diff options
Diffstat (limited to 'roms/u-boot/board/freescale/mx51evk/mx51evk.c')
| -rw-r--r-- | roms/u-boot/board/freescale/mx51evk/mx51evk.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/roms/u-boot/board/freescale/mx51evk/mx51evk.c b/roms/u-boot/board/freescale/mx51evk/mx51evk.c new file mode 100644 index 000000000..c8439a634 --- /dev/null +++ b/roms/u-boot/board/freescale/mx51evk/mx51evk.c @@ -0,0 +1,218 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2009 Freescale Semiconductor, Inc. + */ + +#include <common.h> +#include <init.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/gpio.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/iomux-mx51.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/clock.h> +#include <asm/mach-imx/mx5_video.h> +#include <i2c.h> +#include <input.h> +#include <mmc.h> +#include <fsl_esdhc_imx.h> +#include <power/pmic.h> +#include <fsl_pmic.h> +#include <mc13892.h> +#include <usb/ehci-ci.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + /* dram_init must store complete ramsize in gd->ram_size */ + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, + PHYS_SDRAM_1_SIZE); + return 0; +} + +u32 get_board_rev(void) +{ + u32 rev = get_cpu_rev(); + if (!gpio_get_value(IMX_GPIO_NR(1, 22))) + rev |= BOARD_REV_2_0 << BOARD_VER_OFFSET; + return rev; +} + +#define UART_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_DSE_HIGH) + +static void setup_iomux_uart(void) +{ + static const iomux_v3_cfg_t uart_pads[] = { + MX51_PAD_UART1_RXD__UART1_RXD, + MX51_PAD_UART1_TXD__UART1_TXD, + NEW_PAD_CTRL(MX51_PAD_UART1_RTS__UART1_RTS, UART_PAD_CTRL), + NEW_PAD_CTRL(MX51_PAD_UART1_CTS__UART1_CTS, UART_PAD_CTRL), + }; + + imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads)); +} + +#ifdef CONFIG_MXC_SPI +static void setup_iomux_spi(void) +{ + static const iomux_v3_cfg_t spi_pads[] = { + NEW_PAD_CTRL(MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI, PAD_CTL_HYS | + PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST), + NEW_PAD_CTRL(MX51_PAD_CSPI1_MISO__ECSPI1_MISO, PAD_CTL_HYS | + PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST), + NEW_PAD_CTRL(MX51_PAD_CSPI1_SS1__ECSPI1_SS1, + MX51_GPIO_PAD_CTRL), + MX51_PAD_CSPI1_SS0__ECSPI1_SS0, + NEW_PAD_CTRL(MX51_PAD_CSPI1_RDY__ECSPI1_RDY, MX51_PAD_CTRL_2), + NEW_PAD_CTRL(MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, PAD_CTL_HYS | + PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST), + }; + + imx_iomux_v3_setup_multiple_pads(spi_pads, ARRAY_SIZE(spi_pads)); +} +#endif + +static void power_init(void) +{ + unsigned int val; + struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)MXC_CCM_BASE; + struct pmic *p; + int ret; + + ret = pmic_init(CONFIG_FSL_PMIC_BUS); + if (ret) + return; + + p = pmic_get("FSL_PMIC"); + if (!p) + return; + + /* Write needed to Power Gate 2 register */ + pmic_reg_read(p, REG_POWER_MISC, &val); + val &= ~PWGT2SPIEN; + pmic_reg_write(p, REG_POWER_MISC, val); + + /* Externally powered */ + pmic_reg_read(p, REG_CHARGE, &val); + val |= ICHRG0 | ICHRG1 | ICHRG2 | ICHRG3 | CHGAUTOB; + pmic_reg_write(p, REG_CHARGE, val); + + /* power up the system first */ + pmic_reg_write(p, REG_POWER_MISC, PWUP); + + /* Set core voltage to 1.1V */ + pmic_reg_read(p, REG_SW_0, &val); + val = (val & ~SWx_VOLT_MASK) | SWx_1_100V; + pmic_reg_write(p, REG_SW_0, val); + + /* Setup VCC (SW2) to 1.25 */ + pmic_reg_read(p, REG_SW_1, &val); + val = (val & ~SWx_VOLT_MASK) | SWx_1_250V; + pmic_reg_write(p, REG_SW_1, val); + + /* Setup 1V2_DIG1 (SW3) to 1.25 */ + pmic_reg_read(p, REG_SW_2, &val); + val = (val & ~SWx_VOLT_MASK) | SWx_1_250V; + pmic_reg_write(p, REG_SW_2, val); + udelay(50); + + /* Raise the core frequency to 800MHz */ + writel(0x0, &mxc_ccm->cacrr); + + /* 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); + pmic_reg_write(p, REG_SW_4, val); + + /* Setup the switcher mode for SW3 & SW4 */ + pmic_reg_read(p, REG_SW_5, &val); + val = (val & ~((SWMODE_MASK << SWMODE3_SHIFT) | + (SWMODE_MASK << SWMODE4_SHIFT))); + val |= (SWMODE_AUTO_AUTO << SWMODE3_SHIFT) | + (SWMODE_AUTO_AUTO << SWMODE4_SHIFT); + pmic_reg_write(p, REG_SW_5, val); + + /* Set VDIG to 1.65V, VGEN3 to 1.8V, VCAM to 2.6V */ + pmic_reg_read(p, REG_SETTING_0, &val); + val &= ~(VCAM_MASK | VGEN3_MASK | VDIG_MASK); + val |= VDIG_1_65 | VGEN3_1_8 | VCAM_2_6; + pmic_reg_write(p, REG_SETTING_0, val); + + /* Set VVIDEO to 2.775V, VAUDIO to 3V, VSD to 3.15V */ + pmic_reg_read(p, REG_SETTING_1, &val); + val &= ~(VVIDEO_MASK | VSD_MASK | VAUDIO_MASK); + val |= VSD_3_15 | VAUDIO_3_0 | VVIDEO_2_775; + pmic_reg_write(p, REG_SETTING_1, val); + + /* Configure VGEN3 and VCAM regulators to use external PNP */ + val = VGEN3CONFIG | VCAMCONFIG; + pmic_reg_write(p, REG_MODE_1, val); + udelay(200); + + /* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */ + val = VGEN3EN | VGEN3CONFIG | VCAMEN | VCAMCONFIG | + VVIDEOEN | VAUDIOEN | VSDEN; + pmic_reg_write(p, REG_MODE_1, val); + + imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_EIM_A20__GPIO2_14, + NO_PAD_CTRL)); + gpio_request(IMX_GPIO_NR(2, 14), "gpio2_14"); + gpio_direction_output(IMX_GPIO_NR(2, 14), 0); + + udelay(500); + + gpio_set_value(IMX_GPIO_NR(2, 14), 1); +} + +int board_early_init_f(void) +{ + setup_iomux_uart(); + setup_iomux_lcd(); + + return 0; +} + +int board_init(void) +{ + /* address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + return 0; +} + +#ifdef CONFIG_BOARD_LATE_INIT +int board_late_init(void) +{ +#ifdef CONFIG_MXC_SPI + setup_iomux_spi(); + power_init(); +#endif + + return 0; +} +#endif + +/* + * Do not overwrite the console + * Use always serial for U-Boot console + */ +int overwrite_console(void) +{ + return 1; +} + +int checkboard(void) +{ + puts("Board: MX51EVK\n"); + + return 0; +} |