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board/ls1021aqds: Add DDR4 support

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LS1021AQDS has a variant with DDR4 slot. This patch adds a new defconfig
for this variant to enable DDR4 support. RAW timing parameters are not
added for DDR4. The board timing parameters are only tuned for single-
rank 1600 and 1800MT/s with Micron DIMM 9ASF51272AZ-2G1A1 due to DIMM
availability.

Signed-off-by: York Sun <yorksun@freescale.com>
CC: Alison Wang <alison.wang@freescale.com>
This commit is contained in:
York Sun
2014-09-11 13:32:07 -07:00
parent f80d6472b4
commit c7eae7fcb1
6 changed files with 30 additions and 2 deletions
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4
include/configs/ls1021aqds.h
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@@ -49,10 +49,12 @@ unsigned long get_board_ddr_clk(void);
#define CONFIG_DDR_SPD
#define SPD_EEPROM_ADDRESS 0x51
#define CONFIG_SYS_SPD_BUS_NUM 0
#define CONFIG_SYS_DDR_RAW_TIMING
#define CONFIG_FSL_DDR_INTERACTIVE /* Interactive debugging */
#ifndef CONFIG_SYS_FSL_DDR4
#define CONFIG_SYS_FSL_DDR3 /* Use DDR3 memory */
#define CONFIG_SYS_DDR_RAW_TIMING
#endif
#define CONFIG_DIMM_SLOTS_PER_CTLR 1
#define CONFIG_CHIP_SELECTS_PER_CTRL 4