usb, clock controller
This commit is contained in:
haru
parent
5605892411
commit
207b4c8202
1
.gitignore
vendored
1
.gitignore
vendored
@ -49,6 +49,7 @@
|
|||||||
*.zst
|
*.zst
|
||||||
Module.symvers
|
Module.symvers
|
||||||
modules.order
|
modules.order
|
||||||
|
uImage
|
||||||
|
|
||||||
#
|
#
|
||||||
# Top-level generic files
|
# Top-level generic files
|
||||||
|
|||||||
@ -80,4 +80,22 @@
|
|||||||
interrupts = <12>;
|
interrupts = <12>;
|
||||||
reg-shift = <2>;
|
reg-shift = <2>;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
clock-controller@b2100000 {
|
||||||
|
compatible = "cavium,cnc1800l-clockctrl";
|
||||||
|
reg = <0xb2100000 0x1000>;
|
||||||
|
clocks = <&pclk>;
|
||||||
|
};
|
||||||
|
|
||||||
|
usb0: ohci@80210000 {
|
||||||
|
compatible = "cavium,cnc1800l-ohci", "usb-ohci";
|
||||||
|
reg = <0x80210000 0x1000>;
|
||||||
|
interrupts = <27>;
|
||||||
|
};
|
||||||
|
|
||||||
|
usb1: ehci@80210000 {
|
||||||
|
compatible = "cavium,cnc1800l-ehci", "usb-ehci";
|
||||||
|
reg = <0x80200000 0x1000>;
|
||||||
|
interrupts = <22>;
|
||||||
|
};
|
||||||
};
|
};
|
||||||
@ -25,4 +25,11 @@
|
|||||||
#define PA_TIMER1_BASE (PA_IO_REGS_BASE + 0x180000)
|
#define PA_TIMER1_BASE (PA_IO_REGS_BASE + 0x180000)
|
||||||
#define PA_APB_TIMER_BASE (PA_IO_REGS_BASE + 0xe2000)
|
#define PA_APB_TIMER_BASE (PA_IO_REGS_BASE + 0xe2000)
|
||||||
#define PA_VIC_BASE (PA_IO_REGS_BASE + 0x40000)
|
#define PA_VIC_BASE (PA_IO_REGS_BASE + 0x40000)
|
||||||
|
#define PA_I2C_BASE (PA_IO_REGS_BASE + 0x70000)
|
||||||
|
#define PA_I2C2_BASE (PA_IO_REGS_BASE + 0x74000)
|
||||||
|
#define PA_FPC_BASE (PA_IO_REGS_BASE + 0x72000)
|
||||||
|
#define PA_GPIO_BASE (PA_IO_REGS_BASE + 0x160000)
|
||||||
|
#define PA_SCI_BASE (PA_IO_REGS_BASE + 0xf0000)
|
||||||
|
#define PA_USB_EHCI_BASE (PA_IO_REGS_BASE + 0x100000)
|
||||||
|
#define PA_USB_OHCI_BASE (PA_IO_REGS_BASE + 0x110000)
|
||||||
#endif
|
#endif
|
||||||
@ -18,6 +18,7 @@ endif
|
|||||||
# hardware specific clock types
|
# hardware specific clock types
|
||||||
# please keep this section sorted lexicographically by file path name
|
# please keep this section sorted lexicographically by file path name
|
||||||
obj-$(CONFIG_MACH_ASM9260) += clk-asm9260.o
|
obj-$(CONFIG_MACH_ASM9260) += clk-asm9260.o
|
||||||
|
obj-$(CONFIG_MACH_CELESTIAL) += clk-cnc1800l.o
|
||||||
obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o
|
obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o
|
||||||
obj-$(CONFIG_ARCH_AXXIA) += clk-axm5516.o
|
obj-$(CONFIG_ARCH_AXXIA) += clk-axm5516.o
|
||||||
obj-$(CONFIG_COMMON_CLK_BD718XX) += clk-bd718x7.o
|
obj-$(CONFIG_COMMON_CLK_BD718XX) += clk-bd718x7.o
|
||||||
|
|||||||
134
drivers/clk/clk-cnc1800l.c
Normal file
134
drivers/clk/clk-cnc1800l.c
Normal file
@ -0,0 +1,134 @@
|
|||||||
|
/****************************************************************************
|
||||||
|
* Copyright (C) 2008-2010 Celestial Semiconductor Inc.
|
||||||
|
* All rights reserved
|
||||||
|
*
|
||||||
|
* [RELEASE HISTORY]
|
||||||
|
* VERSION DATE AUTHOR DESCRIPTION
|
||||||
|
* 0.1 10-03-10 Jia Ma Original
|
||||||
|
****************************************************************************
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <linux/clk.h>
|
||||||
|
#include <linux/clkdev.h>
|
||||||
|
#include <linux/err.h>
|
||||||
|
#include <linux/io.h>
|
||||||
|
#include <linux/clk-provider.h>
|
||||||
|
#include <linux/spinlock.h>
|
||||||
|
#include <linux/of.h>
|
||||||
|
#include <linux/of_address.h>
|
||||||
|
|
||||||
|
// #define CLOCK_ID_BASE (CLOCK_REG_BASE+(0<<2))
|
||||||
|
// #define CLOCK_PLL_BASE (CLOCK_REG_BASE+(0x40<<2))
|
||||||
|
// #define CLOCK_MUX_BASE (CLOCK_REG_BASE+(0x50<<2))
|
||||||
|
// #define CLOCK_RESET_BASE (CLOCK_REG_BASE+(0x80<<2))
|
||||||
|
|
||||||
|
// #define CLOCK_ID_LO (CLOCK_ID_BASE+(0<<2))
|
||||||
|
// #define CLOCK_ID_HI (CLOCK_ID_BASE+(1<<2))
|
||||||
|
|
||||||
|
// #define CLOCK_PLL_DDR_DIV (CLOCK_PLL_BASE+(0<<2))
|
||||||
|
// #define CLOCK_PLL_AVS_DIV (CLOCK_PLL_BASE+(1<<2))
|
||||||
|
// #define CLOCK_PLL_TVE_DIV (CLOCK_PLL_BASE+(2<<2))
|
||||||
|
// #define CLOCK_AUD_HPD (CLOCK_PLL_BASE+(3<<2))
|
||||||
|
// #define CLOCK_AUD_FREQ (CLOCK_PLL_BASE+(6<<2))
|
||||||
|
// #define CLOCK_AUD_JITTER (CLOCK_PLL_BASE+(7<<2))
|
||||||
|
// #define CLOCK_CLK_GEN_DIV (CLOCK_PLL_BASE+(8<<2))
|
||||||
|
|
||||||
|
// #define CLOCK_PLL_CLK_EN (CLOCK_MUX_BASE+(0<<2))
|
||||||
|
// #define CLOCK_TVE_SEL (CLOCK_MUX_BASE+(1<<2))
|
||||||
|
// #define CLOCK_TVE_DIV_N (CLOCK_MUX_BASE+(2<<2))
|
||||||
|
|
||||||
|
// #define CLOCK_SOFT_RESET (CLOCK_RESET_BASE+(0<<2))
|
||||||
|
// #define CLOCK_CLK_RESET (CLOCK_RESET_BASE+(1<<2))
|
||||||
|
|
||||||
|
// #define CLOCK_PLL_SLEEP_N (CLOCK_RESET_BASE+(3<<2))
|
||||||
|
// #define CLOCK_DAC_POWER_DOWN (CLOCK_RESET_BASE+(4<<2))
|
||||||
|
// #define CLOCK_XPORT_CLK_SEL (CLOCK_RESET_BASE+(5<<2))
|
||||||
|
// #define CLOCK_USB_ULPI_BYPASS (CLOCK_RESET_BASE+(6<<2))
|
||||||
|
// #define CLOCK_AUD_POWER_ON (CLOCK_RESET_BASE+(7<<2))
|
||||||
|
// #define CLOCK_LOW_POWER_CTL (CLOCK_PLL_BASE+(0x10<<2))
|
||||||
|
|
||||||
|
#define CLOCK_ID_BASE (0<<2)
|
||||||
|
#define CLOCK_PLL_BASE (0x40<<2)
|
||||||
|
#define CLOCK_MUX_BASE (0x50<<2)
|
||||||
|
#define CLOCK_RESET_BASE (0x80<<2)
|
||||||
|
|
||||||
|
#define CLOCK_ID_LO (CLOCK_ID_BASE+(0<<2))
|
||||||
|
#define CLOCK_ID_HI (CLOCK_ID_BASE+(1<<2))
|
||||||
|
|
||||||
|
#define CLOCK_PLL_DDR_DIV (CLOCK_PLL_BASE+(0<<2))
|
||||||
|
#define CLOCK_PLL_AVS_DIV (CLOCK_PLL_BASE+(1<<2))
|
||||||
|
#define CLOCK_PLL_TVE_DIV (CLOCK_PLL_BASE+(2<<2))
|
||||||
|
#define CLOCK_AUD_HPD (CLOCK_PLL_BASE+(3<<2))
|
||||||
|
#define CLOCK_AUD_FREQ (CLOCK_PLL_BASE+(6<<2))
|
||||||
|
#define CLOCK_AUD_JITTER (CLOCK_PLL_BASE+(7<<2))
|
||||||
|
#define CLOCK_CLK_GEN_DIV (CLOCK_PLL_BASE+(8<<2))
|
||||||
|
|
||||||
|
#define CLOCK_PLL_CLK_EN (CLOCK_MUX_BASE+(0<<2))
|
||||||
|
#define CLOCK_TVE_SEL (CLOCK_MUX_BASE+(1<<2))
|
||||||
|
#define CLOCK_TVE_DIV_N (CLOCK_MUX_BASE+(2<<2))
|
||||||
|
|
||||||
|
#define CLOCK_SOFT_RESET (CLOCK_RESET_BASE+(0<<2))
|
||||||
|
#define CLOCK_CLK_RESET (CLOCK_RESET_BASE+(1<<2))
|
||||||
|
|
||||||
|
#define CLOCK_PLL_SLEEP_N (CLOCK_RESET_BASE+(3<<2))
|
||||||
|
#define CLOCK_DAC_POWER_DOWN (CLOCK_RESET_BASE+(4<<2))
|
||||||
|
#define CLOCK_XPORT_CLK_SEL (CLOCK_RESET_BASE+(5<<2))
|
||||||
|
#define CLOCK_USB_ULPI_BYPASS (CLOCK_RESET_BASE+(6<<2))
|
||||||
|
#define CLOCK_AUD_POWER_ON (CLOCK_RESET_BASE+(7<<2))
|
||||||
|
#define CLOCK_LOW_POWER_CTL (CLOCK_PLL_BASE+(0x10<<2))
|
||||||
|
|
||||||
|
static void __iomem *cnc1800l_clockctrl_base;
|
||||||
|
|
||||||
|
#define cnc_clk_read(a) readl(cnc1800l_clockctrl_base+((a)&0xfff))
|
||||||
|
#define cnc_clk_write(a,v) writel(v,cnc1800l_clockctrl_base+((a)&0xfff))
|
||||||
|
|
||||||
|
|
||||||
|
//mode 0:reset
|
||||||
|
// 1:set
|
||||||
|
void cnc1800l_clock_usb_reset(int mode){
|
||||||
|
unsigned int val;
|
||||||
|
if(mode == 0){
|
||||||
|
val = cnc_clk_read(CLOCK_SOFT_RESET);
|
||||||
|
cnc_clk_write(CLOCK_SOFT_RESET, val&(~(0x1<<4)));
|
||||||
|
}else{
|
||||||
|
val = cnc_clk_read(CLOCK_SOFT_RESET);
|
||||||
|
cnc_clk_write(CLOCK_SOFT_RESET, val|(0x1<<4));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void cnc1800l_clock_usb1phy_bypassenable(void)
|
||||||
|
{
|
||||||
|
unsigned int val;
|
||||||
|
val = cnc_clk_read(CLOCK_USB_ULPI_BYPASS);
|
||||||
|
cnc_clk_write(CLOCK_USB_ULPI_BYPASS, val|0x3);
|
||||||
|
}
|
||||||
|
|
||||||
|
void cnc1800l_clock_usb1phy_bypassdisable(void)
|
||||||
|
{
|
||||||
|
unsigned int reg_val;
|
||||||
|
reg_val = cnc_clk_read(CLOCK_USB_ULPI_BYPASS);
|
||||||
|
cnc_clk_write(CLOCK_USB_ULPI_BYPASS, reg_val|0x1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void __init cnc1800l_clock_init(struct device_node *np)
|
||||||
|
{
|
||||||
|
cnc1800l_clockctrl_base = of_io_request_and_map(np, 0, np->name);
|
||||||
|
if (IS_ERR(cnc1800l_clockctrl_base)){
|
||||||
|
panic("%pOFn: unable to map resource", np);
|
||||||
|
goto fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
printk("cnc1800l clockctrl init");
|
||||||
|
|
||||||
|
return;
|
||||||
|
fail:
|
||||||
|
iounmap(cnc1800l_clockctrl_base);
|
||||||
|
}
|
||||||
|
|
||||||
|
EXPORT_SYMBOL(cnc1800l_clock_usb_reset);
|
||||||
|
EXPORT_SYMBOL(cnc1800l_clock_usb1phy_bypassenable);
|
||||||
|
EXPORT_SYMBOL(cnc1800l_clock_usb1phy_bypassdisable);
|
||||||
|
|
||||||
|
|
||||||
|
CLK_OF_DECLARE(cnc1800l_clock, "cavium,cnc1800l-clockctrl",
|
||||||
|
cnc1800l_clock_init);
|
||||||
@ -257,6 +257,14 @@ config USB_EHCI_HCD_AT91
|
|||||||
Enables support for the on-chip EHCI controller on
|
Enables support for the on-chip EHCI controller on
|
||||||
Atmel chips.
|
Atmel chips.
|
||||||
|
|
||||||
|
config USB_EHCI_HCD_CNC1800L
|
||||||
|
tristate "Support for Celestial on-chip EHCI USB controller"
|
||||||
|
depends on USB_EHCI_HCD && (MACH_CELESTIAL || COMPILE_TEST)
|
||||||
|
default y if MACH_CELESTIAL
|
||||||
|
help
|
||||||
|
Enables support for the on-chip EHCI controller on
|
||||||
|
Celestial chips.
|
||||||
|
|
||||||
config USB_EHCI_TEGRA
|
config USB_EHCI_TEGRA
|
||||||
tristate "NVIDIA Tegra HCD support"
|
tristate "NVIDIA Tegra HCD support"
|
||||||
depends on ARCH_TEGRA
|
depends on ARCH_TEGRA
|
||||||
@ -477,6 +485,14 @@ config USB_OHCI_HCD_AT91
|
|||||||
Enables support for the on-chip OHCI controller on
|
Enables support for the on-chip OHCI controller on
|
||||||
Atmel chips.
|
Atmel chips.
|
||||||
|
|
||||||
|
config USB_OHCI_HCD_CNC1800L
|
||||||
|
tristate "Support for Celestial on-chip OHCI USB controller"
|
||||||
|
depends on USB_OHCI_HCD && (MACH_CELESTIAL || COMPILE_TEST) && OF
|
||||||
|
default y if MACH_CELESTIAL
|
||||||
|
help
|
||||||
|
Enables support for the on-chip OHCI controller on
|
||||||
|
Celestial chips.
|
||||||
|
|
||||||
config USB_OHCI_HCD_OMAP3
|
config USB_OHCI_HCD_OMAP3
|
||||||
tristate "OHCI support for OMAP3 and later chips"
|
tristate "OHCI support for OMAP3 and later chips"
|
||||||
depends on ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5 || COMPILE_TEST
|
depends on ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5 || COMPILE_TEST
|
||||||
|
|||||||
@ -45,6 +45,7 @@ obj-$(CONFIG_USB_EHCI_HCD_SPEAR) += ehci-spear.o
|
|||||||
obj-$(CONFIG_USB_EHCI_HCD_STI) += ehci-st.o
|
obj-$(CONFIG_USB_EHCI_HCD_STI) += ehci-st.o
|
||||||
obj-$(CONFIG_USB_EHCI_EXYNOS) += ehci-exynos.o
|
obj-$(CONFIG_USB_EHCI_EXYNOS) += ehci-exynos.o
|
||||||
obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
|
obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
|
||||||
|
obj-$(CONFIG_USB_EHCI_HCD_CNC1800L) += ehci-cnc1800l.o
|
||||||
obj-$(CONFIG_USB_EHCI_BRCMSTB) += ehci-brcm.o
|
obj-$(CONFIG_USB_EHCI_BRCMSTB) += ehci-brcm.o
|
||||||
|
|
||||||
obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o
|
obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o
|
||||||
@ -59,6 +60,7 @@ obj-$(CONFIG_USB_OHCI_HCD_OMAP1) += ohci-omap.o
|
|||||||
obj-$(CONFIG_USB_OHCI_HCD_SPEAR) += ohci-spear.o
|
obj-$(CONFIG_USB_OHCI_HCD_SPEAR) += ohci-spear.o
|
||||||
obj-$(CONFIG_USB_OHCI_HCD_STI) += ohci-st.o
|
obj-$(CONFIG_USB_OHCI_HCD_STI) += ohci-st.o
|
||||||
obj-$(CONFIG_USB_OHCI_HCD_AT91) += ohci-at91.o
|
obj-$(CONFIG_USB_OHCI_HCD_AT91) += ohci-at91.o
|
||||||
|
obj-$(CONFIG_USB_OHCI_HCD_CNC1800L) += ohci-cnc1800l.o
|
||||||
obj-$(CONFIG_USB_OHCI_HCD_S3C2410) += ohci-s3c2410.o
|
obj-$(CONFIG_USB_OHCI_HCD_S3C2410) += ohci-s3c2410.o
|
||||||
obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o
|
obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o
|
||||||
obj-$(CONFIG_USB_OHCI_HCD_PXA27X) += ohci-pxa27x.o
|
obj-$(CONFIG_USB_OHCI_HCD_PXA27X) += ohci-pxa27x.o
|
||||||
|
|||||||
219
drivers/usb/host/ehci-cnc1800l.c
Normal file
219
drivers/usb/host/ehci-cnc1800l.c
Normal file
@ -0,0 +1,219 @@
|
|||||||
|
/*
|
||||||
|
* linux/driver/usb/host/ehci-csm18xx.c
|
||||||
|
*
|
||||||
|
* Copyright (c) 2010 celestialsemi corporation.
|
||||||
|
*
|
||||||
|
* Ran Hao <ran.hao@celestialsemi.cn>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
/*
|
||||||
|
* ehci-omap.c - driver for USBHOST on OMAP3/4 processors
|
||||||
|
*
|
||||||
|
* Bus Glue for the EHCI controllers in OMAP3/4
|
||||||
|
* Tested on several OMAP3 boards, and OMAP4 Pandaboard
|
||||||
|
*
|
||||||
|
* Copyright (C) 2007-2013 Texas Instruments, Inc.
|
||||||
|
* Author: Vikram Pandita <vikram.pandita@ti.com>
|
||||||
|
* Author: Anand Gadiyar <gadiyar@ti.com>
|
||||||
|
* Author: Keshava Munegowda <keshava_mgowda@ti.com>
|
||||||
|
* Author: Roger Quadros <rogerq@ti.com>
|
||||||
|
*
|
||||||
|
* Copyright (C) 2009 Nokia Corporation
|
||||||
|
* Contact: Felipe Balbi <felipe.balbi@nokia.com>
|
||||||
|
*
|
||||||
|
* Based on "ehci-fsl.c" and "ehci-au1xxx.c" ehci glue layers
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <linux/kernel.h>
|
||||||
|
#include <linux/module.h>
|
||||||
|
#include <linux/io.h>
|
||||||
|
#include <linux/platform_device.h>
|
||||||
|
#include <linux/slab.h>
|
||||||
|
#include <linux/usb/ulpi.h>
|
||||||
|
#include <linux/usb/ehci_def.h>
|
||||||
|
#include <linux/pm_runtime.h>
|
||||||
|
#include <linux/clk.h>
|
||||||
|
#include <linux/usb.h>
|
||||||
|
#include <linux/usb/hcd.h>
|
||||||
|
#include <linux/of.h>
|
||||||
|
#include <linux/dma-mapping.h>
|
||||||
|
|
||||||
|
#include "ehci.h"
|
||||||
|
|
||||||
|
#define DRIVER_DESC "EHCI CNC1800L driver"
|
||||||
|
|
||||||
|
extern void cnc1800l_clock_usb_reset(int mode);
|
||||||
|
extern void cnc1800l_clock_usb1phy_bypassenable(void);
|
||||||
|
extern void cnc1800l_clock_usb1phy_bypassdisable(void);
|
||||||
|
|
||||||
|
static const char hcd_name[] = "ehci-cnc1800l";
|
||||||
|
|
||||||
|
static struct hc_driver __read_mostly ehci_cnc1800l_hc_driver;
|
||||||
|
|
||||||
|
static int usb_hcd_cnc18xx_make_hc(struct usb_hcd *hcd)
|
||||||
|
{
|
||||||
|
u32 *reg, val;
|
||||||
|
|
||||||
|
reg = (u32 *)((char *)(hcd->regs) + 0x10);
|
||||||
|
val = readl(reg);
|
||||||
|
|
||||||
|
if ((val & 3) != 3 && (val & 3) != 0) {
|
||||||
|
printk("usb_hcd_cnc18xx_make_hc(): unsane hardware state\n");
|
||||||
|
return -EIO;
|
||||||
|
}
|
||||||
|
|
||||||
|
val |= 3;
|
||||||
|
*reg = val;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void cnc18xx_start_ehc(struct platform_device *dev)
|
||||||
|
{
|
||||||
|
/* Reset USB core */
|
||||||
|
cnc1800l_clock_usb_reset(0);
|
||||||
|
udelay(100);
|
||||||
|
cnc1800l_clock_usb_reset(1);
|
||||||
|
cnc1800l_clock_usb1phy_bypassenable();
|
||||||
|
}
|
||||||
|
|
||||||
|
static void cnc18xx_stop_ehc(struct platform_device *dev)
|
||||||
|
{
|
||||||
|
cnc1800l_clock_usb1phy_bypassdisable();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static int ehci_hcd_cnc1800l_probe(struct platform_device *pdev)
|
||||||
|
{
|
||||||
|
struct device *dev = &pdev->dev;
|
||||||
|
struct resource *res;
|
||||||
|
struct usb_hcd *hcd;
|
||||||
|
int ret;
|
||||||
|
int irq;
|
||||||
|
struct ehci_hcd *ehci;
|
||||||
|
|
||||||
|
irq = platform_get_irq(pdev, 0);
|
||||||
|
if (irq < 0)
|
||||||
|
return irq;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Right now device-tree probed devices don't get dma_mask set.
|
||||||
|
* Since shared usb code relies on it, set it here for now.
|
||||||
|
* Once we have dma capability bindings this can go away.
|
||||||
|
*/
|
||||||
|
ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
|
||||||
|
if (ret)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
ret = -ENODEV;
|
||||||
|
hcd = usb_create_hcd(&ehci_cnc1800l_hc_driver, dev,
|
||||||
|
dev_name(dev));
|
||||||
|
if (!hcd) {
|
||||||
|
dev_err(dev, "Failed to create HCD\n");
|
||||||
|
return -ENOMEM;
|
||||||
|
}
|
||||||
|
|
||||||
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||||
|
hcd->regs = devm_ioremap_resource(dev, res);
|
||||||
|
if (IS_ERR(hcd->regs))
|
||||||
|
return PTR_ERR(hcd->regs);
|
||||||
|
|
||||||
|
hcd->rsrc_start = res->start;
|
||||||
|
hcd->rsrc_len = resource_size(res);
|
||||||
|
|
||||||
|
platform_set_drvdata(pdev, hcd);
|
||||||
|
|
||||||
|
cnc18xx_start_ehc(pdev);
|
||||||
|
|
||||||
|
ret = usb_hcd_cnc18xx_make_hc(hcd);
|
||||||
|
if(ret)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
ehci = hcd_to_ehci(hcd);
|
||||||
|
ehci->caps = hcd->regs;
|
||||||
|
ehci->regs = hcd->regs + HC_LENGTH(ehci, readl(&ehci->caps->hc_capbase));
|
||||||
|
|
||||||
|
ehci->hcs_params = readl(&ehci->caps->hcs_params);
|
||||||
|
|
||||||
|
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(dev, "failed to add hcd with err %d\n", ret);
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
device_wakeup_enable(hcd->self.controller);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
err:
|
||||||
|
cnc18xx_stop_ehc(pdev);
|
||||||
|
usb_put_hcd(hcd);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int ehci_hcd_cnc1800l_remove(struct platform_device *pdev)
|
||||||
|
{
|
||||||
|
struct device *dev = &pdev->dev;
|
||||||
|
struct usb_hcd *hcd = dev_get_drvdata(dev);
|
||||||
|
|
||||||
|
usb_remove_hcd(hcd);
|
||||||
|
cnc18xx_stop_ehc(pdev);
|
||||||
|
|
||||||
|
usb_put_hcd(hcd);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
usb_hcd_cnc18xx_shutdown(struct platform_device* dev)
|
||||||
|
{
|
||||||
|
struct usb_hcd *hcd = platform_get_drvdata(dev);
|
||||||
|
|
||||||
|
if (hcd->driver->shutdown)
|
||||||
|
hcd->driver->shutdown(hcd);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static const struct of_device_id cnc1800l_ehci_dt_ids[] = {
|
||||||
|
{ .compatible = "cavium,cnc1800l-ehci" },
|
||||||
|
{ }
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct platform_driver ehci_hcd_cnc1800l_driver = {
|
||||||
|
.probe = ehci_hcd_cnc1800l_probe,
|
||||||
|
.remove = ehci_hcd_cnc1800l_remove,
|
||||||
|
.shutdown = usb_hcd_cnc18xx_shutdown,
|
||||||
|
.driver = {
|
||||||
|
.name = hcd_name,
|
||||||
|
.of_match_table = cnc1800l_ehci_dt_ids,
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
MODULE_DEVICE_TABLE(of, cnc1800l_ehci_dt_ids);
|
||||||
|
|
||||||
|
static int __init ehci_cnc1800l_init(void)
|
||||||
|
{
|
||||||
|
if (usb_disabled())
|
||||||
|
return -ENODEV;
|
||||||
|
|
||||||
|
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
|
||||||
|
|
||||||
|
ehci_init_driver(&ehci_cnc1800l_hc_driver, NULL);
|
||||||
|
return platform_driver_register(&ehci_hcd_cnc1800l_driver);
|
||||||
|
}
|
||||||
|
module_init(ehci_cnc1800l_init);
|
||||||
|
|
||||||
|
static void __exit ehci_cnc1800l_cleanup(void)
|
||||||
|
{
|
||||||
|
platform_driver_unregister(&ehci_hcd_cnc1800l_driver);
|
||||||
|
}
|
||||||
|
module_exit(ehci_cnc1800l_cleanup);
|
||||||
|
|
||||||
|
|
||||||
|
MODULE_ALIAS("platform:cnc1800l-ehci");
|
||||||
|
|
||||||
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
||||||
|
MODULE_LICENSE("GPL");
|
||||||
|
MODULE_SOFTDEP("post: clk-cnc1800l");
|
||||||
175
drivers/usb/host/ohci-cnc1800l.c
Normal file
175
drivers/usb/host/ohci-cnc1800l.c
Normal file
@ -0,0 +1,175 @@
|
|||||||
|
/*
|
||||||
|
* OHCI HCD (Host Controller Driver) for USB.
|
||||||
|
*
|
||||||
|
* (C) Copyright 2010 celestialsemi Company
|
||||||
|
*
|
||||||
|
* Bus Glue for CNC1800H
|
||||||
|
*
|
||||||
|
* Written by Ran Hao <ran.hao@celestialsemi.cn>
|
||||||
|
*
|
||||||
|
*
|
||||||
|
* This file is licenced under the GPL.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* OHCI HCD (Host Controller Driver) for USB.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2004 SAN People (Pty) Ltd.
|
||||||
|
* Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
|
||||||
|
*
|
||||||
|
* AT91 Bus Glue
|
||||||
|
*
|
||||||
|
* Based on fragments of 2.4 driver by Rick Bronson.
|
||||||
|
* Based on ohci-omap.c
|
||||||
|
*
|
||||||
|
* This file is licenced under the GPL.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <linux/clk.h>
|
||||||
|
#include <linux/io.h>
|
||||||
|
#include <linux/of_platform.h>
|
||||||
|
#include <linux/dma-mapping.h>
|
||||||
|
#include <linux/kernel.h>
|
||||||
|
#include <linux/module.h>
|
||||||
|
#include <linux/platform_device.h>
|
||||||
|
#include <linux/regmap.h>
|
||||||
|
#include <linux/usb.h>
|
||||||
|
#include <linux/usb/hcd.h>
|
||||||
|
#include <linux/of_irq.h>
|
||||||
|
|
||||||
|
#include "ohci.h"
|
||||||
|
|
||||||
|
#define DRIVER_DESC "OHCI CNC1800L driver"
|
||||||
|
|
||||||
|
static const char hcd_name[] = "ohci-cnc1800l";
|
||||||
|
|
||||||
|
static struct hc_driver __read_mostly ohci_cnc1800l_hc_driver;
|
||||||
|
|
||||||
|
#define hcd_to_ohci_cnc1800l_priv(h) \
|
||||||
|
((struct ohci_cnc1800l_priv *)hcd_to_ohci(h)->priv)
|
||||||
|
|
||||||
|
|
||||||
|
struct ohci_cnc1800l_priv {
|
||||||
|
struct clk *iclk;
|
||||||
|
bool clocked;
|
||||||
|
bool wakeup; /* Saved wake-up state for resume */
|
||||||
|
struct regmap *sfr_regmap;
|
||||||
|
};
|
||||||
|
|
||||||
|
static void cnc1800l_start_hc(struct device *dev)
|
||||||
|
{
|
||||||
|
/*
|
||||||
|
* Set register pin to enable and 48MHz
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint8_t* clkreg = ioremap(0xB2100218,1);
|
||||||
|
|
||||||
|
// (*((volatile unsigned long *)(IO_ADDRESS(0xB2100218)))) =0x3;
|
||||||
|
if(clkreg != NULL)
|
||||||
|
*clkreg = 0x3;
|
||||||
|
else
|
||||||
|
dev_dbg(dev, "ohci: failed to enable 48m clock\n");
|
||||||
|
|
||||||
|
iounmap(clkreg);
|
||||||
|
udelay(100);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int ohci_hcd_cnc1800l_drv_probe(struct platform_device *pdev)
|
||||||
|
{
|
||||||
|
struct device_node *np = pdev->dev.of_node;
|
||||||
|
int ret, irq;
|
||||||
|
struct usb_hcd *hcd;
|
||||||
|
struct device *dev = &pdev->dev;
|
||||||
|
struct ohci_cnc1800l_priv *ohci_cnc;
|
||||||
|
struct resource *res;
|
||||||
|
|
||||||
|
|
||||||
|
/* Right now device-tree probed devices don't get dma_mask set.
|
||||||
|
* Since shared usb code relies on it, set it here for now.
|
||||||
|
* Once we have dma capability bindings this can go away.
|
||||||
|
*/
|
||||||
|
ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
|
||||||
|
if (ret)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
irq = irq_of_parse_and_map(np, 0);
|
||||||
|
if (irq < 0) {
|
||||||
|
dev_dbg(dev, "hcd probe: missing irq resource\n");
|
||||||
|
return irq;
|
||||||
|
}
|
||||||
|
|
||||||
|
hcd = usb_create_hcd(&ohci_cnc1800l_hc_driver, dev, dev_name(dev));
|
||||||
|
if (!hcd)
|
||||||
|
return -ENOMEM;
|
||||||
|
ohci_cnc = hcd_to_ohci_cnc1800l_priv(hcd);
|
||||||
|
|
||||||
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||||
|
hcd->regs = devm_ioremap_resource(dev, res);
|
||||||
|
if (IS_ERR(hcd->regs)) {
|
||||||
|
ret = PTR_ERR(hcd->regs);
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
|
||||||
|
hcd->rsrc_start = res->start;
|
||||||
|
hcd->rsrc_len = resource_size(res);
|
||||||
|
|
||||||
|
cnc1800l_start_hc(dev);
|
||||||
|
|
||||||
|
ret = usb_add_hcd(hcd,irq, IRQF_SHARED);
|
||||||
|
if(ret){
|
||||||
|
dev_err(&pdev->dev, "Failed to add USB HCD\n");
|
||||||
|
goto err;
|
||||||
|
}
|
||||||
|
|
||||||
|
device_wakeup_enable(hcd->self.controller);
|
||||||
|
return 0;
|
||||||
|
err:
|
||||||
|
usb_put_hcd(hcd);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int ohci_hcd_cnc1800l_drv_remove(struct platform_device *pdev)
|
||||||
|
{
|
||||||
|
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
||||||
|
usb_remove_hcd(hcd);
|
||||||
|
usb_put_hcd(hcd);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct of_device_id ohci_hcd_cnc1800l_dt_ids[] = {
|
||||||
|
{ .compatible = "cavium,cnc1800l-ohci" },
|
||||||
|
{ }
|
||||||
|
};
|
||||||
|
|
||||||
|
MODULE_DEVICE_TABLE(of, ohci_hcd_cnc1800l_dt_ids);
|
||||||
|
|
||||||
|
static struct platform_driver ohci_hcd_cnc1800l_driver = {
|
||||||
|
.probe = ohci_hcd_cnc1800l_drv_probe,
|
||||||
|
.remove = ohci_hcd_cnc1800l_drv_remove,
|
||||||
|
.driver = {
|
||||||
|
.name = "cnc1800l-ohci",
|
||||||
|
.of_match_table = ohci_hcd_cnc1800l_dt_ids,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
static int __init ohci_cnc1800l_init(void)
|
||||||
|
{
|
||||||
|
if (usb_disabled())
|
||||||
|
return -ENODEV;
|
||||||
|
|
||||||
|
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
|
||||||
|
ohci_init_driver(&ohci_cnc1800l_hc_driver, NULL);
|
||||||
|
|
||||||
|
return platform_driver_register(&ohci_hcd_cnc1800l_driver);
|
||||||
|
}
|
||||||
|
module_init(ohci_cnc1800l_init);
|
||||||
|
|
||||||
|
static void __exit ohci_cnc1800l_cleanup(void)
|
||||||
|
{
|
||||||
|
platform_driver_unregister(&ohci_hcd_cnc1800l_driver);
|
||||||
|
}
|
||||||
|
module_exit(ohci_cnc1800l_cleanup);
|
||||||
|
|
||||||
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
||||||
|
MODULE_LICENSE("GPL");
|
||||||
|
MODULE_ALIAS("platform:cnc1800l-ohci");
|
||||||
Loading…
x
Reference in New Issue
Block a user