brcm63xx: add linux 4.4 support

[openwrt.git] / target / linux / brcm63xx / patches-4.4 / 108-MIPS-BCM63XX-add-support-for-the-on-chip-EHCI-contro.patch

diff --git a/target/linux/brcm63xx/patches-4.4/108-MIPS-BCM63XX-add-support-for-the-on-chip-EHCI-contro.patch b/target/linux/brcm63xx/patches-4.4/108-MIPS-BCM63XX-add-support-for-the-on-chip-EHCI-contro.patch
new file mode 100644 (file)
index 0000000..8b1f8d2
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.4/108-MIPS-BCM63XX-add-support-for-the-on-chip-EHCI-contro.patch
@@ -0,0 +1,137 @@
+From e38f13bd6408769c0b565bb1079024f496eee121 Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <florian@openwrt.org>
+Date: Mon, 28 Jan 2013 20:06:27 +0100
+Subject: [PATCH 09/11] MIPS: BCM63XX: add support for the on-chip EHCI
+ controller
+
+Broadcom BCM63XX SoCs include an on-chip EHCI controller which can be
+driven by the generic ehci-platform driver by using specific power
+on/off/suspend callbacks to manage clocks and hardware specific
+configuration.
+
+Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
+Signed-off-by: Florian Fainelli <florian@openwrt.org>
+---
+ arch/mips/bcm63xx/Makefile                         |    2 +-
+ arch/mips/bcm63xx/dev-usb-ehci.c                   |   92 ++++++++++++++++++++
+ .../asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h        |    6 ++
+ 3 files changed, 99 insertions(+), 1 deletion(-)
+ create mode 100644 arch/mips/bcm63xx/dev-usb-ehci.c
+ create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
+
+--- a/arch/mips/bcm63xx/Makefile
++++ b/arch/mips/bcm63xx/Makefile
+@@ -1,7 +1,8 @@
+ obj-y         += clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \
+                  setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
+                  dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \
+-                 dev-wdt.o dev-usb-ohci.o dev-usb-usbd.o usb-common.o
++                 dev-wdt.o dev-usb-ehci.o dev-usb-ohci.o dev-usb-usbd.o \
++                 usb-common.o
+ obj-$(CONFIG_EARLY_PRINTK)    += early_printk.o
+ 
+ obj-y         += boards/
+--- /dev/null
++++ b/arch/mips/bcm63xx/dev-usb-ehci.c
+@@ -0,0 +1,92 @@
++/*
++ * 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) 2008 Maxime Bizon <mbizon@freebox.fr>
++ * Copyright (C) 2013 Florian Fainelli <florian@openwrt.org>
++ */
++
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/platform_device.h>
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/usb/ehci_pdriver.h>
++#include <linux/dma-mapping.h>
++
++#include <bcm63xx_cpu.h>
++#include <bcm63xx_regs.h>
++#include <bcm63xx_io.h>
++#include <bcm63xx_usb_priv.h>
++#include <bcm63xx_dev_usb_ehci.h>
++
++static struct resource ehci_resources[] = {
++      {
++              .start          = -1, /* filled at runtime */
++              .end            = -1, /* filled at runtime */
++              .flags          = IORESOURCE_MEM,
++      },
++      {
++              .start          = -1, /* filled at runtime */
++              .flags          = IORESOURCE_IRQ,
++      },
++};
++
++static u64 ehci_dmamask = DMA_BIT_MASK(32);
++
++static struct clk *usb_host_clock;
++
++static int bcm63xx_ehci_power_on(struct platform_device *pdev)
++{
++      usb_host_clock = clk_get(&pdev->dev, "usbh");
++      if (IS_ERR_OR_NULL(usb_host_clock))
++              return -ENODEV;
++
++      clk_prepare_enable(usb_host_clock);
++
++      bcm63xx_usb_priv_ehci_cfg_set();
++
++      return 0;
++}
++
++static void bcm63xx_ehci_power_off(struct platform_device *pdev)
++{
++      if (!IS_ERR_OR_NULL(usb_host_clock)) {
++              clk_disable_unprepare(usb_host_clock);
++              clk_put(usb_host_clock);
++      }
++}
++
++static struct usb_ehci_pdata bcm63xx_ehci_pdata = {
++      .big_endian_desc        = 1,
++      .big_endian_mmio        = 1,
++      .power_on               = bcm63xx_ehci_power_on,
++      .power_off              = bcm63xx_ehci_power_off,
++      .power_suspend          = bcm63xx_ehci_power_off,
++};
++
++static struct platform_device bcm63xx_ehci_device = {
++      .name           = "ehci-platform",
++      .id             = -1,
++      .num_resources  = ARRAY_SIZE(ehci_resources),
++      .resource       = ehci_resources,
++      .dev            = {
++              .platform_data          = &bcm63xx_ehci_pdata,
++              .dma_mask               = &ehci_dmamask,
++              .coherent_dma_mask      = DMA_BIT_MASK(32),
++      },
++};
++
++int __init bcm63xx_ehci_register(void)
++{
++      if (!BCMCPU_IS_6328() && !BCMCPU_IS_6358() && !BCMCPU_IS_6362() && !BCMCPU_IS_6368())
++              return 0;
++
++      ehci_resources[0].start = bcm63xx_regset_address(RSET_EHCI0);
++      ehci_resources[0].end = ehci_resources[0].start;
++      ehci_resources[0].end += RSET_EHCI_SIZE - 1;
++      ehci_resources[1].start = bcm63xx_get_irq_number(IRQ_EHCI0);
++
++      return platform_device_register(&bcm63xx_ehci_device);
++}
+--- /dev/null
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
+@@ -0,0 +1,6 @@
++#ifndef BCM63XX_DEV_USB_EHCI_H_
++#define BCM63XX_DEV_USB_EHCI_H_
++
++int bcm63xx_ehci_register(void);
++
++#endif /* BCM63XX_DEV_USB_EHCI_H_ */