openwrt-archive/target/linux/brcm63xx/patches-4.4/336-MIPS-BCM63XX-dynamically-set-the-pcie-memory-windows.patch

From aa05464973bc176478af462ca7c53a9239c651d4 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Sun, 8 Dec 2013 03:13:06 +0100
Subject: [PATCH 46/53] MIPS: BCM63XX: dynamically set the pcie memory windows

Different SoCs use different memory windows (and sizes), so don't
hardcode it.
---
 arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h |  8 ++++----
 arch/mips/pci/pci-bcm63xx.c                     | 15 ++++++++++-----
 2 files changed, 14 insertions(+), 9 deletions(-)

--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h
@@ -40,10 +40,10 @@
 #define BCM_CB_MEM_END_PA		(BCM_CB_MEM_BASE_PA +		\
 					BCM_CB_MEM_SIZE - 1)
 
-#define BCM_PCIE_MEM_BASE_PA		0x10f00000
-#define BCM_PCIE_MEM_SIZE		(1 * 1024 * 1024)
-#define BCM_PCIE_MEM_END_PA		(BCM_PCIE_MEM_BASE_PA +		\
-					BCM_PCIE_MEM_SIZE - 1)
+#define BCM_PCIE_MEM_BASE_PA_6328	0x10f00000
+#define BCM_PCIE_MEM_SIZE_6328		(1 * 1024 * 1024)
+#define BCM_PCIE_MEM_END_PA_6328	(BCM_PCIE_MEM_BASE_PA_6328 +	\
+					BCM_PCIE_MEM_SIZE_6328 - 1)
 
 /*
  * Internal registers are accessed through KSEG3
--- a/arch/mips/pci/pci-bcm63xx.c
+++ b/arch/mips/pci/pci-bcm63xx.c
@@ -77,8 +77,8 @@ struct pci_controller bcm63xx_cb_control
 
 static struct resource bcm_pcie_mem_resource = {
 	.name	= "bcm63xx PCIe memory space",
-	.start	= BCM_PCIE_MEM_BASE_PA,
-	.end	= BCM_PCIE_MEM_END_PA,
+	.start	= 0,
+	.end	= 0,
 	.flags	= IORESOURCE_MEM,
 };
 
@@ -195,12 +195,12 @@ static int __init bcm63xx_register_pcie(
 	bcm_pcie_writel(val, PCIE_CONFIG2_REG);
 
 	/* set bar0 to little endian */
-	val = (BCM_PCIE_MEM_BASE_PA >> 20) << BASEMASK_BASE_SHIFT;
-	val |= (BCM_PCIE_MEM_BASE_PA >> 20) << BASEMASK_MASK_SHIFT;
+	val = (bcm_pcie_mem_resource.start >> 20) << BASEMASK_BASE_SHIFT;
+	val |= (bcm_pcie_mem_resource.end >> 20) << BASEMASK_MASK_SHIFT;
 	val |= BASEMASK_REMAP_EN;
 	bcm_pcie_writel(val, PCIE_BRIDGE_BAR0_BASEMASK_REG);
 
-	val = (BCM_PCIE_MEM_BASE_PA >> 20) << REBASE_ADDR_BASE_SHIFT;
+	val = (bcm_pcie_mem_resource.start >> 20) << REBASE_ADDR_BASE_SHIFT;
 	bcm_pcie_writel(val, PCIE_BRIDGE_BAR0_REBASE_ADDR_REG);
 
 	register_pci_controller(&bcm63xx_pcie_controller);
@@ -334,6 +334,11 @@ static int __init bcm63xx_pci_init(void)
 	if (!bcm63xx_pci_enabled)
 		return -ENODEV;
 
+	if (BCMCPU_IS_6328() || BCMCPU_IS_6362()) {
+		bcm_pcie_mem_resource.start = BCM_PCIE_MEM_BASE_PA_6328;
+		bcm_pcie_mem_resource.end = BCM_PCIE_MEM_END_PA_6328;
+	}
+
 	switch (bcm63xx_get_cpu_id()) {
 	case BCM6328_CPU_ID:
 	case BCM6362_CPU_ID: