139 lines
4.0 KiB
Diff
139 lines
4.0 KiB
Diff
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-hsspi.o dev-uart.o \
|
|
- dev-wdt.o dev-usb-usbd.o usb-common.o
|
|
+ dev-wdt.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_ */
|