text: /*
   * Authors: Xiangfu Liu <xiangfu@sharism.cc>
   *
   * 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 <asm/io.h>
  #include <asm/jz4740.h>
  
  DECLARE_GLOBAL_DATA_PTR;
  
  static void gpio_init(void)
  {
  	unsigned int i;
  
  	/* Initialize NAND Flash Pins */
  	__gpio_as_nand();
  
  	/* Initialize SDRAM pins */
  	__gpio_as_sdram_16bit_4720();
  
  	/* Initialize LCD pins */
  	__gpio_as_lcd_18bit();
  
  	/* Initialize MSC pins */
  	__gpio_as_msc();
  
  	/* Initialize Other pins */
  	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);
  	}
  
  	__gpio_as_input(GPIO_KEYIN_8);
  	__gpio_enable_pull(GPIO_KEYIN_8);
  
  	/* enable the TP4, TP5 as UART0 */
  	__gpio_jtag_to_uart0();
  
  	__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);
  }
  
  static void cpm_init(void)
  {
  	struct jz4740_cpm *cpm = (struct jz4740_cpm *)JZ4740_CPM_BASE;
  	uint32_t reg = readw(&cpm->clkgr);
  
  	reg |=	CPM_CLKGR_IPU |
  		CPM_CLKGR_CIM |
  		CPM_CLKGR_I2C |
  		CPM_CLKGR_SSI |
  		CPM_CLKGR_UART1 |
  		CPM_CLKGR_SADC |
  		CPM_CLKGR_UHC |
  		CPM_CLKGR_UDC |
  		CPM_CLKGR_AIC1;
  
  	writew(reg, &cpm->clkgr);
  }
  
  int board_early_init_f(void)
  {
  	gpio_init();
  	cpm_init();
  	calc_clocks();	/* calc the clocks */
  	rtc_init();	/* init rtc on any reset */
  
  	return 0;
  }
  
  /* U-Boot common routines */
  int checkboard(void)
  {
  	printf("Board: Qi LB60 (Ingenic XBurst Jz4740 SoC, Speed %ld MHz)\n",
  	       gd->cpu_clk / 1000000);
  
  	return 0;
  }
  