1 /*
2 * (C) Copyright 2010,2011
3 * NVIDIA Corporation <www.nvidia.com>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
24 #include <common.h>
25 #include <ns16550.h>
26 #include <linux/compiler.h>
27 #include <asm/io.h>
28 #include <asm/arch/clock.h>
29 #ifdef CONFIG_LCD
30 #include <asm/arch/display.h>
31 #endif
32 #include <asm/arch/funcmux.h>
33 #include <asm/arch/pinmux.h>
34 #include <asm/arch/pmu.h>
35 #ifdef CONFIG_PWM_TEGRA
36 #include <asm/arch/pwm.h>
37 #endif
38 #include <asm/arch/tegra.h>
39 #include <asm/arch-tegra/board.h>
40 #include <asm/arch-tegra/clk_rst.h>
41 #include <asm/arch-tegra/pmc.h>
42 #include <asm/arch-tegra/sys_proto.h>
43 #include <asm/arch-tegra/uart.h>
44 #include <asm/arch-tegra/warmboot.h>
45 #ifdef CONFIG_TEGRA_CLOCK_SCALING
46 #include <asm/arch/emc.h>
47 #endif
48 #ifdef CONFIG_USB_EHCI_TEGRA
49 #include <asm/arch/usb.h>
50 #endif
51 #include <i2c.h>
52 #include <spi.h>
53 #include "emc.h"
55 DECLARE_GLOBAL_DATA_PTR;
57 const struct tegra_sysinfo sysinfo = {
58 CONFIG_TEGRA_BOARD_STRING
59 };
61 #ifndef CONFIG_SPL_BUILD
62 /*
63 * Routine: timer_init
64 * Description: init the timestamp and lastinc value
65 */
66 int timer_init(void)
67 {
68 return 0;
69 }
70 #endif
72 void __pin_mux_usb(void)
73 {
74 }
76 void pin_mux_usb(void) __attribute__((weak, alias("__pin_mux_usb")));
78 void __pin_mux_spi(void)
79 {
80 }
82 void pin_mux_spi(void) __attribute__((weak, alias("__pin_mux_spi")));
84 void __gpio_early_init_uart(void)
85 {
86 }
88 void gpio_early_init_uart(void)
89 __attribute__((weak, alias("__gpio_early_init_uart")));
91 void __pin_mux_nand(void)
92 {
93 funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_DEFAULT);
94 }
96 void pin_mux_nand(void) __attribute__((weak, alias("__pin_mux_nand")));
98 void __pin_mux_display(void)
99 {
100 }
102 void pin_mux_display(void) __attribute__((weak, alias("__pin_mux_display")));
104 /*
105 * Routine: power_det_init
106 * Description: turn off power detects
107 */
108 static void power_det_init(void)
109 {
110 #if defined(CONFIG_TEGRA20)
111 struct pmc_ctlr *const pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
113 /* turn off power detects */
114 writel(0, &pmc->pmc_pwr_det_latch);
115 writel(0, &pmc->pmc_pwr_det);
116 #endif
117 }
119 /*
120 * Routine: board_init
121 * Description: Early hardware init.
122 */
123 int board_init(void)
124 {
125 __maybe_unused int err;
127 /* Do clocks and UART first so that printf() works */
128 clock_init();
129 clock_verify();
131 #ifdef CONFIG_SPI_UART_SWITCH
132 gpio_config_uart();
133 #endif
134 #if defined(CONFIG_TEGRA_SPI) || defined(CONFIG_TEGRA_SLINK)
135 pin_mux_spi();
136 spi_init();
137 #endif
139 #ifdef CONFIG_PWM_TEGRA
140 if (pwm_init(gd->fdt_blob))
141 debug("%s: Failed to init pwm\n", __func__);
142 #endif
143 #ifdef CONFIG_LCD
144 pin_mux_display();
145 tegra_lcd_check_next_stage(gd->fdt_blob, 0);
146 #endif
147 /* boot param addr */
148 gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
150 power_det_init();
152 #ifdef CONFIG_TEGRA_I2C
153 #ifndef CONFIG_SYS_I2C_INIT_BOARD
154 #error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
155 #endif
156 i2c_init_board();
157 # ifdef CONFIG_TEGRA_PMU
158 if (pmu_set_nominal())
159 debug("Failed to select nominal voltages\n");
160 # ifdef CONFIG_TEGRA_CLOCK_SCALING
161 err = board_emc_init();
162 if (err)
163 debug("Memory controller init failed: %d\n", err);
164 # endif
165 # endif /* CONFIG_TEGRA_PMU */
166 #endif /* CONFIG_TEGRA_I2C */
168 #ifdef CONFIG_USB_EHCI_TEGRA
169 pin_mux_usb();
170 board_usb_init(gd->fdt_blob);
171 #endif
172 #ifdef CONFIG_LCD
173 tegra_lcd_check_next_stage(gd->fdt_blob, 0);
174 #endif
176 #ifdef CONFIG_TEGRA_NAND
177 pin_mux_nand();
178 #endif
180 #ifdef CONFIG_TEGRA_LP0
181 /* save Sdram params to PMC 2, 4, and 24 for WB0 */
182 warmboot_save_sdram_params();
184 /* prepare the WB code to LP0 location */
185 warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
186 #endif
188 return 0;
189 }
191 #ifdef CONFIG_BOARD_EARLY_INIT_F
192 static void __gpio_early_init(void)
193 {
194 }
196 void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
198 int board_early_init_f(void)
199 {
200 #if !defined(CONFIG_TEGRA20)
201 pinmux_init();
202 #endif
203 board_init_uart_f();
205 /* Initialize periph GPIOs */
206 gpio_early_init();
207 gpio_early_init_uart();
208 #ifdef CONFIG_LCD
209 tegra_lcd_early_init(gd->fdt_blob);
210 #endif
212 return 0;
213 }
214 #endif /* EARLY_INIT */
216 int board_late_init(void)
217 {
218 #ifdef CONFIG_LCD
219 /* Make sure we finish initing the LCD */
220 tegra_lcd_check_next_stage(gd->fdt_blob, 1);
221 #endif
222 return 0;
223 }