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-rw-r--r--board/woodburn/woodburn.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/board/woodburn/woodburn.c b/board/woodburn/woodburn.c
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+++ b/board/woodburn/woodburn.c
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+/*
+ * 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 <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;
+
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+ pmic_init();
+ p = get_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;
+}