[U-Boot] [PATCH v3] powerpc/c29xpcie: Getting DDR SPD image from 16-bit sub-address EEPROM

[Po Liu]

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 at freescale.com>
---
Changes for V2:
	- add #include <i2c.h>
Changes for V3:
	- change spd type to uint8_t according to the define

 board/freescale/c29xpcie/ddr.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/board/freescale/c29xpcie/ddr.c b/board/freescale/c29xpcie/ddr.c
index 57a9b61..ff7989a 100644
--- 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 <asm/fsl_ddr_sdram.h>
 #include <asm/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));
+	}
+}
-- 
1.8.0