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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
133 lines
2.9 KiB
C
133 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2014
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* NVIDIA Corporation <www.nvidia.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <asm/gpio.h>
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#include <asm/io.h>
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#include <asm/arch/pinmux.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/mc.h>
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#include <asm/arch-tegra/clk_rst.h>
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#include <asm/arch-tegra/pmc.h>
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#include <power/as3722.h>
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#include <power/pmic.h>
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#include "pinmux-config-nyan-big.h"
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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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gpio_config_table(nyan_big_gpio_inits,
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ARRAY_SIZE(nyan_big_gpio_inits));
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pinmux_config_pingrp_table(nyan_big_pingrps,
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ARRAY_SIZE(nyan_big_pingrps));
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pinmux_config_drvgrp_table(nyan_big_drvgrps,
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ARRAY_SIZE(nyan_big_drvgrps));
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}
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int tegra_board_id(void)
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{
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static const int vector[] = {TEGRA_GPIO(Q, 3), TEGRA_GPIO(T, 1),
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TEGRA_GPIO(X, 1), TEGRA_GPIO(X, 4),
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-1};
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gpio_claim_vector(vector, "board_id%d");
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return gpio_get_values_as_int(vector);
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}
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int tegra_lcd_pmic_init(int board_id)
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{
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struct udevice *dev;
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int ret;
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ret = uclass_get_device_by_driver(UCLASS_PMIC,
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DM_GET_DRIVER(pmic_as3722), &dev);
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if (ret) {
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debug("%s: Failed to find PMIC\n", __func__);
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return ret;
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}
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if (board_id == 0)
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pmic_reg_write(dev, 0x00, 0x3c);
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else
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pmic_reg_write(dev, 0x00, 0x50);
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pmic_reg_write(dev, 0x12, 0x10);
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pmic_reg_write(dev, 0x0c, 0x07);
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pmic_reg_write(dev, 0x20, 0x10);
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return 0;
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}
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/* Setup required information for Linux kernel */
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static void setup_kernel_info(void)
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{
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struct mc_ctlr *mc = (void *)NV_PA_MC_BASE;
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/* The kernel graphics driver needs this region locked down */
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writel(0, &mc->mc_video_protect_bom);
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writel(0, &mc->mc_video_protect_size_mb);
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writel(1, &mc->mc_video_protect_reg_ctrl);
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}
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/*
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* We need to take ALL audio devices conntected to AHUB (AUDIO, APBIF,
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* I2S, DAM, AMX, ADX, SPDIF, AFC) out of reset and enable the clocks.
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* Otherwise reading AHUB devices will hang when the kernel boots.
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*/
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static void enable_required_clocks(void)
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{
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static enum periph_id ids[] = {
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PERIPH_ID_I2S0,
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PERIPH_ID_I2S1,
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PERIPH_ID_I2S2,
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PERIPH_ID_I2S3,
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PERIPH_ID_I2S4,
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PERIPH_ID_AUDIO,
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PERIPH_ID_APBIF,
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PERIPH_ID_DAM0,
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PERIPH_ID_DAM1,
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PERIPH_ID_DAM2,
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PERIPH_ID_AMX0,
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PERIPH_ID_AMX1,
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PERIPH_ID_ADX0,
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PERIPH_ID_ADX1,
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PERIPH_ID_SPDIF,
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PERIPH_ID_AFC0,
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PERIPH_ID_AFC1,
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PERIPH_ID_AFC2,
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PERIPH_ID_AFC3,
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PERIPH_ID_AFC4,
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PERIPH_ID_AFC5,
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PERIPH_ID_EXTPERIPH1
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};
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int i;
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for (i = 0; i < ARRAY_SIZE(ids); i++)
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clock_enable(ids[i]);
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udelay(2);
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for (i = 0; i < ARRAY_SIZE(ids); i++)
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reset_set_enable(ids[i], 0);
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}
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int nvidia_board_init(void)
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{
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clock_start_periph_pll(PERIPH_ID_EXTPERIPH1, CLOCK_ID_OSC, 12000000);
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clock_start_periph_pll(PERIPH_ID_I2S1, CLOCK_ID_OSC, 1500000);
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/* For external MAX98090 audio codec */
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clock_external_output(1);
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setup_kernel_info();
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enable_required_clocks();
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return 0;
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}
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