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.dudhat@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");elseprintf("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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