avr/qmk/lufa - [no description]

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Diffstat (limited to 'Projects/AVRISP/AVRISP.c')

0 files changed, 0 insertions, 0 deletions

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_ */


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