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board/compulab/cm_fx6/cm_fx6.c
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/* * Board functions for Compulab CM-FX6 board * * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/ * * Author: Nikita Kiryanov <nikita@compulab.co.il> * * SPDX-License-Identifier: GPL-2.0+ */ #include <common.h> |
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#include <dm.h> |
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#include <fsl_esdhc.h> |
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#include <miiphy.h> #include <netdev.h> #include <fdt_support.h> |
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#include <sata.h> |
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#include <asm/arch/crm_regs.h> |
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#include <asm/arch/sys_proto.h> |
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#include <asm/arch/iomux.h> |
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#include <asm/imx-common/mxc_i2c.h> |
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#include <asm/imx-common/sata.h> |
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#include <asm/io.h> |
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#include <asm/gpio.h> |
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#include <dm/platform_data/serial_mxc.h> |
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#include "common.h" |
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#include "../common/eeprom.h" |
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DECLARE_GLOBAL_DATA_PTR; |
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#ifdef CONFIG_DWC_AHSATA static int cm_fx6_issd_gpios[] = { /* The order of the GPIOs in the array is important! */ |
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CM_FX6_SATA_LDO_EN, |
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CM_FX6_SATA_PHY_SLP, CM_FX6_SATA_NRSTDLY, CM_FX6_SATA_PWREN, CM_FX6_SATA_NSTANDBY1, CM_FX6_SATA_NSTANDBY2, |
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}; static void cm_fx6_sata_power(int on) { int i; if (!on) { /* tell the iSSD that the power will be removed */ gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 1); mdelay(10); } for (i = 0; i < ARRAY_SIZE(cm_fx6_issd_gpios); i++) { gpio_direction_output(cm_fx6_issd_gpios[i], on); udelay(100); } if (!on) /* for compatibility lower the power loss interrupt */ gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 0); } static iomux_v3_cfg_t const sata_pads[] = { /* SATA PWR */ IOMUX_PADS(PAD_ENET_TX_EN__GPIO1_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_EIM_A22__GPIO2_IO16 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* SATA CTRL */ IOMUX_PADS(PAD_ENET_TXD0__GPIO1_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_EIM_A23__GPIO6_IO06 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)), }; |
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static int cm_fx6_setup_issd(void) |
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{ |
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int ret, i; |
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SETUP_IOMUX_PADS(sata_pads); |
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for (i = 0; i < ARRAY_SIZE(cm_fx6_issd_gpios); i++) { ret = gpio_request(cm_fx6_issd_gpios[i], "sata"); if (ret) return ret; } ret = gpio_request(CM_FX6_SATA_PWLOSS_INT, "sata_pwloss_int"); if (ret) return ret; return 0; |
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} #define CM_FX6_SATA_INIT_RETRIES 10 int sata_initialize(void) { int err, i; |
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/* Make sure this gpio has logical 0 value */ gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 0); udelay(100); |
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cm_fx6_sata_power(1); |
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for (i = 0; i < CM_FX6_SATA_INIT_RETRIES; i++) { err = setup_sata(); if (err) { printf("SATA setup failed: %d ", err); return err; } udelay(100); err = __sata_initialize(); if (!err) break; /* There is no device on the SATA port */ if (sata_port_status(0, 0) == 0) break; /* There's a device, but link not established. Retry */ } return err; } |
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int sata_stop(void) { __sata_stop(); cm_fx6_sata_power(0); mdelay(250); return 0; } |
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#else static int cm_fx6_setup_issd(void) { return 0; } |
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#endif |
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#ifdef CONFIG_SYS_I2C_MXC #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ PAD_CTL_ODE | PAD_CTL_SRE_FAST) I2C_PADS(i2c0_pads, PAD_EIM_D21__I2C1_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL), PAD_EIM_D21__GPIO3_IO21 | MUX_PAD_CTRL(I2C_PAD_CTRL), IMX_GPIO_NR(3, 21), PAD_EIM_D28__I2C1_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL), PAD_EIM_D28__GPIO3_IO28 | MUX_PAD_CTRL(I2C_PAD_CTRL), IMX_GPIO_NR(3, 28)); I2C_PADS(i2c1_pads, PAD_KEY_COL3__I2C2_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL), PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(I2C_PAD_CTRL), IMX_GPIO_NR(4, 12), PAD_KEY_ROW3__I2C2_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL), PAD_KEY_ROW3__GPIO4_IO13 | MUX_PAD_CTRL(I2C_PAD_CTRL), IMX_GPIO_NR(4, 13)); I2C_PADS(i2c2_pads, PAD_GPIO_3__I2C3_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL), PAD_GPIO_3__GPIO1_IO03 | MUX_PAD_CTRL(I2C_PAD_CTRL), IMX_GPIO_NR(1, 3), PAD_GPIO_6__I2C3_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL), PAD_GPIO_6__GPIO1_IO06 | MUX_PAD_CTRL(I2C_PAD_CTRL), IMX_GPIO_NR(1, 6)); |
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static int cm_fx6_setup_one_i2c(int busnum, struct i2c_pads_info *pads) |
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{ |
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int ret; ret = setup_i2c(busnum, CONFIG_SYS_I2C_SPEED, 0x7f, pads); if (ret) printf("Warning: I2C%d setup failed: %d ", busnum, ret); return ret; } static int cm_fx6_setup_i2c(void) { int ret = 0, err; /* i2c<x>_pads are wierd macro variables; we can't use an array */ err = cm_fx6_setup_one_i2c(0, I2C_PADS_INFO(i2c0_pads)); if (err) ret = err; err = cm_fx6_setup_one_i2c(1, I2C_PADS_INFO(i2c1_pads)); if (err) ret = err; err = cm_fx6_setup_one_i2c(2, I2C_PADS_INFO(i2c2_pads)); if (err) ret = err; return ret; |
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} #else |
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static int cm_fx6_setup_i2c(void) { return 0; } |
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#endif |
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#ifdef CONFIG_USB_EHCI_MX6 #define WEAK_PULLDOWN (PAD_CTL_PUS_100K_DOWN | \ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ PAD_CTL_HYS | PAD_CTL_SRE_SLOW) |
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#define MX6_USBNC_BASEADDR 0x2184800 #define USBNC_USB_H1_PWR_POL (1 << 9) |
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static int cm_fx6_setup_usb_host(void) |
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{ int err; err = gpio_request(CM_FX6_USB_HUB_RST, "usb hub rst"); |
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if (err) return err; |
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SETUP_IOMUX_PAD(PAD_GPIO_0__USB_H1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL)); |
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SETUP_IOMUX_PAD(PAD_SD3_RST__GPIO7_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL)); |
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return 0; } |
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static int cm_fx6_setup_usb_otg(void) |
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{ |
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int err; |
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struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; |
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err = gpio_request(SB_FX6_USB_OTG_PWR, "usb-pwr"); if (err) { printf("USB OTG pwr gpio request failed: %d ", err); return err; |
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} SETUP_IOMUX_PAD(PAD_EIM_D22__GPIO3_IO22 | MUX_PAD_CTRL(NO_PAD_CTRL)); SETUP_IOMUX_PAD(PAD_ENET_RX_ER__USB_OTG_ID | MUX_PAD_CTRL(WEAK_PULLDOWN)); clrbits_le32(&iomux->gpr[1], IOMUXC_GPR1_OTG_ID_MASK); /* disable ext. charger detect, or it'll affect signal quality at dp. */ return gpio_direction_output(SB_FX6_USB_OTG_PWR, 0); } |
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int board_ehci_hcd_init(int port) { |
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int ret; |
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u32 *usbnc_usb_uh1_ctrl = (u32 *)(MX6_USBNC_BASEADDR + 4); |
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/* Only 1 host controller in use. port 0 is OTG & needs no attention */ if (port != 1) return 0; /* Set PWR polarity to match power switch's enable polarity */ setbits_le32(usbnc_usb_uh1_ctrl, USBNC_USB_H1_PWR_POL); ret = gpio_direction_output(CM_FX6_USB_HUB_RST, 0); if (ret) return ret; udelay(10); ret = gpio_direction_output(CM_FX6_USB_HUB_RST, 1); if (ret) return ret; mdelay(1); |
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return 0; } int board_ehci_power(int port, int on) { if (port == 0) return gpio_direction_output(SB_FX6_USB_OTG_PWR, on); return 0; } |
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#else static int cm_fx6_setup_usb_otg(void) { return 0; } static int cm_fx6_setup_usb_host(void) { return 0; } |
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#endif |
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#ifdef CONFIG_FEC_MXC #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ PAD_CTL_DSE_40ohm | PAD_CTL_HYS) static int mx6_rgmii_rework(struct phy_device *phydev) { unsigned short val; /* Ar8031 phy SmartEEE feature cause link status generates glitch, * which cause ethernet link down/up issue, so disable SmartEEE */ phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x3); phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x805d); phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4003); val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe); val &= ~(0x1 << 8); phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val); /* To enable AR8031 ouput a 125MHz clk from CLK_25M */ phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7); phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016); phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007); val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe); val &= 0xffe3; val |= 0x18; phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val); /* introduce tx clock delay */ phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5); val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e); val |= 0x0100; phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val); return 0; } int board_phy_config(struct phy_device *phydev) { mx6_rgmii_rework(phydev); if (phydev->drv->config) return phydev->drv->config(phydev); return 0; } static iomux_v3_cfg_t const enet_pads[] = { IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_GPIO_0__CCM_CLKO1 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_GPIO_3__CCM_CLKO2 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_SD4_DAT0__GPIO2_IO08 | MUX_PAD_CTRL(0x84)), IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)), IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)), }; |
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static int handle_mac_address(void) { unsigned char enetaddr[6]; int rc; rc = eth_getenv_enetaddr("ethaddr", enetaddr); if (rc) return 0; rc = cl_eeprom_read_mac_addr(enetaddr); if (rc) return rc; if (!is_valid_ether_addr(enetaddr)) return -1; return eth_setenv_enetaddr("ethaddr", enetaddr); } |
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int board_eth_init(bd_t *bis) { |
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int err; err = handle_mac_address(); if (err) |
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puts("No MAC address found "); |
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SETUP_IOMUX_PADS(enet_pads); /* phy reset */ |
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err = gpio_request(CM_FX6_ENET_NRST, "enet_nrst"); if (err) printf("Etnernet NRST gpio request failed: %d ", err); |
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gpio_direction_output(CM_FX6_ENET_NRST, 0); udelay(500); gpio_set_value(CM_FX6_ENET_NRST, 1); enable_enet_clk(1); return cpu_eth_init(bis); } #endif |
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#ifdef CONFIG_NAND_MXS static iomux_v3_cfg_t const nand_pads[] = { IOMUX_PADS(PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NO_PAD_CTRL)), IOMUX_PADS(PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NO_PAD_CTRL)), }; static void cm_fx6_setup_gpmi_nand(void) { SETUP_IOMUX_PADS(nand_pads); /* Enable clock roots */ enable_usdhc_clk(1, 3); enable_usdhc_clk(1, 4); setup_gpmi_io_clk(MXC_CCM_CS2CDR_ENFC_CLK_PODF(0xf) | MXC_CCM_CS2CDR_ENFC_CLK_PRED(1) | MXC_CCM_CS2CDR_ENFC_CLK_SEL(0)); } #else static void cm_fx6_setup_gpmi_nand(void) {} #endif |
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#ifdef CONFIG_FSL_ESDHC static struct fsl_esdhc_cfg usdhc_cfg[3] = { {USDHC1_BASE_ADDR}, {USDHC2_BASE_ADDR}, {USDHC3_BASE_ADDR}, }; static enum mxc_clock usdhc_clk[3] = { MXC_ESDHC_CLK, MXC_ESDHC2_CLK, MXC_ESDHC3_CLK, }; int board_mmc_init(bd_t *bis) { int i; cm_fx6_set_usdhc_iomux(); for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { usdhc_cfg[i].sdhc_clk = mxc_get_clock(usdhc_clk[i]); usdhc_cfg[i].max_bus_width = 4; fsl_esdhc_initialize(bis, &usdhc_cfg[i]); enable_usdhc_clk(1, i); } return 0; } #endif |
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#ifdef CONFIG_MXC_SPI int cm_fx6_setup_ecspi(void) { cm_fx6_set_ecspi_iomux(); return gpio_request(CM_FX6_ECSPI_BUS0_CS0, "ecspi_bus0_cs0"); } #else int cm_fx6_setup_ecspi(void) { return 0; } #endif |
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#ifdef CONFIG_OF_BOARD_SETUP void ft_board_setup(void *blob, bd_t *bd) { uint8_t enetaddr[6]; /* MAC addr */ if (eth_getenv_enetaddr("ethaddr", enetaddr)) { fdt_find_and_setprop(blob, "/fec", "local-mac-address", enetaddr, 6, 1); } } #endif |
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int board_init(void) { |
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int ret; |
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gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; |
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cm_fx6_setup_gpmi_nand(); |
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ret = cm_fx6_setup_ecspi(); if (ret) printf("Warning: ECSPI setup failed: %d ", ret); ret = cm_fx6_setup_usb_otg(); if (ret) printf("Warning: USB OTG setup failed: %d ", ret); ret = cm_fx6_setup_usb_host(); if (ret) printf("Warning: USB host setup failed: %d ", ret); /* * cm-fx6 may have iSSD not assembled and in this case it has * bypasses for a (m)SATA socket on the baseboard. The socketed * device is not controlled by those GPIOs. So just print a warning * if the setup fails. */ ret = cm_fx6_setup_issd(); if (ret) printf("Warning: iSSD setup failed: %d ", ret); |
edbf8b4f8 imx: Add error ch... |
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/* Warn on failure but do not abort boot */ ret = cm_fx6_setup_i2c(); if (ret) printf("Warning: I2C setup failed: %d ", ret); |
a6b0652bb arm: mx6: cm_fx6:... |
492 |
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e32028a70 arm: mx6: add sup... |
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return 0; } int checkboard(void) { puts("Board: CM-FX6 "); return 0; } void dram_init_banksize(void) { gd->bd->bi_dram[0].start = PHYS_SDRAM_1; gd->bd->bi_dram[1].start = PHYS_SDRAM_2; switch (gd->ram_size) { case 0x10000000: /* DDR_16BIT_256MB */ gd->bd->bi_dram[0].size = 0x10000000; gd->bd->bi_dram[1].size = 0; break; case 0x20000000: /* DDR_32BIT_512MB */ gd->bd->bi_dram[0].size = 0x20000000; gd->bd->bi_dram[1].size = 0; break; case 0x40000000: if (is_cpu_type(MXC_CPU_MX6SOLO)) { /* DDR_32BIT_1GB */ gd->bd->bi_dram[0].size = 0x20000000; gd->bd->bi_dram[1].size = 0x20000000; } else { /* DDR_64BIT_1GB */ gd->bd->bi_dram[0].size = 0x40000000; gd->bd->bi_dram[1].size = 0; } break; case 0x80000000: /* DDR_64BIT_2GB */ gd->bd->bi_dram[0].size = 0x40000000; gd->bd->bi_dram[1].size = 0x40000000; break; case 0xEFF00000: /* DDR_64BIT_4GB */ gd->bd->bi_dram[0].size = 0x70000000; gd->bd->bi_dram[1].size = 0x7FF00000; break; } } int dram_init(void) { gd->ram_size = imx_ddr_size(); switch (gd->ram_size) { case 0x10000000: case 0x20000000: case 0x40000000: case 0x80000000: break; case 0xF0000000: gd->ram_size -= 0x100000; break; default: printf("ERROR: Unsupported DRAM size 0x%lx ", gd->ram_size); return -1; } return 0; } |
f66113c0e arm: mx6: cm_fx6:... |
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u32 get_board_rev(void) { return cl_eeprom_get_board_rev(); } |
3f0e935f2 dm: imx: Move cm_... |
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static struct mxc_serial_platdata cm_fx6_mxc_serial_plat = { .reg = (struct mxc_uart *)UART4_BASE, }; U_BOOT_DEVICE(cm_fx6_serial) = { .name = "serial_mxc", .platdata = &cm_fx6_mxc_serial_plat, }; |