layerscape: add patches-5.4

Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

1 files changed, 164 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/809-jailhouse-0020-jailhouse-Add-simple-debug-console-via-the-hyperviso.patch b/target/linux/layerscape/patches-5.4/809-jailhouse-0020-jailhouse-Add-simple-debug-console-via-the-hyperviso.patch
new file mode 100644
index 0000000000..85ea96184e
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/809-jailhouse-0020-jailhouse-Add-simple-debug-console-via-the-hyperviso.patch
@@ -0,0 +1,164 @@
+From 58d058f1fe1cc5981c57be8b48d3b2f74f25c0d6 Mon Sep 17 00:00:00 2001
+From: Jan Kiszka <jan.kiszka@siemens.com>
+Date: Sun, 11 Sep 2016 23:30:04 +0200
+Subject: [PATCH] jailhouse: Add simple debug console via the hypervisor
+
+Jailhouse allows explicitly enabled cells to write character-wise
+messages to the hypervisor debug console. Make use of this for a
+platform-agnostic boot diagnosis channel, specifically for non-root
+cells. This also comes with earlycon support.
+
+Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
+(cherry picked from commit 60685bd589aef4972d20724863079edf2039eaa2)
+From http://git.kiszka.org/?p=linux.git;a=shortlog;h=refs/heads/queues/jailhouse
+---
+ MAINTAINERS                     |   1 +
+ drivers/virt/Kconfig            |  11 +++++
+ drivers/virt/Makefile           |   1 +
+ drivers/virt/jailhouse_dbgcon.c | 103 ++++++++++++++++++++++++++++++++++++++++
+ 4 files changed, 116 insertions(+)
+ create mode 100644 drivers/virt/jailhouse_dbgcon.c
+
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -8772,6 +8772,7 @@ L:	jailhouse-dev@googlegroups.com
+ S:	Maintained
+ F:	arch/x86/kernel/jailhouse.c
+ F:	arch/x86/include/asm/jailhouse_para.h
++F:	drivers/virt/jailhouse_dbgcon.c
+ 
+ JC42.4 TEMPERATURE SENSOR DRIVER
+ M:	Guenter Roeck <linux@roeck-us.net>
+--- a/drivers/virt/Kconfig
++++ b/drivers/virt/Kconfig
+@@ -31,5 +31,16 @@ config FSL_HV_MANAGER
+           4) A kernel interface for receiving callbacks when a managed
+ 	     partition shuts down.
+ 
++config JAILHOUSE_DBGCON
++	tristate "Jailhouse console driver"
++	depends on X86 || ARM || ARM64
++	help
++	  The Jailhouse hypervisor provides a simple write-only console for
++	  debugging the bootstrap process of its cells. This driver registers
++	  a console with the kernel to make use of it.
++
++	  Note that Jailhouse has to be configured to permit a cell the usage
++	  of the console interface.
++
+ source "drivers/virt/vboxguest/Kconfig"
+ endif
+--- a/drivers/virt/Makefile
++++ b/drivers/virt/Makefile
+@@ -4,4 +4,5 @@
+ #
+ 
+ obj-$(CONFIG_FSL_HV_MANAGER)	+= fsl_hypervisor.o
++obj-$(CONFIG_JAILHOUSE_DBGCON)	+= jailhouse_dbgcon.o
+ obj-y				+= vboxguest/
+--- /dev/null
++++ b/drivers/virt/jailhouse_dbgcon.c
+@@ -0,0 +1,103 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Console driver for running over the Jailhouse partitioning hypervisor
++ *
++ * Copyright (c) Siemens AG, 2016-2018
++ *
++ * Authors:
++ *  Jan Kiszka <jan.kiszka@siemens.com>
++ */
++
++#include <linux/console.h>
++#include <linux/hypervisor.h>
++#include <linux/module.h>
++#include <linux/serial_core.h>
++#ifdef CONFIG_X86
++#include <asm/alternative.h>
++#endif
++#ifdef CONFIG_ARM
++#include <asm/opcodes-virt.h>
++#endif
++
++#define JAILHOUSE_HC_DEBUG_CONSOLE_PUTC		8
++
++static void hypervisor_putc(char c)
++{
++#if defined(CONFIG_X86)
++	int result;
++
++	asm volatile(
++		ALTERNATIVE(".byte 0x0f,0x01,0xc1", ".byte 0x0f,0x01,0xd9",
++			    X86_FEATURE_VMMCALL)
++		: "=a" (result)
++		: "a" (JAILHOUSE_HC_DEBUG_CONSOLE_PUTC), "D" (c)
++		: "memory");
++#elif defined(CONFIG_ARM)
++	register u32 num_res asm("r0") = JAILHOUSE_HC_DEBUG_CONSOLE_PUTC;
++	register u32 arg1 asm("r1") = c;
++
++	asm volatile(
++		__HVC(0x4a48)
++		: "=r" (num_res)
++		: "r" (num_res), "r" (arg1)
++		: "memory");
++#elif defined(CONFIG_ARM64)
++	register u64 num_res asm("x0") = JAILHOUSE_HC_DEBUG_CONSOLE_PUTC;
++	register u64 arg1 asm("x1") = c;
++
++	asm volatile(
++		"hvc #0x4a48\n\t"
++		: "=r" (num_res)
++		: "r" (num_res), "r" (arg1)
++		: "memory");
++#else
++#error Unsupported architecture.
++#endif
++}
++
++static void jailhouse_dbgcon_write(struct console *con, const char *s,
++				   unsigned count)
++{
++	while (count > 0) {
++		hypervisor_putc(*s);
++		count--;
++		s++;
++	}
++}
++
++static int __init early_jailhouse_dbgcon_setup(struct earlycon_device *device,
++					       const char *options)
++{
++	device->con->write = jailhouse_dbgcon_write;
++	return 0;
++}
++
++EARLYCON_DECLARE(jailhouse, early_jailhouse_dbgcon_setup);
++
++static struct console jailhouse_dbgcon = {
++	.name = "jailhouse",
++	.write = jailhouse_dbgcon_write,
++	.flags = CON_PRINTBUFFER | CON_ANYTIME,
++	.index = -1,
++};
++
++static int __init jailhouse_dbgcon_init(void)
++{
++	if (!jailhouse_paravirt())
++		return -ENODEV;
++
++	register_console(&jailhouse_dbgcon);
++	return 0;
++}
++
++static void __exit jailhouse_dbgcon_exit(void)
++{
++	unregister_console(&jailhouse_dbgcon);
++}
++
++module_init(jailhouse_dbgcon_init);
++module_exit(jailhouse_dbgcon_exit);
++
++MODULE_LICENSE("GPL v2");
++MODULE_DESCRIPTION("Jailhouse debug console driver");
++MODULE_AUTHOR("Jan Kiszka <jan.kiszka@siemens.com>");