bcm63xx: make smp kernels boot on older SoCs

Enhance BMIPS support so SMP kernels work on older chips.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37099 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 138 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-3.9/115-MIPS-BCM63XX-add-support-for-the-on-chip-OHCI-contro.patch b/target/linux/brcm63xx/patches-3.9/115-MIPS-BCM63XX-add-support-for-the-on-chip-OHCI-contro.patch
new file mode 100644
index 0000000000..732fe94cfd
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.9/115-MIPS-BCM63XX-add-support-for-the-on-chip-OHCI-contro.patch
@@ -0,0 +1,138 @@
+From 30d22baef255c99a12c4858ce4ab0d45f0d8c9ae Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <florian@openwrt.org>
+Date: Mon, 28 Jan 2013 20:06:24 +0100
+Subject: [PATCH 06/11] MIPS: BCM63XX: add support for the on-chip OHCI
+ controller
+
+Broadcom BCM63XX SoCs include an on-chip OHCI controller which can be
+driven by the ohci-platform generic driver by using specific power
+on/off/suspend callback 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-ohci.c                   |   94 ++++++++++++++++++++
+ .../asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h        |    6 ++
+ 3 files changed, 101 insertions(+), 1 deletion(-)
+ create mode 100644 arch/mips/bcm63xx/dev-usb-ohci.c
+ create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
+
+--- a/arch/mips/bcm63xx/Makefile
++++ b/arch/mips/bcm63xx/Makefile
+@@ -1,7 +1,7 @@
+ 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-uart.o dev-wdt.o \
+-		   dev-usb-usbd.o usb-common.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-ohci.c
+@@ -0,0 +1,94 @@
++/*
++ * 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/usb/ohci_pdriver.h>
++#include <linux/dma-mapping.h>
++#include <linux/clk.h>
++#include <linux/delay.h>
++
++#include <bcm63xx_cpu.h>
++#include <bcm63xx_regs.h>
++#include <bcm63xx_io.h>
++#include <bcm63xx_usb_priv.h>
++#include <bcm63xx_dev_usb_ohci.h>
++
++static struct resource ohci_resources[] = {
++	{
++		.start		= -1, /* filled at runtime */
++		.end		= -1, /* filled at runtime */
++		.flags		= IORESOURCE_MEM,
++	},
++	{
++		.start		= -1, /* filled at runtime */
++		.flags		= IORESOURCE_IRQ,
++	},
++};
++
++static u64 ohci_dmamask = DMA_BIT_MASK(32);
++
++static struct clk *usb_host_clock;
++
++static int bcm63xx_ohci_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_ohci_cfg_set();
++
++	return 0;
++}
++
++static void bcm63xx_ohci_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_ohci_pdata bcm63xx_ohci_pdata = {
++	.big_endian_desc	= 1,
++	.big_endian_mmio	= 1,
++	.no_big_frame_no	= 1,
++	.num_ports		= 1,
++	.power_on		= bcm63xx_ohci_power_on,
++	.power_off		= bcm63xx_ohci_power_off,
++	.power_suspend		= bcm63xx_ohci_power_off,
++};
++
++static struct platform_device bcm63xx_ohci_device = {
++	.name		= "ohci-platform",
++	.id		= -1,
++	.num_resources	= ARRAY_SIZE(ohci_resources),
++	.resource	= ohci_resources,
++	.dev		= {
++		.platform_data		= &bcm63xx_ohci_pdata,
++		.dma_mask		= &ohci_dmamask,
++		.coherent_dma_mask	= DMA_BIT_MASK(32),
++	},
++};
++
++int __init bcm63xx_ohci_register(void)
++{
++	if (BCMCPU_IS_6345() || BCMCPU_IS_6338())
++		return -ENODEV;
++
++	ohci_resources[0].start = bcm63xx_regset_address(RSET_OHCI0);
++	ohci_resources[0].end = ohci_resources[0].start;
++	ohci_resources[0].end += RSET_OHCI_SIZE - 1;
++	ohci_resources[1].start = bcm63xx_get_irq_number(IRQ_OHCI0);
++
++	return platform_device_register(&bcm63xx_ohci_device);
++}
+--- /dev/null
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
+@@ -0,0 +1,6 @@
++#ifndef BCM63XX_DEV_USB_OHCI_H_
++#define BCM63XX_DEV_USB_OHCI_H_
++
++int bcm63xx_ohci_register(void);
++
++#endif /* BCM63XX_DEV_USB_OHCI_H_ */