mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 03:08:31 +00:00
b0e6ef4640
This converts all Tegra boards over to use driver model for I2C. The driver is adjusted to use driver model and the following obsolete CONFIGs are removed: - CONFIG_SYS_I2C_INIT_BOARD - CONFIG_I2C_MULTI_BUS - CONFIG_SYS_MAX_I2C_BUS - CONFIG_SYS_I2C_SPEED - CONFIG_SYS_I2C This has been tested on: - trimslice (no I2C) - beaver - Jetson-TK1 It has not been tested on Tegra 114 as I don't have that board. Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/*
|
|
* (C) Copyright 2010-2012
|
|
* NVIDIA Corporation <www.nvidia.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/tegra.h>
|
|
#include <asm/arch/clock.h>
|
|
#include <asm/arch/funcmux.h>
|
|
#include <asm/arch/pinmux.h>
|
|
#include <asm/gpio.h>
|
|
#include <i2c.h>
|
|
|
|
#ifdef CONFIG_TEGRA_MMC
|
|
/*
|
|
* Routine: pin_mux_mmc
|
|
* Description: setup the pin muxes/tristate values for the SDMMC(s)
|
|
*/
|
|
void pin_mux_mmc(void)
|
|
{
|
|
struct udevice *dev;
|
|
uchar val;
|
|
int ret;
|
|
|
|
/* Turn on MAX8907B LDO12 to 2.8V for J40 power */
|
|
ret = i2c_get_chip_for_busnum(0, 0x3c, &dev);
|
|
if (ret) {
|
|
printf("%s: Cannot find MAX8907B I2C chip\n", __func__);
|
|
return;
|
|
}
|
|
val = 0x29;
|
|
ret = i2c_write(dev, 0x46, &val, 1);
|
|
if (ret)
|
|
printf("i2c_write 0 0x3c 0x46 failed: %d\n", ret);
|
|
val = 0x00;
|
|
ret = i2c_write(dev, 0x45, &val, 1);
|
|
if (ret)
|
|
printf("i2c_write 0 0x3c 0x45 failed: %d\n", ret);
|
|
val = 0x1f;
|
|
ret = i2c_write(dev, 0x44, &val, 1);
|
|
if (ret)
|
|
printf("i2c_write 0 0x3c 0x44 failed: %d\n", ret);
|
|
|
|
funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_SLXA_8BIT);
|
|
funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATC_ATD_8BIT);
|
|
}
|
|
#endif
|
|
|
|
/* this is a weak define that we are overriding */
|
|
void pin_mux_usb(void)
|
|
{
|
|
struct udevice *dev;
|
|
uchar val;
|
|
int ret;
|
|
|
|
/*
|
|
* This is a hack. This should be represented in DT using the
|
|
* vbus-gpio property. However, U-Boot's DT support doesn't
|
|
* support any GPIO controller other than the Tegra's yet.
|
|
*/
|
|
|
|
/* Turn on TAC6416's GPIO 0+1 for USB1/3's VBUS */
|
|
ret = i2c_get_chip_for_busnum(0, 0x20, &dev);
|
|
if (ret) {
|
|
printf("%s: Cannot find TAC6416 I2C chip\n", __func__);
|
|
return;
|
|
}
|
|
val = 0x03;
|
|
ret = i2c_write(dev, 2, &val, 1);
|
|
if (ret)
|
|
printf("i2c_write 0 0x20 2 failed: %d\n", ret);
|
|
val = 0xfc;
|
|
ret = i2c_write(dev, 6, &val, 1);
|
|
if (ret)
|
|
printf("i2c_write 0 0x20 6 failed: %d\n", ret);
|
|
}
|