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

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>

diff --git a/board/freescale/c29xpcie/ddr.c b/board/freescale/c29xpcie/ddr.c
index 968655c1b3474454e5f5b78eb9b9b6abbd6287e8..7c915b036f35303ad2b2e0b49c3dc7f842c86691 100644 (file)
--- a/board/freescale/c29xpcie/ddr.c
+++ b/board/freescale/c29xpcie/ddr.c
@@ -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));
+       }
+}