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u-boot/board/wandboard/wandboard.c
Trent Piepho d1337210d1 wandboard: Don't use I2C speed Kconfig settings with DM_I2C 
When using DM_I2C the speed value supplied to setup_i2c() is not used,
so this code required CONFIG_SYS_MXC_I2C[12]_SPEED to be defined to
compile, but did not actually use them.

Change this so we no longer need to define an unused macro to compile in
DM_I2C mode.  Also make it more clear that they do not control the bus
speed.  Otherwise it is quite easy to mistakenly believe they are used
to set the bus speed.

Cc: Heiko Schocher <hs@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Trent Piepho <tpiepho@impinj.com>
2019-05-17 05:35:24 +02:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013 Freescale Semiconductor, Inc.
* Copyright (C) 2014 O.S. Systems Software LTDA.
*
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*/
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/mxc_hdmi.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/video.h>
#include <asm/mach-imx/sata.h>
#include <asm/io.h>
#include <linux/sizes.h>
#include <common.h>
#include <miiphy.h>
#include <netdev.h>
#include <phy.h>
#include <i2c.h>
#include <power/pmic.h>
#include <power/pfuze100_pmic.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 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 ETH_PHY_RESET IMX_GPIO_NR(3, 29)
#define ETH_PHY_AR8035_POWER IMX_GPIO_NR(7, 13)
#define REV_DETECTION IMX_GPIO_NR(2, 28)
/* Speed defined in Kconfig is only applicable when not using DM_I2C. */
#ifdef CONFIG_DM_I2C
#define I2C1_SPEED_NON_DM 0
#define I2C2_SPEED_NON_DM 0
#else
#define I2C1_SPEED_NON_DM CONFIG_SYS_MXC_I2C1_SPEED
#define I2C2_SPEED_NON_DM CONFIG_SYS_MXC_I2C2_SPEED
#endif
static bool with_pmic;
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
static iomux_v3_cfg_t const uart1_pads[] = {
IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
};
static iomux_v3_cfg_t const enet_pads[] = {
IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
/* AR8031 PHY Reset */
IOMUX_PADS(PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
static iomux_v3_cfg_t const enet_ar8035_power_pads[] = {
/* AR8035 POWER */
IOMUX_PADS(PAD_GPIO_18__GPIO7_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
static iomux_v3_cfg_t const rev_detection_pad[] = {
IOMUX_PADS(PAD_EIM_EB0__GPIO2_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
static void setup_iomux_uart(void)
{
SETUP_IOMUX_PADS(uart1_pads);
}
static void setup_iomux_enet(void)
{
SETUP_IOMUX_PADS(enet_pads);
if (with_pmic) {
SETUP_IOMUX_PADS(enet_ar8035_power_pads);
/* enable AR8035 POWER */
gpio_request(ETH_PHY_AR8035_POWER, "PHY_POWER");
gpio_direction_output(ETH_PHY_AR8035_POWER, 0);
}
/* wait until 3.3V of PHY and clock become stable */
mdelay(10);
/* Reset AR8031 PHY */
gpio_request(ETH_PHY_RESET, "PHY_RESET");
gpio_direction_output(ETH_PHY_RESET, 0);
mdelay(10);
gpio_set_value(ETH_PHY_RESET, 1);
udelay(100);
}
static int ar8031_phy_fixup(struct phy_device *phydev)
{
unsigned short val;
int mask;
/* To enable AR8031 ouput a 125MHz clk from CLK_25M */
phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
if (with_pmic)
mask = 0xffe7; /* AR8035 */
else
mask = 0xffe3; /* AR8031 */
val &= mask;
val |= 0x18;
phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
/* introduce tx clock delay */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
val |= 0x0100;
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
return 0;
}
int board_phy_config(struct phy_device *phydev)
{
ar8031_phy_fixup(phydev);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
#if defined(CONFIG_VIDEO_IPUV3)
struct i2c_pads_info mx6q_i2c2_pad_info = {
.scl = {
.i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gpio_mode = MX6Q_PAD_KEY_COL3__GPIO4_IO12
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(4, 12)
},
.sda = {
.i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO4_IO13
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(4, 13)
}
};
struct i2c_pads_info mx6dl_i2c2_pad_info = {
.scl = {
.i2c_mode = MX6DL_PAD_KEY_COL3__I2C2_SCL
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gpio_mode = MX6DL_PAD_KEY_COL3__GPIO4_IO12
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(4, 12)
},
.sda = {
.i2c_mode = MX6DL_PAD_KEY_ROW3__I2C2_SDA
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gpio_mode = MX6DL_PAD_KEY_ROW3__GPIO4_IO13
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(4, 13)
}
};
struct i2c_pads_info mx6q_i2c3_pad_info = {
.scl = {
.i2c_mode = MX6Q_PAD_GPIO_5__I2C3_SCL
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gpio_mode = MX6Q_PAD_GPIO_5__GPIO1_IO05
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(1, 5)
},
.sda = {
.i2c_mode = MX6Q_PAD_GPIO_16__I2C3_SDA
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gpio_mode = MX6Q_PAD_GPIO_16__GPIO7_IO11
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(7, 11)
}
};
struct i2c_pads_info mx6dl_i2c3_pad_info = {
.scl = {
.i2c_mode = MX6DL_PAD_GPIO_5__I2C3_SCL
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gpio_mode = MX6DL_PAD_GPIO_5__GPIO1_IO05
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(1, 5)
},
.sda = {
.i2c_mode = MX6DL_PAD_GPIO_16__I2C3_SDA
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gpio_mode = MX6DL_PAD_GPIO_16__GPIO7_IO11
| MUX_PAD_CTRL(I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(7, 11)
}
};
static iomux_v3_cfg_t const fwadapt_7wvga_pads[] = {
IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK),
IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02), /* HSync */
IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03), /* VSync */
IOMUX_PADS(PAD_DI0_PIN4__IPU1_DI0_PIN04 | MUX_PAD_CTRL(PAD_CTL_DSE_120ohm)), /* Contrast */
IOMUX_PADS(PAD_DI0_PIN15__IPU1_DI0_PIN15), /* DISP0_DRDY */
IOMUX_PADS(PAD_DISP0_DAT0__IPU1_DISP0_DATA00),
IOMUX_PADS(PAD_DISP0_DAT1__IPU1_DISP0_DATA01),
IOMUX_PADS(PAD_DISP0_DAT2__IPU1_DISP0_DATA02),
IOMUX_PADS(PAD_DISP0_DAT3__IPU1_DISP0_DATA03),
IOMUX_PADS(PAD_DISP0_DAT4__IPU1_DISP0_DATA04),
IOMUX_PADS(PAD_DISP0_DAT5__IPU1_DISP0_DATA05),
IOMUX_PADS(PAD_DISP0_DAT6__IPU1_DISP0_DATA06),
IOMUX_PADS(PAD_DISP0_DAT7__IPU1_DISP0_DATA07),
IOMUX_PADS(PAD_DISP0_DAT8__IPU1_DISP0_DATA08),
IOMUX_PADS(PAD_DISP0_DAT9__IPU1_DISP0_DATA09),
IOMUX_PADS(PAD_DISP0_DAT10__IPU1_DISP0_DATA10),
IOMUX_PADS(PAD_DISP0_DAT11__IPU1_DISP0_DATA11),
IOMUX_PADS(PAD_DISP0_DAT12__IPU1_DISP0_DATA12),
IOMUX_PADS(PAD_DISP0_DAT13__IPU1_DISP0_DATA13),
IOMUX_PADS(PAD_DISP0_DAT14__IPU1_DISP0_DATA14),
IOMUX_PADS(PAD_DISP0_DAT15__IPU1_DISP0_DATA15),
IOMUX_PADS(PAD_DISP0_DAT16__IPU1_DISP0_DATA16),
IOMUX_PADS(PAD_DISP0_DAT17__IPU1_DISP0_DATA17),
IOMUX_PADS(PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_BKLEN */
IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_VDDEN */
};
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)
{
#ifdef CONFIG_DM_I2C
struct udevice *bus, *udev;
int rc;
rc = uclass_get_device_by_seq(UCLASS_I2C, dev->bus, &bus);
if (rc)
return rc;
rc = dm_i2c_probe(bus, dev->addr, 0, &udev);
if (rc)
return 0;
return 1;
#else
return (0 == i2c_set_bus_num(dev->bus)) &&
(0 == i2c_probe(dev->addr));
#endif
}
static void enable_fwadapt_7wvga(struct display_info_t const *dev)
{
SETUP_IOMUX_PADS(fwadapt_7wvga_pads);
gpio_request(IMX_GPIO_NR(2, 10), "DISP0_BKLEN");
gpio_request(IMX_GPIO_NR(2, 11), "DISP0_VDDEN");
gpio_direction_output(IMX_GPIO_NR(2, 10), 1);
gpio_direction_output(IMX_GPIO_NR(2, 11), 1);
}
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 = 1,
.addr = 0x10,
.pixfmt = IPU_PIX_FMT_RGB666,
.detect = detect_i2c,
.enable = enable_fwadapt_7wvga,
.mode = {
.name = "FWBADAPT-LCD-F07A-0102",
.refresh = 60,
.xres = 800,
.yres = 480,
.pixclock = 33260,
.left_margin = 128,
.right_margin = 128,
.upper_margin = 22,
.lower_margin = 22,
.hsync_len = 1,
.vsync_len = 1,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED
} } };
size_t display_count = ARRAY_SIZE(displays);
static void setup_display(void)
{
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
int reg;
enable_ipu_clock();
imx_setup_hdmi();
reg = readl(&mxc_ccm->chsccdr);
reg |= (CHSCCDR_CLK_SEL_LDB_DI0
<< MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
writel(reg, &mxc_ccm->chsccdr);
/* Disable LCD backlight */
SETUP_IOMUX_PAD(PAD_DI0_PIN4__GPIO4_IO20);
gpio_request(IMX_GPIO_NR(4, 20), "LCD_BKLEN");
gpio_direction_input(IMX_GPIO_NR(4, 20));
}
#endif /* CONFIG_VIDEO_IPUV3 */
int board_eth_init(bd_t *bis)
{
setup_iomux_enet();
return cpu_eth_init(bis);
}
int board_early_init_f(void)
{
setup_iomux_uart();
#ifdef CONFIG_SATA
setup_sata();
#endif
return 0;
}
#define PMIC_I2C_BUS 2
int power_init_board(void)
{
struct udevice *dev;
int reg, ret;
puts("PMIC: ");
ret = pmic_get("pfuze100", &dev);
if (ret < 0) {
printf("pmic_get() ret %d\n", ret);
return 0;
}
reg = pmic_reg_read(dev, PFUZE100_DEVICEID);
if (reg < 0) {
printf("pmic_reg_read() ret %d\n", reg);
return 0;
}
printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
with_pmic = true;
/* Set VGEN2 to 1.5V and enable */
reg = pmic_reg_read(dev, PFUZE100_VGEN2VOL);
reg &= ~(LDO_VOL_MASK);
reg |= (LDOA_1_50V | (1 << (LDO_EN)));
pmic_reg_write(dev, PFUZE100_VGEN2VOL, reg);
return 0;
}
/*
* Do not overwrite the console
* Use always serial for U-Boot console
*/
int overwrite_console(void)
{
return 1;
}
#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, 0x20, 0x00, 0x00)},
{NULL, 0},
};
#endif
static bool is_revc1(void)
{
SETUP_IOMUX_PADS(rev_detection_pad);
gpio_direction_input(REV_DETECTION);
if (gpio_get_value(REV_DETECTION))
return true;
else
return false;
}
static bool is_revd1(void)
{
if (with_pmic)
return true;
else
return false;
}
int board_late_init(void)
{
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
if (is_mx6dqp())
env_set("board_rev", "MX6QP");
else if (is_mx6dq())
env_set("board_rev", "MX6Q");
else
env_set("board_rev", "MX6DL");
if (is_revd1())
env_set("board_name", "D1");
else if (is_revc1())
env_set("board_name", "C1");
else
env_set("board_name", "B1");
#endif
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
#if defined(CONFIG_VIDEO_IPUV3)
setup_i2c(1, I2C1_SPEED_NON_DM, 0x7f, &mx6dl_i2c2_pad_info);
if (is_mx6dq() || is_mx6dqp()) {
setup_i2c(1, I2C1_SPEED_NON_DM, 0x7f, &mx6q_i2c2_pad_info);
setup_i2c(2, I2C2_SPEED_NON_DM, 0x7f, &mx6q_i2c3_pad_info);
} else {
setup_i2c(1, I2C1_SPEED_NON_DM, 0x7f, &mx6dl_i2c2_pad_info);
setup_i2c(2, I2C2_SPEED_NON_DM, 0x7f, &mx6dl_i2c3_pad_info);
}
setup_display();
#endif
return 0;
}
int checkboard(void)
{
gpio_request(REV_DETECTION, "REV_DETECT");
if (is_revd1())
puts("Board: Wandboard rev D1\n");
else if (is_revc1())
puts("Board: Wandboard rev C1\n");
else
puts("Board: Wandboard rev B1\n");
return 0;
}
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