diff mbox series

[v2,7/7] PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge

Message ID 20211028185659.20329-8-kabel@kernel.org
State New
Headers show
Series PCI: aardvark controller fixes BATCH 2 | expand

Commit Message

Marek Behún Oct. 28, 2021, 6:56 p.m. UTC 
From: Pali Rohár <pali@kernel.org>

This register is exported at address offset 0x30.

Fixes: 8a3ebd8de328 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org
---
 drivers/pci/controller/pci-aardvark.c | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index c3b725afa11f..c5300d49807a 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -32,6 +32,7 @@ 
 #define PCIE_CORE_DEV_ID_REG					0x0
 #define PCIE_CORE_CMD_STATUS_REG				0x4
 #define PCIE_CORE_DEV_REV_REG					0x8
+#define PCIE_CORE_EXP_ROM_BAR_REG				0x30
 #define PCIE_CORE_PCIEXP_CAP					0xc0
 #define PCIE_CORE_ERR_CAPCTL_REG				0x118
 #define     PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX			BIT(5)
@@ -773,6 +774,10 @@  advk_pci_bridge_emul_base_conf_read(struct pci_bridge_emul *bridge,
 		*value = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
 		return PCI_BRIDGE_EMUL_HANDLED;
 
+	case PCI_ROM_ADDRESS1:
+		*value = advk_readl(pcie, PCIE_CORE_EXP_ROM_BAR_REG);
+		return PCI_BRIDGE_EMUL_HANDLED;
+
 	case PCI_INTERRUPT_LINE: {
 		/*
 		 * From the whole 32bit register we support reading from HW only
@@ -805,6 +810,10 @@  advk_pci_bridge_emul_base_conf_write(struct pci_bridge_emul *bridge,
 		advk_writel(pcie, new, PCIE_CORE_CMD_STATUS_REG);
 		break;
 
+	case PCI_ROM_ADDRESS1:
+		advk_writel(pcie, new, PCIE_CORE_EXP_ROM_BAR_REG);
+		break;
+
 	case PCI_INTERRUPT_LINE:
 		if (mask & (PCI_BRIDGE_CTL_BUS_RESET << 16)) {
 			u32 val = advk_readl(pcie, PCIE_CORE_CTRL1_REG);