big cosmetic offensive on flashrom. (trivial)
* Give decent names to virt_addr and virt_addr_2 * add some comments * move virtual addresses to the end of the struct, so they dont mess up the initializer. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2689 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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committed by
Stefan Reinauer
parent
f2d1428120
commit
f8eea5cd1c
@@ -48,7 +48,8 @@ void print_82802ab_status(uint8_t status)
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int probe_82802ab(struct flashchip *flash)
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{
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volatile uint8_t *bios = flash->virt_addr;
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volatile uint8_t *bios = flash->virtual_memory;
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volatile uint8_t *registers;
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uint8_t id1, id2;
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#if 0
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@@ -65,28 +66,28 @@ int probe_82802ab(struct flashchip *flash)
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id1 = *(volatile uint8_t *)bios;
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id2 = *(volatile uint8_t *)(bios + 0x01);
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#if 1
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/* Leave ID mode */
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*(volatile uint8_t *)(bios + 0x5555) = 0xAA;
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*(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
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*(volatile uint8_t *)(bios + 0x5555) = 0xF0;
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#endif
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myusec_delay(10);
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printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
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if (id1 == flash->manufacture_id && id2 == flash->model_id) {
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size_t size = flash->total_size * 1024;
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// we need to mmap the write-protect space.
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bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
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registers = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
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fd_mem, (off_t) (0 - 0x400000 - size));
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if (bios == MAP_FAILED) {
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if (registers == MAP_FAILED) {
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// it's this part but we can't map it ...
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perror("Error MMAP memory using " MEM_DEV);
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exit(1);
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}
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flash->virt_addr_2 = bios;
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flash->virtual_registers = registers;
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return 1;
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}
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@@ -123,8 +124,8 @@ uint8_t wait_82802ab(volatile uint8_t *bios)
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}
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int erase_82802ab_block(struct flashchip *flash, int offset)
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{
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volatile uint8_t *bios = flash->virt_addr + offset;
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volatile uint8_t *wrprotect = flash->virt_addr_2 + offset + 2;
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volatile uint8_t *bios = flash->virtual_memory + offset;
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volatile uint8_t *wrprotect = flash->virtual_registers + offset + 2;
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uint8_t status;
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// clear status register
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@@ -141,7 +142,7 @@ int erase_82802ab_block(struct flashchip *flash, int offset)
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*(volatile uint8_t *)(bios) = 0xd0;
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myusec_delay(10);
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// now let's see what the register is
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status = wait_82802ab(flash->virt_addr);
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status = wait_82802ab(flash->virtual_memory);
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//print_82802ab_status(status);
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printf("DONE BLOCK 0x%x\n", offset);
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return (0);
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@@ -178,7 +179,7 @@ int write_82802ab(struct flashchip *flash, uint8_t *buf)
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int i;
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int total_size = flash->total_size * 1024;
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int page_size = flash->page_size;
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volatile uint8_t *bios = flash->virt_addr;
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volatile uint8_t *bios = flash->virtual_memory;
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erase_82802ab(flash);
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if (*bios != 0xff) {
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