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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 83d290c56fab2d38cd1ab4c4cc7099559c1d5046 / . / board / nvidia / nyan-big / nyan-big.c
blob: ff5c67de98542a82ef04933496db123f32024ea6 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -0400[diff] [blame^]1// SPDX-License-Identifier: GPL-2.0+
Allen Martina6c7b462014-12-04 06:36:30 -0700[diff] [blame]2/*
3 * (C) Copyright 2014
4 * NVIDIA Corporation <www.nvidia.com>
Allen Martina6c7b462014-12-04 06:36:30 -0700[diff] [blame]5 */
6
7#include <common.h>
Simon Glasse3f44f52017-07-25 08:30:12 -0600[diff] [blame]8#include <dm.h>
Simon Glass0deba292015-04-14 21:03:29 -0600[diff] [blame]9#include <errno.h>
10#include <asm/gpio.h>
Simon Glass7cfde812015-06-05 14:39:43 -0600[diff] [blame]11#include <asm/io.h>
Allen Martina6c7b462014-12-04 06:36:30 -0700[diff] [blame]12#include <asm/arch/pinmux.h>
Simon Glass7cfde812015-06-05 14:39:43 -0600[diff] [blame]13#include <asm/arch/clock.h>
14#include <asm/arch/mc.h>
15#include <asm/arch-tegra/clk_rst.h>
16#include <asm/arch-tegra/pmc.h>
Simon Glass0deba292015-04-14 21:03:29 -0600[diff] [blame]17#include <power/as3722.h>
18#include <power/pmic.h>
Allen Martina6c7b462014-12-04 06:36:30 -0700[diff] [blame]19#include "pinmux-config-nyan-big.h"
20
21/*
22 * Routine: pinmux_init
23 * Description: Do individual peripheral pinmux configs
24 */
25void pinmux_init(void)
26{
27 gpio_config_table(nyan_big_gpio_inits,
28 ARRAY_SIZE(nyan_big_gpio_inits));
29
30 pinmux_config_pingrp_table(nyan_big_pingrps,
31 ARRAY_SIZE(nyan_big_pingrps));
32
33 pinmux_config_drvgrp_table(nyan_big_drvgrps,
34 ARRAY_SIZE(nyan_big_drvgrps));
35}
Simon Glass0deba292015-04-14 21:03:29 -0600[diff] [blame]36
37int tegra_board_id(void)
38{
Stephen Warren01a97a12016-05-12 12:07:39 -0600[diff] [blame]39 static const int vector[] = {TEGRA_GPIO(Q, 3), TEGRA_GPIO(T, 1),
40 TEGRA_GPIO(X, 1), TEGRA_GPIO(X, 4),
41 -1};
Simon Glass0deba292015-04-14 21:03:29 -0600[diff] [blame]42
43 gpio_claim_vector(vector, "board_id%d");
44 return gpio_get_values_as_int(vector);
45}
46
47int tegra_lcd_pmic_init(int board_id)
48{
Simon Glasse3f44f52017-07-25 08:30:12 -0600[diff] [blame]49 struct udevice *dev;
Simon Glass0deba292015-04-14 21:03:29 -0600[diff] [blame]50 int ret;
51
Simon Glasse3f44f52017-07-25 08:30:12 -0600[diff] [blame]52 ret = uclass_get_device_by_driver(UCLASS_PMIC,
53 DM_GET_DRIVER(pmic_as3722), &dev);
54 if (ret) {
55 debug("%s: Failed to find PMIC\n", __func__);
56 return ret;
57 }
Simon Glass0deba292015-04-14 21:03:29 -0600[diff] [blame]58
59 if (board_id == 0)
Simon Glasse3f44f52017-07-25 08:30:12 -0600[diff] [blame]60 pmic_reg_write(dev, 0x00, 0x3c);
Simon Glass0deba292015-04-14 21:03:29 -0600[diff] [blame]61 else
Simon Glasse3f44f52017-07-25 08:30:12 -0600[diff] [blame]62 pmic_reg_write(dev, 0x00, 0x50);
63 pmic_reg_write(dev, 0x12, 0x10);
64 pmic_reg_write(dev, 0x0c, 0x07);
65 pmic_reg_write(dev, 0x20, 0x10);
Simon Glass0deba292015-04-14 21:03:29 -0600[diff] [blame]66
67 return 0;
68}
Simon Glass7cfde812015-06-05 14:39:43 -0600[diff] [blame]69
70/* Setup required information for Linux kernel */
71static void setup_kernel_info(void)
72{
73 struct mc_ctlr *mc = (void *)NV_PA_MC_BASE;
74
75 /* The kernel graphics driver needs this region locked down */
76 writel(0, &mc->mc_video_protect_bom);
77 writel(0, &mc->mc_video_protect_size_mb);
78 writel(1, &mc->mc_video_protect_reg_ctrl);
79}
80
81/*
82 * We need to take ALL audio devices conntected to AHUB (AUDIO, APBIF,
83 * I2S, DAM, AMX, ADX, SPDIF, AFC) out of reset and enable the clocks.
84 * Otherwise reading AHUB devices will hang when the kernel boots.
85 */
86static void enable_required_clocks(void)
87{
88 static enum periph_id ids[] = {
89 PERIPH_ID_I2S0,
90 PERIPH_ID_I2S1,
91 PERIPH_ID_I2S2,
92 PERIPH_ID_I2S3,
93 PERIPH_ID_I2S4,
94 PERIPH_ID_AUDIO,
95 PERIPH_ID_APBIF,
96 PERIPH_ID_DAM0,
97 PERIPH_ID_DAM1,
98 PERIPH_ID_DAM2,
99 PERIPH_ID_AMX0,
100 PERIPH_ID_AMX1,
101 PERIPH_ID_ADX0,
102 PERIPH_ID_ADX1,
103 PERIPH_ID_SPDIF,
104 PERIPH_ID_AFC0,
105 PERIPH_ID_AFC1,
106 PERIPH_ID_AFC2,
107 PERIPH_ID_AFC3,
108 PERIPH_ID_AFC4,
109 PERIPH_ID_AFC5,
110 PERIPH_ID_EXTPERIPH1
111 };
112 int i;
113
114 for (i = 0; i < ARRAY_SIZE(ids); i++)
115 clock_enable(ids[i]);
116 udelay(2);
117 for (i = 0; i < ARRAY_SIZE(ids); i++)
118 reset_set_enable(ids[i], 0);
119}
120
121int nvidia_board_init(void)
122{
123 clock_start_periph_pll(PERIPH_ID_EXTPERIPH1, CLOCK_ID_OSC, 12000000);
124 clock_start_periph_pll(PERIPH_ID_I2S1, CLOCK_ID_OSC, 1500000);
125
126 /* For external MAX98090 audio codec */
127 clock_external_output(1);
128 setup_kernel_info();
129 enable_required_clocks();
130
131 return 0;
132}