ipq806x: add kernel 4.14 support

 - Rebased the patches for 4.14
 - Dropped spi-qup and 0027, 0028, 0029
   clk patches since it's already included
   in upstream.

 Tested on IPQ AP148 Board:
  1) NOR boot and NAND boot
  2) Tested USB and PCIe interfaces
  3) WDOG test
  4) cpu frequency scaling
  5) ethernet, 2G and 5G WiFi
  6) ubi sysupgrade

Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>

1 files changed, 147 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches-4.14/0034-ARM-Add-Krait-L2-register-accessor-functions.patch b/target/linux/ipq806x/patches-4.14/0034-ARM-Add-Krait-L2-register-accessor-functions.patch
new file mode 100644
index 0000000000..3f820fa4f6
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.14/0034-ARM-Add-Krait-L2-register-accessor-functions.patch
@@ -0,0 +1,147 @@
+From patchwork Fri Dec  8 09:42:19 2017
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+Subject: [v4,01/12] ARM: Add Krait L2 register accessor functions
+From: Sricharan R <sricharan@codeaurora.org>
+X-Patchwork-Id: 10102101
+Message-Id: <1512726150-7204-2-git-send-email-sricharan@codeaurora.org>
+To: mturquette@baylibre.com, sboyd@codeaurora.org,
+ devicetree@vger.kernel.org, linux-pm@vger.kernel.org,
+ linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
+ viresh.kumar@linaro.org, linux-arm-kernel@lists.infradead.org
+Cc: sricharan@codeaurora.org, Mark Rutland <mark.rutland@arm.com>,
+ Russell King <linux@arm.linux.org.uk>,
+ Courtney Cavin <courtney.cavin@sonymobile.com>
+Date: Fri,  8 Dec 2017 15:12:19 +0530
+
+From: Stephen Boyd <sboyd@codeaurora.org>
+
+Krait CPUs have a handful of L2 cache controller registers that
+live behind a cp15 based indirection register. First you program
+the indirection register (l2cpselr) to point the L2 'window'
+register (l2cpdr) at what you want to read/write.  Then you
+read/write the 'window' register to do what you want. The
+l2cpselr register is not banked per-cpu so we must lock around
+accesses to it to prevent other CPUs from re-pointing l2cpdr
+underneath us.
+
+Cc: Mark Rutland <mark.rutland@arm.com>
+Cc: Russell King <linux@arm.linux.org.uk>
+Cc: Courtney Cavin <courtney.cavin@sonymobile.com>
+Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
+---
+ arch/arm/common/Kconfig                   |  3 ++
+ arch/arm/common/Makefile                  |  1 +
+ arch/arm/common/krait-l2-accessors.c      | 58 +++++++++++++++++++++++++++++++
+ arch/arm/include/asm/krait-l2-accessors.h | 20 +++++++++++
+ 4 files changed, 82 insertions(+)
+ create mode 100644 arch/arm/common/krait-l2-accessors.c
+ create mode 100644 arch/arm/include/asm/krait-l2-accessors.h
+
+--- a/arch/arm/common/Kconfig
++++ b/arch/arm/common/Kconfig
+@@ -7,6 +7,9 @@ config DMABOUNCE
+	bool
+	select ZONE_DMA
+
++config KRAIT_L2_ACCESSORS
++	bool
++
+ config SHARP_LOCOMO
+	bool
+
+--- a/arch/arm/common/Makefile
++++ b/arch/arm/common/Makefile
+@@ -7,6 +7,7 @@ obj-y				+= firmware.o
+
+ obj-$(CONFIG_SA1111)		+= sa1111.o
+ obj-$(CONFIG_DMABOUNCE)		+= dmabounce.o
++obj-$(CONFIG_KRAIT_L2_ACCESSORS) += krait-l2-accessors.o
+ obj-$(CONFIG_SHARP_LOCOMO)	+= locomo.o
+ obj-$(CONFIG_SHARP_PARAM)	+= sharpsl_param.o
+ obj-$(CONFIG_SHARP_SCOOP)	+= scoop.o
+--- /dev/null
++++ b/arch/arm/common/krait-l2-accessors.c
+@@ -0,0 +1,58 @@
++/*
++ * Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 and
++ * only version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ */
++
++#include <linux/spinlock.h>
++#include <linux/export.h>
++
++#include <asm/barrier.h>
++#include <asm/krait-l2-accessors.h>
++
++static DEFINE_RAW_SPINLOCK(krait_l2_lock);
++
++void krait_set_l2_indirect_reg(u32 addr, u32 val)
++{
++	unsigned long flags;
++
++	raw_spin_lock_irqsave(&krait_l2_lock, flags);
++	/*
++	 * Select the L2 window by poking l2cpselr, then write to the window
++	 * via l2cpdr.
++	 */
++	asm volatile ("mcr p15, 3, %0, c15, c0, 6 @ l2cpselr" : : "r" (addr));
++	isb();
++	asm volatile ("mcr p15, 3, %0, c15, c0, 7 @ l2cpdr" : : "r" (val));
++	isb();
++
++	raw_spin_unlock_irqrestore(&krait_l2_lock, flags);
++}
++EXPORT_SYMBOL(krait_set_l2_indirect_reg);
++
++u32 krait_get_l2_indirect_reg(u32 addr)
++{
++	u32 val;
++	unsigned long flags;
++
++	raw_spin_lock_irqsave(&krait_l2_lock, flags);
++	/*
++	 * Select the L2 window by poking l2cpselr, then read from the window
++	 * via l2cpdr.
++	 */
++	asm volatile ("mcr p15, 3, %0, c15, c0, 6 @ l2cpselr" : : "r" (addr));
++	isb();
++	asm volatile ("mrc p15, 3, %0, c15, c0, 7 @ l2cpdr" : "=r" (val));
++
++	raw_spin_unlock_irqrestore(&krait_l2_lock, flags);
++
++	return val;
++}
++EXPORT_SYMBOL(krait_get_l2_indirect_reg);
+--- /dev/null
++++ b/arch/arm/include/asm/krait-l2-accessors.h
+@@ -0,0 +1,20 @@
++/*
++ * Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 and
++ * only version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ */
++
++#ifndef __ASMARM_KRAIT_L2_ACCESSORS_H
++#define __ASMARM_KRAIT_L2_ACCESSORS_H
++
++extern void krait_set_l2_indirect_reg(u32 addr, u32 val);
++extern u32 krait_get_l2_indirect_reg(u32 addr);
++
++#endif