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u-boot-brain/board/freescale/mx6qsabreauto/mx6qsabreauto.c
Fabio Estevam cfb37772a1 mx6qsabreauto: Fix the EIM clock for the mx6qp variant 
On the MX6Q the aclk_eim_slow_podf field is '1' after POR, while on the
MX6DQP it is '3'.

This makes the EIM clock to be only 66MHz on the mx6qp variant, instead of
132 MHz.

Instead of relying on the POR values for the CSMR1 register, make sure to
manually configure the clk_eim_slow_sel field as '00' so that EIM clock is
derived from AXI clock and the aclk_eim_slow_podf field as '1' so that EIM
clock can be AXI clock divided by 2.

This way a consistent EIM clock frequency is configured for all the mx6
variants.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
2017-01-02 17:12:37 +01:00

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/*
* Copyright (C) 2012 Freescale Semiconductor, Inc.
*
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#include <linux/errno.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/mxc_i2c.h>
#include <asm/imx-common/boot_mode.h>
#include <asm/imx-common/spi.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/arch/sys_proto.h>
#include <i2c.h>
#include <asm/arch/mxc_hdmi.h>
#include <asm/imx-common/video.h>
#include <asm/arch/crm_regs.h>
#include <pca953x.h>
#include <power/pmic.h>
#include <power/pfuze100_pmic.h>
#include "../common/pfuze.h"
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
PAD_CTL_ODE | PAD_CTL_SRE_FAST)
#define GPMI_PAD_CTRL0 (PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_100K_UP)
#define GPMI_PAD_CTRL1 (PAD_CTL_DSE_40ohm | PAD_CTL_SPEED_MED | \
PAD_CTL_SRE_FAST)
#define GPMI_PAD_CTRL2 (GPMI_PAD_CTRL0 | GPMI_PAD_CTRL1)
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
#define WEIM_NOR_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#define I2C_PMIC 1
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
static iomux_v3_cfg_t const uart4_pads[] = {
MX6_PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
};
static iomux_v3_cfg_t const enet_pads[] = {
MX6_PAD_KEY_COL1__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_KEY_COL2__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
};
/* I2C2 PMIC, iPod, Tuner, Codec, Touch, HDMI EDID, MIPI CSI2 card */
static struct i2c_pads_info i2c_pad_info1 = {
.scl = {
.i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | PC,
.gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | PC,
.gp = IMX_GPIO_NR(2, 30)
},
.sda = {
.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
.gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | PC,
.gp = IMX_GPIO_NR(4, 13)
}
};
#ifndef CONFIG_SYS_FLASH_CFI
/*
* I2C3 MLB, Port Expanders (A, B, C), Video ADC, Light Sensor,
* Compass Sensor, Accelerometer, Res Touch
*/
static struct i2c_pads_info i2c_pad_info2 = {
.scl = {
.i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | PC,
.gpio_mode = MX6_PAD_GPIO_3__GPIO1_IO03 | PC,
.gp = IMX_GPIO_NR(1, 3)
},
.sda = {
.i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
.gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC,
.gp = IMX_GPIO_NR(3, 18)
}
};
#endif
static iomux_v3_cfg_t const i2c3_pads[] = {
MX6_PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static iomux_v3_cfg_t const port_exp[] = {
MX6_PAD_SD2_DAT0__GPIO1_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
/*Define for building port exp gpio, pin starts from 0*/
#define PORTEXP_IO_NR(chip, pin) \
((chip << 5) + pin)
/*Get the chip addr from a ioexp gpio*/
#define PORTEXP_IO_TO_CHIP(gpio_nr) \
(gpio_nr >> 5)
/*Get the pin number from a ioexp gpio*/
#define PORTEXP_IO_TO_PIN(gpio_nr) \
(gpio_nr & 0x1f)
static int port_exp_direction_output(unsigned gpio, int value)
{
int ret;
i2c_set_bus_num(2);
ret = i2c_probe(PORTEXP_IO_TO_CHIP(gpio));
if (ret)
return ret;
ret = pca953x_set_dir(PORTEXP_IO_TO_CHIP(gpio),
(1 << PORTEXP_IO_TO_PIN(gpio)),
(PCA953X_DIR_OUT << PORTEXP_IO_TO_PIN(gpio)));
if (ret)
return ret;
ret = pca953x_set_val(PORTEXP_IO_TO_CHIP(gpio),
(1 << PORTEXP_IO_TO_PIN(gpio)),
(value << PORTEXP_IO_TO_PIN(gpio)));
if (ret)
return ret;
return 0;
}
static iomux_v3_cfg_t const eimnor_pads[] = {
MX6_PAD_EIM_D16__EIM_DATA16 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D17__EIM_DATA17 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D18__EIM_DATA18 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D19__EIM_DATA19 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D20__EIM_DATA20 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D21__EIM_DATA21 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D22__EIM_DATA22 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D23__EIM_DATA23 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D24__EIM_DATA24 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D25__EIM_DATA25 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D26__EIM_DATA26 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D27__EIM_DATA27 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D28__EIM_DATA28 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D29__EIM_DATA29 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D30__EIM_DATA30 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_D31__EIM_DATA31 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA0__EIM_AD00 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA1__EIM_AD01 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA2__EIM_AD02 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA3__EIM_AD03 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA4__EIM_AD04 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA5__EIM_AD05 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA6__EIM_AD06 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA7__EIM_AD07 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA8__EIM_AD08 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA9__EIM_AD09 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA10__EIM_AD10 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA11__EIM_AD11 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL) ,
MX6_PAD_EIM_DA12__EIM_AD12 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA13__EIM_AD13 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA14__EIM_AD14 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_DA15__EIM_AD15 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_A16__EIM_ADDR16 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_A17__EIM_ADDR17 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_A18__EIM_ADDR18 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_A19__EIM_ADDR19 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_A20__EIM_ADDR20 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_A21__EIM_ADDR21 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_A22__EIM_ADDR22 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_A23__EIM_ADDR23 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL),
MX6_PAD_EIM_OE__EIM_OE_B | MUX_PAD_CTRL(NO_PAD_CTRL),
MX6_PAD_EIM_RW__EIM_RW | MUX_PAD_CTRL(NO_PAD_CTRL),
MX6_PAD_EIM_CS0__EIM_CS0_B | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static void eimnor_cs_setup(void)
{
struct weim *weim_regs = (struct weim *)WEIM_BASE_ADDR;
writel(0x00020181, &weim_regs->cs0gcr1);
writel(0x00000001, &weim_regs->cs0gcr2);
writel(0x0a020000, &weim_regs->cs0rcr1);
writel(0x0000c000, &weim_regs->cs0rcr2);
writel(0x0804a240, &weim_regs->cs0wcr1);
writel(0x00000120, &weim_regs->wcr);
set_chipselect_size(CS0_128);
}
static void eim_clk_setup(void)
{
struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
int cscmr1, ccgr6;
/* Turn off EIM clock */
ccgr6 = readl(&imx_ccm->CCGR6);
ccgr6 &= ~(0x3 << 10);
writel(ccgr6, &imx_ccm->CCGR6);
/*
* Configure clk_eim_slow_sel = 00 --> derive clock from AXI clk root
* and aclk_eim_slow_podf = 01 --> divide by 2
* so that we can have EIM at the maximum clock of 132MHz
*/
cscmr1 = readl(&imx_ccm->cscmr1);
cscmr1 &= ~(MXC_CCM_CSCMR1_ACLK_EMI_SLOW_MASK |
MXC_CCM_CSCMR1_ACLK_EMI_SLOW_PODF_MASK);
cscmr1 |= (1 << MXC_CCM_CSCMR1_ACLK_EMI_SLOW_PODF_OFFSET);
writel(cscmr1, &imx_ccm->cscmr1);
/* Turn on EIM clock */
ccgr6 |= (0x3 << 10);
writel(ccgr6, &imx_ccm->CCGR6);
}
static void setup_iomux_eimnor(void)
{
imx_iomux_v3_setup_multiple_pads(eimnor_pads, ARRAY_SIZE(eimnor_pads));
gpio_direction_output(IMX_GPIO_NR(5, 4), 0);
eimnor_cs_setup();
}
static void setup_iomux_enet(void)
{
imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
}
static iomux_v3_cfg_t const usdhc3_pads[] = {
MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_GPIO_18__SD3_VSELECT | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
}
#ifdef CONFIG_FSL_ESDHC
static struct fsl_esdhc_cfg usdhc_cfg[1] = {
{USDHC3_BASE_ADDR},
};
int board_mmc_getcd(struct mmc *mmc)
{
gpio_direction_input(IMX_GPIO_NR(6, 15));
return !gpio_get_value(IMX_GPIO_NR(6, 15));
}
int board_mmc_init(bd_t *bis)
{
imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
}
#endif
#ifdef CONFIG_NAND_MXS
static iomux_v3_cfg_t gpmi_pads[] = {
MX6_PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(GPMI_PAD_CTRL0),
MX6_PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
MX6_PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(GPMI_PAD_CTRL1),
};
static void setup_gpmi_nand(void)
{
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
/* config gpmi nand iomux */
imx_iomux_v3_setup_multiple_pads(gpmi_pads, ARRAY_SIZE(gpmi_pads));
setup_gpmi_io_clk((MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
MXC_CCM_CS2CDR_ENFC_CLK_SEL(3)));
/* enable apbh clock gating */
setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
}
#endif
static void setup_fec(void)
{
if (is_mx6dqp()) {
/*
* select ENET MAC0 TX clock from PLL
*/
imx_iomux_set_gpr_register(5, 9, 1, 1);
enable_fec_anatop_clock(0, ENET_125MHZ);
}
setup_iomux_enet();
}
int board_eth_init(bd_t *bis)
{
setup_fec();
return cpu_eth_init(bis);
}
#define BOARD_REV_B 0x200
#define BOARD_REV_A 0x100
static int mx6sabre_rev(void)
{
/*
* Get Board ID information from OCOTP_GP1[15:8]
* i.MX6Q ARD RevA: 0x01
* i.MX6Q ARD RevB: 0x02
*/
struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
struct fuse_bank *bank = &ocotp->bank[4];
struct fuse_bank4_regs *fuse =
(struct fuse_bank4_regs *)bank->fuse_regs;
int reg = readl(&fuse->gp1);
int ret;
switch (reg >> 8 & 0x0F) {
case 0x02:
ret = BOARD_REV_B;
break;
case 0x01:
default:
ret = BOARD_REV_A;
break;
}
return ret;
}
u32 get_board_rev(void)
{
int rev = mx6sabre_rev();
return (get_cpu_rev() & ~(0xF << 8)) | rev;
}
#if defined(CONFIG_VIDEO_IPUV3)
static void disable_lvds(struct display_info_t const *dev)
{
struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
clrbits_le32(&iomux->gpr[2],
IOMUXC_GPR2_LVDS_CH0_MODE_MASK |
IOMUXC_GPR2_LVDS_CH1_MODE_MASK);
}
static void do_enable_hdmi(struct display_info_t const *dev)
{
disable_lvds(dev);
imx_enable_hdmi_phy();
}
struct display_info_t const displays[] = {{
.bus = -1,
.addr = 0,
.pixfmt = IPU_PIX_FMT_RGB666,
.detect = NULL,
.enable = NULL,
.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 = -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,
} } };
size_t display_count = ARRAY_SIZE(displays);
iomux_v3_cfg_t const backlight_pads[] = {
MX6_PAD_SD4_DAT1__GPIO2_IO09 | MUX_PAD_CTRL(ENET_PAD_CTRL),
};
static void setup_iomux_backlight(void)
{
gpio_direction_output(IMX_GPIO_NR(2, 9), 1);
imx_iomux_v3_setup_multiple_pads(backlight_pads,
ARRAY_SIZE(backlight_pads));
}
static void setup_display(void)
{
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
int reg;
setup_iomux_backlight();
enable_ipu_clock();
imx_setup_hdmi();
/* Turn on LDB_DI0 and LDB_DI1 clocks */
reg = readl(&mxc_ccm->CCGR3);
reg |= MXC_CCM_CCGR3_LDB_DI0_MASK | MXC_CCM_CCGR3_LDB_DI1_MASK;
writel(reg, &mxc_ccm->CCGR3);
/* Set LDB_DI0 and LDB_DI1 clk select to 3b'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 | MXC_CCM_CSCMR2_LDB_DI1_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);
reg |= (CHSCCDR_CLK_SEL_LDB_DI0 <<
MXC_CCM_CHSCCDR_IPU1_DI1_CLK_SEL_OFFSET);
writel(reg, &mxc_ccm->chsccdr);
reg = IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_LOW |
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_CH0_MODE_ENABLED_DI0 |
IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED;
writel(reg, &iomux->gpr[2]);
reg = readl(&iomux->gpr[3]);
reg &= ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK |
IOMUXC_GPR3_HDMI_MUX_CTL_MASK);
reg |= (IOMUXC_GPR3_MUX_SRC_IPU1_DI0 <<
IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET) |
(IOMUXC_GPR3_MUX_SRC_IPU1_DI0 <<
IOMUXC_GPR3_HDMI_MUX_CTL_OFFSET);
writel(reg, &iomux->gpr[3]);
}
#endif /* CONFIG_VIDEO_IPUV3 */
/*
* Do not overwrite the console
* Use always serial for U-Boot console
*/
int overwrite_console(void)
{
return 1;
}
int board_early_init_f(void)
{
setup_iomux_uart();
#ifdef CONFIG_NAND_MXS
setup_gpmi_nand();
#endif
eim_clk_setup();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
/* I2C 2 and 3 setup - I2C 3 hw mux with EIM */
setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
/* I2C 3 Steer */
gpio_direction_output(IMX_GPIO_NR(5, 4), 1);
imx_iomux_v3_setup_multiple_pads(i2c3_pads, ARRAY_SIZE(i2c3_pads));
#ifndef CONFIG_SYS_FLASH_CFI
setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
#endif
gpio_direction_output(IMX_GPIO_NR(1, 15), 1);
imx_iomux_v3_setup_multiple_pads(port_exp, ARRAY_SIZE(port_exp));
#ifdef CONFIG_VIDEO_IPUV3
setup_display();
#endif
setup_iomux_eimnor();
return 0;
}
#ifdef CONFIG_MXC_SPI
int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 9)) : -1;
}
#endif
int power_init_board(void)
{
struct pmic *p;
unsigned int value;
p = pfuze_common_init(I2C_PMIC);
if (!p)
return -ENODEV;
if (is_mx6dqp()) {
/* set SW2 staby volatage 0.975V*/
pmic_reg_read(p, PFUZE100_SW2STBY, &value);
value &= ~0x3f;
value |= 0x17;
pmic_reg_write(p, PFUZE100_SW2STBY, value);
}
return pfuze_mode_init(p, APS_PFM);
}
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */
{"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
{NULL, 0},
};
#endif
int board_late_init(void)
{
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
setenv("board_name", "SABREAUTO");
if (is_mx6dqp())
setenv("board_rev", "MX6QP");
else if (is_mx6dq())
setenv("board_rev", "MX6Q");
else if (is_mx6sdl())
setenv("board_rev", "MX6DL");
#endif
return 0;
}
int checkboard(void)
{
int rev = mx6sabre_rev();
char *revname;
switch (rev) {
case BOARD_REV_B:
revname = "B";
break;
case BOARD_REV_A:
default:
revname = "A";
break;
}
printf("Board: MX6Q-Sabreauto rev%s\n", revname);
return 0;
}
#ifdef CONFIG_USB_EHCI_MX6
#define USB_HOST1_PWR PORTEXP_IO_NR(0x32, 7)
#define USB_OTG_PWR PORTEXP_IO_NR(0x34, 1)
iomux_v3_cfg_t const usb_otg_pads[] = {
MX6_PAD_ENET_RX_ER__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
};
int board_ehci_hcd_init(int port)
{
switch (port) {
case 0:
imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
ARRAY_SIZE(usb_otg_pads));
/*
* Set daisy chain for otg_pin_id on 6q.
* For 6dl, this bit is reserved.
*/
imx_iomux_set_gpr_register(1, 13, 1, 0);
break;
case 1:
break;
default:
printf("MXC USB port %d not yet supported\n", port);
return -EINVAL;
}
return 0;
}
int board_ehci_power(int port, int on)
{
switch (port) {
case 0:
if (on)
port_exp_direction_output(USB_OTG_PWR, 1);
else
port_exp_direction_output(USB_OTG_PWR, 0);
break;
case 1:
if (on)
port_exp_direction_output(USB_HOST1_PWR, 1);
else
port_exp_direction_output(USB_HOST1_PWR, 0);
break;
default:
printf("MXC USB port %d not yet supported\n", port);
return -EINVAL;
}
return 0;
}
#endif
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