Part Number: AM4379
Tool/software: Linux
We customized our own board based on am437x-IDK， but change sdram to Micron MT41K256M16TW-107 IT.
BTW, the sdram of am437x-IDK is Micron MT41K256M16HA-125:E.
We use the default sdram parameters(as below) to our custom board and it can boot normally. The SDK version is 05.01.00.11.
static const struct emif_regs ddr3_idk_emif_regs_400Mhz = {
.sdram_config = 0x61a11b32,
.sdram_config2 = 0x00000000,
.ref_ctrl = 0x00000c30,
.sdram_tim1 = 0xeaaad4db,
.sdram_tim2 = 0x266b7fda,
.sdram_tim3 = 0x107f8678,
.read_idle_ctrl = 0x00050000,
.zq_config = 0x50074be4,
.temp_alert_config = 0x00000000,
.emif_ddr_phy_ctlr_1 = 0x00008009,
.emif_ddr_ext_phy_ctrl_1 = 0x08020080,
.emif_ddr_ext_phy_ctrl_2 = 0x00000040,
.emif_ddr_ext_phy_ctrl_3 = 0x0000003e,
.emif_ddr_ext_phy_ctrl_4 = 0x00000051,
.emif_ddr_ext_phy_ctrl_5 = 0x00000051,
.emif_rd_wr_lvl_rmp_win = 0x00000000,
.emif_rd_wr_lvl_rmp_ctl = 0x00000000,
.emif_rd_wr_lvl_ctl = 0x00000000,
.emif_rd_wr_exec_thresh = 0x00000405,
.emif_prio_class_serv_map = 0x00000000,
.emif_connect_id_serv_1_map = 0x00000000,
.emif_connect_id_serv_2_map = 0x00000000,
.emif_cos_config = 0x00ffffff
};
Do we need to verify the parameters to make sure it is suitable for our board?
