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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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm/include/asm/arch-ls102xa/config.h
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@ -50,7 +50,11 @@
#ifdef CONFIG_DDR_SPD
#define CONFIG_SYS_FSL_DDR_BE
#define CONFIG_VERY_BIG_RAM
#ifdef CONFIG_SYS_FSL_DDR4
#define CONFIG_SYS_FSL_DDRC_GEN4
#else
#define CONFIG_SYS_FSL_DDRC_ARM_GEN3
#endif
#define CONFIG_SYS_FSL_DDR
#define CONFIG_SYS_LS1_DDR_BLOCK1_SIZE ((phys_size_t)2 << 30)
#define CONFIG_MAX_MEM_MAPPED CONFIG_SYS_LS1_DDR_BLOCK1_SIZE
@ -71,6 +75,7 @@
#define CONFIG_MAX_CPUS 2
#define CONFIG_SYS_FSL_IFC_BANK_COUNT 8
#define CONFIG_NUM_DDR_CONTROLLERS 1
#define CONFIG_SYS_FSL_DDR_VER FSL_DDR_VER_5_0
#else
#error SoC not defined
#endif

1
board/freescale/ls1021aqds/MAINTAINERS
View File

@ -4,3 +4,4 @@ S: Maintained
F: board/freescale/ls1021aqds/
F: include/configs/ls1021aqds.h
F: configs/ls1021aqds_nor_defconfig
F: configs/ls1021aqds_ddr4_nor_defconfig

9
board/freescale/ls1021aqds/ddr.c
View File

@ -79,7 +79,6 @@ found:
*/
popts->wrlvl_override = 1;
popts->wrlvl_sample = 0xf;
popts->cswl_override = DDR_CSWL_CS0;
/*
* Rtt and Rtt_WR override
@ -89,9 +88,17 @@ found:
/* Enable ZQ calibration */
popts->zq_en = 1;
#ifdef CONFIG_SYS_FSL_DDR4
popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_80ohm);
popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_80ohm) |
DDR_CDR2_VREF_OVRD(70); /* Vref = 70% */
#else
popts->cswl_override = DDR_CSWL_CS0;
/* DHC_EN =1, ODT = 75 Ohm */
popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm);
popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm);
#endif
}
#ifdef CONFIG_SYS_DDR_RAW_TIMING

10
board/freescale/ls1021aqds/ddr.h
View File

@ -30,6 +30,13 @@ static const struct board_specific_parameters udimm0[] = {
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
* ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
*/
#ifdef CONFIG_SYS_FSL_DDR4
{2, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A,},
{2, 1900, 0, 4, 6, 0x08080A0C, 0x0D0E0F0A,},
{1, 1666, 0, 4, 8, 0x090A0B0B, 0x0C0D0E0C,},
{1, 1900, 0, 4, 9, 0x0A0B0C0B, 0x0D0E0F0D,},
{1, 2200, 0, 4, 10, 0x0B0C0D0C, 0x0E0F110E,},
#elif defined(CONFIG_SYS_FSL_DDR3)
{1, 833, 1, 6, 8, 0x06060607, 0x08080807, 0x1f, 2, 0},
{1, 1350, 1, 6, 8, 0x0708080A, 0x0A0B0C09, 0x1f, 2, 0},
{1, 833, 2, 6, 8, 0x06060607, 0x08080807, 0x1f, 2, 0},
@ -39,6 +46,9 @@ static const struct board_specific_parameters udimm0[] = {
{2, 1350, 0, 6, 8, 0x0708080A, 0x0A0B0C09, 0x1f, 2, 0},
{2, 1666, 4, 4, 0xa, 0x0B08090C, 0x0B0E0D0A, 0x1f, 2, 0},
{2, 1666, 0, 4, 0xa, 0x0B08090C, 0x0B0E0D0A, 0x1f, 2, 0},
#else
#error DDR type not defined
#endif
{}
};

3
configs/ls1021aqds_ddr4_nor_defconfig Normal file
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@ -0,0 +1,3 @@
CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4"
CONFIG_ARM=y
CONFIG_TARGET_LS1021AQDS=y

4
include/configs/ls1021aqds.h
View File

@ -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