[U-Boot] [PATCH v5 3/8] pwm: imx: Enable PWM support on i.MX53

Martyn Welch
2017-11-08T15:35:11Z

Add missing parts for i.MX53 PWM support

Acked-by: Nandor Han <nandor.han@ge.com>
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: Stefano Babic <sbabic@denx.de>
---
Changes for v4:
- Removed ifdef.

arch/arm/include/asm/arch-mx5/imx-regs.h | 17 +++++++++++++++++
drivers/pwm/pwm-imx-util.c | 2 ++
2 files changed, 19 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..2b0dc1e 100644
--- a/arch/arm/include/asm/arch-mx5/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx5/imx-regs.h
@@ -508,6 +508,23 @@ struct fuse_bank4_regs {
};
#endif

+#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 /* __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