x86: support kernel 5.10

Add linux 5.10 as testing kernel, copy generic/subtarget configs and target
patches from 5.4.

Signed-off-by: Tony Ambardar <itugrok@yahoo.com>

x86: update target patches for kernel 5.10

Refresh all patches while also dropping:
    800-hwmon-w83627ehf-dont-claim-nct677x.patch

which is now upstreamed as:
    3207408ab4cb ("hwmon: (w83627ehf) remove nct6775 and nct6776 support")

Signed-off-by: Tony Ambardar <itugrok@yahoo.com>

x86: refresh 5.10 target config

Refresh config using "make kernel_oldconfig".

Signed-off-by: Tony Ambardar <itugrok@yahoo.com>

x86: refresh and test all subtarget configs

Refresh configs using "make kernel_oldconfig CONFIG_TARGET=subtarget".

Build and run-tested using QEMU: x86/64, x86/legacy, x86/generic.
Build-tested only: x86/geode.

Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
[squashed commits]
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>

5 files changed, 145 insertions, 0 deletions

diff --git a/target/linux/x86/patches-5.10/011-tune_lzma_options.patch b/target/linux/x86/patches-5.10/011-tune_lzma_options.patch
new file mode 100644
index 0000000000..c19e1f54db
--- /dev/null
+++ b/target/linux/x86/patches-5.10/011-tune_lzma_options.patch
@@ -0,0 +1,22 @@
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -370,7 +370,7 @@ quiet_cmd_bzip2 = BZIP2   $@
+ # ---------------------------------------------------------------------------
+ 
+ quiet_cmd_lzma = LZMA    $@
+-      cmd_lzma = { cat $(real-prereqs) | $(LZMA) e -d20 -lc1 -lp2 -pb2 -eos -si -so; $(size_append); } > $@
++      cmd_lzma = { cat $(real-prereqs) | $(LZMA) e -lc8 -eos -si -so; $(size_append); } > $@
+ 
+ quiet_cmd_lzo = LZO     $@
+       cmd_lzo = { cat $(real-prereqs) | $(KLZOP) -9; $(size_append); } > $@
+--- a/arch/x86/include/asm/boot.h
++++ b/arch/x86/include/asm/boot.h
+@@ -24,7 +24,7 @@
+ # error "Invalid value for CONFIG_PHYSICAL_ALIGN"
+ #endif
+ 
+-#if defined(CONFIG_KERNEL_BZIP2)
++#if defined(CONFIG_KERNEL_BZIP2) || defined(CONFIG_KERNEL_LZMA)
+ # define BOOT_HEAP_SIZE		0x400000
+ #elif defined(CONFIG_KERNEL_ZSTD)
+ /*
diff --git a/target/linux/x86/patches-5.10/012-pcengines-apu2-detect-apuv4-board.patch b/target/linux/x86/patches-5.10/012-pcengines-apu2-detect-apuv4-board.patch
new file mode 100644
index 0000000000..989b91a691
--- /dev/null
+++ b/target/linux/x86/patches-5.10/012-pcengines-apu2-detect-apuv4-board.patch
@@ -0,0 +1,50 @@
+From 3d00da1de3ea36ba44f4a7ba76c8c8b16f98204b Mon Sep 17 00:00:00 2001
+From: "Enrico Weigelt, metux IT consult" <info@metux.net>
+Date: Thu, 12 Dec 2019 14:27:56 +0100
+Subject: [PATCH] platform/x86: pcengines-apuv2: detect apuv4 board
+
+GPIO stuff on APUv4 seems to be the same as on APUv2, so we just
+need to match on DMI data.
+
+Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
+Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+---
+ drivers/platform/x86/pcengines-apuv2.c | 27 ++++++++++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+
+--- a/drivers/platform/x86/pcengines-apuv2.c
++++ b/drivers/platform/x86/pcengines-apuv2.c
+@@ -213,6 +213,33 @@ static const struct dmi_system_id apu_gp
+ 		},
+ 		.driver_data = (void *)&board_apu2,
+ 	},
++	/* APU4 w/ legacy bios < 4.0.8 */
++	{
++		.ident        = "apu4",
++		.matches    = {
++			DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
++			DMI_MATCH(DMI_BOARD_NAME, "APU4")
++		},
++		.driver_data = (void *)&board_apu2,
++	},
++	/* APU4 w/ legacy bios >= 4.0.8 */
++	{
++		.ident       = "apu4",
++		.matches     = {
++			DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
++			DMI_MATCH(DMI_BOARD_NAME, "apu4")
++		},
++		.driver_data = (void *)&board_apu2,
++	},
++	/* APU4 w/ mainline bios */
++	{
++		.ident       = "apu4",
++		.matches     = {
++			DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
++			DMI_MATCH(DMI_BOARD_NAME, "PC Engines apu4")
++		},
++		.driver_data = (void *)&board_apu2,
++	},
+ 	{}
+ };
+ 
diff --git a/target/linux/x86/patches-5.10/100-fix_cs5535_clockevt.patch b/target/linux/x86/patches-5.10/100-fix_cs5535_clockevt.patch
new file mode 100644
index 0000000000..d4de2027ba
--- /dev/null
+++ b/target/linux/x86/patches-5.10/100-fix_cs5535_clockevt.patch
@@ -0,0 +1,13 @@
+--- a/drivers/clocksource/timer-cs5535.c
++++ b/drivers/clocksource/timer-cs5535.c
+@@ -127,7 +127,9 @@ static irqreturn_t mfgpt_tick(int irq, v
+ 		cs5535_mfgpt_write(cs5535_event_clock, MFGPT_REG_SETUP,
+ 				MFGPT_SETUP_CNTEN | MFGPT_SETUP_CMP2);
+ 
+-	cs5535_clockevent.event_handler(&cs5535_clockevent);
++	if (cs5535_clockevent.event_handler)
++		cs5535_clockevent.event_handler(&cs5535_clockevent);
++
+ 	return IRQ_HANDLED;
+ }
+ 
diff --git a/target/linux/x86/patches-5.10/200-pcengines-apu2-reboot.patch b/target/linux/x86/patches-5.10/200-pcengines-apu2-reboot.patch
new file mode 100644
index 0000000000..bc57806c74
--- /dev/null
+++ b/target/linux/x86/patches-5.10/200-pcengines-apu2-reboot.patch
@@ -0,0 +1,19 @@
+--- a/arch/x86/kernel/reboot.c
++++ b/arch/x86/kernel/reboot.c
+@@ -477,6 +477,16 @@ static const struct dmi_system_id reboot
+ 		},
+ 	},
+ 
++	/* PC Engines */
++	{	/* Handle problems with rebooting on PC Engines apu2 */
++		.callback = set_pci_reboot,
++		.ident = "PC Engines apu2",
++		.matches = {
++			DMI_MATCH(DMI_BOARD_VENDOR, "PC Engines"),
++			DMI_MATCH(DMI_BOARD_NAME, "apu2"),
++		},
++	},
++
+ 	/* Sony */
+ 	{	/* Handle problems with rebooting on Sony VGN-Z540N */
+ 		.callback = set_bios_reboot,
diff --git a/target/linux/x86/patches-5.10/300-pcengines_apu1_led.patch b/target/linux/x86/patches-5.10/300-pcengines_apu1_led.patch
new file mode 100644
index 0000000000..9d1e4ab9c2
--- /dev/null
+++ b/target/linux/x86/patches-5.10/300-pcengines_apu1_led.patch
@@ -0,0 +1,41 @@
+From: Andreas Eberlein <foodeas@aeberlein.de>
+Subject: x86: add LED support for PC Engines APU1 with mainline bios
+
+This adds support for the LEDs on PC Engines APU1 with the mainline bios.
+
+Signed-off-by: Andreas Eberlein <foodeas@aeberlein.de>
+---
+--- a/drivers/leds/leds-apu.c
++++ b/drivers/leds/leds-apu.c
+@@ -83,6 +83,7 @@ static const struct apu_led_profile apu1
+ };
+ 
+ static const struct dmi_system_id apu_led_dmi_table[] __initconst = {
++	/* PC Engines APU with "Legacy" bios < 4.0.8 */
+ 	{
+ 		.ident = "apu",
+ 		.matches = {
+@@ -90,6 +91,14 @@ static const struct dmi_system_id apu_le
+ 			DMI_MATCH(DMI_PRODUCT_NAME, "APU")
+ 		}
+ 	},
++	/* PC Engines APU with "Mainline" bios >= 4.0.8 */
++	{
++		.ident = "apu",
++		.matches = {
++			DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
++			DMI_MATCH(DMI_PRODUCT_NAME, "apu1")
++		}
++	},
+ 	{}
+ };
+ MODULE_DEVICE_TABLE(dmi, apu_led_dmi_table);
+@@ -173,7 +182,7 @@ static int __init apu_led_init(void)
+ 	int err;
+ 
+ 	if (!(dmi_match(DMI_SYS_VENDOR, "PC Engines") &&
+-	      dmi_match(DMI_PRODUCT_NAME, "APU"))) {
++	      (dmi_match(DMI_PRODUCT_NAME, "APU") || dmi_match(DMI_PRODUCT_NAME, "apu1")))) {
+ 		pr_err("No PC Engines APUv1 board detected. For APUv2,3 support, enable CONFIG_PCENGINES_APU2\n");
+ 		return -ENODEV;
+ 	}