mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-21 01:18:52 +09:00
![Benoît Thébaudeau](/assets/img/avatar_default.png)
PUE requires PKE to mean something, as do pull values with PUE, so do not compell users to explicitly use PKE and PUE everywhere. This is also what is done on Linux and what has already been done for i.MX51. By the way, remove some unused pad control definitions. There is no change of behavior. Note that SPI_PAD_CTRL was defined by several boards with a pull value, but without PKE or PUE, which means that no pull was actually enabled in the pad. This might be a bug in those boards, but this patch does not change the behavior, so it just removes the meaningless pull value from those definitions. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
888 lines
24 KiB
C
888 lines
24 KiB
C
/*
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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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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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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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gpio_direction_output(CONFIG_SF_DEFAULT_CS, 1);
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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();
|
|
|
|
#ifdef CONFIG_FEC_MXC
|
|
bus = fec_get_miibus(base, -1);
|
|
if (!bus)
|
|
return 0;
|
|
/* scan phy 4,5,6,7 */
|
|
phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
|
|
if (!phydev) {
|
|
free(bus);
|
|
return 0;
|
|
}
|
|
printf("using phy at %d\n", phydev->addr);
|
|
ret = fec_probe(bis, -1, base, bus, phydev);
|
|
if (ret) {
|
|
printf("FEC MXC: %s:failed\n", __func__);
|
|
free(phydev);
|
|
free(bus);
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static void setup_buttons(void)
|
|
{
|
|
imx_iomux_v3_setup_multiple_pads(button_pads,
|
|
ARRAY_SIZE(button_pads));
|
|
}
|
|
|
|
#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_PHY_HPD;
|
|
}
|
|
|
|
static void enable_hdmi(struct display_info_t const *dev)
|
|
{
|
|
struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
|
|
u8 reg;
|
|
printf("%s: setup HDMI monitor\n", __func__);
|
|
reg = readb(&hdmi->phy_conf0);
|
|
reg |= HDMI_PHY_CONF0_PDZ_MASK;
|
|
writeb(reg, &hdmi->phy_conf0);
|
|
|
|
udelay(3000);
|
|
reg |= HDMI_PHY_CONF0_ENTMDS_MASK;
|
|
writeb(reg, &hdmi->phy_conf0);
|
|
udelay(3000);
|
|
reg |= HDMI_PHY_CONF0_GEN2_TXPWRON_MASK;
|
|
writeb(reg, &hdmi->phy_conf0);
|
|
writeb(HDMI_MC_PHYRSTZ_ASSERT, &hdmi->mc_phyrstz);
|
|
}
|
|
|
|
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 = 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;
|
|
struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
|
|
|
|
int reg;
|
|
|
|
/* Turn on LDB0,IPU,IPU DI0 clocks */
|
|
reg = __raw_readl(&mxc_ccm->CCGR3);
|
|
reg |= MXC_CCM_CCGR3_IPU1_IPU_DI0_OFFSET
|
|
|MXC_CCM_CCGR3_LDB_DI0_MASK;
|
|
writel(reg, &mxc_ccm->CCGR3);
|
|
|
|
/* Turn on HDMI PHY clock */
|
|
reg = __raw_readl(&mxc_ccm->CCGR2);
|
|
reg |= MXC_CCM_CCGR2_HDMI_TX_IAHBCLK_MASK
|
|
|MXC_CCM_CCGR2_HDMI_TX_ISFRCLK_MASK;
|
|
writel(reg, &mxc_ccm->CCGR2);
|
|
|
|
/* clear HDMI PHY reset */
|
|
writeb(HDMI_MC_PHYRSTZ_DEASSERT, &hdmi->mc_phyrstz);
|
|
|
|
/* 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 &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK
|
|
|MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK
|
|
|MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
|
|
reg |= (CHSCCDR_CLK_SEL_LDB_DI0
|
|
<<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET)
|
|
|(CHSCCDR_PODF_DIVIDE_BY_3
|
|
<<MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET)
|
|
|(CHSCCDR_IPU_PRE_CLK_540M_PFD
|
|
<<MXC_CCM_CHSCCDR_IPU1_DI0_PRE_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;
|
|
}
|