]> git.ipfire.org Git - people/ms/u-boot.git/blobdiff - board/technexion/pico-imx6ul/pico-imx6ul.c
pico-imx6ul: Directly write to register LDOGCTL
[people/ms/u-boot.git] / board / technexion / pico-imx6ul / pico-imx6ul.c
index c038d4326eee58f1e35427f16b5d7be2cdeb0c8a..49aeb80327b5d1bfc5df942ed8cdb1dd663b2883 100644 (file)
 #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 +209,65 @@ 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, &reg);
+       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_write(pfuze, PFUZE3000_LDOGCTL, 0x1);
+
+       /* 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 +275,11 @@ 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;