On Sat, Jul 4, 2015 at 8:28 AM, Simon Glass sjg@chromium.org wrote:
Commit afbbd413a fixed this for non-driver-model. Make sure that the driver model code handles this also.
Signed-off-by: Simon Glass sjg@chromium.org
Changes in v3:
- Drop the patch to board_f.c as it is not needed, and interferes with the fix
- Add a comment about why gd->pci_ram_top is being set
Changes in v2:
- Only limit the PCI system memory region on x86 machines
arch/x86/cpu/cpu.c | 2 ++ drivers/pci/pci-uclass.c | 8 ++++++-- include/asm-generic/global_data.h | 1 + 3 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index d108ee5..2b6ed11 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -351,6 +351,8 @@ int x86_cpu_init_f(void)
gd->arch.has_mtrr = has_mtrr(); }
/* Don't allow PCI region 3 to use memory in the 2-4GB memory hole */gd->pci_ram_top = 0x80000000U; return 0;} diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index edec93f..5b91fe3 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -444,6 +444,7 @@ static int decode_regions(struct pci_controller *hose, const void *blob, { int pci_addr_cells, addr_cells, size_cells; int cells_per_record;
phys_addr_t addr; const u32 *prop; int len; int i;@@ -494,8 +495,11 @@ static int decode_regions(struct pci_controller *hose, const void *blob, }
/* Add a region for our local memory */
pci_set_region(hose->regions + hose->region_count++, 0, 0,gd->ram_size, PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
addr = gd->ram_size;if (gd->pci_ram_top && gd->pci_ram_top < addr)addr = gd->pci_ram_top;pci_set_region(hose->regions + hose->region_count++, 0, 0, addr,PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); return 0;} diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index 6747619..db0550b 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -93,6 +93,7 @@ typedef struct global_data { #endif #ifdef CONFIG_PCI struct pci_controller *hose; /* PCI hose for early use */
phys_addr_t pci_ram_top; /* top of region accessible to PCI */#endif #ifdef CONFIG_PCI_BOOTDELAY int pcidelay_done; --
Reviewed-by: Bin Meng bmeng.cn@gmail.com