On Oct 14, 2009, at 7:10 AM, Dipen Dudhat wrote:
> On P1 and P2 RDB Platforms read the I2C EEPROM to get various board
> switch settings like NOR Flash Bank selection, SD Data width etc.
>
> Depending on,
> switch SW5[6] - select width for eSDHC
> ON - 4-bit [Enable eSPI]
> OFF - 8-bit [Disable eSPI]
>
> Signed-off-by: Dipen Dudhat <dipen.dud...@freescale.com>
> ---
> - applies to http://git.denx.de/u-boot.git
> board/freescale/p1_p2_rdb/p1_p2_rdb.c | 21 +++++++++++++++++++++
> 1 files changed, 21 insertions(+), 0 deletions(-)
>
> diff --git a/board/freescale/p1_p2_rdb/p1_p2_rdb.c b/board/freescale/
> p1_p2_rdb/p1_p2_rdb.c
> index 4c03468..e3ab73c 100644
> --- a/board/freescale/p1_p2_rdb/p1_p2_rdb.c
> +++ b/board/freescale/p1_p2_rdb/p1_p2_rdb.c
> @@ -130,9 +130,30 @@ int checkboard (void)
>
> int board_early_init_r(void)
> {
> + u8 i2c_data;
> + volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
> const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
> const u8 flash_esel = 2;
>
> + i2c_set_bus_num(1);
not sure how we do this but seems like it would be good to save the
old bus_num and restore it when done.
> + if (i2c_read(0x18, 0, 1, &i2c_data, sizeof(i2c_data)) == 0) {
how about a #define or something for the magic 0x18
> + if (i2c_data & 0x2)
> + printf("NOR Flash Bank : Secondary\n");
> + else
> + printf("NOR Flash Bank : Primary\n");
printf w/o any args should really be puts()
> +
> + if (i2c_data & 0x1) {
> + setbits_be32(&gur->pmuxcr,MPC85xx_PMUXCR_SD_DATA);
add a space between after the ,
> + printf("SD/MMC : 8-bit Mode\n");
> + printf("eSPI : Disabled\n");
> + } else {
> + printf("SD/MMC : 4-bit Mode\n");
> + printf("eSPI : Enabled\n");
> + }
> + }
> + else
> + printf("Failed reading I2C Chip 0x18 on bus 1\n");
> +
same comment as above about puts
> /*
> * Remap Boot flash region to caching-inhibited
> * so that flash can be erased properly.
> --
> 1.5.6.3
>
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