diff options
author | Arnd Bergmann <arnd@arndb.de> | 2012-10-05 00:57:00 +0400 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-10-05 00:57:51 +0400 |
commit | c37d6154c0b9163c27e53cc1d0be3867b4abd760 (patch) | |
tree | 7a24522c56d1cb284dff1d3c225bbdaba0901bb5 /arch/arm/mach-mmp/clock-mmp2.c | |
parent | e7a570ff7dff9af6e54ff5e580a61ec7652137a0 (diff) | |
parent | 8a1ab3155c2ac7fbe5f2038d6e26efeb607a1498 (diff) | |
download | linux-c37d6154c0b9163c27e53cc1d0be3867b4abd760.tar.xz |
Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic
Patches from David Howells <dhowells@redhat.com>:
This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.
Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.
* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/asm-generic
UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
c6x: remove c6x signal.h
UAPI: Split compound conditionals containing __KERNEL__ in Arm64
UAPI: Fix the guards on various asm/unistd.h files
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-mmp/clock-mmp2.c')
-rw-r--r-- | arch/arm/mach-mmp/clock-mmp2.c | 111 |
1 files changed, 111 insertions, 0 deletions
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 <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/io.h> +#include <linux/clk.h> + +#include <mach/addr-map.h> + +#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)); +} |