[U-Boot] [PATCH v2 3/7] pwm: imx: Enable PWM support on i.MX53
Martyn Welch
martyn at welchs.me.uk
Tue Oct 31 12:16:26 UTC 2017
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>
---
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
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