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Nano2G NAND interleaved write support

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25154 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sparmann 2010-03-13 21:44:39 +00:00
parent cb41b2f245
commit 382b6dca08
1 changed files with 54 additions and 9 deletions
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63
firmware/target/arm/s5l8700/ipodnano2g/nand-nano2g.c
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@ -440,8 +440,8 @@ uint32_t nand_read_page(uint32_t bank, uint32_t page, void* databuffer,
return nand_unlock(rc);
}
uint32_t nand_write_page(uint32_t bank, uint32_t page, void* databuffer,
void* sparebuffer, uint32_t doecc)
uint32_t nand_write_page_int(uint32_t bank, uint32_t page, void* databuffer,
void* sparebuffer, uint32_t doecc, uint32_t wait)
{
uint8_t* data = nand_data;
uint8_t* spare = nand_spare;
@ -458,9 +458,14 @@ uint32_t nand_write_page(uint32_t bank, uint32_t page, void* databuffer,
if (spare != sparebuffer) memcpy(spare, sparebuffer, 0x40);
}
else memset(spare, 0xFF, 0x40);
nand_set_fmctrl0(bank, FMCTRL0_ENABLEDMA);
if (nand_send_cmd(NAND_CMD_PROGRAM)) return nand_unlock(1);
if (nand_send_address(page, databuffer ? 0 : 0x800))
return nand_unlock(1);
if (databuffer && data != databuffer) memcpy(data, databuffer, 0x800);
if (databuffer) nand_transfer_data_start(bank, 1, data, 0x800);
if (doecc)
{
if (databuffer && data != databuffer) memcpy(data, databuffer, 0x800);
if (ecc_encode(3, data, nand_ecc)) return nand_unlock(1);
memcpy(&spare[0xC], nand_ecc, 0x28);
memset(nand_ctrl, 0xFF, 0x200);
@ -468,18 +473,15 @@ uint32_t nand_write_page(uint32_t bank, uint32_t page, void* databuffer,
if (ecc_encode(0, nand_ctrl, nand_ecc)) return nand_unlock(1);
memcpy(&spare[0x34], nand_ecc, 0xC);
}
nand_set_fmctrl0(bank, FMCTRL0_ENABLEDMA);
if (nand_send_cmd(NAND_CMD_PROGRAM)) return nand_unlock(1);
if (nand_send_address(page, databuffer ? 0 : 0x800))
return nand_unlock(1);
if (databuffer)
if (nand_transfer_data(bank, 1, data, 0x800))
if (nand_transfer_data_collect(1))
return nand_unlock(1);
if (sparebuffer || doecc)
if (nand_transfer_data(bank, 1, spare, 0x40))
return nand_unlock(1);
if (nand_send_cmd(NAND_CMD_PROGCNFRM)) return nand_unlock(1);
return nand_unlock(nand_wait_status_ready(bank));
if (wait) if (nand_wait_status_ready(bank)) return nand_unlock(1);
return nand_unlock(0);
}
uint32_t nand_block_erase(uint32_t bank, uint32_t page)
@ -631,6 +633,49 @@ uint32_t nand_read_page_fast(uint32_t page, void* databuffer,
return nand_unlock(rc);
}
uint32_t nand_write_page(uint32_t bank, uint32_t page, void* databuffer,
void* sparebuffer, uint32_t doecc)
{
return nand_write_page_int(bank, page, databuffer, sparebuffer, doecc, 1);
}
uint32_t nand_write_page_start(uint32_t bank, uint32_t page, void* databuffer,
void* sparebuffer, uint32_t doecc)
{
if (((uint32_t)databuffer & 0xf) || ((uint32_t)sparebuffer & 0xf)
|| !databuffer || !sparebuffer || !doecc)
return nand_write_page_int(bank, page, databuffer, sparebuffer, doecc, 0);
mutex_lock(&nand_mtx);
nand_last_activity_value = current_tick;
led(true);
if (!nand_powered) nand_power_up();
nand_set_fmctrl0(bank, FMCTRL0_ENABLEDMA);
if (nand_send_cmd(NAND_CMD_PROGRAM))
return nand_unlock(1);
if (nand_send_address(page, 0))
return nand_unlock(1);
nand_transfer_data_start(bank, 1, databuffer, 0x800);
if (ecc_encode(3, databuffer, nand_ecc))
return nand_unlock(1);
memcpy((void*)((uint32_t)sparebuffer + 0xC), nand_ecc, 0x28);
memset(nand_ctrl, 0xFF, 0x200);
memcpy(nand_ctrl, sparebuffer, 0xC);
if (ecc_encode(0, nand_ctrl, nand_ecc))
return nand_unlock(1);
memcpy((void*)((uint32_t)sparebuffer + 0x34), nand_ecc, 0xC);
if (nand_transfer_data_collect(0))
return nand_unlock(1);
if (nand_transfer_data(bank, 1, sparebuffer, 0x40))
return nand_unlock(1);
return nand_unlock(nand_send_cmd(NAND_CMD_PROGCNFRM));
}
uint32_t nand_write_page_collect(uint32_t bank)
{
return nand_wait_status_ready(bank);
}
const struct nand_device_info_type* nand_get_device_type(uint32_t bank)
{
if (nand_type[bank] == 0xFFFFFFFF)