From 2301a3e1a5664cf8380d2b8ef051005dc90bc881 Mon Sep 17 00:00:00 2001 From: Pali Rohár Date: Sat, 24 Sep 2022 11:24:04 +0200 Subject: PCI: mt7621: Use PCI_CONF1_EXT_ADDRESS() macro MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Simplify pcie-mt7621.c driver code and use new PCI_CONF1_EXT_ADDRESS() macro for accessing PCIe config space. Link: https://lore.kernel.org/r/20220924092404.31776-4-pali@kernel.org Signed-off-by: Pali Rohár Signed-off-by: Lorenzo Pieralisi Acked-by: Sergio Paracuellos --- drivers/pci/controller/pcie-mt7621.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/controller/pcie-mt7621.c b/drivers/pci/controller/pcie-mt7621.c index 33eb37a2225c..4bd1abf26008 100644 --- a/drivers/pci/controller/pcie-mt7621.c +++ b/drivers/pci/controller/pcie-mt7621.c @@ -30,6 +30,8 @@ #include #include +#include "../pci.h" + /* MediaTek-specific configuration registers */ #define PCIE_FTS_NUM 0x70c #define PCIE_FTS_NUM_MASK GENMASK(15, 8) @@ -120,19 +122,12 @@ static inline void pcie_port_write(struct mt7621_pcie_port *port, writel_relaxed(val, port->base + reg); } -static inline u32 mt7621_pcie_get_cfgaddr(unsigned int bus, unsigned int slot, - unsigned int func, unsigned int where) -{ - return (((where & 0xf00) >> 8) << 24) | (bus << 16) | (slot << 11) | - (func << 8) | (where & 0xfc) | 0x80000000; -} - static void __iomem *mt7621_pcie_map_bus(struct pci_bus *bus, unsigned int devfn, int where) { struct mt7621_pcie *pcie = bus->sysdata; - u32 address = mt7621_pcie_get_cfgaddr(bus->number, PCI_SLOT(devfn), - PCI_FUNC(devfn), where); + u32 address = PCI_CONF1_EXT_ADDRESS(bus->number, PCI_SLOT(devfn), + PCI_FUNC(devfn), where); writel_relaxed(address, pcie->base + RALINK_PCI_CONFIG_ADDR); @@ -147,7 +142,7 @@ static struct pci_ops mt7621_pcie_ops = { static u32 read_config(struct mt7621_pcie *pcie, unsigned int dev, u32 reg) { - u32 address = mt7621_pcie_get_cfgaddr(0, dev, 0, reg); + u32 address = PCI_CONF1_EXT_ADDRESS(0, dev, 0, reg); pcie_write(pcie, address, RALINK_PCI_CONFIG_ADDR); return pcie_read(pcie, RALINK_PCI_CONFIG_DATA); @@ -156,7 +151,7 @@ static u32 read_config(struct mt7621_pcie *pcie, unsigned int dev, u32 reg) static void write_config(struct mt7621_pcie *pcie, unsigned int dev, u32 reg, u32 val) { - u32 address = mt7621_pcie_get_cfgaddr(0, dev, 0, reg); + u32 address = PCI_CONF1_EXT_ADDRESS(0, dev, 0, reg); pcie_write(pcie, address, RALINK_PCI_CONFIG_ADDR); pcie_write(pcie, val, RALINK_PCI_CONFIG_DATA); -- cgit v1.2.3