diff options
Diffstat (limited to 'board/technexion/pico-imx6ul/pico-imx6ul.c')
| -rw-r--r-- | board/technexion/pico-imx6ul/pico-imx6ul.c | 178 |
1 files changed, 177 insertions, 1 deletions
diff --git a/board/technexion/pico-imx6ul/pico-imx6ul.c b/board/technexion/pico-imx6ul/pico-imx6ul.c index c038d43..5cbf803 100644 --- a/board/technexion/pico-imx6ul/pico-imx6ul.c +++ b/board/technexion/pico-imx6ul/pico-imx6ul.c @@ -14,11 +14,18 @@ #include <asm/arch/sys_proto.h> #include <asm/gpio.h> #include <asm/imx-common/iomux-v3.h> +#include <asm/imx-common/mxc_i2c.h> #include <asm/io.h> #include <common.h> +#include <miiphy.h> +#include <netdev.h> #include <fsl_esdhc.h> +#include <i2c.h> #include <linux/sizes.h> #include <usb.h> +#include <power/pmic.h> +#include <power/pfuze3000_pmic.h> +#include "../../freescale/common/pfuze.h" DECLARE_GLOBAL_DATA_PTR; @@ -30,10 +37,113 @@ DECLARE_GLOBAL_DATA_PTR; PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \ PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) +#define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ + PAD_CTL_ODE) + #define OTG_ID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \ PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) +#define MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ + PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE) + +#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ + PAD_CTL_SPEED_HIGH | \ + PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST) + +#define ENET_CLK_PAD_CTRL (PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) + +#define RMII_PHY_RESET IMX_GPIO_NR(1, 28) + +#ifdef CONFIG_SYS_I2C_MXC +#define PC MUX_PAD_CTRL(I2C_PAD_CTRL) +/* I2C2 for PMIC */ +struct i2c_pads_info i2c_pad_info1 = { + .scl = { + .i2c_mode = MX6_PAD_GPIO1_IO02__I2C1_SCL | PC, + .gpio_mode = MX6_PAD_GPIO1_IO02__GPIO1_IO02 | PC, + .gp = IMX_GPIO_NR(1, 2), + }, + .sda = { + .i2c_mode = MX6_PAD_GPIO1_IO03__I2C1_SDA | PC, + .gpio_mode = MX6_PAD_GPIO1_IO03__GPIO1_IO03 | PC, + .gp = IMX_GPIO_NR(1, 3), + }, +}; +#endif + +static iomux_v3_cfg_t const fec_pads[] = { + MX6_PAD_ENET1_TX_EN__ENET2_MDC | MUX_PAD_CTRL(MDIO_PAD_CTRL), + MX6_PAD_ENET1_TX_DATA1__ENET2_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL), + MX6_PAD_ENET2_TX_DATA0__ENET2_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET2_TX_DATA1__ENET2_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL), + MX6_PAD_ENET2_TX_EN__ENET2_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET2_RX_DATA0__ENET2_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET2_RX_EN__ENET2_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET2_RX_ER__ENET2_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_UART4_TX_DATA__GPIO1_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +static void setup_iomux_fec(void) +{ + imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads)); +} + +int board_eth_init(bd_t *bis) +{ + setup_iomux_fec(); + + gpio_direction_output(RMII_PHY_RESET, 0); + /* + * According to KSZ8081MNX-RNB manual: + * For warm reset, the reset (RST#) pin should be asserted low for a + * minimum of 500μs. The strap-in pin values are read and updated + * at the de-assertion of reset. + */ + udelay(500); + + gpio_direction_output(RMII_PHY_RESET, 1); + /* + * According to KSZ8081MNX-RNB manual: + * After the de-assertion of reset, wait a minimum of 100μs before + * starting programming on the MIIM (MDC/MDIO) interface. + */ + udelay(100); + + return fecmxc_initialize(bis); +} + +static int setup_fec(void) +{ + struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + int ret; + + clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK, + IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK); + + ret = enable_fec_anatop_clock(1, ENET_50MHZ); + if (ret) + return ret; + + enable_enet_clk(1); + + return 0; +} + +int board_phy_config(struct phy_device *phydev) +{ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190); + + if (phydev->drv->config) + phydev->drv->config(phydev); + + return 0; +} + int dram_init(void) { gd->ram_size = imx_ddr_size(); @@ -59,6 +169,9 @@ static iomux_v3_cfg_t const usdhc1_pads[] = { MX6_PAD_NAND_CLE__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), }; +#define USB_OTHERREGS_OFFSET 0x800 +#define UCTRL_PWR_POL (1 << 9) + static iomux_v3_cfg_t const usb_otg_pad[] = { MX6_PAD_GPIO1_IO00__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTG_ID_PAD_CTRL), }; @@ -96,9 +209,67 @@ int board_early_init_f(void) return 0; } +#ifdef CONFIG_POWER +#define I2C_PMIC 0 +static struct pmic *pfuze; +int power_init_board(void) +{ + int ret; + unsigned int reg, rev_id; + + ret = power_pfuze3000_init(I2C_PMIC); + if (ret) + return ret; + + pfuze = pmic_get("PFUZE3000"); + ret = pmic_probe(pfuze); + if (ret) + return ret; + + pmic_reg_read(pfuze, PFUZE3000_DEVICEID, ®); + pmic_reg_read(pfuze, PFUZE3000_REVID, &rev_id); + printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id); + + /* disable Low Power Mode during standby mode */ + pmic_reg_read(pfuze, PFUZE3000_LDOGCTL, ®); + reg |= 0x1; + pmic_reg_write(pfuze, PFUZE3000_LDOGCTL, reg); + + /* SW1B step ramp up time from 2us to 4us/25mV */ + pmic_reg_write(pfuze, PFUZE3000_SW1BCONF, 0x40); + + /* SW1B mode to APS/PFM */ + pmic_reg_write(pfuze, PFUZE3000_SW1BMODE, 0xc); + + /* SW1B standby voltage set to 0.975V */ + pmic_reg_write(pfuze, PFUZE3000_SW1BSTBY, 0xb); + + return 0; +} +#endif + int board_usb_phy_mode(int port) { - return USB_INIT_DEVICE; + if (port == 1) + return USB_INIT_HOST; + else + return USB_INIT_DEVICE; +} + +int board_ehci_hcd_init(int port) +{ + u32 *usbnc_usb_ctrl; + + if (port > 1) + return -EINVAL; + + usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET + + port * 4); + + /* Set Power polarity */ + setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL); + + return 0; } int board_init(void) @@ -106,6 +277,11 @@ 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 + + setup_fec(); setup_usb(); return 0; |