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124 lines
2.4 KiB
C
124 lines
2.4 KiB
C
/*
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* Authors: Xiangfu Liu <xiangfu.z@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 3 of the License, or (at your option) any later version.
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*/
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#include <common.h>
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#include <command.h>
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#include <asm/mipsregs.h>
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#include <asm/jz4740.h>
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DECLARE_GLOBAL_DATA_PTR;
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static void gpio_init(void)
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{
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/*
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* Initialize NAND Flash Pins
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*/
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__gpio_as_nand();
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/*
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* Initialize SDRAM pins
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*/
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__gpio_as_sdram_32bit();
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/*
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* Initialize LCD pins
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*/
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__gpio_as_lcd_8bit();
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/*
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* Initialize MSC pins
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*/
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__gpio_as_msc();
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/*
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* Initialize Other pins
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*/
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unsigned int i;
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for (i = 0; i < 7; i++){
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__gpio_as_input(GPIO_KEYIN_BASE + i);
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__gpio_enable_pull(GPIO_KEYIN_BASE + i);
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}
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for (i = 0; i < 8; i++) {
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__gpio_as_output(GPIO_KEYOUT_BASE + i);
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__gpio_clear_pin(GPIO_KEYOUT_BASE + i);
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}
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/*
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* Initialize UART0 pins, in Ben NanoNote uart0 and keyin8 use the
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* same gpio, init the gpio as uart0 cause a keyboard bug. so for
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* end user we disable the uart0
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*/
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if (__gpio_get_pin(GPIO_KEYIN_BASE + 2) == 0){
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/* if pressed [S] */
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printf("[S] pressed, enable UART0\n");
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gd->boot_option = 5;
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__gpio_as_uart0();
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} else {
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printf("[S] not pressed, disable UART0\n");
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__gpio_as_input(GPIO_KEYIN_8);
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__gpio_enable_pull(GPIO_KEYIN_8);
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}
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__gpio_as_output(GPIO_AUDIO_POP);
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__gpio_set_pin(GPIO_AUDIO_POP);
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__gpio_as_output(GPIO_LCD_CS);
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__gpio_clear_pin(GPIO_LCD_CS);
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__gpio_as_output(GPIO_AMP_EN);
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__gpio_clear_pin(GPIO_AMP_EN);
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__gpio_as_output(GPIO_SDPW_EN);
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__gpio_disable_pull(GPIO_SDPW_EN);
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__gpio_clear_pin(GPIO_SDPW_EN);
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__gpio_as_input(GPIO_SD_DETECT);
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__gpio_disable_pull(GPIO_SD_DETECT);
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__gpio_as_input(GPIO_USB_DETECT);
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__gpio_enable_pull(GPIO_USB_DETECT);
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if (__gpio_get_pin(GPIO_KEYIN_BASE + 3) == 0) {
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printf("[M] pressed, boot from sd card\n");
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gd->boot_option = 1;
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}
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}
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static void cpm_init(void)
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{
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__cpm_stop_ipu();
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__cpm_stop_cim();
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__cpm_stop_i2c();
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__cpm_stop_ssi();
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__cpm_stop_uart1();
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__cpm_stop_sadc();
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__cpm_stop_uhc();
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__cpm_stop_udc();
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__cpm_stop_aic1();
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/* __cpm_stop_aic2();*/
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}
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void board_early_init(void)
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{
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gpio_init();
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cpm_init();
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}
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/* U-Boot common routines */
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int checkboard (void)
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{
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printf("Board: Qi LB60 (Ingenic XBurst Jz4740 SoC, Speed %d MHz)\n",
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gd->cpu_clk/1000000);
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return 0; /* success */
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}
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