diff options
Diffstat (limited to 'src/northbridge/amd/amdk8')
| -rw-r--r-- | src/northbridge/amd/amdk8/early_ht.c | 8 | ||||
| -rw-r--r-- | src/northbridge/amd/amdk8/misc_control.c | 15 | ||||
| -rw-r--r-- | src/northbridge/amd/amdk8/raminit.c | 104 |
3 files changed, 41 insertions, 86 deletions
diff --git a/src/northbridge/amd/amdk8/early_ht.c b/src/northbridge/amd/amdk8/early_ht.c index be79545531..af9453492b 100644 --- a/src/northbridge/amd/amdk8/early_ht.c +++ b/src/northbridge/amd/amdk8/early_ht.c @@ -16,8 +16,9 @@ static int enumerate_ht_chain(void) id = pci_read_config32(PCI_DEV(0,0,0), PCI_VENDOR_ID); /* If the chain is enumerated quit */ if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) || - (((id >> 16) & 0xffff) == 0xffff) || - (((id >> 16) & 0xffff) == 0x0000)) { + (((id >> 16) & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0x0000)) + { break; } hdr_type = pci_read_config8(PCI_DEV(0,0,0), PCI_HEADER_TYPE); @@ -25,7 +26,8 @@ static int enumerate_ht_chain(void) hdr_type &= 0x7f; if ((hdr_type == PCI_HEADER_TYPE_NORMAL) || - (hdr_type == PCI_HEADER_TYPE_BRIDGE)) { + (hdr_type == PCI_HEADER_TYPE_BRIDGE)) + { pos = pci_read_config8(PCI_DEV(0,0,0), PCI_CAPABILITY_LIST); } while(pos != 0) { diff --git a/src/northbridge/amd/amdk8/misc_control.c b/src/northbridge/amd/amdk8/misc_control.c index 4938c453d7..e5e8f4c78f 100644 --- a/src/northbridge/amd/amdk8/misc_control.c +++ b/src/northbridge/amd/amdk8/misc_control.c @@ -42,7 +42,7 @@ static void mcf3_read_resources(device_t dev) pci_dev_read_resources(dev); /* If we are not the first processor don't allocate the gart apeture */ - if (dev->path.u.pci.devfn != PCI_DEVFN(0x18, 0x3)) { + if (dev->path.u.pci.devfn != PCI_DEVFN(0x18, 3)) { return; } @@ -68,19 +68,20 @@ static void set_agp_aperture(device_t dev) if (resource) { device_t pdev; uint32_t gart_base, gart_acr; + /* Remember this resource has been stored */ resource->flags |= IORESOURCE_STORED; - /*Find the size of the GART aperture */ - gart_acr = (0<<6)|(0<<5)|(0<<4)| ((log2(resource->size) - 25) << 1)|(0<<0); + /* Find the size of the GART aperture */ + gart_acr = (0<<6)|(0<<5)|(0<<4)|((resource->gran - 25) << 1)|(0<<0); /* Get the base address */ gart_base = ((resource->base) >> 25) & 0x00007fff; /* Update the other northbriges */ pdev = 0; - while (pdev = dev_find_device(PCI_VENDOR_ID_AMD, 0x1103, pdev)) { - /* Store GART size but don't enable it */ + while((pdev = dev_find_device(PCI_VENDOR_ID_AMD, 0x1103, pdev))) { + /* Store the GART size but don't enable it */ pci_write_config32(pdev, 0x90, gart_acr); /* Store the GART base address */ @@ -175,8 +176,6 @@ static void misc_control_init(struct device *dev) needs_reset = 1; /* Needed? */ } } -#if CONFIG_MAX_CPUS > 1 -/* Single CPU systems don't seem to need this. It might cause resets? (YhLu) */ /* Optimize the Link read pointers */ f0_dev = dev_find_slot(0, dev->path.u.pci.devfn - 3); if (f0_dev) { @@ -202,7 +201,6 @@ static void misc_control_init(struct device *dev) else { printk_err("Missing f0 device!\n"); } -#endif if (needs_reset) { printk_debug("resetting cpu\n"); hard_reset(); @@ -217,6 +215,7 @@ static struct device_operations mcf3_ops = { .enable_resources = pci_dev_enable_resources, .init = misc_control_init, .scan_bus = 0, + .ops_pci = 0, }; static struct pci_driver mcf3_driver __pci_driver = { diff --git a/src/northbridge/amd/amdk8/raminit.c b/src/northbridge/amd/amdk8/raminit.c index 67ae757a32..e4043493ab 100644 --- a/src/northbridge/amd/amdk8/raminit.c +++ b/src/northbridge/amd/amdk8/raminit.c @@ -1,20 +1,20 @@ -#include <cpu/k8/mtrr.h> +#include <cpu/x86/mem.h> +#include <cpu/x86/cache.h> +#include <cpu/x86/mtrr.h> #include "raminit.h" #include "amdk8.h" #if (CONFIG_LB_MEM_TOPK & (CONFIG_LB_MEM_TOPK -1)) != 0 # error "CONFIG_LB_MEM_TOPK must be a power of 2" #endif - static void setup_resource_map(const unsigned int *register_values, int max) { int i; print_debug("setting up resource map...."); - #if 0 print_debug("\r\n"); #endif - for (i = 0; i < max; i += 3) { + for(i = 0; i < max; i += 3) { device_t dev; unsigned where; unsigned long reg; @@ -1921,11 +1921,21 @@ static long spd_set_dram_timing(const struct mem_controller *ctrl, const struct return dimm_mask; } +static int controller_present(const struct mem_controller *ctrl) +{ + return pci_read_config32(ctrl->f0, 0) == 0x11001022; +} static void sdram_set_spd_registers(const struct mem_controller *ctrl) { struct spd_set_memclk_result result; const struct mem_param *param; long dimm_mask; +#if 1 + if (!controller_present(ctrl)) { + print_debug("No memory controller present\r\n"); + return; + } +#endif hw_enable_ecc(ctrl); activate_spd_rom(ctrl); dimm_mask = spd_detect_dimms(ctrl); @@ -1972,6 +1982,8 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl) /* Before enabling memory start the memory clocks */ for(i = 0; i < controllers; i++) { uint32_t dch; + if (!controller_present(ctrl + i)) + continue; dch = pci_read_config32(ctrl[i].f2, DRAM_CONFIG_HIGH); if (dch & (DCH_MEMCLK_EN0|DCH_MEMCLK_EN1|DCH_MEMCLK_EN2|DCH_MEMCLK_EN3)) { dch |= DCH_MEMCLK_VALID; @@ -1991,6 +2003,8 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl) for(i = 0; i < controllers; i++) { uint32_t dcl, dch; + if (!controller_present(ctrl + i)) + continue; /* Skip everything if I don't have any memory on this controller */ dch = pci_read_config32(ctrl[i].f2, DRAM_CONFIG_HIGH); if (!(dch & DCH_MEMCLK_VALID)) { @@ -2021,6 +2035,8 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl) } for(i = 0; i < controllers; i++) { uint32_t dcl, dch; + if (!controller_present(ctrl + i)) + continue; /* Skip everything if I don't have any memory on this controller */ dch = pci_read_config32(ctrl[i].f2, DRAM_CONFIG_HIGH); if (!(dch & DCH_MEMCLK_VALID)) { @@ -2058,78 +2074,16 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl) /* Save the value of msr_201 */ msr_201 = rdmsr(0x201); - print_debug("Clearing LinuxBIOS memory: "); - - /* disable cache */ - __asm__ volatile( - "movl %%cr0, %0\n\t" - "orl $0x40000000, %0\n\t" - "movl %0, %%cr0\n\t" - :"=r" (cnt) - ); - - /* Disable fixed mtrrs */ - msr = rdmsr(MTRRdefType_MSR); - msr.lo &= ~(1<<10); - wrmsr(MTRRdefType_MSR, msr); - - - /* Set the variable mtrrs to write combine */ - msr.hi = 0; - msr.lo = 0 | MTRR_TYPE_WRCOMB; - wrmsr(0x200, msr); - - /* Set the limit to 1M of ram */ - msr.hi = 0x000000ff; - msr.lo = (~((CONFIG_LB_MEM_TOPK << 10) - 1)) | 0x800; - wrmsr(0x201, msr); - - /* enable cache */ - __asm__ volatile( - "movl %%cr0, %0\n\t" - "andl $0x9fffffff, %0\n\t" - "movl %0, %%cr0\n\t" - :"=r" (cnt) - ); - + print_debug("Clearing initial memory region: "); + + /* Use write combine caching while we setup the first 1M */ + cache_lbmem(MTRR_TYPE_WRCOMB); + /* clear memory 1meg */ - __asm__ volatile( - "1: \n\t" - "movl %0, %%fs:(%1)\n\t" - "addl $4,%1\n\t" - "subl $4,%2\n\t" - "jnz 1b\n\t" - : - : "a" (0), "D" (0), "c" (1024*1024) - ); - - /* disable cache */ - __asm__ volatile( - "movl %%cr0, %0\n\t" - "orl $0x40000000, %0\n\t" - "movl %0, %%cr0\n\t" - :"=r" (cnt) - ); - - /* restore msr registers */ - msr = rdmsr(MTRRdefType_MSR); - msr.lo |= 0x0400; - wrmsr(MTRRdefType_MSR, msr); - - - /* Restore the variable mtrrs */ - msr.hi = 0; - msr.lo = MTRR_TYPE_WRBACK; - wrmsr(0x200, msr); - wrmsr(0x201, msr_201); - - /* enable cache */ - __asm__ volatile( - "movl %%cr0, %0\n\t" - "andl $0x9fffffff, %0\n\t" - "movl %0, %%cr0\n\t" - :"=r" (cnt) - ); + clear_memory((void *)0, CONFIG_LB_MEM_TOPK << 10); + + /* The first 1M is now setup, use it */ + cache_lbmem(MTRR_TYPE_WRBACK); print_debug(" done\r\n"); } |