[PATCH 2/6] ARM: Exynos5: Add spi clock support
Thomas Abraham
thomas.abraham at linaro.org
Fri May 18 05:46:28 EDT 2012
Add support for clock instances for each spi controller.
Signed-off-by: Thomas Abraham <thomas.abraham at linaro.org>
Acked-by: Jaswinder Singh <jaswinder.singh at linaro.org>
---
arch/arm/mach-exynos/clock-exynos5.c | 98 ++++++++++++++++++++++++
arch/arm/mach-exynos/include/mach/regs-clock.h | 4 +
2 files changed, 102 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index 5aa460b..ad6c959 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -82,6 +82,11 @@ 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);
@@ -692,6 +697,24 @@ 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,
@@ -985,6 +1008,72 @@ 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 = "sclk_spi_mdout",
+ .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_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_mdout_spi1 = {
+ .clk = {
+ .name = "sclk_spi_mdout",
+ .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_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_mdout_spi2 = {
+ .clk = {
+ .name = "sclk_spi_mdout",
+ .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_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 = {
@@ -1116,6 +1205,12 @@ static struct clksrc_clk *exynos5_clksrc_cdev[] = {
&exynos5_clk_sclk_mmc1,
&exynos5_clk_sclk_mmc2,
&exynos5_clk_sclk_mmc3,
+ &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_lookup exynos5_clk_lookup[] = {
@@ -1127,6 +1222,9 @@ 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),
diff --git a/arch/arm/mach-exynos/include/mach/regs-clock.h b/arch/arm/mach-exynos/include/mach/regs-clock.h
index b78b5f3..ca86aba 100644
--- a/arch/arm/mach-exynos/include/mach/regs-clock.h
+++ b/arch/arm/mach-exynos/include/mach/regs-clock.h
@@ -287,6 +287,7 @@
#define EXYNOS5_CLKSRC_DISP1_0 EXYNOS_CLKREG(0x1022C)
#define EXYNOS5_CLKSRC_FSYS EXYNOS_CLKREG(0x10244)
#define EXYNOS5_CLKSRC_PERIC0 EXYNOS_CLKREG(0x10250)
+#define EXYNOS5_CLKSRC_PERIC1 EXYNOS_CLKREG(0x10254)
#define EXYNOS5_CLKSRC_MASK_TOP EXYNOS_CLKREG(0x10310)
#define EXYNOS5_CLKSRC_MASK_GSCL EXYNOS_CLKREG(0x10320)
@@ -304,6 +305,9 @@
#define EXYNOS5_CLKDIV_FSYS2 EXYNOS_CLKREG(0x10550)
#define EXYNOS5_CLKDIV_FSYS3 EXYNOS_CLKREG(0x10554)
#define EXYNOS5_CLKDIV_PERIC0 EXYNOS_CLKREG(0x10558)
+#define EXYNOS5_CLKDIV_PERIC1 EXYNOS_CLKREG(0x1055C)
+#define EXYNOS5_CLKDIV_PERIC2 EXYNOS_CLKREG(0x10560)
+#define EXYNOS5_CLKSRC_MASK_PERIC1 EXYNOS_CLKREG(0x10354)
#define EXYNOS5_CLKGATE_IP_ACP EXYNOS_CLKREG(0x08800)
#define EXYNOS5_CLKGATE_IP_ISP0 EXYNOS_CLKREG(0x0C800)
--
1.6.6.rc2
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