diff options
Diffstat (limited to 'board/ti/am335x/board.c')
| -rw-r--r-- | board/ti/am335x/board.c | 110 |
1 files changed, 39 insertions, 71 deletions
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c index 728afc2..cc04426 100644 --- a/board/ti/am335x/board.c +++ b/board/ti/am335x/board.c @@ -30,12 +30,6 @@ DECLARE_GLOBAL_DATA_PTR; -static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE; - -/* MII mode defines */ -#define MII_MODE_ENABLE 0x0 -#define RGMII_MODE_ENABLE 0x3A - /* GPIO that controls power to DDR on EVM-SK */ #define GPIO_DDR_VTT_EN 7 @@ -242,59 +236,35 @@ int spl_start_uboot(void) } #endif -#endif +#define OSC (V_OSCK/1000000) +const struct dpll_params dpll_ddr = { + 266, OSC-1, 1, -1, -1, -1, -1}; +const struct dpll_params dpll_ddr_evm_sk = { + 303, OSC-1, 1, -1, -1, -1, -1}; +const struct dpll_params dpll_ddr_bone_black = { + 400, OSC-1, 1, -1, -1, -1, -1}; -/* - * early system init of muxing and clocks. - */ -void s_init(void) +const struct dpll_params *get_dpll_ddr_params(void) { - __maybe_unused struct am335x_baseboard_id header; - - /* - * The ROM will only have set up sufficient pinmux to allow for the - * first 4KiB NOR to be read, we must finish doing what we know of - * the NOR mux in this space in order to continue. - */ -#ifdef CONFIG_NOR_BOOT - asm("stmfd sp!, {r2 - r4}"); - asm("movw r4, #0x8A4"); - asm("movw r3, #0x44E1"); - asm("orr r4, r4, r3, lsl #16"); - asm("mov r2, #9"); - asm("mov r3, #8"); - asm("gpmc_mux: str r2, [r4], #4"); - asm("subs r3, r3, #1"); - asm("bne gpmc_mux"); - asm("ldmfd sp!, {r2 - r4}"); -#endif - -#ifdef CONFIG_SPL_BUILD - /* - * Save the boot parameters passed from romcode. - * We cannot delay the saving further than this, - * to prevent overwrites. - */ - save_omap_boot_params(); -#endif - - /* WDT1 is already running when the bootloader gets control - * Disable it to avoid "random" resets - */ - writel(0xAAAA, &wdtimer->wdtwspr); - while (readl(&wdtimer->wdtwwps) != 0x0) - ; - writel(0x5555, &wdtimer->wdtwspr); - while (readl(&wdtimer->wdtwwps) != 0x0) - ; + struct am335x_baseboard_id header; -#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) - /* Setup the PLLs and the clocks for the peripherals */ - pll_init(); + enable_i2c0_pin_mux(); + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + if (read_eeprom(&header) < 0) + puts("Could not get board ID.\n"); - /* Enable RTC32K clock */ - rtc32k_enable(); + if (board_is_evm_sk(&header)) + return &dpll_ddr_evm_sk; + else if (board_is_bone_lt(&header)) + return &dpll_ddr_bone_black; + else if (board_is_evm_15_or_later(&header)) + return &dpll_ddr_evm_sk; + else + return &dpll_ddr; +} +void set_uart_mux_conf(void) +{ #ifdef CONFIG_SERIAL1 enable_uart0_pin_mux(); #endif /* CONFIG_SERIAL1 */ @@ -313,27 +283,25 @@ void s_init(void) #ifdef CONFIG_SERIAL6 enable_uart5_pin_mux(); #endif /* CONFIG_SERIAL6 */ +} - uart_soft_reset(); +void set_mux_conf_regs(void) +{ + __maybe_unused struct am335x_baseboard_id header; + + if (read_eeprom(&header) < 0) + puts("Could not get board ID.\n"); -#if defined(CONFIG_NOR_BOOT) - /* We want our console now. */ - gd->baudrate = CONFIG_BAUDRATE; - serial_init(); - gd->have_console = 1; -#else - gd = &gdata; + enable_board_pin_mux(&header); +} - preloader_console_init(); -#endif +void sdram_init(void) +{ + __maybe_unused struct am335x_baseboard_id header; - /* Initalize the board header */ - enable_i2c0_pin_mux(); - i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); if (read_eeprom(&header) < 0) puts("Could not get board ID.\n"); - enable_board_pin_mux(&header); if (board_is_evm_sk(&header)) { /* * EVM SK 1.2A and later use gpio0_7 to enable DDR3. @@ -357,8 +325,8 @@ void s_init(void) else config_ddr(266, MT47H128M16RT25E_IOCTRL_VALUE, &ddr2_data, &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0); -#endif } +#endif /* * Basic board specific setup. Pinmux has been handled already. @@ -371,7 +339,7 @@ int board_init(void) STNOR_GPMC_CONFIG5, STNOR_GPMC_CONFIG6, STNOR_GPMC_CONFIG7 }; #endif - gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100; + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; gpmc_init(); @@ -488,7 +456,7 @@ int board_eth_init(bd_t *bis) cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_MII; } else { - writel(RGMII_MODE_ENABLE, &cdev->miisel); + writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel); cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RGMII; } |