--- /dev/null
+/*
+ * Copyright (C) 2016 samtec automotive software & electronics gmbh
+ *
+ * Author: Christoph Fritz <chf.fritz@googlemail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/io.h>
+#include <asm/imx-common/mxc_i2c.h>
+#include <linux/sizes.h>
+#include <common.h>
+#include <fsl_esdhc.h>
+#include <mmc.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <power/pmic.h>
+#include <power/pfuze100_pmic.h>
+#include <usb.h>
+#include <usb/ehci-ci.h>
+#include <pwm.h>
+#include <wait_bit.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
+ PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
+ PAD_CTL_SRE_FAST)
+
+#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PKE | \
+ PAD_CTL_SPEED_HIGH | PAD_CTL_DSE_48ohm | \
+ PAD_CTL_SRE_FAST)
+
+#define ENET_CLK_PAD_CTRL PAD_CTL_DSE_34ohm
+
+#define ENET_RX_PAD_CTRL (PAD_CTL_PKE | \
+ PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_HIGH | \
+ PAD_CTL_SRE_FAST)
+
+#define I2C_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
+ PAD_CTL_PKE | PAD_CTL_ODE | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm)
+
+#define USDHC_CLK_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST)
+
+#define USDHC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
+ PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_80ohm | \
+ PAD_CTL_SRE_FAST)
+
+#define GPIO_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
+ PAD_CTL_PKE)
+
+int dram_init(void)
+{
+ gd->ram_size = imx_ddr_size();
+
+ return 0;
+}
+
+static iomux_v3_cfg_t const uart1_pads[] = {
+ MX6_PAD_GPIO1_IO04__UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
+ MX6_PAD_GPIO1_IO05__UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usdhc2_pads[] = {
+ MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_CLK_PAD_CTRL),
+ MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_LCD1_VSYNC__GPIO3_IO_28 | MUX_PAD_CTRL(GPIO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usdhc4_pads[] = {
+ MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_CLK_PAD_CTRL),
+ MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DATA4__USDHC4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DATA5__USDHC4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DATA6__USDHC4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DATA7__USDHC4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const fec1_pads[] = {
+ MX6_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET1_MDIO__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII1_RD0__ENET1_RX_DATA_0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
+ MX6_PAD_RGMII1_RD1__ENET1_RX_DATA_1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
+ MX6_PAD_RGMII1_TD0__ENET1_TX_DATA_0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII1_TD1__ENET1_TX_DATA_1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII1_RX_CTL__ENET1_RX_EN | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
+ MX6_PAD_RGMII1_TX_CTL__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL) |
+ MUX_MODE_SION,
+ /* LAN8720 PHY Reset */
+ MX6_PAD_RGMII1_TD3__GPIO5_IO_9 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const pwm_led_pads[] = {
+ MX6_PAD_RGMII2_RD2__PWM2_OUT | MUX_PAD_CTRL(NO_PAD_CTRL), /* green */
+ MX6_PAD_RGMII2_TD2__PWM6_OUT | MUX_PAD_CTRL(NO_PAD_CTRL), /* red */
+ MX6_PAD_RGMII2_RD3__PWM1_OUT | MUX_PAD_CTRL(NO_PAD_CTRL), /* blue */
+};
+
+static void setup_iomux_uart(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+}
+
+#define PHY_RESET IMX_GPIO_NR(5, 9)
+
+int board_eth_init(bd_t *bis)
+{
+ struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
+ int ret;
+ unsigned char eth1addr[6];
+
+ /* just to get secound mac address */
+ imx_get_mac_from_fuse(1, eth1addr);
+ if (!getenv("eth1addr") && is_valid_ethaddr(eth1addr))
+ eth_setenv_enetaddr("eth1addr", eth1addr);
+
+ imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
+
+ /*
+ * Generate phy reference clock via pin IOMUX ENET_REF_CLK1/2 by erasing
+ * ENET1/2_TX_CLK_DIR gpr1[14:13], so that reference clock is driven by
+ * ref_enetpll0/1 and enable ENET1/2_TX_CLK output driver.
+ */
+ clrsetbits_le32(&iomuxc_regs->gpr[1],
+ IOMUX_GPR1_FEC1_CLOCK_MUX2_SEL_MASK |
+ IOMUX_GPR1_FEC2_CLOCK_MUX2_SEL_MASK,
+ IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK |
+ IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
+
+ ret = enable_fec_anatop_clock(0, ENET_50MHZ);
+ if (ret)
+ goto eth_fail;
+
+ /* reset phy */
+ gpio_direction_output(PHY_RESET, 0);
+ mdelay(16);
+ gpio_set_value(PHY_RESET, 1);
+ mdelay(1);
+
+ ret = fecmxc_initialize_multi(bis, 0, CONFIG_FEC_MXC_PHYADDR,
+ IMX_FEC_BASE);
+ if (ret)
+ goto eth_fail;
+
+ return ret;
+
+eth_fail:
+ printf("FEC MXC: %s:failed (%i)\n", __func__, ret);
+ gpio_set_value(PHY_RESET, 0);
+ return ret;
+}
+
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+/* I2C1 for PMIC */
+static struct i2c_pads_info i2c_pad_info1 = {
+ .scl = {
+ .i2c_mode = MX6_PAD_GPIO1_IO00__I2C1_SCL | PC,
+ .gpio_mode = MX6_PAD_GPIO1_IO00__GPIO1_IO_0 | PC,
+ .gp = IMX_GPIO_NR(1, 0),
+ },
+ .sda = {
+ .i2c_mode = MX6_PAD_GPIO1_IO01__I2C1_SDA | PC,
+ .gpio_mode = MX6_PAD_GPIO1_IO01__GPIO1_IO_1 | PC,
+ .gp = IMX_GPIO_NR(1, 1),
+ },
+};
+
+static struct pmic *pfuze_init(unsigned char i2cbus)
+{
+ struct pmic *p;
+ int ret;
+ u32 reg;
+
+ ret = power_pfuze100_init(i2cbus);
+ if (ret)
+ return NULL;
+
+ p = pmic_get("PFUZE100");
+ ret = pmic_probe(p);
+ if (ret)
+ return NULL;
+
+ pmic_reg_read(p, PFUZE100_DEVICEID, ®);
+ printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
+
+ /* Set SW1AB stanby volage to 0.975V */
+ pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®);
+ reg &= ~SW1x_STBY_MASK;
+ reg |= SW1x_0_975V;
+ pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
+
+ /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
+ pmic_reg_read(p, PFUZE100_SW1ABCONF, ®);
+ reg &= ~SW1xCONF_DVSSPEED_MASK;
+ reg |= SW1xCONF_DVSSPEED_4US;
+ pmic_reg_write(p, PFUZE100_SW1ABCONF, reg);
+
+ /* Set SW1C standby voltage to 0.975V */
+ pmic_reg_read(p, PFUZE100_SW1CSTBY, ®);
+ reg &= ~SW1x_STBY_MASK;
+ reg |= SW1x_0_975V;
+ pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
+
+ /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
+ pmic_reg_read(p, PFUZE100_SW1CCONF, ®);
+ reg &= ~SW1xCONF_DVSSPEED_MASK;
+ reg |= SW1xCONF_DVSSPEED_4US;
+ pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
+
+ return p;
+}
+
+static int pfuze_mode_init(struct pmic *p, u32 mode)
+{
+ unsigned char offset, i, switch_num;
+ u32 id;
+ int ret;
+
+ pmic_reg_read(p, PFUZE100_DEVICEID, &id);
+ id = id & 0xf;
+
+ if (id == 0) {
+ switch_num = 6;
+ offset = PFUZE100_SW1CMODE;
+ } else if (id == 1) {
+ switch_num = 4;
+ offset = PFUZE100_SW2MODE;
+ } else {
+ printf("Not supported, id=%d\n", id);
+ return -EINVAL;
+ }
+
+ ret = pmic_reg_write(p, PFUZE100_SW1ABMODE, mode);
+ if (ret < 0) {
+ printf("Set SW1AB mode error!\n");
+ return ret;
+ }
+
+ for (i = 0; i < switch_num - 1; i++) {
+ ret = pmic_reg_write(p, offset + i * SWITCH_SIZE, mode);
+ if (ret < 0) {
+ printf("Set switch 0x%x mode error!\n",
+ offset + i * SWITCH_SIZE);
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+int power_init_board(void)
+{
+ struct pmic *p;
+ int ret;
+
+ p = pfuze_init(I2C_PMIC);
+ if (!p)
+ return -ENODEV;
+
+ ret = pfuze_mode_init(p, APS_PFM);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+#ifdef CONFIG_USB_EHCI_MX6
+static iomux_v3_cfg_t const usb_otg_pads[] = {
+ /* OGT1 */
+ MX6_PAD_GPIO1_IO09__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
+ MX6_PAD_GPIO1_IO10__ANATOP_OTG1_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* OTG2 */
+ MX6_PAD_GPIO1_IO12__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL)
+};
+
+static void setup_iomux_usb(void)
+{
+ imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
+ ARRAY_SIZE(usb_otg_pads));
+}
+
+int board_usb_phy_mode(int port)
+{
+ if (port == 1)
+ return USB_INIT_HOST;
+ else
+ return usb_phy_mode(port);
+}
+#endif
+
+#ifdef CONFIG_PWM_IMX
+static int set_pwm_leds(void)
+{
+ int ret;
+
+ imx_iomux_v3_setup_multiple_pads(pwm_led_pads,
+ ARRAY_SIZE(pwm_led_pads));
+ /* enable backlight PWM 2, green LED */
+ ret = pwm_init(1, 0, 0);
+ if (ret)
+ goto error;
+ /* duty cycle 200ns, period: 8000ns */
+ ret = pwm_config(1, 200, 8000);
+ if (ret)
+ goto error;
+ ret = pwm_enable(1);
+ if (ret)
+ goto error;
+
+ /* enable backlight PWM 1, blue LED */
+ ret = pwm_init(0, 0, 0);
+ if (ret)
+ goto error;
+ /* duty cycle 200ns, period: 8000ns */
+ ret = pwm_config(0, 200, 8000);
+ if (ret)
+ goto error;
+ ret = pwm_enable(0);
+ if (ret)
+ goto error;
+
+ /* enable backlight PWM 6, red LED */
+ ret = pwm_init(5, 0, 0);
+ if (ret)
+ goto error;
+ /* duty cycle 200ns, period: 8000ns */
+ ret = pwm_config(5, 200, 8000);
+ if (ret)
+ goto error;
+ ret = pwm_enable(5);
+
+error:
+ return ret;
+}
+#else
+static int set_pwm_leds(void)
+{
+ return 0;
+}
+#endif
+
+#define ADCx_HC0 0x00
+#define ADCx_HS 0x08
+#define ADCx_HS_C0 BIT(0)
+#define ADCx_R0 0x0c
+#define ADCx_CFG 0x14
+#define ADCx_CFG_SWMODE 0x308
+#define ADCx_GC 0x18
+#define ADCx_GC_CAL BIT(7)
+
+static int read_adc(u32 *val)
+{
+ int ret;
+ void __iomem *b = map_physmem(ADC1_BASE_ADDR, 0x100, MAP_NOCACHE);
+
+ /* use software mode */
+ writel(ADCx_CFG_SWMODE, b + ADCx_CFG);
+
+ /* start auto calibration */
+ setbits_le32(b + ADCx_GC, ADCx_GC_CAL);
+ ret = wait_for_bit("ADC", b + ADCx_GC, ADCx_GC_CAL, ADCx_GC_CAL, 10, 0);
+ if (ret)
+ goto adc_exit;
+
+ /* start conversion */
+ writel(0, b + ADCx_HC0);
+
+ /* wait for conversion */
+ ret = wait_for_bit("ADC", b + ADCx_HS, ADCx_HS_C0, ADCx_HS_C0, 10, 0);
+ if (ret)
+ goto adc_exit;
+
+ /* read result */
+ *val = readl(b + ADCx_R0);
+
+adc_exit:
+ if (ret)
+ printf("ADC failure (ret=%i)\n", ret);
+ unmap_physmem(b, MAP_NOCACHE);
+ return ret;
+}
+
+#define VAL_UPPER 2498
+#define VAL_LOWER 1550
+
+static int set_pin_state(void)
+{
+ u32 val;
+ int ret;
+
+ ret = read_adc(&val);
+ if (ret)
+ return ret;
+
+ if (val >= VAL_UPPER)
+ setenv("pin_state", "connected");
+ else if (val < VAL_UPPER && val > VAL_LOWER)
+ setenv("pin_state", "open");
+ else
+ setenv("pin_state", "button");
+
+ return ret;
+}
+
+int board_late_init(void)
+{
+ int ret;
+
+ ret = set_pwm_leds();
+ if (ret)
+ return ret;
+
+ ret = set_pin_state();
+
+ return ret;
+}
+
+int board_early_init_f(void)
+{
+ setup_iomux_uart();
+
+ setup_iomux_usb();
+
+ return 0;
+}
+
+static struct fsl_esdhc_cfg usdhc_cfg[2] = {
+ {USDHC4_BASE_ADDR, 0, 8},
+ {USDHC2_BASE_ADDR, 0, 4},
+};
+
+#define USDHC2_CD_GPIO IMX_GPIO_NR(3, 28)
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+
+ if (cfg->esdhc_base == USDHC4_BASE_ADDR)
+ return 1;
+ if (cfg->esdhc_base == USDHC2_BASE_ADDR)
+ return !gpio_get_value(USDHC2_CD_GPIO);
+
+ return -EINVAL;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ int ret;
+
+ /*
+ * According to the board_mmc_init() the following map is done:
+ * (U-Boot device node) (Physical Port)
+ * mmc0 USDHC4
+ * mmc1 USDHC2
+ */
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+ usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
+
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+ gpio_direction_input(USDHC2_CD_GPIO);
+ usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+
+ ret = fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
+ if (ret) {
+ printf("Warning: failed to initialize USDHC4\n");
+ return ret;
+ }
+
+ ret = fsl_esdhc_initialize(bis, &usdhc_cfg[1]);
+ if (ret) {
+ printf("Warning: failed to initialize USDHC2\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* Address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+#ifdef CONFIG_SYS_I2C_MXC
+ setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+#endif
+
+ return 0;
+}
+
+int checkboard(void)
+{
+ puts("Board: VIN|ING 2000\n");
+
+ return 0;
+}
projects / oweals / u-boot.git / blobdiff