[U-Boot] [PATCH 3/7] pwm: imx: Enable PWM support on i.MX53

[Martyn Welch]

From: Martyn Welch <martyn.welch at collabora.co.uk>

Add missing parts for i.MX53 PWM support

Acked-by: Nandor Han <nandor.han at ge.com>
Signed-off-by: Martyn Welch <martyn.welch at collabora.co.uk>
Cc: Stefano Babic <sbabic at denx.de>
Signed-off-by: Martyn Welch <martyn at welchs.me.uk>
---
 arch/arm/include/asm/arch-mx5/imx-regs.h | 19 +++++++++++++++++++
 drivers/pwm/pwm-imx-util.c               |  2 ++
 2 files changed, 21 insertions(+)

diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h
index 3e79fa3..c2ff798 100644
--- a/arch/arm/include/asm/arch-mx5/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx5/imx-regs.h
@@ -508,6 +508,25 @@ struct fuse_bank4_regs {
 };
 #endif
 
+#if defined(CONFIG_MX53)
+#define PWMCR_PRESCALER(x)	(((x - 1) & 0xFFF) << 4)
+#define PWMCR_DOZEEN		(1 << 24)
+#define PWMCR_WAITEN		(1 << 23)
+#define PWMCR_DBGEN		(1 << 22)
+#define PWMCR_CLKSRC_IPG_HIGH	(2 << 16)
+#define PWMCR_CLKSRC_IPG	(1 << 16)
+#define PWMCR_EN		(1 << 0)
+
+struct pwm_regs {
+	u32	cr;
+	u32	sr;
+	u32	ir;
+	u32	sar;
+	u32	pr;
+	u32	cnr;
+};
+#endif
+
 #endif /* __ASSEMBLER__*/
 
 #endif				/* __ASM_ARCH_MX5_IMX_REGS_H__ */
diff --git a/drivers/pwm/pwm-imx-util.c b/drivers/pwm/pwm-imx-util.c
index 534dd8e..97ac0c8 100644
--- a/drivers/pwm/pwm-imx-util.c
+++ b/drivers/pwm/pwm-imx-util.c
@@ -23,10 +23,12 @@ struct pwm_regs *pwm_id_to_reg(int pwm_id)
 		return (struct pwm_regs *)PWM1_BASE_ADDR;
 	case 1:
 		return (struct pwm_regs *)PWM2_BASE_ADDR;
+#ifdef CONFIG_MX6
 	case 2:
 		return (struct pwm_regs *)PWM3_BASE_ADDR;
 	case 3:
 		return (struct pwm_regs *)PWM4_BASE_ADDR;
+#endif
 #ifdef CONFIG_MX6SX
 	case 4:
 		return (struct pwm_regs *)PWM5_BASE_ADDR;
-- 
2.1.4