ARM: EXYNOS: Add spi clock support for EXYNOS5

Add support for clock instances for each spi controller.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org>
[kgene.kim@samsung.com: changed the name of clk for consensus]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 95 insertions, 0 deletions

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);
@@ -741,6 +746,24 @@ static struct clk exynos5_init_clocks_off[] = {
                 .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),
                 .enable         = &exynos5_clk_ip_mfc_ctrl,
@@ -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),