[U-Boot] [PATCH v2 03/10] mx23evk: Adjust DRAM control register to use full 128MB of RAM

Marek Vasut
2013-02-13T21:13:04Z

Dear Otavio Salvador,

> Adjust HW_DRAM_CTL14 to enable the chip selects to allow usage of full
> 128MB of RAM.

Why can this not be enabled globally?

> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
> ---
> Changes in v2: None
>
> board/freescale/mx23evk/spl_boot.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/board/freescale/mx23evk/spl_boot.c
> b/board/freescale/mx23evk/spl_boot.c index 6007433..b6f4e7e 100644
> --- a/board/freescale/mx23evk/spl_boot.c
> +++ b/board/freescale/mx23evk/spl_boot.c
> @@ -98,6 +98,16 @@ const iomux_cfg_t iomux_setup[] = {
> (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> };
>
> +#define HW_DRAM_CTL14 (0x38 >> 2)
> +#define CS_MAP 0x3
> +#define INTAREF 0x2
> +#define HW_DRAM_CTL14_CONFIG (INTAREF << 8 | CS_MAP)
> +
> +void mxs_adjust_memory_params(uint32_t *dram_vals)
> +{
> + dram_vals[HW_DRAM_CTL14] = HW_DRAM_CTL14_CONFIG;
> +}
> +
> void board_init_ll(void)
> {
> mxs_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));

Best regards,
Marek Vasut