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

Stefano Babic
2017-11-09T09:28:33Z

On 08/11/2017 16:35, Martyn Welch wrote:
> 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;
>

Acked-by: Stefano Babic <sbabic@denx.de>

Best regards,
Stefano

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