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Diffstat (limited to 'board/woodburn/woodburn.c')
| -rw-r--r-- | board/woodburn/woodburn.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/board/woodburn/woodburn.c b/board/woodburn/woodburn.c new file mode 100644 index 0000000..66a0d35 --- /dev/null +++ b/board/woodburn/woodburn.c @@ -0,0 +1,265 @@ +/* + * Copyright (C) 2012, Stefano Babic <sbabic@denx.de> + * + * Based on flea3.c and mx35pdk.c + * + * 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 <common.h> +#include <asm/io.h> +#include <asm/errno.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/clock.h> +#include <asm/arch/mx35_pins.h> +#include <asm/arch/iomux.h> +#include <i2c.h> +#include <power/pmic.h> +#include <fsl_pmic.h> +#include <mc13892.h> +#include <mmc.h> +#include <fsl_esdhc.h> +#include <linux/types.h> +#include <asm/gpio.h> +#include <asm/arch/sys_proto.h> +#include <netdev.h> +#include <spl.h> + +#define CCM_CCMR_CONFIG 0x003F4208 + +#define ESDCTL_DDR2_CONFIG 0x007FFC3F + +/* For MMC */ +#define GPIO_MMC_CD 7 +#define GPIO_MMC_WP 8 + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, + PHYS_SDRAM_1_SIZE); + + return 0; +} + +static void board_setup_sdram(void) +{ + struct esdc_regs *esdc = (struct esdc_regs *)ESDCTL_BASE_ADDR; + + /* Initialize with default values both CSD0/1 */ + writel(0x2000, &esdc->esdctl0); + writel(0x2000, &esdc->esdctl1); + + mx3_setup_sdram_bank(CSD0_BASE_ADDR, ESDCTL_DDR2_CONFIG, + 13, 10, 2, 0x8080); +} + +static void setup_iomux_fec(void) +{ + /* setup pins for FEC */ + mxc_request_iomux(MX35_PIN_FEC_TX_CLK, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RX_CLK, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RX_DV, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_COL, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RDATA0, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TDATA0, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TX_EN, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_MDC, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_MDIO, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TX_ERR, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RX_ERR, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_CRS, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RDATA1, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TDATA1, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RDATA2, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TDATA2, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_RDATA3, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_FEC_TDATA3, MUX_CONFIG_FUNC); +} + +int woodburn_init(void) +{ + struct ccm_regs *ccm = + (struct ccm_regs *)IMX_CCM_BASE; + + /* initialize PLL and clock configuration */ + writel(CCM_CCMR_CONFIG, &ccm->ccmr); + + /* Set-up RAM */ + board_setup_sdram(); + + /* enable clocks */ + writel(readl(&ccm->cgr0) | + MXC_CCM_CGR0_EMI_MASK | + MXC_CCM_CGR0_EDIO_MASK | + MXC_CCM_CGR0_EPIT1_MASK, + &ccm->cgr0); + + writel(readl(&ccm->cgr1) | + MXC_CCM_CGR1_FEC_MASK | + MXC_CCM_CGR1_GPIO1_MASK | + MXC_CCM_CGR1_GPIO2_MASK | + MXC_CCM_CGR1_GPIO3_MASK | + MXC_CCM_CGR1_I2C1_MASK | + MXC_CCM_CGR1_I2C2_MASK | + MXC_CCM_CGR1_I2C3_MASK, + &ccm->cgr1); + + /* Set-up NAND */ + __raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr); + + /* Set pinmux for the required peripherals */ + setup_iomux_fec(); + + /* setup GPIO1_4 FEC_ENABLE signal */ + mxc_request_iomux(MX35_PIN_SCKR, MUX_CONFIG_ALT5); + gpio_direction_output(4, 1); + mxc_request_iomux(MX35_PIN_HCKT, MUX_CONFIG_ALT5); + gpio_direction_output(9, 0); + gpio_set_value(9, 1); + + return 0; +} + +#if defined(CONFIG_SPL_BUILD) +void board_init_f(ulong dummy) +{ + /* Set the stack pointer. */ + asm volatile("mov sp, %0\n" : : "r"(CONFIG_SPL_STACK)); + + /* Initialize MUX and SDRAM */ + woodburn_init(); + + /* Clear the BSS. */ + memset(__bss_start, 0, __bss_end__ - __bss_start); + + /* Set global data pointer. */ + gd = &gdata; + + preloader_console_init(); + timer_init(); + + board_init_r(NULL, 0); +} + +void spl_board_init(void) +{ +} + +#endif + + +/* Booting from NOR in external mode */ +int board_early_init_f(void) +{ + return woodburn_init(); +} + + +int board_init(void) +{ + struct pmic *p; + u32 val; + int ret; + + /* address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + ret = pmic_init(I2C_PMIC); + if (ret) + return ret; + + p = pmic_get("FSL_PMIC"); + + /* + * Set switchers in Auto in NORMAL mode & STANDBY mode + * Setup the switcher mode for SW1 & SW2 + */ + pmic_reg_read(p, REG_SW_4, &val); + val = (val & ~((SWMODE_MASK << SWMODE1_SHIFT) | + (SWMODE_MASK << SWMODE2_SHIFT))); + val |= (SWMODE_AUTO_AUTO << SWMODE1_SHIFT) | + (SWMODE_AUTO_AUTO << SWMODE2_SHIFT); + /* Set SWILIMB */ + val |= (1 << 22); + pmic_reg_write(p, REG_SW_4, val); + + /* Setup the switcher mode for SW3 & SW4 */ + pmic_reg_read(p, REG_SW_5, &val); + val &= ~((SWMODE_MASK << SWMODE4_SHIFT) | + (SWMODE_MASK << SWMODE3_SHIFT)); + val |= (SWMODE_AUTO_AUTO << SWMODE4_SHIFT) | + (SWMODE_AUTO_AUTO << SWMODE3_SHIFT); + pmic_reg_write(p, REG_SW_5, val); + + /* Set VGEN1 to 3.15V */ + pmic_reg_read(p, REG_SETTING_0, &val); + val &= ~(VGEN1_MASK); + val |= VGEN1_3_15; + pmic_reg_write(p, REG_SETTING_0, val); + + pmic_reg_read(p, REG_MODE_0, &val); + val |= VGEN1EN; + pmic_reg_write(p, REG_MODE_0, val); + udelay(2000); + + return 0; +} + +#if defined(CONFIG_FSL_ESDHC) +struct fsl_esdhc_cfg esdhc_cfg = {MMC_SDHC1_BASE_ADDR}; + +int board_mmc_init(bd_t *bis) +{ + /* configure pins for SDHC1 only */ + mxc_request_iomux(MX35_PIN_SD1_CMD, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_SD1_CLK, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_SD1_DATA0, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_SD1_DATA1, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_SD1_DATA2, MUX_CONFIG_FUNC); + mxc_request_iomux(MX35_PIN_SD1_DATA3, MUX_CONFIG_FUNC); + + /* MMC Card Detect on GPIO1_7 */ + mxc_request_iomux(MX35_PIN_SCKT, MUX_CONFIG_ALT5); + mxc_iomux_set_input(MUX_IN_GPIO1_IN_7, 0x1); + gpio_direction_input(GPIO_MMC_CD); + + mxc_request_iomux(MX35_PIN_FST, MUX_CONFIG_ALT5); + mxc_iomux_set_input(MUX_IN_GPIO1_IN_8, 0x1); + gpio_direction_output(GPIO_MMC_WP, 0); + + esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK); + + return fsl_esdhc_initialize(bis, &esdhc_cfg); +} + +int board_mmc_getcd(struct mmc *mmc) +{ + return !gpio_get_value(GPIO_MMC_CD); +} +#endif + +u32 get_board_rev(void) +{ + int rev = 0; + + return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8; +} |