mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
3240d011ae
The function wrongly will return the card detection status of the SD card (USDHC2) for the eMMC (USDHC1). Thus booting from eMMC without an inserted SD card will fail. Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
298 lines
6.9 KiB
C
298 lines
6.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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#include <common.h>
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#include <errno.h>
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#include <fsl_esdhc_imx.h>
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#include <hang.h>
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#include <init.h>
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#include <log.h>
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#include <spl.h>
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#include <asm/arch/ddr.h>
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#include <asm/arch/imx8mq_pins.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/clock.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include <asm/mach-imx/iomux-v3.h>
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#include <asm/mach-imx/gpio.h>
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#include <asm/mach-imx/mxc_i2c.h>
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#include <linux/delay.h>
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#include <power/pmic.h>
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#include <power/pfuze100_pmic.h>
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#include "pitx_misc.h"
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extern struct dram_timing_info dram_timing_2gb;
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extern struct dram_timing_info dram_timing_4gb;
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DECLARE_GLOBAL_DATA_PTR;
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static void spl_dram_init(void)
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{
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struct dram_timing_info *dram_timing;
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int variant = 0, size;
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variant = get_pitx_board_variant();
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switch(variant) {
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case 2:
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dram_timing = &dram_timing_2gb;
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size = 2;
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break;
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case 3:
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dram_timing = &dram_timing_4gb;
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size = 4;
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break;
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default:
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printf("Unknown DDR type (%d)\n", variant);
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return;
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};
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/* ddr init */
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ddr_init(dram_timing);
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}
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#define I2C_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE)
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#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
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static struct i2c_pads_info i2c_pad_info1 = {
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.scl = {
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.i2c_mode = IMX8MQ_PAD_I2C1_SCL__I2C1_SCL | PC,
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.gpio_mode = IMX8MQ_PAD_I2C1_SCL__GPIO5_IO14 | PC,
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.gp = IMX_GPIO_NR(5, 14),
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},
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.sda = {
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.i2c_mode = IMX8MQ_PAD_I2C1_SDA__I2C1_SDA | PC,
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.gpio_mode = IMX8MQ_PAD_I2C1_SDA__GPIO5_IO15 | PC,
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.gp = IMX_GPIO_NR(5, 15),
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},
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};
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#if CONFIG_IS_ENABLED(MMC)
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#define USDHC2_CD_GPIO IMX_GPIO_NR(2, 12)
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#define USDHC1_PWR_GPIO IMX_GPIO_NR(2, 10)
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#define USDHC2_PWR_GPIO IMX_GPIO_NR(2, 19)
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int board_mmc_getcd(struct mmc *mmc)
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{
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struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
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switch (cfg->esdhc_base) {
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case USDHC1_BASE_ADDR:
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/* the eMMC does not have a CD pin */
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return 1;
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case USDHC2_BASE_ADDR:
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return !gpio_get_value(USDHC2_CD_GPIO);
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}
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return 0;
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}
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#define USDHC_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | \
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PAD_CTL_FSEL2)
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#define USDHC_GPIO_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_DSE1)
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static iomux_v3_cfg_t const usdhc1_pads[] = {
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IMX8MQ_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_DATA4__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_DATA5__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_DATA6__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_DATA7__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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IMX8MQ_PAD_SD1_RESET_B__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static iomux_v3_cfg_t const usdhc2_pads[] = {
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IMX8MQ_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
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IMX8MQ_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
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IMX8MQ_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
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IMX8MQ_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
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IMX8MQ_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0x16 */
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IMX8MQ_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
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IMX8MQ_PAD_SD2_CD_B__GPIO2_IO12 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL),
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IMX8MQ_PAD_SD2_RESET_B__GPIO2_IO19 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL),
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};
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static struct fsl_esdhc_cfg usdhc_cfg[2] = {
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{USDHC1_BASE_ADDR, 0, 8},
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{USDHC2_BASE_ADDR, 0, 4},
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};
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int board_mmc_init(struct bd_info *bis)
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{
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int i, ret;
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/*
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* According to the board_mmc_init() the following map is done:
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* (U-Boot device node) (Physical Port)
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* mmc0 USDHC1
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* mmc1 USDHC2
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*/
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for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
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switch (i) {
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case 0:
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init_clk_usdhc(0);
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(USDHC1_CLK_ROOT);
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imx_iomux_v3_setup_multiple_pads(usdhc1_pads,
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ARRAY_SIZE(usdhc1_pads));
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gpio_request(USDHC1_PWR_GPIO, "usdhc1_reset");
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gpio_direction_output(USDHC1_PWR_GPIO, 0);
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udelay(500);
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gpio_direction_output(USDHC1_PWR_GPIO, 1);
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break;
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case 1:
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init_clk_usdhc(1);
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usdhc_cfg[1].sdhc_clk = mxc_get_clock(USDHC2_CLK_ROOT);
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imx_iomux_v3_setup_multiple_pads(usdhc2_pads,
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ARRAY_SIZE(usdhc2_pads));
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gpio_request(USDHC2_PWR_GPIO, "usdhc2_reset");
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gpio_direction_output(USDHC2_PWR_GPIO, 0);
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udelay(500);
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gpio_direction_output(USDHC2_PWR_GPIO, 1);
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break;
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default:
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printf("Warning: you configured more USDHC controllers "
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"(%d) than supported by the board\n", i + 1);
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return -EINVAL;
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}
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ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
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if (ret)
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return ret;
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}
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return 0;
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}
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const char *spl_board_loader_name(u32 boot_device)
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{
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switch (boot_device) {
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case BOOT_DEVICE_MMC1:
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return "eMMC";
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case BOOT_DEVICE_MMC2:
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return "SD card";
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default:
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return NULL;
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}
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}
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#endif
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#if CONFIG_IS_ENABLED(POWER_LEGACY)
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#define I2C_PMIC 0
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static int pfuze_mode_init(struct pmic *p, u32 mode)
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{
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unsigned char offset, i, switch_num;
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u32 id;
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int ret;
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pmic_reg_read(p, PFUZE100_DEVICEID, &id);
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id = id & 0xf;
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if (id == 0) {
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switch_num = 6;
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offset = PFUZE100_SW1CMODE;
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} else if (id == 1) {
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switch_num = 4;
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offset = PFUZE100_SW2MODE;
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} else {
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printf("Not supported, id=%d\n", id);
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return -EINVAL;
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}
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ret = pmic_reg_write(p, PFUZE100_SW1ABMODE, mode);
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if (ret < 0) {
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printf("Set SW1AB mode error!\n");
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return ret;
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}
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for (i = 0; i < switch_num - 1; i++) {
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ret = pmic_reg_write(p, offset + i * SWITCH_SIZE, mode);
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if (ret < 0) {
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printf("Set switch 0x%x mode error!\n",
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offset + i * SWITCH_SIZE);
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return ret;
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}
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}
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return ret;
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}
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int power_init_board(void)
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{
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struct pmic *p;
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int ret;
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unsigned int reg;
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ret = power_pfuze100_init(I2C_PMIC);
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if (ret)
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return -ENODEV;
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p = pmic_get("PFUZE100");
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ret = pmic_probe(p);
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if (ret)
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return -ENODEV;
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pmic_reg_read(p, PFUZE100_SW3AVOL, ®);
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if ((reg & 0x3f) != 0x18) {
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reg &= ~0x3f;
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reg |= 0x18;
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pmic_reg_write(p, PFUZE100_SW3AVOL, reg);
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}
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ret = pfuze_mode_init(p, APS_PFM);
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if (ret < 0)
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return ret;
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/* set SW3A standby mode to off */
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pmic_reg_read(p, PFUZE100_SW3AMODE, ®);
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reg &= ~0xf;
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reg |= APS_OFF;
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pmic_reg_write(p, PFUZE100_SW3AMODE, reg);
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return 0;
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}
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#endif
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void board_init_f(ulong dummy)
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{
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int ret;
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/* Clear global data */
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memset((void *)gd, 0, sizeof(gd_t));
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arch_cpu_init();
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init_uart_clk(2);
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board_early_init_f();
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timer_init();
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preloader_console_init();
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/* Clear the BSS. */
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memset(__bss_start, 0, __bss_end - __bss_start);
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ret = spl_init();
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if (ret) {
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debug("spl_init() failed: %d\n", ret);
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hang();
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}
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enable_tzc380();
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setup_i2c(0, 100000, 0x7f, &i2c_pad_info1);
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#if CONFIG_IS_ENABLED(POWER_LEGACY)
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power_init_board();
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#endif
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spl_dram_init();
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board_init_r(NULL, 0);
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}
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