openwrtv3/package/uboot-xburst/files/board/n516/n516.c

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/*
* (C) Copyright 2006
* Ingenic Semiconductor, <jlwei@ingenic.cn>
*
* 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 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <asm/mipsregs.h>
#include <asm/jz4740.h>
#include <asm/addrspace.h>
#include <asm/cacheops.h>
void _machine_restart(void)
{
__wdt_select_extalclk();
__wdt_select_clk_div64();
__wdt_set_data(100);
__wdt_set_count(0);
__tcu_start_wdt_clock();
__wdt_start();
while(1);
}
static void gpio_init(void)
{
REG_GPIO_PXPES(0) = 0xffffffff;
REG_GPIO_PXPES(1) = 0xffffffff;
REG_GPIO_PXPES(2) = 0xffffffff;
REG_GPIO_PXPES(3) = 0xffffffff;
/*
* Initialize NAND Flash Pins
*/
__gpio_as_nand();
/*
* Initialize SDRAM pins
*/
__gpio_as_sdram_32bit();
/*
* Initialize UART0 pins
*/
__gpio_as_uart0();
/*
* Initialize MSC pins
*/
__gpio_as_msc();
/*
* Initialize LCD pins
*/
__gpio_as_lcd_16bit();
/*
* Initialize Other pins
*/
__gpio_as_output(GPIO_SD_VCC_EN_N);
__gpio_clear_pin(GPIO_SD_VCC_EN_N);
__gpio_as_input(GPIO_SD_CD_N);
__gpio_disable_pull(GPIO_SD_CD_N);
__gpio_as_output(GPIO_DISP_OFF_N);
__gpio_as_output(GPIO_LED_EN);
__gpio_set_pin(GPIO_LED_EN);
__gpio_as_input(127);
}
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();
__cpm_suspend_udcphy();
__cpm_suspend_usbphy();
}
//----------------------------------------------------------------------
// board early init routine
void board_early_init(void)
{
gpio_init();
cpm_init();
}
//----------------------------------------------------------------------
// U-Boot common routines
int checkboard (void)
{
DECLARE_GLOBAL_DATA_PTR;
printf("Board: Hanvon n516 e-book (CPU Speed %d MHz)\n",
gd->cpu_clk/1000000);
return 0; /* success */
}