From 8430305dc3f3a286a337f1b4419c04afe55a2583 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Mon, 27 Aug 2012 10:54:02 +0800 Subject: ARM: mmp: move mmp2 clock definition to separated file move mmp2 clock definition to another file. Then mmp2 can choose common clock framework or private clock framework. Signed-off-by: Chao Xie Signed-off-by: Haojian Zhuang --- arch/arm/mach-mmp/clock-mmp2.c | 111 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 arch/arm/mach-mmp/clock-mmp2.c (limited to 'arch/arm/mach-mmp/clock-mmp2.c') diff --git a/arch/arm/mach-mmp/clock-mmp2.c b/arch/arm/mach-mmp/clock-mmp2.c new file mode 100644 index 000000000000..21d22002cd19 --- /dev/null +++ b/arch/arm/mach-mmp/clock-mmp2.c @@ -0,0 +1,111 @@ +#include +#include +#include +#include +#include +#include + +#include + +#include "common.h" +#include "clock.h" + +/* + * APB Clock register offsets for MMP2 + */ +#define APBC_RTC APBC_REG(0x000) +#define APBC_TWSI1 APBC_REG(0x004) +#define APBC_TWSI2 APBC_REG(0x008) +#define APBC_TWSI3 APBC_REG(0x00c) +#define APBC_TWSI4 APBC_REG(0x010) +#define APBC_KPC APBC_REG(0x018) +#define APBC_UART1 APBC_REG(0x02c) +#define APBC_UART2 APBC_REG(0x030) +#define APBC_UART3 APBC_REG(0x034) +#define APBC_GPIO APBC_REG(0x038) +#define APBC_PWM0 APBC_REG(0x03c) +#define APBC_PWM1 APBC_REG(0x040) +#define APBC_PWM2 APBC_REG(0x044) +#define APBC_PWM3 APBC_REG(0x048) +#define APBC_SSP0 APBC_REG(0x04c) +#define APBC_SSP1 APBC_REG(0x050) +#define APBC_SSP2 APBC_REG(0x054) +#define APBC_SSP3 APBC_REG(0x058) +#define APBC_SSP4 APBC_REG(0x05c) +#define APBC_SSP5 APBC_REG(0x060) +#define APBC_TWSI5 APBC_REG(0x07c) +#define APBC_TWSI6 APBC_REG(0x080) +#define APBC_UART4 APBC_REG(0x088) + +#define APMU_USB APMU_REG(0x05c) +#define APMU_NAND APMU_REG(0x060) +#define APMU_SDH0 APMU_REG(0x054) +#define APMU_SDH1 APMU_REG(0x058) +#define APMU_SDH2 APMU_REG(0x0e8) +#define APMU_SDH3 APMU_REG(0x0ec) + +static void sdhc_clk_enable(struct clk *clk) +{ + uint32_t clk_rst; + + clk_rst = __raw_readl(clk->clk_rst); + clk_rst |= clk->enable_val; + __raw_writel(clk_rst, clk->clk_rst); +} + +static void sdhc_clk_disable(struct clk *clk) +{ + uint32_t clk_rst; + + clk_rst = __raw_readl(clk->clk_rst); + clk_rst &= ~clk->enable_val; + __raw_writel(clk_rst, clk->clk_rst); +} + +struct clkops sdhc_clk_ops = { + .enable = sdhc_clk_enable, + .disable = sdhc_clk_disable, +}; + +/* APB peripheral clocks */ +static APBC_CLK(uart1, UART1, 1, 26000000); +static APBC_CLK(uart2, UART2, 1, 26000000); +static APBC_CLK(uart3, UART3, 1, 26000000); +static APBC_CLK(uart4, UART4, 1, 26000000); +static APBC_CLK(twsi1, TWSI1, 0, 26000000); +static APBC_CLK(twsi2, TWSI2, 0, 26000000); +static APBC_CLK(twsi3, TWSI3, 0, 26000000); +static APBC_CLK(twsi4, TWSI4, 0, 26000000); +static APBC_CLK(twsi5, TWSI5, 0, 26000000); +static APBC_CLK(twsi6, TWSI6, 0, 26000000); +static APBC_CLK(gpio, GPIO, 0, 26000000); + +static APMU_CLK(nand, NAND, 0xbf, 100000000); +static APMU_CLK_OPS(sdh0, SDH0, 0x1b, 200000000, &sdhc_clk_ops); +static APMU_CLK_OPS(sdh1, SDH1, 0x1b, 200000000, &sdhc_clk_ops); +static APMU_CLK_OPS(sdh2, SDH2, 0x1b, 200000000, &sdhc_clk_ops); +static APMU_CLK_OPS(sdh3, SDH3, 0x1b, 200000000, &sdhc_clk_ops); + +static struct clk_lookup mmp2_clkregs[] = { + INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL), + INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL), + INIT_CLKREG(&clk_uart3, "pxa2xx-uart.2", NULL), + INIT_CLKREG(&clk_uart4, "pxa2xx-uart.3", NULL), + INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.0", NULL), + INIT_CLKREG(&clk_twsi2, "pxa2xx-i2c.1", NULL), + INIT_CLKREG(&clk_twsi3, "pxa2xx-i2c.2", NULL), + INIT_CLKREG(&clk_twsi4, "pxa2xx-i2c.3", NULL), + INIT_CLKREG(&clk_twsi5, "pxa2xx-i2c.4", NULL), + INIT_CLKREG(&clk_twsi6, "pxa2xx-i2c.5", NULL), + INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL), + INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL), + INIT_CLKREG(&clk_sdh0, "sdhci-pxav3.0", "PXA-SDHCLK"), + INIT_CLKREG(&clk_sdh1, "sdhci-pxav3.1", "PXA-SDHCLK"), + INIT_CLKREG(&clk_sdh2, "sdhci-pxav3.2", "PXA-SDHCLK"), + INIT_CLKREG(&clk_sdh3, "sdhci-pxav3.3", "PXA-SDHCLK"), +}; + +void __init mmp2_clk_init(void) +{ + clkdev_add_table(ARRAY_AND_SIZE(mmp2_clkregs)); +} -- cgit v1.2.3