diff mbox series

[11/12] pci: ls_pcie_g4: Add size check for config resource

Message ID	1594659555-12669-12-git-send-email-wasim.khan@nxp.com
State	Accepted
Commit	1255f8bc36101400fd16fc4898f9dd9fdccbbc2e
Headers	show List-Id: U-Boot discussion <u-boot.lists.denx.de> From: wasim.khan at nxp.com (Wasim Khan) Date: Mon, 13 Jul 2020 22:29:14 +0530 Subject: [PATCH 11/12] pci: ls_pcie_g4: Add size check for config resource In-Reply-To: <1594659555-12669-1-git-send-email-wasim.khan@nxp.com> References: <1594659555-12669-1-git-send-email-wasim.khan@nxp.com> Message-ID: <1594659555-12669-12-git-send-email-wasim.khan@nxp.com>
Series	Add label to pcie nodes \| expand [00/12] Add label to pcie nodes [01/12] pci: layerscape: Print pcie controller number starting from 1 [02/12] pci: ls_pcie_g4: Print pcie controller number starting from 1 [03/12] arm: dts: lx2160a: add label to pcie nodes in dts [04/12] arm: dts: ls1046a: add label to pcie nodes in dts [05/12] arm: dts: ls2080a: add label to pcie nodes in dts [06/12] arm: dts: ls1088a: add label to pcie nodes in dts [07/12] arm: dts: ls1012a: add label to pcie nodes in dts [08/12] arm: dts: ls1043a: add label to pcie nodes in dts [09/12] arm: dts: ls1028a: add label to pcie nodes in dts [10/12] pci: layerscape: Add size check for config resource [11/12] pci: ls_pcie_g4: Add size check for config resource [12/12] pci: layerscape: indentation correction

Commit Message

Wasim Khan July 13, 2020, 4:59 p.m. UTC

resource "config" is required to have minimum 1KB space.

Signed-off-by: Wasim Khan <wasim.khan at nxp.com>
---
 drivers/pci/pcie_layerscape_gen4.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff mbox series

Patch

diff --git a/drivers/pci/pcie_layerscape_gen4.c b/drivers/pci/pcie_layerscape_gen4.c
index 0226bde..f9e3e04 100644
--- a/drivers/pci/pcie_layerscape_gen4.c
+++ b/drivers/pci/pcie_layerscape_gen4.c
@@ -455,6 +455,7 @@  static int ls_pcie_g4_probe(struct udevice *dev)
 	u32 link_ctrl_sta;
 	u32 val;
 	int ret;
+	fdt_size_t cfg_size;
 
 	pcie->bus = dev;
 
@@ -488,6 +489,14 @@  static int ls_pcie_g4_probe(struct udevice *dev)
 		return ret;
 	}
 
+	cfg_size = fdt_resource_size(&pcie->cfg_res);
+	if (cfg_size < SZ_1K) {
+		printf("PCIe%d: %s Invalid size(0x%x) for resource \"config\",
+		       expected minimum 0x%x \n", PCIE_SRDS_PRTCL(pcie->idx),
+		       dev->name, cfg_size, SZ_1K);
+		return 0;
+	}
+
 	pcie->cfg = map_physmem(pcie->cfg_res.start,
 				fdt_resource_size(&pcie->cfg_res),
 				MAP_NOCACHE);