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gemini: Add v5.4 kernel patches 

This adds the kernel patches needed for the Gemini.
Just 7 patches, 5 of them are already upstream.

Notably we incorperate the temperature sensor on the
hard drive to drive temperature control of the NAS
chassis. This is required for the DIR-685 which has
no external temperature sensor.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[use the drivetemp package over the backport]
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This commit is contained in:
Linus Walleij 2020-03-21 14:05:53 +01:00 committed by Christian Lamparter
parent 711bd33cd1
commit ea2d284082
4 changed files with 386 additions and 0 deletions
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131
target/linux/gemini/patches-5.4/0001-usb-host-fotg2-add-Gemini-specific-handling.patch Normal file
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@ -0,0 +1,131 @@
From 3aaff88a0f5e154aa5a489d59fd4015a2a937c23 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 1/7] 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
@@ -363,6 +363,7 @@ 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);

37
target/linux/gemini/patches-5.4/0002-ARM-dts-Augment-DIR-685-partition-table-for-OpenWrt.patch Normal file
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@ -0,0 +1,37 @@
From a2de8560885469f3d76c80207a669029e4fc8a45 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 11 Mar 2019 15:44:29 +0100
Subject: [PATCH 2/7] ARM: dts: Augment DIR-685 partition table for OpenWrt
Rename the firmware partition so that the firmware MTD
splitter will do its job, drop the rootfs arguments as
the MTD splitter will set this up automatically.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/boot/dts/gemini-dlink-dir-685.dts | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm/boot/dts/gemini-dlink-dir-685.dts
+++ b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
@@ -20,7 +20,7 @@
};
chosen {
- bootargs = "console=ttyS0,19200n8 root=/dev/sda1 rw rootwait consoleblank=300";
+ bootargs = "console=ttyS0,19200n8 consoleblank=300";
stdout-path = "uart0:19200n8";
};
@@ -285,9 +285,9 @@
* this is called "upgrade" on the vendor system.
*/
partition@40000 {
- label = "upgrade";
+ compatible = "wrg";
+ label = "firmware";
reg = <0x00040000 0x01f40000>;
- read-only;
};
/* RGDB, Residental Gateway Database? */
partition@1f80000 {

117
target/linux/gemini/patches-5.4/0003-ARM-dts-gemini-Rename-IDE-nodes.patch Normal file
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@ -0,0 +1,117 @@
From 9b95b301b219df19c20f4a563f1da6338b09b0d0 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 31 Dec 2019 18:14:28 +0100
Subject: [PATCH 3/7] ARM: dts: gemini: Rename IDE nodes
By renaming the ATA drive nodes to "ide@" we activate the
semantic checks to the DT schema for the controller and use
the correct notation for PATA drives.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/boot/dts/gemini-dlink-dir-685.dts | 2 +-
arch/arm/boot/dts/gemini-dlink-dns-313.dts | 2 +-
arch/arm/boot/dts/gemini-nas4220b.dts | 4 ++--
arch/arm/boot/dts/gemini-sl93512r.dts | 4 ++--
arch/arm/boot/dts/gemini-sq201.dts | 2 +-
arch/arm/boot/dts/gemini.dtsi | 8 ++++++--
6 files changed, 13 insertions(+), 9 deletions(-)
--- a/arch/arm/boot/dts/gemini-dlink-dir-685.dts
+++ b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
@@ -443,7 +443,7 @@
};
};
- ata@63000000 {
+ ide@63000000 {
status = "okay";
};
--- a/arch/arm/boot/dts/gemini-dlink-dns-313.dts
+++ b/arch/arm/boot/dts/gemini-dlink-dns-313.dts
@@ -297,7 +297,7 @@
};
};
- ata@63000000 {
+ ide@63000000 {
status = "okay";
};
};
--- a/arch/arm/boot/dts/gemini-nas4220b.dts
+++ b/arch/arm/boot/dts/gemini-nas4220b.dts
@@ -170,11 +170,11 @@
};
};
- ata@63000000 {
+ ide@63000000 {
status = "okay";
};
- ata@63400000 {
+ ide@63400000 {
status = "okay";
};
--- a/arch/arm/boot/dts/gemini-sl93512r.dts
+++ b/arch/arm/boot/dts/gemini-sl93512r.dts
@@ -293,11 +293,11 @@
};
};
- ata@63000000 {
+ ide@63000000 {
status = "okay";
};
- ata@63400000 {
+ ide@63400000 {
status = "okay";
};
--- a/arch/arm/boot/dts/gemini-sq201.dts
+++ b/arch/arm/boot/dts/gemini-sq201.dts
@@ -289,7 +289,7 @@
};
};
- ata@63000000 {
+ ide@63000000 {
status = "okay";
};
--- a/arch/arm/boot/dts/gemini.dtsi
+++ b/arch/arm/boot/dts/gemini.dtsi
@@ -356,7 +356,7 @@
};
};
- ata@63000000 {
+ ide@63000000 {
compatible = "cortina,gemini-pata", "faraday,ftide010";
reg = <0x63000000 0x1000>;
interrupts = <4 IRQ_TYPE_EDGE_RISING>;
@@ -365,9 +365,11 @@
clock-names = "PCLK";
sata = <&sata>;
status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
};
- ata@63400000 {
+ ide@63400000 {
compatible = "cortina,gemini-pata", "faraday,ftide010";
reg = <0x63400000 0x1000>;
interrupts = <5 IRQ_TYPE_EDGE_RISING>;
@@ -376,6 +378,8 @@
clock-names = "PCLK";
sata = <&sata>;
status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
};
dma-controller@67000000 {

101
target/linux/gemini/patches-5.4/0004-ARM-dts-gemini-Add-thermal-zone-to-DIR-685.patch Normal file
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@ -0,0 +1,101 @@
From 2b2e9d0e1ee4765b21c648235489028c6dc7e336 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 31 Dec 2019 18:18:08 +0100
Subject: [PATCH 4/7] ARM: dts: gemini: Add thermal zone to DIR-685
The DIR-685 can now exploit the thermal zone added by the
drive temperature sensor inside the hard drive. We have
patched the libata subsystem to assign the device nodes
properly to the SCSI devices and this is what the drivetemp
driver will use to populate the sensor and the thermal
zone, so pick that up into the thermal zone and let this
control the fan.
The hardware lacks an embedded temperature sensor so the
D-Link vendor firmware uses this method to control the
temperature of the NAS enclosure using the thermal sensor
inside the hard drive.
The drive temperature trigger points to be used comes from
the vendor firmware.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/boot/dts/gemini-dlink-dir-685.dts | 48 ++++++++++++++++++++--
1 file changed, 45 insertions(+), 3 deletions(-)
--- a/arch/arm/boot/dts/gemini-dlink-dir-685.dts
+++ b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
@@ -119,13 +119,11 @@
/*
* This is a Sunon Maglev GM0502PFV2-8 cooling fan @10000 RPM.
- * Since the platform has no temperature sensor, this is controlled
- * from userspace by using the hard disks S.M.A.R.T. temperature
* sensor. It is turned on when the temperature exceeds 46 degrees
* and turned off when the temperatures goes below 41 degrees
* (celsius).
*/
- gpio-fan {
+ fan0: gpio-fan {
compatible = "gpio-fan";
/* Collides with IDE */
gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
@@ -133,6 +131,40 @@
#cooling-cells = <2>;
};
+ thermal-zones {
+ chassis-thermal {
+ /* Poll every 20 seconds */
+ polling-delay = <20000>;
+ /* Poll every 2nd second when cooling */
+ polling-delay-passive = <2000>;
+ /* Use the thermal sensor in the hard drive */
+ thermal-sensors = <&drive0>;
+
+ /* Tripping points from the fan.script in the rootfs */
+ trips {
+ alert: chassis-alert {
+ /* At 43 degrees turn on the fan */
+ temperature = <43000>;
+ hysteresis = <3000>;
+ type = "active";
+ };
+ crit: chassis-crit {
+ /* Just shut down at 60 degrees */
+ temperature = <60000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&alert>;
+ cooling-device = <&fan0 1 1>;
+ };
+ };
+ };
+ };
+
/*
* The touchpad input is connected to a GPIO bit-banged
* I2C bus.
@@ -445,6 +477,16 @@
ide@63000000 {
status = "okay";
+
+ /*
+ * This drive may have a temperature sensor with a
+ * thermal zone we can use for thermal control of the
+ * chassis temperature using the fan.
+ */
+ drive0: ide-port@0 {
+ reg = <0>;
+ #thermal-sensor-cells = <0>;
+ };
};
display-controller@6a000000 {