Author: mjones Date: 2008-10-15 19:50:29 +0200 (Wed, 15 Oct 2008) New Revision: 3659
Modified: trunk/util/flashrom/chipset_enable.c Log: SB600 has four write once LPC ROM protect areas. It is not possible to write enable that area once the register is set so print a warning.
Signed-off-by: Marc Jones marcj.jones@amd.com Acked-by: Ronald G. Minnich rminnich@gmail.com Acked-by: Peter Stuge peter@stuge.se Acked-by: Carl-Daniel Hailfinger c-d.hailfinger.devel.2006@gmx.net
Modified: trunk/util/flashrom/chipset_enable.c =================================================================== --- trunk/util/flashrom/chipset_enable.c 2008-10-14 16:34:38 UTC (rev 3658) +++ trunk/util/flashrom/chipset_enable.c 2008-10-15 17:50:29 UTC (rev 3659) @@ -571,6 +571,26 @@ return 0; }
+static int enable_flash_sb600(struct pci_dev *dev, const char *name) +{ + uint32_t old, new; + uint8_t reg; + + /* Clear ROM Protect 0-3 */ + for (reg = 0x50; reg < 0x60; reg+=4) { + old = pci_read_long(dev, reg); + new = old & 0xFFFFFFFC; + if (new != old) { + pci_write_byte(dev, reg, new); + if (pci_read_long(dev, reg) != new) { + printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x50, new, name); + } + } + } + + return 0; +} + static int enable_flash_ck804(struct pci_dev *dev, const char *name) { uint8_t old, new; @@ -744,6 +764,7 @@ {0x1039, 0x0008, "SiS5595", enable_flash_sis5595}, {0x1022, 0x2080, "AMD CS5536", enable_flash_cs5536}, {0x1022, 0x7468, "AMD8111", enable_flash_amd8111}, + {0x1002, 0x438D, "ATI(AMD) SB600", enable_flash_sb600}, {0x10B9, 0x1533, "ALi M1533", enable_flash_ali_m1533}, {0x10de, 0x0050, "NVIDIA CK804", enable_flash_ck804}, /* LPC */ {0x10de, 0x0051, "NVIDIA CK804", enable_flash_ck804}, /* Pro */