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board: ti: am43xx: add support for AM43xx Starter Kit

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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>
This commit is contained in:
Felipe Balbi 2014-06-10 15:01:20 -05:00 committed by Tom Rini
parent 9f1220a9ca
commit 9cb9f3331b
3 changed files with 78 additions and 1 deletions
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72
board/ti/am43xx/board.c
View file

@ -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 = 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 @@ 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

5
board/ti/am43xx/board.h
View file

@ -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);

2
include/configs/am43xx_evm.h
View file

@ -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"