diff options
Diffstat (limited to 'arch/arm/cpu/armv7/am33xx/board.c')
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/board.c | 239 |
1 files changed, 2 insertions, 237 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c index 978b184fb..e4c123cd2 100644 --- a/arch/arm/cpu/armv7/am33xx/board.c +++ b/arch/arm/cpu/armv7/am33xx/board.c @@ -36,9 +36,6 @@ DECLARE_GLOBAL_DATA_PTR; -struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE; -struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE; - static const struct gpio_bank gpio_bank_am33xx[4] = { { (void *)AM33XX_GPIO0_BASE, METHOD_GPIO_24XX }, { (void *)AM33XX_GPIO1_BASE, METHOD_GPIO_24XX }, @@ -48,153 +45,11 @@ static const struct gpio_bank gpio_bank_am33xx[4] = { const struct gpio_bank *const omap_gpio_bank = gpio_bank_am33xx; -/* MII mode defines */ -#define MII_MODE_ENABLE 0x0 -#define RGMII_MODE_ENABLE 0xA - -/* GPIO that controls power to DDR on EVM-SK */ -#define GPIO_DDR_VTT_EN 7 - -static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; - -static struct am335x_baseboard_id __attribute__((section (".data"))) header; - -static inline int board_is_bone(void) -{ - return !strncmp(header.name, "A335BONE", HDR_NAME_LEN); -} - -static inline int board_is_evm_sk(void) -{ - return !strncmp("A335X_SK", header.name, HDR_NAME_LEN); -} - -/* - * Read header information from EEPROM into global structure. - */ -static int read_eeprom(void) -{ - /* Check if baseboard eeprom is available */ - if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) { - puts("Could not probe the EEPROM; something fundamentally " - "wrong on the I2C bus.\n"); - return -ENODEV; - } - - /* read the eeprom using i2c */ - if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)&header, - sizeof(header))) { - puts("Could not read the EEPROM; something fundamentally" - " wrong on the I2C bus.\n"); - return -EIO; - } - - if (header.magic != 0xEE3355AA) { - /* - * read the eeprom using i2c again, - * but use only a 1 byte address - */ - if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, - (uchar *)&header, sizeof(header))) { - puts("Could not read the EEPROM; something " - "fundamentally wrong on the I2C bus.\n"); - return -EIO; - } - - if (header.magic != 0xEE3355AA) { - printf("Incorrect magic number (0x%x) in EEPROM\n", - header.magic); - return -EINVAL; - } - } - - return 0; -} - -/* UART Defines */ -#ifdef CONFIG_SPL_BUILD -#define UART_RESET (0x1 << 1) -#define UART_CLK_RUNNING_MASK 0x1 -#define UART_SMART_IDLE_EN (0x1 << 0x3) -#endif - -/* - * Determine what type of DDR we have. - */ -static short inline board_memory_type(void) -{ - /* The following boards are known to use DDR3. */ - if (board_is_evm_sk()) - return EMIF_REG_SDRAM_TYPE_DDR3; - - return EMIF_REG_SDRAM_TYPE_DDR2; -} - -/* - * early system init of muxing and clocks. - */ -void s_init(void) -{ - /* 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) - ; - -#ifdef CONFIG_SPL_BUILD - /* Setup the PLLs and the clocks for the peripherals */ - pll_init(); - - /* UART softreset */ - u32 regVal; - - enable_uart0_pin_mux(); - - regVal = readl(&uart_base->uartsyscfg); - regVal |= UART_RESET; - writel(regVal, &uart_base->uartsyscfg); - while ((readl(&uart_base->uartsyssts) & - UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK) - ; - - /* Disable smart idle */ - regVal = readl(&uart_base->uartsyscfg); - regVal |= UART_SMART_IDLE_EN; - writel(regVal, &uart_base->uartsyscfg); - - gd = &gdata; - - preloader_console_init(); - - /* Initalize the board header */ - enable_i2c0_pin_mux(); - i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); - if (read_eeprom() < 0) - puts("Could not get board ID.\n"); - - enable_board_pin_mux(&header); - if (board_is_evm_sk()) { - /* - * EVM SK 1.2A and later use gpio0_7 to enable DDR3. - * This is safe enough to do on older revs. - */ - gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en"); - gpio_direction_output(GPIO_DDR_VTT_EN, 1); - } - - config_ddr(board_memory_type()); -#endif -} - #if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD) -int board_mmc_init(bd_t *bis) +int cpu_mmc_init(bd_t *bis) { int ret; - + ret = omap_mmc_init(0, 0, 0); if (ret) return ret; @@ -208,93 +63,3 @@ void setup_clocks_for_console(void) /* Not yet implemented */ return; } - -/* - * Basic board specific setup. Pinmux has been handled already. - */ -int board_init(void) -{ - i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); - if (read_eeprom() < 0) - puts("Could not get board ID.\n"); - - gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100; - - return 0; -} - -#ifdef CONFIG_DRIVER_TI_CPSW -static void cpsw_control(int enabled) -{ - /* VTP can be added here */ - - return; -} - -static struct cpsw_slave_data cpsw_slaves[] = { - { - .slave_reg_ofs = 0x208, - .sliver_reg_ofs = 0xd80, - .phy_id = 0, - }, - { - .slave_reg_ofs = 0x308, - .sliver_reg_ofs = 0xdc0, - .phy_id = 1, - }, -}; - -static struct cpsw_platform_data cpsw_data = { - .mdio_base = AM335X_CPSW_MDIO_BASE, - .cpsw_base = AM335X_CPSW_BASE, - .mdio_div = 0xff, - .channels = 8, - .cpdma_reg_ofs = 0x800, - .slaves = 1, - .slave_data = cpsw_slaves, - .ale_reg_ofs = 0xd00, - .ale_entries = 1024, - .host_port_reg_ofs = 0x108, - .hw_stats_reg_ofs = 0x900, - .mac_control = (1 << 5), - .control = cpsw_control, - .host_port_num = 0, - .version = CPSW_CTRL_VERSION_2, -}; - -int board_eth_init(bd_t *bis) -{ - uint8_t mac_addr[6]; - uint32_t mac_hi, mac_lo; - - if (!eth_getenv_enetaddr("ethaddr", mac_addr)) { - debug("<ethaddr> not set. Reading from E-fuse\n"); - /* try reading mac address from efuse */ - mac_lo = readl(&cdev->macid0l); - mac_hi = readl(&cdev->macid0h); - mac_addr[0] = mac_hi & 0xFF; - mac_addr[1] = (mac_hi & 0xFF00) >> 8; - mac_addr[2] = (mac_hi & 0xFF0000) >> 16; - mac_addr[3] = (mac_hi & 0xFF000000) >> 24; - mac_addr[4] = mac_lo & 0xFF; - mac_addr[5] = (mac_lo & 0xFF00) >> 8; - - if (is_valid_ether_addr(mac_addr)) - eth_setenv_enetaddr("ethaddr", mac_addr); - else - return -1; - } - - if (board_is_bone()) { - writel(MII_MODE_ENABLE, &cdev->miisel); - cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = - PHY_INTERFACE_MODE_MII; - } else { - writel(RGMII_MODE_ENABLE, &cdev->miisel); - cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = - PHY_INTERFACE_MODE_RGMII; - } - - return cpsw_register(&cpsw_data); -} -#endif |