1、修改/home/data/AR9344/SDK/sdk/boot/u-boot/include/configs/ar7240.h文件
24 #ifdef CONFIG_ROOTFS_FLASH
25 #define CONFIG_BOOTARGS "board=DR342 console=ttyS0,115200 mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,14528k(rootfs),1472k(kernel),64k(art),16000k@0x50000(firmware),16384k@0x0(all)"
26 #else
27 #define CONFIG_BOOTARGS ""
28 #endif
2、修改/home/data/AR9344/SDK/sdk/boot/u-boot/common/cmd_bootm.c文件
156 int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
157 {
158 ulong iflag;
159 ulong addr;
160 ulong data, len, checksum;
161 ulong *len_ptr;
162 uint unc_len = CFG_BOOTM_LEN;
163 int i, verify;
164 char *name, *s;
165 int (*appl)(int, char *[]);
166 image_header_t *hdr = &header;
167
168 s = getenv ("verify");
169 verify = (s && (*s == 'n')) ? 0 : 1;
170
171 if (argc < 2) {
172 addr = load_addr;
173 } else {
174 addr = simple_strtoul(argv[1], NULL, 16);
175 }
176
177 addr = 0x9fe80000;
178
179 SHOW_BOOT_PROGRESS (1);
180 printf ("## Booting image at %08lx ...\n", addr);
3、修改/home/data/AR9344/SDK/sdk/boot/u-boot/include/ar7240_soc.h文件
438 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_MSB 15
439 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_LSB 8
440 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_MASK 0x0000ff00
441 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_GET(x) (((x) & GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_MASK) >> GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_LSB)
442 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_SET(x) (((x) << GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_LSB) & GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_MASK)
443 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_RESET 0x1 // 1
444 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_MSB 7
445 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_LSB 0
446 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_MASK 0x000000ff
447 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_GET(x) (((x) & GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_MASK) >> GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_LSB)
448 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_SET(x) (((x) << GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_LSB) & GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_MASK)
449 #define GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_RESET 0x0 // 0
450 #define GPIO_OUT_FUNCTION4_ADDRESS 0x1804003c
451
452 /*
453 * IRQ Map.
454 * There are 4 conceptual ICs in the system. We generally give a block of 16
455 * irqs to each IC.
456 * CPU: 0 - 0xf
457 * MISC: 0x10 - 0x1f
458 * GPIO: 0x20 - 0x2f
459 * PCI : 0x30 - 0x40
460 *
461 */
462 #define AR7240_CPU_IRQ_BASE 0x00
463 #define AR7240_MISC_IRQ_BASE 0x10
464 #define AR7240_GPIO_IRQ_BASE 0x20
465 #define AR7240_PCI_IRQ_BASE 0x30
4、修改/home/data/AR9344/SDK/sdk/boot/u-boot/board/ar7240/db12x/db12x.c文件
61 void wasp_gpio_config(void)
62 {
63 /* disable the CLK_OBS on GPIO_4 and set GPIO4 as input */
64 ar7240_reg_rmw_clear(GPIO_OE_ADDRESS, (1 << 4));
65 ar7240_reg_rmw_clear(GPIO_OUT_FUNCTION1_ADDRESS, GPIO_OUT_FUNCTION1_ENABLE_GPIO_4_MASK);
66 ar7240_reg_rmw_set(GPIO_OUT_FUNCTION1_ADDRESS, GPIO_OUT_FUNCTION1_ENABLE_GPIO_4_SET(0x80));
67 ar7240_reg_rmw_set(GPIO_OE_ADDRESS, (1 << 4));
68
69 ar7240_reg_rmw_clear(GPIO_OE_ADDRESS, (1 << 16));
70 ar7240_reg_rmw_clear(GPIO_OUT_FUNCTION4_ADDRESS, GPIO_OUT_FUNCTION4_ENABLE_GPIO_16_MASK);
71 ar7240_reg_rmw_clear(GPIO_OE_ADDRESS, (1 << 17));
72 ar7240_reg_rmw_clear(GPIO_OUT_FUNCTION4_ADDRESS, GPIO_OUT_FUNCTION4_ENABLE_GPIO_17_MASK);
73 }
