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 --- Chagne log v3: Fix commit message, drop name of ls1021aqds_d4. v2: Drop the name of TARGET_LS1021AQDS_D4 in Kconfig.

arch/arm/include/asm/arch-ls102xa/config.h | 5 +++++ board/freescale/ls1021aqds/ddr.c | 9 ++++++++- board/freescale/ls1021aqds/ddr.h | 10 ++++++++++ configs/ls1021aqds_ddr4_nor_defconfig | 3 +++ include/configs/ls1021aqds.h | 4 +++- 5 files changed, 29 insertions(+), 2 deletions(-) create mode 100644 configs/ls1021aqds_ddr4_nor_defconfig

diff --git a/arch/arm/include/asm/arch-ls102xa/config.h b/arch/arm/include/asm/arch-ls102xa/config.h index ed78c33..a500b5b 100644 --- a/arch/arm/include/asm/arch-ls102xa/config.h +++ b/arch/arm/include/asm/arch-ls102xa/config.h @@ -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 diff --git a/board/freescale/ls1021aqds/ddr.c b/board/freescale/ls1021aqds/ddr.c index 679c654..5898e33 100644 --- a/board/freescale/ls1021aqds/ddr.c +++ b/board/freescale/ls1021aqds/ddr.c @@ -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 diff --git a/board/freescale/ls1021aqds/ddr.h b/board/freescale/ls1021aqds/ddr.h index 16d87cb..f819c99 100644 --- a/board/freescale/ls1021aqds/ddr.h +++ b/board/freescale/ls1021aqds/ddr.h @@ -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 {} };

diff --git a/configs/ls1021aqds_ddr4_nor_defconfig b/configs/ls1021aqds_ddr4_nor_defconfig new file mode 100644 index 0000000..3c57481 --- /dev/null +++ b/configs/ls1021aqds_ddr4_nor_defconfig @@ -0,0 +1,3 @@ +CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4" +CONFIG_ARM=y +CONFIG_TARGET_LS1021AQDS=y diff --git a/include/configs/ls1021aqds.h b/include/configs/ls1021aqds.h index 657e3b6..bb47813 100644 --- a/include/configs/ls1021aqds.h +++ b/include/configs/ls1021aqds.h @@ -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