| 标题 | 阅读 | 评论 | 转发 | 发布日期 | |
|---|---|---|---|---|---|
| barebox | 2687 | 0 | 0 | 2011-03-20 | |
| vivi分析-顶层Makefile | 3200 | 0 | 2 | 2009-12-30 | |
| uboot移植到an2410全记录 | 3240 | 0 | 0 | 2009-12-21 | |
| 7. bootm命令 | 13417 | 0 | 2 | 2009-12-19 | |
| 6. main_loop() | 2585 | 0 | 0 | 2009-12-19 | |
| 5. console_init_r | 2431 | 0 | 0 | 2009-12-19 | |
| 4. devices_init () | 3651 | 1 | 1 | 2009-12-19 | |
| 3. env_relocate | 2897 | 0 | 1 | 2009-12-17 | |
| 2. nand初始化 | 4076 | 0 | 2 | 2009-11-19 | |
| uboot浅析 - start_armboot | 4820 | 0 | 3 | 2009-11-18 | |
| 1. gd_t && bd_t | 2003 | 0 | 1 | 2009-11-18 | |
| 7. dram_init | 2284 | 0 | 1 | 2009-11-18 | |
| 6. display_banner && print_cpuinfo | 2019 | 0 | 1 | 2009-11-18 | |
| 6. console_init_f | 1521 | 0 | 0 | 2009-11-18 | |
| 5. serial_init | 2760 | 0 | 0 | 2009-11-18 | |
| 4. init_baudrate | 1186 | 0 | 0 | 2009-11-18 | |
| 3. env_init | 2922 | 0 | 0 | 2009-11-18 | |
| 2. interrupt_init | 2032 | 0 | 1 | 2009-11-18 | |
| 1. board_init | 2883 | 0 | 2 | 2009-11-18 | |
| uboot 初始化循环体 | 2298 | 0 | 1 | 2009-11-18 |
config20102009-11-19 19:42
外设fpga做的8k的memory，用arm9去读写它，在linux2.6系统下；这样做对吗？
实际地址映射到虚拟内存中，用得到的虚拟地址去读写。
地址总线：a1-a14 数据总线：d0-d15
#define FPGA_BASE_ADDR (0x18000000)//片选为nGCS3
#define BWSCON (0x48000000)
#define BANKCON3 (0x48000010)
#define IP_SIZE (0x1FFF)//13根地址线8K的物理空间
static void *bwscon,*bankcon3,*fpga_base_addr;
bwscon = ioremap_nocache(BWSCON,0x0000004);
bankcon3 = ioremap_nocache(BANKCON3,0x0000004);
fpga_base_addr = ioremap_nocache(FPGA_BASE_ADDR,IP_SIZE);
writel(readl(bwscon)|0xD000,bwscon);
writel(0x7FFC,bankcon3);
for(i=0;i
