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Nano2G VFL/FTL: Use fast writes

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25172 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sparmann 2010-03-14 16:12:28 +00:00
parent 4d8bf06bf3
commit c99d4fd709
1 changed files with 53 additions and 34 deletions
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85
firmware/target/arm/s5l8700/ipodnano2g/ftl-nano2g.c
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@ -881,52 +881,71 @@ uint32_t ftl_vfl_read_fast(uint32_t vpage, void* buffer, void* sparebuffer,
#ifndef FTL_READONLY
/* Writes the specified vPage, dealing with all kinds of trouble */
uint32_t ftl_vfl_write_single(uint32_t vpage, void* buffer, void* sparebuffer)
uint32_t ftl_vfl_write(uint32_t vpage, uint32_t count,
void* buffer, void* sparebuffer)
{
uint32_t i, j;
uint32_t ppb = (*ftl_nand_type).pagesperblock * ftl_banks;
uint32_t syshyperblocks = (*ftl_nand_type).blocks
- (*ftl_nand_type).userblocks - 0x17;
uint32_t abspage = vpage + ppb * syshyperblocks;
if (abspage >= (*ftl_nand_type).blocks * ppb || abspage < ppb)
if (abspage + count > (*ftl_nand_type).blocks * ppb || abspage < ppb)
panicf("FTL: Trying to write out-of-bounds vPage %u",
(unsigned)vpage);
//return 4;
uint32_t bank = abspage % ftl_banks;
uint32_t block = abspage / ((*ftl_nand_type).pagesperblock * ftl_banks);
uint32_t bank[5];
uint32_t block[5];
uint32_t physpage[5];
for (i = 0; i < count; i++, abspage++)
{
for (j = ftl_banks; j > 0; j--)
{
bank[j] = bank[j - 1];
block[j] = block[j - 1];
physpage[j] = physpage[j - 1];
}
bank[0] = abspage % ftl_banks;
block[0] = abspage / ((*ftl_nand_type).pagesperblock * ftl_banks);
uint32_t page = (abspage / ftl_banks) % (*ftl_nand_type).pagesperblock;
uint32_t physblock = ftl_vfl_get_physical_block(bank, block);
uint32_t physpage = physblock * (*ftl_nand_type).pagesperblock + page;
uint32_t physblock = ftl_vfl_get_physical_block(bank[0], block[0]);
physpage[0] = physblock * (*ftl_nand_type).pagesperblock + page;
if (nand_write_page(bank, physpage, buffer, sparebuffer, 1) == 0)
return 0;
if ((nand_read_page(bank, physpage, ftl_buffer,
&ftl_sparebuffer[0], 1, 1) & 0x11F) == 0)
return 0;
panicf("FTL: write error on vPage %u, bank %u, pPage %u",
(unsigned)vpage, (unsigned)bank, (unsigned)physpage);
ftl_vfl_log_trouble(bank, block);
return 1;
}
#endif
#ifndef FTL_READONLY
/* Writes the specified vPage, dealing with all kinds of trouble */
uint32_t ftl_vfl_write(uint32_t vpage, uint32_t count, void* buffer, void* sparebuffer)
if (i >= ftl_banks)
if (nand_write_page_collect(bank[ftl_banks]))
if (nand_read_page(bank[ftl_banks], physpage[ftl_banks],
ftl_buffer, &ftl_sparebuffer[0], 1, 1) & 0x11F)
{
uint32_t i;
for (i = 0; i < count; i++)
{
void* databuf = (void*)0;
void* sparebuf = (void*)0;
if (buffer) databuf = (void*)((uint32_t)buffer + 0x800 * i);
if (sparebuffer) sparebuf = (void*)((uint32_t)sparebuffer + 0x40 * i);
uint32_t rc = ftl_vfl_write_single(vpage + i, databuf, sparebuf);
if (rc) return rc;
panicf("FTL: write error (2) on vPage %u, bank %u, pPage %u",
(unsigned)(vpage + i - ftl_banks),
(unsigned)bank[ftl_banks],
(unsigned)physpage[ftl_banks]);
ftl_vfl_log_trouble(bank[ftl_banks], block[ftl_banks]);
}
if (nand_write_page_start(bank[0], physpage[0],
(void*)((uint32_t)buffer + 0x800 * i),
(void*)((uint32_t)sparebuffer + 0x40 * i), 1))
if (nand_read_page(bank[0], physpage[0], ftl_buffer,
&ftl_sparebuffer[0], 1, 1) & 0x11F)
{
panicf("FTL: write error (1) on vPage %u, bank %u, pPage %u",
(unsigned)(vpage + i), (unsigned)bank[0], (unsigned)physpage[0]);
ftl_vfl_log_trouble(bank[0], block[0]);
}
}
for (i = count < ftl_banks ? count : ftl_banks; i > 0; i--)
if (nand_write_page_collect(bank[i - 1]))
if (nand_read_page(bank[i - 1], physpage[i - 1],
ftl_buffer, &ftl_sparebuffer[0], 1, 1) & 0x11F)
{
panicf("FTL: write error (2) on vPage %u, bank %u, pPage %u",
(unsigned)(vpage + count - i),
(unsigned)bank[i - 1], (unsigned)physpage[i - 1]);
ftl_vfl_log_trouble(bank[i - 1], block[i - 1]);
}
return 0;
}
#endif