projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 8bc4ee9e MK |
1 | |
| 2 | Summary | |
| 3 | ======= | |
| 4 | ||
| 5 | This README is about U-Boot support for SAMSUNG's ARM Cortex-A8 based S5PC1xx | |
| 6 | family of SoCs (S5PC100 [1] and S5PC110). | |
| 7 | ||
| 8 | Currently the following board is supported: | |
| 9 | ||
| 10 | * SMDKC100 [2] | |
| 11 | ||
| 12 | Toolchain | |
| 13 | ========= | |
| 14 | ||
| 15 | While ARM Cortex-A8 support ARM v7 instruction set (-march=armv7a) we compile | |
| 16 | with -march=armv5 to allow more compilers to work. For U-Boot code this has | |
| 17 | no performance impact. | |
| 18 | ||
| 19 | Build | |
| 20 | ===== | |
| 21 | ||
| 22 | * SMDKC100 | |
| 23 | ||
| 24 | make smdkc100_config | |
| 25 | make | |
| 26 | ||
| 27 | ||
| 28 | Interfaces | |
| 29 | ========== | |
| 30 | ||
| 31 | cpu | |
| 32 | ||
| 33 | To check SoC: | |
| 34 | ||
| 35 | if (cpu_is_s5pc100()) | |
| 36 | printf("cpu is s5pc100\n"); | |
| 37 | ||
| 38 | or | |
| 39 | ||
| 40 | if (cpu_is_s5pc110()) | |
| 41 | printf("cpu is s5pc110\n"); | |
| 42 | ||
| 43 | gpio | |
| abbe18c3 MK |
44 | |
| 45 | struct s5pc100_gpio *gpio = (struct s5pc100_gpio*)S5PC100_GPIO_BASE; | |
| 46 | ||
| 47 | /* GPA[0] pin set to irq */ | |
| 48 | gpio_cfg_pin(&gpio->gpio_a, 0, GPIO_IRQ); | |
| 49 | ||
| 50 | /* GPA[0] pin set to input */ | |
| 51 | gpio_direction_input(&gpio->gpio_a, 0); | |
| 52 | ||
| 53 | /* GPA[0] pin set to output/high */ | |
| 54 | gpio_direction_output(&gpio->gpio_a, 0, 1); | |
| 55 | ||
| 56 | /* GPA[0] value set to low */ | |
| 57 | gpio_set_value(&gpio->gpio_a, 0, 0); | |
| 58 | ||
| 59 | /* get GPA[0] value */ | |
| 60 | value = gpio_get_value(&gpio->gpio_a, 0); | |
| 8bc4ee9e MK |
61 | |
| 62 | Links | |
| 63 | ===== | |
| 64 | ||
| 65 | [1] S5PC100: | |
| 66 | ||
| 67 | http://www.samsung.com/global/business/semiconductor/productInfo.do? | |
| 68 | fmly_id=229&partnum=S5PC100 | |
| 69 | ||
| 70 | [2] SMDKC100: | |
| 71 | ||
| 72 | http://meritech.co.kr/eng/products/product_view.php?num=28 |