Tool/software: Linux
Hi,
we designed our own board refer to AM5728 EVM board, and our design calls for only one emif(emif1) to be used.
we have used 2X8Gb DDR3 ,the DDP 8Gb DDR3 SDRAM D-die is organized as a 64Mbit x 16 I/Os x 8banks device.
In /board/ti/am57xx/board.c,
static const struct dmm_lisa_map_regs beagle_x15_lisa_regs = {
.dmm_lisa_map_0 = 0x00000000,
.dmm_lisa_map_1 = 0x00000000,
.dmm_lisa_map_2 = 0x80700100,
.dmm_lisa_map_3 = 0xFF020100,
.is_ma_present = 0x1
};
static const struct emif_regs beagle_x15_emif1_ddr3_532mhz_emif_regs = {
.sdram_config_init = 0x61851bb2,
.sdram_config = 0x61851bb2,
.sdram_config2 = 0x00000000,
.ref_ctrl = 0x000040F1,
.ref_ctrl_final = 0x00001035,
.sdram_tim1 = 0xcccf36b3,
.sdram_tim2 = 0x30bf7fda,
.sdram_tim3 = 0x407f8ba8,
.read_idle_ctrl = 0x00050000,
.zq_config = 0x5007190b,
.temp_alert_config = 0x00000000,
.emif_ddr_phy_ctlr_1_init = 0x0024400b,
.emif_ddr_phy_ctlr_1 = 0x0e24400b,
.emif_ddr_ext_phy_ctrl_1 = 0x10040100,
.emif_ddr_ext_phy_ctrl_2 = 0x00910091,
.emif_ddr_ext_phy_ctrl_3 = 0x00950095,
.emif_ddr_ext_phy_ctrl_4 = 0x009b009b,
.emif_ddr_ext_phy_ctrl_5 = 0x009e009e,
.emif_rd_wr_lvl_rmp_win = 0x00000000,
.emif_rd_wr_lvl_rmp_ctl = 0x80000000,
.emif_rd_wr_lvl_ctl = 0x00000000,
.emif_rd_wr_exec_thresh = 0x00000305
}
but we can only find 1GB address space start 0x80000000 end 0xbfffffff, the other half can not accessed.
what's wrong?
