[OpenWrt-Devel] [PATCH] lantiq: Use the BAR0 base address in the ath PCI fixup code

[Martin Blumenstingl]

Fixes support for AR9287 on TP-Link TD-W8980 and possibly other devices
which have an ath wifi chip at a PCI address other than 0xb8000000
(TD-W8980 for example has it's wifi chip at 0xbc000000).

Signed-off-by: Geoffrey McRae <geoff at spacevs.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
---
This patch was initially written by Geoffrey McRae but it was never included
due to whitespace problems with his patch:
https://lists.openwrt.org/pipermail/openwrt-devel/2014-September/028130.html

 .../0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch      | 8 ++++----
 .../0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch      | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/target/linux/lantiq/patches-3.18/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch b/target/linux/lantiq/patches-3.18/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
index 094d16c..ec769ccf 100644
--- a/target/linux/lantiq/patches-3.18/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
+++ b/target/linux/lantiq/patches-3.18/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
@@ -431,8 +431,6 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +#include <linux/delay.h>
 +#include <lantiq_soc.h>
 +
-+#define LTQ_PCI_MEM_BASE		0x18000000
-+
 +struct ath_fixup {
 +	u16		*cal_data;
 +	unsigned	slot;
@@ -448,6 +446,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +	u16 cmd;
 +	u32 bar0;
 +	u32 val;
++	u32 base;
 +	unsigned i;
 +
 +	for (i = 0; i < ath_num_fixups; i++) {
@@ -471,14 +470,15 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +
 +	pr_info("pci %s: fixup device configuration\n", pci_name(dev));
 +
-+	mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
++	base = dev->resource[0].start;
++	mem = ioremap(base, 0x10000);
 +	if (!mem) {
 +		pr_err("pci %s: ioremap error\n", pci_name(dev));
 +		return;
 +	}
 +
 +	pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
-+	pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
++	pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, base);
 +	pci_read_config_word(dev, PCI_COMMAND, &cmd);
 +	cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
 +	pci_write_config_word(dev, PCI_COMMAND, cmd);
diff --git a/target/linux/lantiq/patches-4.1/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch b/target/linux/lantiq/patches-4.1/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
index 04c2071..72ae1c9 100644
--- a/target/linux/lantiq/patches-4.1/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
+++ b/target/linux/lantiq/patches-4.1/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
@@ -431,8 +431,6 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +#include <linux/delay.h>
 +#include <lantiq_soc.h>
 +
-+#define LTQ_PCI_MEM_BASE		0x18000000
-+
 +struct ath_fixup {
 +	u16		*cal_data;
 +	unsigned	slot;
@@ -448,6 +446,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +	u16 cmd;
 +	u32 bar0;
 +	u32 val;
++	u32 base;
 +	unsigned i;
 +
 +	for (i = 0; i < ath_num_fixups; i++) {
@@ -471,14 +470,15 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +
 +	pr_info("pci %s: fixup device configuration\n", pci_name(dev));
 +
-+	mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
++	base = dev->resource[0].start;
++	mem = ioremap(base, 0x10000);
 +	if (!mem) {
 +		pr_err("pci %s: ioremap error\n", pci_name(dev));
 +		return;
 +	}
 +
 +	pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
-+	pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
++	pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, base);
 +	pci_read_config_word(dev, PCI_COMMAND, &cmd);
 +	cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
 +	pci_write_config_word(dev, PCI_COMMAND, cmd);
-- 
2.5.1
_______________________________________________
openwrt-devel mailing list
openwrt-devel at lists.openwrt.org
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel