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06399329 PM |
1 | /* |
2 | * U-boot - main board file for BCT brettl2 | |
3 | * | |
4 | * Copyright (c) 2010 BCT Electronic GmbH | |
5 | * | |
6 | * Licensed under the GPL-2 or later. | |
7 | */ | |
8 | ||
9 | #include <common.h> | |
10 | #include <config.h> | |
11 | #include <command.h> | |
12 | #include <asm/blackfin.h> | |
13 | #include <asm/portmux.h> | |
14 | #include <asm/gpio.h> | |
15 | #include <asm/net.h> | |
16 | #include <net.h> | |
17 | #include <netdev.h> | |
18 | #include <miiphy.h> | |
19 | ||
20 | #include "../cm-bf537e/gpio_cfi_flash.h" | |
21 | #include "smsc9303.h" | |
22 | ||
23 | DECLARE_GLOBAL_DATA_PTR; | |
24 | ||
25 | int checkboard(void) | |
26 | { | |
27 | printf("Board: bct-brettl2 board\n"); | |
28 | printf(" Support: http://www.bct-electronic.com/\n"); | |
29 | return 0; | |
30 | } | |
31 | ||
32 | #ifdef CONFIG_BFIN_MAC | |
33 | static void board_init_enetaddr(uchar *mac_addr) | |
34 | { | |
35 | puts("Warning: Generating 'random' MAC address\n"); | |
36 | bfin_gen_rand_mac(mac_addr); | |
37 | eth_setenv_enetaddr("ethaddr", mac_addr); | |
38 | } | |
39 | ||
40 | int board_eth_init(bd_t *bis) | |
41 | { | |
42 | int retry = 3; | |
43 | int ret; | |
44 | ||
45 | ret = bfin_EMAC_initialize(bis); | |
46 | ||
47 | uchar enetaddr[6]; | |
48 | if (eth_getenv_enetaddr("ethaddr", enetaddr)) { | |
49 | printf("setting MAC %pM\n", enetaddr); | |
50 | } | |
51 | puts(" "); | |
52 | ||
53 | puts("initialize SMSC LAN9303i ethernet switch\n"); | |
54 | ||
55 | while (retry-- > 0) { | |
56 | if (init_smsc9303i_mii()) | |
57 | return ret; | |
58 | } | |
59 | ||
60 | return ret; | |
61 | } | |
62 | #endif | |
63 | ||
64 | static void init_tlv320aic31(void) | |
65 | { | |
66 | puts("Audio: setup TIMER0 to enable 16.384 MHz clock for tlv320aic31\n"); | |
67 | peripheral_request(P_TMR0, "tlv320aic31 clock"); | |
68 | bfin_write_TIMER0_CONFIG(0x020d); | |
69 | bfin_write_TIMER0_PERIOD(0x0008); | |
70 | bfin_write_TIMER0_WIDTH(0x0008/2); | |
71 | bfin_write_TIMER_ENABLE(bfin_read_TIMER_ENABLE() | 1); | |
72 | SSYNC(); | |
73 | udelay(10000); | |
74 | ||
75 | puts(" resetting tlv320aic31\n"); | |
76 | ||
77 | gpio_request(GPIO_PF2, "tlv320aic31"); | |
78 | gpio_direction_output(GPIO_PF2, 0); | |
79 | udelay(10000); | |
80 | gpio_direction_output(GPIO_PF2, 1); | |
81 | udelay(10000); | |
82 | gpio_free(GPIO_PF2); | |
83 | } | |
84 | ||
85 | static void init_mute_pin(void) | |
86 | { | |
87 | printf(" unmute class D amplifier\n"); | |
88 | ||
89 | gpio_request(GPIO_PF5, "mute"); | |
90 | gpio_direction_output(GPIO_PF5, 1); | |
91 | gpio_free(GPIO_PF5); | |
92 | } | |
93 | ||
94 | /* sometimes LEDs (speech, status) are still on after reboot, turn 'em off */ | |
95 | static void turn_leds_off(void) | |
96 | { | |
97 | printf(" turn LEDs off\n"); | |
98 | ||
99 | gpio_request(GPIO_PF6, "led"); | |
100 | gpio_direction_output(GPIO_PF6, 0); | |
101 | gpio_free(GPIO_PF6); | |
102 | ||
103 | gpio_request(GPIO_PF15, "led"); | |
104 | gpio_direction_output(GPIO_PF15, 0); | |
105 | gpio_free(GPIO_PF15); | |
106 | } | |
107 | ||
108 | /* miscellaneous platform dependent initialisations */ | |
109 | int misc_init_r(void) | |
110 | { | |
111 | #ifdef CONFIG_BFIN_MAC | |
112 | uchar enetaddr[6]; | |
113 | if (!eth_getenv_enetaddr("ethaddr", enetaddr)) | |
114 | board_init_enetaddr(enetaddr); | |
115 | #endif | |
116 | ||
117 | gpio_cfi_flash_init(); | |
118 | init_tlv320aic31(); | |
119 | init_mute_pin(); | |
120 | turn_leds_off(); | |
121 | ||
122 | return 0; | |
123 | } |