[U-Boot] [PATCH 10/15][v3] imx: imx7d: clock control module support

Adrian Alonso
2015-07-22T22:24:58Z

* Add Clock control module (CCM) support
* iMX7D SoC introduces 3 main clock sysmtem abstraction for clock
root frequency generation denominated clock slices.
Core clock slice: hihg speed clock for ARM core
Bus clock slice: for bus clocks
IP clock slice: Peripheral clocks
* At system boot ROM enables PLL_ARM, PLL_DDR, PLL_SYS, PLL_ENET
In u-boot, we have to:
- Configure PFD3- PFD7 for freq we needed in u-boot
- Set clock root for peripherals (ip channel)

Signed-off-by: Adrian Alonso <aalonso@freescale.com>
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>
---
Changes for V2: Split from patch imx: imx7d: initial arch level support
Changes for V3: Resend

arch/arm/cpu/armv7/mx7/clock.c | 1130 +++++++++++++++++++++++++++
arch/arm/cpu/armv7/mx7/clock_slice.c | 757 ++++++++++++++++++
arch/arm/include/asm/arch-mx7/clock.h | 348 +++++++++
arch/arm/include/asm/arch-mx7/clock_slice.h | 116 +++
4 files changed, 2351 insertions(+)
create mode 100644 arch/arm/cpu/armv7/mx7/clock.c
create mode 100644 arch/arm/cpu/armv7/mx7/clock_slice.c
create mode 100644 arch/arm/include/asm/arch-mx7/clock.h
create mode 100644 arch/arm/include/asm/arch-mx7/clock_slice.h

diff --git a/arch/arm/cpu/armv7/mx7/clock.c b/arch/arm/cpu/armv7/mx7/clock.c
new file mode 100644
index 0000000..fe92de9
--- /dev/null
+++ b/arch/arm/cpu/armv7/mx7/clock.c
@@ -0,0 +1,1130 @@
+/*
+ * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * Author:
+ * Peng Fan <Peng.Fan@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <div64.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+
+struct mxc_ccm_anatop_reg *ccm_anatop = (struct mxc_ccm_anatop_reg *)
+ ANATOP_BASE_ADDR;
+struct mxc_ccm_reg *ccm_reg = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+#ifdef CONFIG_FSL_ESDHC
+DECLARE_GLOBAL_DATA_PTR;
+#endif
+
+int get_clocks(void)
+{
+#ifdef CONFIG_FSL_ESDHC
+#if CONFIG_SYS_FSL_ESDHC_ADDR == USDHC2_BASE_ADDR
+ gd->arch.sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+#elif CONFIG_SYS_FSL_ESDHC_ADDR == USDHC3_BASE_ADDR
+ gd->arch.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+#else
+ gd->arch.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
+#endif
+#endif
+ return 0;
+}
+
+u32 get_ahb_clk(void)
+{
+ return get_root_clk(AHB_CLK_ROOT);
+}
+
+static u32 get_ipg_clk(void)
+{
+ /*
+ * The AHB and IPG are fixed at 2:1 ratio, and synchronized to
+ * each other.
+ */
+ return get_ahb_clk() / 2;
+}
+
+u32 imx_get_uartclk(void)
+{
+ return get_root_clk(UART1_CLK_ROOT);
+}
+
+u32 imx_get_fecclk(void)
+{
+ return get_root_clk(ENET_AXI_CLK_ROOT);
+}
+
+#ifdef CONFIG_MXC_OCOTP
+void enable_ocotp_clk(unsigned char enable)
+{
+ clock_enable(CCGR_OCOTP, enable);
+}
+
+void enable_thermal_clk(void)
+{
+ enable_ocotp_clk(1);
+}
+#endif
+
+void enable_usboh3_clk(unsigned char enable)
+{
+ u32 target;
+
+ if (enable) {
+ /* disable the clock gate first */
+ clock_enable(CCGR_USB_HSIC, 0);
+
+ /* 120Mhz */
+ target = CLK_ROOT_ON | USB_HSIC_CLK_ROOT_FROM_PLL_SYS_MAIN_480M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(USB_HSIC_CLK_ROOT, target);
+
+ /* enable the clock gate */
+ clock_enable(CCGR_USB_CTRL, 1);
+ clock_enable(CCGR_USB_HSIC, 1);
+ clock_enable(CCGR_USB_PHY1, 1);
+ clock_enable(CCGR_USB_PHY2, 1);
+ } else {
+ clock_enable(CCGR_USB_CTRL, 0);
+ clock_enable(CCGR_USB_HSIC, 0);
+ clock_enable(CCGR_USB_PHY1, 0);
+ clock_enable(CCGR_USB_PHY2, 0);
+ }
+
+}
+
+static u32 decode_pll(enum pll_clocks pll, u32 infreq)
+{
+ u32 reg, div_sel;
+ u32 num, denom;
+
+ /*
+ * Alought there are four choices for the bypass src,
+ * we choose OSC_24M which is the default set in ROM.
+ */
+ switch (pll) {
+ case PLL_CORE:
+ reg = readl(&ccm_anatop->pll_arm);
+
+ if (reg & CCM_ANALOG_PLL_ARM_POWERDOWN_MASK)
+ return 0;
+
+ if (reg & CCM_ANALOG_PLL_ARM_BYPASS_MASK)
+ return MXC_HCLK;
+
+ div_sel = (reg & CCM_ANALOG_PLL_ARM_DIV_SELECT_MASK) >>
+ CCM_ANALOG_PLL_ARM_DIV_SELECT_SHIFT;
+
+ return (infreq * div_sel) / 2;
+
+ case PLL_SYS:
+ reg = readl(&ccm_anatop->pll_480);
+
+ if (reg & CCM_ANALOG_PLL_480_POWERDOWN_MASK)
+ return 0;
+
+ if (reg & CCM_ANALOG_PLL_480_BYPASS_MASK)
+ return MXC_HCLK;
+
+ if (((reg & CCM_ANALOG_PLL_480_DIV_SELECT_MASK) >>
+ CCM_ANALOG_PLL_480_DIV_SELECT_SHIFT) == 0)
+ return 480000000u;
+ else
+ return 528000000u;
+
+ case PLL_ENET:
+ reg = readl(&ccm_anatop->pll_enet);
+
+ if (reg & CCM_ANALOG_PLL_ENET_POWERDOWN_MASK)
+ return 0;
+
+ if (reg & CCM_ANALOG_PLL_ENET_BYPASS_MASK)
+ return MXC_HCLK;
+
+ return 1000000000u;
+
+ case PLL_DDR:
+ reg = readl(&ccm_anatop->pll_ddr);
+
+ if (reg & CCM_ANALOG_PLL_DDR_POWERDOWN_MASK)
+ return 0;
+
+ num = ccm_anatop->pll_ddr_num;
+ denom = ccm_anatop->pll_ddr_denom;
+
+ if (reg & CCM_ANALOG_PLL_DDR_BYPASS_MASK)
+ return MXC_HCLK;
+
+ div_sel = (reg & CCM_ANALOG_PLL_DDR_DIV_SELECT_MASK) >>
+ CCM_ANALOG_PLL_DDR_DIV_SELECT_SHIFT;
+
+ return infreq * (div_sel + num / denom);
+
+ case PLL_USB:
+ return 480000000u;
+
+ default:
+ printf("Unsupported pll clocks %d\n", pll);
+ break;
+ }
+
+ return 0;
+}
+
+static u32 mxc_get_pll_sys_derive(int derive)
+{
+ u32 freq, div, frac;
+ u32 reg;
+
+ div = 1;
+ reg = readl(&ccm_anatop->pll_480);
+ freq = decode_pll(PLL_SYS, MXC_HCLK);
+
+ switch (derive) {
+ case PLL_SYS_MAIN_480M_CLK:
+ if (reg & CCM_ANALOG_PLL_480_MAIN_DIV1_CLKGATE_MASK)
+ return 0;
+ else
+ return freq;
+ case PLL_SYS_MAIN_240M_CLK:
+ if (reg & CCM_ANALOG_PLL_480_MAIN_DIV2_CLKGATE_MASK)
+ return 0;
+ else
+ return freq / 2;
+ case PLL_SYS_MAIN_120M_CLK:
+ if (reg & CCM_ANALOG_PLL_480_MAIN_DIV4_CLKGATE_MASK)
+ return 0;
+ else
+ return freq / 4;
+ case PLL_SYS_PFD0_392M_CLK:
+ reg = readl(&ccm_anatop->pfd_480a);
+ if (reg & CCM_ANALOG_PFD_480A_PFD0_DIV1_CLKGATE_MASK)
+ return 0;
+ frac = (reg & CCM_ANALOG_PFD_480A_PFD0_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480A_PFD0_FRAC_SHIFT;
+ break;
+ case PLL_SYS_PFD0_196M_CLK:
+ if (reg & CCM_ANALOG_PLL_480_PFD0_DIV2_CLKGATE_MASK)
+ return 0;
+ reg = readl(&ccm_anatop->pfd_480a);
+ frac = (reg & CCM_ANALOG_PFD_480A_PFD0_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480A_PFD0_FRAC_SHIFT;
+ div = 2;
+ break;
+ case PLL_SYS_PFD1_332M_CLK:
+ reg = readl(&ccm_anatop->pfd_480a);
+ if (reg & CCM_ANALOG_PFD_480A_PFD1_DIV1_CLKGATE_MASK)
+ return 0;
+ frac = (reg & CCM_ANALOG_PFD_480A_PFD1_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480A_PFD1_FRAC_SHIFT;
+ break;
+ case PLL_SYS_PFD1_166M_CLK:
+ if (reg & CCM_ANALOG_PLL_480_PFD1_DIV2_CLKGATE_MASK)
+ return 0;
+ reg = readl(&ccm_anatop->pfd_480a);
+ frac = (reg & CCM_ANALOG_PFD_480A_PFD1_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480A_PFD1_FRAC_SHIFT;
+ div = 2;
+ break;
+ case PLL_SYS_PFD2_270M_CLK:
+ reg = readl(&ccm_anatop->pfd_480a);
+ if (reg & CCM_ANALOG_PFD_480A_PFD2_DIV1_CLKGATE_MASK)
+ return 0;
+ frac = (reg & CCM_ANALOG_PFD_480A_PFD2_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480A_PFD2_FRAC_SHIFT;
+ break;
+ case PLL_SYS_PFD2_135M_CLK:
+ if (reg & CCM_ANALOG_PLL_480_PFD2_DIV2_CLKGATE_MASK)
+ return 0;
+ reg = readl(&ccm_anatop->pfd_480a);
+ frac = (reg & CCM_ANALOG_PFD_480A_PFD2_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480A_PFD2_FRAC_SHIFT;
+ div = 2;
+ break;
+ case PLL_SYS_PFD3_CLK:
+ reg = readl(&ccm_anatop->pfd_480a);
+ if (reg & CCM_ANALOG_PFD_480A_PFD3_DIV1_CLKGATE_MASK)
+ return 0;
+ frac = (reg & CCM_ANALOG_PFD_480A_PFD3_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480A_PFD3_FRAC_SHIFT;
+ break;
+ case PLL_SYS_PFD4_CLK:
+ reg = readl(&ccm_anatop->pfd_480b);
+ if (reg & CCM_ANALOG_PFD_480B_PFD4_DIV1_CLKGATE_MASK)
+ return 0;
+ frac = (reg & CCM_ANALOG_PFD_480B_PFD4_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480B_PFD4_FRAC_SHIFT;
+ break;
+ case PLL_SYS_PFD5_CLK:
+ reg = readl(&ccm_anatop->pfd_480b);
+ if (reg & CCM_ANALOG_PFD_480B_PFD5_DIV1_CLKGATE_MASK)
+ return 0;
+ frac = (reg & CCM_ANALOG_PFD_480B_PFD5_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480B_PFD5_FRAC_SHIFT;
+ break;
+ case PLL_SYS_PFD6_CLK:
+ reg = readl(&ccm_anatop->pfd_480b);
+ if (reg & CCM_ANALOG_PFD_480B_PFD6_DIV1_CLKGATE_MASK)
+ return 0;
+ frac = (reg & CCM_ANALOG_PFD_480B_PFD6_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480B_PFD6_FRAC_SHIFT;
+ break;
+ case PLL_SYS_PFD7_CLK:
+ reg = readl(&ccm_anatop->pfd_480b);
+ if (reg & CCM_ANALOG_PFD_480B_PFD7_DIV1_CLKGATE_MASK)
+ return 0;
+ frac = (reg & CCM_ANALOG_PFD_480B_PFD7_FRAC_MASK) >>
+ CCM_ANALOG_PFD_480B_PFD7_FRAC_SHIFT;
+ break;
+ default:
+ printf("Error derived pll_sys clock %d\n", derive);
+ return 0;
+ }
+
+ return ((freq / frac) * 18) / div;
+}
+
+static u32 mxc_get_pll_enet_derive(int derive)
+{
+ u32 freq, reg;
+
+ freq = decode_pll(PLL_ENET, MXC_HCLK);
+ reg = readl(&ccm_anatop->pll_enet);
+
+ switch (derive) {
+ case PLL_ENET_MAIN_500M_CLK:
+ if (reg & CCM_ANALOG_PLL_ENET_ENABLE_CLK_500MHZ_MASK)
+ return freq / 2;
+ break;
+ case PLL_ENET_MAIN_250M_CLK:
+ if (reg & CCM_ANALOG_PLL_ENET_ENABLE_CLK_250MHZ_MASK)
+ return freq / 4;
+ break;
+ case PLL_ENET_MAIN_125M_CLK:
+ if (reg & CCM_ANALOG_PLL_ENET_ENABLE_CLK_125MHZ_MASK)
+ return freq / 8;
+ break;
+ case PLL_ENET_MAIN_100M_CLK:
+ if (reg & CCM_ANALOG_PLL_ENET_ENABLE_CLK_100MHZ_MASK)
+ return freq / 10;
+ break;
+ case PLL_ENET_MAIN_50M_CLK:
+ if (reg & CCM_ANALOG_PLL_ENET_ENABLE_CLK_50MHZ_MASK)
+ return freq / 20;
+ break;
+ case PLL_ENET_MAIN_40M_CLK:
+ if (reg & CCM_ANALOG_PLL_ENET_ENABLE_CLK_40MHZ_MASK)
+ return freq / 25;
+ break;
+ case PLL_ENET_MAIN_25M_CLK:
+ if (reg & CCM_ANALOG_PLL_ENET_ENABLE_CLK_25MHZ_MASK)
+ return freq / 40;
+ break;
+ default:
+ printf("Error derived pll_enet clock %d\n", derive);
+ break;
+ }
+
+ return 0;
+}
+
+static u32 mxc_get_pll_ddr_derive(int derive)
+{
+ u32 freq, reg;
+
+ freq = decode_pll(PLL_DDR, MXC_HCLK);
+ reg = readl(&ccm_anatop->pll_ddr);
+
+ switch (derive) {
+ case PLL_DRAM_MAIN_1066M_CLK:
+ return freq;
+ case PLL_DRAM_MAIN_533M_CLK:
+ if (reg & CCM_ANALOG_PLL_DDR_DIV2_ENABLE_CLK_MASK)
+ return freq / 2;
+ break;
+ default:
+ printf("Error derived pll_ddr clock %d\n", derive);
+ break;
+ }
+
+ return 0;
+}
+
+static u32 mxc_get_pll_derive(enum pll_clocks pll, int derive)
+{
+ switch (pll) {
+ case PLL_SYS:
+ return mxc_get_pll_sys_derive(derive);
+ case PLL_ENET:
+ return mxc_get_pll_enet_derive(derive);
+ case PLL_DDR:
+ return mxc_get_pll_ddr_derive(derive);
+ default:
+ printf("Error pll.\n");
+ return 0;
+ }
+}
+
+static u32 get_root_src_clk(enum clk_root_src root_src)
+{
+ switch (root_src) {
+ case OSC_24M_CLK:
+ return 24000000u;
+ case PLL_ARM_MAIN_800M_CLK:
+ return decode_pll(PLL_CORE, MXC_HCLK);
+
+ case PLL_SYS_MAIN_480M_CLK:
+ case PLL_SYS_MAIN_240M_CLK:
+ case PLL_SYS_MAIN_120M_CLK:
+ case PLL_SYS_PFD0_392M_CLK:
+ case PLL_SYS_PFD0_196M_CLK:
+ case PLL_SYS_PFD1_332M_CLK:
+ case PLL_SYS_PFD1_166M_CLK:
+ case PLL_SYS_PFD2_270M_CLK:
+ case PLL_SYS_PFD2_135M_CLK:
+ case PLL_SYS_PFD3_CLK:
+ case PLL_SYS_PFD4_CLK:
+ case PLL_SYS_PFD5_CLK:
+ case PLL_SYS_PFD6_CLK:
+ case PLL_SYS_PFD7_CLK:
+ return mxc_get_pll_derive(PLL_SYS, root_src);
+
+ case PLL_ENET_MAIN_500M_CLK:
+ case PLL_ENET_MAIN_250M_CLK:
+ case PLL_ENET_MAIN_125M_CLK:
+ case PLL_ENET_MAIN_100M_CLK:
+ case PLL_ENET_MAIN_50M_CLK:
+ case PLL_ENET_MAIN_40M_CLK:
+ case PLL_ENET_MAIN_25M_CLK:
+ return mxc_get_pll_derive(PLL_ENET, root_src);
+
+ case PLL_DRAM_MAIN_1066M_CLK:
+ case PLL_DRAM_MAIN_533M_CLK:
+ return mxc_get_pll_derive(PLL_DDR, root_src);
+
+ case PLL_AUDIO_MAIN_CLK:
+ return decode_pll(PLL_AUDIO, MXC_HCLK);
+ case PLL_VIDEO_MAIN_CLK:
+ return decode_pll(PLL_VIDEO, MXC_HCLK);
+
+ case PLL_USB_MAIN_480M_CLK:
+ return decode_pll(PLL_USB, MXC_HCLK);
+
+ case REF_1M_CLK:
+ return 1000000;
+ case OSC_32K_CLK:
+ return MXC_CLK32;
+
+ case EXT_CLK_1:
+ case EXT_CLK_2:
+ case EXT_CLK_3:
+ case EXT_CLK_4:
+ printf("No EXT CLK supported??\n");
+ break;
+ };
+
+ return 0;
+}
+
+u32 get_root_clk(enum clk_root_index clock_id)
+{
+ enum clk_root_src root_src;
+ u32 post_podf, pre_podf, auto_podf, root_src_clk;
+ int auto_en;
+
+ 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_autopostdiv(clock_id, &auto_podf, &auto_en) < 0)
+ return 0;
+
+ if (auto_en == 0)
+ auto_podf = 0;
+
+ if (clock_get_src(clock_id, &root_src) < 0)
+ return 0;
+
+ root_src_clk = get_root_src_clk(root_src);
+
+ /*
+ * bypass clk is ignored.
+ */
+
+ return root_src_clk / (post_podf + 1) / (pre_podf + 1) /
+ (auto_podf + 1);
+}
+
+static u32 get_ddrc_clk(void)
+{
+ u32 reg, freq;
+ enum root_post_div post_div;
+
+ reg = readl(&ccm_reg->root[DRAM_CLK_ROOT].target_root);
+ if (reg & CLK_ROOT_MUX_MASK)
+ /* DRAM_ALT_CLK_ROOT */
+ freq = get_root_clk(DRAM_ALT_CLK_ROOT);
+ else
+ /* PLL_DRAM_MAIN_1066M_CLK */
+ freq = mxc_get_pll_derive(PLL_DDR, PLL_DRAM_MAIN_1066M_CLK);
+
+ post_div = reg & DRAM_CLK_ROOT_POST_DIV_MASK;
+
+ return freq / (post_div + 1) / 2;
+}
+
+unsigned int mxc_get_clock(enum mxc_clock clk)
+{
+ switch (clk) {
+ case MXC_ARM_CLK:
+ return get_root_clk(ARM_A7_CLK_ROOT);
+ case MXC_AXI_CLK:
+ return get_root_clk(MAIN_AXI_CLK_ROOT);
+ case MXC_AHB_CLK:
+ return get_root_clk(AHB_CLK_ROOT);
+ case MXC_IPG_CLK:
+ return get_ipg_clk();
+ case MXC_I2C_CLK:
+ return get_root_clk(I2C1_CLK_ROOT);
+ case MXC_UART_CLK:
+ return get_root_clk(UART1_CLK_ROOT);
+ case MXC_CSPI_CLK:
+ return get_root_clk(ECSPI1_CLK_ROOT);
+ case MXC_DDR_CLK:
+ return get_ddrc_clk();
+ case MXC_ESDHC_CLK:
+ return get_root_clk(USDHC1_CLK_ROOT);
+ case MXC_ESDHC2_CLK:
+ return get_root_clk(USDHC2_CLK_ROOT);
+ case MXC_ESDHC3_CLK:
+ return get_root_clk(USDHC3_CLK_ROOT);
+ default:
+ printf("Unsupported mxc_clock %d\n", clk);
+ break;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_SYS_I2C_MXC
+/* i2c_num can be 0 - 3 */
+int enable_i2c_clk(unsigned char enable, unsigned i2c_num)
+{
+ u32 target;
+
+ if (i2c_num >= 4)
+ return -EINVAL;
+
+ if (enable) {
+ clock_enable(CCGR_I2C1 + i2c_num, 0);
+
+ /* Set i2c root clock to PLL_SYS_MAIN_120M_CLK */
+
+ target = CLK_ROOT_ON | I2C1_CLK_ROOT_FROM_PLL_SYS_MAIN_120M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2);
+ clock_set_target_val(I2C1_CLK_ROOT + i2c_num, target);
+
+ clock_enable(CCGR_I2C1 + i2c_num, 1);
+ } else {
+ clock_enable(CCGR_I2C1 + i2c_num, 0);
+ }
+
+ return 0;
+}
+#endif
+
+static void init_clk_esdhc(void)
+{
+ u32 target;
+
+ /* disable the clock gate first */
+ clock_enable(CCGR_USDHC1, 0);
+ clock_enable(CCGR_USDHC2, 0);
+ clock_enable(CCGR_USDHC3, 0);
+
+ /* 196: 392/2 */
+ target = CLK_ROOT_ON | USDHC1_CLK_ROOT_FROM_PLL_SYS_PFD0_392M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2);
+ clock_set_target_val(USDHC1_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | USDHC1_CLK_ROOT_FROM_PLL_SYS_PFD0_392M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2);
+ clock_set_target_val(USDHC2_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | USDHC1_CLK_ROOT_FROM_PLL_SYS_PFD0_392M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2);
+ clock_set_target_val(USDHC3_CLK_ROOT, target);
+
+ /* enable the clock gate */
+ clock_enable(CCGR_USDHC1, 1);
+ clock_enable(CCGR_USDHC2, 1);
+ clock_enable(CCGR_USDHC3, 1);
+
+}
+
+static void init_clk_uart(void)
+{
+ u32 target;
+
+ /* disable the clock gate first */
+ clock_enable(CCGR_UART1, 0);
+ clock_enable(CCGR_UART2, 0);
+ clock_enable(CCGR_UART3, 0);
+ clock_enable(CCGR_UART4, 0);
+ clock_enable(CCGR_UART5, 0);
+ clock_enable(CCGR_UART6, 0);
+ clock_enable(CCGR_UART7, 0);
+
+ /* 24Mhz */
+ target = CLK_ROOT_ON | UART1_CLK_ROOT_FROM_OSC_24M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(UART1_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | UART2_CLK_ROOT_FROM_OSC_24M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(UART2_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | UART3_CLK_ROOT_FROM_OSC_24M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(UART3_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | UART4_CLK_ROOT_FROM_OSC_24M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(UART4_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | UART5_CLK_ROOT_FROM_OSC_24M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(UART5_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | UART6_CLK_ROOT_FROM_OSC_24M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(UART6_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | UART7_CLK_ROOT_FROM_OSC_24M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(UART7_CLK_ROOT, target);
+
+ /* enable the clock gate */
+ clock_enable(CCGR_UART1, 1);
+ clock_enable(CCGR_UART2, 1);
+ clock_enable(CCGR_UART3, 1);
+ clock_enable(CCGR_UART4, 1);
+ clock_enable(CCGR_UART5, 1);
+ clock_enable(CCGR_UART6, 1);
+ clock_enable(CCGR_UART7, 1);
+
+}
+
+static void init_clk_weim(void)
+{
+ u32 target;
+
+ /* disable the clock gate first */
+ clock_enable(CCGR_WEIM, 0);
+
+ /* 120Mhz */
+ target = CLK_ROOT_ON | EIM_CLK_ROOT_FROM_PLL_SYS_MAIN_120M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(EIM_CLK_ROOT, target);
+
+ /* enable the clock gate */
+ clock_enable(CCGR_WEIM, 1);
+}
+
+static void init_clk_ecspi(void)
+{
+ u32 target;
+
+ /* disable the clock gate first */
+ clock_enable(CCGR_ECSPI1, 0);
+ clock_enable(CCGR_ECSPI2, 0);
+ clock_enable(CCGR_ECSPI3, 0);
+ clock_enable(CCGR_ECSPI4, 0);
+
+ /* 60Mhz: 240/4 */
+ target = CLK_ROOT_ON | ECSPI1_CLK_ROOT_FROM_PLL_SYS_MAIN_240M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4);
+ clock_set_target_val(ECSPI1_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | ECSPI2_CLK_ROOT_FROM_PLL_SYS_MAIN_240M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4);
+ clock_set_target_val(ECSPI2_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | ECSPI3_CLK_ROOT_FROM_PLL_SYS_MAIN_240M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4);
+ clock_set_target_val(ECSPI3_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | ECSPI4_CLK_ROOT_FROM_PLL_SYS_MAIN_240M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4);
+ clock_set_target_val(ECSPI4_CLK_ROOT, target);
+
+ /* enable the clock gate */
+ clock_enable(CCGR_ECSPI1, 1);
+ clock_enable(CCGR_ECSPI2, 1);
+ clock_enable(CCGR_ECSPI3, 1);
+ clock_enable(CCGR_ECSPI4, 1);
+}
+
+static void init_clk_wdog(void)
+{
+ u32 target;
+
+ /* disable the clock gate first */
+ clock_enable(CCGR_WDOG1, 0);
+ clock_enable(CCGR_WDOG2, 0);
+ clock_enable(CCGR_WDOG3, 0);
+ clock_enable(CCGR_WDOG4, 0);
+
+ /* 24Mhz */
+ target = CLK_ROOT_ON | WDOG_CLK_ROOT_FROM_OSC_24M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(WDOG_CLK_ROOT, target);
+
+ /* enable the clock gate */
+ clock_enable(CCGR_WDOG1, 1);
+ clock_enable(CCGR_WDOG2, 1);
+ clock_enable(CCGR_WDOG3, 1);
+ clock_enable(CCGR_WDOG4, 1);
+
+}
+
+#ifdef CONFIG_MXC_EPDC
+static void init_clk_epdc(void)
+{
+ u32 target;
+
+ /* disable the clock gate first */
+ clock_enable(CCGR_EPDC, 0);
+
+ /* 24Mhz */
+ target = CLK_ROOT_ON | EPDC_PIXEL_CLK_ROOT_FROM_PLL_SYS_MAIN_480M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV12);
+ clock_set_target_val(EPDC_PIXEL_CLK_ROOT, target);
+
+ /* enable the clock gate */
+ clock_enable(CCGR_EPDC, 1);
+}
+#endif
+
+static int enable_pll_enet(void)
+{
+ u32 reg;
+ s32 timeout = 100000;
+
+ reg = readl(&ccm_anatop->pll_enet);
+ /* If pll_enet powered up, no need to set it again */
+ if (reg & ANADIG_PLL_ENET_PWDN_MASK) {
+ reg &= ~ANADIG_PLL_ENET_PWDN_MASK;
+ writel(reg, &ccm_anatop->pll_enet);
+
+ while (timeout--) {
+ if (readl(&ccm_anatop->pll_enet) & ANADIG_PLL_LOCK)
+ break;
+ }
+
+ if (timeout <= 0) {
+ /* If timeout, we set pwdn for pll_enet. */
+ reg |= ANADIG_PLL_ENET_PWDN_MASK;
+ return -ETIME;
+ }
+ }
+
+ /* Clear bypass */
+ writel(CCM_ANALOG_PLL_ENET_BYPASS_MASK, &ccm_anatop->pll_enet_clr);
+
+ writel((CCM_ANALOG_PLL_ENET_ENABLE_CLK_500MHZ_MASK
+ | CCM_ANALOG_PLL_ENET_ENABLE_CLK_250MHZ_MASK
+ | CCM_ANALOG_PLL_ENET_ENABLE_CLK_125MHZ_MASK
+ | CCM_ANALOG_PLL_ENET_ENABLE_CLK_100MHZ_MASK
+ | CCM_ANALOG_PLL_ENET_ENABLE_CLK_50MHZ_MASK
+ | CCM_ANALOG_PLL_ENET_ENABLE_CLK_40MHZ_MASK
+ | CCM_ANALOG_PLL_ENET_ENABLE_CLK_25MHZ_MASK),
+ &ccm_anatop->pll_enet_set);
+
+ return 0;
+}
+static int enable_pll_video(u32 pll_div, u32 pll_num, u32 pll_denom,
+ u32 post_div)
+{
+ u32 reg = 0;
+ ulong start;
+
+ debug("pll5 div = %d, num = %d, denom = %d\n",
+ pll_div, pll_num, pll_denom);
+
+ /* Power up PLL5 video and disable its output */
+ writel(CCM_ANALOG_PLL_VIDEO_CLR_ENABLE_CLK_MASK |
+ CCM_ANALOG_PLL_VIDEO_CLR_POWERDOWN_MASK |
+ CCM_ANALOG_PLL_VIDEO_CLR_BYPASS_MASK |
+ CCM_ANALOG_PLL_VIDEO_CLR_DIV_SELECT_MASK |
+ CCM_ANALOG_PLL_VIDEO_CLR_POST_DIV_SEL_MASK |
+ CCM_ANALOG_PLL_VIDEO_CLR_TEST_DIV_SELECT_MASK,
+ &ccm_anatop->pll_video_clr);
+
+ /* Set div, num and denom */
+ switch (post_div) {
+ case 1:
+ writel(CCM_ANALOG_PLL_VIDEO_SET_DIV_SELECT(pll_div) |
+ CCM_ANALOG_PLL_VIDEO_SET_TEST_DIV_SELECT(0x1) |
+ CCM_ANALOG_PLL_VIDEO_SET_POST_DIV_SEL(0x0),
+ &ccm_anatop->pll_video_set);
+ break;
+ case 2:
+ writel(CCM_ANALOG_PLL_VIDEO_SET_DIV_SELECT(pll_div) |
+ CCM_ANALOG_PLL_VIDEO_SET_TEST_DIV_SELECT(0x0) |
+ CCM_ANALOG_PLL_VIDEO_SET_POST_DIV_SEL(0x0),
+ &ccm_anatop->pll_video_set);
+ break;
+ case 3:
+ writel(CCM_ANALOG_PLL_VIDEO_SET_DIV_SELECT(pll_div) |
+ CCM_ANALOG_PLL_VIDEO_SET_TEST_DIV_SELECT(0x0) |
+ CCM_ANALOG_PLL_VIDEO_SET_POST_DIV_SEL(0x1),
+ &ccm_anatop->pll_video_set);
+ break;
+ case 4:
+ writel(CCM_ANALOG_PLL_VIDEO_SET_DIV_SELECT(pll_div) |
+ CCM_ANALOG_PLL_VIDEO_SET_TEST_DIV_SELECT(0x0) |
+ CCM_ANALOG_PLL_VIDEO_SET_POST_DIV_SEL(0x3),
+ &ccm_anatop->pll_video_set);
+ break;
+ case 0:
+ default:
+ writel(CCM_ANALOG_PLL_VIDEO_SET_DIV_SELECT(pll_div) |
+ CCM_ANALOG_PLL_VIDEO_SET_TEST_DIV_SELECT(0x2) |
+ CCM_ANALOG_PLL_VIDEO_SET_POST_DIV_SEL(0x0),
+ &ccm_anatop->pll_video_set);
+ break;
+ }
+
+ writel(CCM_ANALOG_PLL_VIDEO_NUM_A(pll_num),
+ &ccm_anatop->pll_video_num);
+
+ writel(CCM_ANALOG_PLL_VIDEO_DENOM_B(pll_denom),
+ &ccm_anatop->pll_video_denom);
+
+ /* Wait PLL5 lock */
+ start = get_timer(0); /* Get current timestamp */
+
+ do {
+ reg = readl(&ccm_anatop->pll_video);
+ if (reg & CCM_ANALOG_PLL_VIDEO_LOCK_MASK) {
+ /* Enable PLL out */
+ writel(CCM_ANALOG_PLL_VIDEO_CLR_ENABLE_CLK_MASK,
+ &ccm_anatop->pll_video_set);
+ return 0;
+ }
+ } while (get_timer(0) < (start + 10)); /* Wait 10ms */
+
+ printf("Lock PLL5 timeout\n");
+
+ return 1;
+
+}
+
+int set_clk_qspi(void)
+{
+ u32 target;
+
+ /* disable the clock gate first */
+ clock_enable(CCGR_QSPI, 0);
+
+ /* 49M: 392/2/4 */
+ target = CLK_ROOT_ON | QSPI_CLK_ROOT_FROM_PLL_SYS_PFD4_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2);
+ clock_set_target_val(QSPI_CLK_ROOT, target);
+
+ /* enable the clock gate */
+ clock_enable(CCGR_QSPI, 1);
+
+ return 0;
+}
+
+int set_clk_nand(void)
+{
+ u32 target;
+
+ /* disable the clock gate first */
+ clock_enable(CCGR_RAWNAND, 0);
+
+ enable_pll_enet();
+ /* 100: 500/5 */
+ target = CLK_ROOT_ON | NAND_CLK_ROOT_FROM_PLL_ENET_MAIN_500M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV5);
+ clock_set_target_val(NAND_CLK_ROOT, target);
+
+ /* enable the clock gate */
+ clock_enable(CCGR_RAWNAND, 1);
+
+ return 0;
+}
+
+void mxs_set_lcdclk(uint32_t base_addr, uint32_t freq)
+{
+ u32 hck = MXC_HCLK/1000;
+ u32 min = hck * 27;
+ u32 max = hck * 54;
+ u32 temp, best = 0;
+ u32 i, j, pred = 1, postd = 1;
+ u32 pll_div, pll_num, pll_denom, post_div = 0;
+ u32 target;
+
+ debug("mxs_set_lcdclk, freq = %d\n", freq);
+
+ clock_enable(CCGR_LCDIF, 0);
+
+ temp = (freq * 8 * 8);
+ if (temp < min) {
+
+ for (i = 1; i <= 4; i++) {
+ if ((temp * (1 << i)) > min) {
+ post_div = i;
+ freq = (freq * (1 << i));
+ break;
+ }
+ }
+
+ if (5 == i) {
+ printf("Fail to set rate to %dkhz", freq);
+ return;
+ }
+ }
+
+ for (i = 1; i <= 8; i++) {
+ for (j = 1; j <= 8; j++) {
+ temp = freq * i * j;
+ if (temp > max || temp < min)
+ continue;
+
+ if (best == 0 || temp < best) {
+ best = temp;
+ pred = i;
+ postd = j;
+ }
+ }
+ }
+
+ if (best == 0) {
+ printf("Fail to set rate to %dkhz", freq);
+ return;
+ }
+
+ debug("best %d, pred = %d, postd = %d\n", best, pred, postd);
+
+ pll_div = best / hck;
+ pll_denom = 1000000;
+ pll_num = (best - hck * pll_div) * pll_denom / hck;
+
+ if (enable_pll_video(pll_div, pll_num, pll_denom, post_div))
+ return;
+
+ target = CLK_ROOT_ON | LCDIF_PIXEL_CLK_ROOT_FROM_PLL_VIDEO_MAIN_CLK |
+ CLK_ROOT_PRE_DIV((pred - 1)) | CLK_ROOT_POST_DIV((postd - 1));
+ clock_set_target_val(LCDIF_PIXEL_CLK_ROOT, target);
+
+ clock_enable(CCGR_LCDIF, 1);
+}
+
+#ifdef CONFIG_FEC_MXC
+int set_clk_enet(enum enet_freq type)
+{
+ u32 target;
+ int ret;
+ u32 enet1_ref, enet2_ref;
+
+ /* disable the clock first */
+ clock_enable(CCGR_ENET1, 0);
+ clock_enable(CCGR_ENET2, 0);
+
+ switch (type) {
+ case ENET_125MHz:
+ enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_125M_CLK;
+ enet2_ref = ENET2_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;
+ enet2_ref = ENET2_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;
+ enet2_ref = ENET2_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = enable_pll_enet();
+ if (ret != 0)
+ return ret;
+
+ /* set enet axi clock 196M: 392/2 */
+ target = CLK_ROOT_ON | ENET_AXI_CLK_ROOT_FROM_PLL_SYS_PFD4_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2);
+ 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(ENET1_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(ENET1_TIME_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | enet2_ref |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(ENET2_REF_CLK_ROOT, target);
+
+ target = CLK_ROOT_ON | ENET2_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(ENET2_TIME_CLK_ROOT, target);
+
+#ifdef CONFIG_FEC_MXC_25M_REF_CLK
+ target = CLK_ROOT_ON | ENET_PHY_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK |
+ CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) |
+ CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1);
+ clock_set_target_val(ENET_PHY_REF_CLK_ROOT, target);
+#endif
+ /* enable clock */
+ clock_enable(CCGR_ENET1, 1);
+ clock_enable(CCGR_ENET2, 1);
+
+ return 0;
+}
+#endif
+
+/* Configure PLL/PFD freq */
+void clock_init(void)
+{
+ /* Rom has enabled PLL_ARM, PLL_DDR, PLL_SYS, PLL_ENET
+ * In u-boot, we have to:
+ * 1. Configure PFD3- PFD7 for freq we needed in u-boot
+ * 2. Set clock root for peripherals (ip channel) used in u-boot but without set rate
+ * interface. The clocks for these peripherals are enabled after this intialization.
+ * 3. Other peripherals with set clock rate interface does not be set in this function.
+ */
+
+ u32 reg;
+
+ /*
+ * Configure PFD4 to 392M
+ * 480M * 18 / 0x16 = 392M
+ */
+ reg = readl(&ccm_anatop->pfd_480b);
+
+ reg &= ~(ANATOP_PFD480B_PFD4_FRAC_MASK |
+ CCM_ANALOG_PFD_480B_PFD4_DIV1_CLKGATE_MASK);
+ reg |= ANATOP_PFD480B_PFD4_FRAC_392M_VAL;
+
+ writel(reg, &ccm_anatop->pfd_480b);
+
+ init_clk_esdhc();
+ init_clk_uart();
+ init_clk_weim();
+ init_clk_ecspi();
+ init_clk_wdog();
+#ifdef CONFIG_MXC_EPDC
+ init_clk_epdc();
+#endif
+
+ enable_usboh3_clk(1);
+
+ clock_enable(CCGR_SNVS, 1);
+
+#ifdef CONFIG_NAND_MXS
+ clock_enable(CCGR_RAWNAND, 1);
+#endif
+}
+
+#ifdef CONFIG_SECURE_BOOT
+void hab_caam_clock_enable(unsigned char enable)
+{
+ if (enable)
+ clock_enable(CCGR_CAAM, 1);
+ else
+ clock_enable(CCGR_CAAM, 0);
+}
+#endif
+
+#ifdef CONFIG_MXC_EPDC
+void epdc_clock_enable(void)
+{
+ clock_enable(CCGR_EPDC, 1);
+}
+void epdc_clock_disable(void)
+{
+ clock_enable(CCGR_EPDC, 0);
+}
+#endif
+
+/*
+ * Dump some core clockes.
+ */
+int do_mx7_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ u32 freq;
+ freq = decode_pll(PLL_CORE, MXC_HCLK);
+ printf("PLL_CORE %8d MHz\n", freq / 1000000);
+ freq = decode_pll(PLL_SYS, MXC_HCLK);
+ printf("PLL_SYS %8d MHz\n", freq / 1000000);
+ freq = decode_pll(PLL_ENET, MXC_HCLK);
+ printf("PLL_NET %8d MHz\n", freq / 1000000);
+
+ printf("\n");
+
+ printf("IPG %8d kHz\n", mxc_get_clock(MXC_IPG_CLK) / 1000);
+ printf("UART %8d kHz\n", mxc_get_clock(MXC_UART_CLK) / 1000);
+#ifdef CONFIG_MXC_SPI
+ printf("CSPI %8d kHz\n", mxc_get_clock(MXC_CSPI_CLK) / 1000);
+#endif
+ printf("AHB %8d kHz\n", mxc_get_clock(MXC_AHB_CLK) / 1000);
+ printf("AXI %8d kHz\n", mxc_get_clock(MXC_AXI_CLK) / 1000);
+ printf("DDR %8d kHz\n", mxc_get_clock(MXC_DDR_CLK) / 1000);
+ printf("USDHC1 %8d kHz\n", mxc_get_clock(MXC_ESDHC_CLK) / 1000);
+ printf("USDHC2 %8d kHz\n", mxc_get_clock(MXC_ESDHC2_CLK) / 1000);
+ printf("USDHC3 %8d kHz\n", mxc_get_clock(MXC_ESDHC3_CLK) / 1000);
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ clocks, CONFIG_SYS_MAXARGS, 1, do_mx7_showclocks,
+ "display clocks",
+ ""
+);
diff --git a/arch/arm/cpu/armv7/mx7/clock_slice.c b/arch/arm/cpu/armv7/mx7/clock_slice.c
new file mode 100644
index 0000000..ad5d504
--- /dev/null
+++ b/arch/arm/cpu/armv7/mx7/clock_slice.c
@@ -0,0 +1,757 @@
+/*
+ * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * Author:
+ * Peng Fan <Peng.Fan@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <div64.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+
+struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+static struct clk_root_map root_array[] = {
+ {ARM_A7_CLK_ROOT, CCM_CORE_CHANNEL,
+ {OSC_24M_CLK, PLL_ARM_MAIN_800M_CLK, PLL_ENET_MAIN_500M_CLK,
+ PLL_DRAM_MAIN_1066M_CLK, PLL_SYS_MAIN_480M_CLK,
+ PLL_SYS_PFD0_392M_CLK, PLL_AUDIO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {ARM_M4_CLK_ROOT, CCM_BUS_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_250M_CLK,
+ PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {ARM_M0_CLK_ROOT, CCM_BUS_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_125M_CLK,
+ PLL_SYS_PFD2_135M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {MAIN_AXI_CLK_ROOT, CCM_BUS_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_ENET_MAIN_250M_CLK, PLL_SYS_PFD5_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD7_CLK}
+ },
+ {DISP_AXI_CLK_ROOT, CCM_BUS_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_ENET_MAIN_250M_CLK, PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK,
+ PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {ENET_AXI_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_ENET_MAIN_250M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK}
+ },
+ {NAND_USDHC_BUS_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_SYS_MAIN_240M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_PFD6_CLK,
+ PLL_ENET_MAIN_250M_CLK, PLL_AUDIO_MAIN_CLK}
+ },
+ {AHB_CLK_ROOT, CCM_AHB_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_SYS_PFD0_392M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK,
+ PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {DRAM_PHYM_CLK_ROOT, CCM_DRAM_PHYM_CHANNEL,
+ {PLL_DRAM_MAIN_1066M_CLK, DRAM_PHYM_ALT_CLK_ROOT}
+ },
+ {DRAM_CLK_ROOT, CCM_DRAM_CHANNEL,
+ {PLL_DRAM_MAIN_1066M_CLK, DRAM_ALT_CLK_ROOT}
+ },
+ {DRAM_PHYM_ALT_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_SYS_MAIN_480M_CLK,
+ PLL_ENET_MAIN_500M_CLK, PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD7_CLK,
+ PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {DRAM_ALT_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_SYS_MAIN_480M_CLK,
+ PLL_ENET_MAIN_500M_CLK, PLL_ENET_MAIN_250M_CLK,
+ PLL_SYS_PFD0_392M_CLK, PLL_AUDIO_MAIN_CLK, PLL_SYS_PFD2_270M_CLK}
+ },
+ {USB_HSIC_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_USB_MAIN_480M_CLK,
+ PLL_SYS_PFD3_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD5_CLK,
+ PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
+ },
+ {PCIE_CTRL_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_250M_CLK, PLL_SYS_MAIN_240M_CLK,
+ PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_SYS_PFD6_CLK}
+ },
+ {PCIE_PHY_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_ENET_MAIN_500M_CLK,
+ EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
+ EXT_CLK_4, PLL_SYS_PFD0_392M_CLK}
+ },
+ {EPDC_PIXEL_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD5_CLK, PLL_SYS_PFD6_CLK,
+ PLL_SYS_PFD7_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {LCDIF_PIXEL_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD5_CLK, PLL_DRAM_MAIN_533M_CLK,
+ EXT_CLK_3, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {MIPI_DSI_EXTSER_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD5_CLK, PLL_SYS_PFD3_CLK,
+ PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD0_196M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_AUDIO_MAIN_CLK}
+ },
+ {MIPI_CSI_WARP_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD3_CLK,
+ PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD0_196M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_AUDIO_MAIN_CLK}
+ },
+ {MIPI_DPHY_REF_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_SYS_PFD5_CLK, REF_1M_CLK, EXT_CLK_2,
+ PLL_VIDEO_MAIN_CLK, EXT_CLK_3}
+ },
+ {SAI1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
+ PLL_ENET_MAIN_125M_CLK, EXT_CLK_2}
+ },
+ {SAI2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
+ PLL_ENET_MAIN_125M_CLK, EXT_CLK_2}
+ },
+ {SAI3_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
+ PLL_ENET_MAIN_125M_CLK, EXT_CLK_3}
+ },
+ {SPDIF_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
+ PLL_ENET_MAIN_125M_CLK, EXT_CLK_3}
+ },
+ {ENET1_REF_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_ENET_MAIN_50M_CLK,
+ PLL_ENET_MAIN_25M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, EXT_CLK_4}
+ },
+ {ENET1_TIME_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_AUDIO_MAIN_CLK,
+ EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
+ EXT_CLK_4, PLL_VIDEO_MAIN_CLK}
+ },
+ {ENET2_REF_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_ENET_MAIN_50M_CLK,
+ PLL_ENET_MAIN_25M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, EXT_CLK_4}
+ },
+ {ENET2_TIME_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_AUDIO_MAIN_CLK,
+ EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
+ EXT_CLK_4, PLL_VIDEO_MAIN_CLK}
+ },
+ {ENET_PHY_REF_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_25M_CLK, PLL_ENET_MAIN_50M_CLK,
+ PLL_ENET_MAIN_125M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD3_CLK}
+ },
+ {EIM_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_SYS_PFD3_CLK,
+ PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {NAND_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_SYS_PFD0_392M_CLK, PLL_SYS_PFD3_CLK, PLL_ENET_MAIN_500M_CLK,
+ PLL_ENET_MAIN_250M_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {QSPI_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD4_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD3_CLK, PLL_SYS_PFD2_270M_CLK,
+ PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
+ },
+ {USDHC1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD0_392M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
+ PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
+ },
+ {USDHC2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD0_392M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
+ PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
+ },
+ {USDHC3_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD0_392M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
+ PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
+ },
+ {CAN1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_SYS_MAIN_480M_CLK, PLL_ENET_MAIN_40M_CLK, PLL_USB_MAIN_480M_CLK,
+ EXT_CLK_1, EXT_CLK_4}
+ },
+ {CAN2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_SYS_MAIN_480M_CLK, PLL_ENET_MAIN_40M_CLK, PLL_USB_MAIN_480M_CLK,
+ EXT_CLK_1, EXT_CLK_3}
+ },
+ {I2C1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
+ PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
+ },
+ {I2C2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
+ PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
+ },
+ {I2C3_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
+ PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
+ },
+ {I2C4_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
+ PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
+ },
+ {UART1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
+ EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
+ },
+ {UART2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
+ EXT_CLK_3, PLL_USB_MAIN_480M_CLK}
+ },
+ {UART3_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
+ EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
+ },
+ {UART4_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
+ EXT_CLK_3, PLL_USB_MAIN_480M_CLK}
+ },
+ {UART5_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
+ EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
+ },
+ {UART6_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
+ EXT_CLK_3, PLL_USB_MAIN_480M_CLK}
+ },
+ {UART7_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
+ EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
+ },
+ {ECSPI1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
+ PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {ECSPI2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
+ PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {ECSPI3_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
+ PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {ECSPI4_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
+ PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
+ PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {PWM1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_1,
+ REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {PWM2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_1,
+ REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {PWM3_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_2,
+ REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {PWM4_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_2,
+ REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {FLEXTIMER1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_3,
+ REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {FLEXTIMER2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_3,
+ REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
+ },
+ {SIM1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_USB_MAIN_480M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_ENET_MAIN_125M_CLK, PLL_SYS_PFD7_CLK}
+ },
+ {SIM2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_USB_MAIN_480M_CLK, PLL_VIDEO_MAIN_CLK,
+ PLL_ENET_MAIN_125M_CLK, PLL_SYS_PFD7_CLK}
+ },
+ {GPT1_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
+ PLL_AUDIO_MAIN_CLK, EXT_CLK_1}
+ },
+ {GPT2_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
+ PLL_AUDIO_MAIN_CLK, EXT_CLK_2}
+ },
+ {GPT3_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
+ PLL_AUDIO_MAIN_CLK, EXT_CLK_3}
+ },
+ {GPT4_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
+ PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
+ PLL_AUDIO_MAIN_CLK, EXT_CLK_4}
+ },
+ {TRACE_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK,
+ EXT_CLK_1, EXT_CLK_3}
+ },
+ {WDOG_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK,
+ REF_1M_CLK, PLL_SYS_PFD1_166M_CLK}
+ },
+ {CSI_MCLK_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {AUDIO_MCLK_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
+ },
+ {WRCLK_CLK_ROOT, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_ENET_MAIN_40M_CLK, PLL_DRAM_MAIN_533M_CLK,
+ PLL_USB_MAIN_480M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_SYS_PFD2_270M_CLK,
+ PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD7_CLK}
+ },
+ {IPP_DO_CLKO1, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_MAIN_240M_CLK,
+ PLL_SYS_PFD0_196M_CLK, PLL_SYS_PFD3_CLK, PLL_ENET_MAIN_500M_CLK,
+ PLL_DRAM_MAIN_533M_CLK, REF_1M_CLK}
+ },
+ {IPP_DO_CLKO2, CCM_IP_CHANNEL,
+ {OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_SYS_PFD0_392M_CLK,
+ PLL_SYS_PFD1_166M_CLK, PLL_SYS_PFD4_CLK, PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK, OSC_32K_CLK}
+ },
+};
+
+/* select which entry of root_array */
+static int select(enum clk_root_index clock_id)
+{
+ int i, size;
+ struct clk_root_map *p = root_array;
+
+ size = ARRAY_SIZE(root_array);
+
+ for (i = 0; i < size; i++, p++) {
+ if (clock_id == p->entry)
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+static int src_supported(int entry, enum clk_root_src clock_src)
+{
+ int i, size;
+ struct clk_root_map *p = &root_array[entry];
+
+ if ((p->type == CCM_DRAM_PHYM_CHANNEL) || (p->type == CCM_DRAM_CHANNEL))
+ size = 2;
+ else
+ size = 8;
+
+ for (i = 0; i < size; i++) {
+ if (p->src_mux[i] == clock_src)
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+/* Set src for clock root slice. */
+int clock_set_src(enum clk_root_index clock_id, enum clk_root_src clock_src)
+{
+ int root_entry, src_entry;
+ u32 reg;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ root_entry = select(clock_id);
+ if (root_entry < 0)
+ return -EINVAL;
+
+ src_entry = src_supported(root_entry, clock_src);
+ if (src_entry < 0)
+ return -EINVAL;
+
+ reg = __raw_readl(&imx_ccm->root[clock_id].target_root);
+ reg &= ~CLK_ROOT_MUX_MASK;
+ reg |= src_entry << CLK_ROOT_MUX_SHIFT;
+ __raw_writel(reg, &imx_ccm->root[clock_id].target_root);
+
+ return 0;
+}
+
+/* Get src of a clock root slice. */
+int clock_get_src(enum clk_root_index clock_id, enum clk_root_src *p_clock_src)
+{
+ u32 val;
+ int root_entry;
+ struct clk_root_map *p;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ val = __raw_readl(&imx_ccm->root[clock_id].target_root);
+ val &= CLK_ROOT_MUX_MASK;
+ val >>= CLK_ROOT_MUX_SHIFT;
+
+ root_entry = select(clock_id);
+ if (root_entry < 0)
+ return -EINVAL;
+
+ p = &root_array[root_entry];
+ *p_clock_src = p->src_mux[val];
+
+ return 0;
+}
+
+int clock_set_prediv(enum clk_root_index clock_id, enum root_pre_div pre_div)
+{
+ int root_entry;
+ struct clk_root_map *p;
+ u32 reg;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ root_entry = select(clock_id);
+ if (root_entry < 0)
+ return -EINVAL;
+
+ p = &root_array[root_entry];
+
+ if ((p->type == CCM_CORE_CHANNEL) ||
+ (p->type == CCM_DRAM_PHYM_CHANNEL) ||
+ (p->type == CCM_DRAM_CHANNEL)) {
+ if (pre_div != CLK_ROOT_PRE_DIV1) {
+ printf("Error pre div!\n");
+ return -EINVAL;
+ }
+ }
+
+ reg = __raw_readl(&imx_ccm->root[clock_id].target_root);
+ reg &= ~CLK_ROOT_PRE_DIV_MASK;
+ reg |= pre_div << CLK_ROOT_PRE_DIV_SHIFT;
+ __raw_writel(reg, &imx_ccm->root[clock_id].target_root);
+
+ return 0;
+}
+
+int clock_get_prediv(enum clk_root_index clock_id, enum root_pre_div *pre_div)
+{
+ u32 val;
+ int root_entry;
+ struct clk_root_map *p;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ root_entry = select(clock_id);
+ if (root_entry < 0)
+ return -EINVAL;
+
+ p = &root_array[root_entry];
+
+ if ((p->type == CCM_CORE_CHANNEL) ||
+ (p->type == CCM_DRAM_PHYM_CHANNEL) ||
+ (p->type == CCM_DRAM_CHANNEL)) {
+ *pre_div = 0;
+ return 0;
+ }
+
+ val = __raw_readl(&imx_ccm->root[clock_id].target_root);
+ val &= CLK_ROOT_PRE_DIV_MASK;
+ val >>= CLK_ROOT_PRE_DIV_SHIFT;
+
+ *pre_div = val;
+
+ return 0;
+}
+
+int clock_set_postdiv(enum clk_root_index clock_id, enum root_post_div div)
+{
+ u32 reg;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ if (clock_id == DRAM_PHYM_CLK_ROOT) {
+ if (div != CLK_ROOT_POST_DIV1) {
+ printf("Error post div!\n");
+ return -EINVAL;
+ }
+ }
+
+ /* Only 3 bit post div. */
+ if ((clock_id == DRAM_CLK_ROOT) && (div > CLK_ROOT_POST_DIV7)) {
+ printf("Error post div!\n");
+ return -EINVAL;
+ }
+
+ reg = __raw_readl(&imx_ccm->root[clock_id].target_root);
+ reg &= ~CLK_ROOT_POST_DIV_MASK;
+ reg |= div << CLK_ROOT_POST_DIV_SHIFT;
+ __raw_writel(reg, &imx_ccm->root[clock_id].target_root);
+
+ return 0;
+}
+
+int clock_get_postdiv(enum clk_root_index clock_id, enum root_post_div *div)
+{
+ u32 val;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ if (clock_id == DRAM_PHYM_CLK_ROOT) {
+ *div = 0;
+ return 0;
+ }
+
+ val = __raw_readl(&imx_ccm->root[clock_id].target_root);
+ if (clock_id == DRAM_CLK_ROOT)
+ val &= DRAM_CLK_ROOT_POST_DIV_MASK;
+ else
+ val &= CLK_ROOT_POST_DIV_MASK;
+ val >>= CLK_ROOT_POST_DIV_SHIFT;
+
+ *div = val;
+
+ return 0;
+}
+
+int clock_set_autopostdiv(enum clk_root_index clock_id, enum root_auto_div div,
+ int auto_en)
+{
+ u32 val;
+ int root_entry;
+ struct clk_root_map *p;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ root_entry = select(clock_id);
+ if (root_entry < 0)
+ return -EINVAL;
+
+ p = &root_array[root_entry];
+
+ if ((p->type != CCM_BUS_CHANNEL) && (p->type != CCM_AHB_CHANNEL)) {
+ printf("Auto postdiv not supported.!\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Each time only one filed can be changed, no use target_root_set.
+ */
+ val = __raw_readl(&imx_ccm->root[clock_id].target_root);
+ val &= ~CLK_ROOT_AUTO_DIV_MASK;
+ val |= (div << CLK_ROOT_AUTO_DIV_SHIFT);
+
+ if (auto_en)
+ val |= CLK_ROOT_AUTO_EN;
+ else
+ val &= ~CLK_ROOT_AUTO_EN;
+
+ __raw_writel(val, &imx_ccm->root[clock_id].target_root);
+
+ return 0;
+}
+
+int clock_get_autopostdiv(enum clk_root_index clock_id, enum root_auto_div *div,
+ int *auto_en)
+{
+ u32 val;
+ int root_entry;
+ struct clk_root_map *p;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ root_entry = select(clock_id);
+ if (root_entry < 0)
+ return -EINVAL;
+
+ p = &root_array[root_entry];
+
+ /*
+ * Only bus/ahb channel supports auto div.
+ * If unsupported, just set auto_en and div with 0.
+ */
+ if ((p->type != CCM_BUS_CHANNEL) && (p->type != CCM_AHB_CHANNEL)) {
+ *auto_en = 0;
+ *div = 0;
+ return 0;
+ }
+
+ val = __raw_readl(&imx_ccm->root[clock_id].target_root);
+ if ((val & CLK_ROOT_AUTO_EN_MASK) == 0)
+ *auto_en = 0;
+ else
+ *auto_en = 1;
+
+ val &= CLK_ROOT_AUTO_DIV_MASK;
+ val >>= CLK_ROOT_AUTO_DIV_SHIFT;
+
+ *div = val;
+
+ return 0;
+}
+
+int clock_get_target_val(enum clk_root_index clock_id, u32 *val)
+{
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ *val = __raw_readl(&imx_ccm->root[clock_id].target_root);
+
+ return 0;
+}
+
+int clock_set_target_val(enum clk_root_index clock_id, u32 val)
+{
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ __raw_writel(val, &imx_ccm->root[clock_id].target_root);
+
+ return 0;
+}
+
+/* Auto_div and auto_en is ignored, they are rarely used. */
+int clock_root_cfg(enum clk_root_index clock_id, enum root_pre_div pre_div,
+ enum root_post_div post_div, enum clk_root_src clock_src)
+{
+ u32 val;
+ int root_entry, src_entry;
+ struct clk_root_map *p;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ root_entry = select(clock_id);
+ if (root_entry < 0)
+ return -EINVAL;
+
+ p = &root_array[root_entry];
+
+ if ((p->type == CCM_CORE_CHANNEL) ||
+ (p->type == CCM_DRAM_PHYM_CHANNEL) ||
+ (p->type == CCM_DRAM_CHANNEL)) {
+ if (pre_div != CLK_ROOT_PRE_DIV1) {
+ printf("Error pre div!\n");
+ return -EINVAL;
+ }
+ }
+
+ /* Only 3 bit post div. */
+ if (p->type == CCM_DRAM_CHANNEL) {
+ if (post_div > CLK_ROOT_POST_DIV7) {
+ printf("Error post div!\n");
+ return -EINVAL;
+ }
+ }
+
+ if (p->type == CCM_DRAM_PHYM_CHANNEL) {
+ if (post_div != CLK_ROOT_POST_DIV1) {
+ printf("Error post div!\n");
+ return -EINVAL;
+ }
+ }
+
+ src_entry = src_supported(root_entry, clock_src);
+ if (src_entry < 0)
+ return -EINVAL;
+
+ val = CLK_ROOT_ON | pre_div << CLK_ROOT_PRE_DIV_SHIFT |
+ post_div << CLK_ROOT_POST_DIV_SHIFT |
+ src_entry << CLK_ROOT_MUX_SHIFT;
+
+ __raw_writel(val, &imx_ccm->root[clock_id].target_root);
+
+ return 0;
+}
+
+int clock_root_enabled(enum clk_root_index clock_id)
+{
+ u32 val;
+
+ if (clock_id >= CLK_ROOT_MAX)
+ return -EINVAL;
+
+ /*
+ * No enable bit for DRAM controller and PHY. Just return enabled.
+ */
+ if ((clock_id == DRAM_PHYM_CLK_ROOT) || (clock_id == DRAM_CLK_ROOT))
+ return 1;
+
+ val = __raw_readl(&imx_ccm->root[clock_id].target_root);
+
+ return (val & CLK_ROOT_ENABLE_MASK) ? 1 : 0;
+}
+
+/* CCGR gate operation */
+int clock_enable(enum clk_ccgr_index index, bool enable)
+{
+ if (index >= CCGR_MAX)
+ return -EINVAL;
+
+ if (enable)
+ __raw_writel(CCM_CLK_ON_MSK,
+ &imx_ccm->ccgr_array[index].ccgr_set);
+ else
+ __raw_writel(CCM_CLK_ON_MSK,
+ &imx_ccm->ccgr_array[index].ccgr_clr);
+
+ return 0;
+}
diff --git a/arch/arm/include/asm/arch-mx7/clock.h b/arch/arm/include/asm/arch-mx7/clock.h
new file mode 100644
index 0000000..688d236
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx7/clock.h
@@ -0,0 +1,348 @@
+/*
+ * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * Author:
+ * Peng Fan <Peng.Fan@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_CLOCK_H
+#define _ASM_ARCH_CLOCK_H
+
+#include <common.h>
+#include <asm/arch/crm_regs.h>
+
+#ifdef CONFIG_SYS_MX7_HCLK
+#define MXC_HCLK CONFIG_SYS_MX7_HCLK
+#else
+#define MXC_HCLK 24000000
+#endif
+
+#ifdef CONFIG_SYS_MX7_CLK32
+#define MXC_CLK32 CONFIG_SYS_MX7_CLK32
+#else
+#define MXC_CLK32 32768
+#endif
+
+/* Mainly for compatible to imx common code. */
+enum mxc_clock {
+ MXC_ARM_CLK = 0,
+ MXC_AHB_CLK,
+ MXC_IPG_CLK,
+ MXC_UART_CLK,
+ MXC_CSPI_CLK,
+ MXC_AXI_CLK,
+ MXC_DDR_CLK,
+ MXC_ESDHC_CLK,
+ MXC_ESDHC2_CLK,
+ MXC_ESDHC3_CLK,
+ MXC_I2C_CLK,
+};
+
+/* PLL supported by i.mx7d */
+enum pll_clocks {
+ PLL_CORE, /* Core PLL */
+ PLL_SYS, /* System PLL*/
+ PLL_ENET, /* Enet PLL */
+ PLL_AUDIO, /* Audio PLL */
+ PLL_VIDEO, /* Video PLL*/
+ PLL_DDR, /* Dram PLL */
+ PLL_USB, /* USB PLL, fixed at 480MHZ */
+};
+
+/* clk src for clock root gen */
+enum clk_root_src {
+ OSC_24M_CLK,
+
+ PLL_ARM_MAIN_800M_CLK,
+
+ PLL_SYS_MAIN_480M_CLK,
+ PLL_SYS_MAIN_240M_CLK,
+ PLL_SYS_MAIN_120M_CLK,
+ PLL_SYS_PFD0_392M_CLK,
+ PLL_SYS_PFD0_196M_CLK,
+ PLL_SYS_PFD1_332M_CLK,
+ PLL_SYS_PFD1_166M_CLK,
+ PLL_SYS_PFD2_270M_CLK,
+ PLL_SYS_PFD2_135M_CLK,
+ PLL_SYS_PFD3_CLK,
+ PLL_SYS_PFD4_CLK,
+ PLL_SYS_PFD5_CLK,
+ PLL_SYS_PFD6_CLK,
+ PLL_SYS_PFD7_CLK,
+
+ PLL_ENET_MAIN_500M_CLK,
+ PLL_ENET_MAIN_250M_CLK,
+ PLL_ENET_MAIN_125M_CLK,
+ PLL_ENET_MAIN_100M_CLK,
+ PLL_ENET_MAIN_50M_CLK,
+ PLL_ENET_MAIN_40M_CLK,
+ PLL_ENET_MAIN_25M_CLK,
+
+ PLL_DRAM_MAIN_1066M_CLK,
+ PLL_DRAM_MAIN_533M_CLK,
+
+ PLL_AUDIO_MAIN_CLK,
+ PLL_VIDEO_MAIN_CLK,
+
+ PLL_USB_MAIN_480M_CLK, /* fixed at 480MHZ */
+
+ EXT_CLK_1,
+ EXT_CLK_2,
+ EXT_CLK_3,
+ EXT_CLK_4,
+
+ REF_1M_CLK,
+ OSC_32K_CLK,
+};
+
+/*
+ * Clock root index
+ */
+enum clk_root_index {
+ ARM_A7_CLK_ROOT = 0,
+ ARM_M4_CLK_ROOT = 1,
+ ARM_M0_CLK_ROOT = 2,
+ MAIN_AXI_CLK_ROOT = 16,
+ DISP_AXI_CLK_ROOT = 17,
+ ENET_AXI_CLK_ROOT = 18,
+ NAND_USDHC_BUS_CLK_ROOT = 19,
+ AHB_CLK_ROOT = 32,
+ DRAM_PHYM_CLK_ROOT = 48,
+ DRAM_CLK_ROOT = 49,
+ DRAM_PHYM_ALT_CLK_ROOT = 64,
+ DRAM_ALT_CLK_ROOT = 65,
+ USB_HSIC_CLK_ROOT = 66,
+ PCIE_CTRL_CLK_ROOT = 67,
+ PCIE_PHY_CLK_ROOT = 68,
+ EPDC_PIXEL_CLK_ROOT = 69,
+ LCDIF_PIXEL_CLK_ROOT = 70,
+ MIPI_DSI_EXTSER_CLK_ROOT = 71,
+ MIPI_CSI_WARP_CLK_ROOT = 72,
+ MIPI_DPHY_REF_CLK_ROOT = 73,
+ SAI1_CLK_ROOT = 74,
+ SAI2_CLK_ROOT = 75,
+ SAI3_CLK_ROOT = 76,
+ SPDIF_CLK_ROOT = 77,
+ ENET1_REF_CLK_ROOT = 78,
+ ENET1_TIME_CLK_ROOT = 79,
+ ENET2_REF_CLK_ROOT = 80,
+ ENET2_TIME_CLK_ROOT = 81,
+ ENET_PHY_REF_CLK_ROOT = 82,
+ EIM_CLK_ROOT = 83,
+ NAND_CLK_ROOT = 84,
+ QSPI_CLK_ROOT = 85,
+ USDHC1_CLK_ROOT = 86,
+ USDHC2_CLK_ROOT = 87,
+ USDHC3_CLK_ROOT = 88,
+ CAN1_CLK_ROOT = 89,
+ CAN2_CLK_ROOT = 90,
+ I2C1_CLK_ROOT = 91,
+ I2C2_CLK_ROOT = 92,
+ I2C3_CLK_ROOT = 93,
+ I2C4_CLK_ROOT = 94,
+ UART1_CLK_ROOT = 95,
+ UART2_CLK_ROOT = 96,
+ UART3_CLK_ROOT = 97,
+ UART4_CLK_ROOT = 98,
+ UART5_CLK_ROOT = 99,
+ UART6_CLK_ROOT = 100,
+ UART7_CLK_ROOT = 101,
+ ECSPI1_CLK_ROOT = 102,
+ ECSPI2_CLK_ROOT = 103,
+ ECSPI3_CLK_ROOT = 104,
+ ECSPI4_CLK_ROOT = 105,
+ PWM1_CLK_ROOT = 106,
+ PWM2_CLK_ROOT = 107,
+ PWM3_CLK_ROOT = 108,
+ PWM4_CLK_ROOT = 109,
+ FLEXTIMER1_CLK_ROOT = 110,
+ FLEXTIMER2_CLK_ROOT = 111,
+ SIM1_CLK_ROOT = 112,
+ SIM2_CLK_ROOT = 113,
+ GPT1_CLK_ROOT = 114,
+ GPT2_CLK_ROOT = 115,
+ GPT3_CLK_ROOT = 116,
+ GPT4_CLK_ROOT = 117,
+ TRACE_CLK_ROOT = 118,
+ WDOG_CLK_ROOT = 119,
+ CSI_MCLK_CLK_ROOT = 120,
+ AUDIO_MCLK_CLK_ROOT = 121,
+ WRCLK_CLK_ROOT = 122,
+ IPP_DO_CLKO1 = 123,
+ IPP_DO_CLKO2 = 124,
+
+ CLK_ROOT_MAX,
+};
+
+struct clk_root_setting {
+ enum clk_root_index root;
+ u32 setting;
+};
+
+/*
+ * CCGR mapping
+ */
+enum clk_ccgr_index {
+ CCGR_CPU = 0,
+ CCGR_M4 = 1,
+ CCGR_SIM_MAIN = 4,
+ CCGR_SIM_DISPLAY = 5,
+ CCGR_SIM_ENET = 6,
+ CCGR_SIM_M = 7,
+ CCGR_SIM_S = 8,
+ CCGR_SIM_WAKEUP = 9,
+ CCGR_IPMUX1 = 10,
+ CCGR_IPMUX2 = 11,
+ CCGR_IPMUX3 = 12,
+ CCGR_ROM = 16,
+ CCGR_OCRAM = 17,
+ CCGR_OCRAM_S = 18,
+ CCGR_DRAM = 19,
+ CCGR_RAWNAND = 20,
+ CCGR_QSPI = 21,
+ CCGR_WEIM = 22,
+ CCGR_ADC = 32,
+ CCGR_ANATOP = 33,
+ CCGR_SCTR = 34,
+ CCGR_OCOTP = 35,
+ CCGR_CAAM = 36,
+ CCGR_SNVS = 37,
+ CCGR_RDC = 38,
+ CCGR_MU = 39,
+ CCGR_HS = 40,
+ CCGR_DVFS = 41,
+ CCGR_QOS = 42,
+ CCGR_QOS_DISPMIX = 43,
+ CCGR_QOS_MEGAMIX = 44,
+ CCGR_CSU = 45,
+ CCGR_DBGMON = 46,
+ CCGR_DEBUG = 47,
+ CCGR_TRACE = 48,
+ CCGR_SEC_DEBUG = 49,
+ CCGR_SEMA1 = 64,
+ CCGR_SEMA2 = 65,
+ CCGR_PERFMON1 = 68,
+ CCGR_PERFMON2 = 69,
+ CCGR_SDMA = 72,
+ CCGR_CSI = 73,
+ CCGR_EPDC = 74,
+ CCGR_LCDIF = 75,
+ CCGR_PXP = 76,
+ CCGR_PCIE = 96,
+ CCGR_MIPI_CSI = 100,
+ CCGR_MIPI_DSI = 101,
+ CCGR_MIPI_MEM_PHY = 102,
+ CCGR_USB_CTRL = 104,
+ CCGR_USB_HSIC = 105,
+ CCGR_USB_PHY1 = 106,
+ CCGR_USB_PHY2 = 107,
+ CCGR_USDHC1 = 108,
+ CCGR_USDHC2 = 109,
+ CCGR_USDHC3 = 110,
+ CCGR_ENET1 = 112,
+ CCGR_ENET2 = 113,
+ CCGR_CAN1 = 116,
+ CCGR_CAN2 = 117,
+ CCGR_ECSPI1 = 120,
+ CCGR_ECSPI2 = 121,
+ CCGR_ECSPI3 = 122,
+ CCGR_ECSPI4 = 123,
+ CCGR_GPT1 = 124,
+ CCGR_GPT2 = 125,
+ CCGR_GPT3 = 126,
+ CCGR_GPT4 = 127,
+ CCGR_FTM1 = 128,
+ CCGR_FTM2 = 129,
+ CCGR_PWM1 = 132,
+ CCGR_PWM2 = 133,
+ CCGR_PWM3 = 134,
+ CCGR_PWM4 = 135,
+ CCGR_I2C1 = 136,
+ CCGR_I2C2 = 137,
+ CCGR_I2C3 = 138,
+ CCGR_I2C4 = 139,
+ CCGR_SAI1 = 140,
+ CCGR_SAI2 = 141,
+ CCGR_SAI3 = 142,
+ CCGR_SIM1 = 144,
+ CCGR_SIM2 = 145,
+ CCGR_UART1 = 148,
+ CCGR_UART2 = 149,
+ CCGR_UART3 = 150,
+ CCGR_UART4 = 151,
+ CCGR_UART5 = 152,
+ CCGR_UART6 = 153,
+ CCGR_UART7 = 154,
+ CCGR_WDOG1 = 156,
+ CCGR_WDOG2 = 157,
+ CCGR_WDOG3 = 158,
+ CCGR_WDOG4 = 159,
+ CCGR_GPIO1 = 160,
+ CCGR_GPIO2 = 161,
+ CCGR_GPIO3 = 162,
+ CCGR_GPIO4 = 163,
+ CCGR_GPIO5 = 164,
+ CCGR_GPIO6 = 165,
+ CCGR_GPIO7 = 166,
+ CCGR_IOMUX = 168,
+ CCGR_IOMUX_LPSR = 169,
+ CCGR_KPP = 170,
+
+ CCGR_SKIP,
+ CCGR_MAX,
+};
+
+/* Clock root channel */
+enum clk_root_type {
+ CCM_CORE_CHANNEL,
+ CCM_BUS_CHANNEL,
+ CCM_AHB_CHANNEL,
+ CCM_DRAM_PHYM_CHANNEL,
+ CCM_DRAM_CHANNEL,
+ CCM_IP_CHANNEL,
+};
+
+#include <asm/arch/clock_slice.h>
+
+/*
+ * entry: the clock root index
+ * type: ccm channel
+ * src_mux: each entry corresponding to the clock src, detailed info in CCM RM
+ */
+struct clk_root_map {
+ enum clk_root_index entry;
+ enum clk_root_type type;
+ uint8_t src_mux[8];
+};
+
+enum enet_freq {
+ ENET_25MHz,
+ ENET_50MHz,
+ ENET_125MHz,
+};
+
+u32 get_root_clk(enum clk_root_index clock_id);
+u32 mxc_get_clock(enum mxc_clock clk);
+u32 imx_get_uartclk(void);
+u32 imx_get_fecclk(void);
+void clock_init(void);
+#ifdef CONFIG_SYS_I2C_MXC
+int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
+#endif
+#ifdef CONFIG_FEC_MXC
+int set_clk_enet(enum enet_freq type);
+#endif
+int set_clk_qspi(void);
+int set_clk_nand(void);
+#ifdef CONFIG_MXC_OCOTP
+void enable_ocotp_clk(unsigned char enable);
+#endif
+void enable_usboh3_clk(unsigned char enable);
+#ifdef CONFIG_SECURE_BOOT
+void hab_caam_clock_enable(unsigned char enable);
+#endif
+void mxs_set_lcdclk(uint32_t base_addr, uint32_t freq);
+void enable_thermal_clk(void);
+#endif
diff --git a/arch/arm/include/asm/arch-mx7/clock_slice.h b/arch/arm/include/asm/arch-mx7/clock_slice.h
new file mode 100644
index 0000000..6ede0cd
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx7/clock_slice.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2014-2015 Freescale Semiconductor, Inc.
+ *
+ * Author:
+ * Peng Fan <Peng.Fan@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_CLOCK_SLICE_H
+#define _ASM_ARCH_CLOCK_SLICE_H
+
+enum root_pre_div {
+ CLK_ROOT_PRE_DIV1 = 0,
+ CLK_ROOT_PRE_DIV2,
+ CLK_ROOT_PRE_DIV3,
+ CLK_ROOT_PRE_DIV4,
+ CLK_ROOT_PRE_DIV5,
+ CLK_ROOT_PRE_DIV6,
+ CLK_ROOT_PRE_DIV7,
+ CLK_ROOT_PRE_DIV8,
+};
+
+enum root_post_div {
+ CLK_ROOT_POST_DIV1 = 0,
+ CLK_ROOT_POST_DIV2,
+ CLK_ROOT_POST_DIV3,
+ CLK_ROOT_POST_DIV4,
+ CLK_ROOT_POST_DIV5,
+ CLK_ROOT_POST_DIV6,
+ CLK_ROOT_POST_DIV7,
+ CLK_ROOT_POST_DIV8,
+ CLK_ROOT_POST_DIV9,
+ CLK_ROOT_POST_DIV10,
+ CLK_ROOT_POST_DIV11,
+ CLK_ROOT_POST_DIV12,
+ CLK_ROOT_POST_DIV13,
+ CLK_ROOT_POST_DIV14,
+ CLK_ROOT_POST_DIV15,
+ CLK_ROOT_POST_DIV16,
+ CLK_ROOT_POST_DIV17,
+ CLK_ROOT_POST_DIV18,
+ CLK_ROOT_POST_DIV19,
+ CLK_ROOT_POST_DIV20,
+ CLK_ROOT_POST_DIV21,
+ CLK_ROOT_POST_DIV22,
+ CLK_ROOT_POST_DIV23,
+ CLK_ROOT_POST_DIV24,
+ CLK_ROOT_POST_DIV25,
+ CLK_ROOT_POST_DIV26,
+ CLK_ROOT_POST_DIV27,
+ CLK_ROOT_POST_DIV28,
+ CLK_ROOT_POST_DIV29,
+ CLK_ROOT_POST_DIV30,
+ CLK_ROOT_POST_DIV31,
+ CLK_ROOT_POST_DIV32,
+ CLK_ROOT_POST_DIV33,
+ CLK_ROOT_POST_DIV34,
+ CLK_ROOT_POST_DIV35,
+ CLK_ROOT_POST_DIV36,
+ CLK_ROOT_POST_DIV37,
+ CLK_ROOT_POST_DIV38,
+ CLK_ROOT_POST_DIV39,
+ CLK_ROOT_POST_DIV40,
+ CLK_ROOT_POST_DIV41,
+ CLK_ROOT_POST_DIV42,
+ CLK_ROOT_POST_DIV43,
+ CLK_ROOT_POST_DIV44,
+ CLK_ROOT_POST_DIV45,
+ CLK_ROOT_POST_DIV46,
+ CLK_ROOT_POST_DIV47,
+ CLK_ROOT_POST_DIV48,
+ CLK_ROOT_POST_DIV49,
+ CLK_ROOT_POST_DIV50,
+ CLK_ROOT_POST_DIV51,
+ CLK_ROOT_POST_DIV52,
+ CLK_ROOT_POST_DIV53,
+ CLK_ROOT_POST_DIV54,
+ CLK_ROOT_POST_DIV55,
+ CLK_ROOT_POST_DIV56,
+ CLK_ROOT_POST_DIV57,
+ CLK_ROOT_POST_DIV58,
+ CLK_ROOT_POST_DIV59,
+ CLK_ROOT_POST_DIV60,
+ CLK_ROOT_POST_DIV61,
+ CLK_ROOT_POST_DIV62,
+ CLK_ROOT_POST_DIV63,
+ CLK_ROOT_POST_DIV64,
+};
+
+enum root_auto_div {
+ CLK_ROOT_AUTO_DIV1 = 0,
+ CLK_ROOT_AUTO_DIV2,
+ CLK_ROOT_AUTO_DIV4,
+ CLK_ROOT_AUTO_DIV8,
+ CLK_ROOT_AUTO_DIV16,
+};
+
+int clock_set_src(enum clk_root_index clock_id, enum clk_root_src clock_src);
+int clock_get_src(enum clk_root_index clock_id, enum clk_root_src *p_clock_src);
+int clock_set_prediv(enum clk_root_index clock_id, enum root_pre_div pre_div);
+int clock_get_prediv(enum clk_root_index clock_id, enum root_pre_div *pre_div);
+int clock_set_postdiv(enum clk_root_index clock_id, enum root_post_div div);
+int clock_get_postdiv(enum clk_root_index clock_id, enum root_post_div *div);
+int clock_set_autopostdiv(enum clk_root_index clock_id, enum root_auto_div div,
+ int auto_en);
+int clock_get_autopostdiv(enum clk_root_index clock_id, enum root_auto_div *div,
+ int *auto_en);
+int clock_get_target_val(enum clk_root_index clock_id, u32 *val);
+int clock_set_target_val(enum clk_root_index clock_id, u32 val);
+int clock_root_cfg(enum clk_root_index clock_id, enum root_pre_div pre_div,
+ enum root_post_div post_div, enum clk_root_src clock_src);
+int clock_root_enabled(enum clk_root_index clock_id);
+
+int clock_enable(enum clk_ccgr_index index, bool enable);
+#endif
--
2.1.4