mirror of
https://github.com/brain-hackers/u-boot-brain
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a38a3c4af4
T124/210 requires some specific configuration (VPR setup) to be performed by the bootloader before the GPU can be used. For this reason, the GPU node in the device tree is disabled by default. This patch enables the node if U-boot has performed VPR configuration. Boards enabled by this patch are T124's Jetson TK1 and Venice2 and T210's P2571. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Tom Warren <twarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
/*
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* (C) Copyright 2013-2015
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* NVIDIA Corporation <www.nvidia.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 <i2c.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/pinmux.h>
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#include <asm/gpio.h>
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#include "max77620_init.h"
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#include <asm/arch-tegra/gpu.h>
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#include "pinmux-config-p2571.h"
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void pin_mux_mmc(void)
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{
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struct udevice *dev;
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uchar val;
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int ret;
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/* Turn on MAX77620 LDO2 to 3.3V for SD card power */
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debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
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ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
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if (ret) {
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printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
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return;
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}
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/* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
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val = 0xF2;
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ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
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if (ret)
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printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
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}
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/*
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* Routine: pinmux_init
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* Description: Do individual peripheral pinmux configs
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*/
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void pinmux_init(void)
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{
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pinmux_clear_tristate_input_clamping();
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gpio_config_table(p2571_gpio_inits,
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ARRAY_SIZE(p2571_gpio_inits));
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pinmux_config_pingrp_table(p2571_pingrps,
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ARRAY_SIZE(p2571_pingrps));
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pinmux_config_drvgrp_table(p2571_drvgrps,
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ARRAY_SIZE(p2571_drvgrps));
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}
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/*
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* Routine: start_cpu_fan
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* Description: Enable/start PWM CPU fan on P2571
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*/
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void start_cpu_fan(void)
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{
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/* GPIO_PE4 is PS_VDD_FAN_ENABLE */
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gpio_request(GPIO_PE4, "FAN_VDD");
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gpio_direction_output(GPIO_PE4, 1);
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}
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int ft_board_setup(void *blob, bd_t *bd)
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{
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gpu_enable_node(blob, "/gpu@0,57000000");
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return 0;
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}
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