diff options
Diffstat (limited to 'board/freescale/mx35pdk/mx35pdk.c')
| -rw-r--r-- | board/freescale/mx35pdk/mx35pdk.c | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/board/freescale/mx35pdk/mx35pdk.c b/board/freescale/mx35pdk/mx35pdk.c new file mode 100644 index 0000000..da926e5 --- /dev/null +++ b/board/freescale/mx35pdk/mx35pdk.c @@ -0,0 +1,297 @@ +/* + * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de> + * + * (C) Copyright 2008-2010 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 <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/mx35_pins.h> +#include <asm/arch/iomux.h> +#include <i2c.h> +#include <fsl_pmic.h> +#include <mc9sdz60.h> +#include <mc13892.h> +#include <linux/types.h> +#include <mxc_gpio.h> +#include <asm/arch/sys_proto.h> +#include <netdev.h> + +#ifndef BOARD_LATE_INIT +#error "BOARD_LATE_INIT must be set for this board" +#endif + +#ifndef CONFIG_BOARD_EARLY_INIT_F +#error "CONFIG_BOARD_EARLY_INIT_F must be set for this board" +#endif + +#define mdelay(n) ({unsigned long msec = (n); while (msec--) udelay(1000); }) + +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 setup_iomux_i2c(void) +{ + int pad; + + /* setup pins for I2C1 */ + mxc_request_iomux(MX35_PIN_I2C1_CLK, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_I2C1_DAT, MUX_CONFIG_SION); + + pad = (PAD_CTL_HYS_SCHMITZ | PAD_CTL_PKE_ENABLE \ + | PAD_CTL_PUE_PUD | PAD_CTL_ODE_OpenDrain); + + mxc_iomux_set_pad(MX35_PIN_I2C1_CLK, pad); + mxc_iomux_set_pad(MX35_PIN_I2C1_DAT, pad); +} + + +static void setup_iomux_spi(void) +{ + mxc_request_iomux(MX35_PIN_CSPI1_MOSI, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_CSPI1_MISO, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_CSPI1_SS0, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_CSPI1_SS1, MUX_CONFIG_SION); + mxc_request_iomux(MX35_PIN_CSPI1_SCLK, MUX_CONFIG_SION); +} + +static void setup_iomux_fec(void) +{ + int pad; + + /* 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); + + pad = (PAD_CTL_DRV_3_3V | PAD_CTL_PUE_PUD | PAD_CTL_ODE_CMOS | \ + PAD_CTL_DRV_NORMAL | PAD_CTL_SRE_SLOW); + + mxc_iomux_set_pad(MX35_PIN_FEC_TX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RX_DV, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_COL, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RDATA0, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TDATA0, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TX_EN, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_MDC, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_MDIO, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_22K_PU); + mxc_iomux_set_pad(MX35_PIN_FEC_TX_ERR, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RX_ERR, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_CRS, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RDATA1, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TDATA1, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RDATA2, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TDATA2, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_RDATA3, pad | PAD_CTL_HYS_SCHMITZ | \ + PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX35_PIN_FEC_TDATA3, pad | PAD_CTL_HYS_CMOS | \ + PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); +} + +int board_early_init_f(void) +{ + struct ccm_regs *ccm = + (struct ccm_regs *)IMX_CCM_BASE; + + /* enable clocks */ + writel(readl(&ccm->cgr0) | + MXC_CCM_CGR0_EMI_MASK | + MXC_CCM_CGR0_EDI0_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_IPU_MASK, + &ccm->cgr1); + + /* Setup NAND */ + __raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr); + + setup_iomux_i2c(); + setup_iomux_fec(); + setup_iomux_spi(); + + return 0; +} + +int board_init(void) +{ + gd->bd->bi_arch_number = MACH_TYPE_MX35_3DS; /* board id for linux */ + /* address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + return 0; +} + +static inline int pmic_detect(void) +{ + int id; + + id = pmic_reg_read(REG_IDENTIFICATION); + + id = (id >> 6) & 0x7; + if (id == 0x7) + return 1; + return 0; +} + +u32 get_board_rev(void) +{ + int rev; + + rev = pmic_detect(); + + return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8; +} + +int board_late_init(void) +{ + u8 val; + u32 pmic_val; + + if (pmic_detect()) { + mxc_request_iomux(MX35_PIN_WATCHDOG_RST, MUX_CONFIG_SION | + MUX_CONFIG_ALT1); + + pmic_val = pmic_reg_read(REG_SETTING_0); + pmic_reg_write(REG_SETTING_0, pmic_val | VO_1_30V | VO_1_50V); + pmic_val = pmic_reg_read(REG_MODE_0); + pmic_reg_write(REG_MODE_0, pmic_val | VGEN3EN); + + mxc_request_iomux(MX35_PIN_COMPARE, MUX_CONFIG_GPIO); + mxc_iomux_set_input(MUX_IN_GPIO1_IN_5, INPUT_CTL_PATH0); + + mxc_gpio_direction(37, MXC_GPIO_DIRECTION_OUT); + mxc_gpio_set(37, 1); + } + + val = mc9sdz60_reg_read(MC9SDZ60_REG_GPIO_1) | 0x04; + mc9sdz60_reg_write(MC9SDZ60_REG_GPIO_1, val); + mdelay(200); + + val = mc9sdz60_reg_read(MC9SDZ60_REG_RESET_1) & 0x7F; + mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val); + mdelay(200); + + val |= 0x80; + mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val); + + return 0; +} + +int checkboard(void) +{ + struct ccm_regs *ccm = + (struct ccm_regs *)IMX_CCM_BASE; + u32 cpu_rev = get_cpu_rev(); + + /* + * Be sure that I2C is initialized to check + * the board revision + */ + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + + /* Print board revision */ + printf("Board: MX35 PDK %d.0 ", ((get_board_rev() >> 8) + 1) & 0x0F); + + /* Print CPU revision */ + printf("i.MX35 %d.%d [", (cpu_rev & 0xF0) >> 4, cpu_rev & 0x0F); + + switch (readl(&ccm->rcsr) & 0x0F) { + case 0x0000: + puts("POR"); + break; + case 0x0002: + puts("JTAG"); + break; + case 0x0004: + puts("RST"); + break; + case 0x0008: + puts("WDT"); + break; + default: + puts("unknown"); + } + puts("]\n"); + + return 0; +} + +int board_eth_init(bd_t *bis) +{ + int rc = -ENODEV; +#if defined(CONFIG_SMC911X) + rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); +#endif + + cpu_eth_init(bis); + + return rc; +} |