mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 02:36:39 +09:00
83d290c56f
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>
279 lines
7.8 KiB
C
279 lines
7.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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*
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* Based on:
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* Copyright (C) 2012 Freescale Semiconductor, Inc.
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*
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* Author: Fabio Estevam <fabio.estevam@freescale.com>
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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/iomux-v3.h>
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#include <asm/mach-imx/boot_mode.h>
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#include <asm/mach-imx/mxc_i2c.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 <linux/fb.h>
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#include <ipu_pixfmt.h>
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#include <asm/io.h>
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#include <asm/arch/sys_proto.h>
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#include <pwm.h>
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struct i2c_pads_info i2c_pad_info3 = {
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.scl = {
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.i2c_mode = MX6_PAD_EIM_D17__I2C3_SCL | PC,
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.gpio_mode = MX6_PAD_EIM_D17__GPIO3_IO17 | PC,
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.gp = IMX_GPIO_NR(3, 17)
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},
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.sda = {
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.i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
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.gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC,
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.gp = IMX_GPIO_NR(3, 18)
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}
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};
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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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iomux_v3_cfg_t const uart5_pads[] = {
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MX6_PAD_CSI0_DAT14__UART5_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_CSI0_DAT15__UART5_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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iomux_v3_cfg_t const gpio_pads[] = {
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/* LED enable */
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MX6_PAD_SD4_DAT5__GPIO2_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* spi flash WP protect */
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MX6_PAD_SD4_DAT7__GPIO2_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* backlight enable */
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MX6_PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* LED yellow */
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MX6_PAD_GPIO_3__GPIO1_IO03 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* LED red */
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MX6_PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* LED green */
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MX6_PAD_GPIO_5__GPIO1_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* LED blue */
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MX6_PAD_GPIO_6__GPIO1_IO06 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* i2c4 scl */
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MX6_PAD_GPIO_7__GPIO1_IO07 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* i2c4 sda */
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MX6_PAD_GPIO_8__GPIO1_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* spi CS 1 */
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MX6_PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static iomux_v3_cfg_t const misc_pads[] = {
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MX6_PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* OTG Power enable */
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MX6_PAD_EIM_D31__GPIO3_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX6_PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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iomux_v3_cfg_t const enet_pads[] = {
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MX6_PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(0x4001b0a8),
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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_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_RX_ER__ENET_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
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};
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static void setup_iomux_enet(void)
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{
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struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
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imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
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/* set GPIO_16 as ENET_REF_CLK_OUT */
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setbits_le32(&iomux->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
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}
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static iomux_v3_cfg_t const backlight_pads[] = {
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MX6_PAD_GPIO_9__PWM1_OUT | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX6_PAD_SD4_DAT1__PWM3_OUT | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX6_PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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iomux_v3_cfg_t const ecspi4_pads[] = {
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MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX6_PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static iomux_v3_cfg_t const display_pads[] = {
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MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | MUX_PAD_CTRL(DISP_PAD_CTRL),
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MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
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MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02,
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MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03,
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MX6_PAD_DI0_PIN4__GPIO4_IO20,
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MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00,
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MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01,
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MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02,
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MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03,
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MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04,
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MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05,
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MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06,
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MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07,
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MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08,
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MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09,
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MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10,
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MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11,
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MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12,
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MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13,
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MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14,
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MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15,
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MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16,
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MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17,
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MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18,
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MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19,
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MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20,
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MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21,
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MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22,
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MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23,
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};
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int board_spi_cs_gpio(unsigned bus, unsigned cs)
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{
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return (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS)
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? (IMX_GPIO_NR(3, 20)) : -1;
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}
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static void setup_spi(void)
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{
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int i;
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imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads));
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for (i = 0; i < 3; i++)
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enable_spi_clk(true, i);
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/* set cs1 to high */
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gpio_direction_output(ECSPI4_CS1, 1);
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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(uart5_pads, ARRAY_SIZE(uart5_pads));
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}
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int board_eth_init(bd_t *bis)
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{
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struct iomuxc *iomuxc_regs =
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(struct iomuxc *)IOMUXC_BASE_ADDR;
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int ret;
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/* clear gpr1[14], gpr1[18:17] to select anatop clock */
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clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);
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ret = enable_fec_anatop_clock(0, ENET_50MHZ);
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if (ret)
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return ret;
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setup_iomux_enet();
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return cpu_eth_init(bis);
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}
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static void enable_lvds(struct display_info_t const *dev)
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{
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imx_iomux_v3_setup_multiple_pads(
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display_pads,
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ARRAY_SIZE(display_pads));
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imx_iomux_v3_setup_multiple_pads(
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backlight_pads,
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ARRAY_SIZE(backlight_pads));
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/* enable backlight PWM 3 */
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if (pwm_init(2, 0, 0))
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goto error;
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/* duty cycle 500ns, period: 3000ns */
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if (pwm_config(2, 500, 3000))
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goto error;
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if (pwm_enable(2))
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goto error;
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return;
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error:
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puts("error init pwm for backlight\n");
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return;
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}
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static void setup_display(void)
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{
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struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
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int reg;
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enable_ipu_clock();
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reg = readl(&mxc_ccm->cs2cdr);
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/* select pll 5 clock */
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reg &= MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK;
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reg &= MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK;
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writel(reg, &mxc_ccm->cs2cdr);
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imx_iomux_v3_setup_multiple_pads(backlight_pads,
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ARRAY_SIZE(backlight_pads));
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}
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static void setup_iomux_gpio(void)
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{
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imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
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}
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int board_early_init_f(void)
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{
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setup_iomux_uart();
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setup_iomux_gpio();
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setup_display();
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return 0;
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}
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static void setup_i2c4(void)
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{
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/* i2c4 not used, set it to gpio input */
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gpio_request(IMX_GPIO_NR(1, 7), "i2c4_scl");
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gpio_direction_input(IMX_GPIO_NR(1, 7));
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gpio_request(IMX_GPIO_NR(1, 8), "i2c4_sda");
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gpio_direction_input(IMX_GPIO_NR(1, 8));
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}
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static void setup_board_gpio(void)
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{
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/* enable LED */
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gpio_request(IMX_GPIO_NR(2, 13), "LED ena");
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gpio_direction_output(IMX_GPIO_NR(2, 13), 0);
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gpio_request(IMX_GPIO_NR(1, 3), "LED yellow");
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gpio_direction_output(IMX_GPIO_NR(1, 3), 1);
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gpio_request(IMX_GPIO_NR(1, 4), "LED red");
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gpio_direction_output(IMX_GPIO_NR(1, 4), 1);
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gpio_request(IMX_GPIO_NR(1, 5), "LED green");
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gpio_direction_output(IMX_GPIO_NR(1, 5), 1);
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gpio_request(IMX_GPIO_NR(1, 6), "LED blue");
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gpio_direction_output(IMX_GPIO_NR(1, 6), 1);
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}
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static void setup_board_spi(void)
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{
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}
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