From 1eaf7800b6b99b48e73eab56202cf1c7a0e19ac9 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Tue, 27 Mar 2018 00:46:05 -0700 Subject: [PATCH] dm: pci: Check board information pointer in decode_regions() PCI enumeration may happen very early on an x86 board. The board information pointer should have been checked in decode_regions() as its space may not be allocated yet. With this commit, Intel Galileo board boots again. Fixes: 664758c ("pci: Fix decode regions for memory banks") Signed-off-by: Bin Meng Reviewed-by: Simon Glass --- drivers/pci/pci-uclass.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index ad43e8a..9d51236 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -876,6 +876,9 @@ static int decode_regions(struct pci_controller *hose, ofnode parent_node, #ifdef CONFIG_NR_DRAM_BANKS bd_t *bd = gd->bd; + if (!bd) + return 0; + for (i = 0; i < CONFIG_NR_DRAM_BANKS; ++i) { if (bd->bi_dram[i].size) { pci_set_region(hose->regions + hose->region_count++,