upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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840 lines
22 KiB
840 lines
22 KiB
/*
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* Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
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* Copyright (C) 2013, Boundary Devices <info@boundarydevices.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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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/sys_proto.h>
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#include <malloc.h>
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#include <asm/arch/mx6-pins.h>
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#include <asm/errno.h>
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#include <asm/gpio.h>
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#include <asm/imx-common/iomux-v3.h>
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#include <asm/imx-common/mxc_i2c.h>
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#include <asm/imx-common/boot_mode.h>
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#include <mmc.h>
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#include <fsl_esdhc.h>
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#include <micrel.h>
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#include <miiphy.h>
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#include <netdev.h>
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#include <linux/fb.h>
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#include <ipu_pixfmt.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/mxc_hdmi.h>
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#include <i2c.h>
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DECLARE_GLOBAL_DATA_PTR;
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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 SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
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#define BUTTON_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 WEAK_PULLUP (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_SRE_SLOW)
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#define WEAK_PULLDOWN (PAD_CTL_PUS_100K_DOWN | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
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PAD_CTL_HYS | PAD_CTL_SRE_SLOW)
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#define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm)
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int dram_init(void)
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{
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gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024);
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return 0;
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}
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iomux_v3_cfg_t const uart1_pads[] = {
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MX6_PAD_SD3_DAT6__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_SD3_DAT7__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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iomux_v3_cfg_t const uart2_pads[] = {
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MX6_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
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/* I2C1, SGTL5000 */
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struct i2c_pads_info i2c_pad_info0 = {
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.scl = {
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.i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC,
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.gpio_mode = MX6_PAD_EIM_D21__GPIO_3_21 | PC,
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.gp = IMX_GPIO_NR(3, 21)
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},
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.sda = {
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.i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC,
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.gpio_mode = MX6_PAD_EIM_D28__GPIO_3_28 | PC,
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.gp = IMX_GPIO_NR(3, 28)
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}
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};
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/* I2C2 Camera, MIPI */
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struct i2c_pads_info i2c_pad_info1 = {
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.scl = {
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.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
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.gpio_mode = MX6_PAD_KEY_COL3__GPIO_4_12 | PC,
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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 | PC,
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.gpio_mode = MX6_PAD_KEY_ROW3__GPIO_4_13 | PC,
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.gp = IMX_GPIO_NR(4, 13)
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}
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};
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/* I2C3, J15 - RGB connector */
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struct i2c_pads_info i2c_pad_info2 = {
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.scl = {
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.i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | PC,
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.gpio_mode = MX6_PAD_GPIO_5__GPIO_1_5 | PC,
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.gp = IMX_GPIO_NR(1, 5)
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},
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.sda = {
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.i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | PC,
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.gpio_mode = MX6_PAD_GPIO_16__GPIO_7_11 | PC,
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.gp = IMX_GPIO_NR(7, 11)
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}
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};
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iomux_v3_cfg_t const usdhc3_pads[] = {
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MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD3_DAT5__GPIO_7_0 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
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};
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iomux_v3_cfg_t const usdhc4_pads[] = {
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MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_NANDF_D6__GPIO_2_6 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
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};
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iomux_v3_cfg_t const enet_pads1[] = {
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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__ENET_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD0__ENET_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD1__ENET_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD2__ENET_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD3__ENET_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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/* pin 35 - 1 (PHY_AD2) on reset */
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MX6_PAD_RGMII_RXC__GPIO_6_30 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* pin 32 - 1 - (MODE0) all */
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MX6_PAD_RGMII_RD0__GPIO_6_25 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* pin 31 - 1 - (MODE1) all */
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MX6_PAD_RGMII_RD1__GPIO_6_27 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* pin 28 - 1 - (MODE2) all */
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MX6_PAD_RGMII_RD2__GPIO_6_28 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* pin 27 - 1 - (MODE3) all */
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MX6_PAD_RGMII_RD3__GPIO_6_29 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
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MX6_PAD_RGMII_RX_CTL__GPIO_6_24 | MUX_PAD_CTRL(NO_PAD_CTRL),
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/* pin 42 PHY nRST */
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MX6_PAD_EIM_D23__GPIO_3_23 | MUX_PAD_CTRL(NO_PAD_CTRL),
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MX6_PAD_ENET_RXD0__GPIO_1_27 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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iomux_v3_cfg_t const enet_pads2[] = {
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MX6_PAD_RGMII_RXC__ENET_RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD0__ENET_RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD1__ENET_RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD2__ENET_RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD3__ENET_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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};
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/* wl1271 pads on nitrogen6x */
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iomux_v3_cfg_t const wl12xx_pads[] = {
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(MX6_PAD_NANDF_CS1__GPIO_6_14 & ~MUX_PAD_CTRL_MASK)
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| MUX_PAD_CTRL(WEAK_PULLDOWN),
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(MX6_PAD_NANDF_CS2__GPIO_6_15 & ~MUX_PAD_CTRL_MASK)
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| MUX_PAD_CTRL(OUTPUT_40OHM),
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(MX6_PAD_NANDF_CS3__GPIO_6_16 & ~MUX_PAD_CTRL_MASK)
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| MUX_PAD_CTRL(OUTPUT_40OHM),
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};
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#define WL12XX_WL_IRQ_GP IMX_GPIO_NR(6, 14)
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#define WL12XX_WL_ENABLE_GP IMX_GPIO_NR(6, 15)
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#define WL12XX_BT_ENABLE_GP IMX_GPIO_NR(6, 16)
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/* Button assignments for J14 */
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static iomux_v3_cfg_t const button_pads[] = {
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/* Menu */
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MX6_PAD_NANDF_D1__GPIO_2_1 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
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/* Back */
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MX6_PAD_NANDF_D2__GPIO_2_2 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
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/* Labelled Search (mapped to Power under Android) */
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MX6_PAD_NANDF_D3__GPIO_2_3 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
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/* Home */
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MX6_PAD_NANDF_D4__GPIO_2_4 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
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/* Volume Down */
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MX6_PAD_GPIO_19__GPIO_4_5 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
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/* Volume Up */
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MX6_PAD_GPIO_18__GPIO_7_13 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
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};
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static void setup_iomux_enet(void)
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{
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gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* SABRE Lite PHY rst */
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gpio_direction_output(IMX_GPIO_NR(1, 27), 0); /* Nitrogen6X PHY rst */
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gpio_direction_output(IMX_GPIO_NR(6, 30), 1);
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gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
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gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
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gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
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gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
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imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
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gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
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/* Need delay 10ms according to KSZ9021 spec */
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udelay(1000 * 10);
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gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* SABRE Lite PHY reset */
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gpio_set_value(IMX_GPIO_NR(1, 27), 1); /* Nitrogen6X PHY reset */
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imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
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}
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iomux_v3_cfg_t const usb_pads[] = {
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MX6_PAD_GPIO_17__GPIO_7_12 | MUX_PAD_CTRL(NO_PAD_CTRL),
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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_USB_EHCI_MX6
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int board_ehci_hcd_init(int port)
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{
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imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));
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/* Reset USB hub */
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gpio_direction_output(IMX_GPIO_NR(7, 12), 0);
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mdelay(2);
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gpio_set_value(IMX_GPIO_NR(7, 12), 1);
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return 0;
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}
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#endif
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#ifdef CONFIG_FSL_ESDHC
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struct fsl_esdhc_cfg usdhc_cfg[2] = {
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{USDHC3_BASE_ADDR},
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{USDHC4_BASE_ADDR},
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};
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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;
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if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
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gpio_direction_input(IMX_GPIO_NR(7, 0));
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ret = !gpio_get_value(IMX_GPIO_NR(7, 0));
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} else {
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gpio_direction_input(IMX_GPIO_NR(2, 6));
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ret = !gpio_get_value(IMX_GPIO_NR(2, 6));
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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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s32 status = 0;
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u32 index = 0;
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
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usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
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usdhc_cfg[0].max_bus_width = 4;
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usdhc_cfg[1].max_bus_width = 4;
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for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
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switch (index) {
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case 0:
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imx_iomux_v3_setup_multiple_pads(
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usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
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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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usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
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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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index + 1, CONFIG_SYS_FSL_USDHC_NUM);
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return status;
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}
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status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
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}
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return status;
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}
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#endif
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#ifdef CONFIG_MXC_SPI
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iomux_v3_cfg_t const ecspi1_pads[] = {
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/* SS1 */
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MX6_PAD_EIM_D19__GPIO_3_19 | MUX_PAD_CTRL(SPI_PAD_CTRL),
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MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
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MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
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MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
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};
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void setup_spi(void)
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{
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imx_iomux_v3_setup_multiple_pads(ecspi1_pads,
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ARRAY_SIZE(ecspi1_pads));
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}
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#endif
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int board_phy_config(struct phy_device *phydev)
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{
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/* min rx data delay */
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ksz9021_phy_extended_write(phydev,
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MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0);
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/* min tx data delay */
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ksz9021_phy_extended_write(phydev,
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MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0);
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/* max rx/tx clock delay, min rx/tx control */
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ksz9021_phy_extended_write(phydev,
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MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0);
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if (phydev->drv->config)
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phydev->drv->config(phydev);
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return 0;
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}
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int board_eth_init(bd_t *bis)
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{
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uint32_t base = IMX_FEC_BASE;
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struct mii_dev *bus = NULL;
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struct phy_device *phydev = NULL;
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int ret;
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setup_iomux_enet();
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#ifdef CONFIG_FEC_MXC
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bus = fec_get_miibus(base, -1);
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if (!bus)
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return 0;
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/* scan phy 4,5,6,7 */
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phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
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if (!phydev) {
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free(bus);
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return 0;
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}
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printf("using phy at %d\n", phydev->addr);
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ret = fec_probe(bis, -1, base, bus, phydev);
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if (ret) {
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printf("FEC MXC: %s:failed\n", __func__);
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free(phydev);
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free(bus);
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}
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#endif
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return 0;
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}
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static void setup_buttons(void)
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{
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imx_iomux_v3_setup_multiple_pads(button_pads,
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ARRAY_SIZE(button_pads));
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}
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#ifdef CONFIG_CMD_SATA
|
|
|
|
int setup_sata(void)
|
|
{
|
|
struct iomuxc_base_regs *const iomuxc_regs
|
|
= (struct iomuxc_base_regs *) IOMUXC_BASE_ADDR;
|
|
int ret = enable_sata_clock();
|
|
if (ret)
|
|
return ret;
|
|
|
|
clrsetbits_le32(&iomuxc_regs->gpr[13],
|
|
IOMUXC_GPR13_SATA_MASK,
|
|
IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P0DB
|
|
|IOMUXC_GPR13_SATA_PHY_7_SATA2M
|
|
|IOMUXC_GPR13_SATA_SPEED_3G
|
|
|(3<<IOMUXC_GPR13_SATA_PHY_6_SHIFT)
|
|
|IOMUXC_GPR13_SATA_SATA_PHY_5_SS_DISABLED
|
|
|IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_9_16
|
|
|IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P00_DB
|
|
|IOMUXC_GPR13_SATA_PHY_2_TX_1P104V
|
|
|IOMUXC_GPR13_SATA_PHY_1_SLOW);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_VIDEO_IPUV3)
|
|
|
|
static iomux_v3_cfg_t const backlight_pads[] = {
|
|
/* Backlight on RGB connector: J15 */
|
|
MX6_PAD_SD1_DAT3__GPIO_1_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
#define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21)
|
|
|
|
/* Backlight on LVDS connector: J6 */
|
|
MX6_PAD_SD1_CMD__GPIO_1_18 | MUX_PAD_CTRL(NO_PAD_CTRL),
|
|
#define LVDS_BACKLIGHT_GP IMX_GPIO_NR(1, 18)
|
|
};
|
|
|
|
static iomux_v3_cfg_t const rgb_pads[] = {
|
|
MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
|
|
MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
|
|
MX6_PAD_DI0_PIN2__IPU1_DI0_PIN2,
|
|
MX6_PAD_DI0_PIN3__IPU1_DI0_PIN3,
|
|
MX6_PAD_DI0_PIN4__GPIO_4_20,
|
|
MX6_PAD_DISP0_DAT0__IPU1_DISP0_DAT_0,
|
|
MX6_PAD_DISP0_DAT1__IPU1_DISP0_DAT_1,
|
|
MX6_PAD_DISP0_DAT2__IPU1_DISP0_DAT_2,
|
|
MX6_PAD_DISP0_DAT3__IPU1_DISP0_DAT_3,
|
|
MX6_PAD_DISP0_DAT4__IPU1_DISP0_DAT_4,
|
|
MX6_PAD_DISP0_DAT5__IPU1_DISP0_DAT_5,
|
|
MX6_PAD_DISP0_DAT6__IPU1_DISP0_DAT_6,
|
|
MX6_PAD_DISP0_DAT7__IPU1_DISP0_DAT_7,
|
|
MX6_PAD_DISP0_DAT8__IPU1_DISP0_DAT_8,
|
|
MX6_PAD_DISP0_DAT9__IPU1_DISP0_DAT_9,
|
|
MX6_PAD_DISP0_DAT10__IPU1_DISP0_DAT_10,
|
|
MX6_PAD_DISP0_DAT11__IPU1_DISP0_DAT_11,
|
|
MX6_PAD_DISP0_DAT12__IPU1_DISP0_DAT_12,
|
|
MX6_PAD_DISP0_DAT13__IPU1_DISP0_DAT_13,
|
|
MX6_PAD_DISP0_DAT14__IPU1_DISP0_DAT_14,
|
|
MX6_PAD_DISP0_DAT15__IPU1_DISP0_DAT_15,
|
|
MX6_PAD_DISP0_DAT16__IPU1_DISP0_DAT_16,
|
|
MX6_PAD_DISP0_DAT17__IPU1_DISP0_DAT_17,
|
|
MX6_PAD_DISP0_DAT18__IPU1_DISP0_DAT_18,
|
|
MX6_PAD_DISP0_DAT19__IPU1_DISP0_DAT_19,
|
|
MX6_PAD_DISP0_DAT20__IPU1_DISP0_DAT_20,
|
|
MX6_PAD_DISP0_DAT21__IPU1_DISP0_DAT_21,
|
|
MX6_PAD_DISP0_DAT22__IPU1_DISP0_DAT_22,
|
|
MX6_PAD_DISP0_DAT23__IPU1_DISP0_DAT_23,
|
|
};
|
|
|
|
struct display_info_t {
|
|
int bus;
|
|
int addr;
|
|
int pixfmt;
|
|
int (*detect)(struct display_info_t const *dev);
|
|
void (*enable)(struct display_info_t const *dev);
|
|
struct fb_videomode mode;
|
|
};
|
|
|
|
|
|
static int detect_hdmi(struct display_info_t const *dev)
|
|
{
|
|
struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
|
|
return readb(&hdmi->phy_stat0) & HDMI_DVI_STAT;
|
|
}
|
|
|
|
static void do_enable_hdmi(struct display_info_t const *dev)
|
|
{
|
|
imx_enable_hdmi_phy();
|
|
}
|
|
|
|
static int detect_i2c(struct display_info_t const *dev)
|
|
{
|
|
return ((0 == i2c_set_bus_num(dev->bus))
|
|
&&
|
|
(0 == i2c_probe(dev->addr)));
|
|
}
|
|
|
|
static void enable_lvds(struct display_info_t const *dev)
|
|
{
|
|
struct iomuxc *iomux = (struct iomuxc *)
|
|
IOMUXC_BASE_ADDR;
|
|
u32 reg = readl(&iomux->gpr[2]);
|
|
reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT;
|
|
writel(reg, &iomux->gpr[2]);
|
|
gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
|
|
}
|
|
|
|
static void enable_rgb(struct display_info_t const *dev)
|
|
{
|
|
imx_iomux_v3_setup_multiple_pads(
|
|
rgb_pads,
|
|
ARRAY_SIZE(rgb_pads));
|
|
gpio_direction_output(RGB_BACKLIGHT_GP, 1);
|
|
}
|
|
|
|
static struct display_info_t const displays[] = {{
|
|
.bus = -1,
|
|
.addr = 0,
|
|
.pixfmt = IPU_PIX_FMT_RGB24,
|
|
.detect = detect_hdmi,
|
|
.enable = do_enable_hdmi,
|
|
.mode = {
|
|
.name = "HDMI",
|
|
.refresh = 60,
|
|
.xres = 1024,
|
|
.yres = 768,
|
|
.pixclock = 15385,
|
|
.left_margin = 220,
|
|
.right_margin = 40,
|
|
.upper_margin = 21,
|
|
.lower_margin = 7,
|
|
.hsync_len = 60,
|
|
.vsync_len = 10,
|
|
.sync = FB_SYNC_EXT,
|
|
.vmode = FB_VMODE_NONINTERLACED
|
|
} }, {
|
|
.bus = 2,
|
|
.addr = 0x4,
|
|
.pixfmt = IPU_PIX_FMT_LVDS666,
|
|
.detect = detect_i2c,
|
|
.enable = enable_lvds,
|
|
.mode = {
|
|
.name = "Hannstar-XGA",
|
|
.refresh = 60,
|
|
.xres = 1024,
|
|
.yres = 768,
|
|
.pixclock = 15385,
|
|
.left_margin = 220,
|
|
.right_margin = 40,
|
|
.upper_margin = 21,
|
|
.lower_margin = 7,
|
|
.hsync_len = 60,
|
|
.vsync_len = 10,
|
|
.sync = FB_SYNC_EXT,
|
|
.vmode = FB_VMODE_NONINTERLACED
|
|
} }, {
|
|
.bus = 2,
|
|
.addr = 0x38,
|
|
.pixfmt = IPU_PIX_FMT_LVDS666,
|
|
.detect = detect_i2c,
|
|
.enable = enable_lvds,
|
|
.mode = {
|
|
.name = "wsvga-lvds",
|
|
.refresh = 60,
|
|
.xres = 1024,
|
|
.yres = 600,
|
|
.pixclock = 15385,
|
|
.left_margin = 220,
|
|
.right_margin = 40,
|
|
.upper_margin = 21,
|
|
.lower_margin = 7,
|
|
.hsync_len = 60,
|
|
.vsync_len = 10,
|
|
.sync = FB_SYNC_EXT,
|
|
.vmode = FB_VMODE_NONINTERLACED
|
|
} }, {
|
|
.bus = 2,
|
|
.addr = 0x48,
|
|
.pixfmt = IPU_PIX_FMT_RGB666,
|
|
.detect = detect_i2c,
|
|
.enable = enable_rgb,
|
|
.mode = {
|
|
.name = "wvga-rgb",
|
|
.refresh = 57,
|
|
.xres = 800,
|
|
.yres = 480,
|
|
.pixclock = 37037,
|
|
.left_margin = 40,
|
|
.right_margin = 60,
|
|
.upper_margin = 10,
|
|
.lower_margin = 10,
|
|
.hsync_len = 20,
|
|
.vsync_len = 10,
|
|
.sync = 0,
|
|
.vmode = FB_VMODE_NONINTERLACED
|
|
} } };
|
|
|
|
int board_video_skip(void)
|
|
{
|
|
int i;
|
|
int ret;
|
|
char const *panel = getenv("panel");
|
|
if (!panel) {
|
|
for (i = 0; i < ARRAY_SIZE(displays); i++) {
|
|
struct display_info_t const *dev = displays+i;
|
|
if (dev->detect(dev)) {
|
|
panel = dev->mode.name;
|
|
printf("auto-detected panel %s\n", panel);
|
|
break;
|
|
}
|
|
}
|
|
if (!panel) {
|
|
panel = displays[0].mode.name;
|
|
printf("No panel detected: default to %s\n", panel);
|
|
}
|
|
} else {
|
|
for (i = 0; i < ARRAY_SIZE(displays); i++) {
|
|
if (!strcmp(panel, displays[i].mode.name))
|
|
break;
|
|
}
|
|
}
|
|
if (i < ARRAY_SIZE(displays)) {
|
|
ret = ipuv3_fb_init(&displays[i].mode, 0,
|
|
displays[i].pixfmt);
|
|
if (!ret) {
|
|
displays[i].enable(displays+i);
|
|
printf("Display: %s (%ux%u)\n",
|
|
displays[i].mode.name,
|
|
displays[i].mode.xres,
|
|
displays[i].mode.yres);
|
|
} else
|
|
printf("LCD %s cannot be configured: %d\n",
|
|
displays[i].mode.name, ret);
|
|
} else {
|
|
printf("unsupported panel %s\n", panel);
|
|
ret = -EINVAL;
|
|
}
|
|
return (0 != ret);
|
|
}
|
|
|
|
static void setup_display(void)
|
|
{
|
|
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
|
|
struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
|
|
struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
|
|
int reg;
|
|
|
|
enable_ipu_clock();
|
|
imx_setup_hdmi();
|
|
/* Turn on LDB0,IPU,IPU DI0 clocks */
|
|
reg = __raw_readl(&mxc_ccm->CCGR3);
|
|
reg |= MXC_CCM_CCGR3_LDB_DI0_MASK;
|
|
writel(reg, &mxc_ccm->CCGR3);
|
|
|
|
/* set PFD1_FRAC to 0x13 == 455 MHz (480*18)/0x13 */
|
|
writel(ANATOP_PFD_480_PFD1_FRAC_MASK, &anatop->pfd_480_clr);
|
|
writel(0x13<<ANATOP_PFD_480_PFD1_FRAC_SHIFT, &anatop->pfd_480_set);
|
|
|
|
/* set LDB0, LDB1 clk select to 011/011 */
|
|
reg = readl(&mxc_ccm->cs2cdr);
|
|
reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
|
|
|MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
|
|
reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
|
|
|(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
|
|
writel(reg, &mxc_ccm->cs2cdr);
|
|
|
|
reg = readl(&mxc_ccm->cscmr2);
|
|
reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
|
|
writel(reg, &mxc_ccm->cscmr2);
|
|
|
|
reg = readl(&mxc_ccm->chsccdr);
|
|
reg |= (CHSCCDR_CLK_SEL_LDB_DI0
|
|
<<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
|
|
writel(reg, &mxc_ccm->chsccdr);
|
|
|
|
reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
|
|
|IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
|
|
|IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
|
|
|IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
|
|
|IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
|
|
|IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
|
|
|IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
|
|
|IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
|
|
|IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
|
|
writel(reg, &iomux->gpr[2]);
|
|
|
|
reg = readl(&iomux->gpr[3]);
|
|
reg = (reg & ~IOMUXC_GPR3_LVDS0_MUX_CTL_MASK)
|
|
| (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
|
|
<<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
|
|
writel(reg, &iomux->gpr[3]);
|
|
|
|
/* backlights off until needed */
|
|
imx_iomux_v3_setup_multiple_pads(backlight_pads,
|
|
ARRAY_SIZE(backlight_pads));
|
|
gpio_direction_input(LVDS_BACKLIGHT_GP);
|
|
gpio_direction_input(RGB_BACKLIGHT_GP);
|
|
}
|
|
#endif
|
|
|
|
int board_early_init_f(void)
|
|
{
|
|
setup_iomux_uart();
|
|
|
|
/* Disable wl1271 For Nitrogen6w */
|
|
gpio_direction_input(WL12XX_WL_IRQ_GP);
|
|
gpio_direction_output(WL12XX_WL_ENABLE_GP, 0);
|
|
gpio_direction_output(WL12XX_BT_ENABLE_GP, 0);
|
|
|
|
imx_iomux_v3_setup_multiple_pads(wl12xx_pads, ARRAY_SIZE(wl12xx_pads));
|
|
setup_buttons();
|
|
|
|
#if defined(CONFIG_VIDEO_IPUV3)
|
|
setup_display();
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Do not overwrite the console
|
|
* Use always serial for U-Boot console
|
|
*/
|
|
int overwrite_console(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
/* address of boot parameters */
|
|
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
|
|
|
|
#ifdef CONFIG_MXC_SPI
|
|
setup_spi();
|
|
#endif
|
|
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);
|
|
|
|
#ifdef CONFIG_CMD_SATA
|
|
setup_sata();
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
int checkboard(void)
|
|
{
|
|
if (gpio_get_value(WL12XX_WL_IRQ_GP))
|
|
puts("Board: Nitrogen6X\n");
|
|
else
|
|
puts("Board: SABRE Lite\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct button_key {
|
|
char const *name;
|
|
unsigned gpnum;
|
|
char ident;
|
|
};
|
|
|
|
static struct button_key const buttons[] = {
|
|
{"back", IMX_GPIO_NR(2, 2), 'B'},
|
|
{"home", IMX_GPIO_NR(2, 4), 'H'},
|
|
{"menu", IMX_GPIO_NR(2, 1), 'M'},
|
|
{"search", IMX_GPIO_NR(2, 3), 'S'},
|
|
{"volup", IMX_GPIO_NR(7, 13), 'V'},
|
|
{"voldown", IMX_GPIO_NR(4, 5), 'v'},
|
|
};
|
|
|
|
/*
|
|
* generate a null-terminated string containing the buttons pressed
|
|
* returns number of keys pressed
|
|
*/
|
|
static int read_keys(char *buf)
|
|
{
|
|
int i, numpressed = 0;
|
|
for (i = 0; i < ARRAY_SIZE(buttons); i++) {
|
|
if (!gpio_get_value(buttons[i].gpnum))
|
|
buf[numpressed++] = buttons[i].ident;
|
|
}
|
|
buf[numpressed] = '\0';
|
|
return numpressed;
|
|
}
|
|
|
|
static int do_kbd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
char envvalue[ARRAY_SIZE(buttons)+1];
|
|
int numpressed = read_keys(envvalue);
|
|
setenv("keybd", envvalue);
|
|
return numpressed == 0;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
kbd, 1, 1, do_kbd,
|
|
"Tests for keypresses, sets 'keybd' environment variable",
|
|
"Returns 0 (true) to shell if key is pressed."
|
|
);
|
|
|
|
#ifdef CONFIG_PREBOOT
|
|
static char const kbd_magic_prefix[] = "key_magic";
|
|
static char const kbd_command_prefix[] = "key_cmd";
|
|
|
|
static void preboot_keys(void)
|
|
{
|
|
int numpressed;
|
|
char keypress[ARRAY_SIZE(buttons)+1];
|
|
numpressed = read_keys(keypress);
|
|
if (numpressed) {
|
|
char *kbd_magic_keys = getenv("magic_keys");
|
|
char *suffix;
|
|
/*
|
|
* loop over all magic keys
|
|
*/
|
|
for (suffix = kbd_magic_keys; *suffix; ++suffix) {
|
|
char *keys;
|
|
char magic[sizeof(kbd_magic_prefix) + 1];
|
|
sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
|
|
keys = getenv(magic);
|
|
if (keys) {
|
|
if (!strcmp(keys, keypress))
|
|
break;
|
|
}
|
|
}
|
|
if (*suffix) {
|
|
char cmd_name[sizeof(kbd_command_prefix) + 1];
|
|
char *cmd;
|
|
sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
|
|
cmd = getenv(cmd_name);
|
|
if (cmd) {
|
|
setenv("preboot", cmd);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMD_BMODE
|
|
static const struct boot_mode board_boot_modes[] = {
|
|
/* 4 bit bus width */
|
|
{"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
|
|
{"mmc1", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
|
|
{NULL, 0},
|
|
};
|
|
#endif
|
|
|
|
int misc_init_r(void)
|
|
{
|
|
#ifdef CONFIG_PREBOOT
|
|
preboot_keys();
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMD_BMODE
|
|
add_board_boot_modes(board_boot_modes);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|