| 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\n"); | |
| or | |
| if (cpu_is_s5pc110()) | |
| printf("cpu is s5pc110\n"); | |
| gpio | |
| 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); | |
| 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 |