diff options
| author | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2015-10-25 18:58:24 -0500 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2015-12-01 16:59:41 +0100 |
| commit | 1a38374535df694a1a63d1f198d9828249019390 (patch) | |
| tree | 8a7448f4d668b9c6105e1d1e4cfd2aee2cbde33d /src | |
| parent | 273384638b4f4fbe8e500025d8941bd2e54b5f8a (diff) | |
| download | coreboot-1a38374535df694a1a63d1f198d9828249019390.tar.xz | |
southbridge/amd/sb700: Fix boot hang when AHCI mode disabled
Existence of requested PCI device was not checked when enabling
IDE mode on the SP5100. Fix incorrect PCI device ID and check
for device existence before attempting setup.
Change-Id: I726c355571b5c67c9a13995be2352601c03ab1e4
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/12572
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/southbridge/amd/sb700/early_setup.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/src/southbridge/amd/sb700/early_setup.c b/src/southbridge/amd/sb700/early_setup.c index f7e91207f5..06c6c77365 100644 --- a/src/southbridge/amd/sb700/early_setup.c +++ b/src/southbridge/amd/sb700/early_setup.c @@ -520,26 +520,28 @@ static void sb700_devices_por_init(void) if (!sata_ahci_mode){ #if CONFIG_SOUTHBRIDGE_AMD_SUBTYPE_SP5100 /* SP5100 default SATA mode is RAID5 MODE */ - dev = pci_locate_device(PCI_ID(0x1002, 0x4393), 0); + dev = pci_locate_device(PCI_ID(0x1002, 0x4392), 0); - /* Set SATA Operation Mode, Set to IDE mode */ - byte = pci_read_config8(dev, 0x40); - byte |= (1 << 0); - pci_write_config8(dev, 0x40, byte); + if (dev != PCI_DEV_INVALID) { + /* Set SATA Operation Mode, Set to IDE mode */ + byte = pci_read_config8(dev, 0x40); + byte |= (1 << 0); + pci_write_config8(dev, 0x40, byte); - dword = 0x01018f00; - pci_write_config32(dev, 0x8, dword); + dword = 0x01018f00; + pci_write_config32(dev, 0x8, dword); - /* set SATA Device ID writable */ - dword = pci_read_config32(dev, 0x40); - dword &= ~(1 << 24); - pci_write_config32(dev, 0x40, dword); + /* set SATA Device ID writable */ + dword = pci_read_config32(dev, 0x40); + dword &= ~(1 << 24); + pci_write_config32(dev, 0x40, dword); - /* set Device ID consistent with IDE emulation mode configuration */ - pci_write_config32(dev, 0x0, 0x43901002); + /* set Device ID consistent with IDE emulation mode configuration */ + pci_write_config32(dev, 0x0, 0x43901002); - /* rpr v2.13 4.17 Reset CPU on Sync Flood */ - abcfg_reg(0x10050, 1 << 2, 1 << 2); + /* rpr v2.13 4.17 Reset CPU on Sync Flood */ + abcfg_reg(0x10050, 1 << 2, 1 << 2); + } #endif } |