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correct ECC for pages read via IPC

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bushing 2009-05-02 04:33:40 -07:00
parent 1d66f36578
commit 5811742c07
1 changed files with 4 additions and 1 deletions
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3
nand.c
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@ -74,6 +74,7 @@ static u8 ipc_data[PAGE_SIZE] MEM2_BSS ALIGNED(32);
static u8 ipc_ecc[ECC_BUFFER_ALLOC] MEM2_BSS ALIGNED(128); //128 alignment REQUIRED static u8 ipc_ecc[ECC_BUFFER_ALLOC] MEM2_BSS ALIGNED(128); //128 alignment REQUIRED
static volatile int irq_flag; static volatile int irq_flag;
static u32 last_page_read = 0;
void nand_irq(void) void nand_irq(void)
{ {
@ -95,6 +96,7 @@ void nand_irq(void)
dc_flushrange((void*)current_request.args[0], 0x40); dc_flushrange((void*)current_request.args[0], 0x40);
break; break;
case IPC_NAND_READ: case IPC_NAND_READ:
err = nand_correct(last_page_read, ipc_data, ipc_ecc);
memcpy32((void*)current_request.args[1], ipc_data, PAGE_SIZE); memcpy32((void*)current_request.args[1], ipc_data, PAGE_SIZE);
memcpy32((void*)current_request.args[2], ipc_ecc, ECC_BUFFER_SIZE); memcpy32((void*)current_request.args[2], ipc_ecc, ECC_BUFFER_SIZE);
dc_flushrange((void*)current_request.args[1], PAGE_SIZE); dc_flushrange((void*)current_request.args[1], PAGE_SIZE);
@ -181,6 +183,7 @@ void nand_get_status(u8 *status_buf) {
void nand_read_page(u32 pageno, void *data, void *ecc) { void nand_read_page(u32 pageno, void *data, void *ecc) {
irq_flag = 0; irq_flag = 0;
last_page_read = pageno; // needed for error reporting
__nand_set_address(0, pageno); __nand_set_address(0, pageno);
nand_send_command(NAND_READ_PRE, 0x1f, 0, 0); nand_send_command(NAND_READ_PRE, 0x1f, 0, 0);