openwrt/target/linux/bcm63xx/patches-4.19/336-MIPS-BCM63XX-dynamically-set-the-pcie-memory-windows.patch
Adrian Schmutzler e7bfda2c24 brcm63xx: rename target to bcm63xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-02-14 14:10:51 +01:00

71 lines
2.5 KiB
Diff

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: