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2be2c6cc DB |
1 | /* |
2 | * (C) Copyright 2008 | |
3 | * Grazvydas Ignotas <notasas@gmail.com> | |
4 | * | |
5 | * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by | |
6 | * Richard Woodruff <r-woodruff2@ti.com> | |
7 | * Syed Mohammed Khasim <khasim@ti.com> | |
8 | * Sunil Kumar <sunilsaini05@gmail.com> | |
9 | * Shashi Ranjan <shashiranjanmca05@gmail.com> | |
10 | * | |
11 | * (C) Copyright 2004-2008 | |
12 | * Texas Instruments, <www.ti.com> | |
13 | * | |
14 | * See file CREDITS for list of people who contributed to this | |
15 | * project. | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or | |
18 | * modify it under the terms of the GNU General Public License as | |
19 | * published by the Free Software Foundation; either version 2 of | |
20 | * the License, or (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
28 | * along with this program; if not, write to the Free Software | |
29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
30 | * MA 02111-1307 USA | |
31 | */ | |
32 | #include <common.h> | |
2c155130 | 33 | #include <twl4030.h> |
2be2c6cc | 34 | #include <asm/io.h> |
7cad446b | 35 | #include <asm/gpio.h> |
86c5c544 | 36 | #include <asm/arch/mmc_host_def.h> |
2be2c6cc | 37 | #include <asm/arch/mux.h> |
080a46ea | 38 | #include <asm/arch/gpio.h> |
2be2c6cc DB |
39 | #include <asm/arch/sys_proto.h> |
40 | #include <asm/mach-types.h> | |
41 | #include "pandora.h" | |
42 | ||
29565326 JR |
43 | DECLARE_GLOBAL_DATA_PTR; |
44 | ||
5246d01e GI |
45 | #define TWL4030_BB_CFG_BBCHEN (1 << 4) |
46 | #define TWL4030_BB_CFG_BBSEL_3200MV (3 << 2) | |
47 | #define TWL4030_BB_CFG_BBISEL_500UA 2 | |
48 | ||
7cad446b GI |
49 | #define CONTROL_WKUP_CTRL 0x48002a5c |
50 | #define GPIO_IO_PWRDNZ (1 << 6) | |
51 | #define PBIASLITEVMODE1 (1 << 8) | |
52 | ||
58911517 | 53 | /* |
2be2c6cc DB |
54 | * Routine: board_init |
55 | * Description: Early hardware init. | |
58911517 | 56 | */ |
2be2c6cc DB |
57 | int board_init(void) |
58 | { | |
2be2c6cc DB |
59 | gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ |
60 | /* board id for Linux */ | |
61 | gd->bd->bi_arch_number = MACH_TYPE_OMAP3_PANDORA; | |
62 | /* boot param addr */ | |
63 | gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); | |
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
7cad446b GI |
68 | static void set_output_gpio(unsigned int gpio, int value) |
69 | { | |
70 | int ret; | |
71 | ||
72 | ret = gpio_request(gpio, ""); | |
73 | if (ret != 0) { | |
74 | printf("could not request GPIO %u\n", gpio); | |
75 | return; | |
76 | } | |
77 | ret = gpio_direction_output(gpio, value); | |
78 | if (ret != 0) | |
79 | printf("could not set GPIO %u to %d\n", gpio, value); | |
80 | } | |
81 | ||
58911517 | 82 | /* |
2be2c6cc DB |
83 | * Routine: misc_init_r |
84 | * Description: Configure board specific parts | |
58911517 | 85 | */ |
2be2c6cc DB |
86 | int misc_init_r(void) |
87 | { | |
7cad446b GI |
88 | t2_t *t2_base = (t2_t *)T2_BASE; |
89 | u32 pbias_lite; | |
2be2c6cc | 90 | |
ead39d7a | 91 | twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); |
2be2c6cc | 92 | |
7cad446b GI |
93 | /* set up dual-voltage GPIOs to 1.8V */ |
94 | pbias_lite = readl(&t2_base->pbias_lite); | |
95 | pbias_lite &= ~PBIASLITEVMODE1; | |
96 | pbias_lite |= PBIASLITEPWRDNZ1; | |
97 | writel(pbias_lite, &t2_base->pbias_lite); | |
98 | if (get_cpu_family() == CPU_OMAP36XX) | |
99 | writel(readl(CONTROL_WKUP_CTRL) | GPIO_IO_PWRDNZ, | |
100 | CONTROL_WKUP_CTRL); | |
101 | ||
102 | /* make sure audio and BT chips are in powerdown state */ | |
103 | set_output_gpio(14, 0); | |
104 | set_output_gpio(15, 0); | |
105 | set_output_gpio(118, 0); | |
106 | ||
107 | /* enable USB supply */ | |
108 | set_output_gpio(164, 1); | |
2be2c6cc | 109 | |
7cad446b GI |
110 | /* wifi needs a short pulse to enter powersave state */ |
111 | set_output_gpio(23, 1); | |
112 | udelay(5000); | |
113 | gpio_direction_output(23, 0); | |
2be2c6cc | 114 | |
5246d01e GI |
115 | /* Enable battery backup capacitor (3.2V, 0.5mA charge current) */ |
116 | twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, | |
0208aaf6 | 117 | TWL4030_PM_RECEIVER_BB_CFG, |
5246d01e | 118 | TWL4030_BB_CFG_BBCHEN | TWL4030_BB_CFG_BBSEL_3200MV | |
0208aaf6 | 119 | TWL4030_BB_CFG_BBISEL_500UA); |
5246d01e | 120 | |
e6a6a704 DB |
121 | dieid_num_r(); |
122 | ||
2be2c6cc DB |
123 | return 0; |
124 | } | |
125 | ||
58911517 | 126 | /* |
2be2c6cc DB |
127 | * Routine: set_muxconf_regs |
128 | * Description: Setting up the configuration Mux registers specific to the | |
129 | * hardware. Many pins need to be moved from protect to primary | |
130 | * mode. | |
58911517 | 131 | */ |
2be2c6cc DB |
132 | void set_muxconf_regs(void) |
133 | { | |
134 | MUX_PANDORA(); | |
10cd73bf GI |
135 | if (get_cpu_family() == CPU_OMAP36XX) { |
136 | MUX_PANDORA_3730(); | |
137 | } | |
2be2c6cc | 138 | } |
86c5c544 TR |
139 | |
140 | #ifdef CONFIG_GENERIC_MMC | |
141 | int board_mmc_init(bd_t *bis) | |
142 | { | |
e3913f56 | 143 | return omap_mmc_init(0, 0, 0, -1, -1); |
86c5c544 TR |
144 | } |
145 | #endif |