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-rw-r--r--package/kernel/mac80211/patches/300-Revert-ath5k-Remove-AHB-bus-support.patch395
1 files changed, 395 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/300-Revert-ath5k-Remove-AHB-bus-support.patch b/package/kernel/mac80211/patches/300-Revert-ath5k-Remove-AHB-bus-support.patch
new file mode 100644
index 0000000000..cb714995d2
--- /dev/null
+++ b/package/kernel/mac80211/patches/300-Revert-ath5k-Remove-AHB-bus-support.patch
@@ -0,0 +1,395 @@
+From: Felix Fietkau <nbd@openwrt.org>
+Date: Sat, 27 Sep 2014 15:57:09 +0200
+Subject: [PATCH] Revert "ath5k: Remove AHB bus support"
+
+This reverts commit 093ec3c5337434f40d77c1af06c139da3e5ba6dc.
+---
+ create mode 100644 drivers/net/wireless/ath/ath5k/ahb.c
+
+--- a/drivers/net/wireless/ath/ath5k/Kconfig
++++ b/drivers/net/wireless/ath/ath5k/Kconfig
+@@ -1,13 +1,14 @@
+ config ATH5K
+ tristate "Atheros 5xxx wireless cards support"
+ depends on m
+- depends on PCI && MAC80211
++ depends on (PCI || ATHEROS_AR231X) && MAC80211
+ select ATH_COMMON
+ select MAC80211_LEDS
+ select BACKPORT_LEDS_CLASS
+ select BACKPORT_NEW_LEDS
+ select BACKPORT_AVERAGE
+- select ATH5K_PCI
++ select ATH5K_AHB if (ATHEROS_AR231X && !PCI)
++ select ATH5K_PCI if (!ATHEROS_AR231X && PCI)
+ ---help---
+ This module adds support for wireless adapters based on
+ Atheros 5xxx chipset.
+@@ -52,9 +53,16 @@ config ATH5K_TRACER
+
+ If unsure, say N.
+
++config ATH5K_AHB
++ bool "Atheros 5xxx AHB bus support"
++ depends on (ATHEROS_AR231X && !PCI)
++ ---help---
++ This adds support for WiSoC type chipsets of the 5xxx Atheros
++ family.
++
+ config ATH5K_PCI
+ bool "Atheros 5xxx PCI bus support"
+- depends on PCI
++ depends on (!ATHEROS_AR231X && PCI)
+ ---help---
+ This adds support for PCI type chipsets of the 5xxx Atheros
+ family.
+--- a/drivers/net/wireless/ath/ath5k/Makefile
++++ b/drivers/net/wireless/ath/ath5k/Makefile
+@@ -17,5 +17,6 @@ ath5k-y += ani.o
+ ath5k-y += sysfs.o
+ ath5k-y += mac80211-ops.o
+ ath5k-$(CPTCFG_ATH5K_DEBUG) += debug.o
++ath5k-$(CPTCFG_ATH5K_AHB) += ahb.o
+ ath5k-$(CPTCFG_ATH5K_PCI) += pci.o
+ obj-$(CPTCFG_ATH5K) += ath5k.o
+--- /dev/null
++++ b/drivers/net/wireless/ath/ath5k/ahb.c
+@@ -0,0 +1,234 @@
++/*
++ * Copyright (c) 2008-2009 Atheros Communications Inc.
++ * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
++ * Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * Permission to use, copy, modify, and/or distribute this software for any
++ * purpose with or without fee is hereby granted, provided that the above
++ * copyright notice and this permission notice appear in all copies.
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
++ */
++
++#include <linux/nl80211.h>
++#include <linux/platform_device.h>
++#include <linux/etherdevice.h>
++#include <linux/export.h>
++#include <ar231x_platform.h>
++#include "ath5k.h"
++#include "debug.h"
++#include "base.h"
++#include "reg.h"
++
++/* return bus cachesize in 4B word units */
++static void ath5k_ahb_read_cachesize(struct ath_common *common, int *csz)
++{
++ *csz = L1_CACHE_BYTES >> 2;
++}
++
++static bool
++ath5k_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
++{
++ struct ath5k_hw *ah = common->priv;
++ struct platform_device *pdev = to_platform_device(ah->dev);
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ u16 *eeprom, *eeprom_end;
++
++ eeprom = (u16 *) bcfg->radio;
++ eeprom_end = ((void *) bcfg->config) + BOARD_CONFIG_BUFSZ;
++
++ eeprom += off;
++ if (eeprom > eeprom_end)
++ return false;
++
++ *data = *eeprom;
++ return true;
++}
++
++int ath5k_hw_read_srev(struct ath5k_hw *ah)
++{
++ struct platform_device *pdev = to_platform_device(ah->dev);
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ ah->ah_mac_srev = bcfg->devid;
++ return 0;
++}
++
++static int ath5k_ahb_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
++{
++ struct platform_device *pdev = to_platform_device(ah->dev);
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ u8 *cfg_mac;
++
++ if (to_platform_device(ah->dev)->id == 0)
++ cfg_mac = bcfg->config->wlan0_mac;
++ else
++ cfg_mac = bcfg->config->wlan1_mac;
++
++ memcpy(mac, cfg_mac, ETH_ALEN);
++ return 0;
++}
++
++static const struct ath_bus_ops ath_ahb_bus_ops = {
++ .ath_bus_type = ATH_AHB,
++ .read_cachesize = ath5k_ahb_read_cachesize,
++ .eeprom_read = ath5k_ahb_eeprom_read,
++ .eeprom_read_mac = ath5k_ahb_eeprom_read_mac,
++};
++
++/*Initialization*/
++static int ath_ahb_probe(struct platform_device *pdev)
++{
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ struct ath5k_hw *ah;
++ struct ieee80211_hw *hw;
++ struct resource *res;
++ void __iomem *mem;
++ int irq;
++ int ret = 0;
++ u32 reg;
++
++ if (!dev_get_platdata(&pdev->dev)) {
++ dev_err(&pdev->dev, "no platform data specified\n");
++ ret = -EINVAL;
++ goto err_out;
++ }
++
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ if (res == NULL) {
++ dev_err(&pdev->dev, "no memory resource found\n");
++ ret = -ENXIO;
++ goto err_out;
++ }
++
++ mem = ioremap_nocache(res->start, resource_size(res));
++ if (mem == NULL) {
++ dev_err(&pdev->dev, "ioremap failed\n");
++ ret = -ENOMEM;
++ goto err_out;
++ }
++
++ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
++ if (res == NULL) {
++ dev_err(&pdev->dev, "no IRQ resource found\n");
++ ret = -ENXIO;
++ goto err_iounmap;
++ }
++
++ irq = res->start;
++
++ hw = ieee80211_alloc_hw(sizeof(struct ath5k_hw), &ath5k_hw_ops);
++ if (hw == NULL) {
++ dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
++ ret = -ENOMEM;
++ goto err_iounmap;
++ }
++
++ ah = hw->priv;
++ ah->hw = hw;
++ ah->dev = &pdev->dev;
++ ah->iobase = mem;
++ ah->irq = irq;
++ ah->devid = bcfg->devid;
++
++ if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
++ /* Enable WMAC AHB arbitration */
++ reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
++ reg |= AR5K_AR2315_AHB_ARB_CTL_WLAN;
++ iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
++
++ /* Enable global WMAC swapping */
++ reg = ioread32((void __iomem *) AR5K_AR2315_BYTESWAP);
++ reg |= AR5K_AR2315_BYTESWAP_WMAC;
++ iowrite32(reg, (void __iomem *) AR5K_AR2315_BYTESWAP);
++ } else {
++ /* Enable WMAC DMA access (assuming 5312 or 231x*/
++ /* TODO: check other platforms */
++ reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
++ if (to_platform_device(ah->dev)->id == 0)
++ reg |= AR5K_AR5312_ENABLE_WLAN0;
++ else
++ reg |= AR5K_AR5312_ENABLE_WLAN1;
++ iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
++
++ /*
++ * On a dual-band AR5312, the multiband radio is only
++ * used as pass-through. Disable 2 GHz support in the
++ * driver for it
++ */
++ if (to_platform_device(ah->dev)->id == 0 &&
++ (bcfg->config->flags & (BD_WLAN0 | BD_WLAN1)) ==
++ (BD_WLAN1 | BD_WLAN0))
++ ah->ah_capabilities.cap_needs_2GHz_ovr = true;
++ else
++ ah->ah_capabilities.cap_needs_2GHz_ovr = false;
++ }
++
++ ret = ath5k_init_ah(ah, &ath_ahb_bus_ops);
++ if (ret != 0) {
++ dev_err(&pdev->dev, "failed to attach device, err=%d\n", ret);
++ ret = -ENODEV;
++ goto err_free_hw;
++ }
++
++ platform_set_drvdata(pdev, hw);
++
++ return 0;
++
++ err_free_hw:
++ ieee80211_free_hw(hw);
++ err_iounmap:
++ iounmap(mem);
++ err_out:
++ return ret;
++}
++
++static int ath_ahb_remove(struct platform_device *pdev)
++{
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ struct ieee80211_hw *hw = platform_get_drvdata(pdev);
++ struct ath5k_hw *ah;
++ u32 reg;
++
++ if (!hw)
++ return 0;
++
++ ah = hw->priv;
++
++ if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
++ /* Disable WMAC AHB arbitration */
++ reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
++ reg &= ~AR5K_AR2315_AHB_ARB_CTL_WLAN;
++ iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
++ } else {
++ /*Stop DMA access */
++ reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
++ if (to_platform_device(ah->dev)->id == 0)
++ reg &= ~AR5K_AR5312_ENABLE_WLAN0;
++ else
++ reg &= ~AR5K_AR5312_ENABLE_WLAN1;
++ iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
++ }
++
++ ath5k_deinit_ah(ah);
++ iounmap(ah->iobase);
++ ieee80211_free_hw(hw);
++
++ return 0;
++}
++
++static struct platform_driver ath_ahb_driver = {
++ .probe = ath_ahb_probe,
++ .remove = ath_ahb_remove,
++ .driver = {
++ .name = "ar231x-wmac",
++ .owner = THIS_MODULE,
++ },
++};
++
++module_platform_driver(ath_ahb_driver);
+--- a/drivers/net/wireless/ath/ath5k/ath5k.h
++++ b/drivers/net/wireless/ath/ath5k/ath5k.h
+@@ -1647,6 +1647,32 @@ static inline struct ath_regulatory *ath
+ return &(ath5k_hw_common(ah)->regulatory);
+ }
+
++#ifdef CONFIG_ATHEROS_AR231X
++#define AR5K_AR2315_PCI_BASE ((void __iomem *)0xb0100000)
++
++static inline void __iomem *ath5k_ahb_reg(struct ath5k_hw *ah, u16 reg)
++{
++ /* On AR2315 and AR2317 the PCI clock domain registers
++ * are outside of the WMAC register space */
++ if (unlikely((reg >= 0x4000) && (reg < 0x5000) &&
++ (ah->ah_mac_srev >= AR5K_SREV_AR2315_R6)))
++ return AR5K_AR2315_PCI_BASE + reg;
++
++ return ah->iobase + reg;
++}
++
++static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
++{
++ return ioread32(ath5k_ahb_reg(ah, reg));
++}
++
++static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
++{
++ iowrite32(val, ath5k_ahb_reg(ah, reg));
++}
++
++#else
++
+ static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
+ {
+ return ioread32(ah->iobase + reg);
+@@ -1657,6 +1683,8 @@ static inline void ath5k_hw_reg_write(st
+ iowrite32(val, ah->iobase + reg);
+ }
+
++#endif
++
+ static inline enum ath_bus_type ath5k_get_bus_type(struct ath5k_hw *ah)
+ {
+ return ath5k_hw_common(ah)->bus_ops->ath_bus_type;
+--- a/drivers/net/wireless/ath/ath5k/base.c
++++ b/drivers/net/wireless/ath/ath5k/base.c
+@@ -99,6 +99,15 @@ static int ath5k_reset(struct ath5k_hw *
+
+ /* Known SREVs */
+ static const struct ath5k_srev_name srev_names[] = {
++#ifdef CONFIG_ATHEROS_AR231X
++ { "5312", AR5K_VERSION_MAC, AR5K_SREV_AR5312_R2 },
++ { "5312", AR5K_VERSION_MAC, AR5K_SREV_AR5312_R7 },
++ { "2313", AR5K_VERSION_MAC, AR5K_SREV_AR2313_R8 },
++ { "2315", AR5K_VERSION_MAC, AR5K_SREV_AR2315_R6 },
++ { "2315", AR5K_VERSION_MAC, AR5K_SREV_AR2315_R7 },
++ { "2317", AR5K_VERSION_MAC, AR5K_SREV_AR2317_R1 },
++ { "2317", AR5K_VERSION_MAC, AR5K_SREV_AR2317_R2 },
++#else
+ { "5210", AR5K_VERSION_MAC, AR5K_SREV_AR5210 },
+ { "5311", AR5K_VERSION_MAC, AR5K_SREV_AR5311 },
+ { "5311A", AR5K_VERSION_MAC, AR5K_SREV_AR5311A },
+@@ -117,6 +126,7 @@ static const struct ath5k_srev_name srev
+ { "5418", AR5K_VERSION_MAC, AR5K_SREV_AR5418 },
+ { "2425", AR5K_VERSION_MAC, AR5K_SREV_AR2425 },
+ { "2417", AR5K_VERSION_MAC, AR5K_SREV_AR2417 },
++#endif
+ { "xxxxx", AR5K_VERSION_MAC, AR5K_SREV_UNKNOWN },
+ { "5110", AR5K_VERSION_RAD, AR5K_SREV_RAD_5110 },
+ { "5111", AR5K_VERSION_RAD, AR5K_SREV_RAD_5111 },
+@@ -132,6 +142,10 @@ static const struct ath5k_srev_name srev
+ { "5413", AR5K_VERSION_RAD, AR5K_SREV_RAD_5413 },
+ { "5424", AR5K_VERSION_RAD, AR5K_SREV_RAD_5424 },
+ { "5133", AR5K_VERSION_RAD, AR5K_SREV_RAD_5133 },
++#ifdef CONFIG_ATHEROS_AR231X
++ { "2316", AR5K_VERSION_RAD, AR5K_SREV_RAD_2316 },
++ { "2317", AR5K_VERSION_RAD, AR5K_SREV_RAD_2317 },
++#endif
+ { "xxxxx", AR5K_VERSION_RAD, AR5K_SREV_UNKNOWN },
+ };
+
+--- a/drivers/net/wireless/ath/ath5k/led.c
++++ b/drivers/net/wireless/ath/ath5k/led.c
+@@ -163,14 +163,20 @@ int ath5k_init_leds(struct ath5k_hw *ah)
+ {
+ int ret = 0;
+ struct ieee80211_hw *hw = ah->hw;
++#ifndef CONFIG_ATHEROS_AR231X
+ struct pci_dev *pdev = ah->pdev;
++#endif
+ char name[ATH5K_LED_MAX_NAME_LEN + 1];
+ const struct pci_device_id *match;
+
+ if (!ah->pdev)
+ return 0;
+
++#ifdef CONFIG_ATHEROS_AR231X
++ match = NULL;
++#else
+ match = pci_match_id(&ath5k_led_devices[0], pdev);
++#endif
+ if (match) {
+ __set_bit(ATH_STAT_LEDSOFT, ah->status);
+ ah->led_pin = ATH_PIN(match->driver_data);
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