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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-11 18:22:55 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-11 18:22:55 -0500
commit748e566b7e24541e05e3e70be311887a1262f2a1 (patch)
tree41cc3a9aa04918cc17efa575baf6dbf87f40ddba /arch/arm/plat-mxc
parent5f1141eb352ea79d849920039503e40dd623fffa (diff)
parentacf509ae28301d78b022c534c26b1e4765c18f2b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (122 commits) USB: mos7840: add device IDs for B&B electronics devices USB: ftdi_sio: add USB device ID's for B&B Electronics line USB: musb: musb_host: fix sparse warning USB: musb: musb_gadget: fix sparse warning USB: musb: omap2430: fix sparse warning USB: core: message: fix sparse warning USB: core: hub: fix sparse warning USB: core: fix sparse warning for static function USB: Added USB_ETH_RNDIS to use instead of CONFIG_USB_ETH_RNDIS USB: Check bandwidth when switching alt settings. USB: Refactor code to find alternate interface settings. USB: xhci: Fix command completion after a drop endpoint. USB: xhci: Make reverting an alt setting "unfailable". USB: usbtmc: Use usb_clear_halt() instead of custom code. USB: xhci: Add correct email and files to MAINTAINERS entry. USB: ehci-omap.c: introduce missing kfree USB: xhci-mem.c: introduce missing kfree USB: add remove_id sysfs attr for usb drivers USB: g_multi kconfig: fix depends and help text USB: option: add pid for ZTE ...
Diffstat (limited to 'arch/arm/plat-mxc')
-rw-r--r--arch/arm/plat-mxc/Makefile1
-rw-r--r--arch/arm/plat-mxc/ehci.c92
-rw-r--r--arch/arm/plat-mxc/include/mach/mxc_ehci.h37
3 files changed, 130 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile
index 4cbca9da1505..996cbac6932c 100644
--- a/arch/arm/plat-mxc/Makefile
+++ b/arch/arm/plat-mxc/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_ARCH_MX1) += iomux-mx1-mx2.o dma-mx1-mx2.o
9obj-$(CONFIG_ARCH_MX2) += iomux-mx1-mx2.o dma-mx1-mx2.o 9obj-$(CONFIG_ARCH_MX2) += iomux-mx1-mx2.o dma-mx1-mx2.o
10obj-$(CONFIG_ARCH_MXC_IOMUX_V3) += iomux-v3.o 10obj-$(CONFIG_ARCH_MXC_IOMUX_V3) += iomux-v3.o
11obj-$(CONFIG_MXC_PWM) += pwm.o 11obj-$(CONFIG_MXC_PWM) += pwm.o
12obj-$(CONFIG_USB_EHCI_MXC) += ehci.o
12obj-$(CONFIG_MXC_ULPI) += ulpi.o 13obj-$(CONFIG_MXC_ULPI) += ulpi.o
13obj-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o 14obj-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o
14obj-$(CONFIG_ARCH_MXC_AUDMUX_V2) += audmux-v2.o 15obj-$(CONFIG_ARCH_MXC_AUDMUX_V2) += audmux-v2.o
diff --git a/arch/arm/plat-mxc/ehci.c b/arch/arm/plat-mxc/ehci.c
new file mode 100644
index 000000000000..41599be882e8
--- /dev/null
+++ b/arch/arm/plat-mxc/ehci.c
@@ -0,0 +1,92 @@
1/*
2 * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software Foundation,
16 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19#include <linux/platform_device.h>
20#include <linux/io.h>
21
22#include <mach/hardware.h>
23#include <mach/mxc_ehci.h>
24
25#define USBCTRL_OTGBASE_OFFSET 0x600
26
27#define MX31_OTG_SIC_SHIFT 29
28#define MX31_OTG_SIC_MASK (0xf << MX31_OTG_SIC_SHIFT)
29#define MX31_OTG_PM_BIT (1 << 24)
30
31#define MX31_H2_SIC_SHIFT 21
32#define MX31_H2_SIC_MASK (0xf << MX31_H2_SIC_SHIFT)
33#define MX31_H2_PM_BIT (1 << 16)
34#define MX31_H2_DT_BIT (1 << 5)
35
36#define MX31_H1_SIC_SHIFT 13
37#define MX31_H1_SIC_MASK (0xf << MX31_H1_SIC_SHIFT)
38#define MX31_H1_PM_BIT (1 << 8)
39#define MX31_H1_DT_BIT (1 << 4)
40
41int mxc_set_usbcontrol(int port, unsigned int flags)
42{
43 unsigned int v;
44
45 if (cpu_is_mx31()) {
46 v = readl(IO_ADDRESS(MX31_OTG_BASE_ADDR +
47 USBCTRL_OTGBASE_OFFSET));
48
49 switch (port) {
50 case 0: /* OTG port */
51 v &= ~(MX31_OTG_SIC_MASK | MX31_OTG_PM_BIT);
52 v |= (flags & MXC_EHCI_INTERFACE_MASK)
53 << MX31_OTG_SIC_SHIFT;
54 if (flags & MXC_EHCI_POWER_PINS_ENABLED)
55 v |= MX31_OTG_PM_BIT;
56
57 break;
58 case 1: /* H1 port */
59 v &= ~(MX31_H1_SIC_MASK | MX31_H1_PM_BIT);
60 v |= (flags & MXC_EHCI_INTERFACE_MASK)
61 << MX31_H1_SIC_SHIFT;
62 if (flags & MXC_EHCI_POWER_PINS_ENABLED)
63 v |= MX31_H1_PM_BIT;
64
65 if (!(flags & MXC_EHCI_TTL_ENABLED))
66 v |= MX31_H1_DT_BIT;
67
68 break;
69 case 2: /* H2 port */
70 v &= ~(MX31_H2_SIC_MASK | MX31_H2_PM_BIT);
71 v |= (flags & MXC_EHCI_INTERFACE_MASK)
72 << MX31_H2_SIC_SHIFT;
73 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
74 v |= MX31_H2_PM_BIT;
75
76 if (!(flags & MXC_EHCI_TTL_ENABLED))
77 v |= MX31_H2_DT_BIT;
78
79 break;
80 }
81
82 writel(v, IO_ADDRESS(MX31_OTG_BASE_ADDR +
83 USBCTRL_OTGBASE_OFFSET));
84 return 0;
85 }
86
87 printk(KERN_WARNING
88 "%s() unable to setup USBCONTROL for this CPU\n", __func__);
89 return -EINVAL;
90}
91EXPORT_SYMBOL(mxc_set_usbcontrol);
92
diff --git a/arch/arm/plat-mxc/include/mach/mxc_ehci.h b/arch/arm/plat-mxc/include/mach/mxc_ehci.h
new file mode 100644
index 000000000000..8f796239393e
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/mxc_ehci.h
@@ -0,0 +1,37 @@
1#ifndef __INCLUDE_ASM_ARCH_MXC_EHCI_H
2#define __INCLUDE_ASM_ARCH_MXC_EHCI_H
3
4/* values for portsc field */
5#define MXC_EHCI_PHY_LOW_POWER_SUSPEND (1 << 23)
6#define MXC_EHCI_FORCE_FS (1 << 24)
7#define MXC_EHCI_UTMI_8BIT (0 << 28)
8#define MXC_EHCI_UTMI_16BIT (1 << 28)
9#define MXC_EHCI_SERIAL (1 << 29)
10#define MXC_EHCI_MODE_UTMI (0 << 30)
11#define MXC_EHCI_MODE_PHILIPS (1 << 30)
12#define MXC_EHCI_MODE_ULPI (2 << 30)
13#define MXC_EHCI_MODE_SERIAL (3 << 30)
14
15/* values for flags field */
16#define MXC_EHCI_INTERFACE_DIFF_UNI (0 << 0)
17#define MXC_EHCI_INTERFACE_DIFF_BI (1 << 0)
18#define MXC_EHCI_INTERFACE_SINGLE_UNI (2 << 0)
19#define MXC_EHCI_INTERFACE_SINGLE_BI (3 << 0)
20#define MXC_EHCI_INTERFACE_MASK (0xf)
21
22#define MXC_EHCI_POWER_PINS_ENABLED (1 << 5)
23#define MXC_EHCI_TTL_ENABLED (1 << 6)
24
25struct mxc_usbh_platform_data {
26 int (*init)(struct platform_device *pdev);
27 int (*exit)(struct platform_device *pdev);
28
29 unsigned int portsc;
30 unsigned int flags;
31 struct otg_transceiver *otg;
32};
33
34int mxc_set_usbcontrol(int port, unsigned int flags);
35
36#endif /* __INCLUDE_ASM_ARCH_MXC_EHCI_H */
37