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powerpc/c29xpcie: Getting DDR SPD image from 16-bit sub-address EEPROM

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Currently, there is only one EEPROM on c29xpcie board which is AT24C1024.
We program the SPD data at beginning of the AT24C1024.But the AT24C1024
has a 16-bit sub-address mode. This patch is tomake it work when getting
SPD in a 16-bit sub-address EEPROM.

Signed-off-by: Po Liu <Po.Liu@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Po Liu 2013-11-26 14:34:07 +08:00 committed by York Sun
parent c3cc02af6c
commit 380b8f307c
1 changed files with 13 additions and 0 deletions
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13
board/freescale/c29xpcie/ddr.c
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@ -5,6 +5,7 @@
*/
#include <common.h>
#include <i2c.h>
#include <asm/fsl_law.h>
#include <fsl_ddr_sdram.h>
#include <fsl_ddr_dimm_params.h>
@ -92,3 +93,15 @@ void fsl_ddr_board_options(memctl_options_t *popts,
popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS;
}
}
void get_spd(generic_spd_eeprom_t *spd, u8 i2c_address)
{
int ret = i2c_read(i2c_address, 0, 2, (uint8_t *)spd,
sizeof(generic_spd_eeprom_t));
if (ret) {
printf("DDR: failed to read SPD from address %u\n",
i2c_address);
memset(spd, 0, sizeof(generic_spd_eeprom_t));
}
}