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ath79: make ahb wifi work

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Signed-off-by: John Crispin <john@phrozen.org>
This commit is contained in:
John Crispin 2018-05-14 07:11:56 +02:00
parent bcf20e0583
commit 83fb9ec5e0
5 changed files with 385 additions and 4 deletions
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9
package/kernel/mac80211/Makefile
View file

@ -203,7 +203,7 @@ endef
define KernelPackage/ath
$(call KernelPackage/mac80211/Default)
TITLE:=Atheros common driver part
DEPENDS+= @PCI_SUPPORT||USB_SUPPORT||TARGET_ar71xx||TARGET_ath25 +kmod-mac80211
DEPENDS+= @PCI_SUPPORT||USB_SUPPORT||TARGET_ar71xx||TARGET_ath79||TARGET_ath25 +kmod-mac80211
FILES:=$(PKG_BUILD_DIR)/drivers/net/wireless/ath/ath.ko
MENU:=1
endef
@ -268,7 +268,7 @@ define KernelPackage/ath9k-common
TITLE:=Atheros 802.11n wireless devices (common code for ath9k and ath9k_htc)
URL:=https://wireless.wiki.kernel.org/en/users/drivers/ath9k
HIDDEN:=1
DEPENDS+= @PCI_SUPPORT||USB_SUPPORT||TARGET_ar71xx +kmod-ath +@DRIVER_11N_SUPPORT +@DRIVER_11W_SUPPORT
DEPENDS+= @PCI_SUPPORT||USB_SUPPORT||TARGET_ar71xx||TARGET_ath79 +kmod-ath +@DRIVER_11N_SUPPORT +@DRIVER_11W_SUPPORT
FILES:= \
$(PKG_BUILD_DIR)/drivers/net/wireless/ath/ath9k/ath9k_common.ko \
$(PKG_BUILD_DIR)/drivers/net/wireless/ath/ath9k/ath9k_hw.ko
@ -278,7 +278,7 @@ define KernelPackage/ath9k
$(call KernelPackage/mac80211/Default)
TITLE:=Atheros 802.11n PCI wireless cards support
URL:=https://wireless.wiki.kernel.org/en/users/drivers/ath9k
DEPENDS+= @PCI_SUPPORT||TARGET_ar71xx +kmod-ath9k-common
DEPENDS+= @PCI_SUPPORT||TARGET_ar71xx||TARGET_ath79 +kmod-ath9k-common
FILES:= \
$(PKG_BUILD_DIR)/drivers/net/wireless/ath/ath9k/ath9k.ko
AUTOLOAD:=$(call AutoProbe,ath9k)
@ -301,7 +301,7 @@ define KernelPackage/ath9k/config
config ATH9K_UBNTHSR
bool "Support for Ubiquiti UniFi Outdoor+ access point"
depends on PACKAGE_kmod-ath9k && TARGET_ar71xx_generic
depends on PACKAGE_kmod-ath9k && (TARGET_ar71xx_generic||TARGET_ath79)
default y
endef
@ -1618,6 +1618,7 @@ config-$(CONFIG_PACKAGE_ATH_SPECTRAL) += ATH9K_COMMON_SPECTRAL ATH10K_SPECTRAL
config-$(call config_package,ath9k) += ATH9K
config-$(call config_package,ath9k-common) += ATH9K_COMMON
config-$(CONFIG_TARGET_ar71xx) += ATH9K_AHB
config-$(CONFIG_TARGET_ath79) += ATH9K_AHB
config-$(CONFIG_TARGET_ipq40xx) += ATH10K_AHB
config-$(CONFIG_PCI) += ATH9K_PCI
config-$(CONFIG_ATH_USER_REGD) += ATH_USER_REGD

334
package/kernel/mac80211/patches/552-ahb_of.patch Normal file
View file

@ -0,0 +1,334 @@
Index: backports-2017-11-01/drivers/net/wireless/ath/ath9k/ahb.c
===================================================================
--- backports-2017-11-01.orig/drivers/net/wireless/ath/ath9k/ahb.c
+++ backports-2017-11-01/drivers/net/wireless/ath/ath9k/ahb.c
@@ -19,7 +19,15 @@
#include <linux/nl80211.h>
#include <linux/platform_device.h>
#include <linux/module.h>
+#include <linux/of_device.h>
#include "ath9k.h"
+#include <linux/ath9k_platform.h>
+
+#ifdef CONFIG_OF
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <linux/mtd/mtd.h>
+#endif
static const struct platform_device_id ath9k_platform_id_table[] = {
{
@@ -68,6 +76,235 @@ static const struct ath_bus_ops ath_ahb_
.eeprom_read = ath_ahb_eeprom_read,
};
+#ifdef CONFIG_OF
+
+#define QCA955X_DDR_CTL_CONFIG 0x108
+#define QCA955X_DDR_CTL_CONFIG_ACT_WMAC BIT(23)
+
+static int of_get_wifi_cal(struct device_node *np, struct ath9k_platform_data *pdata)
+{
+#ifdef CONFIG_MTD
+ struct device_node *mtd_np = NULL;
+ size_t retlen;
+ int size, ret;
+ struct mtd_info *mtd;
+ const char *part;
+ const __be32 *list;
+ phandle phandle;
+
+ list = of_get_property(np, "mtd-cal-data", &size);
+ if (!list)
+ return 0;
+
+ if (size != (2 * sizeof(*list)))
+ return 1;
+
+ phandle = be32_to_cpup(list++);
+ if (phandle)
+ mtd_np = of_find_node_by_phandle(phandle);
+
+ if (!mtd_np)
+ return 1;
+
+ part = of_get_property(mtd_np, "label", NULL);
+ if (!part)
+ part = mtd_np->name;
+
+ mtd = get_mtd_device_nm(part);
+ if (IS_ERR(mtd))
+ return 1;
+
+ ret = mtd_read(mtd, be32_to_cpup(list), sizeof(pdata->eeprom_data),
+ &retlen, (u8*)pdata->eeprom_data);
+ put_mtd_device(mtd);
+
+#endif
+ return 0;
+}
+
+static int ar913x_wmac_reset(void)
+{
+ ath79_device_reset_set(AR913X_RESET_AMBA2WMAC);
+ mdelay(10);
+
+ ath79_device_reset_clear(AR913X_RESET_AMBA2WMAC);
+ mdelay(10);
+
+ return 0;
+}
+
+static int ar933x_wmac_reset(void)
+{
+ int retries = 20;
+
+ ath79_device_reset_set(AR933X_RESET_WMAC);
+ ath79_device_reset_clear(AR933X_RESET_WMAC);
+
+ while (1) {
+ u32 bootstrap;
+
+ bootstrap = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
+ if ((bootstrap & AR933X_BOOTSTRAP_EEPBUSY) == 0)
+ return 0;
+
+ if (retries-- == 0)
+ break;
+
+ udelay(10000);
+ }
+
+ pr_err("ar933x: WMAC reset timed out");
+ return -ETIMEDOUT;
+}
+
+static int qca955x_wmac_reset(void)
+{
+ int i;
+
+ /* Try to wait for WMAC DDR activity to stop */
+ for (i = 0; i < 10; i++) {
+ if (!(__raw_readl(ath79_ddr_base + QCA955X_DDR_CTL_CONFIG) &
+ QCA955X_DDR_CTL_CONFIG_ACT_WMAC))
+ break;
+
+ udelay(10);
+ }
+
+ ath79_device_reset_set(QCA955X_RESET_RTC);
+ udelay(10);
+ ath79_device_reset_clear(QCA955X_RESET_RTC);
+ udelay(10);
+
+ return 0;
+}
+
+enum {
+ AR913X_WMAC = 0,
+ AR933X_WMAC,
+ AR934X_WMAC,
+ QCA953X_WMAC,
+ QCA955X_WMAC,
+ QCA956X_WMAC,
+};
+
+static int ar9330_get_soc_revision(void)
+{
+ if (ath79_soc_rev == 1)
+ return ath79_soc_rev;
+
+ return 0;
+}
+
+static int ath79_get_soc_revision(void)
+{
+ return ath79_soc_rev;
+}
+
+static const struct of_ath_ahb_data {
+ u16 dev_id;
+ u32 bootstrap_reg;
+ u32 bootstrap_ref;
+
+ int (*soc_revision)(void);
+ int (*wmac_reset)(void);
+} of_ath_ahb_data[] = {
+ [AR913X_WMAC] = {
+ .dev_id = AR5416_AR9100_DEVID,
+ .wmac_reset = ar913x_wmac_reset,
+
+ },
+ [AR933X_WMAC] = {
+ .dev_id = AR9300_DEVID_AR9330,
+ .bootstrap_reg = AR933X_RESET_REG_BOOTSTRAP,
+ .bootstrap_ref = AR933X_BOOTSTRAP_REF_CLK_40,
+ .soc_revision = ar9330_get_soc_revision,
+ .wmac_reset = ar933x_wmac_reset,
+ },
+ [AR934X_WMAC] = {
+ .dev_id = AR9300_DEVID_AR9340,
+ .bootstrap_reg = AR934X_RESET_REG_BOOTSTRAP,
+ .bootstrap_ref = AR934X_BOOTSTRAP_REF_CLK_40,
+ .soc_revision = ath79_get_soc_revision,
+ },
+ [QCA953X_WMAC] = {
+ .dev_id = AR9300_DEVID_AR953X,
+ .bootstrap_reg = QCA953X_RESET_REG_BOOTSTRAP,
+ .bootstrap_ref = QCA953X_BOOTSTRAP_REF_CLK_40,
+ .soc_revision = ath79_get_soc_revision,
+ },
+ [QCA955X_WMAC] = {
+ .dev_id = AR9300_DEVID_QCA955X,
+ .bootstrap_reg = QCA955X_RESET_REG_BOOTSTRAP,
+ .bootstrap_ref = QCA955X_BOOTSTRAP_REF_CLK_40,
+ .wmac_reset = qca955x_wmac_reset,
+ },
+ [QCA956X_WMAC] = {
+ .dev_id = AR9300_DEVID_QCA956X,
+ .bootstrap_reg = QCA956X_RESET_REG_BOOTSTRAP,
+ .bootstrap_ref = QCA956X_BOOTSTRAP_REF_CLK_40,
+ .soc_revision = ath79_get_soc_revision,
+ },
+};
+
+const struct of_device_id of_ath_ahb_match[] = {
+ { .compatible = "qca,ar9130-wmac", .data = &of_ath_ahb_data[AR913X_WMAC] },
+ { .compatible = "qca,ar9330-wmac", .data = &of_ath_ahb_data[AR933X_WMAC] },
+ { .compatible = "qca,ar9340-wmac", .data = &of_ath_ahb_data[AR934X_WMAC] },
+ { .compatible = "qca,qca9530-wmac", .data = &of_ath_ahb_data[QCA953X_WMAC] },
+ { .compatible = "qca,qca9550-wmac", .data = &of_ath_ahb_data[QCA955X_WMAC] },
+ { .compatible = "qca,qca9560-wmac", .data = &of_ath_ahb_data[QCA956X_WMAC] },
+ {},
+};
+MODULE_DEVICE_TABLE(of, of_ath_ahb_match);
+
+static int of_ath_ahb_probe(struct platform_device *pdev)
+{
+ struct ath9k_platform_data *pdata;
+ const struct of_device_id *match;
+ const struct of_ath_ahb_data *data;
+ u8 led_pin;
+
+ match = of_match_device(of_ath_ahb_match, &pdev->dev);
+ data = (const struct of_ath_ahb_data *)match->data;
+
+ pdata = dev_get_platdata(&pdev->dev);
+
+ if (!of_property_read_u8(pdev->dev.of_node, "qca,led-pin", &led_pin))
+ pdata->led_pin = led_pin;
+ else
+ pdata->led_pin = -1;
+
+ if (of_property_read_bool(pdev->dev.of_node, "qca,disable-2ghz"))
+ pdata->disable_2ghz = true;
+
+ if (of_property_read_bool(pdev->dev.of_node, "qca,disable-5ghz"))
+ pdata->disable_5ghz = true;
+
+ if (of_property_read_bool(pdev->dev.of_node, "qca,tx-gain-buffalo"))
+ pdata->tx_gain_buffalo = true;
+
+ if (data->wmac_reset) {
+ data->wmac_reset();
+ pdata->external_reset = data->wmac_reset;
+ }
+
+ if (data->bootstrap_reg && data->bootstrap_ref) {
+ u32 t = ath79_reset_rr(data->bootstrap_reg);
+ if (t & data->bootstrap_ref)
+ pdata->is_clk_25mhz = false;
+ else
+ pdata->is_clk_25mhz = true;
+ }
+
+ pdata->get_mac_revision = data->soc_revision;
+
+ if (of_get_wifi_cal(pdev->dev.of_node, pdata))
+ dev_err(&pdev->dev, "failed to load calibration data from mtd device\n");
+
+ return data->dev_id;
+}
+#endif
+
static int ath_ahb_probe(struct platform_device *pdev)
{
void __iomem *mem;
@@ -79,6 +316,17 @@ static int ath_ahb_probe(struct platform
int ret = 0;
struct ath_hw *ah;
char hw_name[64];
+ u16 dev_id;
+
+ if (id)
+ dev_id = id->driver_data;
+
+#ifdef CONFIG_OF
+ if (pdev->dev.of_node)
+ pdev->dev.platform_data = devm_kzalloc(&pdev->dev,
+ sizeof(struct ath9k_platform_data),
+ GFP_KERNEL);
+#endif
if (!dev_get_platdata(&pdev->dev)) {
dev_err(&pdev->dev, "no platform data specified\n");
@@ -121,13 +369,16 @@ static int ath_ahb_probe(struct platform
sc->mem = mem;
sc->irq = irq;
+#ifdef CONFIG_OF
+ dev_id = of_ath_ahb_probe(pdev);
+#endif
ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc);
if (ret) {
dev_err(&pdev->dev, "request_irq failed\n");
goto err_free_hw;
}
- ret = ath9k_init_device(id->driver_data, sc, &ath_ahb_bus_ops);
+ ret = ath9k_init_device(dev_id, sc, &ath_ahb_bus_ops);
if (ret) {
dev_err(&pdev->dev, "failed to initialize device\n");
goto err_irq;
@@ -158,6 +409,9 @@ static int ath_ahb_remove(struct platfor
free_irq(sc->irq, sc);
ieee80211_free_hw(sc->hw);
}
+#ifdef CONFIG_OF
+ pdev->dev.platform_data = NULL;
+#endif
return 0;
}
@@ -167,6 +421,9 @@ static struct platform_driver ath_ahb_dr
.remove = ath_ahb_remove,
.driver = {
.name = "ath9k",
+#ifdef CONFIG_OF
+ .of_match_table = of_ath_ahb_match,
+#endif
},
.id_table = ath9k_platform_id_table,
};
Index: backports-2017-11-01/drivers/net/wireless/ath/ath9k/ath9k.h
===================================================================
--- backports-2017-11-01.orig/drivers/net/wireless/ath/ath9k/ath9k.h
+++ backports-2017-11-01/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -25,6 +25,7 @@
#include <linux/time.h>
#include <linux/hw_random.h>
#include <linux/gpio/driver.h>
+#include <linux/reset.h>
#include "common.h"
#include "debug.h"
@@ -1023,6 +1024,9 @@ struct ath_softc {
struct ath_hw *sc_ah;
void __iomem *mem;
int irq;
+#ifdef CONFIG_OF
+ struct reset_control *reset;
+#endif
spinlock_t sc_serial_rw;
spinlock_t sc_pm_lock;
spinlock_t sc_pcu_lock;

9
target/linux/ath79/dts/ar9330.dtsi
View file

@ -107,6 +107,15 @@
compatible = "qca,ar9330-gmac";
reg = <0x18070000 0x4>;
};
wmac: gmac@18100000 {
compatible = "qca,ar9330-wmac";
reg = <0x18100000 0x20000>;
interrupts = <2>;
status = "disabled";
};
};
usb_phy: usb-phy {

6
target/linux/ath79/dts/ar9330_glinet_ar150.dts
View file

@ -160,3 +160,9 @@
switch-phy-swap = <0>;
};
};
&wmac {
status = "okay";
mtd-cal-data = <&art 0x1000>;
mtd-mac-address = <&art 0x0>;
};

31
target/linux/ath79/patches-4.14/0034-MIPS-ath79-ath9k-exports.patch Normal file
View file

@ -0,0 +1,31 @@
Index: linux-4.14.42/arch/mips/ath79/common.c
===================================================================
--- linux-4.14.42.orig/arch/mips/ath79/common.c
+++ linux-4.14.42/arch/mips/ath79/common.c
@@ -34,11 +34,13 @@ EXPORT_SYMBOL_GPL(ath79_ddr_freq);
enum ath79_soc_type ath79_soc;
unsigned int ath79_soc_rev;
+EXPORT_SYMBOL_GPL(ath79_soc_rev);
void __iomem *ath79_pll_base;
void __iomem *ath79_reset_base;
EXPORT_SYMBOL_GPL(ath79_reset_base);
-static void __iomem *ath79_ddr_base;
+void __iomem *ath79_ddr_base;
+EXPORT_SYMBOL_GPL(ath79_ddr_base);
static void __iomem *ath79_ddr_wb_flush_base;
static void __iomem *ath79_ddr_pci_win_base;
Index: linux-4.14.42/arch/mips/include/asm/mach-ath79/ath79.h
===================================================================
--- linux-4.14.42.orig/arch/mips/include/asm/mach-ath79/ath79.h
+++ linux-4.14.42/arch/mips/include/asm/mach-ath79/ath79.h
@@ -152,6 +152,7 @@ void ath79_ddr_wb_flush(unsigned int reg
void ath79_ddr_set_pci_windows(void);
extern void __iomem *ath79_pll_base;
+extern void __iomem *ath79_ddr_base;
extern void __iomem *ath79_reset_base;
static inline void ath79_pll_wr(unsigned reg, u32 val)