openwrt/target/linux/kirkwood/patches-3.10/0010-arm-kirkwood-move-PCIe-window-init-to-legacy-driver.patch

From 722ffe56a78344821877496f5bb28ca95b4cb67c Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 15 May 2013 15:36:55 +0200
Subject: [PATCH 10/29] arm: kirkwood: move PCIe window init to legacy driver

Since we are going to enable the usage of the mvebu PCIe driver on
Kirkwood, we don't want the PCIe windows to be unconditionally created
by kirkwood_setup_wins(). Therefore, we move the PCIe window
initialization into the legacy PCIe driver
(arch/arm/mach-kirkwood/pcie.c).

The platforms using the legacy driver will see their windows
statically allocated by
arch/arm/mach-kirkwood/pcie.c:kirkwood_pcie_init(). The platforms
using the new driver in drivers/pci/ will see their windows
dynamically allocated directly by the driver.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-kirkwood/common.c | 24 ------------------------
 arch/arm/mach-kirkwood/pcie.c   | 22 ++++++++++++++++++++++
 2 files changed, 22 insertions(+), 24 deletions(-)

--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -648,30 +648,6 @@ char * __init kirkwood_id(void)
 
 void __init kirkwood_setup_wins(void)
 {
-	/*
-	 * The PCIe windows will no longer be statically allocated
-	 * here once Kirkwood is migrated to the pci-mvebu driver.
-	 */
-	mvebu_mbus_add_window_remap_flags("pcie0.0",
-					  KIRKWOOD_PCIE_IO_PHYS_BASE,
-					  KIRKWOOD_PCIE_IO_SIZE,
-					  KIRKWOOD_PCIE_IO_BUS_BASE,
-					  MVEBU_MBUS_PCI_IO);
-	mvebu_mbus_add_window_remap_flags("pcie0.0",
-					  KIRKWOOD_PCIE_MEM_PHYS_BASE,
-					  KIRKWOOD_PCIE_MEM_SIZE,
-					  MVEBU_MBUS_NO_REMAP,
-					  MVEBU_MBUS_PCI_MEM);
-	mvebu_mbus_add_window_remap_flags("pcie1.0",
-					  KIRKWOOD_PCIE1_IO_PHYS_BASE,
-					  KIRKWOOD_PCIE1_IO_SIZE,
-					  KIRKWOOD_PCIE1_IO_BUS_BASE,
-					  MVEBU_MBUS_PCI_IO);
-	mvebu_mbus_add_window_remap_flags("pcie1.0",
-					  KIRKWOOD_PCIE1_MEM_PHYS_BASE,
-					  KIRKWOOD_PCIE1_MEM_SIZE,
-					  MVEBU_MBUS_NO_REMAP,
-					  MVEBU_MBUS_PCI_MEM);
 	mvebu_mbus_add_window("nand", KIRKWOOD_NAND_MEM_PHYS_BASE,
 			      KIRKWOOD_NAND_MEM_SIZE);
 	mvebu_mbus_add_window("sram", KIRKWOOD_SRAM_PHYS_BASE,
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -12,6 +12,7 @@
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/clk.h>
+#include <linux/mbus.h>
 #include <video/vga.h>
 #include <asm/irq.h>
 #include <asm/mach/pci.h>
@@ -253,6 +254,27 @@ static void __init add_pcie_port(int ind
 
 void __init kirkwood_pcie_init(unsigned int portmask)
 {
+	mvebu_mbus_add_window_remap_flags("pcie0.0",
+					  KIRKWOOD_PCIE_IO_PHYS_BASE,
+					  KIRKWOOD_PCIE_IO_SIZE,
+					  KIRKWOOD_PCIE_IO_BUS_BASE,
+					  MVEBU_MBUS_PCI_IO);
+	mvebu_mbus_add_window_remap_flags("pcie0.0",
+					  KIRKWOOD_PCIE_MEM_PHYS_BASE,
+					  KIRKWOOD_PCIE_MEM_SIZE,
+					  MVEBU_MBUS_NO_REMAP,
+					  MVEBU_MBUS_PCI_MEM);
+	mvebu_mbus_add_window_remap_flags("pcie1.0",
+					  KIRKWOOD_PCIE1_IO_PHYS_BASE,
+					  KIRKWOOD_PCIE1_IO_SIZE,
+					  KIRKWOOD_PCIE1_IO_BUS_BASE,
+					  MVEBU_MBUS_PCI_IO);
+	mvebu_mbus_add_window_remap_flags("pcie1.0",
+					  KIRKWOOD_PCIE1_MEM_PHYS_BASE,
+					  KIRKWOOD_PCIE1_MEM_SIZE,
+					  MVEBU_MBUS_NO_REMAP,
+					  MVEBU_MBUS_PCI_MEM);
+
 	vga_base = KIRKWOOD_PCIE_MEM_PHYS_BASE;
 
 	if (portmask & KW_PCIE0)