diff options
Diffstat (limited to 'package/kernel/mac80211/patches/ath9k/552-ath9k-ahb_of.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/ath9k/552-ath9k-ahb_of.patch | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/ath9k/552-ath9k-ahb_of.patch b/package/kernel/mac80211/patches/ath9k/552-ath9k-ahb_of.patch new file mode 100644 index 0000000000..8fd6e4409b --- /dev/null +++ b/package/kernel/mac80211/patches/ath9k/552-ath9k-ahb_of.patch @@ -0,0 +1,337 @@ +--- 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; |