mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 17:08:52 +09:00
![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
455 lines
13 KiB
C
455 lines
13 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2014 Soeren Moch <smoch@web.de>
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*/
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#include <asm/arch/clock.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/mx6-pins.h>
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#include <linux/errno.h>
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#include <asm/gpio.h>
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#include <asm/mach-imx/mxc_i2c.h>
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#include <asm/mach-imx/iomux-v3.h>
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#include <asm/mach-imx/sata.h>
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#include <asm/mach-imx/boot_mode.h>
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#include <asm/mach-imx/video.h>
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#include <mmc.h>
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#include <fsl_esdhc.h>
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#include <miiphy.h>
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#include <netdev.h>
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#include <asm/arch/mxc_hdmi.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/io.h>
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#include <asm/arch/sys_proto.h>
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#include <i2c.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define WEAK_PULLUP (PAD_CTL_PUS_47K_UP | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
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PAD_CTL_SRE_SLOW)
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#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
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PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
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PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
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#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
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PAD_CTL_ODE | PAD_CTL_SRE_FAST)
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#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
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#ifdef CONFIG_SYS_I2C
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/* I2C1, SGTL5000 */
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static struct i2c_pads_info i2c_pad_info0 = {
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.scl = {
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.i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL | I2C_PAD,
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.gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27 | I2C_PAD,
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.gp = IMX_GPIO_NR(5, 27)
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},
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.sda = {
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.i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA | I2C_PAD,
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.gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26 | I2C_PAD,
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.gp = IMX_GPIO_NR(5, 26)
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}
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};
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/* I2C2 HDMI */
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static struct i2c_pads_info i2c_pad_info1 = {
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.scl = {
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.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | I2C_PAD,
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.gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | I2C_PAD,
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.gp = IMX_GPIO_NR(4, 12)
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},
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.sda = {
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.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD,
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.gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD,
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.gp = IMX_GPIO_NR(4, 13)
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}
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};
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/* I2C3, CON11, DS1307, PCIe_SMB */
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static struct i2c_pads_info i2c_pad_info2 = {
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.scl = {
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.i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | I2C_PAD,
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.gpio_mode = MX6_PAD_GPIO_3__GPIO1_IO03 | I2C_PAD,
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.gp = IMX_GPIO_NR(1, 3)
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},
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.sda = {
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.i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | I2C_PAD,
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.gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06 | I2C_PAD,
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.gp = IMX_GPIO_NR(1, 6)
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}
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};
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#endif /* CONFIG_SYS_I2C */
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static iomux_v3_cfg_t const uart1_pads[] = {
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MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static iomux_v3_cfg_t const uart2_pads[] = {
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MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static iomux_v3_cfg_t const enet_pads[] = {
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MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
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/* AR8035 PHY Reset */
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MX6_PAD_ENET_CRS_DV__GPIO1_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static iomux_v3_cfg_t const pcie_pads[] = {
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/* W_DISABLE# */
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MX6_PAD_KEY_COL4__GPIO4_IO14 | MUX_PAD_CTRL(WEAK_PULLUP),
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/* PERST# */
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MX6_PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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int dram_init(void)
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{
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gd->ram_size = 2048ul * 1024 * 1024;
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return 0;
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}
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static void setup_iomux_enet(void)
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{
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imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
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/* Reset AR8035 PHY */
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gpio_direction_output(IMX_GPIO_NR(1, 25) , 0);
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udelay(500);
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gpio_set_value(IMX_GPIO_NR(1, 25), 1);
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}
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static void setup_pcie(void)
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{
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imx_iomux_v3_setup_multiple_pads(pcie_pads, ARRAY_SIZE(pcie_pads));
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}
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static void setup_iomux_uart(void)
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{
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imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
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imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
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}
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#ifdef CONFIG_FSL_ESDHC
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static iomux_v3_cfg_t const usdhc2_pads[] = {
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MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_NANDF_D2__GPIO2_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
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};
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static iomux_v3_cfg_t const usdhc3_pads[] = {
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MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_NANDF_D0__GPIO2_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
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};
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static iomux_v3_cfg_t const usdhc4_pads[] = {
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MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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};
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static struct fsl_esdhc_cfg usdhc_cfg[3] = {
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{USDHC2_BASE_ADDR},
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{USDHC3_BASE_ADDR},
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{USDHC4_BASE_ADDR},
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};
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#define USDHC2_CD_GPIO IMX_GPIO_NR(2, 2)
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#define USDHC3_CD_GPIO IMX_GPIO_NR(2, 0)
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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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int ret = 0;
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switch (cfg->esdhc_base) {
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case USDHC2_BASE_ADDR:
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ret = !gpio_get_value(USDHC2_CD_GPIO);
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break;
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case USDHC3_BASE_ADDR:
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ret = !gpio_get_value(USDHC3_CD_GPIO);
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break;
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case USDHC4_BASE_ADDR:
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ret = 1; /* eMMC/uSDHC4 is always present */
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break;
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}
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return ret;
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}
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int board_mmc_init(bd_t *bis)
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{
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/*
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* (U-Boot device node) (Physical Port)
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* mmc0 SD2
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* mmc1 SD3
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* mmc2 eMMC
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*/
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int i, ret;
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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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imx_iomux_v3_setup_multiple_pads(
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usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
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gpio_direction_input(USDHC2_CD_GPIO);
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
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break;
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case 1:
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imx_iomux_v3_setup_multiple_pads(
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usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
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gpio_direction_input(USDHC3_CD_GPIO);
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usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
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break;
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case 2:
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imx_iomux_v3_setup_multiple_pads(
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usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
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usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
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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) then supported by the board (%d)\n",
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i + 1, CONFIG_SYS_FSL_USDHC_NUM);
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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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/* set environment device to boot device when booting from SD */
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int board_mmc_get_env_dev(int devno)
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{
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return devno - 1;
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}
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int board_mmc_get_env_part(int devno)
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{
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return (devno == 3) ? 1 : 0; /* part 0 for SD2 / SD3, part 1 for eMMC */
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}
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#endif /* CONFIG_FSL_ESDHC */
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#ifdef CONFIG_VIDEO_IPUV3
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static void do_enable_hdmi(struct display_info_t const *dev)
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{
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imx_enable_hdmi_phy();
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}
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struct display_info_t const displays[] = {{
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.bus = -1,
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.addr = 0,
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.pixfmt = IPU_PIX_FMT_RGB24,
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.detect = detect_hdmi,
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.enable = do_enable_hdmi,
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.mode = {
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.name = "HDMI",
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/* 1024x768@60Hz (VESA)*/
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.refresh = 60,
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.xres = 1024,
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.yres = 768,
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.pixclock = 15384,
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.left_margin = 160,
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.right_margin = 24,
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.upper_margin = 29,
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.lower_margin = 3,
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.hsync_len = 136,
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.vsync_len = 6,
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.sync = FB_SYNC_EXT,
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.vmode = FB_VMODE_NONINTERLACED
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} } };
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size_t display_count = ARRAY_SIZE(displays);
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static void setup_display(void)
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{
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struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
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int reg;
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s32 timeout = 100000;
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enable_ipu_clock();
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imx_setup_hdmi();
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/* set video pll to 455MHz (24MHz * (37+11/12) / 2) */
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reg = readl(&ccm->analog_pll_video);
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reg |= BM_ANADIG_PLL_VIDEO_POWERDOWN;
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writel(reg, &ccm->analog_pll_video);
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reg &= ~BM_ANADIG_PLL_VIDEO_DIV_SELECT;
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reg |= BF_ANADIG_PLL_VIDEO_DIV_SELECT(37);
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reg &= ~BM_ANADIG_PLL_VIDEO_POST_DIV_SELECT;
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reg |= BF_ANADIG_PLL_VIDEO_POST_DIV_SELECT(1);
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writel(reg, &ccm->analog_pll_video);
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writel(BF_ANADIG_PLL_VIDEO_NUM_A(11), &ccm->analog_pll_video_num);
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writel(BF_ANADIG_PLL_VIDEO_DENOM_B(12), &ccm->analog_pll_video_denom);
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reg &= ~BM_ANADIG_PLL_VIDEO_POWERDOWN;
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writel(reg, &ccm->analog_pll_video);
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while (timeout--)
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if (readl(&ccm->analog_pll_video) & BM_ANADIG_PLL_VIDEO_LOCK)
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break;
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if (timeout < 0)
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printf("Warning: video pll lock timeout!\n");
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reg = readl(&ccm->analog_pll_video);
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reg |= BM_ANADIG_PLL_VIDEO_ENABLE;
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reg &= ~BM_ANADIG_PLL_VIDEO_BYPASS;
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writel(reg, &ccm->analog_pll_video);
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/* gate ipu1_di0_clk */
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reg = readl(&ccm->CCGR3);
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reg &= ~MXC_CCM_CCGR3_LDB_DI0_MASK;
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writel(reg, &ccm->CCGR3);
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/* select video_pll clock / 7 for ipu1_di0_clk -> 65MHz pixclock */
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reg = readl(&ccm->chsccdr);
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reg &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK |
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MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK |
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MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
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reg |= (2 << MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET) |
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(6 << MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET) |
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(0 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
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writel(reg, &ccm->chsccdr);
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/* enable ipu1_di0_clk */
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reg = readl(&ccm->CCGR3);
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reg |= MXC_CCM_CCGR3_LDB_DI0_MASK;
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writel(reg, &ccm->CCGR3);
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}
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#endif /* CONFIG_VIDEO_IPUV3 */
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static int ar8035_phy_fixup(struct phy_device *phydev)
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{
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unsigned short val;
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/* To enable AR8035 ouput a 125MHz clk from CLK_25M */
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phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
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phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
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phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
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val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
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val &= 0xffe3;
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val |= 0x18;
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phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
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|
/* 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)
|
|
{
|
|
ar8035_phy_fixup(phydev);
|
|
|
|
if (phydev->drv->config)
|
|
phydev->drv->config(phydev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_eth_init(bd_t *bis)
|
|
{
|
|
setup_iomux_enet();
|
|
setup_pcie();
|
|
return cpu_eth_init(bis);
|
|
}
|
|
|
|
int board_early_init_f(void)
|
|
{
|
|
setup_iomux_uart();
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_CMD_BMODE
|
|
static const struct boot_mode board_boot_modes[] = {
|
|
/* 4 bit bus width */
|
|
{"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
|
|
{"sd3", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
|
|
/* 8 bit bus width */
|
|
{"emmc", MAKE_CFGVAL(0x60, 0x58, 0x00, 0x00)},
|
|
{NULL, 0},
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_USB_EHCI_MX6
|
|
static iomux_v3_cfg_t const usb_otg_pads[] = {
|
|
MX6_PAD_ENET_RX_ER__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
};
|
|
#endif
|
|
|
|
int board_init(void)
|
|
{
|
|
/* address of boot parameters */
|
|
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
|
|
|
|
#ifdef CONFIG_VIDEO_IPUV3
|
|
setup_display();
|
|
#endif
|
|
#ifdef CONFIG_SYS_I2C
|
|
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
|
|
setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
|
|
setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
|
|
#endif
|
|
#ifdef CONFIG_DWC_AHSATA
|
|
setup_sata();
|
|
#endif
|
|
#ifdef CONFIG_CMD_BMODE
|
|
add_board_boot_modes(board_boot_modes);
|
|
#endif
|
|
#ifdef CONFIG_USB_EHCI_MX6
|
|
imx_iomux_v3_setup_multiple_pads(
|
|
usb_otg_pads, ARRAY_SIZE(usb_otg_pads));
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int checkboard(void)
|
|
{
|
|
puts("Board: TBS2910 Matrix ARM mini PC\n");
|
|
return 0;
|
|
}
|