board: ti: am43xx: add support for AM43xx Starter Kit
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>
diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
index 6197076..6379cef 100644
--- a/board/ti/am43xx/board.c
+++ b/board/ti/am43xx/board.c
@@ -217,6 +217,28 @@
.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 = 0x0e084008,
+ .emif_ddr_ext_phy_ctrl_1 = 0x08020080,
+ .emif_ddr_ext_phy_ctrl_2 = 0x89,
+ .emif_ddr_ext_phy_ctrl_3 = 0x90,
+ .emif_ddr_ext_phy_ctrl_4 = 0x8e,
+ .emif_ddr_ext_phy_ctrl_5 = 0x8d,
+ .emif_rd_wr_lvl_rmp_win = 0x0,
+ .emif_rd_wr_lvl_rmp_ctl = 0x00000000,
+ .emif_rd_wr_lvl_ctl = 0x00000000,
+ .emif_rd_wr_exec_thresh = 0x00000000,
+};
+
const u32 ext_phy_ctrl_const_base_ddr3[] = {
0x00400040,
0x00350035,
@@ -240,6 +262,48 @@
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 @@
} 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 @@
{
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 @@
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 @@
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"