hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ARM: EXYNOS: Add USB OHCI device 

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Jingoo Han 2011-12-23 11:19:36 +09:00 committed by Kukjin Kim
parent 384703b8e6
commit 6e7eb170fd
7 changed files with 96 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm/mach-exynos/Kconfig
View File

@ -82,6 +82,11 @@ config EXYNOS4_DEV_DWMCI
help
Compile in platform device definitions for DWMCI
config EXYNOS4_DEV_USB_OHCI
bool
help
Compile in platform device definition for USB OHCI
config EXYNOS4_SETUP_I2C1
bool
help

1
arch/arm/mach-exynos/Makefile
View File

@ -44,6 +44,7 @@ obj-$(CONFIG_EXYNOS4_DEV_AHCI) += dev-ahci.o
obj-$(CONFIG_EXYNOS4_DEV_PD) += dev-pd.o
obj-$(CONFIG_EXYNOS4_DEV_SYSMMU) += dev-sysmmu.o
obj-$(CONFIG_EXYNOS4_DEV_DWMCI) += dev-dwmci.o
obj-$(CONFIG_EXYNOS4_DEV_USB_OHCI) += dev-ohci.o
obj-$(CONFIG_EXYNOS4_SETUP_FIMC) += setup-fimc.o
obj-$(CONFIG_EXYNOS4_SETUP_FIMD0) += setup-fimd0.o

52
arch/arm/mach-exynos/dev-ohci.c Normal file
View File

@ -0,0 +1,52 @@
/* linux/arch/arm/mach-exynos/dev-ohci.c
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* EXYNOS - OHCI support
*
* This program 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/dma-mapping.h>
#include <linux/platform_device.h>
#include <mach/irqs.h>
#include <mach/map.h>
#include <mach/ohci.h>
#include <plat/devs.h>
#include <plat/usb-phy.h>
static struct resource exynos4_ohci_resource[] = {
[0] = DEFINE_RES_MEM(EXYNOS4_PA_OHCI, SZ_256),
[1] = DEFINE_RES_IRQ(IRQ_USB_HOST),
};
static u64 exynos4_ohci_dma_mask = DMA_BIT_MASK(32);
struct platform_device exynos4_device_ohci = {
.name = "exynos-ohci",
.id = -1,
.num_resources = ARRAY_SIZE(exynos4_ohci_resource),
.resource = exynos4_ohci_resource,
.dev = {
.dma_mask = &exynos4_ohci_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
}
};
void __init exynos4_ohci_set_platdata(struct exynos4_ohci_platdata *pd)
{
struct exynos4_ohci_platdata *npd;
npd = s3c_set_platdata(pd, sizeof(struct exynos4_ohci_platdata),
&exynos4_device_ohci);
if (!npd->phy_init)
npd->phy_init = s5p_usb_phy_init;
if (!npd->phy_exit)
npd->phy_exit = s5p_usb_phy_exit;
}

1
arch/arm/mach-exynos/include/mach/map.h
View File

@ -107,6 +107,7 @@
#define EXYNOS4_PA_SROMC 0x12570000
#define EXYNOS4_PA_EHCI 0x12580000
#define EXYNOS4_PA_OHCI 0x12590000
#define EXYNOS4_PA_HSPHY 0x125B0000
#define EXYNOS4_PA_MFC 0x13400000

21
arch/arm/mach-exynos/include/mach/ohci.h Normal file
View File

@ -0,0 +1,21 @@
/*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* http://www.samsung.com/
*
* 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; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __MACH_EXYNOS_OHCI_H
#define __MACH_EXYNOS_OHCI_H
struct exynos4_ohci_platdata {
int (*phy_init)(struct platform_device *pdev, int type);
int (*phy_exit)(struct platform_device *pdev, int type);
};
extern void exynos4_ohci_set_platdata(struct exynos4_ohci_platdata *pd);
#endif /* __MACH_EXYNOS_OHCI_H */

15
arch/arm/mach-exynos/setup-usb-phy.c
View File

@ -19,6 +19,13 @@
#include <plat/cpu.h>
#include <plat/usb-phy.h>
static atomic_t host_usage;
static int exynos4_usb_host_phy_is_on(void)
{
return (readl(EXYNOS4_PHYPWR) & PHY1_STD_ANALOG_POWERDOWN) ? 0 : 1;
}
static int exynos4_usb_phy1_init(struct platform_device *pdev)
{
struct clk *otg_clk;
@ -27,6 +34,8 @@ static int exynos4_usb_phy1_init(struct platform_device *pdev)
u32 rstcon;
int err;
atomic_inc(&host_usage);
otg_clk = clk_get(&pdev->dev, "otg");
if (IS_ERR(otg_clk)) {
dev_err(&pdev->dev, "Failed to get otg clock\n");
@ -39,6 +48,9 @@ static int exynos4_usb_phy1_init(struct platform_device *pdev)
return err;
}
if (exynos4_usb_host_phy_is_on())
return 0;
writel(readl(S5P_USBHOST_PHY_CONTROL) | S5P_USBHOST_PHY_ENABLE,
S5P_USBHOST_PHY_CONTROL);
@ -95,6 +107,9 @@ static int exynos4_usb_phy1_exit(struct platform_device *pdev)
struct clk *otg_clk;
int err;
if (atomic_dec_return(&host_usage) > 0)
return 0;
otg_clk = clk_get(&pdev->dev, "otg");
if (IS_ERR(otg_clk)) {
dev_err(&pdev->dev, "Failed to get otg clock\n");

1
arch/arm/plat-samsung/include/plat/devs.h
View File

@ -129,6 +129,7 @@ extern struct platform_device exynos4_device_dwmci;
extern struct platform_device exynos4_device_i2s0;
extern struct platform_device exynos4_device_i2s1;
extern struct platform_device exynos4_device_i2s2;
extern struct platform_device exynos4_device_ohci;
extern struct platform_device exynos4_device_pcm0;
extern struct platform_device exynos4_device_pcm1;
extern struct platform_device exynos4_device_pcm2;