+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/ahb.c
-+++ b/drivers/net/wireless/ath/ath9k/ahb.c
-@@ -20,7 +20,15 @@
- #include <linux/platform_device.h>
- #include <linux/module.h>
- #include <linux/mod_devicetable.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[] = {
- {
-@@ -69,6 +77,242 @@ 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->dev_id == AR9300_DEVID_AR953X) {
-+ /*
-+ * QCA953x only supports 25MHz refclk.
-+ * Some vendors have an invalid bootstrap option
-+ * set, which would break the WMAC here.
-+ */
-+ pdata->is_clk_25mhz = true;
-+ } else 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;
-@@ -80,6 +324,17 @@ 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");
-@@ -122,13 +377,16 @@ 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;
-@@ -159,6 +417,9 @@ 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;
- }
-@@ -168,6 +429,9 @@ 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,
- };
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/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"
-@@ -1012,6 +1013,9 @@ 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;
projects / openwrt / openwrt.git / blobdiff