18bc4ee9eSMinkyu Kang 28bc4ee9eSMinkyu KangSummary 38bc4ee9eSMinkyu Kang======= 48bc4ee9eSMinkyu Kang 58bc4ee9eSMinkyu KangThis README is about U-Boot support for SAMSUNG's ARM Cortex-A8 based S5PC1xx 68bc4ee9eSMinkyu Kangfamily of SoCs (S5PC100 [1] and S5PC110). 78bc4ee9eSMinkyu Kang 88bc4ee9eSMinkyu KangCurrently the following board is supported: 98bc4ee9eSMinkyu Kang 108bc4ee9eSMinkyu Kang* SMDKC100 [2] 118bc4ee9eSMinkyu Kang 128bc4ee9eSMinkyu KangToolchain 138bc4ee9eSMinkyu Kang========= 148bc4ee9eSMinkyu Kang 158bc4ee9eSMinkyu KangWhile ARM Cortex-A8 support ARM v7 instruction set (-march=armv7a) we compile 168bc4ee9eSMinkyu Kangwith -march=armv5 to allow more compilers to work. For U-Boot code this has 178bc4ee9eSMinkyu Kangno performance impact. 188bc4ee9eSMinkyu Kang 198bc4ee9eSMinkyu KangBuild 208bc4ee9eSMinkyu Kang===== 218bc4ee9eSMinkyu Kang 228bc4ee9eSMinkyu Kang* SMDKC100 238bc4ee9eSMinkyu Kang 248bc4ee9eSMinkyu Kangmake smdkc100_config 258bc4ee9eSMinkyu Kangmake 268bc4ee9eSMinkyu Kang 278bc4ee9eSMinkyu Kang 288bc4ee9eSMinkyu KangInterfaces 298bc4ee9eSMinkyu Kang========== 308bc4ee9eSMinkyu Kang 318bc4ee9eSMinkyu Kangcpu 328bc4ee9eSMinkyu Kang 338bc4ee9eSMinkyu KangTo check SoC: 348bc4ee9eSMinkyu Kang 358bc4ee9eSMinkyu Kang if (cpu_is_s5pc100()) 368bc4ee9eSMinkyu Kang printf("cpu is s5pc100\n"); 378bc4ee9eSMinkyu Kang 388bc4ee9eSMinkyu Kang or 398bc4ee9eSMinkyu Kang 408bc4ee9eSMinkyu Kang if (cpu_is_s5pc110()) 418bc4ee9eSMinkyu Kang printf("cpu is s5pc110\n"); 428bc4ee9eSMinkyu Kang 438bc4ee9eSMinkyu Kanggpio 44*abbe18c3SMinkyu Kang 45*abbe18c3SMinkyu Kang struct s5pc100_gpio *gpio = (struct s5pc100_gpio*)S5PC100_GPIO_BASE; 46*abbe18c3SMinkyu Kang 47*abbe18c3SMinkyu Kang /* GPA[0] pin set to irq */ 48*abbe18c3SMinkyu Kang gpio_cfg_pin(&gpio->gpio_a, 0, GPIO_IRQ); 49*abbe18c3SMinkyu Kang 50*abbe18c3SMinkyu Kang /* GPA[0] pin set to input */ 51*abbe18c3SMinkyu Kang gpio_direction_input(&gpio->gpio_a, 0); 52*abbe18c3SMinkyu Kang 53*abbe18c3SMinkyu Kang /* GPA[0] pin set to output/high */ 54*abbe18c3SMinkyu Kang gpio_direction_output(&gpio->gpio_a, 0, 1); 55*abbe18c3SMinkyu Kang 56*abbe18c3SMinkyu Kang /* GPA[0] value set to low */ 57*abbe18c3SMinkyu Kang gpio_set_value(&gpio->gpio_a, 0, 0); 58*abbe18c3SMinkyu Kang 59*abbe18c3SMinkyu Kang /* get GPA[0] value */ 60*abbe18c3SMinkyu Kang value = gpio_get_value(&gpio->gpio_a, 0); 618bc4ee9eSMinkyu Kang 628bc4ee9eSMinkyu KangLinks 638bc4ee9eSMinkyu Kang===== 648bc4ee9eSMinkyu Kang 658bc4ee9eSMinkyu Kang[1] S5PC100: 668bc4ee9eSMinkyu Kang 678bc4ee9eSMinkyu Kanghttp://www.samsung.com/global/business/semiconductor/productInfo.do? 688bc4ee9eSMinkyu Kangfmly_id=229&partnum=S5PC100 698bc4ee9eSMinkyu Kang 708bc4ee9eSMinkyu Kang[2] SMDKC100: 718bc4ee9eSMinkyu Kang 728bc4ee9eSMinkyu Kanghttp://meritech.co.kr/eng/products/product_view.php?num=28 73