diff options
Diffstat (limited to 'arch/arm/mach-omap2/usb-fs.c')
| -rw-r--r-- | arch/arm/mach-omap2/usb-fs.c | 359 |
1 files changed, 0 insertions, 359 deletions
diff --git a/arch/arm/mach-omap2/usb-fs.c b/arch/arm/mach-omap2/usb-fs.c deleted file mode 100644 index 1481078763b8..000000000000 --- a/arch/arm/mach-omap2/usb-fs.c +++ /dev/null @@ -1,359 +0,0 @@ -/* - * Platform level USB initialization for FS USB OTG controller on omap1 and 24xx - * - * Copyright (C) 2004 Texas Instruments, Inc. - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/clk.h> -#include <linux/err.h> - -#include <asm/irq.h> - -#include <plat/usb.h> -#include <plat/board.h> - -#include "control.h" -#include "mux.h" - -#define INT_USB_IRQ_GEN INT_24XX_USB_IRQ_GEN -#define INT_USB_IRQ_NISO INT_24XX_USB_IRQ_NISO -#define INT_USB_IRQ_ISO INT_24XX_USB_IRQ_ISO -#define INT_USB_IRQ_HGEN INT_24XX_USB_IRQ_HGEN -#define INT_USB_IRQ_OTG INT_24XX_USB_IRQ_OTG - -#if defined(CONFIG_ARCH_OMAP2) - -#ifdef CONFIG_USB_GADGET_OMAP - -static struct resource udc_resources[] = { - /* order is significant! */ - { /* registers */ - .start = UDC_BASE, - .end = UDC_BASE + 0xff, - .flags = IORESOURCE_MEM, - }, { /* general IRQ */ - .start = INT_USB_IRQ_GEN, - .flags = IORESOURCE_IRQ, - }, { /* PIO IRQ */ - .start = INT_USB_IRQ_NISO, - .flags = IORESOURCE_IRQ, - }, { /* SOF IRQ */ - .start = INT_USB_IRQ_ISO, - .flags = IORESOURCE_IRQ, - }, -}; - -static u64 udc_dmamask = ~(u32)0; - -static struct platform_device udc_device = { - .name = "omap_udc", - .id = -1, - .dev = { - .dma_mask = &udc_dmamask, - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(udc_resources), - .resource = udc_resources, -}; - -static inline void udc_device_init(struct omap_usb_config *pdata) -{ - pdata->udc_device = &udc_device; -} - -#else - -static inline void udc_device_init(struct omap_usb_config *pdata) -{ -} - -#endif - -#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) - -/* The dmamask must be set for OHCI to work */ -static u64 ohci_dmamask = ~(u32)0; - -static struct resource ohci_resources[] = { - { - .start = OMAP_OHCI_BASE, - .end = OMAP_OHCI_BASE + 0xff, - .flags = IORESOURCE_MEM, - }, - { - .start = INT_USB_IRQ_HGEN, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device ohci_device = { - .name = "ohci", - .id = -1, - .dev = { - .dma_mask = &ohci_dmamask, - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(ohci_resources), - .resource = ohci_resources, -}; - -static inline void ohci_device_init(struct omap_usb_config *pdata) -{ - pdata->ohci_device = &ohci_device; -} - -#else - -static inline void ohci_device_init(struct omap_usb_config *pdata) -{ -} - -#endif - -#if defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG) - -static struct resource otg_resources[] = { - /* order is significant! */ - { - .start = OTG_BASE, - .end = OTG_BASE + 0xff, - .flags = IORESOURCE_MEM, - }, { - .start = INT_USB_IRQ_OTG, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device otg_device = { - .name = "omap_otg", - .id = -1, - .num_resources = ARRAY_SIZE(otg_resources), - .resource = otg_resources, -}; - -static inline void otg_device_init(struct omap_usb_config *pdata) -{ - pdata->otg_device = &otg_device; -} - -#else - -static inline void otg_device_init(struct omap_usb_config *pdata) -{ -} - -#endif - -static void omap2_usb_devconf_clear(u8 port, u32 mask) -{ - u32 r; - - r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - r &= ~USBTXWRMODEI(port, mask); - omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); -} - -static void omap2_usb_devconf_set(u8 port, u32 mask) -{ - u32 r; - - r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - r |= USBTXWRMODEI(port, mask); - omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); -} - -static void omap2_usb2_disable_5pinbitll(void) -{ - u32 r; - - r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - r &= ~(USBTXWRMODEI(2, USB_BIDIR_TLL) | USBT2TLL5PI); - omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); -} - -static void omap2_usb2_enable_5pinunitll(void) -{ - u32 r; - - r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - r |= USBTXWRMODEI(2, USB_UNIDIR_TLL) | USBT2TLL5PI; - omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); -} - -static u32 __init omap2_usb0_init(unsigned nwires, unsigned is_device) -{ - u32 syscon1 = 0; - - omap2_usb_devconf_clear(0, USB_BIDIR_TLL); - - if (nwires == 0) - return 0; - - if (is_device) - omap_mux_init_signal("usb0_puen", 0); - - omap_mux_init_signal("usb0_dat", 0); - omap_mux_init_signal("usb0_txen", 0); - omap_mux_init_signal("usb0_se0", 0); - if (nwires != 3) - omap_mux_init_signal("usb0_rcv", 0); - - switch (nwires) { - case 3: - syscon1 = 2; - omap2_usb_devconf_set(0, USB_BIDIR); - break; - case 4: - syscon1 = 1; - omap2_usb_devconf_set(0, USB_BIDIR); - break; - case 6: - syscon1 = 3; - omap_mux_init_signal("usb0_vp", 0); - omap_mux_init_signal("usb0_vm", 0); - omap2_usb_devconf_set(0, USB_UNIDIR); - break; - default: - printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", - 0, nwires); - } - - return syscon1 << 16; -} - -static u32 __init omap2_usb1_init(unsigned nwires) -{ - u32 syscon1 = 0; - - omap2_usb_devconf_clear(1, USB_BIDIR_TLL); - - if (nwires == 0) - return 0; - - /* NOTE: board-specific code must set up pin muxing for usb1, - * since each signal could come out on either of two balls. - */ - - switch (nwires) { - case 2: - /* NOTE: board-specific code must override this setting if - * this TLL link is not using DP/DM - */ - syscon1 = 1; - omap2_usb_devconf_set(1, USB_BIDIR_TLL); - break; - case 3: - syscon1 = 2; - omap2_usb_devconf_set(1, USB_BIDIR); - break; - case 4: - syscon1 = 1; - omap2_usb_devconf_set(1, USB_BIDIR); - break; - case 6: - default: - printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", - 1, nwires); - } - - return syscon1 << 20; -} - -static u32 __init omap2_usb2_init(unsigned nwires, unsigned alt_pingroup) -{ - u32 syscon1 = 0; - - omap2_usb2_disable_5pinbitll(); - alt_pingroup = 0; - - /* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */ - if (alt_pingroup || nwires == 0) - return 0; - - omap_mux_init_signal("usb2_dat", 0); - omap_mux_init_signal("usb2_se0", 0); - if (nwires > 2) - omap_mux_init_signal("usb2_txen", 0); - if (nwires > 3) - omap_mux_init_signal("usb2_rcv", 0); - - switch (nwires) { - case 2: - /* NOTE: board-specific code must override this setting if - * this TLL link is not using DP/DM - */ - syscon1 = 1; - omap2_usb_devconf_set(2, USB_BIDIR_TLL); - break; - case 3: - syscon1 = 2; - omap2_usb_devconf_set(2, USB_BIDIR); - break; - case 4: - syscon1 = 1; - omap2_usb_devconf_set(2, USB_BIDIR); - break; - case 5: - /* NOTE: board-specific code must mux this setting depending - * on TLL link using DP/DM. Something must also - * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED} - * 2420: hdq_sio.usb2_tllse0 or vlynq_rx0.usb2_tllse0 - * 2430: hdq_sio.usb2_tllse0 or sdmmc2_dat0.usb2_tllse0 - */ - - syscon1 = 3; - omap2_usb2_enable_5pinunitll(); - break; - case 6: - default: - printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", - 2, nwires); - } - - return syscon1 << 24; -} - -void __init omap2_usbfs_init(struct omap_usb_config *pdata) -{ - struct clk *ick; - - if (!cpu_is_omap24xx()) - return; - - ick = clk_get(NULL, "usb_l4_ick"); - if (IS_ERR(ick)) - return; - - clk_enable(ick); - pdata->usb0_init = omap2_usb0_init; - pdata->usb1_init = omap2_usb1_init; - pdata->usb2_init = omap2_usb2_init; - udc_device_init(pdata); - ohci_device_init(pdata); - otg_device_init(pdata); - omap_otg_init(pdata); - clk_disable(ick); - clk_put(ick); -} - -#endif |