static __inline__ int __flashwritecommand(s32 chn, u32 flashaddress, u8 flashdata)
{
s32 ret = 0;
u32 val = 0xE0000000|(flashaddress<<9)|(flashdata<<1);
if (flashaddress > 0x7FFFF)
return 0;
if(!EXI_Select(chn,EXI_DEVICE_0,EXI_SPEED16MHZ)) ret |= 0x01;
if(!EXI_ImmEx(chn,&val,sizeof(u32),EXI_WRITE)) ret |= 0x02;
if(!EXI_ImmEx(chn,&val,sizeof(u32),EXI_WRITE)) ret |= 0x04;
if(!EXI_Deselect(chn)) ret |= 0x08;
if(ret) return 0;
return 1;
}
static __inline__ int __flashreadcommand(s32 chn, u32 flashaddress, u8 *flashdata)
{
s32 ret = 0;
u32 val = 0xF0000000|(flashaddress<<9);
if (flashaddress > 0x7FFFF)
return 0;
if(!EXI_Select(chn,EXI_DEVICE_0,EXI_SPEED16MHZ)) ret |= 0x01;
if(!EXI_ImmEx(chn,&val,sizeof(u32),EXI_WRITE)) ret |= 0x02;
if(!EXI_ImmEx(chn,&val,sizeof(u32),EXI_READ)) ret |= 0x04;
if(!EXI_Deselect(chn)) ret |= 0x08;
if(ret) return 0;
*flashdata = val>>23;
return 1;
}
static u32 __SRAM_Write(void *buffer, u32 loc, u32 length)
{
u32 command = 0xA0000100 + (loc << 6);
EXI_Select(0, 1, 3);
EXI_Imm(0, &command, 4, EXI_WRITE, 0);
EXI_Sync(0);
EXI_ImmEx(0, buffer, 64, EXI_WRITE);
EXI_Sync(0);
EXI_Deselect(0);
return 0;
}
static u32 __SRAM_Read(void *buffer)
{
u32 command = 0x20000100;
EXI_Select(0, 1, 3);
EXI_Imm(0, &command, 4, EXI_WRITE, 0);
EXI_Sync(0);
EXI_ImmEx(0, buffer, 64, EXI_READ);
EXI_Sync(0);
EXI_Deselect(0);
return 0;
}
