/* * Copyright (C) 2010-2012 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include #include #include #include #include #include #if defined(CONFIG_VIDEO_MX5) #include #include #include #include #include #include #endif #include #ifdef CONFIG_IMX_ECSPI #include #endif #if CONFIG_I2C_MXC #include #endif #ifdef CONFIG_CMD_MMC #include #include #endif #ifdef CONFIG_ARCH_MMU #include #include #endif #ifdef CONFIG_GET_FEC_MAC_ADDR_FROM_IIM #include #endif #ifdef CONFIG_CMD_CLOCK #include #endif #ifdef CONFIG_ANDROID_RECOVERY #include #include #include #include #include #include #include #endif DECLARE_GLOBAL_DATA_PTR; static u32 system_rev; static enum boot_device boot_dev; #ifdef CONFIG_VIDEO_MX5 extern unsigned char fsl_bmp_reversed_600x400[]; extern int fsl_bmp_reversed_600x400_size; extern int g_ipu_hw_rev; #if defined(CONFIG_BMP_8BPP) unsigned short colormap[256]; #elif defined(CONFIG_BMP_16BPP) unsigned short colormap[65536]; #else unsigned short colormap[16777216]; #endif struct pwm_device pwm0 = { .pwm_id = 1, .pwmo_invert = 0, }; struct pwm_device pwm1 = { .pwm_id = 1, .pwmo_invert = 0, }; static int di = 1; extern int ipuv3_fb_init(struct fb_videomode *mode, int di, int interface_pix_fmt, ipu_di_clk_parent_t di_clk_parent, int di_clk_val); static struct fb_videomode lvds_xga = { "XGA", 60, 1024, 768, 15385, 220, 40, 21, 7, 60, 10, FB_SYNC_EXT, FB_VMODE_NONINTERLACED, 0, }; vidinfo_t panel_info; #endif static inline void setup_boot_device(void) { uint soc_sbmr = readl(SRC_BASE_ADDR + 0x4); uint bt_mem_ctl = (soc_sbmr & 0x000000FF) >> 4 ; uint bt_mem_type = (soc_sbmr & 0x00000008) >> 3; switch (bt_mem_ctl) { case 0x0: if (bt_mem_type) boot_dev = ONE_NAND_BOOT; else boot_dev = WEIM_NOR_BOOT; break; case 0x2: if (bt_mem_type) boot_dev = SATA_BOOT; else boot_dev = PATA_BOOT; break; case 0x3: if (bt_mem_type) boot_dev = SPI_NOR_BOOT; else boot_dev = I2C_BOOT; break; case 0x4: case 0x5: boot_dev = SD_BOOT; break; case 0x6: case 0x7: boot_dev = MMC_BOOT; break; case 0x8 ... 0xf: boot_dev = NAND_BOOT; break; default: boot_dev = UNKNOWN_BOOT; break; } } enum boot_device get_boot_device(void) { return boot_dev; } u32 get_board_rev_from_fuse(void) { u32 board_rev = readl(IIM_BASE_ADDR + 0x878); return board_rev; } u32 get_board_id_from_fuse(void) { u32 board_id = readl(IIM_BASE_ADDR + 0x87c); return board_id; } u32 get_board_rev(void) { return system_rev; } static inline void setup_soc_rev(void) { int reg; u32 board_rev = get_board_rev_from_fuse(); /* Si rev is obtained from ROM */ reg = __REG(ROM_SI_REV); switch (reg) { case 0x10: system_rev = 0x53000 | CHIP_REV_1_0; break; case 0x20: system_rev = 0x53000 | CHIP_REV_2_0; break; case 0x21: system_rev = 0x53000 | CHIP_REV_2_1; break; default: system_rev = 0x53000 | CHIP_REV_UNKNOWN; } switch (board_rev) { case 0x02: system_rev |= BOARD_REV_5; break; case 0x01: case 0x00: system_rev |= BOARD_REV_4; break; default: system_rev |= BOARD_REV_UNKNOWN; } } inline int is_soc_rev(int rev) { return (system_rev & 0xFF) - rev; } #ifdef CONFIG_ARCH_MMU void board_mmu_init(void) { unsigned long ttb_base = PHYS_SDRAM_1 + 0x4000; unsigned long i; /* * Set the TTB register */ asm volatile ("mcr p15,0,%0,c2,c0,0" : : "r"(ttb_base) /*:*/); /* * Set the Domain Access Control Register */ i = ARM_ACCESS_DACR_DEFAULT; asm volatile ("mcr p15,0,%0,c3,c0,0" : : "r"(i) /*:*/); /* * First clear all TT entries - ie Set them to Faulting */ memset((void *)ttb_base, 0, ARM_FIRST_LEVEL_PAGE_TABLE_SIZE); /* Actual Virtual Size Attributes Function */ /* Base Base MB cached? buffered? access permissions */ /* xxx00000 xxx00000 */ X_ARM_MMU_SECTION(0x000, 0x000, 0x010, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* ROM, 16M */ X_ARM_MMU_SECTION(0x010, 0x010, 0x060, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* Reserved, 96M */ X_ARM_MMU_SECTION(0x070, 0x070, 0x010, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* IRAM, 16M */ X_ARM_MMU_SECTION(0x080, 0x080, 0x080, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* Reserved region + TZIC. 1M */ X_ARM_MMU_SECTION(0x100, 0x100, 0x040, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* SATA */ X_ARM_MMU_SECTION(0x140, 0x140, 0x040, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* Reserved, 64M */ X_ARM_MMU_SECTION(0x180, 0x180, 0x080, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* IPUv3M */ X_ARM_MMU_SECTION(0x200, 0x200, 0x200, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* GPU */ X_ARM_MMU_SECTION(0x400, 0x400, 0x300, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* periperals */ X_ARM_MMU_SECTION(0x700, 0x700, 0x200, ARM_CACHEABLE, ARM_BUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* CSD0 512M */ X_ARM_MMU_SECTION(0x700, 0x900, 0x200, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* CSD0 512M */ X_ARM_MMU_SECTION(0xB00, 0xB00, 0x200, ARM_CACHEABLE, ARM_BUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* CSD0 512M */ X_ARM_MMU_SECTION(0xB00, 0xD00, 0x200, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* CSD0 512M */ X_ARM_MMU_SECTION(0xF00, 0xF00, 0x07F, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* CS1 EIM control*/ X_ARM_MMU_SECTION(0xF7F, 0xF7F, 0x001, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* NAND Flash buffer */ X_ARM_MMU_SECTION(0xF80, 0xF80, 0x080, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* iRam + GPU3D + Reserved */ /* Workaround for arm errata #709718 */ /* Setup PRRR so device is always mapped to non-shared */ asm volatile ("mrc p15, 0, %0, c10, c2, 0" : "=r"(i) : /*:*/); i &= (~(3 << 0x10)); asm volatile ("mcr p15, 0, %0, c10, c2, 0" : : "r"(i) /*:*/); /* Enable MMU */ MMU_ON(); } #endif int dram_init(void) { gd->bd->bi_dram[0].start = PHYS_SDRAM_1; gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; gd->bd->bi_dram[1].start = PHYS_SDRAM_2; gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; return 0; } static void setup_uart(void) { /* UART1 RXD */ mxc_request_iomux(MX53_PIN_CSI0_D11, IOMUX_CONFIG_ALT2); mxc_iomux_set_pad(MX53_PIN_CSI0_D11, 0x1E4); mxc_iomux_set_input(MUX_IN_UART1_IPP_UART_RXD_MUX_SELECT_INPUT, 0x1); /* UART1 TXD */ mxc_request_iomux(MX53_PIN_CSI0_D10, IOMUX_CONFIG_ALT2); mxc_iomux_set_pad(MX53_PIN_CSI0_D10, 0x1E4); } #ifdef CONFIG_I2C_MXC static void setup_i2c(unsigned int module_base) { switch (module_base) { case I2C1_BASE_ADDR: /* i2c1 SDA */ mxc_request_iomux(MX53_PIN_CSI0_D8, IOMUX_CONFIG_ALT5 | IOMUX_CONFIG_SION); mxc_iomux_set_input(MUX_IN_I2C1_IPP_SDA_IN_SELECT_INPUT, INPUT_CTL_PATH0); mxc_iomux_set_pad(MX53_PIN_CSI0_D8, PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | PAD_CTL_HYS_ENABLE); /* i2c1 SCL */ mxc_request_iomux(MX53_PIN_CSI0_D9, IOMUX_CONFIG_ALT5 | IOMUX_CONFIG_SION); mxc_iomux_set_input(MUX_IN_I2C1_IPP_SCL_IN_SELECT_INPUT, INPUT_CTL_PATH0); mxc_iomux_set_pad(MX53_PIN_CSI0_D9, PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | PAD_CTL_HYS_ENABLE); break; case I2C2_BASE_ADDR: /* i2c2 SDA */ mxc_request_iomux(MX53_PIN_KEY_ROW3, IOMUX_CONFIG_ALT4 | IOMUX_CONFIG_SION); mxc_iomux_set_input(MUX_IN_I2C2_IPP_SDA_IN_SELECT_INPUT, INPUT_CTL_PATH0); mxc_iomux_set_pad(MX53_PIN_KEY_ROW3, PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | PAD_CTL_HYS_ENABLE); /* i2c2 SCL */ mxc_request_iomux(MX53_PIN_KEY_COL3, IOMUX_CONFIG_ALT4 | IOMUX_CONFIG_SION); mxc_iomux_set_input(MUX_IN_I2C2_IPP_SCL_IN_SELECT_INPUT, INPUT_CTL_PATH0); mxc_iomux_set_pad(MX53_PIN_KEY_COL3, PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | PAD_CTL_HYS_ENABLE); break; case I2C3_BASE_ADDR: /* GPIO_3 for I2C3_SCL */ mxc_request_iomux(MX53_PIN_GPIO_3, IOMUX_CONFIG_ALT2 | IOMUX_CONFIG_SION); mxc_iomux_set_input(MUX_IN_I2C3_IPP_SCL_IN_SELECT_INPUT, INPUT_CTL_PATH1); mxc_iomux_set_pad(MX53_PIN_GPIO_3, PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE | PAD_CTL_DRV_HIGH | PAD_CTL_360K_PD | PAD_CTL_HYS_ENABLE); /* GPIO_16 for I2C3_SDA */ mxc_request_iomux(MX53_PIN_GPIO_6, IOMUX_CONFIG_ALT2 | IOMUX_CONFIG_SION); mxc_iomux_set_input(MUX_IN_I2C3_IPP_SDA_IN_SELECT_INPUT, INPUT_CTL_PATH1); mxc_iomux_set_pad(MX53_PIN_GPIO_6, PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE | PAD_CTL_DRV_HIGH | PAD_CTL_360K_PD | PAD_CTL_HYS_ENABLE); /* No device is connected via I2C3 in EVK and ARM2 */ break; default: printf("Invalid I2C base: 0x%x\n", module_base); break; } } /* Note: udelay() is not accurate for i2c timing */ static void __udelay(int time) { int i, j; for (i = 0; i < time; i++) { for (j = 0; j < 200; j++) { asm("nop"); asm("nop"); } } } /* DA9053 I2C SDA stuck low issue: the I2C block in DA9053 may not correctly * receive a Power On Reset and device is in unknown state during start-up. * The only way to get the chip into known state before any communication * with the Chip via I2C is to dummy clock the I2C and bring it in a state * where I2C can communicate. Dialog suggested to provide 9 clock on SCL. * Dialog don't know the exact reason for the fault and assume it is because * some random noise or spurious behaviour. * This has to been done in host platform specific I2C driver during * start-up when the I2C is being configured at platform level to supply with * dummy 9 clock on SCL. Dialog I2C driver has no control to provide dummy 9 * clock on SCL. */ #define I2C1_SDA_GPIO5_26_BIT_MASK (1 << 26) #define I2C1_SCL_GPIO5_27_BIT_MASK (1 << 27) int da9053_i2c_startup_reset(void) { unsigned int reg, i, retry = 3; do { /* set I2C1_SDA as GPIO input */ mxc_request_iomux(MX53_PIN_CSI0_D8, IOMUX_CONFIG_ALT1); reg = readl(GPIO5_BASE_ADDR + 0x4); reg &= ~I2C1_SDA_GPIO5_26_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x4); /* set I2C1_SCL as GPIO output */ mxc_request_iomux(MX53_PIN_CSI0_D9, IOMUX_CONFIG_ALT1); reg = readl(GPIO5_BASE_ADDR + 0x0); reg |= I2C1_SCL_GPIO5_27_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x0); reg = readl(GPIO5_BASE_ADDR + 0x4); reg |= I2C1_SCL_GPIO5_27_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x4); __udelay(10000); for (i = 0; i < 10; i++) { reg = readl(GPIO5_BASE_ADDR + 0x0); reg |= I2C1_SCL_GPIO5_27_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x0); __udelay(4); reg = readl(GPIO5_BASE_ADDR + 0x0); reg &= ~I2C1_SCL_GPIO5_27_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x0); __udelay(4); } reg = readl(GPIO5_BASE_ADDR + 0x0); reg |= I2C1_SCL_GPIO5_27_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x0); __udelay(20); /* I2C1_SDA = output */ reg = readl(GPIO5_BASE_ADDR + 0x4); reg |= I2C1_SDA_GPIO5_26_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x4); /* I2C1_SDA = H i2c start and stop bit */ reg = readl(GPIO5_BASE_ADDR + 0x0); reg |= I2C1_SDA_GPIO5_26_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x0); __udelay(4); /* I2C1_SDA = L */ reg = readl(GPIO5_BASE_ADDR + 0x0); reg &= ~I2C1_SDA_GPIO5_26_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x0); __udelay(4); /* I2C1_SCL = L */ reg = readl(GPIO5_BASE_ADDR + 0x0); reg &= ~I2C1_SCL_GPIO5_27_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x0); __udelay(4); /* I2C1_SCL = H */ reg = readl(GPIO5_BASE_ADDR + 0x0); reg |= I2C1_SCL_GPIO5_27_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x0); __udelay(4); /* I2C1_SDA = H */ reg = readl(GPIO5_BASE_ADDR + 0x0); reg |= I2C1_SDA_GPIO5_26_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x0); __udelay(4); /* I2C1_SDA = input */ reg = readl(GPIO5_BASE_ADDR + 0x4); reg &= ~I2C1_SDA_GPIO5_26_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + 0x4); reg = readl(GPIO5_BASE_ADDR + 0x8); if (reg & I2C1_SDA_GPIO5_26_BIT_MASK) { break; } else printf("***I2C1_SDA = low***\n"); } while (retry--); /* restore I2C1_SDA/I2C1_SCL iomux */ mxc_request_iomux(MX53_PIN_CSI0_D8, IOMUX_CONFIG_ALT5 | IOMUX_CONFIG_SION); mxc_request_iomux(MX53_PIN_CSI0_D9, IOMUX_CONFIG_ALT5 | IOMUX_CONFIG_SION); return 0; } #define DA9053_DUMMY_WRITE_REG (0xff) int i2c_read_da9053(uchar chip, uint addr, int alen, uchar *buf, int len) { int ret = 0; uchar dummy = 0xff; ret = i2c_read(chip, addr, alen, buf, len); if (ret == 0) { ret = i2c_write(chip, DA9053_DUMMY_WRITE_REG, 1, &dummy, 1); if (0 != ret) printf("[I2C-Rd-DA9053]dummy write reg fail\n"); return 0; } else { printf("[I2C-DA9053]read i2c fail\n"); return -1; } } int i2c_write_da9053(uchar chip, uint addr, int alen, uchar *buf, int len) { int ret = 0; uchar dummy = 0xff; ret = i2c_write(chip, addr, alen, buf, len); if (ret == 0) { ret = i2c_write(chip, DA9053_DUMMY_WRITE_REG, 1, &dummy, 1); if (0 != ret) printf("[I2C-Wr-DA9053]dummy write reg fail\n"); return 0; } else { printf("[I2C-DA9053]write i2c fail\n"); return -1; } } #ifdef CONFIG_I2C_MXC #define I2C1_SDA_GPIO5_26_BIT_MASK (1 << 26) #define I2C1_SCL_GPIO5_27_BIT_MASK (1 << 27) #define I2C2_SCL_GPIO4_12_BIT_MASK (1 << 12) #define I2C2_SDA_GPIO4_13_BIT_MASK (1 << 13) #define I2C3_SCL_GPIO1_3_BIT_MASK (1 << 3) #define I2C3_SDA_GPIO1_6_BIT_MASK (1 << 6) static void mx53_i2c_gpio_scl_direction(int bus, int output) { u32 reg; switch (bus) { case 1: mxc_request_iomux(MX53_PIN_CSI0_D9, IOMUX_CONFIG_ALT1); reg = readl(GPIO5_BASE_ADDR + GPIO_GDIR); if (output) reg |= I2C1_SCL_GPIO5_27_BIT_MASK; else reg &= ~I2C1_SCL_GPIO5_27_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + GPIO_GDIR); break; case 2: mxc_request_iomux(MX53_PIN_KEY_COL3, IOMUX_CONFIG_ALT1); reg = readl(GPIO4_BASE_ADDR + GPIO_GDIR); if (output) reg |= I2C2_SCL_GPIO4_12_BIT_MASK; else reg &= ~I2C2_SCL_GPIO4_12_BIT_MASK; writel(reg, GPIO4_BASE_ADDR + GPIO_GDIR); break; case 3: mxc_request_iomux(MX53_PIN_GPIO_3, IOMUX_CONFIG_ALT1); reg = readl(GPIO1_BASE_ADDR + GPIO_GDIR); if (output) reg |= I2C3_SCL_GPIO1_3_BIT_MASK; else reg &= I2C3_SCL_GPIO1_3_BIT_MASK; writel(reg, GPIO1_BASE_ADDR + GPIO_GDIR); break; } } /* set 1 to output, sent 0 to input */ static void mx53_i2c_gpio_sda_direction(int bus, int output) { u32 reg; switch (bus) { case 1: mxc_request_iomux(MX53_PIN_CSI0_D8, IOMUX_CONFIG_ALT1); reg = readl(GPIO5_BASE_ADDR + GPIO_GDIR); if (output) { mxc_iomux_set_pad(MX53_PIN_CSI0_D8, PAD_CTL_ODE_OPENDRAIN_ENABLE | PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU); reg |= I2C1_SDA_GPIO5_26_BIT_MASK; } else reg &= ~I2C1_SDA_GPIO5_26_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + GPIO_GDIR); break; case 2: mxc_request_iomux(MX53_PIN_KEY_ROW3, IOMUX_CONFIG_ALT1); mxc_iomux_set_pad(MX53_PIN_KEY_ROW3, PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | PAD_CTL_HYS_ENABLE); reg = readl(GPIO4_BASE_ADDR + GPIO_GDIR); if (output) reg |= I2C2_SDA_GPIO4_13_BIT_MASK; else reg &= ~I2C2_SDA_GPIO4_13_BIT_MASK; writel(reg, GPIO4_BASE_ADDR + GPIO_GDIR); case 3: mxc_request_iomux(MX53_PIN_GPIO_6, IOMUX_CONFIG_ALT1); mxc_iomux_set_pad(MX53_PIN_GPIO_6, PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE | PAD_CTL_DRV_HIGH | PAD_CTL_360K_PD | PAD_CTL_HYS_ENABLE); reg = readl(GPIO1_BASE_ADDR + GPIO_GDIR); if (output) reg |= I2C3_SDA_GPIO1_6_BIT_MASK; else reg &= ~I2C3_SDA_GPIO1_6_BIT_MASK; writel(reg, GPIO1_BASE_ADDR + GPIO_GDIR); default: break; } } /* set 1 to high 0 to low */ static void mx53_i2c_gpio_scl_set_level(int bus, int high) { u32 reg; switch (bus) { case 1: reg = readl(GPIO5_BASE_ADDR + GPIO_DR); if (high) reg |= I2C1_SCL_GPIO5_27_BIT_MASK; else reg &= ~I2C1_SCL_GPIO5_27_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + GPIO_DR); break; case 2: reg = readl(GPIO4_BASE_ADDR + GPIO_DR); if (high) reg |= I2C2_SCL_GPIO4_12_BIT_MASK; else reg &= ~I2C2_SCL_GPIO4_12_BIT_MASK; writel(reg, GPIO4_BASE_ADDR + GPIO_DR); break; case 3: reg = readl(GPIO1_BASE_ADDR + GPIO_DR); if (high) reg |= I2C3_SCL_GPIO1_3_BIT_MASK; else reg &= ~I2C3_SCL_GPIO1_3_BIT_MASK; writel(reg, GPIO1_BASE_ADDR + GPIO_DR); break; } } /* set 1 to high 0 to low */ static void mx53_i2c_gpio_sda_set_level(int bus, int high) { u32 reg; switch (bus) { case 1: reg = readl(GPIO5_BASE_ADDR + GPIO_DR); if (high) reg |= I2C1_SDA_GPIO5_26_BIT_MASK; else reg &= ~I2C1_SDA_GPIO5_26_BIT_MASK; writel(reg, GPIO5_BASE_ADDR + GPIO_DR); break; case 2: reg = readl(GPIO4_BASE_ADDR + GPIO_DR); if (high) reg |= I2C2_SDA_GPIO4_13_BIT_MASK; else reg &= ~I2C2_SDA_GPIO4_13_BIT_MASK; writel(reg, GPIO4_BASE_ADDR + GPIO_DR); break; case 3: reg = readl(GPIO1_BASE_ADDR + GPIO_DR); if (high) reg |= I2C3_SDA_GPIO1_6_BIT_MASK; else reg &= ~I2C3_SDA_GPIO1_6_BIT_MASK; writel(reg, GPIO1_BASE_ADDR + GPIO_DR); break; } } static int mx53_i2c_gpio_check_sda(int bus) { u32 reg; int result = 0; switch (bus) { case 1: reg = readl(GPIO5_BASE_ADDR + GPIO_PSR); result = !!(reg & I2C1_SDA_GPIO5_26_BIT_MASK); break; case 2: reg = readl(GPIO4_BASE_ADDR + GPIO_PSR); result = !!(reg & I2C2_SDA_GPIO4_13_BIT_MASK); break; case 3: reg = readl(GPIO1_BASE_ADDR + GPIO_PSR); result = !!(reg & I2C3_SDA_GPIO1_6_BIT_MASK); break; } return result; } /* Random reboot cause i2c SDA low issue: * the i2c bus busy because some device pull down the I2C SDA * line. This happens when Host is reading some byte from slave, and * then host is reset/reboot. Since in this case, device is * controlling i2c SDA line, the only thing host can do this give the * clock on SCL and sending NAK, and STOP to finish this * transaction. * * How to fix this issue: * detect if the SDA was low on bus send 8 dummy clock, and 1 * clock + NAK, and STOP to finish i2c transaction the pending * transfer. */ int i2c_bus_recovery(void) { int i, bus, result = 0; for (bus = 1; bus <= 3; bus++) { mx53_i2c_gpio_sda_direction(bus, 0); if (mx53_i2c_gpio_check_sda(bus) == 0) { printf("i2c: I2C%d SDA is low, start i2c recovery...\n", bus); mx53_i2c_gpio_scl_direction(bus, 1); mx53_i2c_gpio_scl_set_level(bus, 1); __udelay(10000); for (i = 0; i < 9; i++) { mx53_i2c_gpio_scl_set_level(bus, 1); __udelay(5); mx53_i2c_gpio_scl_set_level(bus, 0); __udelay(5); } /* 9th clock here, the slave should already release the SDA, we can set SDA as high to a NAK.*/ mx53_i2c_gpio_sda_direction(bus, 1); mx53_i2c_gpio_sda_set_level(bus, 1); __udelay(1); /* Pull up SDA first */ mx53_i2c_gpio_scl_set_level(bus, 1); __udelay(5); /* plus pervious 1 us */ mx53_i2c_gpio_scl_set_level(bus, 0); __udelay(5); mx53_i2c_gpio_sda_set_level(bus, 0); __udelay(5); mx53_i2c_gpio_scl_set_level(bus, 1); __udelay(5); /* Here: SCL is high, and SDA from low to high, it's a * stop condition */ mx53_i2c_gpio_sda_set_level(bus, 1); __udelay(5); mx53_i2c_gpio_sda_direction(bus, 0); if (mx53_i2c_gpio_check_sda(bus) == 1) printf("I2C%d Recovery success\n", bus); else { printf("I2C%d Recovery failed, I2C1 SDA still low!!!\n", bus); result |= 1 << bus; } } /* configure back to i2c */ switch (bus) { case 1: setup_i2c(I2C1_BASE_ADDR); break; case 2: setup_i2c(I2C2_BASE_ADDR); break; case 3: setup_i2c(I2C3_BASE_ADDR); break; } } return result; } #endif /* restore VUSB 2V5 active after suspend */ #define BUCKPERI_RESTORE_SW_STEP (0x55) /* restore VUSB 2V5 power supply after suspend */ #define SUPPLY_RESTORE_VPERISW_EN (0x20) #define DA9052_ID1213_REG (35) #define DA9052_SUPPLY_REG (60) void setup_pmic_voltages(void) { uchar value; int retries = 10, ret = -1; i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); da9053_i2c_startup_reset(); #ifdef CONFIG_CPU_1_2G /* Increase VDDGP as 1.3V for 1.2GHz */ value = 0x60; #else /* increase VDDGP as 1.25V for 1GHZ */ value = 0x5e; #endif do { if (0 != i2c_write_da9053(0x48, 0x2e, 1, &value, 1)) { printf("da9052_i2c_is_connected - i2c write failed.....\n"); } else { printf("da9052_i2c_is_connected - i2c write success....\n"); ret = 0; } } while (ret != 0 && retries--); i2c_read_da9053(0x48, 60, 1, &value, 1); value |= 0x1; i2c_write_da9053(0x48, 60, 1, &value, 1); /* restore VUSB_2V5 when reset from suspend state */ value = BUCKPERI_RESTORE_SW_STEP; i2c_write_da9053(0x48, DA9052_ID1213_REG, 1, &value, 1); i2c_read_da9053(0x48, DA9052_SUPPLY_REG, 1, &value, 1); value |= SUPPLY_RESTORE_VPERISW_EN; i2c_write_da9053(0x48, DA9052_SUPPLY_REG, 1, &value, 1); } #endif #ifdef CONFIG_IMX_ECSPI s32 spi_get_cfg(struct imx_spi_dev_t *dev) { switch (dev->slave.cs) { case 0: /* Zigbee */ dev->base = CSPI1_BASE_ADDR; dev->freq = 25000000; dev->ss_pol = IMX_SPI_ACTIVE_HIGH; dev->ss = 0; dev->fifo_sz = 64 * 4; dev->us_delay = 0; break; case 1: /* SPI-NOR */ dev->base = CSPI1_BASE_ADDR; dev->freq = 25000000; dev->ss_pol = IMX_SPI_ACTIVE_LOW; dev->ss = 1; dev->fifo_sz = 64 * 4; dev->us_delay = 0; break; default: printf("Invalid Bus ID!\n"); } return 0; } void spi_io_init(struct imx_spi_dev_t *dev) { switch (dev->base) { case CSPI1_BASE_ADDR: /* SCLK */ mxc_request_iomux(MX53_PIN_EIM_D16, IOMUX_CONFIG_ALT4); mxc_iomux_set_pad(MX53_PIN_EIM_D16, 0x104); mxc_iomux_set_input(MUX_IN_ECSPI1_IPP_CSPI_CLK_IN_SELECT_INPUT, 0x3); /* MISO */ mxc_request_iomux(MX53_PIN_EIM_D17, IOMUX_CONFIG_ALT4); mxc_iomux_set_pad(MX53_PIN_EIM_D17, 0x104); mxc_iomux_set_input(MUX_IN_ECSPI1_IPP_IND_MISO_SELECT_INPUT, 0x3); /* MOSI */ mxc_request_iomux(MX53_PIN_EIM_D18, IOMUX_CONFIG_ALT4); mxc_iomux_set_pad(MX53_PIN_EIM_D18, 0x104); mxc_iomux_set_input(MUX_IN_ECSPI1_IPP_IND_MOSI_SELECT_INPUT, 0x3); if (dev->ss == 0) { mxc_request_iomux(MX53_PIN_EIM_EB2, IOMUX_CONFIG_ALT4); mxc_iomux_set_pad(MX53_PIN_EIM_EB2, 0x104); mxc_iomux_set_input( MUX_IN_ECSPI1_IPP_IND_SS_B_1_SELECT_INPUT, 0x3); } else if (dev->ss == 1) { mxc_request_iomux(MX53_PIN_EIM_D19, IOMUX_CONFIG_ALT4); mxc_iomux_set_pad(MX53_PIN_EIM_D19, 0x104); mxc_iomux_set_input( MUX_IN_ECSPI1_IPP_IND_SS_B_2_SELECT_INPUT, 0x2); } break; case CSPI2_BASE_ADDR: case CSPI3_BASE_ADDR: /* ecspi2-3 fall through */ break; default: break; } } #endif #if defined(CONFIG_DWC_AHSATA) static void setup_sata_device(void) { u32 *tmp_base = (u32 *)(IIM_BASE_ADDR + 0x180c); u32 reg; mxc_request_iomux(MX53_PIN_EIM_DA3, IOMUX_CONFIG_ALT1); /* GPIO_3_3 */ reg = readl(GPIO3_BASE_ADDR); reg |= (0x1 << 3); writel(reg, GPIO3_BASE_ADDR); reg = readl(GPIO3_BASE_ADDR + 0x4); reg |= (0x1 << 3); writel(reg, GPIO3_BASE_ADDR + 0x4); udelay(1000); /* Set USB_PHY1 clk, fuse bank4 row3 bit2 */ set_usb_phy1_clk(); writel((readl(tmp_base) & (~0x7)) | 0x4, tmp_base); } #endif #ifdef CONFIG_MXC_FEC #ifdef CONFIG_GET_FEC_MAC_ADDR_FROM_IIM int fec_get_mac_addr(unsigned char *mac) { u32 *iim1_mac_base = (u32 *)(IIM_BASE_ADDR + IIM_BANK_AREA_1_OFFSET + CONFIG_IIM_MAC_ADDR_OFFSET); int i; for (i = 0; i < 6; ++i, ++iim1_mac_base) mac[i] = (u8)readl(iim1_mac_base); return 0; } #endif static void setup_fec(void) { volatile unsigned int reg; /*FEC_MDIO*/ mxc_request_iomux(MX53_PIN_FEC_MDIO, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_MDIO, 0x1FC); mxc_iomux_set_input(MUX_IN_FEC_FEC_MDI_SELECT_INPUT, 0x1); /*FEC_MDC*/ mxc_request_iomux(MX53_PIN_FEC_MDC, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_MDC, 0x004); /* FEC RXD1 */ mxc_request_iomux(MX53_PIN_FEC_RXD1, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_RXD1, 0x180); /* FEC RXD0 */ mxc_request_iomux(MX53_PIN_FEC_RXD0, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_RXD0, 0x180); /* FEC TXD1 */ mxc_request_iomux(MX53_PIN_FEC_TXD1, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_TXD1, 0x004); /* FEC TXD0 */ mxc_request_iomux(MX53_PIN_FEC_TXD0, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_TXD0, 0x004); /* FEC TX_EN */ mxc_request_iomux(MX53_PIN_FEC_TX_EN, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_TX_EN, 0x004); /* FEC TX_CLK */ mxc_request_iomux(MX53_PIN_FEC_REF_CLK, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_REF_CLK, 0x180); /* FEC RX_ER */ mxc_request_iomux(MX53_PIN_FEC_RX_ER, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_RX_ER, 0x180); /* FEC CRS */ mxc_request_iomux(MX53_PIN_FEC_CRS_DV, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_FEC_CRS_DV, 0x180); /* phy reset: gpio7-6 */ mxc_request_iomux(MX53_PIN_ATA_DA_0, IOMUX_CONFIG_ALT1); reg = readl(GPIO7_BASE_ADDR + 0x0); reg &= ~0x40; writel(reg, GPIO7_BASE_ADDR + 0x0); reg = readl(GPIO7_BASE_ADDR + 0x4); reg |= 0x40; writel(reg, GPIO7_BASE_ADDR + 0x4); udelay(500); reg = readl(GPIO7_BASE_ADDR + 0x0); reg |= 0x40; writel(reg, GPIO7_BASE_ADDR + 0x0); } #endif #ifdef CONFIG_NET_MULTI int board_eth_init(bd_t *bis) { int rc = -ENODEV; return rc; } #endif #ifdef CONFIG_CMD_MMC struct fsl_esdhc_cfg esdhc_cfg[2] = { {MMC_SDHC1_BASE_ADDR, 1, 1}, {MMC_SDHC3_BASE_ADDR, 1, 1}, }; #ifdef CONFIG_DYNAMIC_MMC_DEVNO int get_mmc_env_devno(void) { uint soc_sbmr = readl(SRC_BASE_ADDR + 0x4); return (soc_sbmr & 0x00300000) ? 1 : 0; } #endif #ifdef CONFIG_EMMC_DDR_PORT_DETECT int detect_mmc_emmc_ddr_port(struct fsl_esdhc_cfg *cfg) { return (MMC_SDHC3_BASE_ADDR == cfg->esdhc_base) ? 1 : 0; } #endif int esdhc_gpio_init(bd_t *bis) { s32 status = 0; u32 index = 0; for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; ++index) { switch (index) { case 0: mxc_request_iomux(MX53_PIN_SD1_CMD, IOMUX_CONFIG_ALT0); mxc_request_iomux(MX53_PIN_SD1_CLK, IOMUX_CONFIG_ALT0); mxc_request_iomux(MX53_PIN_SD1_DATA0, IOMUX_CONFIG_ALT0); mxc_request_iomux(MX53_PIN_SD1_DATA1, IOMUX_CONFIG_ALT0); mxc_request_iomux(MX53_PIN_SD1_DATA2, IOMUX_CONFIG_ALT0); mxc_request_iomux(MX53_PIN_SD1_DATA3, IOMUX_CONFIG_ALT0); mxc_iomux_set_pad(MX53_PIN_SD1_CMD, 0x1E4); mxc_iomux_set_pad(MX53_PIN_SD1_CLK, 0xD4); mxc_iomux_set_pad(MX53_PIN_SD1_DATA0, 0x1D4); mxc_iomux_set_pad(MX53_PIN_SD1_DATA1, 0x1D4); mxc_iomux_set_pad(MX53_PIN_SD1_DATA2, 0x1D4); mxc_iomux_set_pad(MX53_PIN_SD1_DATA3, 0x1D4); break; case 1: mxc_request_iomux(MX53_PIN_ATA_RESET_B, IOMUX_CONFIG_ALT2); mxc_request_iomux(MX53_PIN_ATA_IORDY, IOMUX_CONFIG_ALT2); mxc_request_iomux(MX53_PIN_ATA_DATA8, IOMUX_CONFIG_ALT4); mxc_request_iomux(MX53_PIN_ATA_DATA9, IOMUX_CONFIG_ALT4); mxc_request_iomux(MX53_PIN_ATA_DATA10, IOMUX_CONFIG_ALT4); mxc_request_iomux(MX53_PIN_ATA_DATA11, IOMUX_CONFIG_ALT4); mxc_request_iomux(MX53_PIN_ATA_DATA0, IOMUX_CONFIG_ALT4); mxc_request_iomux(MX53_PIN_ATA_DATA1, IOMUX_CONFIG_ALT4); mxc_request_iomux(MX53_PIN_ATA_DATA2, IOMUX_CONFIG_ALT4); mxc_request_iomux(MX53_PIN_ATA_DATA3, IOMUX_CONFIG_ALT4); mxc_iomux_set_pad(MX53_PIN_ATA_RESET_B, 0x1E4); mxc_iomux_set_pad(MX53_PIN_ATA_IORDY, 0xD4); mxc_iomux_set_pad(MX53_PIN_ATA_DATA8, 0x1D4); mxc_iomux_set_pad(MX53_PIN_ATA_DATA9, 0x1D4); mxc_iomux_set_pad(MX53_PIN_ATA_DATA10, 0x1D4); mxc_iomux_set_pad(MX53_PIN_ATA_DATA11, 0x1D4); mxc_iomux_set_pad(MX53_PIN_ATA_DATA0, 0x1D4); mxc_iomux_set_pad(MX53_PIN_ATA_DATA1, 0x1D4); mxc_iomux_set_pad(MX53_PIN_ATA_DATA2, 0x1D4); mxc_iomux_set_pad(MX53_PIN_ATA_DATA3, 0x1D4); break; default: printf("Warning: you configured more ESDHC controller" "(%d) as supported by the board(2)\n", CONFIG_SYS_FSL_ESDHC_NUM); return status; } status |= fsl_esdhc_initialize(bis, &esdhc_cfg[index]); } return status; } int board_mmc_init(bd_t *bis) { if (!esdhc_gpio_init(bis)) return 0; else return -1; } #endif #ifdef CONFIG_LCD void lcd_enable(void) { char *s; int ret; unsigned int reg; s = getenv("lvds_num"); di = simple_strtol(s, NULL, 10); /* * hw_rev 2: IPUV3DEX * hw_rev 3: IPUV3M * hw_rev 4: IPUV3H */ g_ipu_hw_rev = IPUV3_HW_REV_IPUV3M; /* 20KHz PWM wave, 50% duty */ if (di == 1) { imx_pwm_config(pwm1, 25000, 50000); imx_pwm_enable(pwm1); } else { imx_pwm_config(pwm0, 25000, 50000); imx_pwm_enable(pwm0); } mxc_request_iomux(MX53_PIN_GPIO_1, IOMUX_CONFIG_ALT4); ret = ipuv3_fb_init(&lvds_xga, di, IPU_PIX_FMT_RGB666, DI_PCLK_LDB, 65000000); if (ret) puts("LCD cannot be configured\n"); reg = readl(CCM_BASE_ADDR + CLKCTL_CSCMR2); reg &= ~0xFC000000; reg |= 0xB4000F00; writel(reg, CCM_BASE_ADDR + CLKCTL_CSCMR2); reg = readl(CCM_BASE_ADDR + CLKCTL_CCGR6); reg |= 0xF0000000; writel(reg, CCM_BASE_ADDR + CLKCTL_CCGR6); if (di == 1) writel(0x40C, IOMUXC_BASE_ADDR + 0x8); else writel(0x201, IOMUXC_BASE_ADDR + 0x8); } #endif #ifdef CONFIG_VIDEO_MX5 void panel_info_init(void) { panel_info.vl_bpix = LCD_BPP; panel_info.vl_col = lvds_xga.xres; panel_info.vl_row = lvds_xga.yres; panel_info.cmap = colormap; } #endif #ifdef CONFIG_SPLASH_SCREEN void setup_splash_image(void) { char *s; ulong addr; s = getenv("splashimage"); if (s != NULL) { addr = simple_strtoul(s, NULL, 16); #if defined(CONFIG_ARCH_MMU) addr = ioremap_nocache(iomem_to_phys(addr), fsl_bmp_reversed_600x400_size); #endif memcpy((char *)addr, (char *)fsl_bmp_reversed_600x400, fsl_bmp_reversed_600x400_size); } } #endif int board_init(void) { unsigned int val; #ifdef CONFIG_MFG /* MFG firmware need reset usb to avoid host crash firstly */ #define USBCMD 0x140 val = readl(OTG_BASE_ADDR + USBCMD); val &= ~0x1; /*RS bit*/ writel(val, OTG_BASE_ADDR + USBCMD); #endif /* Workaround: To make watchdog timeout work in mx53 * SMD, force warm reset as cold reset */ val = readl(SRC_BASE_ADDR); val &= 0xFFFFFFFE; writel(val, SRC_BASE_ADDR); setup_boot_device(); setup_soc_rev(); gd->bd->bi_arch_number = MACH_TYPE_MX53_SMD; /* board id for linux */ /* address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; setup_uart(); #ifdef CONFIG_MXC_FEC setup_fec(); #endif #if defined(CONFIG_DWC_AHSATA) setup_sata_device(); #endif #ifdef CONFIG_VIDEO_MX5 panel_info_init(); gd->fb_base = CONFIG_FB_BASE; #ifdef CONFIG_ARCH_MMU gd->fb_base = ioremap_nocache(iomem_to_phys(gd->fb_base), 0); #endif #endif return 0; } #ifdef CONFIG_ANDROID_RECOVERY int check_recovery_cmd_file(void) { disk_partition_t info; int button_pressed = 0; ulong part_length; int filelen = 0; char *env; u32 reg; int i; /* For test only */ /* When detecting android_recovery_switch, * enter recovery mode directly */ env = getenv("android_recovery_switch"); if (!strcmp(env, "1")) { printf("Env recovery detected!\nEnter recovery mode!\n"); return 1; } printf("Checking for recovery command file...\n"); switch (get_boot_device()) { case MMC_BOOT: case SD_BOOT: { for (i = 0; i < 2; i++) { block_dev_desc_t *dev_desc = NULL; struct mmc *mmc = find_mmc_device(i); dev_desc = get_dev("mmc", i); if (NULL == dev_desc) { printf("** Block device MMC %d not supported\n", i); continue; } mmc_init(mmc); if (get_partition_info(dev_desc, CONFIG_ANDROID_CACHE_PARTITION_MMC, &info)) { printf("** Bad partition %d **\n", CONFIG_ANDROID_CACHE_PARTITION_MMC); continue; } part_length = ext2fs_set_blk_dev(dev_desc, CONFIG_ANDROID_CACHE_PARTITION_MMC); if (part_length == 0) { printf("** Bad partition - mmc %d:%d **\n", i, CONFIG_ANDROID_CACHE_PARTITION_MMC); ext2fs_close(); continue; } if (!ext2fs_mount(part_length)) { printf("** Bad ext2 partition or " "disk - mmc %d:%d **\n", i, CONFIG_ANDROID_CACHE_PARTITION_MMC); ext2fs_close(); continue; } filelen = ext2fs_open(CONFIG_ANDROID_RECOVERY_CMD_FILE); ext2fs_close(); break; } } break; case NAND_BOOT: return 0; break; case SPI_NOR_BOOT: return 0; break; case UNKNOWN_BOOT: default: return 0; break; } /* Check Recovery Combo Button press or not. * @TODO: Need At least Two key, but in SMD board, * only can use one Volume key. */ mxc_request_iomux(MX53_PIN_ATA_DATA14, IOMUX_CONFIG_ALT1); reg = readl(GPIO2_BASE_ADDR + GPIO_GDIR); reg &= ~(1<<14); writel(reg, GPIO2_BASE_ADDR + GPIO_GDIR); reg = readl(GPIO2_BASE_ADDR + GPIO_PSR); if (!(reg & (1 << 14))) { /* Vol - is low assert */ button_pressed = 1; printf("Recovery key pressed\n"); } return (filelen > 0 || button_pressed); } #endif int board_late_init(void) { #ifdef CONFIG_I2C_MXC setup_i2c(CONFIG_SYS_I2C_PORT); /* first recovery I2C bus in case other device are reset * during transcation */ i2c_bus_recovery(); /* Increase VDDGP voltage */ setup_pmic_voltages(); #ifdef CONFIG_CPU_1_2G /* Switch to 1.2GHz */ clk_config(CONFIG_REF_CLK_FREQ, 1200, CPU_CLK); #else /* Switch to 1GHZ */ clk_config(CONFIG_REF_CLK_FREQ, 1000, CPU_CLK); #endif #endif return 0; } int checkboard(void) { printf("Board: MX53-SMD "); switch (get_board_rev_from_fuse()) { case 0x2: printf("Rev. B\n"); break; case 0x1: default: printf("Rev. A\n"); break; } printf("Boot Reason: ["); switch (__REG(SRC_BASE_ADDR + 0x8)) { case 0x0001: printf("POR"); break; case 0x0009: printf("RST"); break; case 0x0010: case 0x0011: printf("WDOG"); break; default: printf("unknown"); } printf("]\n"); printf("Boot Device: "); switch (get_boot_device()) { case WEIM_NOR_BOOT: printf("NOR\n"); break; case ONE_NAND_BOOT: printf("ONE NAND\n"); break; case PATA_BOOT: printf("PATA\n"); break; case SATA_BOOT: printf("SATA\n"); break; case I2C_BOOT: printf("I2C\n"); break; case SPI_NOR_BOOT: printf("SPI NOR\n"); break; case SD_BOOT: printf("SD\n"); break; case MMC_BOOT: printf("MMC\n"); break; case NAND_BOOT: printf("NAND\n"); break; case UNKNOWN_BOOT: default: printf("UNKNOWN\n"); break; } return 0; }