diff options
| author | Arne Georg Gleditsch <arne.gleditsch@numascale.com> | 2010-09-09 14:54:07 +0000 |
|---|---|---|
| committer | Myles Watson <mylesgw@gmail.com> | 2010-09-09 14:54:07 +0000 |
| commit | d6689ed7813b37c92bbe6058155d67c4757fef26 (patch) | |
| tree | 2067aa432c89740cb808662de827a6d32970d1c3 /src/cpu | |
| parent | e0a000cc12984700c87fea6b153fa4221a125e19 (diff) | |
Please find appended. This patch gets rid of the %gs magic altogether,
fixes a few alignment wrinkles and sets up and registers the MMCONF area
for AMD Fam10h CPUs (where selected by mainboard configuration). It
removes a bit of code that proved troublesome in MMCONF setups from
mcp55_early_setup_car.c, as per earlier discussion.
Signed-off-by: Arne Georg Gleditsch <arne.gleditsch@numascale.com>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5796 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/amd/model_10xxx/init_cpus.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/src/cpu/amd/model_10xxx/init_cpus.c b/src/cpu/amd/model_10xxx/init_cpus.c index b5947c9d33..bbaa4819b2 100644 --- a/src/cpu/amd/model_10xxx/init_cpus.c +++ b/src/cpu/amd/model_10xxx/init_cpus.c @@ -57,32 +57,28 @@ static void set_EnableCf8ExtCfg(void) static void set_EnableCf8ExtCfg(void) { } #endif -/*[39:8] */ -#define PCI_MMIO_BASE 0xfe000000 -/* because we will use gs to store hi, so need to make sure lo can start - from 0, So PCI_MMIO_BASE & 0x00ffffff should be equal to 0*/ + +#define _ULLx(x) x ## ULL +#define _ULL(x) _ULLx(x) + +/*[63:0] */ +#define PCI_MMIO_BASE _ULL(CONFIG_MMCONF_BASE_ADDRESS) static void set_pci_mmio_conf_reg(void) { #if CONFIG_MMCONF_SUPPORT +# if PCI_MMIO_BASE > 0xffffffff +# error CONFIG_MMCONF_BASE_ADDRESS must currently fit in 32 bits! +# endif msr_t msr; msr = rdmsr(0xc0010058); msr.lo &= ~(0xfff00000 | (0xf << 2)); - // 256 bus per segment, MMIO reg will be 4G , enable MMIO Config space - msr.lo |= ((8 + CONFIG_PCI_BUS_SEGN_BITS) << 2) | (1 << 0); + // 256 buses, one segment. Total 256M address space. + msr.lo |= (PCI_MMIO_BASE & 0xfff00000) | (8 << 2) | (1 << 0); msr.hi &= ~(0x0000ffff); - msr.hi |= (PCI_MMIO_BASE >> (32 - 8)); - wrmsr(0xc0010058, msr); // MMIO Config Base Address Reg - - //mtrr for that range? - // set_var_mtrr_x(7, PCI_MMIO_BASE<<8, PCI_MMIO_BASE>>(32-8), 0x00000000, 0x01, MTRR_TYPE_UNCACHEABLE); - - set_wrap32dis(); - - msr.hi = (PCI_MMIO_BASE >> (32 - 8)); - msr.lo = 0; - wrmsr(0xc0000101, msr); //GS_Base Reg + msr.hi |= (PCI_MMIO_BASE >> (32)); + wrmsr(0xc0010058, msr); // MMIO Config Base Address Reg #endif } |