From ea5a9ce6aec67cc30ca43d6d2a0dd83f9291598c Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Sat, 14 Jul 2012 10:53:13 +0900 Subject: [PATCH] ARM: EXYNOS: Add spi clock support for EXYNOS5 Add support for clock instances for each spi controller. Signed-off-by: Thomas Abraham Acked-by: Jaswinder Singh [kgene.kim@samsung.com: changed the name of clk for consensus] Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/clock-exynos5.c | 95 ++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c index fefa336be2b4..774533c67066 100644 --- a/arch/arm/mach-exynos/clock-exynos5.c +++ b/arch/arm/mach-exynos/clock-exynos5.c @@ -131,6 +131,11 @@ static int exynos5_clksrc_mask_peric0_ctrl(struct clk *clk, int enable) return s5p_gatectrl(EXYNOS5_CLKSRC_MASK_PERIC0, clk, enable); } +static int exynos5_clksrc_mask_peric1_ctrl(struct clk *clk, int enable) +{ + return s5p_gatectrl(EXYNOS5_CLKSRC_MASK_PERIC1, clk, enable); +} + static int exynos5_clk_ip_acp_ctrl(struct clk *clk, int enable) { return s5p_gatectrl(EXYNOS5_CLKGATE_IP_ACP, clk, enable); @@ -740,6 +745,24 @@ static struct clk exynos5_init_clocks_off[] = { .parent = &exynos5_clk_aclk_66.clk, .enable = exynos5_clk_ip_peric_ctrl, .ctrlbit = (1 << 14), + }, { + .name = "spi", + .devname = "exynos4210-spi.0", + .parent = &exynos5_clk_aclk_66.clk, + .enable = exynos5_clk_ip_peric_ctrl, + .ctrlbit = (1 << 16), + }, { + .name = "spi", + .devname = "exynos4210-spi.1", + .parent = &exynos5_clk_aclk_66.clk, + .enable = exynos5_clk_ip_peric_ctrl, + .ctrlbit = (1 << 17), + }, { + .name = "spi", + .devname = "exynos4210-spi.2", + .parent = &exynos5_clk_aclk_66.clk, + .enable = exynos5_clk_ip_peric_ctrl, + .ctrlbit = (1 << 18), }, { .name = SYSMMU_CLOCK_NAME, .devname = SYSMMU_CLOCK_DEVNAME(mfc_l, 0), @@ -1034,6 +1057,69 @@ static struct clksrc_clk exynos5_clk_sclk_mmc3 = { .reg_div = { .reg = EXYNOS5_CLKDIV_FSYS2, .shift = 24, .size = 8 }, }; +static struct clksrc_clk exynos5_clk_mdout_spi0 = { + .clk = { + .name = "mdout_spi", + .devname = "exynos4210-spi.0", + }, + .sources = &exynos5_clkset_group, + .reg_src = { .reg = EXYNOS5_CLKSRC_PERIC1, .shift = 16, .size = 4 }, + .reg_div = { .reg = EXYNOS5_CLKDIV_PERIC1, .shift = 0, .size = 4 }, +}; + +static struct clksrc_clk exynos5_clk_mdout_spi1 = { + .clk = { + .name = "mdout_spi", + .devname = "exynos4210-spi.1", + }, + .sources = &exynos5_clkset_group, + .reg_src = { .reg = EXYNOS5_CLKSRC_PERIC1, .shift = 20, .size = 4 }, + .reg_div = { .reg = EXYNOS5_CLKDIV_PERIC1, .shift = 16, .size = 4 }, +}; + +static struct clksrc_clk exynos5_clk_mdout_spi2 = { + .clk = { + .name = "mdout_spi", + .devname = "exynos4210-spi.2", + }, + .sources = &exynos5_clkset_group, + .reg_src = { .reg = EXYNOS5_CLKSRC_PERIC1, .shift = 24, .size = 4 }, + .reg_div = { .reg = EXYNOS5_CLKDIV_PERIC2, .shift = 0, .size = 4 }, +}; + +static struct clksrc_clk exynos5_clk_sclk_spi0 = { + .clk = { + .name = "sclk_spi", + .devname = "exynos4210-spi.0", + .parent = &exynos5_clk_mdout_spi0.clk, + .enable = exynos5_clksrc_mask_peric1_ctrl, + .ctrlbit = (1 << 16), + }, + .reg_div = { .reg = EXYNOS5_CLKDIV_PERIC1, .shift = 8, .size = 8 }, +}; + +static struct clksrc_clk exynos5_clk_sclk_spi1 = { + .clk = { + .name = "sclk_spi", + .devname = "exynos4210-spi.1", + .parent = &exynos5_clk_mdout_spi1.clk, + .enable = exynos5_clksrc_mask_peric1_ctrl, + .ctrlbit = (1 << 20), + }, + .reg_div = { .reg = EXYNOS5_CLKDIV_PERIC1, .shift = 24, .size = 8 }, +}; + +static struct clksrc_clk exynos5_clk_sclk_spi2 = { + .clk = { + .name = "sclk_spi", + .devname = "exynos4210-spi.2", + .parent = &exynos5_clk_mdout_spi2.clk, + .enable = exynos5_clksrc_mask_peric1_ctrl, + .ctrlbit = (1 << 24), + }, + .reg_div = { .reg = EXYNOS5_CLKDIV_PERIC2, .shift = 8, .size = 8 }, +}; + static struct clksrc_clk exynos5_clksrcs[] = { { .clk = { @@ -1148,6 +1234,12 @@ static struct clksrc_clk *exynos5_sysclks[] = { &exynos5_clk_dout_mmc4, &exynos5_clk_aclk_acp, &exynos5_clk_pclk_acp, + &exynos5_clk_sclk_spi0, + &exynos5_clk_sclk_spi1, + &exynos5_clk_sclk_spi2, + &exynos5_clk_mdout_spi0, + &exynos5_clk_mdout_spi1, + &exynos5_clk_mdout_spi2, }; static struct clk *exynos5_clk_cdev[] = { @@ -1176,6 +1268,9 @@ static struct clk_lookup exynos5_clk_lookup[] = { CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk), CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk), CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk), + CLKDEV_INIT("exynos4210-spi.0", "spi_busclk0", &exynos5_clk_sclk_spi0.clk), + CLKDEV_INIT("exynos4210-spi.1", "spi_busclk0", &exynos5_clk_sclk_spi1.clk), + CLKDEV_INIT("exynos4210-spi.2", "spi_busclk0", &exynos5_clk_sclk_spi2.clk), CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos5_clk_pdma0), CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos5_clk_pdma1), CLKDEV_INIT("dma-pl330.2", "apb_pclk", &exynos5_clk_mdma1),