/* * Copyright (C) 2011 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 #include #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_IMX_ECSPI #include #endif DECLARE_GLOBAL_DATA_PTR; static u32 system_rev; static enum boot_device boot_dev; static void set_gpio_output_val(unsigned base, unsigned mask, unsigned val) { unsigned reg = readl(base + GPIO_DR); if (val & 1) reg |= mask; /* set high */ else reg &= ~mask; /* clear low */ writel(reg, base + GPIO_DR); reg = readl(base + GPIO_GDIR); reg |= mask; /* configure GPIO line as output */ writel(reg, base + GPIO_GDIR); } 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: boot_dev = SATA_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(void) { system_rev = 0x63000; return system_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, 0x001, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* ROM, 1M */ X_ARM_MMU_SECTION(0x001, 0x001, 0x008, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* 8M */ X_ARM_MMU_SECTION(0x009, 0x009, 0x001, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* IRAM */ X_ARM_MMU_SECTION(0x00A, 0x00A, 0x0F6, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* 246M */ /* 2 GB memory starting at 0x10000000, only map 1.875 GB */ X_ARM_MMU_SECTION(0x100, 0x100, 0x780, ARM_CACHEABLE, ARM_BUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* uncached alias of the same 1.875 GB memory */ X_ARM_MMU_SECTION(0x100, 0x880, 0x780, ARM_UNCACHEABLE, ARM_UNBUFFERABLE, ARM_ACCESS_PERM_RW_RW); /* 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; return 0; } static void setup_uart(void) { /* UART1 TXD */ mxc_iomux_v3_setup_pad(MX6Q_PAD_SD3_DAT6__UART1_TXD); /* UART1 RXD */ mxc_iomux_v3_setup_pad(MX6Q_PAD_SD3_DAT7__UART1_RXD); /* UART2 TXD */ mxc_iomux_v3_setup_pad(MX6Q_PAD_EIM_D26__UART2_TXD); /* UART2 RXD */ mxc_iomux_v3_setup_pad(MX6Q_PAD_EIM_D27__UART2_RXD); } #ifdef CONFIG_I2C_MXC static void setup_i2c(unsigned int module_base) { unsigned int reg; switch (module_base) { case I2C1_BASE_ADDR: /* i2c1 SDA */ mxc_iomux_v3_setup_pad(MX6Q_PAD_CSI0_DAT8__I2C1_SDA); /* i2c1 SCL */ mxc_iomux_v3_setup_pad(MX6Q_PAD_CSI0_DAT9__I2C1_SCL); /* Enable i2c clock */ reg = readl(CCM_BASE_ADDR + CLKCTL_CCGR2); reg |= 0xC0; writel(reg, CCM_BASE_ADDR + CLKCTL_CCGR2); break; case I2C2_BASE_ADDR: /* i2c2 SDA */ mxc_iomux_v3_setup_pad(MX6Q_PAD_KEY_ROW3__I2C2_SDA); /* i2c2 SCL */ mxc_iomux_v3_setup_pad(MX6Q_PAD_KEY_COL3__I2C2_SCL); /* Enable i2c clock */ reg = readl(CCM_BASE_ADDR + CLKCTL_CCGR2); reg |= 0x300; writel(reg, CCM_BASE_ADDR + CLKCTL_CCGR2); break; case I2C3_BASE_ADDR: /* GPIO_5 for I2C3_SCL */ mxc_iomux_v3_setup_pad(MX6Q_PAD_GPIO_5__I2C3_SCL); /* GPIO_16 for I2C3_SDA */ mxc_iomux_v3_setup_pad(MX6Q_PAD_GPIO_16__I2C3_SDA); /* Enable i2c clock */ reg = readl(CCM_BASE_ADDR + CLKCTL_CCGR2); reg |= 0xC00; writel(reg, CCM_BASE_ADDR + CLKCTL_CCGR2); break; default: printf("Invalid I2C base: 0x%x\n", module_base); break; } } #endif #ifdef CONFIG_IMX_ECSPI s32 spi_get_cfg(struct imx_spi_dev_t *dev) { switch (dev->slave.cs) { case 0: /* PMIC */ dev->base = ECSPI1_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 = ECSPI1_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 ECSPI1_BASE_ADDR: /* SCLK */ mxc_iomux_v3_setup_pad(MX6Q_PAD_EIM_D16__ECSPI1_SCLK); /* MISO */ mxc_iomux_v3_setup_pad(MX6Q_PAD_EIM_D17__ECSPI1_MISO); /* MOSI */ mxc_iomux_v3_setup_pad(MX6Q_PAD_EIM_D18__ECSPI1_MOSI); if (dev->ss == 1) mxc_iomux_v3_setup_pad(MX6Q_PAD_EIM_D19__ECSPI1_SS1); break; case ECSPI2_BASE_ADDR: case ECSPI3_BASE_ADDR: /* ecspi2-3 fall through */ break; default: break; } } #endif #define HW_OCOTP_MACn(n) (0x00000620 + (n) * 0x10) #ifdef CONFIG_MXC_FEC #ifdef CONFIG_GET_FEC_MAC_ADDR_FROM_IIM int fec_get_mac_addr(unsigned char *mac) { u32 *ocotp_mac_base = (u32 *) (OCOTP_BASE_ADDR + HW_OCOTP_MACn(0)); int i; for (i = 0; i < 6; ++i, ++ocotp_mac_base) mac[6 - 1 - i] = readl(++ocotp_mac_base); return 0; } #endif #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 usdhc_cfg[2] = { {USDHC3_BASE_ADDR, 1, 1, 1}, {USDHC4_BASE_ADDR, 1, 1, 1}, }; #ifdef CONFIG_DYNAMIC_MMC_DEVNO int get_mmc_env_devno(void) { uint soc_sbmr = readl(SRC_BASE_ADDR + 0x4); /* BOOT_CFG2[3] and BOOT_CFG2[4] */ return (soc_sbmr & 0x00001800) >> 11; } #endif iomux_v3_cfg_t mx6q_usdhc1_pads[] = { MX6Q_PAD_SD1_CLK__USDHC1_CLK, MX6Q_PAD_SD1_CMD__USDHC1_CMD, MX6Q_PAD_SD1_DAT0__USDHC1_DAT0, MX6Q_PAD_SD1_DAT1__USDHC1_DAT1, MX6Q_PAD_SD1_DAT2__USDHC1_DAT2, MX6Q_PAD_SD1_DAT3__USDHC1_DAT3, }; iomux_v3_cfg_t mx6q_usdhc2_pads[] = { MX6Q_PAD_SD2_CLK__USDHC2_CLK, MX6Q_PAD_SD2_CMD__USDHC2_CMD, MX6Q_PAD_SD2_DAT0__USDHC2_DAT0, MX6Q_PAD_SD2_DAT1__USDHC2_DAT1, MX6Q_PAD_SD2_DAT2__USDHC2_DAT2, MX6Q_PAD_SD2_DAT3__USDHC2_DAT3, }; iomux_v3_cfg_t mx6q_usdhc3_pads[] = { MX6Q_PAD_SD3_CLK__USDHC3_CLK, MX6Q_PAD_SD3_CMD__USDHC3_CMD, MX6Q_PAD_SD3_DAT0__USDHC3_DAT0, MX6Q_PAD_SD3_DAT1__USDHC3_DAT1, MX6Q_PAD_SD3_DAT2__USDHC3_DAT2, MX6Q_PAD_SD3_DAT3__USDHC3_DAT3, }; iomux_v3_cfg_t mx6q_usdhc4_pads[] = { MX6Q_PAD_SD4_CLK__USDHC4_CLK, MX6Q_PAD_SD4_CMD__USDHC4_CMD, MX6Q_PAD_SD4_DAT0__USDHC4_DAT0, MX6Q_PAD_SD4_DAT1__USDHC4_DAT1, MX6Q_PAD_SD4_DAT2__USDHC4_DAT2, MX6Q_PAD_SD4_DAT3__USDHC4_DAT3, }; int usdhc_gpio_init(bd_t *bis) { s32 status = 0; u32 index = 0; for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; index++) { switch (index) { case 0: mxc_iomux_v3_setup_multiple_pads(mx6q_usdhc3_pads, sizeof (mx6q_usdhc3_pads) / sizeof(mx6q_usdhc3_pads [0])); break; case 1: mxc_iomux_v3_setup_multiple_pads(mx6q_usdhc4_pads, sizeof (mx6q_usdhc4_pads) / sizeof(mx6q_usdhc4_pads [0])); break; default: printf("Warning: you configured more USDHC controllers" "(%d) then supported by the board (%d)\n", index + 1, CONFIG_SYS_FSL_USDHC_NUM); return status; } status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]); } return status; } int board_mmc_init(bd_t *bis) { if (!usdhc_gpio_init(bis)) return 0; else return -1; } /* For DDR mode operation, provide target delay parameter for each SD port. * Use cfg->esdhc_base to distinguish the SD port #. The delay for each port * is dependent on signal layout for that particular port. If the following * CONFIG is not defined, then the default target delay value will be used. */ #ifdef CONFIG_GET_DDR_TARGET_DELAY u32 get_ddr_delay(struct fsl_esdhc *cfg) { /* No delay required */ return 0; } #endif #endif int board_init(void) { #ifdef CONFIG_MFG /* MFG firmware need reset usb to avoid host crash firstly */ #define USBCMD 0x140 int val = readl(OTG_BASE_ADDR + USBCMD); val &= ~0x1; /*RS bit */ writel(val, OTG_BASE_ADDR + USBCMD); #endif mxc_iomux_v3_init((void *)IOMUXC_BASE_ADDR); setup_boot_device(); /* board id for linux */ gd->bd->bi_arch_number = MACH_TYPE_MX6Q_SABRELITE; /* address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; setup_uart(); #ifdef CONFIG_I2C_MXC setup_i2c(CONFIG_SYS_I2C_PORT); #endif return 0; } int board_late_init(void) { return 0; } iomux_v3_cfg_t enet_pads[] = { MX6Q_PAD_ENET_MDIO__ENET_MDIO, MX6Q_PAD_ENET_MDC__ENET_MDC, MX6Q_PAD_RGMII_TXC__ENET_RGMII_TXC, MX6Q_PAD_RGMII_TD0__ENET_RGMII_TD0, MX6Q_PAD_RGMII_TD1__ENET_RGMII_TD1, MX6Q_PAD_RGMII_TD2__ENET_RGMII_TD2, MX6Q_PAD_RGMII_TD3__ENET_RGMII_TD3, MX6Q_PAD_RGMII_TX_CTL__ENET_RGMII_TX_CTL, /* pin 35 - 1 (PHY_AD2) on reset */ MX6Q_PAD_RGMII_RXC__GPIO_6_30, /* pin 32 - 1 - (MODE0) all */ MX6Q_PAD_RGMII_RD0__GPIO_6_25, /* pin 31 - 1 - (MODE1) all */ MX6Q_PAD_RGMII_RD1__GPIO_6_27, /* pin 28 - 1 - (MODE2) all */ MX6Q_PAD_RGMII_RD2__GPIO_6_28, /* pin 27 - 1 - (MODE3) all */ MX6Q_PAD_RGMII_RD3__GPIO_6_29, /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */ MX6Q_PAD_RGMII_RX_CTL__GPIO_6_24, MX6Q_PAD_GPIO_0__CCM_CLKO, MX6Q_PAD_GPIO_3__CCM_CLKO2, MX6Q_PAD_ENET_REF_CLK__ENET_TX_CLK, }; iomux_v3_cfg_t enet_pads_final[] = { MX6Q_PAD_RGMII_RXC__ENET_RGMII_RXC, MX6Q_PAD_RGMII_RD0__ENET_RGMII_RD0, MX6Q_PAD_RGMII_RD1__ENET_RGMII_RD1, MX6Q_PAD_RGMII_RD2__ENET_RGMII_RD2, MX6Q_PAD_RGMII_RD3__ENET_RGMII_RD3, MX6Q_PAD_RGMII_RX_CTL__ENET_RGMII_RX_CTL, }; static int phy_read(char *devname, unsigned char addr, unsigned char reg, unsigned short *pdata) { int ret = miiphy_read(devname, addr, reg, pdata); if (ret) printf("Error reading from %s PHY addr=%02x reg=%02x\n", devname, addr, reg); return ret; } static int phy_write(char *devname, unsigned char addr, unsigned char reg, unsigned short value) { int ret = miiphy_write(devname, addr, reg, value); if (ret) printf("Error writing to %s PHY addr=%02x reg=%02x\n", devname, addr, reg); return ret; } int mx6_rgmii_rework(char *devname, int phy_addr) { #if 0 /* To advertise only 10 Mbs */ phy_write(devname, phy_addr, 0x4, 0x61); phy_write(devname, phy_addr, 0x9, 0x0c00); #endif /* prefer master mode, 1000 Base-T capable */ phy_write(devname, phy_addr, 0x9, 0x0f00); /* min rx data delay */ phy_write(devname, phy_addr, 0x0b, 0x8105); phy_write(devname, phy_addr, 0x0c, 0x0000); /* max rx/tx clock delay, min rx/tx control delay */ phy_write(devname, phy_addr, 0x0b, 0x8104); phy_write(devname, phy_addr, 0x0c, 0xf0f0); phy_write(devname, phy_addr, 0x0b, 0x104); return 0; } void enet_board_init(void) { iomux_v3_cfg_t enet_reset = (MX6Q_PAD_EIM_D23__GPIO_3_23 & ~MUX_PAD_CTRL_MASK) | MUX_PAD_CTRL(0x48); /* phy reset: gpio3-23 */ set_gpio_output_val(GPIO3_BASE_ADDR, (1 << 23), 0); set_gpio_output_val(GPIO6_BASE_ADDR, (1 << 30), (CONFIG_FEC0_PHY_ADDR >> 2)); set_gpio_output_val(GPIO6_BASE_ADDR, (1 << 25), 1); set_gpio_output_val(GPIO6_BASE_ADDR, (1 << 27), 1); set_gpio_output_val(GPIO6_BASE_ADDR, (1 << 28), 1); set_gpio_output_val(GPIO6_BASE_ADDR, (1 << 29), 1); mxc_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); mxc_iomux_v3_setup_pad(enet_reset); set_gpio_output_val(GPIO6_BASE_ADDR, (1 << 24), 1); udelay(500); set_gpio_output_val(GPIO3_BASE_ADDR, (1 << 23), 1); mxc_iomux_v3_setup_multiple_pads(enet_pads_final, ARRAY_SIZE(enet_pads_final)); } int checkboard(void) { printf("Board: MX6Q-SABRELITE:[ "); 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; }