diff options
Diffstat (limited to 'arch/arm/mach-imx/clk-imx51-imx53.c')
| -rw-r--r-- | arch/arm/mach-imx/clk-imx51-imx53.c | 85 |
1 files changed, 53 insertions, 32 deletions
diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c index a0bf84803eac..0f39f8c93b94 100644 --- a/arch/arm/mach-imx/clk-imx51-imx53.c +++ b/arch/arm/mach-imx/clk-imx51-imx53.c @@ -14,11 +14,10 @@ #include <linux/of.h> #include <linux/err.h> -#include <mach/hardware.h> -#include <mach/common.h> - #include "crm-regs-imx5.h" #include "clk.h" +#include "common.h" +#include "hardware.h" /* Low-power Audio Playback Mode clock */ static const char *lp_apm_sel[] = { "osc", }; @@ -84,10 +83,12 @@ enum imx5_clks { ssi2_root_gate, ssi3_root_gate, ssi_ext1_gate, ssi_ext2_gate, epit1_ipg_gate, epit1_hf_gate, epit2_ipg_gate, epit2_hf_gate, can_sel, can1_serial_gate, can1_ipg_gate, + owire_gate, clk_max }; static struct clk *clk[clk_max]; +static struct clk_onecell_data clk_data; static void __init mx5_clocks_common_init(unsigned long rate_ckil, unsigned long rate_osc, unsigned long rate_ckih1, @@ -233,12 +234,13 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, clk[epit1_hf_gate] = imx_clk_gate2("epit1_hf_gate", "per_root", MXC_CCM_CCGR2, 4); clk[epit2_ipg_gate] = imx_clk_gate2("epit2_ipg_gate", "ipg", MXC_CCM_CCGR2, 6); clk[epit2_hf_gate] = imx_clk_gate2("epit2_hf_gate", "per_root", MXC_CCM_CCGR2, 8); + clk[owire_gate] = imx_clk_gate2("owire_gate", "per_root", MXC_CCM_CCGR2, 22); 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_hf_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"); @@ -258,8 +260,8 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, clk_register_clkdev(clk[cspi_ipg_gate], NULL, "imx35-cspi.2"); 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[i2c1_gate], NULL, "imx21-i2c.0"); + clk_register_clkdev(clk[i2c2_gate], NULL, "imx21-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"); @@ -269,10 +271,10 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, 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[usboh3_per_gate], "per", "imx-udc-mx51"); + clk_register_clkdev(clk[usboh3_gate], "ipg", "imx-udc-mx51"); + clk_register_clkdev(clk[usboh3_gate], "ahb", "imx-udc-mx51"); + clk_register_clkdev(clk[nfc_gate], NULL, "imx51-nand"); clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.0"); clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "imx-ssi.1"); clk_register_clkdev(clk[ssi3_ipg_gate], NULL, "imx-ssi.2"); @@ -306,6 +308,10 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, clk_prepare_enable(clk[spba]); clk_prepare_enable(clk[emi_fast_gate]); /* fec */ clk_prepare_enable(clk[emi_slow_gate]); /* eim */ + clk_prepare_enable(clk[mipi_hsc1_gate]); + clk_prepare_enable(clk[mipi_hsc2_gate]); + clk_prepare_enable(clk[mipi_esc_gate]); + clk_prepare_enable(clk[mipi_hsp_gate]); clk_prepare_enable(clk[tmax1]); clk_prepare_enable(clk[tmax2]); /* esdhc2, fec */ clk_prepare_enable(clk[tmax3]); /* esdhc1, esdhc4 */ @@ -315,6 +321,8 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, unsigned long rate_ckih1, unsigned long rate_ckih2) { int i; + u32 val; + struct device_node *np; clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX51_DPLL1_BASE); clk[pll2_sw] = imx_clk_pllv2("pll2_sw", "osc", MX51_DPLL2_BASE); @@ -343,16 +351,20 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, pr_err("i.MX51 clk %d: register failed with %ld\n", i, PTR_ERR(clk[i])); + np = of_find_compatible_node(NULL, NULL, "fsl,imx51-ccm"); + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + 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[hsi2c_gate], NULL, "imx21-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[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[ipu_gate], "bus", "40000000.ipu"); + clk_register_clkdev(clk[ipu_di0_gate], "di0", "40000000.ipu"); + clk_register_clkdev(clk[ipu_di1_gate], "di1", "40000000.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"); @@ -366,10 +378,6 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, 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"); - clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "83fcc000.ssi"); - clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "70014000.ssi"); - clk_register_clkdev(clk[ssi3_ipg_gate], NULL, "83fe8000.ssi"); - clk_register_clkdev(clk[nfc_gate], NULL, "83fdb000.nand"); /* set the usboh3 parent to pll2_sw */ clk_set_parent(clk[usboh3_sel], clk[pll2_sw]); @@ -385,6 +393,21 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, imx_print_silicon_rev("i.MX51", mx51_revision()); clk_disable_unprepare(clk[iim_gate]); + /* + * Reference Manual says: Functionality of CCDR[18] and CLPCR[23] is no + * longer supported. Set to one for better power saving. + * + * The effect of not setting these bits is that MIPI clocks can't be + * enabled without the IPU clock being enabled aswell. + */ + val = readl(MXC_CCM_CCDR); + val |= 1 << 18; + writel(val, MXC_CCM_CCDR); + + val = readl(MXC_CCM_CLPCR); + val |= 1 << 23; + writel(val, MXC_CCM_CLPCR); + return 0; } @@ -393,6 +416,7 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, { int i; unsigned long r; + struct device_node *np; clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE); clk[pll2_sw] = imx_clk_pllv2("pll2_sw", "osc", MX53_DPLL2_BASE); @@ -437,15 +461,20 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, pr_err("i.MX53 clk %d: register failed with %ld\n", i, PTR_ERR(clk[i])); + np = of_find_compatible_node(NULL, NULL, "fsl,imx53-ccm"); + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + 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[i2c3_gate], NULL, "imx21-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[ipu_gate], "bus", "18000000.ipu"); + clk_register_clkdev(clk[ipu_di0_gate], "di0", "18000000.ipu"); + clk_register_clkdev(clk[ipu_di1_gate], "di1", "18000000.ipu"); + clk_register_clkdev(clk[ipu_gate], "hsp", "18000000.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"); @@ -459,14 +488,6 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, 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"); - clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "63fcc000.ssi"); - clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "50014000.ssi"); - clk_register_clkdev(clk[ssi3_ipg_gate], NULL, "63fd0000.ssi"); - clk_register_clkdev(clk[nfc_gate], NULL, "63fdb000.nand"); - clk_register_clkdev(clk[can1_ipg_gate], "ipg", "53fc8000.can"); - clk_register_clkdev(clk[can1_serial_gate], "per", "53fc8000.can"); - clk_register_clkdev(clk[can2_ipg_gate], "ipg", "53fcc000.can"); - clk_register_clkdev(clk[can2_serial_gate], "per", "53fcc000.can"); /* set SDHC root clock to 200MHZ*/ clk_set_rate(clk[esdhc_a_podf], 200000000); |