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authorTony Lindgren <tony@atomide.com>2005-07-10 19:58:13 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-07-10 19:58:13 +0100
commit60906a8a4e07eb179a2ed90dda23fa36972c6336 (patch)
tree42105cffbdb2d8ef3275d161cac514ecd0504d2b /arch/arm/mach-omap/usb.c
parentf577ffd75c02b6087d5bf5ca89f806b10f2a0246 (diff)
[PATCH] ARM: 2807/1: OMAP update 7a/11: Move arch-omap to plat-omap
Patch from Tony Lindgren This patch move common OMAP code from arch-omap to plat-omap directory. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-omap/usb.c')
-rw-r--r--arch/arm/mach-omap/usb.c593
1 files changed, 0 insertions, 593 deletions
diff --git a/arch/arm/mach-omap/usb.c b/arch/arm/mach-omap/usb.c
deleted file mode 100644
index fd483ff9f8fe..000000000000
--- a/arch/arm/mach-omap/usb.c
+++ /dev/null
@@ -1,593 +0,0 @@
-/*
- * arch/arm/mach-omap/usb.c -- platform level USB initialization
- *
- * 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
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/usb_otg.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/system.h>
-#include <asm/hardware.h>
-#include <asm/mach-types.h>
-
-#include <asm/arch/mux.h>
-#include <asm/arch/usb.h>
-#include <asm/arch/board.h>
-
-/* These routines should handle the standard chip-specific modes
- * for usb0/1/2 ports, covering basic mux and transceiver setup.
- *
- * Some board-*.c files will need to set up additional mux options,
- * like for suspend handling, vbus sensing, GPIOs, and the D+ pullup.
- */
-
-/* TESTED ON:
- * - 1611B H2 (with usb1 mini-AB) using standard Mini-B or OTG cables
- * - 5912 OSK OHCI (with usb0 standard-A), standard A-to-B cables
- * - 5912 OSK UDC, with *nonstandard* A-to-A cable
- * - 1510 Innovator UDC with bundled usb0 cable
- * - 1510 Innovator OHCI with bundled usb1/usb2 cable
- * - 1510 Innovator OHCI with custom usb0 cable, feeding 5V VBUS
- * - 1710 custom development board using alternate pin group
- * - 1710 H3 (with usb1 mini-AB) using standard Mini-B or OTG cables
- */
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef CONFIG_ARCH_OMAP_OTG
-
-static struct otg_transceiver *xceiv;
-
-/**
- * otg_get_transceiver - find the (single) OTG transceiver driver
- *
- * Returns the transceiver driver, after getting a refcount to it; or
- * null if there is no such transceiver. The caller is responsible for
- * releasing that count.
- */
-struct otg_transceiver *otg_get_transceiver(void)
-{
- if (xceiv)
- get_device(xceiv->dev);
- return xceiv;
-}
-EXPORT_SYMBOL(otg_get_transceiver);
-
-int otg_set_transceiver(struct otg_transceiver *x)
-{
- if (xceiv && x)
- return -EBUSY;
- xceiv = x;
- return 0;
-}
-EXPORT_SYMBOL(otg_set_transceiver);
-
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
-{
- u32 syscon1 = 0;
-
- if (nwires == 0) {
- if (!cpu_is_omap15xx()) {
- /* pulldown D+/D- */
- USB_TRANSCEIVER_CTRL_REG &= ~(3 << 1);
- }
- return 0;
- }
-
- if (is_device)
- omap_cfg_reg(W4_USB_PUEN);
-
- /* internal transceiver */
- if (nwires == 2) {
- // omap_cfg_reg(P9_USB_DP);
- // omap_cfg_reg(R8_USB_DM);
-
- if (cpu_is_omap15xx()) {
- /* This works on 1510-Innovator */
- return 0;
- }
-
- /* NOTES:
- * - peripheral should configure VBUS detection!
- * - only peripherals may use the internal D+/D- pulldowns
- * - OTG support on this port not yet written
- */
-
- USB_TRANSCEIVER_CTRL_REG &= ~(7 << 4);
- if (!is_device)
- USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
-
- return 3 << 16;
- }
-
- /* alternate pin config, external transceiver */
- if (cpu_is_omap15xx()) {
- printk(KERN_ERR "no usb0 alt pin config on 15xx\n");
- return 0;
- }
-
- omap_cfg_reg(V6_USB0_TXD);
- omap_cfg_reg(W9_USB0_TXEN);
- omap_cfg_reg(W5_USB0_SE0);
-
- /* NOTE: SPEED and SUSP aren't configured here */
-
- if (nwires != 3)
- omap_cfg_reg(Y5_USB0_RCV);
- if (nwires != 6)
- USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R;
-
- switch (nwires) {
- case 3:
- syscon1 = 2;
- break;
- case 4:
- syscon1 = 1;
- break;
- case 6:
- syscon1 = 3;
- omap_cfg_reg(AA9_USB0_VP);
- omap_cfg_reg(R9_USB0_VM);
- USB_TRANSCEIVER_CTRL_REG |= CONF_USB2_UNI_R;
- break;
- default:
- printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
- 0, nwires);
- }
- return syscon1 << 16;
-}
-
-static u32 __init omap_usb1_init(unsigned nwires)
-{
- u32 syscon1 = 0;
-
- if (nwires != 6 && !cpu_is_omap15xx())
- USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB1_UNI_R;
- if (nwires == 0)
- return 0;
-
- /* external transceiver */
- omap_cfg_reg(USB1_TXD);
- omap_cfg_reg(USB1_TXEN);
- if (cpu_is_omap15xx()) {
- omap_cfg_reg(USB1_SEO);
- omap_cfg_reg(USB1_SPEED);
- // SUSP
- } else if (cpu_is_omap1610() || cpu_is_omap5912()) {
- omap_cfg_reg(W13_1610_USB1_SE0);
- omap_cfg_reg(R13_1610_USB1_SPEED);
- // SUSP
- } else if (cpu_is_omap1710()) {
- omap_cfg_reg(R13_1710_USB1_SE0);
- // SUSP
- } else {
- pr_debug("usb unrecognized\n");
- }
- if (nwires != 3)
- omap_cfg_reg(USB1_RCV);
-
- switch (nwires) {
- case 3:
- syscon1 = 2;
- break;
- case 4:
- syscon1 = 1;
- break;
- case 6:
- syscon1 = 3;
- omap_cfg_reg(USB1_VP);
- omap_cfg_reg(USB1_VM);
- if (!cpu_is_omap15xx())
- USB_TRANSCEIVER_CTRL_REG |= CONF_USB1_UNI_R;
- break;
- default:
- printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
- 1, nwires);
- }
- return syscon1 << 20;
-}
-
-static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
-{
- u32 syscon1 = 0;
-
- /* NOTE erratum: must leave USB2_UNI_R set if usb0 in use */
- if (alt_pingroup || nwires == 0)
- return 0;
- if (nwires != 6 && !cpu_is_omap15xx())
- USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R;
-
- /* external transceiver */
- if (cpu_is_omap15xx()) {
- omap_cfg_reg(USB2_TXD);
- omap_cfg_reg(USB2_TXEN);
- omap_cfg_reg(USB2_SEO);
- if (nwires != 3)
- omap_cfg_reg(USB2_RCV);
- /* there is no USB2_SPEED */
- } else if (cpu_is_omap16xx()) {
- omap_cfg_reg(V6_USB2_TXD);
- omap_cfg_reg(W9_USB2_TXEN);
- omap_cfg_reg(W5_USB2_SE0);
- if (nwires != 3)
- omap_cfg_reg(Y5_USB2_RCV);
- // FIXME omap_cfg_reg(USB2_SPEED);
- } else {
- pr_debug("usb unrecognized\n");
- }
- // omap_cfg_reg(USB2_SUSP);
-
- switch (nwires) {
- case 3:
- syscon1 = 2;
- break;
- case 4:
- syscon1 = 1;
- break;
- case 6:
- syscon1 = 3;
- if (cpu_is_omap15xx()) {
- omap_cfg_reg(USB2_VP);
- omap_cfg_reg(USB2_VM);
- } else {
- omap_cfg_reg(AA9_USB2_VP);
- omap_cfg_reg(R9_USB2_VM);
- USB_TRANSCEIVER_CTRL_REG |= CONF_USB2_UNI_R;
- }
- break;
- default:
- printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
- 2, nwires);
- }
- return syscon1 << 24;
-}
-
-/*-------------------------------------------------------------------------*/
-
-#if defined(CONFIG_USB_GADGET_OMAP) || \
- defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) || \
- (defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG))
-static void usb_release(struct device *dev)
-{
- /* normally not freed */
-}
-#endif
-
-#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 = IH2_BASE + 20,
- .flags = IORESOURCE_IRQ,
- }, { /* PIO IRQ */
- .start = IH2_BASE + 30,
- .flags = IORESOURCE_IRQ,
- }, { /* SOF IRQ */
- .start = IH2_BASE + 29,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static u64 udc_dmamask = ~(u32)0;
-
-static struct platform_device udc_device = {
- .name = "omap_udc",
- .id = -1,
- .dev = {
- .release = usb_release,
- .dma_mask = &udc_dmamask,
- .coherent_dma_mask = 0xffffffff,
- },
- .num_resources = ARRAY_SIZE(udc_resources),
- .resource = udc_resources,
-};
-
-#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 + 4096,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = INT_USB_HHC_1,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device ohci_device = {
- .name = "ohci",
- .id = -1,
- .dev = {
- .release = usb_release,
- .dma_mask = &ohci_dmamask,
- .coherent_dma_mask = 0xffffffff,
- },
- .num_resources = ARRAY_SIZE(ohci_resources),
- .resource = ohci_resources,
-};
-
-#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 = IH2_BASE + 8,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device otg_device = {
- .name = "omap_otg",
- .id = -1,
- .dev = {
- .release = usb_release,
- },
- .num_resources = ARRAY_SIZE(otg_resources),
- .resource = otg_resources,
-};
-
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-#define ULPD_CLOCK_CTRL_REG __REG16(ULPD_CLOCK_CTRL)
-#define ULPD_SOFT_REQ_REG __REG16(ULPD_SOFT_REQ)
-
-
-// FIXME correct answer depends on hmc_mode,
-// as does any nonzero value for config->otg port number
-#ifdef CONFIG_USB_GADGET_OMAP
-#define is_usb0_device(config) 1
-#else
-#define is_usb0_device(config) 0
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef CONFIG_ARCH_OMAP_OTG
-
-void __init
-omap_otg_init(struct omap_usb_config *config)
-{
- u32 syscon = OTG_SYSCON_1_REG & 0xffff;
- int status;
- int alt_pingroup = 0;
-
- /* NOTE: no bus or clock setup (yet?) */
-
- syscon = OTG_SYSCON_1_REG & 0xffff;
- if (!(syscon & OTG_RESET_DONE))
- pr_debug("USB resets not complete?\n");
-
- // OTG_IRQ_EN_REG = 0;
-
- /* pin muxing and transceiver pinouts */
- if (config->pins[0] > 2) /* alt pingroup 2 */
- alt_pingroup = 1;
- syscon |= omap_usb0_init(config->pins[0], is_usb0_device(config));
- syscon |= omap_usb1_init(config->pins[1]);
- syscon |= omap_usb2_init(config->pins[2], alt_pingroup);
- pr_debug("OTG_SYSCON_1_REG = %08x\n", syscon);
- OTG_SYSCON_1_REG = syscon;
-
- syscon = config->hmc_mode;
- syscon |= USBX_SYNCHRO | (4 << 16) /* B_ASE0_BRST */;
-#ifdef CONFIG_USB_OTG
- if (config->otg)
- syscon |= OTG_EN;
-#endif
- pr_debug("USB_TRANSCEIVER_CTRL_REG = %03x\n", USB_TRANSCEIVER_CTRL_REG);
- pr_debug("OTG_SYSCON_2_REG = %08x\n", syscon);
- OTG_SYSCON_2_REG = syscon;
-
- printk("USB: hmc %d", config->hmc_mode);
- if (alt_pingroup)
- printk(", usb2 alt %d wires", config->pins[2]);
- else if (config->pins[0])
- printk(", usb0 %d wires%s", config->pins[0],
- is_usb0_device(config) ? " (dev)" : "");
- if (config->pins[1])
- printk(", usb1 %d wires", config->pins[1]);
- if (!alt_pingroup && config->pins[2])
- printk(", usb2 %d wires", config->pins[2]);
- if (config->otg)
- printk(", Mini-AB on usb%d", config->otg - 1);
- printk("\n");
-
- /* leave USB clocks/controllers off until needed */
- ULPD_SOFT_REQ_REG &= ~SOFT_USB_CLK_REQ;
- ULPD_CLOCK_CTRL_REG &= ~USB_MCLK_EN;
- ULPD_CLOCK_CTRL_REG |= DIS_USB_PVCI_CLK;
- syscon = OTG_SYSCON_1_REG;
- syscon |= HST_IDLE_EN|DEV_IDLE_EN|OTG_IDLE_EN;
-
-#ifdef CONFIG_USB_GADGET_OMAP
- if (config->otg || config->register_dev) {
- syscon &= ~DEV_IDLE_EN;
- udc_device.dev.platform_data = config;
- /* FIXME patch IRQ numbers for omap730 */
- status = platform_device_register(&udc_device);
- if (status)
- pr_debug("can't register UDC device, %d\n", status);
- }
-#endif
-
-#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
- if (config->otg || config->register_host) {
- syscon &= ~HST_IDLE_EN;
- ohci_device.dev.platform_data = config;
- if (cpu_is_omap730())
- ohci_resources[1].start = INT_730_USB_HHC_1;
- status = platform_device_register(&ohci_device);
- if (status)
- pr_debug("can't register OHCI device, %d\n", status);
- }
-#endif
-
-#ifdef CONFIG_USB_OTG
- if (config->otg) {
- syscon &= ~OTG_IDLE_EN;
- otg_device.dev.platform_data = config;
- if (cpu_is_omap730())
- otg_resources[1].start = INT_730_USB_OTG;
- status = platform_device_register(&otg_device);
- if (status)
- pr_debug("can't register OTG device, %d\n", status);
- }
-#endif
- pr_debug("OTG_SYSCON_1_REG = %08x\n", syscon);
- OTG_SYSCON_1_REG = syscon;
-
- status = 0;
-}
-
-#else
-static inline void omap_otg_init(struct omap_usb_config *config) {}
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef CONFIG_ARCH_OMAP1510
-
-#define ULPD_DPLL_CTRL_REG __REG16(ULPD_DPLL_CTRL)
-#define DPLL_IOB (1 << 13)
-#define DPLL_PLL_ENABLE (1 << 4)
-#define DPLL_LOCK (1 << 0)
-
-#define ULPD_APLL_CTRL_REG __REG16(ULPD_APLL_CTRL)
-#define APLL_NDPLL_SWITCH (1 << 0)
-
-
-static void __init omap_1510_usb_init(struct omap_usb_config *config)
-{
- int status;
- unsigned int val;
-
- omap_usb0_init(config->pins[0], is_usb0_device(config));
- omap_usb1_init(config->pins[1]);
- omap_usb2_init(config->pins[2], 0);
-
- val = omap_readl(MOD_CONF_CTRL_0) & ~(0x3f << 1);
- val |= (config->hmc_mode << 1);
- omap_writel(val, MOD_CONF_CTRL_0);
-
- printk("USB: hmc %d", config->hmc_mode);
- if (config->pins[0])
- printk(", usb0 %d wires%s", config->pins[0],
- is_usb0_device(config) ? " (dev)" : "");
- if (config->pins[1])
- printk(", usb1 %d wires", config->pins[1]);
- if (config->pins[2])
- printk(", usb2 %d wires", config->pins[2]);
- printk("\n");
-
- /* use DPLL for 48 MHz function clock */
- pr_debug("APLL %04x DPLL %04x REQ %04x\n", ULPD_APLL_CTRL_REG,
- ULPD_DPLL_CTRL_REG, ULPD_SOFT_REQ_REG);
- ULPD_APLL_CTRL_REG &= ~APLL_NDPLL_SWITCH;
- ULPD_DPLL_CTRL_REG |= DPLL_IOB | DPLL_PLL_ENABLE;
- ULPD_SOFT_REQ_REG |= SOFT_UDC_REQ | SOFT_DPLL_REQ;
- while (!(ULPD_DPLL_CTRL_REG & DPLL_LOCK))
- cpu_relax();
-
-#ifdef CONFIG_USB_GADGET_OMAP
- if (config->register_dev) {
- udc_device.dev.platform_data = config;
- status = platform_device_register(&udc_device);
- if (status)
- pr_debug("can't register UDC device, %d\n", status);
- /* udc driver gates 48MHz by D+ pullup */
- }
-#endif
-
-#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
- if (config->register_host) {
- ohci_device.dev.platform_data = config;
- status = platform_device_register(&ohci_device);
- if (status)
- pr_debug("can't register OHCI device, %d\n", status);
- /* hcd explicitly gates 48MHz */
- }
-#endif
-}
-
-#else
-static inline void omap_1510_usb_init(struct omap_usb_config *config) {}
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-static struct omap_usb_config platform_data;
-
-static int __init
-omap_usb_init(void)
-{
- const struct omap_usb_config *config;
-
- config = omap_get_config(OMAP_TAG_USB, struct omap_usb_config);
- if (config == NULL) {
- printk(KERN_ERR "USB: No board-specific "
- "platform config found\n");
- return -ENODEV;
- }
- platform_data = *config;
-
- if (cpu_is_omap730() || cpu_is_omap16xx())
- omap_otg_init(&platform_data);
- else if (cpu_is_omap15xx())
- omap_1510_usb_init(&platform_data);
- else {
- printk(KERN_ERR "USB: No init for your chip yet\n");
- return -ENODEV;
- }
- return 0;
-}
-
-subsys_initcall(omap_usb_init);