bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)

1 files changed, 168 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0527-reset-Move-reset-simple-header-out-of-drivers-reset.patch b/target/linux/bcm27xx/patches-5.4/950-0527-reset-Move-reset-simple-header-out-of-drivers-reset.patch
new file mode 100644
index 0000000000..3df4fde439
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0527-reset-Move-reset-simple-header-out-of-drivers-reset.patch
@@ -0,0 +1,168 @@
+From e108e2c34b3acc70ec55b7d0772abb79c96319b2 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 28 Jan 2020 09:33:52 +0100
+Subject: [PATCH] reset: Move reset-simple header out of drivers/reset
+
+The reset-simple code can be useful for drivers outside of drivers/reset
+that have a few reset controls as part of their features. Let's move it to
+include/linux/reset.
+
+Cc: Philipp Zabel <p.zabel@pengutronix.de>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/reset/reset-simple.c                    | 3 +--
+ drivers/reset/reset-socfpga.c                   | 3 +--
+ drivers/reset/reset-sunxi.c                     | 3 +--
+ drivers/reset/reset-uniphier-glue.c             | 3 +--
+ {drivers => include/linux}/reset/reset-simple.h | 0
+ 5 files changed, 4 insertions(+), 8 deletions(-)
+ rename {drivers => include/linux}/reset/reset-simple.h (100%)
+
+--- a/drivers/reset/reset-simple.c
++++ b/drivers/reset/reset-simple.c
+@@ -18,10 +18,9 @@
+ #include <linux/of_device.h>
+ #include <linux/platform_device.h>
+ #include <linux/reset-controller.h>
++#include <linux/reset/reset-simple.h>
+ #include <linux/spinlock.h>
+ 
+-#include "reset-simple.h"
+-
+ static inline struct reset_simple_data *
+ to_reset_simple_data(struct reset_controller_dev *rcdev)
+ {
+--- a/drivers/reset/reset-socfpga.c
++++ b/drivers/reset/reset-socfpga.c
+@@ -11,13 +11,12 @@
+ #include <linux/of_address.h>
+ #include <linux/platform_device.h>
+ #include <linux/reset-controller.h>
++#include <linux/reset/reset-simple.h>
+ #include <linux/reset/socfpga.h>
+ #include <linux/slab.h>
+ #include <linux/spinlock.h>
+ #include <linux/types.h>
+ 
+-#include "reset-simple.h"
+-
+ #define SOCFPGA_NR_BANKS	8
+ 
+ static int a10_reset_init(struct device_node *np)
+--- a/drivers/reset/reset-sunxi.c
++++ b/drivers/reset/reset-sunxi.c
+@@ -14,13 +14,12 @@
+ #include <linux/of_address.h>
+ #include <linux/platform_device.h>
+ #include <linux/reset-controller.h>
++#include <linux/reset/reset-simple.h>
+ #include <linux/reset/sunxi.h>
+ #include <linux/slab.h>
+ #include <linux/spinlock.h>
+ #include <linux/types.h>
+ 
+-#include "reset-simple.h"
+-
+ static int sunxi_reset_init(struct device_node *np)
+ {
+ 	struct reset_simple_data *data;
+--- a/drivers/reset/reset-uniphier-glue.c
++++ b/drivers/reset/reset-uniphier-glue.c
+@@ -9,8 +9,7 @@
+ #include <linux/of_device.h>
+ #include <linux/platform_device.h>
+ #include <linux/reset.h>
+-
+-#include "reset-simple.h"
++#include <linux/reset/reset-simple.h>
+ 
+ #define MAX_CLKS	2
+ #define MAX_RSTS	2
+--- a/drivers/reset/reset-simple.h
++++ /dev/null
+@@ -1,41 +0,0 @@
+-/* SPDX-License-Identifier: GPL-2.0-or-later */
+-/*
+- * Simple Reset Controller ops
+- *
+- * Based on Allwinner SoCs Reset Controller driver
+- *
+- * Copyright 2013 Maxime Ripard
+- *
+- * Maxime Ripard <maxime.ripard@free-electrons.com>
+- */
+-
+-#ifndef __RESET_SIMPLE_H__
+-#define __RESET_SIMPLE_H__
+-
+-#include <linux/io.h>
+-#include <linux/reset-controller.h>
+-#include <linux/spinlock.h>
+-
+-/**
+- * struct reset_simple_data - driver data for simple reset controllers
+- * @lock: spinlock to protect registers during read-modify-write cycles
+- * @membase: memory mapped I/O register range
+- * @rcdev: reset controller device base structure
+- * @active_low: if true, bits are cleared to assert the reset. Otherwise, bits
+- *              are set to assert the reset. Note that this says nothing about
+- *              the voltage level of the actual reset line.
+- * @status_active_low: if true, bits read back as cleared while the reset is
+- *                     asserted. Otherwise, bits read back as set while the
+- *                     reset is asserted.
+- */
+-struct reset_simple_data {
+-	spinlock_t			lock;
+-	void __iomem			*membase;
+-	struct reset_controller_dev	rcdev;
+-	bool				active_low;
+-	bool				status_active_low;
+-};
+-
+-extern const struct reset_control_ops reset_simple_ops;
+-
+-#endif /* __RESET_SIMPLE_H__ */
+--- /dev/null
++++ b/include/linux/reset/reset-simple.h
+@@ -0,0 +1,41 @@
++/* SPDX-License-Identifier: GPL-2.0-or-later */
++/*
++ * Simple Reset Controller ops
++ *
++ * Based on Allwinner SoCs Reset Controller driver
++ *
++ * Copyright 2013 Maxime Ripard
++ *
++ * Maxime Ripard <maxime.ripard@free-electrons.com>
++ */
++
++#ifndef __RESET_SIMPLE_H__
++#define __RESET_SIMPLE_H__
++
++#include <linux/io.h>
++#include <linux/reset-controller.h>
++#include <linux/spinlock.h>
++
++/**
++ * struct reset_simple_data - driver data for simple reset controllers
++ * @lock: spinlock to protect registers during read-modify-write cycles
++ * @membase: memory mapped I/O register range
++ * @rcdev: reset controller device base structure
++ * @active_low: if true, bits are cleared to assert the reset. Otherwise, bits
++ *              are set to assert the reset. Note that this says nothing about
++ *              the voltage level of the actual reset line.
++ * @status_active_low: if true, bits read back as cleared while the reset is
++ *                     asserted. Otherwise, bits read back as set while the
++ *                     reset is asserted.
++ */
++struct reset_simple_data {
++	spinlock_t			lock;
++	void __iomem			*membase;
++	struct reset_controller_dev	rcdev;
++	bool				active_low;
++	bool				status_active_low;
++};
++
++extern const struct reset_control_ops reset_simple_ops;
++
++#endif /* __RESET_SIMPLE_H__ */