[PATCH 31/33] ARM i.MX5: implement clocks using common clock framework

[heiko@sntech.de (Heiko Stübner)]

Hi Sascha,

more out of curiosity, why is the i.MX50 always excluded. Is it so vastly
different to the MX51 and MX53?


Thanks
Heiko

Am Mittwoch, 25. April 2012, 17:28:21 schrieb Sascha Hauer:
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
> ---
>  arch/arm/mach-imx/Kconfig           |    1 +
>  arch/arm/mach-imx/Makefile          |    2 +-
>  arch/arm/mach-imx/clk-imx51-imx53.c |  466 +++++++++++++++++++++++++++++++++++
>  3 files changed, 468 insertions(+), 1 deletion(-)
>  create mode 100644 arch/arm/mach-imx/clk-imx51-imx53.c
> 
> diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
> index 692de7b..eb14ae9 100644
> --- a/arch/arm/mach-imx/Kconfig
> +++ b/arch/arm/mach-imx/Kconfig
> @@ -82,6 +82,7 @@ config SOC_IMX35
>  config SOC_IMX5
>  	select CPU_V7
>  	select MXC_TZIC
> +	select COMMON_CLK
>  	select ARCH_MXC_IOMUX_V3
>  	select ARCH_HAS_CPUFREQ
>  	select ARCH_MX5
> diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
> index fdad8f4..adf2e4f 100644
> --- a/arch/arm/mach-imx/Makefile
> +++ b/arch/arm/mach-imx/Makefile
> @@ -9,7 +9,7 @@ obj-$(CONFIG_SOC_IMX27) += clk-imx27.o mm-imx27.o ehci-imx27.o
>  obj-$(CONFIG_SOC_IMX31) += mm-imx3.o cpu-imx31.o clk-imx31.o iomux-imx31.o ehci-imx31.o pm-imx3.o
>  obj-$(CONFIG_SOC_IMX35) += mm-imx3.o cpu-imx35.o clock-imx35.o ehci-imx35.o pm-imx3.o
>  
> -obj-$(CONFIG_SOC_IMX5) += cpu-imx5.o mm-imx5.o clock-mx51-mx53.o ehci-imx5.o pm-imx5.o cpu_op-mx51.o
> +obj-$(CONFIG_SOC_IMX5) += cpu-imx5.o mm-imx5.o clk-imx51-imx53.o ehci-imx5.o pm-imx5.o cpu_op-mx51.o
>  
>  obj-$(CONFIG_COMMON_CLK) += clk-pllv1.o clk-pllv2.o clk-pllv3.o clk-gate2.o \
>  			    clk-pfd.o clk-busy.o
> diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
> new file mode 100644
> index 0000000..66633d5
> --- /dev/null
> +++ b/arch/arm/mach-imx/clk-imx51-imx53.c
> @@ -0,0 +1,466 @@
> +/*
> + * Copyright (C) 2011 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + */
> +#include <linux/mm.h>
> +#include <linux/delay.h>
> +#include <linux/clk.h>
> +#include <linux/io.h>
> +#include <linux/clkdev.h>
> +#include <linux/of.h>
> +#include <linux/err.h>
> +
> +#include <mach/hardware.h>
> +#include <mach/common.h>
> +
> +#include "crm-regs-imx5.h"
> +#include "clk.h"
> +
> +/* Low-power Audio Playback Mode clock */
> +static const char *lp_apm_sel[] = { "osc", };
> +
> +/* This is used multiple times */
> +static const char *standard_pll_sel[] = { "pll1_sw", "pll2_sw", "pll3_sw", "lp_apm", };
> +static const char *periph_apm_sel[] = { "pll1_sw", "pll3_sw", "lp_apm", };
> +static const char *main_bus_sel[] = { "pll2_sw", "periph_apm", };
> +static const char *per_lp_apm_sel[] = { "main_bus", "lp_apm", };
> +static const char *per_root_sel[] = { "per_podf", "ipg", };
> +static const char *esdhc_c_sel[] = { "esdhc_a_podf", "esdhc_b_podf", };
> +static const char *esdhc_d_sel[] = { "esdhc_a_podf", "esdhc_b_podf", };
> +static const char *emi_slow_sel[] = { "main_bus", "ahb", };
> +static const char *usb_phy_sel_str[] = { "osc", "usb_phy_podf", };
> +static const char *mx51_ipu_di0_sel[] = { "di_pred", "osc", "ckih1", "tve_di", };
> +static const char *mx53_ipu_di0_sel[] = { "di_pred", "osc", "ckih1", "di_pll4_podf", "dummy", "ldb_di0", };
> +static const char *mx53_ldb_di0_sel[] = { "pll3_sw", "pll4_sw", };
> +static const char *mx51_ipu_di1_sel[] = { "di_pred", "osc", "ckih1", "tve_di", "ipp_di1", };
> +static const char *mx53_ipu_di1_sel[] = { "di_pred", "osc", "ckih1", "tve_di", "ipp_di1", "ldb_di1", };
> +static const char *mx53_ldb_di1_sel[] = { "pll3_sw", "pll4_sw", };
> +static const char *mx51_tve_ext_sel[] = { "osc", "ckih1", };
> +static const char *mx53_tve_ext_sel[] = { "pll4_sw", "ckih1", };
> +static const char *tve_sel[] = { "tve_pred", "tve_ext_sel", };
> +static const char *ipu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", };
> +static const char *vpu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", };
> +
> +enum imx5_clks {
> +	dummy, ckil, osc, ckih1, ckih2, ahb, ipg, axi_a, axi_b, uart_pred,
> +	uart_root, esdhc_a_pred, esdhc_b_pred, esdhc_c_s, esdhc_d_s,
> +	emi_sel, emi_slow_podf, nfc_podf, ecspi_pred, ecspi_podf, usboh3_pred,
> +	usboh3_podf, usb_phy_pred, usb_phy_podf, cpu_podf, di_pred, tve_di,
> +	tve_s, uart1_ipg_gate, uart1_per_gate, uart2_ipg_gate,
> +	uart2_per_gate, uart3_ipg_gate, uart3_per_gate, i2c1_gate, i2c2_gate,
> +	gpt_ipg_gate, pwm1_ipg_gate, pwm1_hf_gate, pwm2_ipg_gate, pwm2_hf_gate,
> +	gpt_gate, fec_gate, usboh3_per_gate, esdhc1_ipg_gate, esdhc2_ipg_gate,
> +	esdhc3_ipg_gate, esdhc4_ipg_gate, ssi1_ipg_gate, ssi2_ipg_gate,
> +	ssi3_ipg_gate, ecspi1_ipg_gate, ecspi1_per_gate, ecspi2_ipg_gate,
> +	ecspi2_per_gate, cspi_ipg_gate, sdma_gate, emi_slow_gate, ipu_s,
> +	ipu_gate, nfc_gate, ipu_di1_gate, vpu_s, vpu_gate,
> +	vpu_reference_gate, uart4_ipg_gate, uart4_per_gate, uart5_ipg_gate,
> +	uart5_per_gate, tve_gate, tve_pred, esdhc1_per_gate, esdhc2_per_gate,
> +	esdhc3_per_gate, esdhc4_per_gate, usb_phy_gate, hsi2c_gate,
> +	mipi_hsc1_gate, mipi_hsc2_gate, mipi_esc_gate, mipi_hsp_gate,
> +	ldb_di1_div_3_5, ldb_di1_div, ldb_di0_div_3_5, ldb_di0_div,
> +	ldb_di1_gate, can2_serial_gate, can2_ipg_gate, i2c3_gate, lp_apm,
> +	periph_apm, main_bus, ahb_max, aips_tz1, aips_tz2, tmax1, tmax2,
> +	tmax3, spba, uart_sel, esdhc_a_sel, esdhc_b_sel, esdhc_a_podf,
> +	esdhc_b_podf, ecspi_sel, usboh3_sel, usb_phy_sel, iim_gate,
> +	usboh3_gate, emi_fast_gate, ipu_di0_gate,gpc_dvfs, pll1_sw, pll2_sw,
> +	pll3_sw, ipu_di0_sel, ipu_di1_sel, tve_ext_sel, mx51_mipi, pll4_sw,
> +	ldb_di1_sel, di_pll4_podf, ldb_di0_sel, ldb_di0_gate, usb_phy1_gate,
> +	usb_phy2_gate, per_lp_apm, per_pred1, per_pred2, per_podf, per_root,
> +	clk_max
> +};
> +
> +static struct clk *clk[clk_max];
> +
> +static void __init mx5_clocks_common_init(unsigned long rate_ckil,
> +		unsigned long rate_osc, unsigned long rate_ckih1,
> +		unsigned long rate_ckih2)
> +{
> +	int i;
> +
> +	clk[dummy] = imx_clk_fixed("dummy", 0);
> +	clk[ckil] = imx_clk_fixed("ckil", rate_ckil);
> +	clk[osc] = imx_clk_fixed("osc", rate_osc);
> +	clk[ckih1] = imx_clk_fixed("ckih1", rate_ckih1);
> +	clk[ckih2] = imx_clk_fixed("ckih2", rate_ckih2);
> +
> +	clk[lp_apm] = imx_clk_mux("lp_apm", MXC_CCM_CCSR, 9, 1,
> +				lp_apm_sel, ARRAY_SIZE(lp_apm_sel));
> +	clk[periph_apm] = imx_clk_mux("periph_apm", MXC_CCM_CBCMR, 12, 2,
> +				periph_apm_sel, ARRAY_SIZE(periph_apm_sel));
> +	clk[main_bus] = imx_clk_mux("main_bus", MXC_CCM_CBCDR, 25, 1,
> +				main_bus_sel, ARRAY_SIZE(main_bus_sel));
> +	clk[per_lp_apm] = imx_clk_mux("per_lp_apm", MXC_CCM_CBCDR, 1, 1,
> +				per_lp_apm_sel, ARRAY_SIZE(per_lp_apm_sel));
> +	clk[per_pred1] = imx_clk_divider("per_pred1", "per_lp_apm", MXC_CCM_CBCDR, 6, 2);
> +	clk[per_pred2] = imx_clk_divider("per_pred2", "per_pred1", MXC_CCM_CBCDR, 3, 3);
> +	clk[per_podf] = imx_clk_divider("per_podf", "per_pred2", MXC_CCM_CBCDR, 0, 3);
> +	clk[per_root] = imx_clk_mux("per_root", MXC_CCM_CBCDR, 1, 0,
> +				per_root_sel, ARRAY_SIZE(per_root_sel));
> +	clk[ahb] = imx_clk_divider("ahb", "main_bus", MXC_CCM_CBCDR, 10, 3);
> +	clk[ahb_max] = imx_clk_gate2("ahb_max", "ahb", MXC_CCM_CCGR0, 28);
> +	clk[aips_tz1] = imx_clk_gate2("aips_tz1", "ahb", MXC_CCM_CCGR0, 24);
> +	clk[aips_tz2] = imx_clk_gate2("aips_tz2", "ahb", MXC_CCM_CCGR0, 26);
> +	clk[tmax1] = imx_clk_gate2("tmax1", "ahb", MXC_CCM_CCGR1, 0);
> +	clk[tmax2] = imx_clk_gate2("tmax2", "ahb", MXC_CCM_CCGR1, 2);
> +	clk[tmax3] = imx_clk_gate2("tmax3", "ahb", MXC_CCM_CCGR1, 4);
> +	clk[spba] = imx_clk_gate2("spba", "ipg", MXC_CCM_CCGR5, 0);
> +	clk[ipg] = imx_clk_divider("ipg", "ahb", MXC_CCM_CBCDR, 8, 2);
> +	clk[axi_a] = imx_clk_divider("axi_a", "main_bus", MXC_CCM_CBCDR, 16, 3);
> +	clk[axi_b] = imx_clk_divider("axi_b", "main_bus", MXC_CCM_CBCDR, 19, 3);
> +	clk[uart_sel] = imx_clk_mux("uart_sel", MXC_CCM_CSCMR1, 24, 2,
> +				standard_pll_sel, ARRAY_SIZE(standard_pll_sel));
> +	clk[uart_pred] = imx_clk_divider("uart_pred", "uart_sel", MXC_CCM_CSCDR1, 3, 3);
> +	clk[uart_root] = imx_clk_divider("uart_root", "uart_pred", MXC_CCM_CSCDR1, 0, 3);
> +
> +	clk[esdhc_a_sel] = imx_clk_mux("esdhc_a_sel", MXC_CCM_CSCMR1, 20, 2,
> +				standard_pll_sel, ARRAY_SIZE(standard_pll_sel));
> +	clk[esdhc_b_sel] = imx_clk_mux("esdhc_b_sel", MXC_CCM_CSCMR1, 16, 2,
> +				standard_pll_sel, ARRAY_SIZE(standard_pll_sel));
> +	clk[esdhc_a_pred] = imx_clk_divider("esdhc_a_pred", "esdhc_a_sel", MXC_CCM_CSCDR1, 16, 3);
> +	clk[esdhc_a_podf] = imx_clk_divider("esdhc_a_podf", "esdhc_a_pred", MXC_CCM_CSCDR1, 11, 3);
> +	clk[esdhc_b_pred] = imx_clk_divider("esdhc_b_pred", "esdhc_b_sel", MXC_CCM_CSCDR1, 22, 3);
> +	clk[esdhc_b_podf] = imx_clk_divider("esdhc_b_podf", "esdhc_b_pred", MXC_CCM_CSCDR1, 19, 3);
> +	clk[esdhc_c_s] = imx_clk_mux("esdhc_c_sel", MXC_CCM_CSCMR1, 19, 1, esdhc_c_sel, ARRAY_SIZE(esdhc_c_sel));
> +	clk[esdhc_d_s] = imx_clk_mux("esdhc_d_sel", MXC_CCM_CSCMR1, 18, 1, esdhc_d_sel, ARRAY_SIZE(esdhc_d_sel));
> +
> +	clk[emi_sel] = imx_clk_mux("emi_sel", MXC_CCM_CBCDR, 26, 1,
> +				emi_slow_sel, ARRAY_SIZE(emi_slow_sel));
> +	clk[emi_slow_podf] = imx_clk_divider("emi_slow_podf", "emi_sel", MXC_CCM_CBCDR, 22, 3);
> +	clk[nfc_podf] = imx_clk_divider("nfc_podf", "emi_slow_podf", MXC_CCM_CBCDR, 13, 3);
> +	clk[ecspi_sel] = imx_clk_mux("ecspi_sel", MXC_CCM_CSCMR1, 4, 2,
> +				standard_pll_sel, ARRAY_SIZE(standard_pll_sel));
> +	clk[ecspi_pred] = imx_clk_divider("ecspi_pred", "ecspi_sel", MXC_CCM_CSCDR2, 25, 3);
> +	clk[ecspi_podf] = imx_clk_divider("ecspi_podf", "ecspi_pred", MXC_CCM_CSCDR2, 19, 6);
> +	clk[usboh3_sel] = imx_clk_mux("usboh3_sel", MXC_CCM_CSCMR1, 22, 2,
> +				standard_pll_sel, ARRAY_SIZE(standard_pll_sel));
> +	clk[usboh3_pred] = imx_clk_divider("usboh3_pred", "usboh3_sel", MXC_CCM_CSCDR1, 8, 3);
> +	clk[usboh3_podf] = imx_clk_divider("usboh3_podf", "usboh3_pred", MXC_CCM_CSCDR1, 6, 2);
> +	clk[usb_phy_pred] = imx_clk_divider("usb_phy_pred", "pll3_sw", MXC_CCM_CDCDR, 3, 3);
> +	clk[usb_phy_podf] = imx_clk_divider("usb_phy_podf", "usb_phy_pred", MXC_CCM_CDCDR, 0, 3);
> +	clk[usb_phy_sel] = imx_clk_mux("usb_phy_sel", MXC_CCM_CSCMR1, 26, 1,
> +				usb_phy_sel_str, ARRAY_SIZE(usb_phy_sel_str));
> +	clk[cpu_podf] = imx_clk_divider("cpu_podf", "pll1_sw", MXC_CCM_CACRR, 0, 3);
> +	clk[di_pred] = imx_clk_divider("di_pred", "pll3_sw", MXC_CCM_CDCDR, 6, 3);
> +	clk[tve_di] = imx_clk_fixed("tve_di", 65000000); /* FIXME */
> +	clk[tve_s] = imx_clk_mux("tve_sel", MXC_CCM_CSCMR1, 7, 1, tve_sel, ARRAY_SIZE(tve_sel));
> +	clk[iim_gate] = imx_clk_gate2("iim_gate", "ipg", MXC_CCM_CCGR0, 30);
> +	clk[uart1_ipg_gate] = imx_clk_gate2("uart1_ipg_gate", "ipg", MXC_CCM_CCGR1, 6);
> +	clk[uart1_per_gate] = imx_clk_gate2("uart1_per_gate", "uart_root", MXC_CCM_CCGR1, 8);
> +	clk[uart2_ipg_gate] = imx_clk_gate2("uart2_ipg_gate", "ipg", MXC_CCM_CCGR1, 10);
> +	clk[uart2_per_gate] = imx_clk_gate2("uart2_per_gate", "uart_root", MXC_CCM_CCGR1, 12);
> +	clk[uart3_ipg_gate] = imx_clk_gate2("uart3_ipg_gate", "ipg", MXC_CCM_CCGR1, 14);
> +	clk[uart3_per_gate] = imx_clk_gate2("uart3_per_gate", "uart_root", MXC_CCM_CCGR1, 16);
> +	clk[i2c1_gate] = imx_clk_gate2("i2c1_gate", "per_root", MXC_CCM_CCGR1, 18);
> +	clk[i2c2_gate] = imx_clk_gate2("i2c2_gate", "per_root", MXC_CCM_CCGR1, 20);
> +	clk[gpt_ipg_gate] = imx_clk_gate2("gpt_ipg_gate", "ipg", MXC_CCM_CCGR2, 20);
> +	clk[pwm1_ipg_gate] = imx_clk_gate2("pwm1_ipg_gate", "ipg", MXC_CCM_CCGR2, 10);
> +	clk[pwm1_hf_gate] = imx_clk_gate2("pwm1_hf_gate", "ipg", MXC_CCM_CCGR2, 12);
> +	clk[pwm2_ipg_gate] = imx_clk_gate2("pwm2_ipg_gate", "ipg", MXC_CCM_CCGR2, 14);
> +	clk[pwm2_hf_gate] = imx_clk_gate2("pwm2_hf_gate", "ipg", MXC_CCM_CCGR2, 16);
> +	clk[gpt_gate] = imx_clk_gate2("gpt_gate", "ipg", MXC_CCM_CCGR2, 18);
> +	clk[fec_gate] = imx_clk_gate2("fec_gate", "ipg", MXC_CCM_CCGR2, 24);
> +	clk[usboh3_gate] = imx_clk_gate2("usboh3_gate", "ipg", MXC_CCM_CCGR2, 26);
> +	clk[usboh3_per_gate] = imx_clk_gate2("usboh3_per_gate", "usboh3_podf", MXC_CCM_CCGR2, 28);
> +	clk[esdhc1_ipg_gate] = imx_clk_gate2("esdhc1_ipg_gate", "ipg", MXC_CCM_CCGR3, 0);
> +	clk[esdhc2_ipg_gate] = imx_clk_gate2("esdhc2_ipg_gate", "ipg", MXC_CCM_CCGR3, 4);
> +	clk[esdhc3_ipg_gate] = imx_clk_gate2("esdhc3_ipg_gate", "ipg", MXC_CCM_CCGR3, 8);
> +	clk[esdhc4_ipg_gate] = imx_clk_gate2("esdhc4_ipg_gate", "ipg", MXC_CCM_CCGR3, 12);
> +	clk[ssi1_ipg_gate] = imx_clk_gate2("ssi1_ipg_gate", "ipg", MXC_CCM_CCGR3, 16);
> +	clk[ssi2_ipg_gate] = imx_clk_gate2("ssi2_ipg_gate", "ipg", MXC_CCM_CCGR3, 18);
> +	clk[ssi3_ipg_gate] = imx_clk_gate2("ssi3_ipg_gate", "ipg", MXC_CCM_CCGR3, 20);
> +	clk[ecspi1_ipg_gate] = imx_clk_gate2("ecspi1_ipg_gate", "ipg", MXC_CCM_CCGR4, 18);
> +	clk[ecspi1_per_gate] = imx_clk_gate2("ecspi1_per_gate", "ecspi_podf", MXC_CCM_CCGR4, 20);
> +	clk[ecspi2_ipg_gate] = imx_clk_gate2("ecspi2_ipg_gate", "ipg", MXC_CCM_CCGR4, 22);
> +	clk[ecspi2_per_gate] = imx_clk_gate2("ecspi2_per_gate", "ecspi_podf", MXC_CCM_CCGR4, 24);
> +	clk[cspi_ipg_gate] = imx_clk_gate2("cspi_ipg_gate", "ipg", MXC_CCM_CCGR4, 26);
> +	clk[sdma_gate] = imx_clk_gate2("sdma_gate", "ipg", MXC_CCM_CCGR4, 30);
> +	clk[emi_fast_gate] = imx_clk_gate2("emi_fast_gate", "dummy", MXC_CCM_CCGR5, 14);
> +	clk[emi_slow_gate] = imx_clk_gate2("emi_slow_gate", "emi_slow_podf", MXC_CCM_CCGR5, 16);
> +	clk[ipu_s] = imx_clk_mux("ipu_sel", MXC_CCM_CBCMR, 6, 2, ipu_sel, ARRAY_SIZE(ipu_sel));
> +	clk[ipu_gate] = imx_clk_gate2("ipu_gate", "ipu_sel", MXC_CCM_CCGR5, 10);
> +	clk[nfc_gate] = imx_clk_gate2("nfc_gate", "nfc_podf", MXC_CCM_CCGR5, 20);
> +	clk[ipu_di0_gate] = imx_clk_gate2("ipu_di0_gate", "ipu_di0_sel", MXC_CCM_CCGR6, 10);
> +	clk[ipu_di1_gate] = imx_clk_gate2("ipu_di1_gate", "ipu_di1_sel", MXC_CCM_CCGR6, 12);
> +	clk[vpu_s] = imx_clk_mux("vpu_sel", MXC_CCM_CBCMR, 14, 2, vpu_sel, ARRAY_SIZE(vpu_sel));
> +	clk[vpu_gate] = imx_clk_gate2("vpu_gate", "vpu_sel", MXC_CCM_CCGR5, 6);
> +	clk[vpu_reference_gate] = imx_clk_gate2("vpu_reference_gate", "osc", MXC_CCM_CCGR5, 8);
> +	clk[uart4_ipg_gate] = imx_clk_gate2("uart4_ipg_gate", "ipg", MXC_CCM_CCGR7, 8);
> +	clk[uart4_per_gate] = imx_clk_gate2("uart4_per_gate", "uart_root", MXC_CCM_CCGR7, 10);
> +	clk[uart5_ipg_gate] = imx_clk_gate2("uart5_ipg_gate", "ipg", MXC_CCM_CCGR7, 12);
> +	clk[uart5_per_gate] = imx_clk_gate2("uart5_per_gate", "uart_root", MXC_CCM_CCGR7, 14);
> +	clk[gpc_dvfs] = imx_clk_gate2("gpc_dvfs", "dummy", MXC_CCM_CCGR5, 24);
> +
> +	for (i = 0; i < ARRAY_SIZE(clk); i++)
> +		if (IS_ERR(clk[i]))
> +			pr_err("i.MX5 clk %d: register failed with %ld\n",
> +				i, PTR_ERR(clk[i]));
> +	
> +	clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
> +	clk_register_clkdev(clk[gpt_ipg_gate], "ipg", "imx-gpt.0");
> +	clk_register_clkdev(clk[uart1_per_gate], "per", "imx21-uart.0");
> +	clk_register_clkdev(clk[uart1_ipg_gate], "ipg", "imx21-uart.0");
> +	clk_register_clkdev(clk[uart2_per_gate], "per", "imx21-uart.1");
> +	clk_register_clkdev(clk[uart2_ipg_gate], "ipg", "imx21-uart.1");
> +	clk_register_clkdev(clk[uart3_per_gate], "per", "imx21-uart.2");
> +	clk_register_clkdev(clk[uart3_ipg_gate], "ipg", "imx21-uart.2");
> +	clk_register_clkdev(clk[uart4_per_gate], "per", "imx21-uart.3");
> +	clk_register_clkdev(clk[uart4_ipg_gate], "ipg", "imx21-uart.3");
> +	clk_register_clkdev(clk[uart5_per_gate], "per", "imx21-uart.4");
> +	clk_register_clkdev(clk[uart5_ipg_gate], "ipg", "imx21-uart.4");
> +	clk_register_clkdev(clk[ecspi1_per_gate], "per", "imx51-ecspi.0");
> +	clk_register_clkdev(clk[ecspi1_ipg_gate], "ipg", "imx51-ecspi.0");
> +	clk_register_clkdev(clk[ecspi2_per_gate], "per", "imx51-ecspi.1");
> +	clk_register_clkdev(clk[ecspi2_ipg_gate], "ipg", "imx51-ecspi.1");
> +	clk_register_clkdev(clk[cspi_ipg_gate], NULL, "imx51-cspi.0");
> +	clk_register_clkdev(clk[pwm1_ipg_gate], "pwm", "mxc_pwm.0");
> +	clk_register_clkdev(clk[pwm2_ipg_gate], "pwm", "mxc_pwm.1");
> +	clk_register_clkdev(clk[i2c1_gate], NULL, "imx-i2c.0");
> +	clk_register_clkdev(clk[i2c2_gate], NULL, "imx-i2c.1");
> +	clk_register_clkdev(clk[usboh3_per_gate], "per", "mxc-ehci.0");
> +	clk_register_clkdev(clk[usboh3_gate], "ipg", "mxc-ehci.0");
> +	clk_register_clkdev(clk[usboh3_gate], "ahb", "mxc-ehci.0");
> +	clk_register_clkdev(clk[usboh3_per_gate], "per", "mxc-ehci.1");
> +	clk_register_clkdev(clk[usboh3_gate], "ipg", "mxc-ehci.1");
> +	clk_register_clkdev(clk[usboh3_gate], "ahb", "mxc-ehci.1");
> +	clk_register_clkdev(clk[usboh3_per_gate], "per", "mxc-ehci.2");
> +	clk_register_clkdev(clk[usboh3_gate], "ipg", "mxc-ehci.2");
> +	clk_register_clkdev(clk[usboh3_gate], "ahb", "mxc-ehci.2");
> +	clk_register_clkdev(clk[usboh3_per_gate], "per", "fsl-usb2-udc");
> +	clk_register_clkdev(clk[usboh3_gate], "ipg", "fsl-usb2-udc");
> +	clk_register_clkdev(clk[usboh3_gate], "ahb", "fsl-usb2-udc");
> +	clk_register_clkdev(clk[nfc_gate], NULL, "mxc_nand");
> +	clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.0");
> +	clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.1");
> +	clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.2");
> +	clk_register_clkdev(clk[sdma_gate], NULL, "imx35-sdma");
> +	clk_register_clkdev(clk[cpu_podf], "cpu", NULL);
> +	clk_register_clkdev(clk[iim_gate], "iim", NULL);
> +	clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.0");
> +	clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.1");
> +	clk_register_clkdev(clk[dummy], NULL, "imx-keypad");
> +	clk_register_clkdev(clk[tve_gate], NULL, "imx-tve.0");
> +	clk_register_clkdev(clk[ipu_di1_gate], "di1", "imx-tve.0");
> +
> +	/* Set SDHC parents to be PLL2 */
> +	clk_set_parent(clk[esdhc_a_sel], clk[pll2_sw]);
> +	clk_set_parent(clk[esdhc_b_sel], clk[pll2_sw]);
> +
> +	/* move usb phy clk to 24MHz */
> +	clk_set_parent(clk[usb_phy_sel], clk[osc]);
> +
> +	clk_prepare_enable(clk[gpc_dvfs]);
> +	clk_prepare_enable(clk[ahb_max]); /* esdhc3 */
> +	clk_prepare_enable(clk[aips_tz1]);
> +	clk_prepare_enable(clk[aips_tz2]); /* fec */
> +	clk_prepare_enable(clk[spba]);
> +	clk_prepare_enable(clk[emi_fast_gate]); /* fec */
> +	clk_prepare_enable(clk[tmax1]);
> +	clk_prepare_enable(clk[tmax2]); /* esdhc2, fec */
> +	clk_prepare_enable(clk[tmax3]); /* esdhc1, esdhc4 */
> +}
> +
> +int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
> +			unsigned long rate_ckih1, unsigned long rate_ckih2)
> +{
> +	int i;
> +
> +	clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX51_DPLL1_BASE);
> +	clk[pll2_sw] = imx_clk_pllv2("pll2_sw", "osc", MX51_DPLL2_BASE);
> +	clk[pll3_sw] = imx_clk_pllv2("pll3_sw", "osc", MX51_DPLL3_BASE);
> +	clk[ipu_di0_sel] = imx_clk_mux("ipu_di0_sel", MXC_CCM_CSCMR2, 26, 3,
> +				mx51_ipu_di0_sel, ARRAY_SIZE(mx51_ipu_di0_sel));
> +	clk[ipu_di1_sel] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3,
> +				mx51_ipu_di1_sel, ARRAY_SIZE(mx51_ipu_di1_sel));
> +	clk[tve_ext_sel] = imx_clk_mux("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1,
> +				mx51_tve_ext_sel, ARRAY_SIZE(mx51_tve_ext_sel));
> +	clk[tve_gate] = imx_clk_gate2("tve_gate", "tve_sel", MXC_CCM_CCGR2, 30);
> +	clk[tve_pred] = imx_clk_divider("tve_pred", "pll3_sw", MXC_CCM_CDCDR, 28, 3);
> +	clk[esdhc1_per_gate] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2);
> +	clk[esdhc2_per_gate] = imx_clk_gate2("esdhc2_per_gate", "esdhc_b_podf", MXC_CCM_CCGR3, 6);
> +	clk[esdhc3_per_gate] = imx_clk_gate2("esdhc3_per_gate", "esdhc_c_sel", MXC_CCM_CCGR3, 10);
> +	clk[esdhc4_per_gate] = imx_clk_gate2("esdhc4_per_gate", "esdhc_d_sel", MXC_CCM_CCGR3, 14);
> +	clk[usb_phy_gate] = imx_clk_gate2("usb_phy_gate", "usb_phy_sel", MXC_CCM_CCGR2, 0);
> +	clk[hsi2c_gate] = imx_clk_gate2("hsi2c_gate", "ipg", MXC_CCM_CCGR1, 22);
> +	clk[mipi_hsc1_gate] = imx_clk_gate2("mipi_hsc1_gate", "ipg", MXC_CCM_CCGR4, 6);
> +	clk[mipi_hsc2_gate] = imx_clk_gate2("mipi_hsc2_gate", "ipg", MXC_CCM_CCGR4, 8);
> +	clk[mipi_esc_gate] = imx_clk_gate2("mipi_esc_gate", "ipg", MXC_CCM_CCGR4, 10);
> +	clk[mipi_hsp_gate] = imx_clk_gate2("mipi_hsp_gate", "ipg", MXC_CCM_CCGR4, 12);
> +
> +	for (i = 0; i < ARRAY_SIZE(clk); i++)
> +		if (IS_ERR(clk[i]))
> +			pr_err("i.MX51 clk %d: register failed with %ld\n",
> +				i, PTR_ERR(clk[i]));
> +
> +	mx5_clocks_common_init(rate_ckil, rate_osc, rate_ckih1, rate_ckih2);
> +
> +	clk_register_clkdev(clk[hsi2c_gate], NULL, "imx-i2c.2");
> +	clk_register_clkdev(clk[mx51_mipi], "mipi_hsp", NULL);
> +	clk_register_clkdev(clk[vpu_gate], NULL, "imx51-vpu.0");
> +	clk_register_clkdev(clk[fec_gate], NULL, "imx27-fec.0");
> +	clk_register_clkdev(clk[gpc_dvfs], "gpc_dvfs", NULL);
> +	clk_register_clkdev(clk[ipu_gate], "bus", "imx51-ipu");
> +	clk_register_clkdev(clk[ipu_di0_gate], "di0", "imx51-ipu");
> +	clk_register_clkdev(clk[ipu_di1_gate], "di1", "imx51-ipu");
> +	clk_register_clkdev(clk[ipu_gate], "hsp", "imx51-ipu");
> +	clk_register_clkdev(clk[usb_phy_gate], "phy", "mxc-ehci.0");
> +	clk_register_clkdev(clk[esdhc1_ipg_gate], "ipg", "sdhci-esdhc-imx51.0");
> +	clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx51.0");
> +	clk_register_clkdev(clk[esdhc1_per_gate], "per", "sdhci-esdhc-imx51.0");
> +	clk_register_clkdev(clk[esdhc2_ipg_gate], "ipg", "sdhci-esdhc-imx51.1");
> +	clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx51.1");
> +	clk_register_clkdev(clk[esdhc2_per_gate], "per", "sdhci-esdhc-imx51.1");
> +	clk_register_clkdev(clk[esdhc3_ipg_gate], "ipg", "sdhci-esdhc-imx51.2");
> +	clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx51.2");
> +	clk_register_clkdev(clk[esdhc3_per_gate], "per", "sdhci-esdhc-imx51.2");
> +	clk_register_clkdev(clk[esdhc4_ipg_gate], "ipg", "sdhci-esdhc-imx51.3");
> +	clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx51.3");
> +	clk_register_clkdev(clk[esdhc4_per_gate], "per", "sdhci-esdhc-imx51.3");
> +
> +	/* set the usboh3 parent to pll2_sw */
> +	clk_set_parent(clk[usboh3_sel], clk[pll2_sw]);
> +
> +	/* set SDHC root clock to 166.25MHZ*/
> +	clk_set_rate(clk[esdhc_a_podf], 166250000);
> +	clk_set_rate(clk[esdhc_b_podf], 166250000);
> +
> +	/* System timer */
> +	mxc_timer_init(NULL, MX51_IO_ADDRESS(MX51_GPT1_BASE_ADDR),
> +		MX51_INT_GPT);
> +
> +	clk_prepare_enable(clk[iim_gate]);
> +	imx_print_silicon_rev("i.MX51", mx51_revision());
> +	clk_disable_unprepare(clk[iim_gate]);
> +
> +	return 0;
> +}
> +
> +int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
> +			unsigned long rate_ckih1, unsigned long rate_ckih2)
> +{
> +	int i;
> +	unsigned long r;
> +
> +	clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE);
> +	clk[pll2_sw] = imx_clk_pllv2("pll2_sw", "osc", MX53_DPLL2_BASE);
> +	clk[pll3_sw] = imx_clk_pllv2("pll3_sw", "osc", MX53_DPLL3_BASE);
> +	clk[pll4_sw] = imx_clk_pllv2("pll4_sw", "osc", MX53_DPLL4_BASE);
> +
> +	clk[ldb_di1_sel] = imx_clk_mux("ldb_di1_sel", MXC_CCM_CSCMR2, 9, 1,
> +				mx53_ldb_di1_sel, ARRAY_SIZE(mx53_ldb_di1_sel));
> +	clk[ldb_di1_div_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7);
> +	clk[ldb_di1_div] = imx_clk_divider("ldb_di1_div", "ldb_di1_div_3_5", MXC_CCM_CSCMR2, 11, 1);
> +	clk[di_pll4_podf] = imx_clk_divider("di_pll4_podf", "pll4_sw", MXC_CCM_CDCDR, 16, 3);
> +	clk[ldb_di0_sel] = imx_clk_mux("ldb_di0_sel", MXC_CCM_CSCMR2, 8, 1,
> +				mx53_ldb_di0_sel, ARRAY_SIZE(mx53_ldb_di0_sel));
> +	clk[ldb_di0_div_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7);
> +	clk[ldb_di0_div] = imx_clk_divider("ldb_di0_div", "ldb_di0_div_3_5", MXC_CCM_CSCMR2, 10, 1);
> +	clk[ldb_di0_gate] = imx_clk_gate2("ldb_di0_gate", "ldb_di0_div", MXC_CCM_CCGR6, 28);
> +	clk[ldb_di1_gate] = imx_clk_gate2("ldb_di1_gate", "ldb_di1_div", MXC_CCM_CCGR6, 30);
> +	clk[ipu_di0_sel] = imx_clk_mux("ipu_di0_sel", MXC_CCM_CSCMR2, 26, 3,
> +				mx53_ipu_di0_sel, ARRAY_SIZE(mx53_ipu_di0_sel));
> +	clk[ipu_di1_sel] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3,
> +				mx53_ipu_di1_sel, ARRAY_SIZE(mx53_ipu_di1_sel));
> +	clk[tve_ext_sel] = imx_clk_mux("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1,
> +				mx53_tve_ext_sel, ARRAY_SIZE(mx53_tve_ext_sel));
> +	clk[tve_gate] = imx_clk_gate2("tve_gate", "tve_pred", MXC_CCM_CCGR2, 30);
> +	clk[tve_pred] = imx_clk_divider("tve_pred", "tve_ext_sel", MXC_CCM_CDCDR, 28, 3);
> +	clk[esdhc1_per_gate] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2);
> +	clk[esdhc2_per_gate] = imx_clk_gate2("esdhc2_per_gate", "esdhc_c_sel", MXC_CCM_CCGR3, 6);
> +	clk[esdhc3_per_gate] = imx_clk_gate2("esdhc3_per_gate", "esdhc_b_podf", MXC_CCM_CCGR3, 10);
> +	clk[esdhc4_per_gate] = imx_clk_gate2("esdhc4_per_gate", "esdhc_d_sel", MXC_CCM_CCGR3, 14);
> +	clk[usb_phy1_gate] = imx_clk_gate2("usb_phy1_gate", "usb_phy_sel", MXC_CCM_CCGR4, 10);
> +	clk[usb_phy2_gate] = imx_clk_gate2("usb_phy2_gate", "usb_phy_sel", MXC_CCM_CCGR4, 12);
> +	clk[can2_serial_gate] = imx_clk_gate2("can2_serial_gate", "ipg", MXC_CCM_CCGR4, 6);
> +	clk[can2_ipg_gate] = imx_clk_gate2("can2_ipg_gate", "ipg", MXC_CCM_CCGR4, 8);
> +	clk[i2c3_gate] = imx_clk_gate2("i2c3_gate", "per_root", MXC_CCM_CCGR1, 22);
> +
> +	for (i = 0; i < ARRAY_SIZE(clk); i++)
> +		if (IS_ERR(clk[i]))
> +			pr_err("i.MX53 clk %d: register failed with %ld\n",
> +				i, PTR_ERR(clk[i]));
> +
> +	mx5_clocks_common_init(rate_ckil, rate_osc, rate_ckih1, rate_ckih2);
> +
> +	clk_register_clkdev(clk[vpu_gate], NULL, "imx53-vpu.0");
> +	clk_register_clkdev(clk[i2c3_gate], NULL, "imx-i2c.2");
> +	clk_register_clkdev(clk[fec_gate], NULL, "imx25-fec.0");
> +	clk_register_clkdev(clk[ipu_gate], "bus", "imx53-ipu");
> +	clk_register_clkdev(clk[ipu_di0_gate], "di0", "imx53-ipu");
> +	clk_register_clkdev(clk[ipu_di1_gate], "di1", "imx53-ipu");
> +	clk_register_clkdev(clk[ipu_gate], "hsp", "imx53-ipu");
> +	clk_register_clkdev(clk[usb_phy1_gate], "usb_phy1", "mxc-ehci.0");
> +	clk_register_clkdev(clk[esdhc1_ipg_gate], "ipg", "sdhci-esdhc-imx53.0");
> +	clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx53.0");
> +	clk_register_clkdev(clk[esdhc1_per_gate], "per", "sdhci-esdhc-imx53.0");
> +	clk_register_clkdev(clk[esdhc2_ipg_gate], "ipg", "sdhci-esdhc-imx53.1");
> +	clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx53.1");
> +	clk_register_clkdev(clk[esdhc2_per_gate], "per", "sdhci-esdhc-imx53.1");
> +	clk_register_clkdev(clk[esdhc3_ipg_gate], "ipg", "sdhci-esdhc-imx53.2");
> +	clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx53.2");
> +	clk_register_clkdev(clk[esdhc3_per_gate], "per", "sdhci-esdhc-imx53.2");
> +	clk_register_clkdev(clk[esdhc4_ipg_gate], "ipg", "sdhci-esdhc-imx53.3");
> +	clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx53.3");
> +	clk_register_clkdev(clk[esdhc4_per_gate], "per", "sdhci-esdhc-imx53.3");
> +
> +	/* set SDHC root clock to 200MHZ*/
> +	clk_set_rate(clk[esdhc_a_podf], 200000000);
> +	clk_set_rate(clk[esdhc_b_podf], 200000000);
> +
> +	/* System timer */
> +	mxc_timer_init(NULL, MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR),
> +		MX53_INT_GPT);
> +
> +	clk_prepare_enable(clk[iim_gate]);
> +	imx_print_silicon_rev("i.MX53", mx53_revision());
> +	clk_disable_unprepare(clk[iim_gate]);
> +
> +	r = clk_round_rate(clk[usboh3_per_gate], 54000000);
> +	clk_set_rate(clk[usboh3_per_gate], r);
> +
> +	return 0;
> +}
> +
> +#ifdef CONFIG_OF
> +static void __init clk_get_freq_dt(unsigned long *ckil, unsigned long *osc,
> +				   unsigned long *ckih1, unsigned long *ckih2)
> +{
> +	struct device_node *np;
> +
> +	/* retrieve the freqency of fixed clocks from device tree */
> +	for_each_compatible_node(np, NULL, "fixed-clock") {
> +		u32 rate;
> +		if (of_property_read_u32(np, "clock-frequency", &rate))
> +			continue;
> +
> +		if (of_device_is_compatible(np, "fsl,imx-ckil"))
> +			*ckil = rate;
> +		else if (of_device_is_compatible(np, "fsl,imx-osc"))
> +			*osc = rate;
> +		else if (of_device_is_compatible(np, "fsl,imx-ckih1"))
> +			*ckih1 = rate;
> +		else if (of_device_is_compatible(np, "fsl,imx-ckih2"))
> +			*ckih2 = rate;
> +	}
> +}
> +
> +int __init mx51_clocks_init_dt(void)
> +{
> +	unsigned long ckil, osc, ckih1, ckih2;
> +
> +	clk_get_freq_dt(&ckil, &osc, &ckih1, &ckih2);
> +	return mx51_clocks_init(ckil, osc, ckih1, ckih2);
> +}
> +
> +int __init mx53_clocks_init_dt(void)
> +{
> +	unsigned long ckil, osc, ckih1, ckih2;
> +
> +	clk_get_freq_dt(&ckil, &osc, &ckih1, &ckih2);
> +	return mx53_clocks_init(ckil, osc, ckih1, ckih2);
> +}
> +#endif
>