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/*
* Authors: Xiangfu Liu <xiangfu.z@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 3 of the License, or (at your option) any later version.
*/
#include <common.h>
#include <command.h>
#include <asm/mipsregs.h>
#include <asm/jz4740.h>
DECLARE_GLOBAL_DATA_PTR;
static void gpio_init(void)
{
/*
* Initialize NAND Flash Pins
*/
__gpio_as_nand();
/*
* Initialize SDRAM pins
*/
__gpio_as_sdram_32bit();
/*
* Initialize LCD pins
*/
__gpio_as_lcd_18bit();
/*
* Initialize MSC pins
*/
__gpio_as_msc();
/*
* Initialize Other pins
*/
unsigned int i;
for (i = 0; i < 7; i++){
__gpio_as_input(GPIO_KEYIN_BASE + i);
__gpio_enable_pull(GPIO_KEYIN_BASE + i);
}
for (i = 0; i < 8; i++) {
__gpio_as_output(GPIO_KEYOUT_BASE + i);
__gpio_clear_pin(GPIO_KEYOUT_BASE + i);
}
/*
* Initialize UART0 pins, in Ben NanoNote uart0 and keyin8 use the
* same gpio, init the gpio as uart0 cause a keyboard bug. so for
* end user we disable the uart0
*/
if (__gpio_get_pin(GPIO_KEYIN_BASE + 2) == 0){
/* if pressed [S] */
printf("[S] pressed, enable UART0\n");
gd->boot_option = 5;
__gpio_as_uart0();
} else {
printf("[S] not pressed, disable UART0\n");
__gpio_as_input(GPIO_KEYIN_8);
__gpio_enable_pull(GPIO_KEYIN_8);
}
__gpio_as_output(GPIO_AUDIO_POP);
__gpio_set_pin(GPIO_AUDIO_POP);
__gpio_as_output(GPIO_LCD_CS);
__gpio_clear_pin(GPIO_LCD_CS);
__gpio_as_output(GPIO_AMP_EN);
__gpio_clear_pin(GPIO_AMP_EN);
__gpio_as_output(GPIO_SDPW_EN);
__gpio_disable_pull(GPIO_SDPW_EN);
__gpio_clear_pin(GPIO_SDPW_EN);
__gpio_as_input(GPIO_SD_DETECT);
__gpio_disable_pull(GPIO_SD_DETECT);
__gpio_as_input(GPIO_USB_DETECT);
__gpio_enable_pull(GPIO_USB_DETECT);
if (__gpio_get_pin(GPIO_KEYIN_BASE + 3) == 0) {
printf("[M] pressed, boot from sd card\n");
gd->boot_option = 1;
}
}
static void cpm_init(void)
{
__cpm_stop_ipu();
__cpm_stop_cim();
__cpm_stop_i2c();
__cpm_stop_ssi();
__cpm_stop_uart1();
__cpm_stop_sadc();
__cpm_stop_uhc();
__cpm_stop_udc();
__cpm_stop_aic1();
/* __cpm_stop_aic2();*/
}
void board_early_init(void)
{
gpio_init();
cpm_init();
}
/* U-Boot common routines */
int checkboard (void)
{
printf("Board: Qi LB60 (Ingenic XBurst Jz4740 SoC, Speed %d MHz)\n",
gd->cpu_clk/1000000);
return 0; /* success */
}
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