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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
![Linus Torvalds](/assets/img/avatar_default.png)
general cleanups, but nothing too major. The majority of the diff goes to two SoCs, Actions Semi and Qualcomm. A brand new driver is introduced for Actions Semi so it takes up some lines to add all the different types, and the Qualcomm diff is there because we add support for two SoCs and it's quite a bit of data. Otherwise the big driver updates are on TI Davinci and Amlogic platforms. And then the long tail of driver updates for various fixes and stuff follows after that. Core: - debugfs cleanups removing error checking and an unused provider API - Removal of a clk init typedef that isn't used - Usage of match_string() to simplify parent string name matching - OF clk helpers moved to their own file (linux/of_clk.h) - Make clk warnings more readable across kernel versions New Drivers: - Qualcomm SDM845 GCC and Video clk controllers - Qualcomm MSM8998 GCC - Actions Semi S900 SoC support - Nuvoton npcm750 microcontroller clks - Amlogic axg AO clock controller Removed Drivers: - Deprecated Rockchip clk-gate driver Updates: - debugfs functions stopped checking return values - Support for the MSIOF module clocks on Rensas R-Car M3-N - Support for the new Rensas RZ/G1C and R-Car E3 SoCs - Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs - Berlin and Amlogic SPDX tagging - Usage of of_clk_get_parent_count() in more places - Proper implementation of the CDEV1/2 clocks on Tegra20 - Allwinner H6 PRCM clock support and R40 EMAC support - Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet - Round closest support for meson's mpll driver - Support for meson8b nand clocks and gxbb video decoder clocks - Mediatek mali clks - STM32MP1 fixes - Uniphier LD11/LD20 stream demux system clock -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAlsWxugACgkQrQKIl8bk lSVs2A/9HOMsWeiYx1MESrXw6N2UknWeqeT/b1v8L/VOiptJg+OTExPbzmSylngv AXJAfIkCpguSMh9b310pA3DAzk5docmbQ4zL977yY+KXmOcDooCd34aG5a+tB3ie ugC8T2bQLrJdMp3hsqaKZsYzqe7LoW2NJgoliXDMA/QUBLpvHq+fcu2zOawingTA GNc3LGqP5Op7p09aPK30gtQNqLK5qGpHASa/AY7Y0PXlUeTZ8rmF06fcEAg5shkC CT57Zy2rSFB2RorEJarYXDPLRHMw/jxXtpMVXEy7zuz/3ajvvRiZDHv75+NaBru9 hDt1rzslzexEN4fYzj4AtGYRKyBrHbDaxG1qdIWPWVyoE0CEb+dZ1gH7/Ski5r+s z5D28NogC0T0sey6yWssyG3RLvkPJ5nxUhL++siHm1lbyo16LmhB1+nFvxrlzmBB 0V1xqEa7feYpD+JD66lJFb5ornHLwGtVYBpeiY+hrDR3ddWEe1IxaYGR2p9nHwSS Us/ZQdHIYBVEqoo3+BWnTn+HSQzmd/sqHqWnLlVWUHoomm5nXx18PeS87vFbcPv9 dMr+FFJ3Elubzcy5UZJPfNw+pb+teE7tYGQkQ3nbLRxT1YZOoIJZJDqNKxM1cgne 6c/VXJMEyBBn/w7Iru/3eWCZVQJGlmYS47DFDzduFvd3LMfmKIM= =KK/v -----END PGP SIGNATURE----- Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "This time we have a good set of changes to the core framework that do some general cleanups, but nothing too major. The majority of the diff goes to two SoCs, Actions Semi and Qualcomm. A brand new driver is introduced for Actions Semi so it takes up some lines to add all the different types, and the Qualcomm diff is there because we add support for two SoCs and it's quite a bit of data. Otherwise the big driver updates are on TI Davinci and Amlogic platforms. And then the long tail of driver updates for various fixes and stuff follows after that. Core: - debugfs cleanups removing error checking and an unused provider API - Removal of a clk init typedef that isn't used - Usage of match_string() to simplify parent string name matching - OF clk helpers moved to their own file (linux/of_clk.h) - Make clk warnings more readable across kernel versions New Drivers: - Qualcomm SDM845 GCC and Video clk controllers - Qualcomm MSM8998 GCC - Actions Semi S900 SoC support - Nuvoton npcm750 microcontroller clks - Amlogic axg AO clock controller Removed Drivers: - Deprecated Rockchip clk-gate driver Updates: - debugfs functions stopped checking return values - Support for the MSIOF module clocks on Rensas R-Car M3-N - Support for the new Rensas RZ/G1C and R-Car E3 SoCs - Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs - Berlin and Amlogic SPDX tagging - Usage of of_clk_get_parent_count() in more places - Proper implementation of the CDEV1/2 clocks on Tegra20 - Allwinner H6 PRCM clock support and R40 EMAC support - Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet - Round closest support for meson's mpll driver - Support for meson8b nand clocks and gxbb video decoder clocks - Mediatek mali clks - STM32MP1 fixes - Uniphier LD11/LD20 stream demux system clock" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (134 commits) clk: qcom: Export clk_fabia_pll_configure() clk: bcm: Update and add Stingray clock entries dt-bindings: clk: Update Stingray binding doc clk-si544: Properly round requested frequency to nearest match clk: ingenic: jz4770: Add 150us delay after enabling VPU clock clk: ingenic: jz4770: Enable power of AHB1 bus after ungating VPU clock clk: ingenic: jz4770: Modify C1CLK clock to disable CPU clock stop on idle clk: ingenic: jz4770: Change OTG from custom to standard gated clock clk: ingenic: Support specifying "wait for clock stable" delay clk: ingenic: Add support for clocks whose gate bit is inverted clk: use match_string() helper clk: bcm2835: use match_string() helper clk: Return void from debug_init op clk: remove clk_debugfs_add_file() clk: tegra: no need to check return value of debugfs_create functions clk: davinci: no need to check return value of debugfs_create functions clk: bcm2835: no need to check return value of debugfs_create functions clk: no need to check return value of debugfs_create functions clk: imx6: add EPIT clock support clk: mvebu: use correct bit for 98DX3236 NAND ...
381 lines
10 KiB
C
381 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2014 Marvell Technology Group Ltd.
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*
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* Alexandre Belloni <alexandre.belloni@free-electrons.com>
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* Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
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*/
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#include <linux/clk.h>
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#include <linux/clk-provider.h>
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#include <linux/kernel.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/slab.h>
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#include <dt-bindings/clock/berlin2q.h>
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#include "berlin2-div.h"
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#include "berlin2-pll.h"
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#include "common.h"
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#define REG_PINMUX0 0x0018
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#define REG_PINMUX5 0x002c
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#define REG_SYSPLLCTL0 0x0030
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#define REG_SYSPLLCTL4 0x0040
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#define REG_CLKENABLE 0x00e8
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#define REG_CLKSELECT0 0x00ec
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#define REG_CLKSELECT1 0x00f0
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#define REG_CLKSELECT2 0x00f4
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#define REG_CLKSWITCH0 0x00f8
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#define REG_CLKSWITCH1 0x00fc
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#define REG_SW_GENERIC0 0x0110
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#define REG_SW_GENERIC3 0x011c
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#define REG_SDIO0XIN_CLKCTL 0x0158
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#define REG_SDIO1XIN_CLKCTL 0x015c
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#define MAX_CLKS 28
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static struct clk_hw_onecell_data *clk_data;
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static DEFINE_SPINLOCK(lock);
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static void __iomem *gbase;
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static void __iomem *cpupll_base;
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enum {
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REFCLK,
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SYSPLL, CPUPLL,
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AVPLL_B1, AVPLL_B2, AVPLL_B3, AVPLL_B4,
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AVPLL_B5, AVPLL_B6, AVPLL_B7, AVPLL_B8,
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};
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static const char *clk_names[] = {
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[REFCLK] = "refclk",
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[SYSPLL] = "syspll",
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[CPUPLL] = "cpupll",
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[AVPLL_B1] = "avpll_b1",
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[AVPLL_B2] = "avpll_b2",
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[AVPLL_B3] = "avpll_b3",
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[AVPLL_B4] = "avpll_b4",
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[AVPLL_B5] = "avpll_b5",
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[AVPLL_B6] = "avpll_b6",
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[AVPLL_B7] = "avpll_b7",
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[AVPLL_B8] = "avpll_b8",
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};
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static const struct berlin2_pll_map bg2q_pll_map __initconst = {
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.vcodiv = {1, 0, 2, 0, 3, 4, 0, 6, 8},
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.mult = 1,
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.fbdiv_shift = 7,
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.rfdiv_shift = 2,
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.divsel_shift = 9,
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};
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static const u8 default_parent_ids[] = {
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SYSPLL, AVPLL_B4, AVPLL_B5, AVPLL_B6, AVPLL_B7, SYSPLL
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};
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static const struct berlin2_div_data bg2q_divs[] __initconst = {
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{
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.name = "sys",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 0),
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BERLIN2_PLL_SELECT(REG_CLKSELECT0, 0),
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BERLIN2_DIV_SELECT(REG_CLKSELECT0, 3),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 3),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 4),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 5),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = CLK_IGNORE_UNUSED,
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},
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{
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.name = "drmfigo",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 17),
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BERLIN2_PLL_SELECT(REG_CLKSELECT0, 6),
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BERLIN2_DIV_SELECT(REG_CLKSELECT0, 9),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 6),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 7),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 8),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "cfg",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 1),
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BERLIN2_PLL_SELECT(REG_CLKSELECT0, 12),
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BERLIN2_DIV_SELECT(REG_CLKSELECT0, 15),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 9),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 10),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 11),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "gfx2d",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 4),
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BERLIN2_PLL_SELECT(REG_CLKSELECT0, 18),
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BERLIN2_DIV_SELECT(REG_CLKSELECT0, 21),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 12),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 13),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 14),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "zsp",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 6),
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BERLIN2_PLL_SELECT(REG_CLKSELECT0, 24),
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BERLIN2_DIV_SELECT(REG_CLKSELECT0, 27),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 15),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 16),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 17),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "perif",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 7),
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BERLIN2_PLL_SELECT(REG_CLKSELECT1, 0),
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BERLIN2_DIV_SELECT(REG_CLKSELECT1, 3),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 18),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 19),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 20),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = CLK_IGNORE_UNUSED,
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},
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{
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.name = "pcube",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 2),
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BERLIN2_PLL_SELECT(REG_CLKSELECT1, 6),
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BERLIN2_DIV_SELECT(REG_CLKSELECT1, 9),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 21),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 22),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 23),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "vscope",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 3),
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BERLIN2_PLL_SELECT(REG_CLKSELECT1, 12),
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BERLIN2_DIV_SELECT(REG_CLKSELECT1, 15),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 24),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 25),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 26),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "nfc_ecc",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 19),
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BERLIN2_PLL_SELECT(REG_CLKSELECT1, 18),
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BERLIN2_DIV_SELECT(REG_CLKSELECT1, 21),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 27),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 28),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 29),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "vpp",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 21),
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BERLIN2_PLL_SELECT(REG_CLKSELECT1, 24),
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BERLIN2_DIV_SELECT(REG_CLKSELECT1, 27),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 30),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 31),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 0),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "app",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_DIV_GATE(REG_CLKENABLE, 20),
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BERLIN2_PLL_SELECT(REG_CLKSELECT2, 0),
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BERLIN2_DIV_SELECT(REG_CLKSELECT2, 3),
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BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 1),
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BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 2),
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BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 3),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "sdio0xin",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_SINGLE_DIV(REG_SDIO0XIN_CLKCTL),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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{
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.name = "sdio1xin",
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.parent_ids = default_parent_ids,
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.num_parents = ARRAY_SIZE(default_parent_ids),
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.map = {
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BERLIN2_SINGLE_DIV(REG_SDIO1XIN_CLKCTL),
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},
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.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
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.flags = 0,
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},
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};
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static const struct berlin2_gate_data bg2q_gates[] __initconst = {
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{ "gfx2daxi", "perif", 5 },
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{ "geth0", "perif", 8 },
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{ "sata", "perif", 9 },
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{ "ahbapb", "perif", 10, CLK_IGNORE_UNUSED },
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{ "usb0", "perif", 11 },
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{ "usb1", "perif", 12 },
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{ "usb2", "perif", 13 },
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{ "usb3", "perif", 14 },
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{ "pbridge", "perif", 15, CLK_IGNORE_UNUSED },
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{ "sdio", "perif", 16 },
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{ "nfc", "perif", 18 },
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{ "pcie", "perif", 22 },
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};
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static void __init berlin2q_clock_setup(struct device_node *np)
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{
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struct device_node *parent_np = of_get_parent(np);
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const char *parent_names[9];
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struct clk *clk;
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struct clk_hw **hws;
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int n, ret;
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clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL);
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if (!clk_data)
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return;
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clk_data->num = MAX_CLKS;
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hws = clk_data->hws;
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gbase = of_iomap(parent_np, 0);
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if (!gbase) {
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pr_err("%pOF: Unable to map global base\n", np);
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return;
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}
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/* BG2Q CPU PLL is not part of global registers */
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cpupll_base = of_iomap(parent_np, 1);
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if (!cpupll_base) {
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pr_err("%pOF: Unable to map cpupll base\n", np);
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iounmap(gbase);
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return;
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}
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/* overwrite default clock names with DT provided ones */
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clk = of_clk_get_by_name(np, clk_names[REFCLK]);
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if (!IS_ERR(clk)) {
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clk_names[REFCLK] = __clk_get_name(clk);
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clk_put(clk);
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}
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/* simple register PLLs */
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ret = berlin2_pll_register(&bg2q_pll_map, gbase + REG_SYSPLLCTL0,
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clk_names[SYSPLL], clk_names[REFCLK], 0);
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if (ret)
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goto bg2q_fail;
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ret = berlin2_pll_register(&bg2q_pll_map, cpupll_base,
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clk_names[CPUPLL], clk_names[REFCLK], 0);
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if (ret)
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goto bg2q_fail;
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/* TODO: add BG2Q AVPLL */
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/*
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* TODO: add reference clock bypass switches:
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* memPLLSWBypass, cpuPLLSWBypass, and sysPLLSWBypass
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*/
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/* clock divider cells */
|
|
for (n = 0; n < ARRAY_SIZE(bg2q_divs); n++) {
|
|
const struct berlin2_div_data *dd = &bg2q_divs[n];
|
|
int k;
|
|
|
|
for (k = 0; k < dd->num_parents; k++)
|
|
parent_names[k] = clk_names[dd->parent_ids[k]];
|
|
|
|
hws[CLKID_SYS + n] = berlin2_div_register(&dd->map, gbase,
|
|
dd->name, dd->div_flags, parent_names,
|
|
dd->num_parents, dd->flags, &lock);
|
|
}
|
|
|
|
/* clock gate cells */
|
|
for (n = 0; n < ARRAY_SIZE(bg2q_gates); n++) {
|
|
const struct berlin2_gate_data *gd = &bg2q_gates[n];
|
|
|
|
hws[CLKID_GFX2DAXI + n] = clk_hw_register_gate(NULL, gd->name,
|
|
gd->parent_name, gd->flags, gbase + REG_CLKENABLE,
|
|
gd->bit_idx, 0, &lock);
|
|
}
|
|
|
|
/* cpuclk divider is fixed to 1 */
|
|
hws[CLKID_CPU] =
|
|
clk_hw_register_fixed_factor(NULL, "cpu", clk_names[CPUPLL],
|
|
0, 1, 1);
|
|
/* twdclk is derived from cpu/3 */
|
|
hws[CLKID_TWD] =
|
|
clk_hw_register_fixed_factor(NULL, "twd", "cpu", 0, 1, 3);
|
|
|
|
/* check for errors on leaf clocks */
|
|
for (n = 0; n < MAX_CLKS; n++) {
|
|
if (!IS_ERR(hws[n]))
|
|
continue;
|
|
|
|
pr_err("%pOF: Unable to register leaf clock %d\n", np, n);
|
|
goto bg2q_fail;
|
|
}
|
|
|
|
/* register clk-provider */
|
|
of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
|
|
|
|
return;
|
|
|
|
bg2q_fail:
|
|
iounmap(cpupll_base);
|
|
iounmap(gbase);
|
|
}
|
|
CLK_OF_DECLARE(berlin2q_clk, "marvell,berlin2q-clk",
|
|
berlin2q_clock_setup);
|