ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/target/linux/bcm63xx/patches-5.4/130-pinctrl-add-bcm63xx-base-code.patch b/target/linux/bcm63xx/patches-5.4/130-pinctrl-add-bcm63xx-base-code.patch
new file mode 100644
index 0000000..559ec94
--- /dev/null
+++ b/target/linux/bcm63xx/patches-5.4/130-pinctrl-add-bcm63xx-base-code.patch
@@ -0,0 +1,226 @@
+From ab2f33e35e35905a76204138143875251f3e1088 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jonas.gorski@gmail.com>
+Date: Fri, 24 Jun 2016 22:07:42 +0200
+Subject: [PATCH 01/13] pinctrl: add bcm63xx base code
+
+Setup directory and add a helper for bcm63xx pinctrl support.
+
+Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
+---
+ drivers/pinctrl/Kconfig | 1 +
+ drivers/pinctrl/Makefile | 1 +
+ drivers/pinctrl/bcm63xx/Kconfig | 3 +
+ drivers/pinctrl/bcm63xx/Makefile | 1 +
+ drivers/pinctrl/bcm63xx/pinctrl-bcm63xx.c | 142 ++++++++++++++++++++++++++++++
+ drivers/pinctrl/bcm63xx/pinctrl-bcm63xx.h | 14 +++
+ 7 files changed, 163 insertions(+)
+ create mode 100644 drivers/pinctrl/bcm63xx/Kconfig
+ create mode 100644 drivers/pinctrl/bcm63xx/Makefile
+ create mode 100644 drivers/pinctrl/bcm63xx/pinctrl-bcm63xx.c
+ create mode 100644 drivers/pinctrl/bcm63xx/pinctrl-bcm63xx.h
+
+--- a/drivers/pinctrl/Kconfig
++++ b/drivers/pinctrl/Kconfig
+@@ -387,6 +387,7 @@ config PINCTRL_OCELOT
+ source "drivers/pinctrl/actions/Kconfig"
+ source "drivers/pinctrl/aspeed/Kconfig"
+ source "drivers/pinctrl/bcm/Kconfig"
++source "drivers/pinctrl/bcm63xx/Kconfig"
+ source "drivers/pinctrl/berlin/Kconfig"
+ source "drivers/pinctrl/freescale/Kconfig"
+ source "drivers/pinctrl/intel/Kconfig"
+--- a/drivers/pinctrl/Makefile
++++ b/drivers/pinctrl/Makefile
+@@ -50,6 +50,7 @@ obj-$(CONFIG_PINCTRL_OCELOT) += pinctrl-
+ obj-y += actions/
+ obj-$(CONFIG_ARCH_ASPEED) += aspeed/
+ obj-y += bcm/
++obj-y += bcm63xx/
+ obj-$(CONFIG_PINCTRL_BERLIN) += berlin/
+ obj-y += freescale/
+ obj-$(CONFIG_X86) += intel/
+--- /dev/null
++++ b/drivers/pinctrl/bcm63xx/Kconfig
+@@ -0,0 +1,3 @@
++config PINCTRL_BCM63XX
++ bool
++ select GPIO_GENERIC
+--- /dev/null
++++ b/drivers/pinctrl/bcm63xx/Makefile
+@@ -0,0 +1 @@
++obj-$(CONFIG_PINCTRL_BCM63XX) += pinctrl-bcm63xx.o
+--- /dev/null
++++ b/drivers/pinctrl/bcm63xx/pinctrl-bcm63xx.c
+@@ -0,0 +1,155 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2016 Jonas Gorski <jonas.gorski@gmail.com>
++ */
++
++#include <linux/bitops.h>
++#include <linux/device.h>
++#include <linux/gpio/driver.h>
++#include <linux/of_irq.h>
++
++#include "pinctrl-bcm63xx.h"
++#include "../core.h"
++
++#define BANK_SIZE sizeof(u32)
++#define PINS_PER_BANK (BANK_SIZE * BITS_PER_BYTE)
++
++#ifdef CONFIG_OF
++static int bcm63xx_gpio_of_xlate(struct gpio_chip *gc,
++ const struct of_phandle_args *gpiospec,
++ u32 *flags)
++{
++ struct gpio_chip *base = gpiochip_get_data(gc);
++ int pin = gpiospec->args[0];
++
++ if (gc != &base[pin / PINS_PER_BANK])
++ return -EINVAL;
++
++ pin = pin % PINS_PER_BANK;
++
++ if (pin >= gc->ngpio)
++ return -EINVAL;
++
++ if (flags)
++ *flags = gpiospec->args[1];
++
++ return pin;
++}
++#endif
++
++static int bcm63xx_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
++{
++ struct gpio_chip *base = gpiochip_get_data(chip);
++ char irq_name[7]; /* "gpioXX" */
++
++ /* FIXME: this is ugly */
++ sprintf(irq_name, "gpio%d", gpio + PINS_PER_BANK * (chip - base));
++ return of_irq_get_byname(chip->of_node, irq_name);
++}
++
++static int bcm63xx_setup_gpio(struct device *dev, struct gpio_chip *gc,
++ void __iomem *dirout, void __iomem *data,
++ size_t sz, int ngpio)
++
++{
++ int banks, chips, i, ret = -EINVAL;
++
++ chips = DIV_ROUND_UP(ngpio, PINS_PER_BANK);
++ banks = sz / BANK_SIZE;
++
++ for (i = 0; i < chips; i++) {
++ int offset, pins;
++ int reg_offset;
++ char *label;
++
++ label = devm_kasprintf(dev, GFP_KERNEL, "bcm63xx-gpio.%i", i);
++ if (!label)
++ return -ENOMEM;
++
++ offset = i * PINS_PER_BANK;
++ pins = min_t(int, ngpio - offset, PINS_PER_BANK);
++
++ /* the registers are treated like a huge big endian register */
++ reg_offset = (banks - i - 1) * BANK_SIZE;
++
++ ret = bgpio_init(&gc[i], dev, BANK_SIZE, data + reg_offset,
++ NULL, NULL, dirout + reg_offset, NULL,
++ BGPIOF_BIG_ENDIAN_BYTE_ORDER);
++ if (ret)
++ return ret;
++
++ gc[i].request = gpiochip_generic_request;
++ gc[i].free = gpiochip_generic_free;
++
++ if (of_get_property(dev->of_node, "interrupt-names", NULL))
++ gc[i].to_irq = bcm63xx_gpio_to_irq;
++
++#ifdef CONFIG_OF
++ gc[i].of_gpio_n_cells = 2;
++ gc[i].of_xlate = bcm63xx_gpio_of_xlate;
++#endif
++
++ gc[i].label = label;
++ gc[i].ngpio = pins;
++
++ devm_gpiochip_add_data(dev, &gc[i], gc);
++ }
++
++ return 0;
++}
++
++static void bcm63xx_setup_pinranges(struct gpio_chip *gc, const char *name,
++ int ngpio)
++{
++ int i, chips = DIV_ROUND_UP(ngpio, PINS_PER_BANK);
++
++ for (i = 0; i < chips; i++) {
++ int offset, pins;
++
++ offset = i * PINS_PER_BANK;
++ pins = min_t(int, ngpio - offset, PINS_PER_BANK);
++
++ gpiochip_add_pin_range(&gc[i], name, 0, offset, pins);
++ }
++}
++
++struct pinctrl_dev *bcm63xx_pinctrl_register(struct platform_device *pdev,
++ struct pinctrl_desc *desc,
++ void *priv, struct gpio_chip *gc,
++ int ngpio)
++{
++ struct pinctrl_dev *pctldev;
++ struct resource *res;
++ void __iomem *dirout, *data;
++ size_t sz;
++ int ret;
++
++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dirout");
++ dirout = devm_ioremap_resource(&pdev->dev, res);
++ if (IS_ERR(dirout))
++ return ERR_CAST(dirout);
++
++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dat");
++ data = devm_ioremap_resource(&pdev->dev, res);
++ if (IS_ERR(data))
++ return ERR_CAST(data);
++
++ sz = resource_size(res);
++
++ ret = bcm63xx_setup_gpio(&pdev->dev, gc, dirout, data, sz, ngpio);
++ if (ret)
++ return ERR_PTR(ret);
++
++ pctldev = devm_pinctrl_register(&pdev->dev, desc, priv);
++ if (IS_ERR(pctldev))
++ return pctldev;
++
++ bcm63xx_setup_pinranges(gc, pinctrl_dev_get_devname(pctldev), ngpio);
++
++ dev_info(&pdev->dev, "registered at mmio %p\n", dirout);
++
++ return pctldev;
++}
+--- /dev/null
++++ b/drivers/pinctrl/bcm63xx/pinctrl-bcm63xx.h
+@@ -0,0 +1,14 @@
++#ifndef __PINCTRL_BCM63XX
++#define __PINCTRL_BCM63XX
++
++#include <linux/kernel.h>
++#include <linux/gpio.h>
++#include <linux/pinctrl/pinctrl.h>
++#include <linux/platform_device.h>
++
++struct pinctrl_dev *bcm63xx_pinctrl_register(struct platform_device *pdev,
++ struct pinctrl_desc *desc,
++ void *priv, struct gpio_chip *gc,
++ int ngpio);
++
++#endif