Author: rminnich Date: 2008-09-02 17:25:06 +0200 (Tue, 02 Sep 2008) New Revision: 855
Modified: coreboot-v3/arch/x86/amd/k8/stage1.c Log: With this change, we get all the way to stage 2 and this output, at which point we hang: Show all devs... root(Root Device): enabled 1 have_resources 0 initialized 0 cpus: Unknown device path type: 0 cpus(): enabled 1 have_resources 0 initialized 0 apic_0(APIC: 00): enabled 1 have_resources 0 initialized 0 pci_1_0(PCI: 00:01.0): enabled 1 have_resources 0 initialized 0 pci_0_0(PCI: 00:00.0): enabled 1 have_resources 0 initialized 0 pci_4_0(PCI: 00:04.0): enabled 1 have_resources 0 initialized 0 pci_5_0(PCI: 00:05.0): enabled 1 have_resources 0 initialized 0 pci_18_0(PCI: 00:18.0): enabled 1 have_resources 0 initialized 0 ioport_2e(IOPORT: 2e): enabled 1 have_resources 0 initialized 0 domain_0(PCI_DOMAIN: 0000): enabled 1 have_resources 0 initialized 0 Phase 6: Initializing devices... Phase 6: Root Device init. Phase 6: PCI: 00:04.0 init.
The dts is quite incomplete and that is part of the problem. Doubtless there are other problems :-)
But training is indeed working in simnow, and memory is working, and we can return from disable_car as on the geode.
Signed-off-by: Ronald G. Minnich rminnich@gmail.com Acked-by: Ronald G. Minnich rminnich@gmail.com
Modified: coreboot-v3/arch/x86/amd/k8/stage1.c =================================================================== --- coreboot-v3/arch/x86/amd/k8/stage1.c 2008-09-01 02:44:08 UTC (rev 854) +++ coreboot-v3/arch/x86/amd/k8/stage1.c 2008-09-02 15:25:06 UTC (rev 855) @@ -38,8 +38,16 @@ * the data back over itself, and the wbinvd should then * flush to memory. Let's see. */ + /* nope. __asm__ __volatile__("cld; rep movsl" ::"D" (CONFIG_CARBASE), "S" (CONFIG_CARBASE), "c" (CONFIG_CARSIZE/4): "memory"); + */ + /* call the inlined function */ + disable_cache_as_ram(); + + /* copy it down, wbinvd, copy it back? */ + __asm__ __volatile__("cld; rep movsl" ::"D" (0x88000), "S" (CONFIG_CARBASE), "c" (CONFIG_CARSIZE/4): "memory"); __asm__ __volatile__ ("wbinvd\n"); + __asm__ __volatile__("cld; rep movsl" ::"D" (CONFIG_CARBASE), "S" (0x88000), "c" (CONFIG_CARSIZE/4): "memory"); banner(BIOS_DEBUG, "Disable_car: done wbinvd"); banner(BIOS_DEBUG, "disable_car: done"); }