Update following DDR related settings for T1040QDS -Correct number of chip selects to two as t1040qds supports two Chip selects. -Update board_specific_parameters udimm structure with settings derived via calibration. -Reduced I2C speed to 50KHz as DDR-SPD does not get reliably read at 400KHz.

Signed-off-by: Poonam Aggrwal poonam.aggrwal@freescale.com Signed-off-by: Priyanka Jain Priyanka.Jain@freescale.com --- Changes for v2: Reduced I2C speed to 50KHz.

board/freescale/t1040qds/ddr.h | 22 ++++++++++++---------- include/configs/T1040QDS.h | 6 +++--- 2 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/board/freescale/t1040qds/ddr.h b/board/freescale/t1040qds/ddr.h index 8ee206e..afa72af 100644 --- a/board/freescale/t1040qds/ddr.h +++ b/board/freescale/t1040qds/ddr.h @@ -31,16 +31,18 @@ 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 | */ - {2, 1350, 4, 4, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0}, - {2, 1350, 0, 5, 7, 0x0709090b, 0x0c0c0d09, 0xff, 2, 0}, - {2, 1666, 4, 4, 8, 0x080a0a0d, 0x0d10100b, 0xff, 2, 0}, - {2, 1666, 0, 5, 7, 0x080a0a0c, 0x0d0d0e0a, 0xff, 2, 0}, - {2, 1900, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0}, - {2, 2140, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0}, - {1, 1350, 0, 5, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0}, - {1, 1700, 0, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0}, - {1, 1900, 0, 4, 8, 0x080a0a0c, 0x0e0e0f0a, 0xff, 2, 0}, - {1, 2140, 0, 4, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0}, + {2, 833, 4, 4, 6, 0x06060607, 0x08080807, 0xff, 2, 0}, + {2, 833, 0, 4, 6, 0x06060607, 0x08080807, 0xff, 2, 0}, + {2, 1350, 4, 4, 7, 0x0708080A, 0x0A0B0C09, 0xff, 2, 0}, + {2, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09, 0xff, 2, 0}, + {2, 1666, 4, 4, 7, 0x0808090B, 0x0C0D0E0A, 0xff, 2, 0}, + {2, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A, 0xff, 2, 0}, + {1, 833, 4, 4, 6, 0x06060607, 0x08080807, 0xff, 2, 0}, + {1, 833, 0, 4, 6, 0x06060607, 0x08080807, 0xff, 2, 0}, + {1, 1350, 4, 4, 7, 0x0708080A, 0x0A0B0C09, 0xff, 2, 0}, + {1, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09, 0xff, 2, 0}, + {1, 1666, 4, 4, 7, 0x0808090B, 0x0C0D0E0A, 0xff, 2, 0}, + {1, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A, 0xff, 2, 0}, {} };

diff --git a/include/configs/T1040QDS.h b/include/configs/T1040QDS.h index 43a5778..484b237 100644 --- a/include/configs/T1040QDS.h +++ b/include/configs/T1040QDS.h @@ -167,7 +167,7 @@ unsigned long get_board_ddr_clk(void);

/* CONFIG_NUM_DDR_CONTROLLERS is defined in include/asm/config_mpc85xx.h */ #define CONFIG_DIMM_SLOTS_PER_CTLR 1 -#define CONFIG_CHIP_SELECTS_PER_CTRL (4 * CONFIG_DIMM_SLOTS_PER_CTLR) +#define CONFIG_CHIP_SELECTS_PER_CTRL (2 * CONFIG_DIMM_SLOTS_PER_CTLR)

#define CONFIG_DDR_SPD #define CONFIG_SYS_FSL_DDR3 @@ -413,9 +413,9 @@ unsigned long get_board_ddr_clk(void); /* I2C */ #define CONFIG_SYS_I2C #define CONFIG_SYS_I2C_FSL /* Use FSL common I2C driver */ -#define CONFIG_SYS_FSL_I2C_SPEED 400000 /* I2C speed in Hz */ +#define CONFIG_SYS_FSL_I2C_SPEED 50000 /* I2C speed in Hz */ #define CONFIG_SYS_FSL_I2C_SLAVE 0x7F -#define CONFIG_SYS_FSL_I2C2_SPEED 400000 /* I2C speed in Hz */ +#define CONFIG_SYS_FSL_I2C2_SPEED 50000 /* I2C speed in Hz */ #define CONFIG_SYS_FSL_I2C2_SLAVE 0x7F #define CONFIG_SYS_FSL_I2C_OFFSET 0x118000 #define CONFIG_SYS_FSL_I2C2_OFFSET 0x119000