[U-Boot] [PATCH v3] arm, imx6: add alternative PAD_CTL_DSE constants
Stefano Babic
sbabic at denx.de
Mon Jul 23 09:28:11 UTC 2018
On 28/06/2018 15:56, Mark Jonas wrote:
> Not all i.MX6 pads use the same drive strength table. So far only the
> 240 Ohm to 34 Ohm table was available. Because the constants used have
> speaking names it can be confusing to use e.g. PAD_CTL_DSE_48ohm when
> according to the reference manual 52 Ohm is the correct value. This
> patch adds the 260 Ohm to 37 Ohm table.
>
> For example, the IOMUXC_SW_PAD_CTL_PAD_SD2_CLK register (SD-card clock)
> uses the added table.
>
> Signed-off-by: Mark Jonas <mark.jonas at de.bosch.com>
> Reviewed-by: Stefano Babic <sbabic at denx.de>
> ---
> Changes in V3:
> - Reviewed by Stefano Babic
>
> Changes in V2:
> - Add missing Signed-off-by
> ---
> arch/arm/include/asm/mach-imx/iomux-v3.h | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/include/asm/mach-imx/iomux-v3.h b/arch/arm/include/asm/mach-imx/iomux-v3.h
> index bb93058..63f4b33 100644
> --- a/arch/arm/include/asm/mach-imx/iomux-v3.h
> +++ b/arch/arm/include/asm/mach-imx/iomux-v3.h
> @@ -163,6 +163,14 @@ typedef u64 iomux_v3_cfg_t;
> #define PAD_CTL_DSE_40ohm (6 << 3)
> #define PAD_CTL_DSE_34ohm (7 << 3)
>
> +#define PAD_CTL_DSE_260ohm (1 << 3)
> +#define PAD_CTL_DSE_130ohm (2 << 3)
> +#define PAD_CTL_DSE_88ohm (3 << 3)
> +#define PAD_CTL_DSE_65ohm (4 << 3)
> +#define PAD_CTL_DSE_52ohm (5 << 3)
> +#define PAD_CTL_DSE_43ohm (6 << 3)
> +#define PAD_CTL_DSE_37ohm (7 << 3)
> +
> /* i.MX6SL/SLL */
> #define PAD_CTL_LVE (1 << 1)
> #define PAD_CTL_LVE_BIT (1 << 22)
>
Applied to u-boot-imx, thanks !
Best regards,
Stefano Babic
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