diff options
Diffstat (limited to 'board/k+p/kp_imx53/kp_imx53.c')
| -rw-r--r-- | board/k+p/kp_imx53/kp_imx53.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/board/k+p/kp_imx53/kp_imx53.c b/board/k+p/kp_imx53/kp_imx53.c new file mode 100644 index 0000000000..7d2731208f --- /dev/null +++ b/board/k+p/kp_imx53/kp_imx53.c @@ -0,0 +1,212 @@ +/* + * Copyright (C) 2018 + * Lukasz Majewski, DENX Software Engineering, lukma@denx.de + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/clock.h> +#include <asm/arch/iomux-mx53.h> +#include <asm/arch/clock.h> +#include <asm/gpio.h> +#include <mmc.h> +#include <fsl_esdhc.h> +#include <power/pmic.h> +#include <fsl_pmic.h> +#include "kp_id_rev.h" + +#define VBUS_PWR_EN IMX_GPIO_NR(7, 8) +#define PHY_nRST IMX_GPIO_NR(7, 6) +#define BOOSTER_OFF IMX_GPIO_NR(2, 23) + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + u32 size; + + size = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE); + gd->ram_size = size; + + return 0; +} + +int dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; + + return 0; +} + +u32 get_board_rev(void) +{ + struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE; + struct fuse_bank *bank = &iim->bank[0]; + struct fuse_bank0_regs *fuse = + (struct fuse_bank0_regs *)bank->fuse_regs; + + int rev = readl(&fuse->gp[6]); + + return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8; +} + +#ifdef CONFIG_USB_EHCI_MX5 +int board_ehci_hcd_init(int port) +{ + gpio_request(VBUS_PWR_EN, "VBUS_PWR_EN"); + gpio_direction_output(VBUS_PWR_EN, 1); + return 0; +} +#endif + +#ifdef CONFIG_FSL_ESDHC +struct fsl_esdhc_cfg esdhc_cfg[] = { + {MMC_SDHC3_BASE_ADDR}, +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + return 1; /* eMMC is always present */ +} + +#define SD_CMD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \ + PAD_CTL_PUS_100K_UP) +#define SD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \ + PAD_CTL_DSE_HIGH) + +int board_mmc_init(bd_t *bis) +{ + int ret; + + static const iomux_v3_cfg_t sd3_pads[] = { + NEW_PAD_CTRL(MX53_PAD_PATA_RESET_B__ESDHC3_CMD, + SD_CMD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_PATA_IORDY__ESDHC3_CLK, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA8__ESDHC3_DAT0, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA9__ESDHC3_DAT1, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA10__ESDHC3_DAT2, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA11__ESDHC3_DAT3, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__ESDHC3_DAT4, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__ESDHC3_DAT5, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__ESDHC3_DAT6, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__ESDHC3_DAT7, SD_PAD_CTRL), + }; + + esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + imx_iomux_v3_setup_multiple_pads(sd3_pads, ARRAY_SIZE(sd3_pads)); + + ret = fsl_esdhc_initialize(bis, &esdhc_cfg[0]); + if (ret) + return ret; + + return 0; +} +#endif + +static int power_init(void) +{ + struct udevice *dev; + int ret; + + ret = pmic_get("mc34708", &dev); + if (ret) { + printf("%s: mc34708 not found !\n", __func__); + return ret; + } + + /* Set VDDGP to 1.110V for 800 MHz on SW1 */ + pmic_clrsetbits(dev, REG_SW_0, SWx_VOLT_MASK_MC34708, + SWx_1_110V_MC34708); + + /* Set VCC as 1.30V on SW2 */ + pmic_clrsetbits(dev, REG_SW_1, SWx_VOLT_MASK_MC34708, + SWx_1_300V_MC34708); + + /* Set global reset timer to 4s */ + pmic_clrsetbits(dev, REG_POWER_CTL2, TIMER_MASK_MC34708, + TIMER_4S_MC34708); + + return ret; +} + +static void setup_clocks(void) +{ + int ret; + u32 ref_clk = MXC_HCLK; + /* + * CPU clock set to 800MHz and DDR to 400MHz + */ + ret = mxc_set_clock(ref_clk, 800, MXC_ARM_CLK); + if (ret) + printf("CPU: Switch CPU clock to 800MHZ failed\n"); + + ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK); + ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK); + if (ret) + printf("CPU: Switch DDR clock to 400MHz failed\n"); +} + +static void setup_ups(void) +{ + gpio_request(BOOSTER_OFF, "BOOSTER_OFF"); + gpio_direction_output(BOOSTER_OFF, 0); +} + +int board_early_init_f(void) +{ + return 0; +} + +/* + * Do not overwrite the console + * Use always serial for U-Boot console + */ +int overwrite_console(void) +{ + return 1; +} + +int board_init(void) +{ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + return 0; +} + +void eth_phy_reset(void) +{ + gpio_request(PHY_nRST, "PHY_nRST"); + gpio_direction_output(PHY_nRST, 1); + udelay(50); + gpio_set_value(PHY_nRST, 0); + udelay(400); + gpio_set_value(PHY_nRST, 1); + udelay(50); +} + +int board_late_init(void) +{ + int ret = 0; + + setup_ups(); + + if (!power_init()) + setup_clocks(); + + ret = read_eeprom(); + if (ret) + printf("Error %d reading EEPROM content!\n", ret); + + eth_phy_reset(); + + show_eeprom(); + read_board_id(); + + return ret; +} |