| 1 | /* |
| 2 | * Authors: Xiangfu Liu <xiangfu.z@gmail.com> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 3 of the License, or (at your option) any later version. |
| 8 | */ |
| 9 | |
| 10 | #include <common.h> |
| 11 | #include <command.h> |
| 12 | #include <asm/mipsregs.h> |
| 13 | #include <asm/jz4740.h> |
| 14 | |
| 15 | DECLARE_GLOBAL_DATA_PTR; |
| 16 | |
| 17 | static void gpio_init(void) |
| 18 | { |
| 19 | /* |
| 20 | * Initialize NAND Flash Pins |
| 21 | */ |
| 22 | __gpio_as_nand(); |
| 23 | |
| 24 | /* |
| 25 | * Initialize SDRAM pins |
| 26 | */ |
| 27 | __gpio_as_sdram_16bit_4720(); |
| 28 | |
| 29 | /* |
| 30 | * Initialize LCD pins |
| 31 | */ |
| 32 | __gpio_as_lcd_18bit(); |
| 33 | |
| 34 | /* |
| 35 | * Initialize MSC pins |
| 36 | */ |
| 37 | __gpio_as_msc(); |
| 38 | |
| 39 | /* |
| 40 | * Initialize Other pins |
| 41 | */ |
| 42 | unsigned int i; |
| 43 | for (i = 0; i < 7; i++){ |
| 44 | __gpio_as_input(GPIO_KEYIN_BASE + i); |
| 45 | __gpio_enable_pull(GPIO_KEYIN_BASE + i); |
| 46 | } |
| 47 | |
| 48 | for (i = 0; i < 8; i++) { |
| 49 | __gpio_as_output(GPIO_KEYOUT_BASE + i); |
| 50 | __gpio_clear_pin(GPIO_KEYOUT_BASE + i); |
| 51 | } |
| 52 | |
| 53 | /* enable the TP4, TP5 as UART0 */ |
| 54 | __gpio_jtag_to_uart0(); |
| 55 | |
| 56 | /* |
| 57 | * Initialize UART0 pins, in Ben NanoNote uart0 and keyin8 use the |
| 58 | * same gpio, init the gpio as uart0 cause a keyboard bug. so for |
| 59 | * end user we disable the uart0 |
| 60 | */ |
| 61 | if (__gpio_get_pin(GPIO_KEYIN_BASE + 2) == 0){ |
| 62 | /* if pressed [S] */ |
| 63 | printf("[S] pressed, enable UART0\n"); |
| 64 | gd->boot_option |= BOOT_WITH_ENABLE_UART; |
| 65 | __gpio_as_uart0(); |
| 66 | } else { |
| 67 | __gpio_as_input(GPIO_KEYIN_8); |
| 68 | __gpio_enable_pull(GPIO_KEYIN_8); |
| 69 | } |
| 70 | |
| 71 | __gpio_as_output(GPIO_AUDIO_POP); |
| 72 | __gpio_set_pin(GPIO_AUDIO_POP); |
| 73 | |
| 74 | __gpio_as_output(GPIO_LCD_CS); |
| 75 | __gpio_clear_pin(GPIO_LCD_CS); |
| 76 | |
| 77 | __gpio_as_output(GPIO_AMP_EN); |
| 78 | __gpio_clear_pin(GPIO_AMP_EN); |
| 79 | |
| 80 | __gpio_as_output(GPIO_SDPW_EN); |
| 81 | __gpio_disable_pull(GPIO_SDPW_EN); |
| 82 | __gpio_clear_pin(GPIO_SDPW_EN); |
| 83 | |
| 84 | __gpio_as_input(GPIO_SD_DETECT); |
| 85 | __gpio_disable_pull(GPIO_SD_DETECT); |
| 86 | |
| 87 | __gpio_as_input(GPIO_USB_DETECT); |
| 88 | __gpio_enable_pull(GPIO_USB_DETECT); |
| 89 | |
| 90 | if (__gpio_get_pin(GPIO_KEYIN_BASE + 3) == 0) { |
| 91 | printf("[M] pressed, boot from sd card\n"); |
| 92 | gd->boot_option |= BOOT_FROM_SDCARD; |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | static void cpm_init(void) |
| 97 | { |
| 98 | __cpm_stop_ipu(); |
| 99 | __cpm_stop_cim(); |
| 100 | __cpm_stop_i2c(); |
| 101 | __cpm_stop_ssi(); |
| 102 | __cpm_stop_uart1(); |
| 103 | __cpm_stop_sadc(); |
| 104 | __cpm_stop_uhc(); |
| 105 | __cpm_stop_udc(); |
| 106 | __cpm_stop_aic1(); |
| 107 | /* __cpm_stop_aic2();*/ |
| 108 | } |
| 109 | |
| 110 | void board_early_init(void) |
| 111 | { |
| 112 | gpio_init(); |
| 113 | cpm_init(); |
| 114 | } |
| 115 | |
| 116 | /* U-Boot common routines */ |
| 117 | |
| 118 | int checkboard (void) |
| 119 | { |
| 120 | printf("Board: Qi LB60 (Ingenic XBurst Jz4740 SoC, Speed %d MHz)\n", |
| 121 | gd->cpu_clk / 1000000); |
| 122 | |
| 123 | return 0; /* success */ |
| 124 | } |
| 125 | |
