linux-kernel - [PATCH 04/10] ARM: orion5x: Use generic PCI Conf Type 1 helper

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Date: Mon, 29 Apr 2024 13:46:27 +0300
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: linux-pci@...r.kernel.org,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Andrew Lunn <andrew@...n.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Gregory Clement <gregory.clement@...tlin.com>,
	Russell King <linux@...linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 04/10] ARM: orion5x: Use generic PCI Conf Type 1 helper

Convert orion5x PCI code to use pci_conf1_ext_addr() from PCI core to
calculate PCI Configuration Type 1 address.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 arch/arm/mach-orion5x/pci.c | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c
index 6376e1db6386..8b7d67549adf 100644
--- a/arch/arm/mach-orion5x/pci.c
+++ b/arch/arm/mach-orion5x/pci.c
@@ -216,15 +216,6 @@ static int __init pcie_setup(struct pci_sys_data *sys)
 #define PCI_P2P_DEV_OFFS		24
 #define PCI_P2P_DEV_MASK		(0x1f << PCI_P2P_DEV_OFFS)
 
-/*
- * PCI_CONF_ADDR bits
- */
-#define ORION5X_PCI_CONF_REG(reg)	((reg) & 0xfc)
-#define ORION5X_PCI_CONF_FUNC(func)	(((func) & 0x3) << 8)
-#define PCI_CONF_DEV(dev)		(((dev) & 0x1f) << 11)
-#define PCI_CONF_BUS(bus)		(((bus) & 0xff) << 16)
-#define PCI_CONF_ADDR_EN		(1 << 31)
-
 /*
  * Internal configuration space
  */
@@ -276,9 +267,7 @@ static int orion5x_pci_hw_rd_conf(int bus, u8 devfn, u32 where,
 	unsigned long flags;
 	spin_lock_irqsave(&orion5x_pci_lock, flags);
 
-	writel(PCI_CONF_BUS(bus) |
-		PCI_CONF_DEV(PCI_SLOT(devfn)) | ORION5X_PCI_CONF_REG(where) |
-		ORION5X_PCI_CONF_FUNC(PCI_FUNC(devfn)) | PCI_CONF_ADDR_EN, PCI_CONF_ADDR);
+	writel(pci_conf1_addr(bus, devfn, where, true), PCI_CONF_ADDR);
 
 	*val = readl(PCI_CONF_DATA);
 
@@ -300,9 +289,7 @@ static int orion5x_pci_hw_wr_conf(int bus, u8 devfn, u32 where,
 
 	spin_lock_irqsave(&orion5x_pci_lock, flags);
 
-	writel(PCI_CONF_BUS(bus) |
-		PCI_CONF_DEV(PCI_SLOT(devfn)) | ORION5X_PCI_CONF_REG(where) |
-		ORION5X_PCI_CONF_FUNC(PCI_FUNC(devfn)) | PCI_CONF_ADDR_EN, PCI_CONF_ADDR);
+	writel(pci_conf1_addr(bus, devfn, where, true), PCI_CONF_ADDR);
 
 	if (size == 4) {
 		__raw_writel(val, PCI_CONF_DATA);
-- 
2.39.2