when porting u-boot to a new am43xx board, it helps to know the name of the current unsupported board so we don't have to hunt for design documents to figure out what's written in the EEPROM.

Signed-off-by: Felipe Balbi balbi@ti.com --- board/ti/am43xx/board.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c index 71af1ae..6197076 100644 --- a/board/ti/am43xx/board.c +++ b/board/ti/am43xx/board.c @@ -260,7 +260,7 @@ const struct dpll_params *get_dpll_ddr_params(void) else if (board_is_gpevm()) return &gp_evm_dpll_ddr;

- puts(" Board not supported\n"); + printf(" Board '%s' not supported\n", am43xx_board_name); return NULL; }

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"

AM437x Starter Kit has a qspi flash and gbit ethernet support. By muxing those signals, we can use those interfaces from u-boot.

Signed-off-by: Felipe Balbi balbi@ti.com --- board/ti/am43xx/mux.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/board/ti/am43xx/mux.c b/board/ti/am43xx/mux.c index 77c53d2..50967e1 100644 --- a/board/ti/am43xx/mux.c +++ b/board/ti/am43xx/mux.c @@ -97,6 +97,9 @@ void enable_board_pin_mux(void) if (board_is_gpevm()) { configure_module_pin_mux(gpio5_7_pin_mux); configure_module_pin_mux(rgmii1_pin_mux); + } else if (board_is_sk()) { + configure_module_pin_mux(rgmii1_pin_mux); + configure_module_pin_mux(qspi_pin_mux); } else if (board_is_eposevm()) { configure_module_pin_mux(rmii1_pin_mux); configure_module_pin_mux(qspi_pin_mux);