diff options
| author | hailfinger <hailfinger@2b7e53f0-3cfb-0310-b3e9-8179ed1497e1> | 2010-07-17 22:42:33 +0000 |
|---|---|---|
| committer | hailfinger <hailfinger@2b7e53f0-3cfb-0310-b3e9-8179ed1497e1> | 2010-07-17 22:42:33 +0000 |
| commit | 117597c94ca5a46a33e2fdaf3b0866241ba7da88 (patch) | |
| tree | fd28100f4a2dfcf557dfbe62854a4fc0a0a47883 /drkaiser.c | |
| parent | 8122eccff19a812964afbe4ed81176899e5b2f0d (diff) | |
| download | flashrom-117597c94ca5a46a33e2fdaf3b0866241ba7da88.tar.gz | |
Use the BAR value returned by pcidev_init which automatically applies
the correct BAR mask for the drkaiser driver.
Truncate flash chip addresses to fit into the 128 kB memory window for
drkaiser and pick the same window size for gfxnvidia.
Uwe tested all operations successfully on a Dr. Kaiser card.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: https://code.coreboot.org/svn/flashrom/trunk@1089 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'drkaiser.c')
| -rw-r--r-- | drkaiser.c | 14 |
1 files changed, 7 insertions, 7 deletions
@@ -26,6 +26,9 @@ #define PCI_MAGIC_DRKAISER_ADDR 0x50 #define PCI_MAGIC_DRKAISER_VALUE 0xa971 +/* Mask to restrict flash accesses to the 128kB memory window. */ +#define DRKAISER_MEMMAP_MASK ((1 << 17) - 1) + const struct pcidev_status drkaiser_pcidev[] = { {0x1803, 0x5057, OK, "Dr. Kaiser", "PC-Waechter (Actel FPGA)"}, {}, @@ -39,16 +42,13 @@ int drkaiser_init(void) get_io_perms(); - pcidev_init(PCI_VENDOR_ID_DRKAISER, PCI_BASE_ADDRESS_2, - drkaiser_pcidev); + addr = pcidev_init(PCI_VENDOR_ID_DRKAISER, PCI_BASE_ADDRESS_2, + drkaiser_pcidev); /* Write magic register to enable flash write. */ pci_write_word(pcidev_dev, PCI_MAGIC_DRKAISER_ADDR, PCI_MAGIC_DRKAISER_VALUE); - /* TODO: Mask lower bits? How many? 3? 7? */ - addr = pci_read_long(pcidev_dev, PCI_BASE_ADDRESS_2) & ~0x03; - /* Map 128KB flash memory window. */ drkaiser_bar = physmap("Dr. Kaiser PC-Waechter flash memory", addr, 128 * 1024); @@ -69,10 +69,10 @@ int drkaiser_shutdown(void) void drkaiser_chip_writeb(uint8_t val, chipaddr addr) { - mmio_writeb(val, drkaiser_bar + addr); + mmio_writeb(val, drkaiser_bar + (addr & DRKAISER_MEMMAP_MASK)); } uint8_t drkaiser_chip_readb(const chipaddr addr) { - return mmio_readb(drkaiser_bar + addr); + return mmio_readb(drkaiser_bar + (addr & DRKAISER_MEMMAP_MASK)); } |