Sorry, missed the below in the first reply
On 11/23/11 11:26, Stefano Babic wrote:
> The twister board is a development board using
> the TAM3517 SOM.
>
> Support for NAND, 2 Ethernet (EMAC and SMC911),
> USB (EHCI_OMAP).
>
> Signed-off-by: Stefano Babic <sba...@denx.de>
> CC: Tapani Utrianen <tap...@technexion.com>
> CC: Tom Rini <tom.r...@gmail.com>
> CC: Sandeep Paulraj <s-paul...@ti.com>
> ---
> MAINTAINERS | 1 +
> board/technexion/twister/Makefile | 44 ++++
> board/technexion/twister/twister.c | 126 +++++++++++
> board/technexion/twister/twister.h | 400
> ++++++++++++++++++++++++++++++++++++
> boards.cfg | 1 +
> include/configs/twister.h | 103 +++++++++
> 6 files changed, 675 insertions(+), 0 deletions(-)
> create mode 100644 board/technexion/twister/Makefile
> create mode 100644 board/technexion/twister/twister.c
> create mode 100644 board/technexion/twister/twister.h
> create mode 100644 include/configs/twister.h
[...]
> diff --git a/board/technexion/twister/twister.c
> b/board/technexion/twister/twister.c
> new file mode 100644
> index 0000000..89a4d81
> --- /dev/null
> +++ b/board/technexion/twister/twister.c
[...]
> +/*
> + * Routine: board_init
> + * Description: Early hardware init.
> + */
> +int board_init(void)
> +{
> + gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
> +
> + /* boot param addr */
> + gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
> +
> + writel(0x00000000, &gpmc_cfg->cs[1].config1);
> + writel(0x001e1e01, &gpmc_cfg->cs[1].config2);
> + writel(0x00080300, &gpmc_cfg->cs[1].config3);
> + writel(0x1c091c09, &gpmc_cfg->cs[1].config4);
> + writel(0x04181f1f, &gpmc_cfg->cs[1].config5);
> + writel(0x00000FCF, &gpmc_cfg->cs[1].config6);
> + writel(0x00000f61, &gpmc_cfg->cs[1].config7);
> +
> + writel(0x00000000, &gpmc_cfg->cs[3].config1);
> + writel(0x001e1e01, &gpmc_cfg->cs[3].config2);
> + writel(0x00080300, &gpmc_cfg->cs[3].config3);
> + writel(0x1c091c09, &gpmc_cfg->cs[3].config4);
> + writel(0x04181f1f, &gpmc_cfg->cs[3].config5);
> + writel(0x00000FCF, &gpmc_cfg->cs[3].config6);
> + writel(0x00000f63, &gpmc_cfg->cs[3].config7);
Can there be an explanation of what's that and why is it needed?
Also, it looks like you are writing the same values to both chip selects.
Can enable_gpmc_cs_config() function be used here as well and
the values documented (e.g. NET_GPMC_CONFIGx)?
[...]
--
Regards,
Igor.
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