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dm: pci: Check board information pointer in decode_regions()

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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 <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2018-03-27 00:46:05 -07:00
parent 14d61d4e57
commit 1eaf7800b6
1 changed files with 3 additions and 0 deletions
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3
drivers/pci/pci-uclass.c
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@ -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++,