Introduce clk implementation for i.MX8MM, including pll configuration, ccm configuration. Mostly will be done clk dm driver, but such as DRAM part, we still use non clk dm driver, because we have limited sram.
Signed-off-by: Peng Fan peng.fan@nxp.com --- arch/arm/include/asm/arch-imx8m/clock.h | 2 + arch/arm/include/asm/arch-imx8m/clock_imx8mm.h | 387 +++++++++++++++++++++++++ arch/arm/mach-imx/imx8m/Makefile | 1 + arch/arm/mach-imx/imx8m/clock_imx8mm.c | 306 +++++++++++++++++++ arch/arm/mach-imx/imx8m/clock_slice.c | 63 ++++ 5 files changed, 759 insertions(+) create mode 100644 arch/arm/include/asm/arch-imx8m/clock_imx8mm.h create mode 100644 arch/arm/mach-imx/imx8m/clock_imx8mm.c
diff --git a/arch/arm/include/asm/arch-imx8m/clock.h b/arch/arm/include/asm/arch-imx8m/clock.h index 80245a2f2d..dded6e0797 100644 --- a/arch/arm/include/asm/arch-imx8m/clock.h +++ b/arch/arm/include/asm/arch-imx8m/clock.h @@ -9,6 +9,8 @@
#ifdef CONFIG_IMX8MQ #include <asm/arch/clock_imx8mq.h> +#elif defined(CONFIG_IMX8MM) +#include <asm/arch/clock_imx8mm.h> #else #error "Error no clock.h" #endif diff --git a/arch/arm/include/asm/arch-imx8m/clock_imx8mm.h b/arch/arm/include/asm/arch-imx8m/clock_imx8mm.h new file mode 100644 index 0000000000..305514a4ec --- /dev/null +++ b/arch/arm/include/asm/arch-imx8m/clock_imx8mm.h @@ -0,0 +1,387 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2018-2019 NXP + * + * Peng Fan peng.fan@nxp.com + */ + +#ifndef _ASM_ARCH_IMX8MM_CLOCK_H +#define _ASM_ARCH_IMX8MM_CLOCK_H + +#define PLL_1443X_RATE(_rate, _m, _p, _s, _k) \ + { \ + .rate = (_rate), \ + .mdiv = (_m), \ + .pdiv = (_p), \ + .sdiv = (_s), \ + .kdiv = (_k), \ + } + +#define LOCK_STATUS BIT(31) +#define LOCK_SEL_MASK BIT(29) +#define CLKE_MASK BIT(11) +#define RST_MASK BIT(9) +#define BYPASS_MASK BIT(4) +#define MDIV_SHIFT 12 +#define MDIV_MASK GENMASK(21, 12) +#define PDIV_SHIFT 4 +#define PDIV_MASK GENMASK(9, 4) +#define SDIV_SHIFT 0 +#define SDIV_MASK GENMASK(2, 0) +#define KDIV_SHIFT 0 +#define KDIV_MASK GENMASK(15, 0) + +struct imx_int_pll_rate_table { + u32 rate; + int mdiv; + int pdiv; + int sdiv; + int kdiv; +}; + +enum pll_clocks { + ANATOP_ARM_PLL, + ANATOP_VPU_PLL, + ANATOP_GPU_PLL, + ANATOP_SYSTEM_PLL1, + ANATOP_SYSTEM_PLL2, + ANATOP_SYSTEM_PLL3, + ANATOP_AUDIO_PLL1, + ANATOP_AUDIO_PLL2, + ANATOP_VIDEO_PLL, + ANATOP_DRAM_PLL, +}; + +enum clk_root_index { + ARM_A53_CLK_ROOT = 0, + ARM_M4_CLK_ROOT = 1, + VPU_A53_CLK_ROOT = 2, + GPU3D_CLK_ROOT = 3, + GPU2D_CLK_ROOT = 4, + MAIN_AXI_CLK_ROOT = 16, + ENET_AXI_CLK_ROOT = 17, + NAND_USDHC_BUS_CLK_ROOT = 18, + VPU_BUS_CLK_ROOT = 19, + DISPLAY_AXI_CLK_ROOT = 20, + DISPLAY_APB_CLK_ROOT = 21, + DISPLAY_RTRM_CLK_ROOT = 22, + USB_BUS_CLK_ROOT = 23, + GPU_AXI_CLK_ROOT = 24, + GPU_AHB_CLK_ROOT = 25, + NOC_CLK_ROOT = 26, + NOC_APB_CLK_ROOT = 27, + AHB_CLK_ROOT = 32, + IPG_CLK_ROOT = 33, + AUDIO_AHB_CLK_ROOT = 34, + MIPI_DSI_ESC_RX_CLK_ROOT = 36, + DRAM_SEL_CFG = 48, + CORE_SEL_CFG = 49, + DRAM_ALT_CLK_ROOT = 64, + DRAM_APB_CLK_ROOT = 65, + VPU_G1_CLK_ROOT = 66, + VPU_G2_CLK_ROOT = 67, + DISPLAY_DTRC_CLK_ROOT = 68, + DISPLAY_DC8000_CLK_ROOT = 69, + PCIE_CTRL_CLK_ROOT = 70, + PCIE_PHY_CLK_ROOT = 71, + PCIE_AUX_CLK_ROOT = 72, + DC_PIXEL_CLK_ROOT = 73, + LCDIF_PIXEL_CLK_ROOT = 74, + SAI1_CLK_ROOT = 75, + SAI2_CLK_ROOT = 76, + SAI3_CLK_ROOT = 77, + SAI4_CLK_ROOT = 78, + SAI5_CLK_ROOT = 79, + SAI6_CLK_ROOT = 80, + SPDIF1_CLK_ROOT = 81, + SPDIF2_CLK_ROOT = 82, + ENET_REF_CLK_ROOT = 83, + ENET_TIMER_CLK_ROOT = 84, + ENET_PHY_REF_CLK_ROOT = 85, + NAND_CLK_ROOT = 86, + QSPI_CLK_ROOT = 87, + USDHC1_CLK_ROOT = 88, + USDHC2_CLK_ROOT = 89, + I2C1_CLK_ROOT = 90, + I2C2_CLK_ROOT = 91, + I2C3_CLK_ROOT = 92, + I2C4_CLK_ROOT = 93, + UART1_CLK_ROOT = 94, + UART2_CLK_ROOT = 95, + UART3_CLK_ROOT = 96, + UART4_CLK_ROOT = 97, + USB_CORE_REF_CLK_ROOT = 98, + USB_PHY_REF_CLK_ROOT = 99, + GIC_CLK_ROOT = 100, + ECSPI1_CLK_ROOT = 101, + ECSPI2_CLK_ROOT = 102, + PWM1_CLK_ROOT = 103, + PWM2_CLK_ROOT = 104, + PWM3_CLK_ROOT = 105, + PWM4_CLK_ROOT = 106, + GPT1_CLK_ROOT = 107, + GPT2_CLK_ROOT = 108, + GPT3_CLK_ROOT = 109, + GPT4_CLK_ROOT = 110, + GPT5_CLK_ROOT = 111, + GPT6_CLK_ROOT = 112, + TRACE_CLK_ROOT = 113, + WDOG_CLK_ROOT = 114, + WRCLK_CLK_ROOT = 115, + IPP_DO_CLKO1 = 116, + IPP_DO_CLKO2 = 117, + MIPI_DSI_CORE_CLK_ROOT = 118, + MIPI_DSI_PHY_REF_CLK_ROOT = 119, + MIPI_DSI_DBI_CLK_ROOT = 120, + USDHC3_CLK_ROOT = 121, + MIPI_CSI1_CORE_CLK_ROOT = 122, + MIPI_CSI1_PHY_REF_CLK_ROOT = 123, + MIPI_CSI1_ESC_CLK_ROOT = 124, + MIPI_CSI2_CORE_CLK_ROOT = 125, + MIPI_CSI2_PHY_REF_CLK_ROOT = 126, + MIPI_CSI2_ESC_CLK_ROOT = 127, + PCIE2_CTRL_CLK_ROOT = 128, + PCIE2_PHY_CLK_ROOT = 129, + PCIE2_AUX_CLK_ROOT = 130, + ECSPI3_CLK_ROOT = 131, + PDM_CLK_ROOT = 132, + VPU_H1_CLK_ROOT = 133, + CLK_ROOT_MAX, +}; + +enum clk_root_src { + OSC_24M_CLK, + ARM_PLL_CLK, + DRAM_PLL1_CLK, + VIDEO_PLL2_CLK, + VPU_PLL_CLK, + GPU_PLL_CLK, + SYSTEM_PLL1_800M_CLK, + SYSTEM_PLL1_400M_CLK, + SYSTEM_PLL1_266M_CLK, + SYSTEM_PLL1_200M_CLK, + SYSTEM_PLL1_160M_CLK, + SYSTEM_PLL1_133M_CLK, + SYSTEM_PLL1_100M_CLK, + SYSTEM_PLL1_80M_CLK, + SYSTEM_PLL1_40M_CLK, + SYSTEM_PLL2_1000M_CLK, + SYSTEM_PLL2_500M_CLK, + SYSTEM_PLL2_333M_CLK, + SYSTEM_PLL2_250M_CLK, + SYSTEM_PLL2_200M_CLK, + SYSTEM_PLL2_166M_CLK, + SYSTEM_PLL2_125M_CLK, + SYSTEM_PLL2_100M_CLK, + SYSTEM_PLL2_50M_CLK, + SYSTEM_PLL3_CLK, + AUDIO_PLL1_CLK, + AUDIO_PLL2_CLK, + VIDEO_PLL_CLK, + OSC_32K_CLK, + EXT_CLK_1, + EXT_CLK_2, + EXT_CLK_3, + EXT_CLK_4, + OSC_HDMI_CLK +}; + +enum clk_ccgr_index { + CCGR_DVFS = 0, + CCGR_ANAMIX = 1, + CCGR_CPU = 2, + CCGR_CSU = 3, + CCGR_DEBUG = 4, + CCGR_DDR1 = 5, + CCGR_ECSPI1 = 7, + CCGR_ECSPI2 = 8, + CCGR_ECSPI3 = 9, + CCGR_ENET1 = 10, + CCGR_GPIO1 = 11, + CCGR_GPIO2 = 12, + CCGR_GPIO3 = 13, + CCGR_GPIO4 = 14, + CCGR_GPIO5 = 15, + CCGR_GPT1 = 16, + CCGR_GPT2 = 17, + CCGR_GPT3 = 18, + CCGR_GPT4 = 19, + CCGR_GPT5 = 20, + CCGR_GPT6 = 21, + CCGR_HS = 22, + CCGR_I2C1 = 23, + CCGR_I2C2 = 24, + CCGR_I2C3 = 25, + CCGR_I2C4 = 26, + CCGR_IOMUX = 27, + CCGR_IOMUX1 = 28, + CCGR_IOMUX2 = 29, + CCGR_IOMUX3 = 30, + CCGR_IOMUX4 = 31, + CCGR_SNVSMIX_IPG_CLK = 32, + CCGR_MU = 33, + CCGR_OCOTP = 34, + CCGR_OCRAM = 35, + CCGR_OCRAM_S = 36, + CCGR_PCIE = 37, + CCGR_PERFMON1 = 38, + CCGR_PERFMON2 = 39, + CCGR_PWM1 = 40, + CCGR_PWM2 = 41, + CCGR_PWM3 = 42, + CCGR_PWM4 = 43, + CCGR_QOS = 44, + CCGR_QOS_DISPMIX = 45, + CCGR_QOS_ETHENET = 46, + CCGR_QSPI = 47, + CCGR_RAWNAND = 48, + CCGR_RDC = 49, + CCGR_ROM = 50, + CCGR_SAI1 = 51, + CCGR_SAI2 = 52, + CCGR_SAI3 = 53, + CCGR_SAI4 = 54, + CCGR_SAI5 = 55, + CCGR_SAI6 = 56, + CCGR_SCTR = 57, + CCGR_SDMA1 = 58, + CCGR_SDMA2 = 59, + CCGR_SEC_DEBUG = 60, + CCGR_SEMA1 = 61, + CCGR_SEMA2 = 62, + CCGR_SIM_DISPLAY = 63, + CCGR_SIM_ENET = 64, + CCGR_SIM_M = 65, + CCGR_SIM_MAIN = 66, + CCGR_SIM_S = 67, + CCGR_SIM_WAKEUP = 68, + CCGR_SIM_HSIO = 69, + CCGR_SIM_VPU = 70, + CCGR_SNVS = 71, + CCGR_TRACE = 72, + CCGR_UART1 = 73, + CCGR_UART2 = 74, + CCGR_UART3 = 75, + CCGR_UART4 = 76, + CCGR_USB_MSCALE_PL301 = 77, + CCGR_GPU3D = 79, + CCGR_USDHC1 = 81, + CCGR_USDHC2 = 82, + CCGR_WDOG1 = 83, + CCGR_WDOG2 = 84, + CCGR_WDOG3 = 85, + CCGR_VPUG1 = 86, + CCGR_GPU_BUS = 87, + CCGR_VPUH1 = 89, + CCGR_VPUG2 = 90, + CCGR_PDM = 91, + CCGR_GIC = 92, + CCGR_DISPMIX = 93, + CCGR_USDHC3 = 94, + CCGR_SDMA3 = 95, + CCGR_XTAL = 96, + CCGR_PLL = 97, + CCGR_TEMP_SENSOR = 98, + CCGR_VPUMIX_BUS = 99, + CCGR_GPU2D = 102, + CCGR_MAX +}; + +enum clk_src_index { + CLK_SRC_CKIL_SYNC_REQ = 0, + CLK_SRC_ARM_PLL_EN = 1, + CLK_SRC_GPU_PLL_EN = 2, + CLK_SRC_VPU_PLL_EN = 3, + CLK_SRC_DRAM_PLL_EN = 4, + CLK_SRC_SYSTEM_PLL1_EN = 5, + CLK_SRC_SYSTEM_PLL2_EN = 6, + CLK_SRC_SYSTEM_PLL3_EN = 7, + CLK_SRC_AUDIO_PLL1_EN = 8, + CLK_SRC_AUDIO_PLL2_EN = 9, + CLK_SRC_VIDEO_PLL1_EN = 10, + CLK_SRC_RESERVED = 11, + CLK_SRC_ARM_PLL = 12, + CLK_SRC_GPU_PLL = 13, + CLK_SRC_VPU_PLL = 14, + CLK_SRC_DRAM_PLL = 15, + CLK_SRC_SYSTEM_PLL1_800M = 16, + CLK_SRC_SYSTEM_PLL1_400M = 17, + CLK_SRC_SYSTEM_PLL1_266M = 18, + CLK_SRC_SYSTEM_PLL1_200M = 19, + CLK_SRC_SYSTEM_PLL1_160M = 20, + CLK_SRC_SYSTEM_PLL1_133M = 21, + CLK_SRC_SYSTEM_PLL1_100M = 22, + CLK_SRC_SYSTEM_PLL1_80M = 23, + CLK_SRC_SYSTEM_PLL1_40M = 24, + CLK_SRC_SYSTEM_PLL2_1000M = 25, + CLK_SRC_SYSTEM_PLL2_500M = 26, + CLK_SRC_SYSTEM_PLL2_333M = 27, + CLK_SRC_SYSTEM_PLL2_250M = 28, + CLK_SRC_SYSTEM_PLL2_200M = 29, + CLK_SRC_SYSTEM_PLL2_166M = 30, + CLK_SRC_SYSTEM_PLL2_125M = 31, + CLK_SRC_SYSTEM_PLL2_100M = 32, + CLK_SRC_SYSTEM_PLL2_50M = 33, + CLK_SRC_SYSTEM_PLL3 = 34, + CLK_SRC_AUDIO_PLL1 = 35, + CLK_SRC_AUDIO_PLL2 = 36, + CLK_SRC_VIDEO_PLL1 = 37, +}; + +#define INTPLL_LOCK_MASK BIT(31) +#define INTPLL_LOCK_SEL_MASK BIT(29) +#define INTPLL_EXT_BYPASS_MASK BIT(28) +#define INTPLL_DIV20_CLKE_MASK BIT(27) +#define INTPLL_DIV20_CLKE_OVERRIDE_MASK BIT(26) +#define INTPLL_DIV10_CLKE_MASK BIT(25) +#define INTPLL_DIV10_CLKE_OVERRIDE_MASK BIT(24) +#define INTPLL_DIV8_CLKE_MASK BIT(23) +#define INTPLL_DIV8_CLKE_OVERRIDE_MASK BIT(22) +#define INTPLL_DIV6_CLKE_MASK BIT(21) +#define INTPLL_DIV6_CLKE_OVERRIDE_MASK BIT(20) +#define INTPLL_DIV5_CLKE_MASK BIT(19) +#define INTPLL_DIV5_CLKE_OVERRIDE_MASK BIT(18) +#define INTPLL_DIV4_CLKE_MASK BIT(17) +#define INTPLL_DIV4_CLKE_OVERRIDE_MASK BIT(16) +#define INTPLL_DIV3_CLKE_MASK BIT(15) +#define INTPLL_DIV3_CLKE_OVERRIDE_MASK BIT(14) +#define INTPLL_DIV2_CLKE_MASK BIT(13) +#define INTPLL_DIV2_CLKE_OVERRIDE_MASK BIT(12) +#define INTPLL_CLKE_MASK BIT(11) +#define INTPLL_CLKE_OVERRIDE_MASK BIT(10) +#define INTPLL_RST_MASK BIT(9) +#define INTPLL_RST_OVERRIDE_MASK BIT(8) +#define INTPLL_BYPASS_MASK BIT(4) +#define INTPLL_PAD_CLK_SEL_MASK GENMASK(3, 2) +#define INTPLL_REF_CLK_SEL_MASK GENMASK(1, 0) + +#define INTPLL_MAIN_DIV_MASK GENMASK(21, 12) +#define INTPLL_MAIN_DIV_VAL(n) ((n << 12) & GENMASK(21, 12)) +#define INTPLL_MAIN_DIV_SHIFT 12 +#define INTPLL_PRE_DIV_MASK GENMASK(9, 4) +#define INTPLL_PRE_DIV_VAL(n) ((n << 4) & GENMASK(9, 4)) +#define INTPLL_PRE_DIV_SHIFT 4 +#define INTPLL_POST_DIV_MASK GENMASK(2, 0) +#define INTPLL_POST_DIV_VAL(n) ((n << 0) & GENMASK(2, 0)) +#define INTPLL_POST_DIV_SHIFT 0 + +#define INTPLL_LOCK_CON_DLY_MASK GENMASK(5, 4) +#define INTPLL_LOCK_CON_DLY_SHIFT 4 +#define INTPLL_LOCK_CON_OUT_MASK GENMASK(3, 2) +#define INTPLL_LOCK_CON_OUT_SHIFT 2 +#define INTPLL_LOCK_CON_IN_MASK GENMASK(1, 0) +#define INTPLL_LOCK_CON_IN_SHIFT 0 + +#define INTPLL_LRD_EN_MASK BIT(21) +#define INTPLL_FOUT_MASK BIT(20) +#define INTPLL_AFC_SEL_MASK BIT(19) +#define INTPLL_PBIAS_CTRL_MASK BIT(18) +#define INTPLL_PBIAS_CTRL_EN_MASK BIT(17) +#define INTPLL_AFCINIT_SEL_MASK BIT(16) +#define INTPLL_FSEL_MASK BIT(14) +#define INTPLL_FEED_EN_MASK BIT(13) +#define INTPLL_EXTAFC_MASK GENMASK(7, 3) +#define INTPLL_AFC_EN_MASK BIT(2) +#define INTPLL_ICP_MASK GENMASK(1, 0) + +#endif diff --git a/arch/arm/mach-imx/imx8m/Makefile b/arch/arm/mach-imx/imx8m/Makefile index 42a1544c6b..92184f3135 100644 --- a/arch/arm/mach-imx/imx8m/Makefile +++ b/arch/arm/mach-imx/imx8m/Makefile @@ -5,3 +5,4 @@ obj-y += lowlevel_init.o obj-y += clock_slice.o soc.o obj-$(CONFIG_IMX8MQ) += clock_imx8mq.o +obj-$(CONFIG_IMX8MM) += clock_imx8mm.o diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mm.c b/arch/arm/mach-imx/imx8m/clock_imx8mm.c new file mode 100644 index 0000000000..ee44ba75fe --- /dev/null +++ b/arch/arm/mach-imx/imx8m/clock_imx8mm.c @@ -0,0 +1,306 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2018-2019 NXP + * + * Peng Fan peng.fan@nxp.com + */ + +#include <common.h> +#include <asm/arch/clock.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/sys_proto.h> +#include <asm/io.h> +#include <clk.h> +#include <clk-uclass.h> +#include <dt-bindings/clock/imx8mm-clock.h> +#include <div64.h> +#include <errno.h> + +DECLARE_GLOBAL_DATA_PTR; + +static struct anamix_pll *ana_pll = (struct anamix_pll *)ANATOP_BASE_ADDR; + +void enable_ocotp_clk(unsigned char enable) +{ + struct clk *clkp; + int ret; + + ret = clk_get_by_id(IMX8MM_CLK_OCOTP_ROOT, &clkp); + if (ret) { + printf("%s: err: %d\n", __func__, ret); + return; + } + + enable ? clk_enable(clkp) : clk_disable(clkp); +} + +int enable_i2c_clk(unsigned char enable, unsigned i2c_num) +{ + struct clk *clkp; + int ret; + + ret = clk_get_by_id(IMX8MM_CLK_I2C1_ROOT + i2c_num, &clkp); + if (ret) { + printf("%s: err: %d\n", __func__, ret); + return ret; + } + + return enable ? clk_enable(clkp) : clk_disable(clkp); +} + +#ifdef CONFIG_SPL_BUILD +static struct imx_int_pll_rate_table imx8mm_fracpll_tbl[] = { + PLL_1443X_RATE(800000000U, 300, 9, 0, 0), + PLL_1443X_RATE(750000000U, 250, 8, 0, 0), + PLL_1443X_RATE(650000000U, 325, 3, 2, 0), + PLL_1443X_RATE(600000000U, 300, 3, 2, 0), + PLL_1443X_RATE(594000000U, 99, 1, 2, 0), + PLL_1443X_RATE(400000000U, 300, 9, 1, 0), + PLL_1443X_RATE(266666667U, 400, 9, 2, 0), + PLL_1443X_RATE(167000000U, 334, 3, 4, 0), + PLL_1443X_RATE(100000000U, 300, 9, 3, 0), +}; + +int fracpll_configure(enum pll_clocks pll, u32 freq) +{ + int i; + u32 tmp, div_val; + void *pll_base; + struct imx_int_pll_rate_table *rate; + + for (i = 0; i < ARRAY_SIZE(imx8mm_fracpll_tbl); i++) { + if (freq == imx8mm_fracpll_tbl[i].rate) + break; + } + + if (i == ARRAY_SIZE(imx8mm_fracpll_tbl)) { + printf("No matched freq table %u\n", freq); + return -EINVAL; + } + + rate = &imx8mm_fracpll_tbl[i]; + + switch (pll) { + case ANATOP_DRAM_PLL: + setbits_le32(GPC_BASE_ADDR + 0xEC, 1 << 7); + setbits_le32(GPC_BASE_ADDR + 0xF8, 1 << 5); + writel(SRC_DDR1_ENABLE_MASK, SRC_BASE_ADDR + 0x1004); + + pll_base = &ana_pll->dram_pll_gnrl_ctl; + break; + case ANATOP_VIDEO_PLL: + pll_base = &ana_pll->video_pll1_gnrl_ctl; + break; + default: + return 0; + } + /* Bypass clock and set lock to pll output lock */ + tmp = readl(pll_base); + tmp |= BYPASS_MASK; + writel(tmp, pll_base); + + /* Enable RST */ + tmp &= ~RST_MASK; + writel(tmp, pll_base); + + div_val = (rate->mdiv << MDIV_SHIFT) | (rate->pdiv << PDIV_SHIFT) | + (rate->sdiv << SDIV_SHIFT); + writel(div_val, pll_base + 4); + writel(rate->kdiv << KDIV_SHIFT, pll_base + 8); + + __udelay(100); + + /* Disable RST */ + tmp |= RST_MASK; + writel(tmp, pll_base); + + /* Wait Lock*/ + while (!(readl(pll_base) & LOCK_STATUS)) + ; + + /* Bypass */ + tmp &= ~BYPASS_MASK; + writel(tmp, pll_base); + + return 0; +} + +void dram_pll_init(ulong pll_val) +{ + fracpll_configure(ANATOP_DRAM_PLL, pll_val); +} + +static struct dram_bypass_clk_setting imx8mm_dram_bypass_tbl[] = { + DRAM_BYPASS_ROOT_CONFIG(MHZ(100), 2, CLK_ROOT_PRE_DIV1, 2, + CLK_ROOT_PRE_DIV2), + DRAM_BYPASS_ROOT_CONFIG(MHZ(250), 3, CLK_ROOT_PRE_DIV2, 2, + CLK_ROOT_PRE_DIV2), + DRAM_BYPASS_ROOT_CONFIG(MHZ(400), 1, CLK_ROOT_PRE_DIV2, 3, + CLK_ROOT_PRE_DIV2), +}; + +void dram_enable_bypass(ulong clk_val) +{ + int i; + struct dram_bypass_clk_setting *config; + + for (i = 0; i < ARRAY_SIZE(imx8mm_dram_bypass_tbl); i++) { + if (clk_val == imx8mm_dram_bypass_tbl[i].clk) + break; + } + + if (i == ARRAY_SIZE(imx8mm_dram_bypass_tbl)) { + printf("No matched freq table %lu\n", clk_val); + return; + } + + config = &imx8mm_dram_bypass_tbl[i]; + + clock_set_target_val(DRAM_ALT_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(config->alt_root_sel) | + CLK_ROOT_PRE_DIV(config->alt_pre_div)); + clock_set_target_val(DRAM_APB_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(config->apb_root_sel) | + CLK_ROOT_PRE_DIV(config->apb_pre_div)); + clock_set_target_val(DRAM_SEL_CFG, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(1)); +} + +void dram_disable_bypass(void) +{ + clock_set_target_val(DRAM_SEL_CFG, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(0)); + clock_set_target_val(DRAM_APB_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(4) | + CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV5)); +} +#endif + +void init_uart_clk(u32 index) +{ + /* + * set uart clock root + * 24M OSC + */ + switch (index) { + case 0: + clock_enable(CCGR_UART1, 0); + clock_set_target_val(UART1_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(0)); + clock_enable(CCGR_UART1, 1); + return; + case 1: + clock_enable(CCGR_UART2, 0); + clock_set_target_val(UART2_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(0)); + clock_enable(CCGR_UART2, 1); + return; + case 2: + clock_enable(CCGR_UART3, 0); + clock_set_target_val(UART3_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(0)); + clock_enable(CCGR_UART3, 1); + return; + case 3: + clock_enable(CCGR_UART4, 0); + clock_set_target_val(UART4_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(0)); + clock_enable(CCGR_UART4, 1); + return; + default: + printf("Invalid uart index\n"); + return; + } +} + +void init_wdog_clk(void) +{ + clock_enable(CCGR_WDOG1, 0); + clock_enable(CCGR_WDOG2, 0); + clock_enable(CCGR_WDOG3, 0); + clock_set_target_val(WDOG_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(0)); + clock_enable(CCGR_WDOG1, 1); + clock_enable(CCGR_WDOG2, 1); + clock_enable(CCGR_WDOG3, 1); +} + +int clock_init(void) +{ + u32 val_cfg0; + + /* + * The gate is not exported to clk tree, so configure them here. + * According to ANAMIX SPEC + * sys pll1 fixed at 800MHz + * sys pll2 fixed at 1GHz + * Here we only enable the outputs. + */ + val_cfg0 = readl(&ana_pll->sys_pll1_gnrl_ctl); + val_cfg0 |= INTPLL_CLKE_MASK | INTPLL_DIV2_CLKE_MASK | + INTPLL_DIV3_CLKE_MASK | INTPLL_DIV4_CLKE_MASK | + INTPLL_DIV5_CLKE_MASK | INTPLL_DIV6_CLKE_MASK | + INTPLL_DIV8_CLKE_MASK | INTPLL_DIV10_CLKE_MASK | + INTPLL_DIV20_CLKE_MASK; + writel(val_cfg0, &ana_pll->sys_pll1_gnrl_ctl); + + val_cfg0 = readl(&ana_pll->sys_pll2_gnrl_ctl); + val_cfg0 |= INTPLL_CLKE_MASK | INTPLL_DIV2_CLKE_MASK | + INTPLL_DIV3_CLKE_MASK | INTPLL_DIV4_CLKE_MASK | + INTPLL_DIV5_CLKE_MASK | INTPLL_DIV6_CLKE_MASK | + INTPLL_DIV8_CLKE_MASK | INTPLL_DIV10_CLKE_MASK | + INTPLL_DIV20_CLKE_MASK; + writel(val_cfg0, &ana_pll->sys_pll2_gnrl_ctl); + + /* config GIC to sys_pll2_100m */ + clock_enable(CCGR_GIC, 0); + clock_set_target_val(GIC_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(3)); + clock_enable(CCGR_GIC, 1); + + clock_set_target_val(NAND_USDHC_BUS_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(1)); + + clock_enable(CCGR_DDR1, 0); + clock_set_target_val(DRAM_ALT_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(1)); + clock_set_target_val(DRAM_APB_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(1)); + clock_enable(CCGR_DDR1, 1); + + init_wdog_clk(); + + clock_enable(CCGR_TEMP_SENSOR, 1); + + clock_enable(CCGR_SEC_DEBUG, 1); + + return 0; +}; + +u32 imx_get_uartclk(void) +{ + return 24000000U; +} + +u32 mxc_get_clock(enum mxc_clock clk) +{ + struct clk *clkp; + int ret; + + switch (clk) { + case MXC_IPG_CLK: + ret = clk_get_by_id(IMX8MM_CLK_IPG_ROOT, &clkp); + if (ret) + return 0; + return clk_get_rate(clkp); + case MXC_ARM_CLK: + ret = clk_get_by_id(IMX8MM_CLK_A53_DIV, &clkp); + if (ret) + return 0; + return clk_get_rate(clkp); + default: + printf("%s: %d not supported\n", __func__, clk); + } + + return 0; +} diff --git a/arch/arm/mach-imx/imx8m/clock_slice.c b/arch/arm/mach-imx/imx8m/clock_slice.c index 1a67c626f1..780f64314d 100644 --- a/arch/arm/mach-imx/imx8m/clock_slice.c +++ b/arch/arm/mach-imx/imx8m/clock_slice.c @@ -13,6 +13,7 @@
static struct ccm_reg *ccm_reg = (struct ccm_reg *)CCM_BASE_ADDR;
+#ifdef CONFIG_IMX8MQ static struct clk_root_map root_array[] = { {ARM_A53_CLK_ROOT, CORE_CLOCK_SLICE, 0, {OSC_25M_CLK, ARM_PLL_CLK, SYSTEM_PLL2_500M_CLK, @@ -474,6 +475,68 @@ static struct clk_root_map root_array[] = { {DRAM_PLL1_CLK} }, }; +#elif defined(CONFIG_IMX8MM) +static struct clk_root_map root_array[] = { + {NAND_USDHC_BUS_CLK_ROOT, BUS_CLOCK_SLICE, 2, + {OSC_24M_CLK, SYSTEM_PLL1_266M_CLK, SYSTEM_PLL1_800M_CLK, + SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_133M_CLK, + SYSTEM_PLL3_CLK, SYSTEM_PLL2_250M_CLK, AUDIO_PLL1_CLK} + }, + {NOC_CLK_ROOT, BUS_CLOCK_SLICE, 10, + {OSC_24M_CLK, SYSTEM_PLL1_800M_CLK, SYSTEM_PLL3_CLK, + SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL2_500M_CLK, + AUDIO_PLL1_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK} + }, + {NOC_APB_CLK_ROOT, BUS_CLOCK_SLICE, 11, + {OSC_24M_CLK, SYSTEM_PLL1_400M_CLK, SYSTEM_PLL3_CLK, + SYSTEM_PLL2_333M_CLK, SYSTEM_PLL2_200M_CLK, + SYSTEM_PLL1_800M_CLK, AUDIO_PLL1_CLK, VIDEO_PLL_CLK} + }, + {DRAM_ALT_CLK_ROOT, IP_CLOCK_SLICE, 0, + {OSC_24M_CLK, SYSTEM_PLL1_800M_CLK, SYSTEM_PLL1_100M_CLK, + SYSTEM_PLL2_500M_CLK, SYSTEM_PLL2_1000M_CLK, + SYSTEM_PLL3_CLK, AUDIO_PLL1_CLK, SYSTEM_PLL1_266M_CLK} + }, + {DRAM_APB_CLK_ROOT, IP_CLOCK_SLICE, 1, + {OSC_24M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_40M_CLK, + SYSTEM_PLL1_160M_CLK, SYSTEM_PLL1_800M_CLK, + SYSTEM_PLL3_CLK, SYSTEM_PLL2_250M_CLK, AUDIO_PLL2_CLK} + }, + {UART1_CLK_ROOT, IP_CLOCK_SLICE, 30, + {OSC_24M_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_200M_CLK, + SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK, + EXT_CLK_2, EXT_CLK_4, AUDIO_PLL2_CLK} + }, + {UART2_CLK_ROOT, IP_CLOCK_SLICE, 31, + {OSC_24M_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_200M_CLK, + SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK, + EXT_CLK_2, EXT_CLK_3, AUDIO_PLL2_CLK} + }, + {UART3_CLK_ROOT, IP_CLOCK_SLICE, 32, + {OSC_24M_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_200M_CLK, + SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK, + EXT_CLK_2, EXT_CLK_4, AUDIO_PLL2_CLK} + }, + {UART4_CLK_ROOT, IP_CLOCK_SLICE, 33, + {OSC_24M_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_200M_CLK, + SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK, + EXT_CLK_2, EXT_CLK_3, AUDIO_PLL2_CLK} + }, + {GIC_CLK_ROOT, IP_CLOCK_SLICE, 36, + {OSC_24M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_40M_CLK, + SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_800M_CLK, + EXT_CLK_2, EXT_CLK_4, AUDIO_PLL2_CLK} + }, + {WDOG_CLK_ROOT, IP_CLOCK_SLICE, 50, + {OSC_24M_CLK, SYSTEM_PLL1_133M_CLK, SYSTEM_PLL1_160M_CLK, + VPU_PLL_CLK, SYSTEM_PLL2_125M_CLK, + SYSTEM_PLL3_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_166M_CLK} + }, + {DRAM_SEL_CFG, DRAM_SEL_CLOCK_SLICE, 0, + {DRAM_PLL1_CLK} + }, +}; +#endif
static int select(enum clk_root_index clock_id) {