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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
@@ -41,10 +41,10 @@
#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:
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