openwrt/target/linux/starfive/patches-6.6/0017-PCI-microchip-Add-bridge_addr-field-to-struct-mc_pci.patch
Zoltan HERPAI e2e2fc3cd0 starfive: add patches for 6.6
Add updated patches for 6.6. DMA/cache-handling patches
have been reworked / backported from upstream.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
2024-09-03 00:03:19 +02:00

108 lines
4.0 KiB
Diff

From 6ee4d4568314425079ae88229bb9abbff9b92b8b Mon Sep 17 00:00:00 2001
From: Minda Chen <minda.chen@starfivetech.com>
Date: Mon, 8 Jan 2024 19:05:54 +0800
Subject: [PATCH 017/116] PCI: microchip: Add bridge_addr field to struct
mc_pcie
For bridge address base is common PLDA field, Add this to struct mc_pcie
first.
INTx and MSI codes interrupts codes will get the bridge base address from
port->bridge_addr. These codes will be changed to common codes.
axi_base_addr is Microchip its own data.
Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
---
.../pci/controller/plda/pcie-microchip-host.c | 23 ++++++++-----------
1 file changed, 9 insertions(+), 14 deletions(-)
--- a/drivers/pci/controller/plda/pcie-microchip-host.c
+++ b/drivers/pci/controller/plda/pcie-microchip-host.c
@@ -195,6 +195,7 @@ struct mc_pcie {
struct irq_domain *event_domain;
raw_spinlock_t lock;
struct mc_msi msi;
+ void __iomem *bridge_addr;
};
struct cause {
@@ -339,8 +340,7 @@ static void mc_handle_msi(struct irq_des
struct irq_chip *chip = irq_desc_get_chip(desc);
struct device *dev = port->dev;
struct mc_msi *msi = &port->msi;
- void __iomem *bridge_base_addr =
- port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
+ void __iomem *bridge_base_addr = port->bridge_addr;
unsigned long status;
u32 bit;
int ret;
@@ -365,8 +365,7 @@ static void mc_handle_msi(struct irq_des
static void mc_msi_bottom_irq_ack(struct irq_data *data)
{
struct mc_pcie *port = irq_data_get_irq_chip_data(data);
- void __iomem *bridge_base_addr =
- port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
+ void __iomem *bridge_base_addr = port->bridge_addr;
u32 bitpos = data->hwirq;
writel_relaxed(BIT(bitpos), bridge_base_addr + ISTATUS_MSI);
@@ -488,8 +487,7 @@ static void mc_handle_intx(struct irq_de
struct mc_pcie *port = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc);
struct device *dev = port->dev;
- void __iomem *bridge_base_addr =
- port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
+ void __iomem *bridge_base_addr = port->bridge_addr;
unsigned long status;
u32 bit;
int ret;
@@ -514,8 +512,7 @@ static void mc_handle_intx(struct irq_de
static void mc_ack_intx_irq(struct irq_data *data)
{
struct mc_pcie *port = irq_data_get_irq_chip_data(data);
- void __iomem *bridge_base_addr =
- port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
+ void __iomem *bridge_base_addr = port->bridge_addr;
u32 mask = BIT(data->hwirq + PM_MSI_INT_INTX_SHIFT);
writel_relaxed(mask, bridge_base_addr + ISTATUS_LOCAL);
@@ -524,8 +521,7 @@ static void mc_ack_intx_irq(struct irq_d
static void mc_mask_intx_irq(struct irq_data *data)
{
struct mc_pcie *port = irq_data_get_irq_chip_data(data);
- void __iomem *bridge_base_addr =
- port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
+ void __iomem *bridge_base_addr = port->bridge_addr;
unsigned long flags;
u32 mask = BIT(data->hwirq + PM_MSI_INT_INTX_SHIFT);
u32 val;
@@ -540,8 +536,7 @@ static void mc_mask_intx_irq(struct irq_
static void mc_unmask_intx_irq(struct irq_data *data)
{
struct mc_pcie *port = irq_data_get_irq_chip_data(data);
- void __iomem *bridge_base_addr =
- port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
+ void __iomem *bridge_base_addr = port->bridge_addr;
unsigned long flags;
u32 mask = BIT(data->hwirq + PM_MSI_INT_INTX_SHIFT);
u32 val;
@@ -896,8 +891,7 @@ static void mc_pcie_setup_window(void __
static int mc_pcie_setup_windows(struct platform_device *pdev,
struct mc_pcie *port)
{
- void __iomem *bridge_base_addr =
- port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
+ void __iomem *bridge_base_addr = port->bridge_addr;
struct pci_host_bridge *bridge = platform_get_drvdata(pdev);
struct resource_entry *entry;
u64 pci_addr;
@@ -1081,6 +1075,7 @@ static int mc_host_probe(struct platform
mc_disable_interrupts(port);
bridge_base_addr = port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
+ port->bridge_addr = bridge_base_addr;
/* Allow enabling MSI by disabling MSI-X */
val = readl(bridge_base_addr + PCIE_PCI_IRQ_DW0);