ARM: davinci: da850: add ECAP & EHRPWM clock nodes

Add ECAP and EHRPWM module clock nodes. Also add a clock
node for TBCLK for EHRWPM.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

2 files changed, 47 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 0c4a26ddebba..2a2f60c54ec6 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -383,6 +383,49 @@ static struct clk dsp_clk = {
 	.flags		= PSC_LRST | PSC_FORCE,
 };
 
+static struct clk ehrpwm_clk = {
+	.name		= "ehrpwm",
+	.parent		= &pll0_sysclk2,
+	.lpsc		= DA8XX_LPSC1_PWM,
+	.gpsc		= 1,
+	.flags		= DA850_CLK_ASYNC3,
+};
+
+#define DA8XX_EHRPWM_TBCLKSYNC	BIT(12)
+
+static void ehrpwm_tblck_enable(struct clk *clk)
+{
+	u32 val;
+
+	val = readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+	val |= DA8XX_EHRPWM_TBCLKSYNC;
+	writel(val, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+}
+
+static void ehrpwm_tblck_disable(struct clk *clk)
+{
+	u32 val;
+
+	val = readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+	val &= ~DA8XX_EHRPWM_TBCLKSYNC;
+	writel(val, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+}
+
+static struct clk ehrpwm_tbclk = {
+	.name		= "ehrpwm_tbclk",
+	.parent		= &ehrpwm_clk,
+	.clk_enable	= ehrpwm_tblck_enable,
+	.clk_disable	= ehrpwm_tblck_disable,
+};
+
+static struct clk ecap_clk = {
+	.name		= "ecap",
+	.parent		= &pll0_sysclk2,
+	.lpsc		= DA8XX_LPSC1_ECAP,
+	.gpsc		= 1,
+	.flags		= DA850_CLK_ASYNC3,
+};
+
 static struct clk_lookup da850_clks[] = {
 	CLK(NULL,		"ref",		&ref_clk),
 	CLK(NULL,		"pll0",		&pll0_clk),
@@ -430,6 +473,9 @@ static struct clk_lookup da850_clks[] = {
 	CLK("vpif",		NULL,		&vpif_clk),
 	CLK("ahci",		NULL,		&sata_clk),
 	CLK("davinci-rproc.0",	NULL,		&dsp_clk),
+	CLK("ehrpwm",		"fck",		&ehrpwm_clk),
+	CLK("ehrpwm",		"tbclk",	&ehrpwm_tbclk),
+	CLK("ecap",		"fck",		&ecap_clk),
 	CLK(NULL,		NULL,		NULL),
 };
 
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index de439b7b9af1..be77ce269cb0 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -55,6 +55,7 @@ extern unsigned int da850_max_speed;
 #define DA8XX_SYSCFG0_VIRT(x)	(da8xx_syscfg0_base + (x))
 #define DA8XX_JTAG_ID_REG	0x18
 #define DA8XX_CFGCHIP0_REG	0x17c
+#define DA8XX_CFGCHIP1_REG	0x180
 #define DA8XX_CFGCHIP2_REG	0x184
 #define DA8XX_CFGCHIP3_REG	0x188