# Copyright 2017 NXP
obj-y += lowlevel_init.o
-obj-y += clock.o clock_slice.o soc.o
+obj-y += clock_slice.o soc.o
+obj-$(CONFIG_IMX8MQ) += clock_imx8mq.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2017 NXP
- *
- * Peng Fan <peng.fan@nxp.com>
- */
-
-#include <common.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/imx-regs.h>
-#include <asm/io.h>
-#include <asm/arch/sys_proto.h>
-#include <errno.h>
-#include <linux/iopoll.h>
-
-static struct anamix_pll *ana_pll = (struct anamix_pll *)ANATOP_BASE_ADDR;
-
-static u32 decode_frac_pll(enum clk_root_src frac_pll)
-{
- u32 pll_cfg0, pll_cfg1, pllout;
- u32 pll_refclk_sel, pll_refclk;
- u32 divr_val, divq_val, divf_val, divff, divfi;
- u32 pllout_div_shift, pllout_div_mask, pllout_div;
-
- switch (frac_pll) {
- case ARM_PLL_CLK:
- pll_cfg0 = readl(&ana_pll->arm_pll_cfg0);
- pll_cfg1 = readl(&ana_pll->arm_pll_cfg1);
- pllout_div_shift = HW_FRAC_ARM_PLL_DIV_SHIFT;
- pllout_div_mask = HW_FRAC_ARM_PLL_DIV_MASK;
- break;
- default:
- printf("Frac PLL %d not supporte\n", frac_pll);
- return 0;
- }
-
- pllout_div = readl(&ana_pll->frac_pllout_div_cfg);
- pllout_div = (pllout_div & pllout_div_mask) >> pllout_div_shift;
-
- /* Power down */
- if (pll_cfg0 & FRAC_PLL_PD_MASK)
- return 0;
-
- /* output not enabled */
- if ((pll_cfg0 & FRAC_PLL_CLKE_MASK) == 0)
- return 0;
-
- pll_refclk_sel = pll_cfg0 & FRAC_PLL_REFCLK_SEL_MASK;
-
- if (pll_refclk_sel == FRAC_PLL_REFCLK_SEL_OSC_25M)
- pll_refclk = 25000000u;
- else if (pll_refclk_sel == FRAC_PLL_REFCLK_SEL_OSC_27M)
- pll_refclk = 27000000u;
- else if (pll_refclk_sel == FRAC_PLL_REFCLK_SEL_HDMI_PHY_27M)
- pll_refclk = 27000000u;
- else
- pll_refclk = 0;
-
- if (pll_cfg0 & FRAC_PLL_BYPASS_MASK)
- return pll_refclk;
-
- divr_val = (pll_cfg0 & FRAC_PLL_REFCLK_DIV_VAL_MASK) >>
- FRAC_PLL_REFCLK_DIV_VAL_SHIFT;
- divq_val = pll_cfg0 & FRAC_PLL_OUTPUT_DIV_VAL_MASK;
-
- divff = (pll_cfg1 & FRAC_PLL_FRAC_DIV_CTL_MASK) >>
- FRAC_PLL_FRAC_DIV_CTL_SHIFT;
- divfi = pll_cfg1 & FRAC_PLL_INT_DIV_CTL_MASK;
-
- divf_val = 1 + divfi + divff / (1 << 24);
-
- pllout = pll_refclk / (divr_val + 1) * 8 * divf_val /
- ((divq_val + 1) * 2);
-
- return pllout / (pllout_div + 1);
-}
-
-static u32 decode_sscg_pll(enum clk_root_src sscg_pll)
-{
- u32 pll_cfg0, pll_cfg1, pll_cfg2;
- u32 pll_refclk_sel, pll_refclk;
- u32 divr1, divr2, divf1, divf2, divq, div;
- u32 sse;
- u32 pll_clke;
- u32 pllout_div_shift, pllout_div_mask, pllout_div;
- u32 pllout;
-
- switch (sscg_pll) {
- case SYSTEM_PLL1_800M_CLK:
- case SYSTEM_PLL1_400M_CLK:
- case SYSTEM_PLL1_266M_CLK:
- case SYSTEM_PLL1_200M_CLK:
- case SYSTEM_PLL1_160M_CLK:
- case SYSTEM_PLL1_133M_CLK:
- case SYSTEM_PLL1_100M_CLK:
- case SYSTEM_PLL1_80M_CLK:
- case SYSTEM_PLL1_40M_CLK:
- pll_cfg0 = readl(&ana_pll->sys_pll1_cfg0);
- pll_cfg1 = readl(&ana_pll->sys_pll1_cfg1);
- pll_cfg2 = readl(&ana_pll->sys_pll1_cfg2);
- pllout_div_shift = HW_SSCG_SYSTEM_PLL1_DIV_SHIFT;
- pllout_div_mask = HW_SSCG_SYSTEM_PLL1_DIV_MASK;
- break;
- case SYSTEM_PLL2_1000M_CLK:
- case SYSTEM_PLL2_500M_CLK:
- case SYSTEM_PLL2_333M_CLK:
- case SYSTEM_PLL2_250M_CLK:
- case SYSTEM_PLL2_200M_CLK:
- case SYSTEM_PLL2_166M_CLK:
- case SYSTEM_PLL2_125M_CLK:
- case SYSTEM_PLL2_100M_CLK:
- case SYSTEM_PLL2_50M_CLK:
- pll_cfg0 = readl(&ana_pll->sys_pll2_cfg0);
- pll_cfg1 = readl(&ana_pll->sys_pll2_cfg1);
- pll_cfg2 = readl(&ana_pll->sys_pll2_cfg2);
- pllout_div_shift = HW_SSCG_SYSTEM_PLL2_DIV_SHIFT;
- pllout_div_mask = HW_SSCG_SYSTEM_PLL2_DIV_MASK;
- break;
- case SYSTEM_PLL3_CLK:
- pll_cfg0 = readl(&ana_pll->sys_pll3_cfg0);
- pll_cfg1 = readl(&ana_pll->sys_pll3_cfg1);
- pll_cfg2 = readl(&ana_pll->sys_pll3_cfg2);
- pllout_div_shift = HW_SSCG_SYSTEM_PLL3_DIV_SHIFT;
- pllout_div_mask = HW_SSCG_SYSTEM_PLL3_DIV_MASK;
- break;
- case DRAM_PLL1_CLK:
- pll_cfg0 = readl(&ana_pll->dram_pll_cfg0);
- pll_cfg1 = readl(&ana_pll->dram_pll_cfg1);
- pll_cfg2 = readl(&ana_pll->dram_pll_cfg2);
- pllout_div_shift = HW_SSCG_DRAM_PLL_DIV_SHIFT;
- pllout_div_mask = HW_SSCG_DRAM_PLL_DIV_MASK;
- break;
- default:
- printf("sscg pll %d not supporte\n", sscg_pll);
- return 0;
- }
-
- switch (sscg_pll) {
- case DRAM_PLL1_CLK:
- pll_clke = SSCG_PLL_DRAM_PLL_CLKE_MASK;
- div = 1;
- break;
- case SYSTEM_PLL3_CLK:
- pll_clke = SSCG_PLL_PLL3_CLKE_MASK;
- div = 1;
- break;
- case SYSTEM_PLL2_1000M_CLK:
- case SYSTEM_PLL1_800M_CLK:
- pll_clke = SSCG_PLL_CLKE_MASK;
- div = 1;
- break;
- case SYSTEM_PLL2_500M_CLK:
- case SYSTEM_PLL1_400M_CLK:
- pll_clke = SSCG_PLL_DIV2_CLKE_MASK;
- div = 2;
- break;
- case SYSTEM_PLL2_333M_CLK:
- case SYSTEM_PLL1_266M_CLK:
- pll_clke = SSCG_PLL_DIV3_CLKE_MASK;
- div = 3;
- break;
- case SYSTEM_PLL2_250M_CLK:
- case SYSTEM_PLL1_200M_CLK:
- pll_clke = SSCG_PLL_DIV4_CLKE_MASK;
- div = 4;
- break;
- case SYSTEM_PLL2_200M_CLK:
- case SYSTEM_PLL1_160M_CLK:
- pll_clke = SSCG_PLL_DIV5_CLKE_MASK;
- div = 5;
- break;
- case SYSTEM_PLL2_166M_CLK:
- case SYSTEM_PLL1_133M_CLK:
- pll_clke = SSCG_PLL_DIV6_CLKE_MASK;
- div = 6;
- break;
- case SYSTEM_PLL2_125M_CLK:
- case SYSTEM_PLL1_100M_CLK:
- pll_clke = SSCG_PLL_DIV8_CLKE_MASK;
- div = 8;
- break;
- case SYSTEM_PLL2_100M_CLK:
- case SYSTEM_PLL1_80M_CLK:
- pll_clke = SSCG_PLL_DIV10_CLKE_MASK;
- div = 10;
- break;
- case SYSTEM_PLL2_50M_CLK:
- case SYSTEM_PLL1_40M_CLK:
- pll_clke = SSCG_PLL_DIV20_CLKE_MASK;
- div = 20;
- break;
- default:
- printf("sscg pll %d not supporte\n", sscg_pll);
- return 0;
- }
-
- /* Power down */
- if (pll_cfg0 & SSCG_PLL_PD_MASK)
- return 0;
-
- /* output not enabled */
- if ((pll_cfg0 & pll_clke) == 0)
- return 0;
-
- pllout_div = readl(&ana_pll->sscg_pllout_div_cfg);
- pllout_div = (pllout_div & pllout_div_mask) >> pllout_div_shift;
-
- pll_refclk_sel = pll_cfg0 & SSCG_PLL_REFCLK_SEL_MASK;
-
- if (pll_refclk_sel == SSCG_PLL_REFCLK_SEL_OSC_25M)
- pll_refclk = 25000000u;
- else if (pll_refclk_sel == SSCG_PLL_REFCLK_SEL_OSC_27M)
- pll_refclk = 27000000u;
- else if (pll_refclk_sel == SSCG_PLL_REFCLK_SEL_HDMI_PHY_27M)
- pll_refclk = 27000000u;
- else
- pll_refclk = 0;
-
- /* We assume bypass1/2 are the same value */
- if ((pll_cfg0 & SSCG_PLL_BYPASS1_MASK) ||
- (pll_cfg0 & SSCG_PLL_BYPASS2_MASK))
- return pll_refclk;
-
- divr1 = (pll_cfg2 & SSCG_PLL_REF_DIVR1_MASK) >>
- SSCG_PLL_REF_DIVR1_SHIFT;
- divr2 = (pll_cfg2 & SSCG_PLL_REF_DIVR2_MASK) >>
- SSCG_PLL_REF_DIVR2_SHIFT;
- divf1 = (pll_cfg2 & SSCG_PLL_FEEDBACK_DIV_F1_MASK) >>
- SSCG_PLL_FEEDBACK_DIV_F1_SHIFT;
- divf2 = (pll_cfg2 & SSCG_PLL_FEEDBACK_DIV_F2_MASK) >>
- SSCG_PLL_FEEDBACK_DIV_F2_SHIFT;
- divq = (pll_cfg2 & SSCG_PLL_OUTPUT_DIV_VAL_MASK) >>
- SSCG_PLL_OUTPUT_DIV_VAL_SHIFT;
- sse = pll_cfg1 & SSCG_PLL_SSE_MASK;
-
- if (sse)
- sse = 8;
- else
- sse = 2;
-
- pllout = pll_refclk / (divr1 + 1) * sse * (divf1 + 1) /
- (divr2 + 1) * (divf2 + 1) / (divq + 1);
-
- return pllout / (pllout_div + 1) / div;
-}
-
-static u32 get_root_src_clk(enum clk_root_src root_src)
-{
- switch (root_src) {
- case OSC_25M_CLK:
- return 25000000;
- case OSC_27M_CLK:
- return 27000000;
- case OSC_32K_CLK:
- return 32768;
- case ARM_PLL_CLK:
- return decode_frac_pll(root_src);
- case SYSTEM_PLL1_800M_CLK:
- case SYSTEM_PLL1_400M_CLK:
- case SYSTEM_PLL1_266M_CLK:
- case SYSTEM_PLL1_200M_CLK:
- case SYSTEM_PLL1_160M_CLK:
- case SYSTEM_PLL1_133M_CLK:
- case SYSTEM_PLL1_100M_CLK:
- case SYSTEM_PLL1_80M_CLK:
- case SYSTEM_PLL1_40M_CLK:
- case SYSTEM_PLL2_1000M_CLK:
- case SYSTEM_PLL2_500M_CLK:
- case SYSTEM_PLL2_333M_CLK:
- case SYSTEM_PLL2_250M_CLK:
- case SYSTEM_PLL2_200M_CLK:
- case SYSTEM_PLL2_166M_CLK:
- case SYSTEM_PLL2_125M_CLK:
- case SYSTEM_PLL2_100M_CLK:
- case SYSTEM_PLL2_50M_CLK:
- case SYSTEM_PLL3_CLK:
- return decode_sscg_pll(root_src);
- default:
- return 0;
- }
-
- return 0;
-}
-
-static u32 get_root_clk(enum clk_root_index clock_id)
-{
- enum clk_root_src root_src;
- u32 post_podf, pre_podf, root_src_clk;
-
- if (clock_root_enabled(clock_id) <= 0)
- return 0;
-
- if (clock_get_prediv(clock_id, &pre_podf) < 0)
- return 0;
-
- if (clock_get_postdiv(clock_id, &post_podf) < 0)
- return 0;
-
- if (clock_get_src(clock_id, &root_src) < 0)
- return 0;
-
- root_src_clk = get_root_src_clk(root_src);
-
- return root_src_clk / (post_podf + 1) / (pre_podf + 1);
-}
-
-#ifdef CONFIG_MXC_OCOTP
-void enable_ocotp_clk(unsigned char enable)
-{
- clock_enable(CCGR_OCOTP, !!enable);
-}
-#endif
-
-int enable_i2c_clk(unsigned char enable, unsigned int i2c_num)
-{
- /* 0 - 3 is valid i2c num */
- if (i2c_num > 3)
- return -EINVAL;
-
- clock_enable(CCGR_I2C1 + i2c_num, !!enable);
-
- return 0;
-}
-
-unsigned int mxc_get_clock(enum clk_root_index clk)
-{
- u32 val;
-
- if (clk >= CLK_ROOT_MAX)
- return 0;
-
- if (clk == MXC_ARM_CLK)
- return get_root_clk(ARM_A53_CLK_ROOT);
-
- if (clk == MXC_IPG_CLK) {
- clock_get_target_val(IPG_CLK_ROOT, &val);
- val = val & 0x3;
- return get_root_clk(AHB_CLK_ROOT) / (val + 1);
- }
-
- return get_root_clk(clk);
-}
-
-u32 imx_get_uartclk(void)
-{
- return mxc_get_clock(UART1_CLK_ROOT);
-}
-
-void mxs_set_lcdclk(u32 base_addr, u32 freq)
-{
- /*
- * LCDIF_PIXEL_CLK: select 800MHz root clock,
- * select pre divider 8, output is 100 MHz
- */
- clock_set_target_val(LCDIF_PIXEL_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(4) |
- CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV8));
-}
-
-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_set_target_val(WDOG_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(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);
-}
-
-void init_usb_clk(void)
-{
- if (!is_usb_boot()) {
- clock_enable(CCGR_USB_CTRL1, 0);
- clock_enable(CCGR_USB_CTRL2, 0);
- clock_enable(CCGR_USB_PHY1, 0);
- clock_enable(CCGR_USB_PHY2, 0);
- /* 500MHz */
- clock_set_target_val(USB_BUS_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1));
- /* 100MHz */
- clock_set_target_val(USB_CORE_REF_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1));
- /* 100MHz */
- clock_set_target_val(USB_PHY_REF_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1));
- clock_enable(CCGR_USB_CTRL1, 1);
- clock_enable(CCGR_USB_CTRL2, 1);
- clock_enable(CCGR_USB_PHY1, 1);
- clock_enable(CCGR_USB_PHY2, 1);
- }
-}
-
-void init_uart_clk(u32 index)
-{
- /* Set uart clock root 25M 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_clk_usdhc(u32 index)
-{
- /*
- * set usdhc clock root
- * sys pll1 400M
- */
- switch (index) {
- case 0:
- clock_enable(CCGR_USDHC1, 0);
- clock_set_target_val(USDHC1_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1) |
- CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
- clock_enable(CCGR_USDHC1, 1);
- return;
- case 1:
- clock_enable(CCGR_USDHC2, 0);
- clock_set_target_val(USDHC2_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1) |
- CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
- clock_enable(CCGR_USDHC2, 1);
- return;
- default:
- printf("Invalid usdhc index\n");
- return;
- }
-}
-
-int set_clk_qspi(void)
-{
- /*
- * set qspi root
- * sys pll1 100M
- */
- clock_enable(CCGR_QSPI, 0);
- clock_set_target_val(QSPI_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(7));
- clock_enable(CCGR_QSPI, 1);
-
- return 0;
-}
-
-#ifdef CONFIG_FEC_MXC
-int set_clk_enet(enum enet_freq type)
-{
- u32 target;
- u32 enet1_ref;
-
- switch (type) {
- case ENET_125MHZ:
- enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_125M_CLK;
- break;
- case ENET_50MHZ:
- enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_50M_CLK;
- break;
- case ENET_25MHZ:
- enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK;
- break;
- default:
- return -EINVAL;
- }
-
- /* disable the clock first */
- clock_enable(CCGR_ENET1, 0);
- clock_enable(CCGR_SIM_ENET, 0);
-
- /* set enet axi clock 266Mhz */
- target = CLK_ROOT_ON | ENET_AXI_CLK_ROOT_FROM_SYS1_PLL_266M |
- CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
- CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
- clock_set_target_val(ENET_AXI_CLK_ROOT, target);
-
- target = CLK_ROOT_ON | enet1_ref |
- CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
- CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
- clock_set_target_val(ENET_REF_CLK_ROOT, target);
-
- target = CLK_ROOT_ON |
- ENET1_TIME_CLK_ROOT_FROM_PLL_ENET_MAIN_100M_CLK |
- CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
- CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4);
- clock_set_target_val(ENET_TIMER_CLK_ROOT, target);
-
- /* enable clock */
- clock_enable(CCGR_SIM_ENET, 1);
- clock_enable(CCGR_ENET1, 1);
-
- return 0;
-}
-#endif
-
-u32 imx_get_fecclk(void)
-{
- return get_root_clk(ENET_AXI_CLK_ROOT);
-}
-
-static struct dram_bypass_clk_setting imx8mq_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(imx8mq_dram_bypass_tbl); i++) {
- if (clk_val == imx8mq_dram_bypass_tbl[i].clk)
- break;
- }
-
- if (i == ARRAY_SIZE(imx8mq_dram_bypass_tbl)) {
- printf("No matched freq table %lu\n", clk_val);
- return;
- }
-
- config = &imx8mq_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));
-}
-
-#ifdef CONFIG_SPL_BUILD
-void dram_pll_init(ulong pll_val)
-{
- u32 val;
- void __iomem *pll_control_reg = &ana_pll->dram_pll_cfg0;
- void __iomem *pll_cfg_reg2 = &ana_pll->dram_pll_cfg2;
-
- /* Bypass */
- setbits_le32(pll_control_reg, SSCG_PLL_BYPASS1_MASK);
- setbits_le32(pll_control_reg, SSCG_PLL_BYPASS2_MASK);
-
- switch (pll_val) {
- case MHZ(800):
- val = readl(pll_cfg_reg2);
- val &= ~(SSCG_PLL_OUTPUT_DIV_VAL_MASK |
- SSCG_PLL_FEEDBACK_DIV_F2_MASK |
- SSCG_PLL_FEEDBACK_DIV_F1_MASK |
- SSCG_PLL_REF_DIVR2_MASK);
- val |= SSCG_PLL_OUTPUT_DIV_VAL(0);
- val |= SSCG_PLL_FEEDBACK_DIV_F2_VAL(11);
- val |= SSCG_PLL_FEEDBACK_DIV_F1_VAL(39);
- val |= SSCG_PLL_REF_DIVR2_VAL(29);
- writel(val, pll_cfg_reg2);
- break;
- case MHZ(600):
- val = readl(pll_cfg_reg2);
- val &= ~(SSCG_PLL_OUTPUT_DIV_VAL_MASK |
- SSCG_PLL_FEEDBACK_DIV_F2_MASK |
- SSCG_PLL_FEEDBACK_DIV_F1_MASK |
- SSCG_PLL_REF_DIVR2_MASK);
- val |= SSCG_PLL_OUTPUT_DIV_VAL(1);
- val |= SSCG_PLL_FEEDBACK_DIV_F2_VAL(17);
- val |= SSCG_PLL_FEEDBACK_DIV_F1_VAL(39);
- val |= SSCG_PLL_REF_DIVR2_VAL(29);
- writel(val, pll_cfg_reg2);
- break;
- case MHZ(400):
- val = readl(pll_cfg_reg2);
- val &= ~(SSCG_PLL_OUTPUT_DIV_VAL_MASK |
- SSCG_PLL_FEEDBACK_DIV_F2_MASK |
- SSCG_PLL_FEEDBACK_DIV_F1_MASK |
- SSCG_PLL_REF_DIVR2_MASK);
- val |= SSCG_PLL_OUTPUT_DIV_VAL(1);
- val |= SSCG_PLL_FEEDBACK_DIV_F2_VAL(11);
- val |= SSCG_PLL_FEEDBACK_DIV_F1_VAL(39);
- val |= SSCG_PLL_REF_DIVR2_VAL(29);
- writel(val, pll_cfg_reg2);
- break;
- case MHZ(167):
- val = readl(pll_cfg_reg2);
- val &= ~(SSCG_PLL_OUTPUT_DIV_VAL_MASK |
- SSCG_PLL_FEEDBACK_DIV_F2_MASK |
- SSCG_PLL_FEEDBACK_DIV_F1_MASK |
- SSCG_PLL_REF_DIVR2_MASK);
- val |= SSCG_PLL_OUTPUT_DIV_VAL(3);
- val |= SSCG_PLL_FEEDBACK_DIV_F2_VAL(8);
- val |= SSCG_PLL_FEEDBACK_DIV_F1_VAL(45);
- val |= SSCG_PLL_REF_DIVR2_VAL(30);
- writel(val, pll_cfg_reg2);
- break;
- default:
- break;
- }
-
- /* Clear power down bit */
- clrbits_le32(pll_control_reg, SSCG_PLL_PD_MASK);
- /* Eanble ARM_PLL/SYS_PLL */
- setbits_le32(pll_control_reg, SSCG_PLL_DRAM_PLL_CLKE_MASK);
-
- /* Clear bypass */
- clrbits_le32(pll_control_reg, SSCG_PLL_BYPASS1_MASK);
- __udelay(100);
- clrbits_le32(pll_control_reg, SSCG_PLL_BYPASS2_MASK);
- /* Wait lock */
- while (!(readl(pll_control_reg) & SSCG_PLL_LOCK_MASK))
- ;
-}
-
-int frac_pll_init(u32 pll, enum frac_pll_out_val val)
-{
- void __iomem *pll_cfg0, __iomem *pll_cfg1;
- u32 val_cfg0, val_cfg1;
- int ret;
-
- switch (pll) {
- case ANATOP_ARM_PLL:
- pll_cfg0 = &ana_pll->arm_pll_cfg0;
- pll_cfg1 = &ana_pll->arm_pll_cfg1;
-
- if (val == FRAC_PLL_OUT_1000M)
- val_cfg1 = FRAC_PLL_INT_DIV_CTL_VAL(49);
- else
- val_cfg1 = FRAC_PLL_INT_DIV_CTL_VAL(79);
- val_cfg0 = FRAC_PLL_CLKE_MASK | FRAC_PLL_REFCLK_SEL_OSC_25M |
- FRAC_PLL_LOCK_SEL_MASK | FRAC_PLL_NEWDIV_VAL_MASK |
- FRAC_PLL_REFCLK_DIV_VAL(4) |
- FRAC_PLL_OUTPUT_DIV_VAL(0);
- break;
- default:
- return -EINVAL;
- }
-
- /* bypass the clock */
- setbits_le32(pll_cfg0, FRAC_PLL_BYPASS_MASK);
- /* Set the value */
- writel(val_cfg1, pll_cfg1);
- writel(val_cfg0 | FRAC_PLL_BYPASS_MASK, pll_cfg0);
- val_cfg0 = readl(pll_cfg0);
- /* unbypass the clock */
- clrbits_le32(pll_cfg0, FRAC_PLL_BYPASS_MASK);
- ret = readl_poll_timeout(pll_cfg0, val_cfg0,
- val_cfg0 & FRAC_PLL_LOCK_MASK, 1);
- if (ret)
- printf("%s timeout\n", __func__);
- clrbits_le32(pll_cfg0, FRAC_PLL_NEWDIV_VAL_MASK);
-
- return 0;
-}
-
-int sscg_pll_init(u32 pll)
-{
- void __iomem *pll_cfg0, __iomem *pll_cfg1, __iomem *pll_cfg2;
- u32 val_cfg0, val_cfg1, val_cfg2, val;
- u32 bypass1_mask = 0x20, bypass2_mask = 0x10;
- int ret;
-
- switch (pll) {
- case ANATOP_SYSTEM_PLL1:
- pll_cfg0 = &ana_pll->sys_pll1_cfg0;
- pll_cfg1 = &ana_pll->sys_pll1_cfg1;
- pll_cfg2 = &ana_pll->sys_pll1_cfg2;
- /* 800MHz */
- val_cfg2 = SSCG_PLL_FEEDBACK_DIV_F1_VAL(3) |
- SSCG_PLL_FEEDBACK_DIV_F2_VAL(3);
- val_cfg1 = 0;
- val_cfg0 = SSCG_PLL_CLKE_MASK | SSCG_PLL_DIV2_CLKE_MASK |
- SSCG_PLL_DIV3_CLKE_MASK | SSCG_PLL_DIV4_CLKE_MASK |
- SSCG_PLL_DIV5_CLKE_MASK | SSCG_PLL_DIV6_CLKE_MASK |
- SSCG_PLL_DIV8_CLKE_MASK | SSCG_PLL_DIV10_CLKE_MASK |
- SSCG_PLL_DIV20_CLKE_MASK | SSCG_PLL_LOCK_SEL_MASK |
- SSCG_PLL_REFCLK_SEL_OSC_25M;
- break;
- case ANATOP_SYSTEM_PLL2:
- pll_cfg0 = &ana_pll->sys_pll2_cfg0;
- pll_cfg1 = &ana_pll->sys_pll2_cfg1;
- pll_cfg2 = &ana_pll->sys_pll2_cfg2;
- /* 1000MHz */
- val_cfg2 = SSCG_PLL_FEEDBACK_DIV_F1_VAL(3) |
- SSCG_PLL_FEEDBACK_DIV_F2_VAL(4);
- val_cfg1 = 0;
- val_cfg0 = SSCG_PLL_CLKE_MASK | SSCG_PLL_DIV2_CLKE_MASK |
- SSCG_PLL_DIV3_CLKE_MASK | SSCG_PLL_DIV4_CLKE_MASK |
- SSCG_PLL_DIV5_CLKE_MASK | SSCG_PLL_DIV6_CLKE_MASK |
- SSCG_PLL_DIV8_CLKE_MASK | SSCG_PLL_DIV10_CLKE_MASK |
- SSCG_PLL_DIV20_CLKE_MASK | SSCG_PLL_LOCK_SEL_MASK |
- SSCG_PLL_REFCLK_SEL_OSC_25M;
- break;
- case ANATOP_SYSTEM_PLL3:
- pll_cfg0 = &ana_pll->sys_pll3_cfg0;
- pll_cfg1 = &ana_pll->sys_pll3_cfg1;
- pll_cfg2 = &ana_pll->sys_pll3_cfg2;
- /* 800MHz */
- val_cfg2 = SSCG_PLL_FEEDBACK_DIV_F1_VAL(3) |
- SSCG_PLL_FEEDBACK_DIV_F2_VAL(3);
- val_cfg1 = 0;
- val_cfg0 = SSCG_PLL_PLL3_CLKE_MASK | SSCG_PLL_LOCK_SEL_MASK |
- SSCG_PLL_REFCLK_SEL_OSC_25M;
- break;
- default:
- return -EINVAL;
- }
-
- /*bypass*/
- setbits_le32(pll_cfg0, bypass1_mask | bypass2_mask);
- /* set value */
- writel(val_cfg2, pll_cfg2);
- writel(val_cfg1, pll_cfg1);
- /*unbypass1 and wait 70us */
- writel(val_cfg0 | bypass2_mask, pll_cfg1);
-
- __udelay(70);
-
- /* unbypass2 and wait lock */
- writel(val_cfg0, pll_cfg1);
- ret = readl_poll_timeout(pll_cfg0, val, val & SSCG_PLL_LOCK_MASK, 1);
- if (ret)
- printf("%s timeout\n", __func__);
-
- return ret;
-}
-
-int clock_init(void)
-{
- u32 grade;
-
- clock_set_target_val(ARM_A53_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(0));
-
- /*
- * 8MQ only supports two grades: consumer and industrial.
- * We set ARM clock to 1Ghz for consumer, 800Mhz for industrial
- */
- grade = get_cpu_temp_grade(NULL, NULL);
- if (!grade) {
- frac_pll_init(ANATOP_ARM_PLL, FRAC_PLL_OUT_1000M);
- clock_set_target_val(ARM_A53_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1) |
- CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1));
- } else {
- frac_pll_init(ANATOP_ARM_PLL, FRAC_PLL_OUT_1600M);
- clock_set_target_val(ARM_A53_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1) |
- CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
- }
- /*
- * According to ANAMIX SPEC
- * sys pll1 fixed at 800MHz
- * sys pll2 fixed at 1GHz
- * Here we only enable the outputs.
- */
- setbits_le32(&ana_pll->sys_pll1_cfg0, SSCG_PLL_CLKE_MASK |
- SSCG_PLL_DIV2_CLKE_MASK | SSCG_PLL_DIV3_CLKE_MASK |
- SSCG_PLL_DIV4_CLKE_MASK | SSCG_PLL_DIV5_CLKE_MASK |
- SSCG_PLL_DIV6_CLKE_MASK | SSCG_PLL_DIV8_CLKE_MASK |
- SSCG_PLL_DIV10_CLKE_MASK | SSCG_PLL_DIV20_CLKE_MASK);
-
- setbits_le32(&ana_pll->sys_pll2_cfg0, SSCG_PLL_CLKE_MASK |
- SSCG_PLL_DIV2_CLKE_MASK | SSCG_PLL_DIV3_CLKE_MASK |
- SSCG_PLL_DIV4_CLKE_MASK | SSCG_PLL_DIV5_CLKE_MASK |
- SSCG_PLL_DIV6_CLKE_MASK | SSCG_PLL_DIV8_CLKE_MASK |
- SSCG_PLL_DIV10_CLKE_MASK | SSCG_PLL_DIV20_CLKE_MASK);
-
- clock_set_target_val(NAND_USDHC_BUS_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1));
-
- init_wdog_clk();
- clock_enable(CCGR_TSENSOR, 1);
-
- return 0;
-}
-#endif
-
-/*
- * Dump some clockes.
- */
-#ifndef CONFIG_SPL_BUILD
-int do_imx8m_showclocks(cmd_tbl_t *cmdtp, int flag, int argc,
- char * const argv[])
-{
- u32 freq;
-
- freq = decode_frac_pll(ARM_PLL_CLK);
- printf("ARM_PLL %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL1_800M_CLK);
- printf("SYS_PLL1_800 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL1_400M_CLK);
- printf("SYS_PLL1_400 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL1_266M_CLK);
- printf("SYS_PLL1_266 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL1_200M_CLK);
- printf("SYS_PLL1_200 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL1_160M_CLK);
- printf("SYS_PLL1_160 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL1_133M_CLK);
- printf("SYS_PLL1_133 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL1_100M_CLK);
- printf("SYS_PLL1_100 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL1_80M_CLK);
- printf("SYS_PLL1_80 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL1_40M_CLK);
- printf("SYS_PLL1_40 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL2_1000M_CLK);
- printf("SYS_PLL2_1000 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL2_500M_CLK);
- printf("SYS_PLL2_500 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL2_333M_CLK);
- printf("SYS_PLL2_333 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL2_250M_CLK);
- printf("SYS_PLL2_250 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL2_200M_CLK);
- printf("SYS_PLL2_200 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL2_166M_CLK);
- printf("SYS_PLL2_166 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL2_125M_CLK);
- printf("SYS_PLL2_125 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL2_100M_CLK);
- printf("SYS_PLL2_100 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL2_50M_CLK);
- printf("SYS_PLL2_50 %8d MHz\n", freq / 1000000);
- freq = decode_sscg_pll(SYSTEM_PLL3_CLK);
- printf("SYS_PLL3 %8d MHz\n", freq / 1000000);
- freq = mxc_get_clock(UART1_CLK_ROOT);
- printf("UART1 %8d MHz\n", freq / 1000000);
- freq = mxc_get_clock(USDHC1_CLK_ROOT);
- printf("USDHC1 %8d MHz\n", freq / 1000000);
- freq = mxc_get_clock(QSPI_CLK_ROOT);
- printf("QSPI %8d MHz\n", freq / 1000000);
- return 0;
-}
-
-U_BOOT_CMD(
- clocks, CONFIG_SYS_MAXARGS, 1, do_imx8m_showclocks,
- "display clocks",
- ""
-);
-#endif
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2017 NXP
+ *
+ * Peng Fan <peng.fan@nxp.com>
+ */
+
+#include <common.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <errno.h>
+#include <linux/iopoll.h>
+
+static struct anamix_pll *ana_pll = (struct anamix_pll *)ANATOP_BASE_ADDR;
+
+static u32 decode_frac_pll(enum clk_root_src frac_pll)
+{
+ u32 pll_cfg0, pll_cfg1, pllout;
+ u32 pll_refclk_sel, pll_refclk;
+ u32 divr_val, divq_val, divf_val, divff, divfi;
+ u32 pllout_div_shift, pllout_div_mask, pllout_div;
+
+ switch (frac_pll) {
+ case ARM_PLL_CLK:
+ pll_cfg0 = readl(&ana_pll->arm_pll_cfg0);
+ pll_cfg1 = readl(&ana_pll->arm_pll_cfg1);
+ pllout_div_shift = HW_FRAC_ARM_PLL_DIV_SHIFT;
+ pllout_div_mask = HW_FRAC_ARM_PLL_DIV_MASK;
+ break;
+ default:
+ printf("Frac PLL %d not supporte\n", frac_pll);
+ return 0;
+ }
+
+ pllout_div = readl(&ana_pll->frac_pllout_div_cfg);
+ pllout_div = (pllout_div & pllout_div_mask) >> pllout_div_shift;
+
+ /* Power down */
+ if (pll_cfg0 & FRAC_PLL_PD_MASK)
+ return 0;
+
+ /* output not enabled */
+ if ((pll_cfg0 & FRAC_PLL_CLKE_MASK) == 0)
+ return 0;
+
+ pll_refclk_sel = pll_cfg0 & FRAC_PLL_REFCLK_SEL_MASK;
+
+ if (pll_refclk_sel == FRAC_PLL_REFCLK_SEL_OSC_25M)
+ pll_refclk = 25000000u;
+ else if (pll_refclk_sel == FRAC_PLL_REFCLK_SEL_OSC_27M)
+ pll_refclk = 27000000u;
+ else if (pll_refclk_sel == FRAC_PLL_REFCLK_SEL_HDMI_PHY_27M)
+ pll_refclk = 27000000u;
+ else
+ pll_refclk = 0;
+
+ if (pll_cfg0 & FRAC_PLL_BYPASS_MASK)
+ return pll_refclk;
+
+ divr_val = (pll_cfg0 & FRAC_PLL_REFCLK_DIV_VAL_MASK) >>
+ FRAC_PLL_REFCLK_DIV_VAL_SHIFT;
+ divq_val = pll_cfg0 & FRAC_PLL_OUTPUT_DIV_VAL_MASK;
+
+ divff = (pll_cfg1 & FRAC_PLL_FRAC_DIV_CTL_MASK) >>
+ FRAC_PLL_FRAC_DIV_CTL_SHIFT;
+ divfi = pll_cfg1 & FRAC_PLL_INT_DIV_CTL_MASK;
+
+ divf_val = 1 + divfi + divff / (1 << 24);
+
+ pllout = pll_refclk / (divr_val + 1) * 8 * divf_val /
+ ((divq_val + 1) * 2);
+
+ return pllout / (pllout_div + 1);
+}
+
+static u32 decode_sscg_pll(enum clk_root_src sscg_pll)
+{
+ u32 pll_cfg0, pll_cfg1, pll_cfg2;
+ u32 pll_refclk_sel, pll_refclk;
+ u32 divr1, divr2, divf1, divf2, divq, div;
+ u32 sse;
+ u32 pll_clke;
+ u32 pllout_div_shift, pllout_div_mask, pllout_div;
+ u32 pllout;
+
+ switch (sscg_pll) {
+ case SYSTEM_PLL1_800M_CLK:
+ case SYSTEM_PLL1_400M_CLK:
+ case SYSTEM_PLL1_266M_CLK:
+ case SYSTEM_PLL1_200M_CLK:
+ case SYSTEM_PLL1_160M_CLK:
+ case SYSTEM_PLL1_133M_CLK:
+ case SYSTEM_PLL1_100M_CLK:
+ case SYSTEM_PLL1_80M_CLK:
+ case SYSTEM_PLL1_40M_CLK:
+ pll_cfg0 = readl(&ana_pll->sys_pll1_cfg0);
+ pll_cfg1 = readl(&ana_pll->sys_pll1_cfg1);
+ pll_cfg2 = readl(&ana_pll->sys_pll1_cfg2);
+ pllout_div_shift = HW_SSCG_SYSTEM_PLL1_DIV_SHIFT;
+ pllout_div_mask = HW_SSCG_SYSTEM_PLL1_DIV_MASK;
+ break;
+ case SYSTEM_PLL2_1000M_CLK:
+ case SYSTEM_PLL2_500M_CLK:
+ case SYSTEM_PLL2_333M_CLK:
+ case SYSTEM_PLL2_250M_CLK:
+ case SYSTEM_PLL2_200M_CLK:
+ case SYSTEM_PLL2_166M_CLK:
+ case SYSTEM_PLL2_125M_CLK:
+ case SYSTEM_PLL2_100M_CLK:
+ case SYSTEM_PLL2_50M_CLK:
+ pll_cfg0 = readl(&ana_pll->sys_pll2_cfg0);
+ pll_cfg1 = readl(&ana_pll->sys_pll2_cfg1);
+ pll_cfg2 = readl(&ana_pll->sys_pll2_cfg2);
+ pllout_div_shift = HW_SSCG_SYSTEM_PLL2_DIV_SHIFT;
+ pllout_div_mask = HW_SSCG_SYSTEM_PLL2_DIV_MASK;
+ break;
+ case SYSTEM_PLL3_CLK:
+ pll_cfg0 = readl(&ana_pll->sys_pll3_cfg0);
+ pll_cfg1 = readl(&ana_pll->sys_pll3_cfg1);
+ pll_cfg2 = readl(&ana_pll->sys_pll3_cfg2);
+ pllout_div_shift = HW_SSCG_SYSTEM_PLL3_DIV_SHIFT;
+ pllout_div_mask = HW_SSCG_SYSTEM_PLL3_DIV_MASK;
+ break;
+ case DRAM_PLL1_CLK:
+ pll_cfg0 = readl(&ana_pll->dram_pll_cfg0);
+ pll_cfg1 = readl(&ana_pll->dram_pll_cfg1);
+ pll_cfg2 = readl(&ana_pll->dram_pll_cfg2);
+ pllout_div_shift = HW_SSCG_DRAM_PLL_DIV_SHIFT;
+ pllout_div_mask = HW_SSCG_DRAM_PLL_DIV_MASK;
+ break;
+ default:
+ printf("sscg pll %d not supporte\n", sscg_pll);
+ return 0;
+ }
+
+ switch (sscg_pll) {
+ case DRAM_PLL1_CLK:
+ pll_clke = SSCG_PLL_DRAM_PLL_CLKE_MASK;
+ div = 1;
+ break;
+ case SYSTEM_PLL3_CLK:
+ pll_clke = SSCG_PLL_PLL3_CLKE_MASK;
+ div = 1;
+ break;
+ case SYSTEM_PLL2_1000M_CLK:
+ case SYSTEM_PLL1_800M_CLK:
+ pll_clke = SSCG_PLL_CLKE_MASK;
+ div = 1;
+ break;
+ case SYSTEM_PLL2_500M_CLK:
+ case SYSTEM_PLL1_400M_CLK:
+ pll_clke = SSCG_PLL_DIV2_CLKE_MASK;
+ div = 2;
+ break;
+ case SYSTEM_PLL2_333M_CLK:
+ case SYSTEM_PLL1_266M_CLK:
+ pll_clke = SSCG_PLL_DIV3_CLKE_MASK;
+ div = 3;
+ break;
+ case SYSTEM_PLL2_250M_CLK:
+ case SYSTEM_PLL1_200M_CLK:
+ pll_clke = SSCG_PLL_DIV4_CLKE_MASK;
+ div = 4;
+ break;
+ case SYSTEM_PLL2_200M_CLK:
+ case SYSTEM_PLL1_160M_CLK:
+ pll_clke = SSCG_PLL_DIV5_CLKE_MASK;
+ div = 5;
+ break;
+ case SYSTEM_PLL2_166M_CLK:
+ case SYSTEM_PLL1_133M_CLK:
+ pll_clke = SSCG_PLL_DIV6_CLKE_MASK;
+ div = 6;
+ break;
+ case SYSTEM_PLL2_125M_CLK:
+ case SYSTEM_PLL1_100M_CLK:
+ pll_clke = SSCG_PLL_DIV8_CLKE_MASK;
+ div = 8;
+ break;
+ case SYSTEM_PLL2_100M_CLK:
+ case SYSTEM_PLL1_80M_CLK:
+ pll_clke = SSCG_PLL_DIV10_CLKE_MASK;
+ div = 10;
+ break;
+ case SYSTEM_PLL2_50M_CLK:
+ case SYSTEM_PLL1_40M_CLK:
+ pll_clke = SSCG_PLL_DIV20_CLKE_MASK;
+ div = 20;
+ break;
+ default:
+ printf("sscg pll %d not supporte\n", sscg_pll);
+ return 0;
+ }
+
+ /* Power down */
+ if (pll_cfg0 & SSCG_PLL_PD_MASK)
+ return 0;
+
+ /* output not enabled */
+ if ((pll_cfg0 & pll_clke) == 0)
+ return 0;
+
+ pllout_div = readl(&ana_pll->sscg_pllout_div_cfg);
+ pllout_div = (pllout_div & pllout_div_mask) >> pllout_div_shift;
+
+ pll_refclk_sel = pll_cfg0 & SSCG_PLL_REFCLK_SEL_MASK;
+
+ if (pll_refclk_sel == SSCG_PLL_REFCLK_SEL_OSC_25M)
+ pll_refclk = 25000000u;
+ else if (pll_refclk_sel == SSCG_PLL_REFCLK_SEL_OSC_27M)
+ pll_refclk = 27000000u;
+ else if (pll_refclk_sel == SSCG_PLL_REFCLK_SEL_HDMI_PHY_27M)
+ pll_refclk = 27000000u;
+ else
+ pll_refclk = 0;
+
+ /* We assume bypass1/2 are the same value */
+ if ((pll_cfg0 & SSCG_PLL_BYPASS1_MASK) ||
+ (pll_cfg0 & SSCG_PLL_BYPASS2_MASK))
+ return pll_refclk;
+
+ divr1 = (pll_cfg2 & SSCG_PLL_REF_DIVR1_MASK) >>
+ SSCG_PLL_REF_DIVR1_SHIFT;
+ divr2 = (pll_cfg2 & SSCG_PLL_REF_DIVR2_MASK) >>
+ SSCG_PLL_REF_DIVR2_SHIFT;
+ divf1 = (pll_cfg2 & SSCG_PLL_FEEDBACK_DIV_F1_MASK) >>
+ SSCG_PLL_FEEDBACK_DIV_F1_SHIFT;
+ divf2 = (pll_cfg2 & SSCG_PLL_FEEDBACK_DIV_F2_MASK) >>
+ SSCG_PLL_FEEDBACK_DIV_F2_SHIFT;
+ divq = (pll_cfg2 & SSCG_PLL_OUTPUT_DIV_VAL_MASK) >>
+ SSCG_PLL_OUTPUT_DIV_VAL_SHIFT;
+ sse = pll_cfg1 & SSCG_PLL_SSE_MASK;
+
+ if (sse)
+ sse = 8;
+ else
+ sse = 2;
+
+ pllout = pll_refclk / (divr1 + 1) * sse * (divf1 + 1) /
+ (divr2 + 1) * (divf2 + 1) / (divq + 1);
+
+ return pllout / (pllout_div + 1) / div;
+}
+
+static u32 get_root_src_clk(enum clk_root_src root_src)
+{
+ switch (root_src) {
+ case OSC_25M_CLK:
+ return 25000000;
+ case OSC_27M_CLK:
+ return 27000000;
+ case OSC_32K_CLK:
+ return 32768;
+ case ARM_PLL_CLK:
+ return decode_frac_pll(root_src);
+ case SYSTEM_PLL1_800M_CLK:
+ case SYSTEM_PLL1_400M_CLK:
+ case SYSTEM_PLL1_266M_CLK:
+ case SYSTEM_PLL1_200M_CLK:
+ case SYSTEM_PLL1_160M_CLK:
+ case SYSTEM_PLL1_133M_CLK:
+ case SYSTEM_PLL1_100M_CLK:
+ case SYSTEM_PLL1_80M_CLK:
+ case SYSTEM_PLL1_40M_CLK:
+ case SYSTEM_PLL2_1000M_CLK:
+ case SYSTEM_PLL2_500M_CLK:
+ case SYSTEM_PLL2_333M_CLK:
+ case SYSTEM_PLL2_250M_CLK:
+ case SYSTEM_PLL2_200M_CLK:
+ case SYSTEM_PLL2_166M_CLK:
+ case SYSTEM_PLL2_125M_CLK:
+ case SYSTEM_PLL2_100M_CLK:
+ case SYSTEM_PLL2_50M_CLK:
+ case SYSTEM_PLL3_CLK:
+ return decode_sscg_pll(root_src);
+ default:
+ return 0;
+ }
+
+ return 0;
+}
+
+static u32 get_root_clk(enum clk_root_index clock_id)
+{
+ enum clk_root_src root_src;
+ u32 post_podf, pre_podf, root_src_clk;
+
+ if (clock_root_enabled(clock_id) <= 0)
+ return 0;
+
+ if (clock_get_prediv(clock_id, &pre_podf) < 0)
+ return 0;
+
+ if (clock_get_postdiv(clock_id, &post_podf) < 0)
+ return 0;
+
+ if (clock_get_src(clock_id, &root_src) < 0)
+ return 0;
+
+ root_src_clk = get_root_src_clk(root_src);
+
+ return root_src_clk / (post_podf + 1) / (pre_podf + 1);
+}
+
+#ifdef CONFIG_MXC_OCOTP
+void enable_ocotp_clk(unsigned char enable)
+{
+ clock_enable(CCGR_OCOTP, !!enable);
+}
+#endif
+
+int enable_i2c_clk(unsigned char enable, unsigned int i2c_num)
+{
+ /* 0 - 3 is valid i2c num */
+ if (i2c_num > 3)
+ return -EINVAL;
+
+ clock_enable(CCGR_I2C1 + i2c_num, !!enable);
+
+ return 0;
+}
+
+unsigned int mxc_get_clock(enum clk_root_index clk)
+{
+ u32 val;
+
+ if (clk >= CLK_ROOT_MAX)
+ return 0;
+
+ if (clk == MXC_ARM_CLK)
+ return get_root_clk(ARM_A53_CLK_ROOT);
+
+ if (clk == MXC_IPG_CLK) {
+ clock_get_target_val(IPG_CLK_ROOT, &val);
+ val = val & 0x3;
+ return get_root_clk(AHB_CLK_ROOT) / (val + 1);
+ }
+
+ return get_root_clk(clk);
+}
+
+u32 imx_get_uartclk(void)
+{
+ return mxc_get_clock(UART1_CLK_ROOT);
+}
+
+void mxs_set_lcdclk(u32 base_addr, u32 freq)
+{
+ /*
+ * LCDIF_PIXEL_CLK: select 800MHz root clock,
+ * select pre divider 8, output is 100 MHz
+ */
+ clock_set_target_val(LCDIF_PIXEL_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(4) |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV8));
+}
+
+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_set_target_val(WDOG_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(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);
+}
+
+void init_usb_clk(void)
+{
+ if (!is_usb_boot()) {
+ clock_enable(CCGR_USB_CTRL1, 0);
+ clock_enable(CCGR_USB_CTRL2, 0);
+ clock_enable(CCGR_USB_PHY1, 0);
+ clock_enable(CCGR_USB_PHY2, 0);
+ /* 500MHz */
+ clock_set_target_val(USB_BUS_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(1));
+ /* 100MHz */
+ clock_set_target_val(USB_CORE_REF_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(1));
+ /* 100MHz */
+ clock_set_target_val(USB_PHY_REF_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(1));
+ clock_enable(CCGR_USB_CTRL1, 1);
+ clock_enable(CCGR_USB_CTRL2, 1);
+ clock_enable(CCGR_USB_PHY1, 1);
+ clock_enable(CCGR_USB_PHY2, 1);
+ }
+}
+
+void init_uart_clk(u32 index)
+{
+ /* Set uart clock root 25M 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_clk_usdhc(u32 index)
+{
+ /*
+ * set usdhc clock root
+ * sys pll1 400M
+ */
+ switch (index) {
+ case 0:
+ clock_enable(CCGR_USDHC1, 0);
+ clock_set_target_val(USDHC1_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
+ clock_enable(CCGR_USDHC1, 1);
+ return;
+ case 1:
+ clock_enable(CCGR_USDHC2, 0);
+ clock_set_target_val(USDHC2_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
+ clock_enable(CCGR_USDHC2, 1);
+ return;
+ default:
+ printf("Invalid usdhc index\n");
+ return;
+ }
+}
+
+int set_clk_qspi(void)
+{
+ /*
+ * set qspi root
+ * sys pll1 100M
+ */
+ clock_enable(CCGR_QSPI, 0);
+ clock_set_target_val(QSPI_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(7));
+ clock_enable(CCGR_QSPI, 1);
+
+ return 0;
+}
+
+#ifdef CONFIG_FEC_MXC
+int set_clk_enet(enum enet_freq type)
+{
+ u32 target;
+ u32 enet1_ref;
+
+ switch (type) {
+ case ENET_125MHZ:
+ enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_125M_CLK;
+ break;
+ case ENET_50MHZ:
+ enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_50M_CLK;
+ break;
+ case ENET_25MHZ:
+ enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* disable the clock first */
+ clock_enable(CCGR_ENET1, 0);
+ clock_enable(CCGR_SIM_ENET, 0);
+
+ /* set enet axi clock 266Mhz */
+ target = CLK_ROOT_ON | ENET_AXI_CLK_ROOT_FROM_SYS1_PLL_266M |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(ENET_AXI_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | enet1_ref |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(ENET_REF_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON |
+ ENET1_TIME_CLK_ROOT_FROM_PLL_ENET_MAIN_100M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4);
+ clock_set_target_val(ENET_TIMER_CLK_ROOT, target);
+
+ /* enable clock */
+ clock_enable(CCGR_SIM_ENET, 1);
+ clock_enable(CCGR_ENET1, 1);
+
+ return 0;
+}
+#endif
+
+u32 imx_get_fecclk(void)
+{
+ return get_root_clk(ENET_AXI_CLK_ROOT);
+}
+
+static struct dram_bypass_clk_setting imx8mq_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(imx8mq_dram_bypass_tbl); i++) {
+ if (clk_val == imx8mq_dram_bypass_tbl[i].clk)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(imx8mq_dram_bypass_tbl)) {
+ printf("No matched freq table %lu\n", clk_val);
+ return;
+ }
+
+ config = &imx8mq_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));
+}
+
+#ifdef CONFIG_SPL_BUILD
+void dram_pll_init(ulong pll_val)
+{
+ u32 val;
+ void __iomem *pll_control_reg = &ana_pll->dram_pll_cfg0;
+ void __iomem *pll_cfg_reg2 = &ana_pll->dram_pll_cfg2;
+
+ /* Bypass */
+ setbits_le32(pll_control_reg, SSCG_PLL_BYPASS1_MASK);
+ setbits_le32(pll_control_reg, SSCG_PLL_BYPASS2_MASK);
+
+ switch (pll_val) {
+ case MHZ(800):
+ val = readl(pll_cfg_reg2);
+ val &= ~(SSCG_PLL_OUTPUT_DIV_VAL_MASK |
+ SSCG_PLL_FEEDBACK_DIV_F2_MASK |
+ SSCG_PLL_FEEDBACK_DIV_F1_MASK |
+ SSCG_PLL_REF_DIVR2_MASK);
+ val |= SSCG_PLL_OUTPUT_DIV_VAL(0);
+ val |= SSCG_PLL_FEEDBACK_DIV_F2_VAL(11);
+ val |= SSCG_PLL_FEEDBACK_DIV_F1_VAL(39);
+ val |= SSCG_PLL_REF_DIVR2_VAL(29);
+ writel(val, pll_cfg_reg2);
+ break;
+ case MHZ(600):
+ val = readl(pll_cfg_reg2);
+ val &= ~(SSCG_PLL_OUTPUT_DIV_VAL_MASK |
+ SSCG_PLL_FEEDBACK_DIV_F2_MASK |
+ SSCG_PLL_FEEDBACK_DIV_F1_MASK |
+ SSCG_PLL_REF_DIVR2_MASK);
+ val |= SSCG_PLL_OUTPUT_DIV_VAL(1);
+ val |= SSCG_PLL_FEEDBACK_DIV_F2_VAL(17);
+ val |= SSCG_PLL_FEEDBACK_DIV_F1_VAL(39);
+ val |= SSCG_PLL_REF_DIVR2_VAL(29);
+ writel(val, pll_cfg_reg2);
+ break;
+ case MHZ(400):
+ val = readl(pll_cfg_reg2);
+ val &= ~(SSCG_PLL_OUTPUT_DIV_VAL_MASK |
+ SSCG_PLL_FEEDBACK_DIV_F2_MASK |
+ SSCG_PLL_FEEDBACK_DIV_F1_MASK |
+ SSCG_PLL_REF_DIVR2_MASK);
+ val |= SSCG_PLL_OUTPUT_DIV_VAL(1);
+ val |= SSCG_PLL_FEEDBACK_DIV_F2_VAL(11);
+ val |= SSCG_PLL_FEEDBACK_DIV_F1_VAL(39);
+ val |= SSCG_PLL_REF_DIVR2_VAL(29);
+ writel(val, pll_cfg_reg2);
+ break;
+ case MHZ(167):
+ val = readl(pll_cfg_reg2);
+ val &= ~(SSCG_PLL_OUTPUT_DIV_VAL_MASK |
+ SSCG_PLL_FEEDBACK_DIV_F2_MASK |
+ SSCG_PLL_FEEDBACK_DIV_F1_MASK |
+ SSCG_PLL_REF_DIVR2_MASK);
+ val |= SSCG_PLL_OUTPUT_DIV_VAL(3);
+ val |= SSCG_PLL_FEEDBACK_DIV_F2_VAL(8);
+ val |= SSCG_PLL_FEEDBACK_DIV_F1_VAL(45);
+ val |= SSCG_PLL_REF_DIVR2_VAL(30);
+ writel(val, pll_cfg_reg2);
+ break;
+ default:
+ break;
+ }
+
+ /* Clear power down bit */
+ clrbits_le32(pll_control_reg, SSCG_PLL_PD_MASK);
+ /* Eanble ARM_PLL/SYS_PLL */
+ setbits_le32(pll_control_reg, SSCG_PLL_DRAM_PLL_CLKE_MASK);
+
+ /* Clear bypass */
+ clrbits_le32(pll_control_reg, SSCG_PLL_BYPASS1_MASK);
+ __udelay(100);
+ clrbits_le32(pll_control_reg, SSCG_PLL_BYPASS2_MASK);
+ /* Wait lock */
+ while (!(readl(pll_control_reg) & SSCG_PLL_LOCK_MASK))
+ ;
+}
+
+int frac_pll_init(u32 pll, enum frac_pll_out_val val)
+{
+ void __iomem *pll_cfg0, __iomem *pll_cfg1;
+ u32 val_cfg0, val_cfg1;
+ int ret;
+
+ switch (pll) {
+ case ANATOP_ARM_PLL:
+ pll_cfg0 = &ana_pll->arm_pll_cfg0;
+ pll_cfg1 = &ana_pll->arm_pll_cfg1;
+
+ if (val == FRAC_PLL_OUT_1000M)
+ val_cfg1 = FRAC_PLL_INT_DIV_CTL_VAL(49);
+ else
+ val_cfg1 = FRAC_PLL_INT_DIV_CTL_VAL(79);
+ val_cfg0 = FRAC_PLL_CLKE_MASK | FRAC_PLL_REFCLK_SEL_OSC_25M |
+ FRAC_PLL_LOCK_SEL_MASK | FRAC_PLL_NEWDIV_VAL_MASK |
+ FRAC_PLL_REFCLK_DIV_VAL(4) |
+ FRAC_PLL_OUTPUT_DIV_VAL(0);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* bypass the clock */
+ setbits_le32(pll_cfg0, FRAC_PLL_BYPASS_MASK);
+ /* Set the value */
+ writel(val_cfg1, pll_cfg1);
+ writel(val_cfg0 | FRAC_PLL_BYPASS_MASK, pll_cfg0);
+ val_cfg0 = readl(pll_cfg0);
+ /* unbypass the clock */
+ clrbits_le32(pll_cfg0, FRAC_PLL_BYPASS_MASK);
+ ret = readl_poll_timeout(pll_cfg0, val_cfg0,
+ val_cfg0 & FRAC_PLL_LOCK_MASK, 1);
+ if (ret)
+ printf("%s timeout\n", __func__);
+ clrbits_le32(pll_cfg0, FRAC_PLL_NEWDIV_VAL_MASK);
+
+ return 0;
+}
+
+int sscg_pll_init(u32 pll)
+{
+ void __iomem *pll_cfg0, __iomem *pll_cfg1, __iomem *pll_cfg2;
+ u32 val_cfg0, val_cfg1, val_cfg2, val;
+ u32 bypass1_mask = 0x20, bypass2_mask = 0x10;
+ int ret;
+
+ switch (pll) {
+ case ANATOP_SYSTEM_PLL1:
+ pll_cfg0 = &ana_pll->sys_pll1_cfg0;
+ pll_cfg1 = &ana_pll->sys_pll1_cfg1;
+ pll_cfg2 = &ana_pll->sys_pll1_cfg2;
+ /* 800MHz */
+ val_cfg2 = SSCG_PLL_FEEDBACK_DIV_F1_VAL(3) |
+ SSCG_PLL_FEEDBACK_DIV_F2_VAL(3);
+ val_cfg1 = 0;
+ val_cfg0 = SSCG_PLL_CLKE_MASK | SSCG_PLL_DIV2_CLKE_MASK |
+ SSCG_PLL_DIV3_CLKE_MASK | SSCG_PLL_DIV4_CLKE_MASK |
+ SSCG_PLL_DIV5_CLKE_MASK | SSCG_PLL_DIV6_CLKE_MASK |
+ SSCG_PLL_DIV8_CLKE_MASK | SSCG_PLL_DIV10_CLKE_MASK |
+ SSCG_PLL_DIV20_CLKE_MASK | SSCG_PLL_LOCK_SEL_MASK |
+ SSCG_PLL_REFCLK_SEL_OSC_25M;
+ break;
+ case ANATOP_SYSTEM_PLL2:
+ pll_cfg0 = &ana_pll->sys_pll2_cfg0;
+ pll_cfg1 = &ana_pll->sys_pll2_cfg1;
+ pll_cfg2 = &ana_pll->sys_pll2_cfg2;
+ /* 1000MHz */
+ val_cfg2 = SSCG_PLL_FEEDBACK_DIV_F1_VAL(3) |
+ SSCG_PLL_FEEDBACK_DIV_F2_VAL(4);
+ val_cfg1 = 0;
+ val_cfg0 = SSCG_PLL_CLKE_MASK | SSCG_PLL_DIV2_CLKE_MASK |
+ SSCG_PLL_DIV3_CLKE_MASK | SSCG_PLL_DIV4_CLKE_MASK |
+ SSCG_PLL_DIV5_CLKE_MASK | SSCG_PLL_DIV6_CLKE_MASK |
+ SSCG_PLL_DIV8_CLKE_MASK | SSCG_PLL_DIV10_CLKE_MASK |
+ SSCG_PLL_DIV20_CLKE_MASK | SSCG_PLL_LOCK_SEL_MASK |
+ SSCG_PLL_REFCLK_SEL_OSC_25M;
+ break;
+ case ANATOP_SYSTEM_PLL3:
+ pll_cfg0 = &ana_pll->sys_pll3_cfg0;
+ pll_cfg1 = &ana_pll->sys_pll3_cfg1;
+ pll_cfg2 = &ana_pll->sys_pll3_cfg2;
+ /* 800MHz */
+ val_cfg2 = SSCG_PLL_FEEDBACK_DIV_F1_VAL(3) |
+ SSCG_PLL_FEEDBACK_DIV_F2_VAL(3);
+ val_cfg1 = 0;
+ val_cfg0 = SSCG_PLL_PLL3_CLKE_MASK | SSCG_PLL_LOCK_SEL_MASK |
+ SSCG_PLL_REFCLK_SEL_OSC_25M;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /*bypass*/
+ setbits_le32(pll_cfg0, bypass1_mask | bypass2_mask);
+ /* set value */
+ writel(val_cfg2, pll_cfg2);
+ writel(val_cfg1, pll_cfg1);
+ /*unbypass1 and wait 70us */
+ writel(val_cfg0 | bypass2_mask, pll_cfg1);
+
+ __udelay(70);
+
+ /* unbypass2 and wait lock */
+ writel(val_cfg0, pll_cfg1);
+ ret = readl_poll_timeout(pll_cfg0, val, val & SSCG_PLL_LOCK_MASK, 1);
+ if (ret)
+ printf("%s timeout\n", __func__);
+
+ return ret;
+}
+
+int clock_init(void)
+{
+ u32 grade;
+
+ clock_set_target_val(ARM_A53_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(0));
+
+ /*
+ * 8MQ only supports two grades: consumer and industrial.
+ * We set ARM clock to 1Ghz for consumer, 800Mhz for industrial
+ */
+ grade = get_cpu_temp_grade(NULL, NULL);
+ if (!grade) {
+ frac_pll_init(ANATOP_ARM_PLL, FRAC_PLL_OUT_1000M);
+ clock_set_target_val(ARM_A53_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1));
+ } else {
+ frac_pll_init(ANATOP_ARM_PLL, FRAC_PLL_OUT_1600M);
+ clock_set_target_val(ARM_A53_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
+ }
+ /*
+ * According to ANAMIX SPEC
+ * sys pll1 fixed at 800MHz
+ * sys pll2 fixed at 1GHz
+ * Here we only enable the outputs.
+ */
+ setbits_le32(&ana_pll->sys_pll1_cfg0, SSCG_PLL_CLKE_MASK |
+ SSCG_PLL_DIV2_CLKE_MASK | SSCG_PLL_DIV3_CLKE_MASK |
+ SSCG_PLL_DIV4_CLKE_MASK | SSCG_PLL_DIV5_CLKE_MASK |
+ SSCG_PLL_DIV6_CLKE_MASK | SSCG_PLL_DIV8_CLKE_MASK |
+ SSCG_PLL_DIV10_CLKE_MASK | SSCG_PLL_DIV20_CLKE_MASK);
+
+ setbits_le32(&ana_pll->sys_pll2_cfg0, SSCG_PLL_CLKE_MASK |
+ SSCG_PLL_DIV2_CLKE_MASK | SSCG_PLL_DIV3_CLKE_MASK |
+ SSCG_PLL_DIV4_CLKE_MASK | SSCG_PLL_DIV5_CLKE_MASK |
+ SSCG_PLL_DIV6_CLKE_MASK | SSCG_PLL_DIV8_CLKE_MASK |
+ SSCG_PLL_DIV10_CLKE_MASK | SSCG_PLL_DIV20_CLKE_MASK);
+
+ clock_set_target_val(NAND_USDHC_BUS_CLK_ROOT, CLK_ROOT_ON |
+ CLK_ROOT_SOURCE_SEL(1));
+
+ init_wdog_clk();
+ clock_enable(CCGR_TSENSOR, 1);
+
+ return 0;
+}
+#endif
+
+/*
+ * Dump some clockes.
+ */
+#ifndef CONFIG_SPL_BUILD
+int do_imx8m_showclocks(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ u32 freq;
+
+ freq = decode_frac_pll(ARM_PLL_CLK);
+ printf("ARM_PLL %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL1_800M_CLK);
+ printf("SYS_PLL1_800 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL1_400M_CLK);
+ printf("SYS_PLL1_400 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL1_266M_CLK);
+ printf("SYS_PLL1_266 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL1_200M_CLK);
+ printf("SYS_PLL1_200 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL1_160M_CLK);
+ printf("SYS_PLL1_160 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL1_133M_CLK);
+ printf("SYS_PLL1_133 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL1_100M_CLK);
+ printf("SYS_PLL1_100 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL1_80M_CLK);
+ printf("SYS_PLL1_80 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL1_40M_CLK);
+ printf("SYS_PLL1_40 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL2_1000M_CLK);
+ printf("SYS_PLL2_1000 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL2_500M_CLK);
+ printf("SYS_PLL2_500 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL2_333M_CLK);
+ printf("SYS_PLL2_333 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL2_250M_CLK);
+ printf("SYS_PLL2_250 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL2_200M_CLK);
+ printf("SYS_PLL2_200 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL2_166M_CLK);
+ printf("SYS_PLL2_166 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL2_125M_CLK);
+ printf("SYS_PLL2_125 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL2_100M_CLK);
+ printf("SYS_PLL2_100 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL2_50M_CLK);
+ printf("SYS_PLL2_50 %8d MHz\n", freq / 1000000);
+ freq = decode_sscg_pll(SYSTEM_PLL3_CLK);
+ printf("SYS_PLL3 %8d MHz\n", freq / 1000000);
+ freq = mxc_get_clock(UART1_CLK_ROOT);
+ printf("UART1 %8d MHz\n", freq / 1000000);
+ freq = mxc_get_clock(USDHC1_CLK_ROOT);
+ printf("USDHC1 %8d MHz\n", freq / 1000000);
+ freq = mxc_get_clock(QSPI_CLK_ROOT);
+ printf("QSPI %8d MHz\n", freq / 1000000);
+ return 0;
+}
+
+U_BOOT_CMD(
+ clocks, CONFIG_SYS_MAXARGS, 1, do_imx8m_showclocks,
+ "display clocks",
+ ""
+);
+#endif
projects / oweals / u-boot.git / commitdiff