resource "config" is required to have minimum 8KB space as per hardware documentation.
Signed-off-by: Wasim Khan wasim.khan@nxp.com --- Changes in V2: - Updated commit description - Fix CheckPatch issue
drivers/pci/pcie_layerscape_rc.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/pcie_layerscape_rc.c b/drivers/pci/pcie_layerscape_rc.c index f9e3089..7e232be 100644 --- a/drivers/pci/pcie_layerscape_rc.c +++ b/drivers/pci/pcie_layerscape_rc.c @@ -314,6 +314,13 @@ static int ls_pcie_probe(struct udevice *dev) return ret; }
+ cfg_size = fdt_resource_size(&pcie_rc->cfg_res); + if (cfg_size < SZ_8K) { + printf("PCIe%d: %s Invalid size(0x%llx) for resource "config",expected minimum 0x%x\n", + PCIE_SRDS_PRTCL(pcie->idx), dev->name, cfg_size, SZ_8K); + return 0; + } + /* * Fix the pcie memory map address and PF control registers address * for LS2088A series SoCs @@ -323,7 +330,6 @@ static int ls_pcie_probe(struct udevice *dev) if (svr == SVR_LS2088A || svr == SVR_LS2084A || svr == SVR_LS2048A || svr == SVR_LS2044A || svr == SVR_LS2081A || svr == SVR_LS2041A) { - cfg_size = fdt_resource_size(&pcie_rc->cfg_res); pcie_rc->cfg_res.start = LS2088A_PCIE1_PHYS_ADDR + LS2088A_PCIE_PHYS_SIZE * pcie->idx; pcie_rc->cfg_res.end = pcie_rc->cfg_res.start + cfg_size;