diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.18/108-MIPS-BCM63XX-add-support-for-the-on-chip-EHCI-contro.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-3.18/108-MIPS-BCM63XX-add-support-for-the-on-chip-EHCI-contro.patch | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.18/108-MIPS-BCM63XX-add-support-for-the-on-chip-EHCI-contro.patch b/target/linux/brcm63xx/patches-3.18/108-MIPS-BCM63XX-add-support-for-the-on-chip-EHCI-contro.patch new file mode 100644 index 0000000..8b1f8d2 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.18/108-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_ */ |