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linux/drivers/clk/hisilicon/clk-hi3559a.c
Linus Torvalds e81507acdc Nothing looks out of the ordinary in this batch of clk driver updates. There 
are a couple patches to the core clk framework, but they're all basically
 cleanups or debugging aids. The driver updates and new additions are dominated
 in the diffstat by Qualcomm and MediaTek drivers. Qualcomm gained a handful of
 new drivers for various SoCs, and MediaTek gained a bunch of drivers for
 MT8188. The MediaTek drivers are being modernized as well, so there are
 updates all over that vendor's clk drivers. There's also a couple other new clk
 drivers in here, for example the Starfive JH7110 SoC support is added.
 
 Outside of the two major SoC vendors though, we have the usual collection of
 non-critical fixes and cleanups to various clk drivers. It's good to see that
 we're getting more cleanups and modernization patches. Maybe one day we'll be
 able to properly split clk providers from clk consumers.
 
 Core:
  - Print an informational message before disabling unused clks
 
 New Drivers:
  - BCM63268 timer clock and reset controller
  - Frequency Hopping (FHCTL) on MediaTek MT6795, MT8173, MT8192 and
    MT8195 SoCs
  - Mediatek MT8188 SoC clk drivers
  - Clock driver for Sunplus SP7021 SoC
  - Clk driver support for Loongson-2 SoCs
  - Clock driver for Skyworks Si521xx I2C PCIe clock generators
  - Initial Starfive JH7110 clk/reset support
  - Global clock controller drivers for Qualcomm SM7150, IPQ9574, MSM8917 and IPQ5332 SoCs
  - GPU clock controller drivers for SM6115, SM6125, SM6375 and SA8775P SoCs
 
 Updates:
  - Shrink size of clk_fractional_divider a little
  - Convert various clk drivers to devm_of_clk_add_hw_provider()
  - Convert platform clk drivers to remove_new()
  - Converted most Mediatek clock drivers to struct platform_driver
  - MediaTek clock drivers can be built as modules
  - Reimplement Loongson-1 clk driver with DT support
  - Migrate socfpga clk driver to of_clk_add_hw_provider()
  - Support for i3c clks on Aspeed ast2600 SoCs
  - Add clock generic devm_clk_hw_register_gate_parent_data
  - Add audiomix block control for i.MX8MP
  - Add support for determine_rate to i.MX composite-8m
  - Let the LCDIF Pixel clock of i.MX8MM and i.MX8MN set parent rate
  - Provide clock name in error message for clk-gpr-mux on get parent failure
  - Drop duplicate imx_clk_mux_flags macro
  - Register the i.MX8MP Media Disp2 Pix clock as bus clock
  - Add Media LDB root clock to i.MX8MP
  - Make i.MX8MP nand_usdhc_bus clock as non-critical
  - Fix the rate table for i.MX fracn-gppll
  - Disable HW control for the fracn-gppll in order to be controlled by
    register write
  - Add support for interger PLL in fracn-gppll
  - Add mcore_booted module parameter to i.MX93 provider
  - Add NIC, A55 and ARM PLL clocks to i.MX93
  - Fix i.MX8ULP XBAR_DIVBUS and AD_SLOW clock parents
  - Use "divider closest" clock type for PLL4_PFD dividers on i.MX8ULP to
    get more accurate clock rates
  - Mark the MU0_Bi and TPM5 clocks on i.MX8ULP as critical
  - Update some of the i.MX critical clocks flags to allow glitchless
    on-the-fly rate change.
  - Add I2C5 clock on Renesas R-Car V3H
  - Exynos850: Add CMU_G3D clock controller for the Mali GPU
  - Extract Exynos5433 (ARM64) clock controller power management code to
    common driver parts
  - Exynos850: make PMU_ALIVE_PCLK clock critical
  - Add Audio, thermal, camera (CSI-2), Image Signal Processor/Channel
    Selector (ISPCS), and video capture (VIN) clocks on Renesas R-Car V4H
  - Add video capture (VIN) clocks on Renesas R-Car V3H
  - Add Cortex-A53 System CPU (Z2) clocks on Renesas R-Car V3M and V3H
  - Support for Stromer Plus PLL on Qualcomm IPQ5332
  - Add a missing reset to Qualcomm QCM2290
  - Migrate Qualcomm IPQ4019 to clk_parent_data
  - Make USB GDSCs enter retention state when disabled on Qualcomm SM6375,
    MSM8996 and MSM8998 SoCs
  - Set floor rounding clk_ops for Qualcomm QCM2290 SDCC2 clk
  - Add two EMAC GDSCs on Qualcomm SC8280XP
  - Use shared rcg clk ops in Qualcomm SM6115 GCC
  - Park Qualcomm SM8350 PCIe PIPE clks when disabled
  - Add GDSCs to Qualcomm SC7280 LPASS audio clock controller
  - Add missing XO clocks to Qualcomm MSM8226 and MSM8974
  - Convert some Qualcomm clk DT bindings to YAML
  - Reparenting fix for the clock supplying camera modules on Rockchip rk3399
  - Mark more critical (bus-)clocks on Rockchip rk3588
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "Nothing looks out of the ordinary in this batch of clk driver updates.

  There are a couple patches to the core clk framework, but they're all
  basically cleanups or debugging aids. The driver updates and new
  additions are dominated in the diffstat by Qualcomm and MediaTek
  drivers. Qualcomm gained a handful of new drivers for various SoCs,
  and MediaTek gained a bunch of drivers for MT8188. The MediaTek
  drivers are being modernized as well, so there are updates all over
  that vendor's clk drivers. There's also a couple other new clk drivers
  in here, for example the Starfive JH7110 SoC support is added.

  Outside of the two major SoC vendors though, we have the usual
  collection of non-critical fixes and cleanups to various clk drivers.
  It's good to see that we're getting more cleanups and modernization
  patches. Maybe one day we'll be able to properly split clk providers
  from clk consumers.

  Core:
   - Print an informational message before disabling unused clks

  New Drivers:
   - BCM63268 timer clock and reset controller
   - Frequency Hopping (FHCTL) on MediaTek MT6795, MT8173, MT8192 and
     MT8195 SoCs
   - Mediatek MT8188 SoC clk drivers
   - Clock driver for Sunplus SP7021 SoC
   - Clk driver support for Loongson-2 SoCs
   - Clock driver for Skyworks Si521xx I2C PCIe clock generators
   - Initial Starfive JH7110 clk/reset support
   - Global clock controller drivers for Qualcomm SM7150, IPQ9574,
     MSM8917 and IPQ5332 SoCs
   - GPU clock controller drivers for SM6115, SM6125, SM6375 and SA8775P
     SoCs

  Updates:
   - Shrink size of clk_fractional_divider a little
   - Convert various clk drivers to devm_of_clk_add_hw_provider()
   - Convert platform clk drivers to remove_new()
   - Converted most Mediatek clock drivers to struct platform_driver
   - MediaTek clock drivers can be built as modules
   - Reimplement Loongson-1 clk driver with DT support
   - Migrate socfpga clk driver to of_clk_add_hw_provider()
   - Support for i3c clks on Aspeed ast2600 SoCs
   - Add clock generic devm_clk_hw_register_gate_parent_data
   - Add audiomix block control for i.MX8MP
   - Add support for determine_rate to i.MX composite-8m
   - Let the LCDIF Pixel clock of i.MX8MM and i.MX8MN set parent rate
   - Provide clock name in error message for clk-gpr-mux on get parent
     failure
   - Drop duplicate imx_clk_mux_flags macro
   - Register the i.MX8MP Media Disp2 Pix clock as bus clock
   - Add Media LDB root clock to i.MX8MP
   - Make i.MX8MP nand_usdhc_bus clock as non-critical
   - Fix the rate table for i.MX fracn-gppll
   - Disable HW control for the fracn-gppll in order to be controlled by
     register write
   - Add support for interger PLL in fracn-gppll
   - Add mcore_booted module parameter to i.MX93 provider
   - Add NIC, A55 and ARM PLL clocks to i.MX93
   - Fix i.MX8ULP XBAR_DIVBUS and AD_SLOW clock parents
   - Use "divider closest" clock type for PLL4_PFD dividers on i.MX8ULP
     to get more accurate clock rates
   - Mark the MU0_Bi and TPM5 clocks on i.MX8ULP as critical
   - Update some of the i.MX critical clocks flags to allow glitchless
     on-the-fly rate change.
   - Add I2C5 clock on Renesas R-Car V3H
   - Exynos850: Add CMU_G3D clock controller for the Mali GPU
   - Extract Exynos5433 (ARM64) clock controller power management code
     to common driver parts
   - Exynos850: make PMU_ALIVE_PCLK clock critical
   - Add Audio, thermal, camera (CSI-2), Image Signal Processor/Channel
     Selector (ISPCS), and video capture (VIN) clocks on Renesas R-Car
     V4H
   - Add video capture (VIN) clocks on Renesas R-Car V3H
   - Add Cortex-A53 System CPU (Z2) clocks on Renesas R-Car V3M and V3H
   - Support for Stromer Plus PLL on Qualcomm IPQ5332
   - Add a missing reset to Qualcomm QCM2290
   - Migrate Qualcomm IPQ4019 to clk_parent_data
   - Make USB GDSCs enter retention state when disabled on Qualcomm
     SM6375, MSM8996 and MSM8998 SoCs
   - Set floor rounding clk_ops for Qualcomm QCM2290 SDCC2 clk
   - Add two EMAC GDSCs on Qualcomm SC8280XP
   - Use shared rcg clk ops in Qualcomm SM6115 GCC
   - Park Qualcomm SM8350 PCIe PIPE clks when disabled
   - Add GDSCs to Qualcomm SC7280 LPASS audio clock controller
   - Add missing XO clocks to Qualcomm MSM8226 and MSM8974
   - Convert some Qualcomm clk DT bindings to YAML
   - Reparenting fix for the clock supplying camera modules on Rockchip
     rk3399
   - Mark more critical (bus-)clocks on Rockchip rk3588"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (290 commits)
  clk: qcom: gcc-sc8280xp: Add EMAC GDSCs
  clk: starfive: Delete the redundant dev_set_drvdata() in JH7110 clock drivers
  clk: rockchip: rk3588: make gate linked clocks critical
  clk: qcom: dispcc-qcm2290: Remove inexistent DSI1PHY clk
  clk: qcom: add the GPUCC driver for sa8775p
  dt-bindings: clock: qcom: describe the GPUCC clock for SA8775P
  clk: qcom: gcc-sm8350: fix PCIe PIPE clocks handling
  clk: qcom: lpassaudiocc-sc7280: Add required gdsc power domain clks in lpass_cc_sc7280_desc
  clk: qcom: lpasscc-sc7280: Skip qdsp6ss clock registration
  dt-bindings: clock: qcom,sc7280-lpasscc: Add qcom,adsp-pil-mode property
  clk: starfive: Avoid casting iomem pointers
  clk: microchip: fix potential UAF in auxdev release callback
  clk: qcom: rpm: Use managed `of_clk_add_hw_provider()`
  clk: mediatek: fhctl: Mark local variables static
  clk: sifive: make SiFive clk drivers depend on ARCH_ symbols
  clk: uniphier: Use managed `of_clk_add_hw_provider()`
  clk: si5351: Use managed `of_clk_add_hw_provider()`
  clk: si570: Use managed `of_clk_add_hw_provider()`
  clk: si514: Use managed `of_clk_add_hw_provider()`
  clk: lmk04832: Use managed `of_clk_add_hw_provider()`
  ...
2023-04-29 17:29:39 -07:00

844 lines
24 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
/*
* Hisilicon Hi3559A clock driver
*
* Copyright (c) 2019-2020, Huawei Tech. Co., Ltd.
*
* Author: Dongjiu Geng <gengdongjiu@huawei.com>
*/
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <dt-bindings/clock/hi3559av100-clock.h>
#include "clk.h"
#include "crg.h"
#include "reset.h"
#define CRG_BASE_ADDR 0x18020000
#define PLL_MASK_WIDTH 24
struct hi3559av100_pll_clock {
u32 id;
const char *name;
const char *parent_name;
const u32 ctrl_reg1;
const u8 frac_shift;
const u8 frac_width;
const u8 postdiv1_shift;
const u8 postdiv1_width;
const u8 postdiv2_shift;
const u8 postdiv2_width;
const u32 ctrl_reg2;
const u8 fbdiv_shift;
const u8 fbdiv_width;
const u8 refdiv_shift;
const u8 refdiv_width;
};
struct hi3559av100_clk_pll {
struct clk_hw hw;
u32 id;
void __iomem *ctrl_reg1;
u8 frac_shift;
u8 frac_width;
u8 postdiv1_shift;
u8 postdiv1_width;
u8 postdiv2_shift;
u8 postdiv2_width;
void __iomem *ctrl_reg2;
u8 fbdiv_shift;
u8 fbdiv_width;
u8 refdiv_shift;
u8 refdiv_width;
};
/* soc clk config */
static const struct hisi_fixed_rate_clock hi3559av100_fixed_rate_clks_crg[] = {
{ HI3559AV100_FIXED_1188M, "1188m", NULL, 0, 1188000000, },
{ HI3559AV100_FIXED_1000M, "1000m", NULL, 0, 1000000000, },
{ HI3559AV100_FIXED_842M, "842m", NULL, 0, 842000000, },
{ HI3559AV100_FIXED_792M, "792m", NULL, 0, 792000000, },
{ HI3559AV100_FIXED_750M, "750m", NULL, 0, 750000000, },
{ HI3559AV100_FIXED_710M, "710m", NULL, 0, 710000000, },
{ HI3559AV100_FIXED_680M, "680m", NULL, 0, 680000000, },
{ HI3559AV100_FIXED_667M, "667m", NULL, 0, 667000000, },
{ HI3559AV100_FIXED_631M, "631m", NULL, 0, 631000000, },
{ HI3559AV100_FIXED_600M, "600m", NULL, 0, 600000000, },
{ HI3559AV100_FIXED_568M, "568m", NULL, 0, 568000000, },
{ HI3559AV100_FIXED_500M, "500m", NULL, 0, 500000000, },
{ HI3559AV100_FIXED_475M, "475m", NULL, 0, 475000000, },
{ HI3559AV100_FIXED_428M, "428m", NULL, 0, 428000000, },
{ HI3559AV100_FIXED_400M, "400m", NULL, 0, 400000000, },
{ HI3559AV100_FIXED_396M, "396m", NULL, 0, 396000000, },
{ HI3559AV100_FIXED_300M, "300m", NULL, 0, 300000000, },
{ HI3559AV100_FIXED_250M, "250m", NULL, 0, 250000000, },
{ HI3559AV100_FIXED_200M, "200m", NULL, 0, 200000000, },
{ HI3559AV100_FIXED_198M, "198m", NULL, 0, 198000000, },
{ HI3559AV100_FIXED_187p5M, "187p5m", NULL, 0, 187500000, },
{ HI3559AV100_FIXED_150M, "150m", NULL, 0, 150000000, },
{ HI3559AV100_FIXED_148p5M, "148p5m", NULL, 0, 1485000000, },
{ HI3559AV100_FIXED_125M, "125m", NULL, 0, 125000000, },
{ HI3559AV100_FIXED_107M, "107m", NULL, 0, 107000000, },
{ HI3559AV100_FIXED_100M, "100m", NULL, 0, 100000000, },
{ HI3559AV100_FIXED_99M, "99m", NULL, 0, 99000000, },
{ HI3559AV100_FIXED_75M, "75m", NULL, 0, 75000000, },
{ HI3559AV100_FIXED_74p25M, "74p25m", NULL, 0, 74250000, },
{ HI3559AV100_FIXED_72M, "72m", NULL, 0, 72000000, },
{ HI3559AV100_FIXED_60M, "60m", NULL, 0, 60000000, },
{ HI3559AV100_FIXED_54M, "54m", NULL, 0, 54000000, },
{ HI3559AV100_FIXED_50M, "50m", NULL, 0, 50000000, },
{ HI3559AV100_FIXED_49p5M, "49p5m", NULL, 0, 49500000, },
{ HI3559AV100_FIXED_37p125M, "37p125m", NULL, 0, 37125000, },
{ HI3559AV100_FIXED_36M, "36m", NULL, 0, 36000000, },
{ HI3559AV100_FIXED_32p4M, "32p4m", NULL, 0, 32400000, },
{ HI3559AV100_FIXED_27M, "27m", NULL, 0, 27000000, },
{ HI3559AV100_FIXED_25M, "25m", NULL, 0, 25000000, },
{ HI3559AV100_FIXED_24M, "24m", NULL, 0, 24000000, },
{ HI3559AV100_FIXED_12M, "12m", NULL, 0, 12000000, },
{ HI3559AV100_FIXED_3M, "3m", NULL, 0, 3000000, },
{ HI3559AV100_FIXED_1p6M, "1p6m", NULL, 0, 1600000, },
{ HI3559AV100_FIXED_400K, "400k", NULL, 0, 400000, },
{ HI3559AV100_FIXED_100K, "100k", NULL, 0, 100000, },
};
static const char *fmc_mux_p[] = {
"24m", "75m", "125m", "150m", "200m", "250m", "300m", "400m"
};
static const char *mmc_mux_p[] = {
"100k", "25m", "49p5m", "99m", "187p5m", "150m", "198m", "400k"
};
static const char *sysapb_mux_p[] = {
"24m", "50m",
};
static const char *sysbus_mux_p[] = {
"24m", "300m"
};
static const char *uart_mux_p[] = { "50m", "24m", "3m" };
static const char *a73_clksel_mux_p[] = {
"24m", "apll", "1000m"
};
static const u32 fmc_mux_table[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
static const u32 mmc_mux_table[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
static const u32 sysapb_mux_table[] = { 0, 1 };
static const u32 sysbus_mux_table[] = { 0, 1 };
static const u32 uart_mux_table[] = { 0, 1, 2 };
static const u32 a73_clksel_mux_table[] = { 0, 1, 2 };
static struct hisi_mux_clock hi3559av100_mux_clks_crg[] = {
{
HI3559AV100_FMC_MUX, "fmc_mux", fmc_mux_p, ARRAY_SIZE(fmc_mux_p),
CLK_SET_RATE_PARENT, 0x170, 2, 3, 0, fmc_mux_table,
},
{
HI3559AV100_MMC0_MUX, "mmc0_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
CLK_SET_RATE_PARENT, 0x1a8, 24, 3, 0, mmc_mux_table,
},
{
HI3559AV100_MMC1_MUX, "mmc1_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
CLK_SET_RATE_PARENT, 0x1ec, 24, 3, 0, mmc_mux_table,
},
{
HI3559AV100_MMC2_MUX, "mmc2_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
CLK_SET_RATE_PARENT, 0x214, 24, 3, 0, mmc_mux_table,
},
{
HI3559AV100_MMC3_MUX, "mmc3_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
CLK_SET_RATE_PARENT, 0x23c, 24, 3, 0, mmc_mux_table,
},
{
HI3559AV100_SYSAPB_MUX, "sysapb_mux", sysapb_mux_p, ARRAY_SIZE(sysapb_mux_p),
CLK_SET_RATE_PARENT, 0xe8, 3, 1, 0, sysapb_mux_table
},
{
HI3559AV100_SYSBUS_MUX, "sysbus_mux", sysbus_mux_p, ARRAY_SIZE(sysbus_mux_p),
CLK_SET_RATE_PARENT, 0xe8, 0, 1, 0, sysbus_mux_table
},
{
HI3559AV100_UART_MUX, "uart_mux", uart_mux_p, ARRAY_SIZE(uart_mux_p),
CLK_SET_RATE_PARENT, 0x198, 28, 2, 0, uart_mux_table
},
{
HI3559AV100_A73_MUX, "a73_mux", a73_clksel_mux_p, ARRAY_SIZE(a73_clksel_mux_p),
CLK_SET_RATE_PARENT, 0xe4, 0, 2, 0, a73_clksel_mux_table
},
};
static struct hisi_gate_clock hi3559av100_gate_clks[] = {
{
HI3559AV100_FMC_CLK, "clk_fmc", "fmc_mux",
CLK_SET_RATE_PARENT, 0x170, 1, 0,
},
{
HI3559AV100_MMC0_CLK, "clk_mmc0", "mmc0_mux",
CLK_SET_RATE_PARENT, 0x1a8, 28, 0,
},
{
HI3559AV100_MMC1_CLK, "clk_mmc1", "mmc1_mux",
CLK_SET_RATE_PARENT, 0x1ec, 28, 0,
},
{
HI3559AV100_MMC2_CLK, "clk_mmc2", "mmc2_mux",
CLK_SET_RATE_PARENT, 0x214, 28, 0,
},
{
HI3559AV100_MMC3_CLK, "clk_mmc3", "mmc3_mux",
CLK_SET_RATE_PARENT, 0x23c, 28, 0,
},
{
HI3559AV100_UART0_CLK, "clk_uart0", "uart_mux",
CLK_SET_RATE_PARENT, 0x198, 23, 0,
},
{
HI3559AV100_UART1_CLK, "clk_uart1", "uart_mux",
CLK_SET_RATE_PARENT, 0x198, 24, 0,
},
{
HI3559AV100_UART2_CLK, "clk_uart2", "uart_mux",
CLK_SET_RATE_PARENT, 0x198, 25, 0,
},
{
HI3559AV100_UART3_CLK, "clk_uart3", "uart_mux",
CLK_SET_RATE_PARENT, 0x198, 26, 0,
},
{
HI3559AV100_UART4_CLK, "clk_uart4", "uart_mux",
CLK_SET_RATE_PARENT, 0x198, 27, 0,
},
{
HI3559AV100_ETH_CLK, "clk_eth", NULL,
CLK_SET_RATE_PARENT, 0x0174, 1, 0,
},
{
HI3559AV100_ETH_MACIF_CLK, "clk_eth_macif", NULL,
CLK_SET_RATE_PARENT, 0x0174, 5, 0,
},
{
HI3559AV100_ETH1_CLK, "clk_eth1", NULL,
CLK_SET_RATE_PARENT, 0x0174, 3, 0,
},
{
HI3559AV100_ETH1_MACIF_CLK, "clk_eth1_macif", NULL,
CLK_SET_RATE_PARENT, 0x0174, 7, 0,
},
{
HI3559AV100_I2C0_CLK, "clk_i2c0", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 16, 0,
},
{
HI3559AV100_I2C1_CLK, "clk_i2c1", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 17, 0,
},
{
HI3559AV100_I2C2_CLK, "clk_i2c2", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 18, 0,
},
{
HI3559AV100_I2C3_CLK, "clk_i2c3", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 19, 0,
},
{
HI3559AV100_I2C4_CLK, "clk_i2c4", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 20, 0,
},
{
HI3559AV100_I2C5_CLK, "clk_i2c5", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 21, 0,
},
{
HI3559AV100_I2C6_CLK, "clk_i2c6", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 22, 0,
},
{
HI3559AV100_I2C7_CLK, "clk_i2c7", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 23, 0,
},
{
HI3559AV100_I2C8_CLK, "clk_i2c8", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 24, 0,
},
{
HI3559AV100_I2C9_CLK, "clk_i2c9", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 25, 0,
},
{
HI3559AV100_I2C10_CLK, "clk_i2c10", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 26, 0,
},
{
HI3559AV100_I2C11_CLK, "clk_i2c11", "50m",
CLK_SET_RATE_PARENT, 0x01a0, 27, 0,
},
{
HI3559AV100_SPI0_CLK, "clk_spi0", "100m",
CLK_SET_RATE_PARENT, 0x0198, 16, 0,
},
{
HI3559AV100_SPI1_CLK, "clk_spi1", "100m",
CLK_SET_RATE_PARENT, 0x0198, 17, 0,
},
{
HI3559AV100_SPI2_CLK, "clk_spi2", "100m",
CLK_SET_RATE_PARENT, 0x0198, 18, 0,
},
{
HI3559AV100_SPI3_CLK, "clk_spi3", "100m",
CLK_SET_RATE_PARENT, 0x0198, 19, 0,
},
{
HI3559AV100_SPI4_CLK, "clk_spi4", "100m",
CLK_SET_RATE_PARENT, 0x0198, 20, 0,
},
{
HI3559AV100_SPI5_CLK, "clk_spi5", "100m",
CLK_SET_RATE_PARENT, 0x0198, 21, 0,
},
{
HI3559AV100_SPI6_CLK, "clk_spi6", "100m",
CLK_SET_RATE_PARENT, 0x0198, 22, 0,
},
{
HI3559AV100_EDMAC_AXICLK, "axi_clk_edmac", NULL,
CLK_SET_RATE_PARENT, 0x16c, 6, 0,
},
{
HI3559AV100_EDMAC_CLK, "clk_edmac", NULL,
CLK_SET_RATE_PARENT, 0x16c, 5, 0,
},
{
HI3559AV100_EDMAC1_AXICLK, "axi_clk_edmac1", NULL,
CLK_SET_RATE_PARENT, 0x16c, 9, 0,
},
{
HI3559AV100_EDMAC1_CLK, "clk_edmac1", NULL,
CLK_SET_RATE_PARENT, 0x16c, 8, 0,
},
{
HI3559AV100_VDMAC_CLK, "clk_vdmac", NULL,
CLK_SET_RATE_PARENT, 0x14c, 5, 0,
},
};
static struct hi3559av100_pll_clock hi3559av100_pll_clks[] = {
{
HI3559AV100_APLL_CLK, "apll", NULL, 0x0, 0, 24, 24, 3, 28, 3,
0x4, 0, 12, 12, 6
},
{
HI3559AV100_GPLL_CLK, "gpll", NULL, 0x20, 0, 24, 24, 3, 28, 3,
0x24, 0, 12, 12, 6
},
};
#define to_pll_clk(_hw) container_of(_hw, struct hi3559av100_clk_pll, hw)
static void hi3559av100_calc_pll(u32 *frac_val, u32 *postdiv1_val,
u32 *postdiv2_val,
u32 *fbdiv_val, u32 *refdiv_val, u64 rate)
{
u64 rem;
*postdiv1_val = 2;
*postdiv2_val = 1;
rate = rate * ((*postdiv1_val) * (*postdiv2_val));
*frac_val = 0;
rem = do_div(rate, 1000000);
rem = do_div(rate, PLL_MASK_WIDTH);
*fbdiv_val = rate;
*refdiv_val = 1;
rem = rem * (1 << PLL_MASK_WIDTH);
do_div(rem, PLL_MASK_WIDTH);
*frac_val = rem;
}
static int clk_pll_set_rate(struct clk_hw *hw,
unsigned long rate,
unsigned long parent_rate)
{
struct hi3559av100_clk_pll *clk = to_pll_clk(hw);
u32 frac_val, postdiv1_val, postdiv2_val, fbdiv_val, refdiv_val;
u32 val;
postdiv1_val = postdiv2_val = 0;
hi3559av100_calc_pll(&frac_val, &postdiv1_val, &postdiv2_val,
&fbdiv_val, &refdiv_val, (u64)rate);
val = readl_relaxed(clk->ctrl_reg1);
val &= ~(((1 << clk->frac_width) - 1) << clk->frac_shift);
val &= ~(((1 << clk->postdiv1_width) - 1) << clk->postdiv1_shift);
val &= ~(((1 << clk->postdiv2_width) - 1) << clk->postdiv2_shift);
val |= frac_val << clk->frac_shift;
val |= postdiv1_val << clk->postdiv1_shift;
val |= postdiv2_val << clk->postdiv2_shift;
writel_relaxed(val, clk->ctrl_reg1);
val = readl_relaxed(clk->ctrl_reg2);
val &= ~(((1 << clk->fbdiv_width) - 1) << clk->fbdiv_shift);
val &= ~(((1 << clk->refdiv_width) - 1) << clk->refdiv_shift);
val |= fbdiv_val << clk->fbdiv_shift;
val |= refdiv_val << clk->refdiv_shift;
writel_relaxed(val, clk->ctrl_reg2);
return 0;
}
static unsigned long clk_pll_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct hi3559av100_clk_pll *clk = to_pll_clk(hw);
u64 frac_val, fbdiv_val, refdiv_val;
u32 postdiv1_val, postdiv2_val;
u32 val;
u64 tmp, rate;
val = readl_relaxed(clk->ctrl_reg1);
val = val >> clk->frac_shift;
val &= ((1 << clk->frac_width) - 1);
frac_val = val;
val = readl_relaxed(clk->ctrl_reg1);
val = val >> clk->postdiv1_shift;
val &= ((1 << clk->postdiv1_width) - 1);
postdiv1_val = val;
val = readl_relaxed(clk->ctrl_reg1);
val = val >> clk->postdiv2_shift;
val &= ((1 << clk->postdiv2_width) - 1);
postdiv2_val = val;
val = readl_relaxed(clk->ctrl_reg2);
val = val >> clk->fbdiv_shift;
val &= ((1 << clk->fbdiv_width) - 1);
fbdiv_val = val;
val = readl_relaxed(clk->ctrl_reg2);
val = val >> clk->refdiv_shift;
val &= ((1 << clk->refdiv_width) - 1);
refdiv_val = val;
/* rate = 24000000 * (fbdiv + frac / (1<<24) ) / refdiv */
rate = 0;
tmp = 24000000 * fbdiv_val + (24000000 * frac_val) / (1 << 24);
rate += tmp;
do_div(rate, refdiv_val);
do_div(rate, postdiv1_val * postdiv2_val);
return rate;
}
static const struct clk_ops hisi_clk_pll_ops = {
.set_rate = clk_pll_set_rate,
.recalc_rate = clk_pll_recalc_rate,
};
static void hisi_clk_register_pll(struct hi3559av100_pll_clock *clks,
int nums, struct hisi_clock_data *data, struct device *dev)
{
void __iomem *base = data->base;
struct hi3559av100_clk_pll *p_clk = NULL;
struct clk *clk = NULL;
struct clk_init_data init;
int i;
p_clk = devm_kzalloc(dev, sizeof(*p_clk) * nums, GFP_KERNEL);
if (!p_clk)
return;
for (i = 0; i < nums; i++) {
init.name = clks[i].name;
init.flags = 0;
init.parent_names =
(clks[i].parent_name ? &clks[i].parent_name : NULL);
init.num_parents = (clks[i].parent_name ? 1 : 0);
init.ops = &hisi_clk_pll_ops;
p_clk->ctrl_reg1 = base + clks[i].ctrl_reg1;
p_clk->frac_shift = clks[i].frac_shift;
p_clk->frac_width = clks[i].frac_width;
p_clk->postdiv1_shift = clks[i].postdiv1_shift;
p_clk->postdiv1_width = clks[i].postdiv1_width;
p_clk->postdiv2_shift = clks[i].postdiv2_shift;
p_clk->postdiv2_width = clks[i].postdiv2_width;
p_clk->ctrl_reg2 = base + clks[i].ctrl_reg2;
p_clk->fbdiv_shift = clks[i].fbdiv_shift;
p_clk->fbdiv_width = clks[i].fbdiv_width;
p_clk->refdiv_shift = clks[i].refdiv_shift;
p_clk->refdiv_width = clks[i].refdiv_width;
p_clk->hw.init = &init;
clk = clk_register(NULL, &p_clk->hw);
if (IS_ERR(clk)) {
devm_kfree(dev, p_clk);
dev_err(dev, "%s: failed to register clock %s\n",
__func__, clks[i].name);
continue;
}
data->clk_data.clks[clks[i].id] = clk;
p_clk++;
}
}
static struct hisi_clock_data *hi3559av100_clk_register(
struct platform_device *pdev)
{
struct hisi_clock_data *clk_data;
int ret;
clk_data = hisi_clk_alloc(pdev, HI3559AV100_CRG_NR_CLKS);
if (!clk_data)
return ERR_PTR(-ENOMEM);
ret = hisi_clk_register_fixed_rate(hi3559av100_fixed_rate_clks_crg,
ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), clk_data);
if (ret)
return ERR_PTR(ret);
hisi_clk_register_pll(hi3559av100_pll_clks,
ARRAY_SIZE(hi3559av100_pll_clks), clk_data, &pdev->dev);
ret = hisi_clk_register_mux(hi3559av100_mux_clks_crg,
ARRAY_SIZE(hi3559av100_mux_clks_crg), clk_data);
if (ret)
goto unregister_fixed_rate;
ret = hisi_clk_register_gate(hi3559av100_gate_clks,
ARRAY_SIZE(hi3559av100_gate_clks), clk_data);
if (ret)
goto unregister_mux;
ret = of_clk_add_provider(pdev->dev.of_node,
of_clk_src_onecell_get, &clk_data->clk_data);
if (ret)
goto unregister_gate;
return clk_data;
unregister_gate:
hisi_clk_unregister_gate(hi3559av100_gate_clks,
ARRAY_SIZE(hi3559av100_gate_clks), clk_data);
unregister_mux:
hisi_clk_unregister_mux(hi3559av100_mux_clks_crg,
ARRAY_SIZE(hi3559av100_mux_clks_crg), clk_data);
unregister_fixed_rate:
hisi_clk_unregister_fixed_rate(hi3559av100_fixed_rate_clks_crg,
ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), clk_data);
return ERR_PTR(ret);
}
static void hi3559av100_clk_unregister(struct platform_device *pdev)
{
struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
of_clk_del_provider(pdev->dev.of_node);
hisi_clk_unregister_gate(hi3559av100_gate_clks,
ARRAY_SIZE(hi3559av100_gate_clks), crg->clk_data);
hisi_clk_unregister_mux(hi3559av100_mux_clks_crg,
ARRAY_SIZE(hi3559av100_mux_clks_crg), crg->clk_data);
hisi_clk_unregister_fixed_rate(hi3559av100_fixed_rate_clks_crg,
ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), crg->clk_data);
}
static const struct hisi_crg_funcs hi3559av100_crg_funcs = {
.register_clks = hi3559av100_clk_register,
.unregister_clks = hi3559av100_clk_unregister,
};
static struct hisi_fixed_rate_clock hi3559av100_shub_fixed_rate_clks[] = {
{ HI3559AV100_SHUB_SOURCE_SOC_24M, "clk_source_24M", NULL, 0, 24000000UL, },
{ HI3559AV100_SHUB_SOURCE_SOC_200M, "clk_source_200M", NULL, 0, 200000000UL, },
{ HI3559AV100_SHUB_SOURCE_SOC_300M, "clk_source_300M", NULL, 0, 300000000UL, },
{ HI3559AV100_SHUB_SOURCE_PLL, "clk_source_PLL", NULL, 0, 192000000UL, },
{ HI3559AV100_SHUB_I2C0_CLK, "clk_shub_i2c0", NULL, 0, 48000000UL, },
{ HI3559AV100_SHUB_I2C1_CLK, "clk_shub_i2c1", NULL, 0, 48000000UL, },
{ HI3559AV100_SHUB_I2C2_CLK, "clk_shub_i2c2", NULL, 0, 48000000UL, },
{ HI3559AV100_SHUB_I2C3_CLK, "clk_shub_i2c3", NULL, 0, 48000000UL, },
{ HI3559AV100_SHUB_I2C4_CLK, "clk_shub_i2c4", NULL, 0, 48000000UL, },
{ HI3559AV100_SHUB_I2C5_CLK, "clk_shub_i2c5", NULL, 0, 48000000UL, },
{ HI3559AV100_SHUB_I2C6_CLK, "clk_shub_i2c6", NULL, 0, 48000000UL, },
{ HI3559AV100_SHUB_I2C7_CLK, "clk_shub_i2c7", NULL, 0, 48000000UL, },
{ HI3559AV100_SHUB_UART_CLK_32K, "clk_uart_32K", NULL, 0, 32000UL, },
};
/* shub mux clk */
static u32 shub_source_clk_mux_table[] = {0, 1, 2, 3};
static const char *shub_source_clk_mux_p[] = {
"clk_source_24M", "clk_source_200M", "clk_source_300M", "clk_source_PLL"
};
static u32 shub_uart_source_clk_mux_table[] = {0, 1, 2, 3};
static const char *shub_uart_source_clk_mux_p[] = {
"clk_uart_32K", "clk_uart_div_clk", "clk_uart_div_clk", "clk_source_24M"
};
static struct hisi_mux_clock hi3559av100_shub_mux_clks[] = {
{
HI3559AV100_SHUB_SOURCE_CLK, "shub_clk", shub_source_clk_mux_p,
ARRAY_SIZE(shub_source_clk_mux_p),
0, 0x0, 0, 2, 0, shub_source_clk_mux_table,
},
{
HI3559AV100_SHUB_UART_SOURCE_CLK, "shub_uart_source_clk",
shub_uart_source_clk_mux_p, ARRAY_SIZE(shub_uart_source_clk_mux_p),
0, 0x1c, 28, 2, 0, shub_uart_source_clk_mux_table,
},
};
/* shub div clk */
static struct clk_div_table shub_spi_clk_table[] = {{0, 8}, {1, 4}, {2, 2}, {/*sentinel*/}};
static struct clk_div_table shub_uart_div_clk_table[] = {{1, 8}, {2, 4}, {/*sentinel*/}};
static struct hisi_divider_clock hi3559av100_shub_div_clks[] = {
{ HI3559AV100_SHUB_SPI_SOURCE_CLK, "clk_spi_clk", "shub_clk", 0, 0x20, 24, 2,
CLK_DIVIDER_ALLOW_ZERO, shub_spi_clk_table,
},
{ HI3559AV100_SHUB_UART_DIV_CLK, "clk_uart_div_clk", "shub_clk", 0, 0x1c, 28, 2,
CLK_DIVIDER_ALLOW_ZERO, shub_uart_div_clk_table,
},
};
/* shub gate clk */
static struct hisi_gate_clock hi3559av100_shub_gate_clks[] = {
{
HI3559AV100_SHUB_SPI0_CLK, "clk_shub_spi0", "clk_spi_clk",
0, 0x20, 1, 0,
},
{
HI3559AV100_SHUB_SPI1_CLK, "clk_shub_spi1", "clk_spi_clk",
0, 0x20, 5, 0,
},
{
HI3559AV100_SHUB_SPI2_CLK, "clk_shub_spi2", "clk_spi_clk",
0, 0x20, 9, 0,
},
{
HI3559AV100_SHUB_UART0_CLK, "clk_shub_uart0", "shub_uart_source_clk",
0, 0x1c, 1, 0,
},
{
HI3559AV100_SHUB_UART1_CLK, "clk_shub_uart1", "shub_uart_source_clk",
0, 0x1c, 5, 0,
},
{
HI3559AV100_SHUB_UART2_CLK, "clk_shub_uart2", "shub_uart_source_clk",
0, 0x1c, 9, 0,
},
{
HI3559AV100_SHUB_UART3_CLK, "clk_shub_uart3", "shub_uart_source_clk",
0, 0x1c, 13, 0,
},
{
HI3559AV100_SHUB_UART4_CLK, "clk_shub_uart4", "shub_uart_source_clk",
0, 0x1c, 17, 0,
},
{
HI3559AV100_SHUB_UART5_CLK, "clk_shub_uart5", "shub_uart_source_clk",
0, 0x1c, 21, 0,
},
{
HI3559AV100_SHUB_UART6_CLK, "clk_shub_uart6", "shub_uart_source_clk",
0, 0x1c, 25, 0,
},
{
HI3559AV100_SHUB_EDMAC_CLK, "clk_shub_dmac", "shub_clk",
0, 0x24, 4, 0,
},
};
static int hi3559av100_shub_default_clk_set(void)
{
void __iomem *crg_base;
unsigned int val;
crg_base = ioremap(CRG_BASE_ADDR, SZ_4K);
/* SSP: 192M/2 */
val = readl_relaxed(crg_base + 0x20);
val |= (0x2 << 24);
writel_relaxed(val, crg_base + 0x20);
/* UART: 192M/8 */
val = readl_relaxed(crg_base + 0x1C);
val |= (0x1 << 28);
writel_relaxed(val, crg_base + 0x1C);
iounmap(crg_base);
crg_base = NULL;
return 0;
}
static struct hisi_clock_data *hi3559av100_shub_clk_register(
struct platform_device *pdev)
{
struct hisi_clock_data *clk_data = NULL;
int ret;
hi3559av100_shub_default_clk_set();
clk_data = hisi_clk_alloc(pdev, HI3559AV100_SHUB_NR_CLKS);
if (!clk_data)
return ERR_PTR(-ENOMEM);
ret = hisi_clk_register_fixed_rate(hi3559av100_shub_fixed_rate_clks,
ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), clk_data);
if (ret)
return ERR_PTR(ret);
ret = hisi_clk_register_mux(hi3559av100_shub_mux_clks,
ARRAY_SIZE(hi3559av100_shub_mux_clks), clk_data);
if (ret)
goto unregister_fixed_rate;
ret = hisi_clk_register_divider(hi3559av100_shub_div_clks,
ARRAY_SIZE(hi3559av100_shub_div_clks), clk_data);
if (ret)
goto unregister_mux;
ret = hisi_clk_register_gate(hi3559av100_shub_gate_clks,
ARRAY_SIZE(hi3559av100_shub_gate_clks), clk_data);
if (ret)
goto unregister_factor;
ret = of_clk_add_provider(pdev->dev.of_node,
of_clk_src_onecell_get, &clk_data->clk_data);
if (ret)
goto unregister_gate;
return clk_data;
unregister_gate:
hisi_clk_unregister_gate(hi3559av100_shub_gate_clks,
ARRAY_SIZE(hi3559av100_shub_gate_clks), clk_data);
unregister_factor:
hisi_clk_unregister_divider(hi3559av100_shub_div_clks,
ARRAY_SIZE(hi3559av100_shub_div_clks), clk_data);
unregister_mux:
hisi_clk_unregister_mux(hi3559av100_shub_mux_clks,
ARRAY_SIZE(hi3559av100_shub_mux_clks), clk_data);
unregister_fixed_rate:
hisi_clk_unregister_fixed_rate(hi3559av100_shub_fixed_rate_clks,
ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), clk_data);
return ERR_PTR(ret);
}
static void hi3559av100_shub_clk_unregister(struct platform_device *pdev)
{
struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
of_clk_del_provider(pdev->dev.of_node);
hisi_clk_unregister_gate(hi3559av100_shub_gate_clks,
ARRAY_SIZE(hi3559av100_shub_gate_clks), crg->clk_data);
hisi_clk_unregister_divider(hi3559av100_shub_div_clks,
ARRAY_SIZE(hi3559av100_shub_div_clks), crg->clk_data);
hisi_clk_unregister_mux(hi3559av100_shub_mux_clks,
ARRAY_SIZE(hi3559av100_shub_mux_clks), crg->clk_data);
hisi_clk_unregister_fixed_rate(hi3559av100_shub_fixed_rate_clks,
ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), crg->clk_data);
}
static const struct hisi_crg_funcs hi3559av100_shub_crg_funcs = {
.register_clks = hi3559av100_shub_clk_register,
.unregister_clks = hi3559av100_shub_clk_unregister,
};
static const struct of_device_id hi3559av100_crg_match_table[] = {
{
.compatible = "hisilicon,hi3559av100-clock",
.data = &hi3559av100_crg_funcs
},
{
.compatible = "hisilicon,hi3559av100-shub-clock",
.data = &hi3559av100_shub_crg_funcs
},
{ }
};
MODULE_DEVICE_TABLE(of, hi3559av100_crg_match_table);
static int hi3559av100_crg_probe(struct platform_device *pdev)
{
struct hisi_crg_dev *crg;
crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL);
if (!crg)
return -ENOMEM;
crg->funcs = of_device_get_match_data(&pdev->dev);
if (!crg->funcs)
return -ENOENT;
crg->rstc = hisi_reset_init(pdev);
if (!crg->rstc)
return -ENOMEM;
crg->clk_data = crg->funcs->register_clks(pdev);
if (IS_ERR(crg->clk_data)) {
hisi_reset_exit(crg->rstc);
return PTR_ERR(crg->clk_data);
}
platform_set_drvdata(pdev, crg);
return 0;
}
static void hi3559av100_crg_remove(struct platform_device *pdev)
{
struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
hisi_reset_exit(crg->rstc);
crg->funcs->unregister_clks(pdev);
}
static struct platform_driver hi3559av100_crg_driver = {
.probe = hi3559av100_crg_probe,
.remove_new = hi3559av100_crg_remove,
.driver = {
.name = "hi3559av100-clock",
.of_match_table = hi3559av100_crg_match_table,
},
};
static int __init hi3559av100_crg_init(void)
{
return platform_driver_register(&hi3559av100_crg_driver);
}
core_initcall(hi3559av100_crg_init);
static void __exit hi3559av100_crg_exit(void)
{
platform_driver_unregister(&hi3559av100_crg_driver);
}
module_exit(hi3559av100_crg_exit);
MODULE_DESCRIPTION("HiSilicon Hi3559AV100 CRG Driver");
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