diff options
Diffstat (limited to 'arch/arm/mach-imx/clk-imx27.c')
| -rw-r--r-- | arch/arm/mach-imx/clk-imx27.c | 102 |
1 files changed, 88 insertions, 14 deletions
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c index abfde0fd62..222d2a6ebc 100644 --- a/arch/arm/mach-imx/clk-imx27.c +++ b/arch/arm/mach-imx/clk-imx27.c @@ -7,6 +7,7 @@ #include <linux/err.h> #include <mach/imx27-regs.h> #include <mach/generic.h> +#include <mach/revision.h> #include "clk.h" @@ -26,10 +27,73 @@ #define CCM_PMCOUNT 0x30 #define CCM_WKGDCTL 0x34 +#define PCCR0_SSI2_EN (1 << 0) +#define PCCR0_SSI1_EN (1 << 1) +#define PCCR0_SLCDC_EN (1 << 2) +#define PCCR0_SDHC3_EN (1 << 3) +#define PCCR0_SDHC2_EN (1 << 4) +#define PCCR0_SDHC1_EN (1 << 5) +#define PCCR0_SDC_EN (1 << 6) +#define PCCR0_SAHARA_EN (1 << 7) +#define PCCR0_RTIC_EN (1 << 8) +#define PCCR0_RTC_EN (1 << 9) +#define PCCR0_PWM_EN (1 << 11) +#define PCCR0_OWIRE_EN (1 << 12) +#define PCCR0_MSHC_EN (1 << 13) +#define PCCR0_LCDC_EN (1 << 14) +#define PCCR0_KPP_EN (1 << 15) +#define PCCR0_IIM_EN (1 << 16) +#define PCCR0_I2C2_EN (1 << 17) +#define PCCR0_I2C1_EN (1 << 18) +#define PCCR0_GPT6_EN (1 << 19) +#define PCCR0_GPT5_EN (1 << 20) +#define PCCR0_GPT4_EN (1 << 21) +#define PCCR0_GPT3_EN (1 << 22) +#define PCCR0_GPT2_EN (1 << 23) +#define PCCR0_GPT1_EN (1 << 24) +#define PCCR0_GPIO_EN (1 << 25) +#define PCCR0_FEC_EN (1 << 26) +#define PCCR0_EMMA_EN (1 << 27) +#define PCCR0_DMA_EN (1 << 28) +#define PCCR0_CSPI3_EN (1 << 29) +#define PCCR0_CSPI2_EN (1 << 30) +#define PCCR0_CSPI1_EN (1 << 31) + +#define PCCR1_MSHC_BAUDEN (1 << 2) +#define PCCR1_NFC_BAUDEN (1 << 3) +#define PCCR1_SSI2_BAUDEN (1 << 4) +#define PCCR1_SSI1_BAUDEN (1 << 5) +#define PCCR1_H264_BAUDEN (1 << 6) +#define PCCR1_PERCLK4_EN (1 << 7) +#define PCCR1_PERCLK3_EN (1 << 8) +#define PCCR1_PERCLK2_EN (1 << 9) +#define PCCR1_PERCLK1_EN (1 << 10) +#define PCCR1_HCLK_USB (1 << 11) +#define PCCR1_HCLK_SLCDC (1 << 12) +#define PCCR1_HCLK_SAHARA (1 << 13) +#define PCCR1_HCLK_RTIC (1 << 14) +#define PCCR1_HCLK_LCDC (1 << 15) +#define PCCR1_HCLK_H264 (1 << 16) +#define PCCR1_HCLK_FEC (1 << 17) +#define PCCR1_HCLK_EMMA (1 << 18) +#define PCCR1_HCLK_EMI (1 << 19) +#define PCCR1_HCLK_DMA (1 << 20) +#define PCCR1_HCLK_CSI (1 << 21) +#define PCCR1_HCLK_BROM (1 << 22) +#define PCCR1_HCLK_ATA (1 << 23) +#define PCCR1_WDT_EN (1 << 24) +#define PCCR1_USB_EN (1 << 25) +#define PCCR1_UART6_EN (1 << 26) +#define PCCR1_UART5_EN (1 << 27) +#define PCCR1_UART4_EN (1 << 28) +#define PCCR1_UART3_EN (1 << 29) +#define PCCR1_UART2_EN (1 << 30) +#define PCCR1_UART1_EN (1 << 31) + enum mx27_clks { dummy, ckih, ckil, mpll, spll, mpll_main2, ahb, ipg, nfc_div, per1_div, per2_div, per3_div, per4_div, usb_div, cpu_sel, clko_sel, cpu_div, clko_div, - clko_en, clk_max + clko_en, lcdc_per_gate, clk_max }; static struct clk *clks[clk_max]; @@ -72,18 +136,18 @@ static int imx27_ccm_probe(struct device_d *dev) base = dev_request_mem_region(dev, 0); writel(PCCR0_SDHC3_EN | PCCR0_SDHC2_EN | PCCR0_SDHC1_EN | - PCCR0_PWM_EN | PCCR0_KPP_EN | PCCR0_IIM_EN | PCCR0_I2C2_EN | - PCCR0_I2C1_EN | PCCR0_GPT6_EN | PCCR0_GPT5_EN | PCCR0_GPT4_EN | - PCCR0_GPT3_EN | PCCR0_GPT2_EN | PCCR0_GPT1_EN | PCCR0_GPIO_EN | - PCCR0_FEC_EN | PCCR0_CSPI3_EN | PCCR0_CSPI2_EN | PCCR0_CSPI1_EN, + PCCR0_PWM_EN | PCCR0_KPP_EN | PCCR0_LCDC_EN | PCCR0_IIM_EN | + PCCR0_I2C2_EN | PCCR0_I2C1_EN | PCCR0_GPT6_EN | PCCR0_GPT5_EN | + PCCR0_GPT4_EN | PCCR0_GPT3_EN | PCCR0_GPT2_EN | PCCR0_GPT1_EN | + PCCR0_GPIO_EN | PCCR0_FEC_EN | PCCR0_CSPI3_EN | PCCR0_CSPI2_EN | + PCCR0_CSPI1_EN, base + CCM_PCCR0); - writel(PCCR1_NFC_BAUDEN | PCCR1_PERCLK4_EN | PCCR1_PERCLK3_EN | - PCCR1_PERCLK2_EN | PCCR1_PERCLK1_EN | PCCR1_HCLK_USB | - PCCR1_HCLK_FEC | PCCR1_HCLK_EMI | PCCR1_WDT_EN | PCCR1_USB_EN | - PCCR1_UART6_EN | PCCR1_UART5_EN | PCCR1_UART4_EN | - PCCR1_UART3_EN | PCCR1_UART2_EN | PCCR1_UART1_EN, - base + CCM_PCCR1); + writel(PCCR1_NFC_BAUDEN | PCCR1_PERCLK4_EN | PCCR1_PERCLK2_EN | PCCR1_PERCLK1_EN | + PCCR1_HCLK_USB | PCCR1_HCLK_LCDC | PCCR1_HCLK_FEC | PCCR1_HCLK_EMI | + PCCR1_WDT_EN | PCCR1_USB_EN | PCCR1_UART6_EN | PCCR1_UART5_EN | + PCCR1_UART4_EN | PCCR1_UART3_EN | PCCR1_UART2_EN | PCCR1_UART1_EN, + base + CCM_PCCR1); clks[dummy] = clk_fixed("dummy", 0); clks[ckih] = clk_fixed("ckih", 26000000); @@ -92,7 +156,7 @@ static int imx27_ccm_probe(struct device_d *dev) clks[spll] = imx_clk_pllv1("spll", "ckih", base + CCM_SPCTL0); clks[mpll_main2] = imx_clk_fixed_factor("mpll_main2", "mpll", 2, 3); - if (imx_silicon_revision() >= IMX27_CHIP_REVISION_2_0) { + if (imx_silicon_revision() >= IMX_CHIP_REV_2_0) { clks[ahb] = imx_clk_divider("ahb", "mpll_main2", base + CCM_CSCR, 8, 2); clks[ipg] = imx_clk_fixed_factor("ipg", "ahb", 1, 2); } else { @@ -110,11 +174,12 @@ static int imx27_ccm_probe(struct device_d *dev) ARRAY_SIZE(cpu_sel_clks)); clks[clko_sel] = imx_clk_mux("clko_sel", base + CCM_CCSR, 0, 5, clko_sel_clks, ARRAY_SIZE(clko_sel_clks)); - if (imx_silicon_revision() >= IMX27_CHIP_REVISION_2_0) + if (imx_silicon_revision() >= IMX_CHIP_REV_2_0) clks[cpu_div] = imx_clk_divider("cpu_div", "cpu_sel", base + CCM_CSCR, 12, 2); else clks[cpu_div] = imx_clk_divider("cpu_div", "cpu_sel", base + CCM_CSCR, 13, 3); clks[clko_div] = imx_clk_divider("clko_div", "clko_sel", base + CCM_PCDR0, 22, 3); + clks[lcdc_per_gate] = imx_clk_gate("lcdc_per_gate", "per3_div", base + CCM_PCCR1, 7); clkdev_add_physbase(clks[per1_div], MX27_GPT1_BASE_ADDR, NULL); clkdev_add_physbase(clks[per1_div], MX27_GPT2_BASE_ADDR, NULL); @@ -136,15 +201,24 @@ static int imx27_ccm_probe(struct device_d *dev) clkdev_add_physbase(clks[per2_div], MX27_SDHC1_BASE_ADDR, NULL); clkdev_add_physbase(clks[per2_div], MX27_SDHC2_BASE_ADDR, NULL); clkdev_add_physbase(clks[per2_div], MX27_SDHC3_BASE_ADDR, NULL); - clkdev_add_physbase(clks[per3_div], MX27_LCDC_BASE_ADDR, NULL); + clkdev_add_physbase(clks[lcdc_per_gate], MX27_LCDC_BASE_ADDR, NULL); clkdev_add_physbase(clks[ipg], MX27_FEC_BASE_ADDR, NULL); return 0; } +static __maybe_unused struct of_device_id imx27_ccm_dt_ids[] = { + { + .compatible = "fsl,imx27-ccm", + }, { + /* sentinel */ + } +}; + static struct driver_d imx27_ccm_driver = { .probe = imx27_ccm_probe, .name = "imx27-ccm", + .of_compatible = DRV_OF_COMPAT(imx27_ccm_dt_ids), }; static int imx27_ccm_init(void) |