27) which matches the Tegra124 TRM register definition. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> [rklein: Merged in some later fixes for potential deadlocks] Signed-off-by: Rhyland Klein <rklein@nvidia.com> [treding: coding style bike-shedding, remove unused variable] Signed-off-by: Thierry Reding <treding@nvidia.com>
813 lines
26 KiB
C
813 lines
26 KiB
C
/*
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* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __TEGRA_CLK_H
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#define __TEGRA_CLK_H
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#include <linux/clk-provider.h>
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#include <linux/clkdev.h>
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/**
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* struct tegra_clk_sync_source - external clock source from codec
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*
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* @hw: handle between common and hardware-specific interfaces
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* @rate: input frequency from source
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* @max_rate: max rate allowed
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*/
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struct tegra_clk_sync_source {
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struct clk_hw hw;
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unsigned long rate;
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unsigned long max_rate;
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};
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#define to_clk_sync_source(_hw) \
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container_of(_hw, struct tegra_clk_sync_source, hw)
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extern const struct clk_ops tegra_clk_sync_source_ops;
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extern int *periph_clk_enb_refcnt;
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struct clk *tegra_clk_register_sync_source(const char *name,
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unsigned long fixed_rate, unsigned long max_rate);
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/**
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* struct tegra_clk_frac_div - fractional divider clock
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*
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* @hw: handle between common and hardware-specific interfaces
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* @reg: register containing divider
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* @flags: hardware-specific flags
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* @shift: shift to the divider bit field
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* @width: width of the divider bit field
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* @frac_width: width of the fractional bit field
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* @lock: register lock
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*
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* Flags:
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* TEGRA_DIVIDER_ROUND_UP - This flags indicates to round up the divider value.
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* TEGRA_DIVIDER_FIXED - Fixed rate PLL dividers has addition override bit, this
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* flag indicates that this divider is for fixed rate PLL.
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* TEGRA_DIVIDER_INT - Some modules can not cope with the duty cycle when
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* fraction bit is set. This flags indicates to calculate divider for which
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* fracton bit will be zero.
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* TEGRA_DIVIDER_UART - UART module divider has additional enable bit which is
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* set when divider value is not 0. This flags indicates that the divider
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* is for UART module.
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*/
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struct tegra_clk_frac_div {
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struct clk_hw hw;
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void __iomem *reg;
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u8 flags;
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u8 shift;
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u8 width;
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u8 frac_width;
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spinlock_t *lock;
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};
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#define to_clk_frac_div(_hw) container_of(_hw, struct tegra_clk_frac_div, hw)
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#define TEGRA_DIVIDER_ROUND_UP BIT(0)
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#define TEGRA_DIVIDER_FIXED BIT(1)
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#define TEGRA_DIVIDER_INT BIT(2)
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#define TEGRA_DIVIDER_UART BIT(3)
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extern const struct clk_ops tegra_clk_frac_div_ops;
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struct clk *tegra_clk_register_divider(const char *name,
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const char *parent_name, void __iomem *reg,
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unsigned long flags, u8 clk_divider_flags, u8 shift, u8 width,
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u8 frac_width, spinlock_t *lock);
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struct clk *tegra_clk_register_mc(const char *name, const char *parent_name,
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void __iomem *reg, spinlock_t *lock);
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/*
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* Tegra PLL:
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*
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* In general, there are 3 requirements for each PLL
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* that SW needs to be comply with.
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* (1) Input frequency range (REF).
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* (2) Comparison frequency range (CF). CF = REF/DIVM.
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* (3) VCO frequency range (VCO). VCO = CF * DIVN.
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*
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* The final PLL output frequency (FO) = VCO >> DIVP.
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*/
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/**
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* struct tegra_clk_pll_freq_table - PLL frequecy table
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*
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* @input_rate: input rate from source
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* @output_rate: output rate from PLL for the input rate
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* @n: feedback divider
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* @m: input divider
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* @p: post divider
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* @cpcon: charge pump current
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* @sdm_data: fraction divider setting (0 = disabled)
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*/
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struct tegra_clk_pll_freq_table {
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unsigned long input_rate;
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unsigned long output_rate;
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u32 n;
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u16 m;
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u8 p;
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u8 cpcon;
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u16 sdm_data;
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};
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/**
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* struct pdiv_map - map post divider to hw value
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*
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* @pdiv: post divider
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* @hw_val: value to be written to the PLL hw
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*/
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struct pdiv_map {
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u8 pdiv;
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u8 hw_val;
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};
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/**
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* struct div_nmp - offset and width of m,n and p fields
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*
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* @divn_shift: shift to the feedback divider bit field
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* @divn_width: width of the feedback divider bit field
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* @divm_shift: shift to the input divider bit field
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* @divm_width: width of the input divider bit field
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* @divp_shift: shift to the post divider bit field
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* @divp_width: width of the post divider bit field
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* @override_divn_shift: shift to the feedback divider bitfield in override reg
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* @override_divm_shift: shift to the input divider bitfield in override reg
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* @override_divp_shift: shift to the post divider bitfield in override reg
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*/
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struct div_nmp {
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u8 divn_shift;
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u8 divn_width;
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u8 divm_shift;
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u8 divm_width;
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u8 divp_shift;
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u8 divp_width;
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u8 override_divn_shift;
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u8 override_divm_shift;
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u8 override_divp_shift;
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};
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#define MAX_PLL_MISC_REG_COUNT 6
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struct tegra_clk_pll;
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/**
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* struct tegra_clk_pll_params - PLL parameters
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*
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* @input_min: Minimum input frequency
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* @input_max: Maximum input frequency
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* @cf_min: Minimum comparison frequency
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* @cf_max: Maximum comparison frequency
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* @vco_min: Minimum VCO frequency
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* @vco_max: Maximum VCO frequency
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* @base_reg: PLL base reg offset
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* @misc_reg: PLL misc reg offset
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* @lock_reg: PLL lock reg offset
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* @lock_mask: Bitmask for PLL lock status
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* @lock_enable_bit_idx: Bit index to enable PLL lock
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* @iddq_reg: PLL IDDQ register offset
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* @iddq_bit_idx: Bit index to enable PLL IDDQ
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* @reset_reg: Register offset of where RESET bit is
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* @reset_bit_idx: Shift of reset bit in reset_reg
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* @sdm_din_reg: Register offset where SDM settings are
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* @sdm_din_mask: Mask of SDM divider bits
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* @sdm_ctrl_reg: Register offset where SDM enable is
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* @sdm_ctrl_en_mask: Mask of SDM enable bit
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* @ssc_ctrl_reg: Register offset where SSC settings are
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* @ssc_ctrl_en_mask: Mask of SSC enable bit
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* @aux_reg: AUX register offset
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* @dyn_ramp_reg: Dynamic ramp control register offset
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* @ext_misc_reg: Miscellaneous control register offsets
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* @pmc_divnm_reg: n, m divider PMC override register offset (PLLM)
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* @pmc_divp_reg: p divider PMC override register offset (PLLM)
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* @flags: PLL flags
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* @stepa_shift: Dynamic ramp step A field shift
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* @stepb_shift: Dynamic ramp step B field shift
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* @lock_delay: Delay in us if PLL lock is not used
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* @max_p: maximum value for the p divider
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* @defaults_set: Boolean signaling all reg defaults for PLL set.
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* @pdiv_tohw: mapping of p divider to register values
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* @div_nmp: offsets and widths on n, m and p fields
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* @freq_table: array of frequencies supported by PLL
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* @fixed_rate: PLL rate if it is fixed
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* @mdiv_default: Default value for fixed mdiv for this PLL
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* @round_p_to_pdiv: Callback used to round p to the closed pdiv
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* @set_gain: Callback to adjust N div for SDM enabled
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* PLL's based on fractional divider value.
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* @calc_rate: Callback used to change how out of table
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* rates (dividers and multipler) are calculated.
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* @adjust_vco: Callback to adjust the programming range of the
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* divider range (if SDM is present)
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* @set_defaults: Callback which will try to initialize PLL
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* registers to sane default values. This is first
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* tried during PLL registration, but if the PLL
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* is already enabled, it will be done the first
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* time the rate is changed while the PLL is
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* disabled.
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* @dyn_ramp: Callback which can be used to define a custom
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* dynamic ramp function for a given PLL.
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*
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* Flags:
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* TEGRA_PLL_USE_LOCK - This flag indicated to use lock bits for
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* PLL locking. If not set it will use lock_delay value to wait.
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* TEGRA_PLL_HAS_CPCON - This flag indicates that CPCON value needs
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* to be programmed to change output frequency of the PLL.
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* TEGRA_PLL_SET_LFCON - This flag indicates that LFCON value needs
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* to be programmed to change output frequency of the PLL.
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* TEGRA_PLL_SET_DCCON - This flag indicates that DCCON value needs
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* to be programmed to change output frequency of the PLL.
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* TEGRA_PLLU - PLLU has inverted post divider. This flags indicated
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* that it is PLLU and invert post divider value.
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* TEGRA_PLLM - PLLM has additional override settings in PMC. This
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* flag indicates that it is PLLM and use override settings.
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* TEGRA_PLL_FIXED - We are not supposed to change output frequency
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* of some plls.
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* TEGRA_PLLE_CONFIGURE - Configure PLLE when enabling.
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* TEGRA_PLL_LOCK_MISC - Lock bit is in the misc register instead of the
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* base register.
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* TEGRA_PLL_BYPASS - PLL has bypass bit
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* TEGRA_PLL_HAS_LOCK_ENABLE - PLL has bit to enable lock monitoring
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* TEGRA_MDIV_NEW - Switch to new method for calculating fixed mdiv
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* it may be more accurate (especially if SDM present)
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* TEGRA_PLLMB - PLLMB has should be treated similar to PLLM. This
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* flag indicated that it is PLLMB.
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* TEGRA_PLL_VCO_OUT - Used to indicate that the PLL has a VCO output
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*/
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struct tegra_clk_pll_params {
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unsigned long input_min;
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unsigned long input_max;
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unsigned long cf_min;
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unsigned long cf_max;
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unsigned long vco_min;
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unsigned long vco_max;
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u32 base_reg;
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u32 misc_reg;
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u32 lock_reg;
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u32 lock_mask;
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u32 lock_enable_bit_idx;
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u32 iddq_reg;
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u32 iddq_bit_idx;
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u32 reset_reg;
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u32 reset_bit_idx;
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u32 sdm_din_reg;
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u32 sdm_din_mask;
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u32 sdm_ctrl_reg;
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u32 sdm_ctrl_en_mask;
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u32 ssc_ctrl_reg;
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u32 ssc_ctrl_en_mask;
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u32 aux_reg;
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u32 dyn_ramp_reg;
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u32 ext_misc_reg[MAX_PLL_MISC_REG_COUNT];
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u32 pmc_divnm_reg;
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u32 pmc_divp_reg;
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u32 flags;
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int stepa_shift;
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int stepb_shift;
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int lock_delay;
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int max_p;
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bool defaults_set;
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const struct pdiv_map *pdiv_tohw;
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struct div_nmp *div_nmp;
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struct tegra_clk_pll_freq_table *freq_table;
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unsigned long fixed_rate;
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u16 mdiv_default;
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u32 (*round_p_to_pdiv)(u32 p, u32 *pdiv);
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void (*set_gain)(struct tegra_clk_pll_freq_table *cfg);
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int (*calc_rate)(struct clk_hw *hw,
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struct tegra_clk_pll_freq_table *cfg,
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unsigned long rate, unsigned long parent_rate);
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unsigned long (*adjust_vco)(struct tegra_clk_pll_params *pll_params,
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unsigned long parent_rate);
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void (*set_defaults)(struct tegra_clk_pll *pll);
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int (*dyn_ramp)(struct tegra_clk_pll *pll,
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struct tegra_clk_pll_freq_table *cfg);
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};
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#define TEGRA_PLL_USE_LOCK BIT(0)
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#define TEGRA_PLL_HAS_CPCON BIT(1)
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#define TEGRA_PLL_SET_LFCON BIT(2)
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#define TEGRA_PLL_SET_DCCON BIT(3)
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#define TEGRA_PLLU BIT(4)
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#define TEGRA_PLLM BIT(5)
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#define TEGRA_PLL_FIXED BIT(6)
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#define TEGRA_PLLE_CONFIGURE BIT(7)
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#define TEGRA_PLL_LOCK_MISC BIT(8)
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#define TEGRA_PLL_BYPASS BIT(9)
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#define TEGRA_PLL_HAS_LOCK_ENABLE BIT(10)
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#define TEGRA_MDIV_NEW BIT(11)
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#define TEGRA_PLLMB BIT(12)
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#define TEGRA_PLL_VCO_OUT BIT(13)
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/**
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* struct tegra_clk_pll - Tegra PLL clock
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*
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* @hw: handle between common and hardware-specifix interfaces
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* @clk_base: address of CAR controller
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* @pmc: address of PMC, required to read override bits
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* @lock: register lock
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* @params: PLL parameters
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*/
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struct tegra_clk_pll {
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struct clk_hw hw;
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void __iomem *clk_base;
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void __iomem *pmc;
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spinlock_t *lock;
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struct tegra_clk_pll_params *params;
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};
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#define to_clk_pll(_hw) container_of(_hw, struct tegra_clk_pll, hw)
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/**
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* struct tegra_audio_clk_info - Tegra Audio Clk Information
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*
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* @name: name for the audio pll
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* @pll_params: pll_params for audio pll
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* @clk_id: clk_ids for the audio pll
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* @parent: name of the parent of the audio pll
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*/
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struct tegra_audio_clk_info {
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char *name;
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struct tegra_clk_pll_params *pll_params;
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int clk_id;
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char *parent;
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};
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extern const struct clk_ops tegra_clk_pll_ops;
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extern const struct clk_ops tegra_clk_plle_ops;
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struct clk *tegra_clk_register_pll(const char *name, const char *parent_name,
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void __iomem *clk_base, void __iomem *pmc,
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unsigned long flags, struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_plle(const char *name, const char *parent_name,
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void __iomem *clk_base, void __iomem *pmc,
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unsigned long flags, struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_pllxc(const char *name, const char *parent_name,
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void __iomem *clk_base, void __iomem *pmc,
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unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_pllxc_tegra210(const char *name,
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const char *parent_name, void __iomem *clk_base,
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void __iomem *pmc, unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_pllm(const char *name, const char *parent_name,
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void __iomem *clk_base, void __iomem *pmc,
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unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_pllc(const char *name, const char *parent_name,
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void __iomem *clk_base, void __iomem *pmc,
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unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_pllre(const char *name, const char *parent_name,
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void __iomem *clk_base, void __iomem *pmc,
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unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock, unsigned long parent_rate);
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struct clk *tegra_clk_register_pllre_tegra210(const char *name,
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const char *parent_name, void __iomem *clk_base,
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void __iomem *pmc, unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock, unsigned long parent_rate);
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struct clk *tegra_clk_register_plle_tegra114(const char *name,
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const char *parent_name,
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void __iomem *clk_base, unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_plle_tegra210(const char *name,
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const char *parent_name,
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void __iomem *clk_base, unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_pllc_tegra210(const char *name,
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const char *parent_name, void __iomem *clk_base,
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void __iomem *pmc, unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_pllss_tegra210(const char *name,
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const char *parent_name, void __iomem *clk_base,
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unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_pllss(const char *name, const char *parent_name,
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void __iomem *clk_base, unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
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spinlock_t *lock);
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struct clk *tegra_clk_register_pllmb(const char *name, const char *parent_name,
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void __iomem *clk_base, void __iomem *pmc,
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unsigned long flags,
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struct tegra_clk_pll_params *pll_params,
|
|
spinlock_t *lock);
|
|
|
|
struct clk *tegra_clk_register_pllu(const char *name, const char *parent_name,
|
|
void __iomem *clk_base, unsigned long flags,
|
|
struct tegra_clk_pll_params *pll_params,
|
|
spinlock_t *lock);
|
|
|
|
struct clk *tegra_clk_register_pllu_tegra114(const char *name,
|
|
const char *parent_name,
|
|
void __iomem *clk_base, unsigned long flags,
|
|
struct tegra_clk_pll_params *pll_params,
|
|
spinlock_t *lock);
|
|
|
|
struct clk *tegra_clk_register_pllu_tegra210(const char *name,
|
|
const char *parent_name,
|
|
void __iomem *clk_base, unsigned long flags,
|
|
struct tegra_clk_pll_params *pll_params,
|
|
spinlock_t *lock);
|
|
|
|
/**
|
|
* struct tegra_clk_pll_out - PLL divider down clock
|
|
*
|
|
* @hw: handle between common and hardware-specific interfaces
|
|
* @reg: register containing the PLL divider
|
|
* @enb_bit_idx: bit to enable/disable PLL divider
|
|
* @rst_bit_idx: bit to reset PLL divider
|
|
* @lock: register lock
|
|
* @flags: hardware-specific flags
|
|
*/
|
|
struct tegra_clk_pll_out {
|
|
struct clk_hw hw;
|
|
void __iomem *reg;
|
|
u8 enb_bit_idx;
|
|
u8 rst_bit_idx;
|
|
spinlock_t *lock;
|
|
u8 flags;
|
|
};
|
|
|
|
#define to_clk_pll_out(_hw) container_of(_hw, struct tegra_clk_pll_out, hw)
|
|
|
|
extern const struct clk_ops tegra_clk_pll_out_ops;
|
|
struct clk *tegra_clk_register_pll_out(const char *name,
|
|
const char *parent_name, void __iomem *reg, u8 enb_bit_idx,
|
|
u8 rst_bit_idx, unsigned long flags, u8 pll_div_flags,
|
|
spinlock_t *lock);
|
|
|
|
/**
|
|
* struct tegra_clk_periph_regs - Registers controlling peripheral clock
|
|
*
|
|
* @enb_reg: read the enable status
|
|
* @enb_set_reg: write 1 to enable clock
|
|
* @enb_clr_reg: write 1 to disable clock
|
|
* @rst_reg: read the reset status
|
|
* @rst_set_reg: write 1 to assert the reset of peripheral
|
|
* @rst_clr_reg: write 1 to deassert the reset of peripheral
|
|
*/
|
|
struct tegra_clk_periph_regs {
|
|
u32 enb_reg;
|
|
u32 enb_set_reg;
|
|
u32 enb_clr_reg;
|
|
u32 rst_reg;
|
|
u32 rst_set_reg;
|
|
u32 rst_clr_reg;
|
|
};
|
|
|
|
/**
|
|
* struct tegra_clk_periph_gate - peripheral gate clock
|
|
*
|
|
* @magic: magic number to validate type
|
|
* @hw: handle between common and hardware-specific interfaces
|
|
* @clk_base: address of CAR controller
|
|
* @regs: Registers to control the peripheral
|
|
* @flags: hardware-specific flags
|
|
* @clk_num: Clock number
|
|
* @enable_refcnt: array to maintain reference count of the clock
|
|
*
|
|
* Flags:
|
|
* TEGRA_PERIPH_NO_RESET - This flag indicates that reset is not allowed
|
|
* for this module.
|
|
* TEGRA_PERIPH_MANUAL_RESET - This flag indicates not to reset module
|
|
* after clock enable and driver for the module is responsible for
|
|
* doing reset.
|
|
* TEGRA_PERIPH_ON_APB - If peripheral is in the APB bus then read the
|
|
* bus to flush the write operation in apb bus. This flag indicates
|
|
* that this peripheral is in apb bus.
|
|
* TEGRA_PERIPH_WAR_1005168 - Apply workaround for Tegra114 MSENC bug
|
|
*/
|
|
struct tegra_clk_periph_gate {
|
|
u32 magic;
|
|
struct clk_hw hw;
|
|
void __iomem *clk_base;
|
|
u8 flags;
|
|
int clk_num;
|
|
int *enable_refcnt;
|
|
const struct tegra_clk_periph_regs *regs;
|
|
};
|
|
|
|
#define to_clk_periph_gate(_hw) \
|
|
container_of(_hw, struct tegra_clk_periph_gate, hw)
|
|
|
|
#define TEGRA_CLK_PERIPH_GATE_MAGIC 0x17760309
|
|
|
|
#define TEGRA_PERIPH_NO_RESET BIT(0)
|
|
#define TEGRA_PERIPH_MANUAL_RESET BIT(1)
|
|
#define TEGRA_PERIPH_ON_APB BIT(2)
|
|
#define TEGRA_PERIPH_WAR_1005168 BIT(3)
|
|
#define TEGRA_PERIPH_NO_DIV BIT(4)
|
|
#define TEGRA_PERIPH_NO_GATE BIT(5)
|
|
|
|
extern const struct clk_ops tegra_clk_periph_gate_ops;
|
|
struct clk *tegra_clk_register_periph_gate(const char *name,
|
|
const char *parent_name, u8 gate_flags, void __iomem *clk_base,
|
|
unsigned long flags, int clk_num, int *enable_refcnt);
|
|
|
|
struct tegra_clk_periph_fixed {
|
|
struct clk_hw hw;
|
|
void __iomem *base;
|
|
const struct tegra_clk_periph_regs *regs;
|
|
unsigned int mul;
|
|
unsigned int div;
|
|
unsigned int num;
|
|
};
|
|
|
|
struct clk *tegra_clk_register_periph_fixed(const char *name,
|
|
const char *parent,
|
|
unsigned long flags,
|
|
void __iomem *base,
|
|
unsigned int mul,
|
|
unsigned int div,
|
|
unsigned int num);
|
|
|
|
/**
|
|
* struct clk-periph - peripheral clock
|
|
*
|
|
* @magic: magic number to validate type
|
|
* @hw: handle between common and hardware-specific interfaces
|
|
* @mux: mux clock
|
|
* @divider: divider clock
|
|
* @gate: gate clock
|
|
* @mux_ops: mux clock ops
|
|
* @div_ops: divider clock ops
|
|
* @gate_ops: gate clock ops
|
|
*/
|
|
struct tegra_clk_periph {
|
|
u32 magic;
|
|
struct clk_hw hw;
|
|
struct clk_mux mux;
|
|
struct tegra_clk_frac_div divider;
|
|
struct tegra_clk_periph_gate gate;
|
|
|
|
const struct clk_ops *mux_ops;
|
|
const struct clk_ops *div_ops;
|
|
const struct clk_ops *gate_ops;
|
|
};
|
|
|
|
#define to_clk_periph(_hw) container_of(_hw, struct tegra_clk_periph, hw)
|
|
|
|
#define TEGRA_CLK_PERIPH_MAGIC 0x18221223
|
|
|
|
extern const struct clk_ops tegra_clk_periph_ops;
|
|
struct clk *tegra_clk_register_periph(const char *name,
|
|
const char **parent_names, int num_parents,
|
|
struct tegra_clk_periph *periph, void __iomem *clk_base,
|
|
u32 offset, unsigned long flags);
|
|
struct clk *tegra_clk_register_periph_nodiv(const char *name,
|
|
const char **parent_names, int num_parents,
|
|
struct tegra_clk_periph *periph, void __iomem *clk_base,
|
|
u32 offset);
|
|
|
|
#define TEGRA_CLK_PERIPH(_mux_shift, _mux_mask, _mux_flags, \
|
|
_div_shift, _div_width, _div_frac_width, \
|
|
_div_flags, _clk_num,\
|
|
_gate_flags, _table, _lock) \
|
|
{ \
|
|
.mux = { \
|
|
.flags = _mux_flags, \
|
|
.shift = _mux_shift, \
|
|
.mask = _mux_mask, \
|
|
.table = _table, \
|
|
.lock = _lock, \
|
|
}, \
|
|
.divider = { \
|
|
.flags = _div_flags, \
|
|
.shift = _div_shift, \
|
|
.width = _div_width, \
|
|
.frac_width = _div_frac_width, \
|
|
.lock = _lock, \
|
|
}, \
|
|
.gate = { \
|
|
.flags = _gate_flags, \
|
|
.clk_num = _clk_num, \
|
|
}, \
|
|
.mux_ops = &clk_mux_ops, \
|
|
.div_ops = &tegra_clk_frac_div_ops, \
|
|
.gate_ops = &tegra_clk_periph_gate_ops, \
|
|
}
|
|
|
|
struct tegra_periph_init_data {
|
|
const char *name;
|
|
int clk_id;
|
|
union {
|
|
const char **parent_names;
|
|
const char *parent_name;
|
|
} p;
|
|
int num_parents;
|
|
struct tegra_clk_periph periph;
|
|
u32 offset;
|
|
const char *con_id;
|
|
const char *dev_id;
|
|
unsigned long flags;
|
|
};
|
|
|
|
#define TEGRA_INIT_DATA_TABLE(_name, _con_id, _dev_id, _parent_names, _offset,\
|
|
_mux_shift, _mux_mask, _mux_flags, _div_shift, \
|
|
_div_width, _div_frac_width, _div_flags, \
|
|
_clk_num, _gate_flags, _clk_id, _table, \
|
|
_flags, _lock) \
|
|
{ \
|
|
.name = _name, \
|
|
.clk_id = _clk_id, \
|
|
.p.parent_names = _parent_names, \
|
|
.num_parents = ARRAY_SIZE(_parent_names), \
|
|
.periph = TEGRA_CLK_PERIPH(_mux_shift, _mux_mask, \
|
|
_mux_flags, _div_shift, \
|
|
_div_width, _div_frac_width, \
|
|
_div_flags, _clk_num, \
|
|
_gate_flags, _table, _lock), \
|
|
.offset = _offset, \
|
|
.con_id = _con_id, \
|
|
.dev_id = _dev_id, \
|
|
.flags = _flags \
|
|
}
|
|
|
|
#define TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parent_names, _offset,\
|
|
_mux_shift, _mux_width, _mux_flags, _div_shift, \
|
|
_div_width, _div_frac_width, _div_flags, \
|
|
_clk_num, _gate_flags, _clk_id) \
|
|
TEGRA_INIT_DATA_TABLE(_name, _con_id, _dev_id, _parent_names, _offset,\
|
|
_mux_shift, BIT(_mux_width) - 1, _mux_flags, \
|
|
_div_shift, _div_width, _div_frac_width, _div_flags, \
|
|
_clk_num, _gate_flags, _clk_id,\
|
|
NULL, 0, NULL)
|
|
|
|
/**
|
|
* struct clk_super_mux - super clock
|
|
*
|
|
* @hw: handle between common and hardware-specific interfaces
|
|
* @reg: register controlling multiplexer
|
|
* @width: width of the multiplexer bit field
|
|
* @flags: hardware-specific flags
|
|
* @div2_index: bit controlling divide-by-2
|
|
* @pllx_index: PLLX index in the parent list
|
|
* @lock: register lock
|
|
*
|
|
* Flags:
|
|
* TEGRA_DIVIDER_2 - LP cluster has additional divider. This flag indicates
|
|
* that this is LP cluster clock.
|
|
*/
|
|
struct tegra_clk_super_mux {
|
|
struct clk_hw hw;
|
|
void __iomem *reg;
|
|
u8 width;
|
|
u8 flags;
|
|
u8 div2_index;
|
|
u8 pllx_index;
|
|
spinlock_t *lock;
|
|
};
|
|
|
|
#define to_clk_super_mux(_hw) container_of(_hw, struct tegra_clk_super_mux, hw)
|
|
|
|
#define TEGRA_DIVIDER_2 BIT(0)
|
|
|
|
extern const struct clk_ops tegra_clk_super_ops;
|
|
struct clk *tegra_clk_register_super_mux(const char *name,
|
|
const char **parent_names, u8 num_parents,
|
|
unsigned long flags, void __iomem *reg, u8 clk_super_flags,
|
|
u8 width, u8 pllx_index, u8 div2_index, spinlock_t *lock);
|
|
|
|
/**
|
|
* struct clk_init_table - clock initialization table
|
|
* @clk_id: clock id as mentioned in device tree bindings
|
|
* @parent_id: parent clock id as mentioned in device tree bindings
|
|
* @rate: rate to set
|
|
* @state: enable/disable
|
|
*/
|
|
struct tegra_clk_init_table {
|
|
unsigned int clk_id;
|
|
unsigned int parent_id;
|
|
unsigned long rate;
|
|
int state;
|
|
};
|
|
|
|
/**
|
|
* struct clk_duplicate - duplicate clocks
|
|
* @clk_id: clock id as mentioned in device tree bindings
|
|
* @lookup: duplicate lookup entry for the clock
|
|
*/
|
|
struct tegra_clk_duplicate {
|
|
int clk_id;
|
|
struct clk_lookup lookup;
|
|
};
|
|
|
|
#define TEGRA_CLK_DUPLICATE(_clk_id, _dev, _con) \
|
|
{ \
|
|
.clk_id = _clk_id, \
|
|
.lookup = { \
|
|
.dev_id = _dev, \
|
|
.con_id = _con, \
|
|
}, \
|
|
}
|
|
|
|
struct tegra_clk {
|
|
int dt_id;
|
|
bool present;
|
|
};
|
|
|
|
struct tegra_devclk {
|
|
int dt_id;
|
|
char *dev_id;
|
|
char *con_id;
|
|
};
|
|
|
|
void tegra_init_special_resets(unsigned int num, int (*assert)(unsigned long),
|
|
int (*deassert)(unsigned long));
|
|
|
|
void tegra_init_from_table(struct tegra_clk_init_table *tbl,
|
|
struct clk *clks[], int clk_max);
|
|
|
|
void tegra_init_dup_clks(struct tegra_clk_duplicate *dup_list,
|
|
struct clk *clks[], int clk_max);
|
|
|
|
const struct tegra_clk_periph_regs *get_reg_bank(int clkid);
|
|
struct clk **tegra_clk_init(void __iomem *clk_base, int num, int periph_banks);
|
|
|
|
struct clk **tegra_lookup_dt_id(int clk_id, struct tegra_clk *tegra_clk);
|
|
|
|
void tegra_add_of_provider(struct device_node *np);
|
|
void tegra_register_devclks(struct tegra_devclk *dev_clks, int num);
|
|
|
|
void tegra_audio_clk_init(void __iomem *clk_base,
|
|
void __iomem *pmc_base, struct tegra_clk *tegra_clks,
|
|
struct tegra_audio_clk_info *audio_info,
|
|
unsigned int num_plls);
|
|
|
|
void tegra_periph_clk_init(void __iomem *clk_base, void __iomem *pmc_base,
|
|
struct tegra_clk *tegra_clks,
|
|
struct tegra_clk_pll_params *pll_params);
|
|
|
|
void tegra_pmc_clk_init(void __iomem *pmc_base, struct tegra_clk *tegra_clks);
|
|
void tegra_fixed_clk_init(struct tegra_clk *tegra_clks);
|
|
int tegra_osc_clk_init(void __iomem *clk_base, struct tegra_clk *clks,
|
|
unsigned long *input_freqs, unsigned int num,
|
|
unsigned int clk_m_div, unsigned long *osc_freq,
|
|
unsigned long *pll_ref_freq);
|
|
void tegra_super_clk_gen4_init(void __iomem *clk_base,
|
|
void __iomem *pmc_base, struct tegra_clk *tegra_clks,
|
|
struct tegra_clk_pll_params *pll_params);
|
|
void tegra_super_clk_gen5_init(void __iomem *clk_base,
|
|
void __iomem *pmc_base, struct tegra_clk *tegra_clks,
|
|
struct tegra_clk_pll_params *pll_params);
|
|
|
|
#ifdef CONFIG_TEGRA_CLK_EMC
|
|
struct clk *tegra_clk_register_emc(void __iomem *base, struct device_node *np,
|
|
spinlock_t *lock);
|
|
#else
|
|
static inline struct clk *tegra_clk_register_emc(void __iomem *base,
|
|
struct device_node *np,
|
|
spinlock_t *lock)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
void tegra114_clock_tune_cpu_trimmers_high(void);
|
|
void tegra114_clock_tune_cpu_trimmers_low(void);
|
|
void tegra114_clock_tune_cpu_trimmers_init(void);
|
|
void tegra114_clock_assert_dfll_dvco_reset(void);
|
|
void tegra114_clock_deassert_dfll_dvco_reset(void);
|
|
|
|
typedef void (*tegra_clk_apply_init_table_func)(void);
|
|
extern tegra_clk_apply_init_table_func tegra_clk_apply_init_table;
|
|
int tegra_pll_wait_for_lock(struct tegra_clk_pll *pll);
|
|
u16 tegra_pll_get_fixed_mdiv(struct clk_hw *hw, unsigned long input_rate);
|
|
int tegra_pll_p_div_to_hw(struct tegra_clk_pll *pll, u8 p_div);
|
|
|
|
#endif /* TEGRA_CLK_H */
|