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完善flash操作的代码

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tpu
2025-05-12 00:28:30 +08:00
parent 0721c588f0
commit d3dd1f3d9b
1 changed files with 26 additions and 13 deletions
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35
src/epd/spi_flash.c
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@@ -114,20 +114,23 @@ int sf_readid(void)
return __REV(id);
}
int sf_status(void)
int sf_status(int id)
{
int status;
int cmd = (id)? 0x3500 : 0x0500;
fspi_set_bitmode(BIT_16);
FSPI_CS(0);
status = fspi_trans(0x0500);
status = fspi_trans(cmd);
FSPI_CS(1);
return status;
return status&0xff;
}
int sf_wstat(int stat)
int sf_wstat(int id, int stat)
{
int cmd = (id)? 0x3100 : 0x0100;
cmd |= stat;
// status write enable
fspi_set_bitmode(BIT_8);
@@ -137,7 +140,7 @@ int sf_wstat(int stat)
fspi_set_bitmode(BIT_16);
FSPI_CS(0);
fspi_trans(0x0100|stat);
fspi_trans(cmd);
FSPI_CS(1);
return 0;
@@ -156,17 +159,18 @@ int sf_wen(int en)
return 0;
}
int sf_wait()
int sf_wait(void)
{
int status;
while(1){
status = sf_status();
status = sf_status(0);
if((status&1)==0)
break;
}
return 0;
status |= sf_status(1)<<8;
return status;
}
@@ -187,8 +191,8 @@ int sf_sector_erase(int cmd, int addr, int wait)
int sf_erase(int addr, int size, int wait)
{
while(size){
if((addr%0x8000)==0 && size<=0x8000){
while(size>0){
if((addr%0x8000)==0 && size>=0x8000){
sf_sector_erase(ERASE_32K, addr, wait);
addr += 0x8000;
size -= 0x8000;
@@ -321,6 +325,15 @@ int selflash(int otp_boot)
int id = sf_readid();
printk("Flash ID: %08x\n", id);
//测试status
int stat0 = sf_status(0);
int stat1 = sf_status(1);
printk(" status: %02x %02x\n", stat0, stat1);
sf_wen(1);
stat0 = sf_status(0);
stat1 = sf_status(1);
printk(" status: %02x %02x\n", stat0, stat1);
int region_table = (int)&Region$$Table$$Base;
int firm_size = *(u32*)(region_table+0x10) - 0x07fc0000;
printk("Firm size: %08x\n", firm_size);
@@ -346,7 +359,7 @@ int selflash(int otp_boot)
// 读image header
sf_read(image_addr[0], 16, pbuf+0 );
sf_read(image_addr[0], 16, pbuf+16);
sf_read(image_addr[1], 16, pbuf+16);
printk("Product iamge0: %08x: %08x %08x %08x\n", image_addr[0], __REV(p32[0]), p32[1], p32[2]);
printk(" iamge1: %08x: %08x %08x %08x\n", image_addr[1], __REV(p32[4]), p32[5], p32[6]);