| Xiangfu Liu | 3c94554 | 2011-10-12 12:24:06 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Authors: Xiangfu Liu <xiangfu@sharism.cc> |
| 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 <asm/io.h> |
| 12 | #include <asm/jz4740.h> |
| 13 | |
| 14 | DECLARE_GLOBAL_DATA_PTR; |
| 15 | |
| 16 | static void gpio_init(void) |
| 17 | { |
| 18 | unsigned int i; |
| 19 | |
| 20 | /* Initialize NAND Flash Pins */ |
| 21 | __gpio_as_nand(); |
| 22 | |
| 23 | /* Initialize SDRAM pins */ |
| 24 | __gpio_as_sdram_16bit_4720(); |
| 25 | |
| 26 | /* Initialize LCD pins */ |
| 27 | __gpio_as_lcd_18bit(); |
| 28 | |
| 29 | /* Initialize MSC pins */ |
| 30 | __gpio_as_msc(); |
| 31 | |
| 32 | /* Initialize Other pins */ |
| 33 | for (i = 0; i < 7; i++) { |
| 34 | __gpio_as_input(GPIO_KEYIN_BASE + i); |
| 35 | __gpio_enable_pull(GPIO_KEYIN_BASE + i); |
| 36 | } |
| 37 | |
| 38 | for (i = 0; i < 8; i++) { |
| 39 | __gpio_as_output(GPIO_KEYOUT_BASE + i); |
| 40 | __gpio_clear_pin(GPIO_KEYOUT_BASE + i); |
| 41 | } |
| 42 | |
| 43 | __gpio_as_input(GPIO_KEYIN_8); |
| 44 | __gpio_enable_pull(GPIO_KEYIN_8); |
| 45 | |
| 46 | /* enable the TP4, TP5 as UART0 */ |
| 47 | __gpio_jtag_to_uart0(); |
| 48 | |
| 49 | __gpio_as_output(GPIO_AUDIO_POP); |
| 50 | __gpio_set_pin(GPIO_AUDIO_POP); |
| 51 | |
| 52 | __gpio_as_output(GPIO_LCD_CS); |
| 53 | __gpio_clear_pin(GPIO_LCD_CS); |
| 54 | |
| 55 | __gpio_as_output(GPIO_AMP_EN); |
| 56 | __gpio_clear_pin(GPIO_AMP_EN); |
| 57 | |
| 58 | __gpio_as_output(GPIO_SDPW_EN); |
| 59 | __gpio_disable_pull(GPIO_SDPW_EN); |
| 60 | __gpio_clear_pin(GPIO_SDPW_EN); |
| 61 | |
| 62 | __gpio_as_input(GPIO_SD_DETECT); |
| 63 | __gpio_disable_pull(GPIO_SD_DETECT); |
| 64 | |
| 65 | __gpio_as_input(GPIO_USB_DETECT); |
| 66 | __gpio_enable_pull(GPIO_USB_DETECT); |
| 67 | } |
| 68 | |
| 69 | static void cpm_init(void) |
| 70 | { |
| 71 | struct jz4740_cpm *cpm = (struct jz4740_cpm *)JZ4740_CPM_BASE; |
| 72 | uint32_t reg = readw(&cpm->clkgr); |
| 73 | |
| 74 | reg |= CPM_CLKGR_IPU | |
| 75 | CPM_CLKGR_CIM | |
| 76 | CPM_CLKGR_I2C | |
| 77 | CPM_CLKGR_SSI | |
| 78 | CPM_CLKGR_UART1 | |
| 79 | CPM_CLKGR_SADC | |
| 80 | CPM_CLKGR_UHC | |
| 81 | CPM_CLKGR_UDC | |
| 82 | CPM_CLKGR_AIC1; |
| 83 | |
| 84 | writew(reg, &cpm->clkgr); |
| 85 | } |
| 86 | |
| 87 | int board_early_init_f(void) |
| 88 | { |
| 89 | gpio_init(); |
| 90 | cpm_init(); |
| 91 | calc_clocks(); /* calc the clocks */ |
| 92 | rtc_init(); /* init rtc on any reset */ |
| 93 | |
| 94 | return 0; |
| 95 | } |
| 96 | |
| 97 | /* U-Boot common routines */ |
| 98 | int checkboard(void) |
| 99 | { |
| 100 | printf("Board: Qi LB60 (Ingenic XBurst Jz4740 SoC, Speed %ld MHz)\n", |
| 101 | gd->cpu_clk / 1000000); |
| 102 | |
| 103 | return 0; |
| 104 | } |