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doc/README.s5pc1xx 1.22 KB
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  Summary
  =======
  
  This README is about U-Boot support for SAMSUNG's ARM Cortex-A8 based S5PC1xx
  family of SoCs (S5PC100 [1] and S5PC110).
  
  Currently the following board is supported:
  
  * SMDKC100 [2]
  
  Toolchain
  =========
  
  While ARM Cortex-A8 support ARM v7 instruction set (-march=armv7a) we compile
  with -march=armv5 to allow more compilers to work. For U-Boot code this has
  no performance impact.
  
  Build
  =====
  
  * SMDKC100
  
  make smdkc100_config
  make
  
  
  Interfaces
  ==========
  
  cpu
  
  To check SoC:
  
  	if (cpu_is_s5pc100())
  		printf("cpu is s5pc100
  ");
  
  	or
  
  	if (cpu_is_s5pc110())
  		printf("cpu is s5pc110
  ");
  
  gpio
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  	struct s5pc100_gpio *gpio = (struct s5pc100_gpio*)S5PC100_GPIO_BASE;
  
  	/* GPA[0] pin set to irq */
  	gpio_cfg_pin(&gpio->gpio_a, 0, GPIO_IRQ);
  
  	/* GPA[0] pin set to input */
  	gpio_direction_input(&gpio->gpio_a, 0);
  
  	/* GPA[0] pin set to output/high */
  	gpio_direction_output(&gpio->gpio_a, 0, 1);
  
  	/* GPA[0] value set to low */
  	gpio_set_value(&gpio->gpio_a, 0, 0);
  
  	/* get GPA[0] value */
  	value = gpio_get_value(&gpio->gpio_a, 0);
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  Links
  =====
  
  [1] S5PC100:
  
  http://www.samsung.com/global/business/semiconductor/productInfo.do?
  fmly_id=229&partnum=S5PC100
  
  [2] SMDKC100:
  
  http://meritech.co.kr/eng/products/product_view.php?num=28