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Merge branch 'master' of git://git.infradead.org/users/cbou/linux-cns3xxx into devel-stable

This commit is contained in:
Russell King 2011-01-03 10:31:38 +00:00
parent 206323c181 760efe6910
commit 50401d77ee
12 changed files with 464 additions and 4 deletions
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54
arch/arm/mach-cns3xxx/cns3420vb.c
View File

@ -17,6 +17,7 @@
#include <linux/kernel.h>
#include <linux/compiler.h>
#include <linux/io.h>
#include <linux/dma-mapping.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/platform_device.h>
@ -107,11 +108,64 @@ static void __init cns3420_early_serial_setup(void)
#endif
}
/*
* USB
*/
static struct resource cns3xxx_usb_ehci_resources[] = {
[0] = {
.start = CNS3XXX_USB_BASE,
.end = CNS3XXX_USB_BASE + SZ_16M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_CNS3XXX_USB_EHCI,
.flags = IORESOURCE_IRQ,
},
};
static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);
static struct platform_device cns3xxx_usb_ehci_device = {
.name = "cns3xxx-ehci",
.num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources),
.resource = cns3xxx_usb_ehci_resources,
.dev = {
.dma_mask = &cns3xxx_usb_ehci_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
static struct resource cns3xxx_usb_ohci_resources[] = {
[0] = {
.start = CNS3XXX_USB_OHCI_BASE,
.end = CNS3XXX_USB_OHCI_BASE + SZ_16M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_CNS3XXX_USB_OHCI,
.flags = IORESOURCE_IRQ,
},
};
static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32);
static struct platform_device cns3xxx_usb_ohci_device = {
.name = "cns3xxx-ohci",
.num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources),
.resource = cns3xxx_usb_ohci_resources,
.dev = {
.dma_mask = &cns3xxx_usb_ohci_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
/*
* Initialization
*/
static struct platform_device *cns3420_pdevs[] __initdata = {
&cns3420_nor_pdev,
&cns3xxx_usb_ehci_device,
&cns3xxx_usb_ohci_device,
};
static void __init cns3420_init(void)

2
arch/arm/mach-cns3xxx/core.h
View File

@ -17,7 +17,5 @@ extern struct sys_timer cns3xxx_timer;
void __init cns3xxx_map_io(void);
void __init cns3xxx_init_irq(void);
void cns3xxx_power_off(void);
void cns3xxx_pwr_power_up(unsigned int block);
void cns3xxx_pwr_power_down(unsigned int block);
#endif /* __CNS3XXX_CORE_H */

1
arch/arm/mach-cns3xxx/devices.c
View File

@ -18,6 +18,7 @@
#include <linux/platform_device.h>
#include <mach/cns3xxx.h>
#include <mach/irqs.h>
#include <mach/pm.h>
#include "core.h"
#include "devices.h"

2
arch/arm/mach-cns3xxx/include/mach/cns3xxx.h
View File

@ -165,7 +165,6 @@
#define CNS3XXX_USBOTG_BASE_VIRT 0xFFF15000
#define CNS3XXX_USB_BASE 0x82000000 /* USB Host Control */
#define CNS3XXX_USB_BASE_VIRT 0xFFF16000
#define CNS3XXX_SATA2_BASE 0x83000000 /* SATA */
#define CNS3XXX_SATA2_SIZE SZ_16M
@ -184,7 +183,6 @@
#define CNS3XXX_2DG_BASE_VIRT 0xFFF1B000
#define CNS3XXX_USB_OHCI_BASE 0x88000000 /* USB OHCI */
#define CNS3XXX_USB_OHCI_BASE_VIRT 0xFFF1C000
#define CNS3XXX_L2C_BASE 0x92000000 /* L2 Cache Control */
#define CNS3XXX_L2C_BASE_VIRT 0xFFF27000

23
arch/arm/mach-cns3xxx/include/mach/pm.h Normal file
View File

@ -0,0 +1,23 @@
/*
* Copyright 2000 Deep Blue Solutions Ltd
* Copyright 2004 ARM Limited
* Copyright 2008 Cavium Networks
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
* published by the Free Software Foundation.
*/
#ifndef __CNS3XXX_PM_H
#define __CNS3XXX_PM_H
#include <asm/atomic.h>
void cns3xxx_pwr_clk_en(unsigned int block);
void cns3xxx_pwr_clk_dis(unsigned int block);
void cns3xxx_pwr_power_up(unsigned int block);
void cns3xxx_pwr_power_down(unsigned int block);
extern atomic_t usb_pwr_ref;
#endif /* __CNS3XXX_PM_H */

23
arch/arm/mach-cns3xxx/pm.c
View File

@ -6,10 +6,14 @@
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <asm/atomic.h>
#include <mach/system.h>
#include <mach/cns3xxx.h>
#include <mach/pm.h>
void cns3xxx_pwr_clk_en(unsigned int block)
{
@ -18,6 +22,16 @@ void cns3xxx_pwr_clk_en(unsigned int block)
reg |= (block & PM_CLK_GATE_REG_MASK);
__raw_writel(reg, PM_CLK_GATE_REG);
}
EXPORT_SYMBOL(cns3xxx_pwr_clk_en);
void cns3xxx_pwr_clk_dis(unsigned int block)
{
u32 reg = __raw_readl(PM_CLK_GATE_REG);
reg &= ~(block & PM_CLK_GATE_REG_MASK);
__raw_writel(reg, PM_CLK_GATE_REG);
}
EXPORT_SYMBOL(cns3xxx_pwr_clk_dis);
void cns3xxx_pwr_power_up(unsigned int block)
{
@ -29,6 +43,7 @@ void cns3xxx_pwr_power_up(unsigned int block)
/* Wait for 300us for the PLL output clock locked. */
udelay(300);
};
EXPORT_SYMBOL(cns3xxx_pwr_power_up);
void cns3xxx_pwr_power_down(unsigned int block)
{
@ -38,6 +53,7 @@ void cns3xxx_pwr_power_down(unsigned int block)
reg |= (block & CNS3XXX_PWR_PLL_ALL);
__raw_writel(reg, PM_PLL_HM_PD_CTRL_REG);
};
EXPORT_SYMBOL(cns3xxx_pwr_power_down);
static void cns3xxx_pwr_soft_rst_force(unsigned int block)
{
@ -51,11 +67,13 @@ static void cns3xxx_pwr_soft_rst_force(unsigned int block)
reg &= ~(block & PM_SOFT_RST_REG_MASK);
} else {
reg &= ~(block & PM_SOFT_RST_REG_MASK);
__raw_writel(reg, PM_SOFT_RST_REG);
reg |= (block & PM_SOFT_RST_REG_MASK);
}
__raw_writel(reg, PM_SOFT_RST_REG);
}
EXPORT_SYMBOL(cns3xxx_pwr_soft_rst_force);
void cns3xxx_pwr_soft_rst(unsigned int block)
{
@ -69,6 +87,7 @@ void cns3xxx_pwr_soft_rst(unsigned int block)
}
cns3xxx_pwr_soft_rst_force(block);
}
EXPORT_SYMBOL(cns3xxx_pwr_soft_rst);
void arch_reset(char mode, const char *cmd)
{
@ -99,3 +118,7 @@ int cns3xxx_cpu_clock(void)
return cpu;
}
EXPORT_SYMBOL(cns3xxx_cpu_clock);
atomic_t usb_pwr_ref = ATOMIC_INIT(0);
EXPORT_SYMBOL(usb_pwr_ref);

2
drivers/usb/Kconfig
View File

@ -41,6 +41,7 @@ config USB_ARCH_HAS_OHCI
default y if MFD_TC6393XB
default y if ARCH_W90X900
default y if ARCH_DAVINCI_DA8XX
default y if ARCH_CNS3XXX
# PPC:
default y if STB03xxx
default y if PPC_MPC52xx
@ -66,6 +67,7 @@ config USB_ARCH_HAS_EHCI
default y if ARCH_AT91SAM9G45
default y if ARCH_MXC
default y if ARCH_OMAP3
default y if ARCH_CNS3XXX
default PCI
# ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.

15
drivers/usb/host/Kconfig
View File

@ -147,6 +147,14 @@ config USB_W90X900_EHCI
---help---
Enables support for the W90X900 USB controller
config USB_CNS3XXX_EHCI
bool "Cavium CNS3XXX EHCI Module"
depends on USB_EHCI_HCD && ARCH_CNS3XXX
---help---
Enable support for the CNS3XXX SOC's on-chip EHCI controller.
It is needed for high-speed (480Mbit/sec) USB 2.0 device
support.
config USB_OXU210HP_HCD
tristate "OXU210HP HCD support"
depends on USB
@ -286,6 +294,13 @@ config USB_OHCI_HCD_SSB
If unsure, say N.
config USB_CNS3XXX_OHCI
bool "Cavium CNS3XXX OHCI Module"
depends on USB_OHCI_HCD && ARCH_CNS3XXX
---help---
Enable support for the CNS3XXX SOC's on-chip OHCI controller.
It is needed for low-speed USB 1.0 device support.
config USB_OHCI_BIG_ENDIAN_DESC
bool
depends on USB_OHCI_HCD

171
drivers/usb/host/ehci-cns3xxx.c Normal file
View File

@ -0,0 +1,171 @@
/*
* Copyright 2008 Cavium Networks
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
* published by the Free Software Foundation.
*/
#include <linux/platform_device.h>
#include <linux/atomic.h>
#include <mach/cns3xxx.h>
#include <mach/pm.h>
static int cns3xxx_ehci_init(struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
int retval;
/*
* EHCI and OHCI share the same clock and power,
* resetting twice would cause the 1st controller been reset.
* Therefore only do power up at the first up device, and
* power down at the last down device.
*
* Set USB AHB INCR length to 16
*/
if (atomic_inc_return(&usb_pwr_ref) == 1) {
cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
__raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
MISC_CHIP_CONFIG_REG);
}
ehci->caps = hcd->regs;
ehci->regs = hcd->regs
+ HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
hcd->has_tt = 0;
ehci_reset(ehci);
retval = ehci_init(hcd);
if (retval)
return retval;
ehci_port_power(ehci, 0);
return retval;
}
static const struct hc_driver cns3xxx_ehci_hc_driver = {
.description = hcd_name,
.product_desc = "CNS3XXX EHCI Host Controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.reset = cns3xxx_ehci_init,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.endpoint_reset = ehci_endpoint_reset,
.get_frame_number = ehci_get_frame,
.hub_status_data = ehci_hub_status_data,
.hub_control = ehci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ehci_bus_suspend,
.bus_resume = ehci_bus_resume,
#endif
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
static int cns3xxx_ehci_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct usb_hcd *hcd;
const struct hc_driver *driver = &cns3xxx_ehci_hc_driver;
struct resource *res;
int irq;
int retval;
if (usb_disabled())
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_err(dev, "Found HC with no IRQ.\n");
return -ENODEV;
}
irq = res->start;
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "Found HC with no register addr.\n");
retval = -ENODEV;
goto err1;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = res->end - res->start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
dev_dbg(dev, "controller already in use\n");
retval = -EBUSY;
goto err1;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (hcd->regs == NULL) {
dev_dbg(dev, "error mapping memory\n");
retval = -EFAULT;
goto err2;
}
retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (retval == 0)
return retval;
iounmap(hcd->regs);
err2:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1:
usb_put_hcd(hcd);
return retval;
}
static int cns3xxx_ehci_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
/*
* EHCI and OHCI share the same clock and power,
* resetting twice would cause the 1st controller been reset.
* Therefore only do power up at the first up device, and
* power down at the last down device.
*/
if (atomic_dec_return(&usb_pwr_ref) == 0)
cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
usb_put_hcd(hcd);
platform_set_drvdata(pdev, NULL);
return 0;
}
MODULE_ALIAS("platform:cns3xxx-ehci");
static struct platform_driver cns3xxx_ehci_driver = {
.probe = cns3xxx_ehci_probe,
.remove = cns3xxx_ehci_remove,
.driver = {
.name = "cns3xxx-ehci",
},
};

5
drivers/usb/host/ehci-hcd.c
View File

@ -1216,6 +1216,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_octeon_driver
#endif
#ifdef CONFIG_USB_CNS3XXX_EHCI
#include "ehci-cns3xxx.c"
#define PLATFORM_DRIVER cns3xxx_ehci_driver
#endif
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
!defined(XILINX_OF_PLATFORM_DRIVER)

165
drivers/usb/host/ohci-cns3xxx.c Normal file
View File

@ -0,0 +1,165 @@
/*
* Copyright 2008 Cavium Networks
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
* published by the Free Software Foundation.
*/
#include <linux/platform_device.h>
#include <linux/atomic.h>
#include <mach/cns3xxx.h>
#include <mach/pm.h>
static int __devinit
cns3xxx_ohci_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
/*
* EHCI and OHCI share the same clock and power,
* resetting twice would cause the 1st controller been reset.
* Therefore only do power up at the first up device, and
* power down at the last down device.
*
* Set USB AHB INCR length to 16
*/
if (atomic_inc_return(&usb_pwr_ref) == 1) {
cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
__raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
MISC_CHIP_CONFIG_REG);
}
ret = ohci_init(ohci);
if (ret < 0)
return ret;
ohci->num_ports = 1;
ret = ohci_run(ohci);
if (ret < 0) {
err("can't start %s", hcd->self.bus_name);
ohci_stop(hcd);
return ret;
}
return 0;
}
static const struct hc_driver cns3xxx_ohci_hc_driver = {
.description = hcd_name,
.product_desc = "CNS3XXX OHCI Host controller",
.hcd_priv_size = sizeof(struct ohci_hcd),
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
.start = cns3xxx_ohci_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
.get_frame_number = ohci_get_frame,
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
static int cns3xxx_ohci_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct usb_hcd *hcd;
const struct hc_driver *driver = &cns3xxx_ohci_hc_driver;
struct resource *res;
int irq;
int retval;
if (usb_disabled())
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_err(dev, "Found HC with no IRQ.\n");
return -ENODEV;
}
irq = res->start;
hcd = usb_create_hcd(driver, dev, dev_name(dev));
if (!hcd)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "Found HC with no register addr.\n");
retval = -ENODEV;
goto err1;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = res->end - res->start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
dev_dbg(dev, "controller already in use\n");
retval = -EBUSY;
goto err1;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
dev_dbg(dev, "error mapping memory\n");
retval = -EFAULT;
goto err2;
}
ohci_hcd_init(hcd_to_ohci(hcd));
retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (retval == 0)
return retval;
iounmap(hcd->regs);
err2:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1:
usb_put_hcd(hcd);
return retval;
}
static int cns3xxx_ohci_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
/*
* EHCI and OHCI share the same clock and power,
* resetting twice would cause the 1st controller been reset.
* Therefore only do power up at the first up device, and
* power down at the last down device.
*/
if (atomic_dec_return(&usb_pwr_ref) == 0)
cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
usb_put_hcd(hcd);
platform_set_drvdata(pdev, NULL);
return 0;
}
MODULE_ALIAS("platform:cns3xxx-ohci");
static struct platform_driver ohci_hcd_cns3xxx_driver = {
.probe = cns3xxx_ohci_probe,
.remove = cns3xxx_ohci_remove,
.driver = {
.name = "cns3xxx-ohci",
},
};

5
drivers/usb/host/ohci-hcd.c
View File

@ -1111,6 +1111,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ohci_octeon_driver
#endif
#ifdef CONFIG_USB_CNS3XXX_OHCI
#include "ohci-cns3xxx.c"
#define PLATFORM_DRIVER ohci_hcd_cns3xxx_driver
#endif
#if !defined(PCI_DRIVER) && \
!defined(PLATFORM_DRIVER) && \
!defined(OMAP1_PLATFORM_DRIVER) && \