AM43xx Starter Kit is a new board based on AM437x line of SoCs. Being a low-cost EVM and small size EVM are intended to provide an entry level development platform on a full fledged Hardware System.
Signed-off-by: Felipe Balbi balbi@ti.com --- board/ti/am43xx/board.c | 72 +++++++++++++++++++++++++++++++++++++++++++- board/ti/am43xx/board.h | 5 +++ include/configs/am43xx_evm.h | 2 ++ 3 files changed, 78 insertions(+), 1 deletion(-)
diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c index 6197076..b184c20 100644 --- a/board/ti/am43xx/board.c +++ b/board/ti/am43xx/board.c @@ -217,6 +217,28 @@ const struct emif_regs ddr3_emif_regs_400Mhz = { .emif_rd_wr_exec_thresh = 0x00000405 };
+static const struct emif_regs ddr3_sk_emif_regs_400Mhz = { + .sdram_config = 0x638413b2, + .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 = 0x0, + .emif_ddr_phy_ctlr_1 = 0x0e084007, + .emif_ddr_ext_phy_ctrl_1 = 0x08020080, + .emif_ddr_ext_phy_ctrl_2 = 0x00700070, + .emif_ddr_ext_phy_ctrl_3 = 0x00700070, + .emif_ddr_ext_phy_ctrl_4 = 0x00700070, + .emif_ddr_ext_phy_ctrl_5 = 0x00700070, + .emif_rd_wr_lvl_rmp_win = 0x0, + .emif_rd_wr_lvl_rmp_ctl = 0x0, + .emif_rd_wr_lvl_ctl = 0x0, + .emif_rd_wr_exec_thresh = 0x00000405 +}; + const u32 ext_phy_ctrl_const_base_ddr3[] = { 0x00400040, 0x00350035, @@ -240,6 +262,48 @@ const u32 ext_phy_ctrl_const_base_ddr3[] = { 0x08102040 };
+static const u32 ext_phy_ctrl_const_base_ddr3_sk[] = { + /* first 5 are taken care by emif_regs */ + 0x00700070, + + 0x00350035, + 0x00350035, + 0x00350035, + 0x00350035, + 0x00350035, + + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + + 0x00150015, + 0x00150015, + 0x00150015, + 0x00150015, + 0x00150015, + + 0x00800080, + 0x00800080, + + 0x40000000, + + 0x08102040, + + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, +}; + void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size) { if (board_is_eposevm()) { @@ -248,6 +312,9 @@ void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size) } else if (board_is_gpevm()) { *regs = ext_phy_ctrl_const_base_ddr3; *size = ARRAY_SIZE(ext_phy_ctrl_const_base_ddr3); + } else if (board_is_sk()) { + *regs = ext_phy_ctrl_const_base_ddr3_sk; + *size = ARRAY_SIZE(ext_phy_ctrl_const_base_ddr3_sk); }
return; @@ -257,7 +324,7 @@ const struct dpll_params *get_dpll_ddr_params(void) { if (board_is_eposevm()) return &epos_evm_dpll_ddr; - else if (board_is_gpevm()) + else if (board_is_gpevm() || board_is_sk()) return &gp_evm_dpll_ddr;
printf(" Board '%s' not supported\n", am43xx_board_name); @@ -410,6 +477,9 @@ void sdram_init(void) enable_vtt_regulator(); config_ddr(0, &ioregs_ddr3, NULL, NULL, &ddr3_emif_regs_400Mhz, 0); + } else if (board_is_sk()) { + config_ddr(400, &ioregs_ddr3, NULL, NULL, + &ddr3_sk_emif_regs_400Mhz, 0); } } #endif diff --git a/board/ti/am43xx/board.h b/board/ti/am43xx/board.h index 091162e..017047d 100644 --- a/board/ti/am43xx/board.h +++ b/board/ti/am43xx/board.h @@ -47,6 +47,11 @@ static inline int board_is_gpevm(void) return !strncmp(am43xx_board_name, "AM43__GP", HDR_NAME_LEN); }
+static inline int board_is_sk(void) +{ + return !strncmp(am43xx_board_name, "AM43__SK", HDR_NAME_LEN); +} + void enable_uart0_pin_mux(void); void enable_board_pin_mux(void); void enable_i2c0_pin_mux(void); diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h index 823cba6..974ce98 100644 --- a/include/configs/am43xx_evm.h +++ b/include/configs/am43xx_evm.h @@ -226,6 +226,8 @@ "setenv fdtfile am43x-epos-evm.dtb; fi; " \ "if test $board_name = AM43__GP; then " \ "setenv fdtfile am437x-gp-evm.dtb; fi; " \ + "if test $board_name = AM43__SK; then " \ + "setenv fdtfile am437x-sk-evm.dtb; fi; " \ "if test $fdtfile = undefined; then " \ "echo WARNING: Could not determine device tree; fi; \0"