diff options
Diffstat (limited to 'target/linux/gemini/patches-4.19/0016-usb-host-fotg2-add-Gemini-specific-handling.patch')
| -rw-r--r-- | target/linux/gemini/patches-4.19/0016-usb-host-fotg2-add-Gemini-specific-handling.patch | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/target/linux/gemini/patches-4.19/0016-usb-host-fotg2-add-Gemini-specific-handling.patch b/target/linux/gemini/patches-4.19/0016-usb-host-fotg2-add-Gemini-specific-handling.patch deleted file mode 100644 index f30ee7991e..0000000000 --- a/target/linux/gemini/patches-4.19/0016-usb-host-fotg2-add-Gemini-specific-handling.patch +++ /dev/null @@ -1,131 +0,0 @@ -From b331ae758123ba20ba41199e007ac33fc0f242e3 Mon Sep 17 00:00:00 2001 -From: Linus Walleij <linus.walleij@linaro.org> -Date: Fri, 21 Apr 2017 22:19:00 +0200 -Subject: [PATCH 16/18] usb: host: fotg2: add Gemini-specific handling - -The Cortina Systems Gemini has bolted on a PHY inside the -silicon that can be handled by six bits in a MISC register in -the system controller. - -If we are running on Gemini, look up a syscon regmap through -a phandle and enable VBUS and optionally the Mini-B connector. - -If the device is flagged as "wakeup-source" using the standard -DT bindings, we also enable this in the global controller for -respective port. - -Signed-off-by: Linus Walleij <linus.walleij@linaro.org> ---- - drivers/usb/host/Kconfig | 1 + - drivers/usb/host/fotg210-hcd.c | 76 ++++++++++++++++++++++++++++++++++ - 2 files changed, 77 insertions(+) - ---- a/drivers/usb/host/Kconfig -+++ b/drivers/usb/host/Kconfig -@@ -372,6 +372,7 @@ config USB_ISP1362_HCD - config USB_FOTG210_HCD - tristate "FOTG210 HCD support" - depends on USB && HAS_DMA && HAS_IOMEM -+ select MFD_SYSCON - ---help--- - Faraday FOTG210 is an OTG controller which can be configured as - an USB2.0 host. It is designed to meet USB2.0 EHCI specification ---- a/drivers/usb/host/fotg210-hcd.c -+++ b/drivers/usb/host/fotg210-hcd.c -@@ -33,6 +33,10 @@ - #include <linux/platform_device.h> - #include <linux/io.h> - #include <linux/clk.h> -+#include <linux/bitops.h> -+/* For Cortina Gemini */ -+#include <linux/mfd/syscon.h> -+#include <linux/regmap.h> - - #include <asm/byteorder.h> - #include <asm/irq.h> -@@ -5558,6 +5562,72 @@ static void fotg210_init(struct fotg210_ - iowrite32(value, &fotg210->regs->otgcsr); - } - -+/* -+ * Gemini-specific initialization function, only executed on the -+ * Gemini SoC using the global misc control register. -+ */ -+#define GEMINI_GLOBAL_MISC_CTRL 0x30 -+#define GEMINI_MISC_USB0_WAKEUP BIT(14) -+#define GEMINI_MISC_USB1_WAKEUP BIT(15) -+#define GEMINI_MISC_USB0_VBUS_ON BIT(22) -+#define GEMINI_MISC_USB1_VBUS_ON BIT(23) -+#define GEMINI_MISC_USB0_MINI_B BIT(29) -+#define GEMINI_MISC_USB1_MINI_B BIT(30) -+ -+static int fotg210_gemini_init(struct device *dev, struct usb_hcd *hcd) -+{ -+ struct device_node *np = dev->of_node; -+ struct regmap *map; -+ bool mini_b; -+ bool wakeup; -+ u32 mask, val; -+ int ret; -+ -+ map = syscon_regmap_lookup_by_phandle(np, "syscon"); -+ if (IS_ERR(map)) { -+ dev_err(dev, "no syscon\n"); -+ return PTR_ERR(map); -+ } -+ mini_b = of_property_read_bool(np, "cortina,gemini-mini-b"); -+ wakeup = of_property_read_bool(np, "wakeup-source"); -+ -+ /* -+ * Figure out if this is USB0 or USB1 by simply checking the -+ * physical base address. -+ */ -+ mask = 0; -+ if (hcd->rsrc_start == 0x69000000) { -+ val = GEMINI_MISC_USB1_VBUS_ON; -+ if (mini_b) -+ val |= GEMINI_MISC_USB1_MINI_B; -+ else -+ mask |= GEMINI_MISC_USB1_MINI_B; -+ if (wakeup) -+ val |= GEMINI_MISC_USB1_WAKEUP; -+ else -+ mask |= GEMINI_MISC_USB1_WAKEUP; -+ } else { -+ val = GEMINI_MISC_USB0_VBUS_ON; -+ if (mini_b) -+ val |= GEMINI_MISC_USB0_MINI_B; -+ else -+ mask |= GEMINI_MISC_USB0_MINI_B; -+ if (wakeup) -+ val |= GEMINI_MISC_USB0_WAKEUP; -+ else -+ mask |= GEMINI_MISC_USB0_WAKEUP; -+ } -+ -+ ret = regmap_update_bits(map, GEMINI_GLOBAL_MISC_CTRL, mask, val); -+ if (ret) { -+ dev_err(dev, "failed to initialize Gemini PHY\n"); -+ return ret; -+ } -+ -+ dev_info(dev, "initialized Gemini PHY\n"); -+ return 0; -+} -+ - /** - * fotg210_hcd_probe - initialize faraday FOTG210 HCDs - * -@@ -5635,6 +5705,12 @@ static int fotg210_hcd_probe(struct plat - - fotg210_init(fotg210); - -+ if (of_device_is_compatible(dev->of_node, "cortina,gemini-usb")) { -+ retval = fotg210_gemini_init(dev, hcd); -+ if (retval) -+ goto failed_dis_clk; -+ } -+ - retval = usb_add_hcd(hcd, irq, IRQF_SHARED); - if (retval) { - dev_err(dev, "failed to add hcd with err %d\n", retval); |