omap: Move omap2 FS USB platform init code into mach-omap2/usb-fs.c
Move omap2 FS USB platform init code into mach-omap2/usb-fs.c. This will
allow further work later on to use omap hwmod for initializing the
device.
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 6c6d7c6..3b38418 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -149,6 +149,8 @@
obj-$(CONFIG_MACH_SBC3530) += board-omap3stalker.o \
hsmmc.o
# Platform specific device init code
+usbfs-$(CONFIG_ARCH_OMAP_OTG) := usb-fs.o
+obj-y += $(usbfs-m) $(usbfs-y)
obj-y += usb-musb.o
obj-$(CONFIG_MACH_OMAP2_TUSB6010) += usb-tusb6010.o
obj-y += usb-ehci.o
diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index a11a575..ec920c9 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -226,7 +226,7 @@
platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
omap_serial_init();
omap2_hsmmc_init(mmc);
- omap_usb_init(&sdp2430_usb_config);
+ omap2_usbfs_init(&sdp2430_usb_config);
usb_musb_init(&musb_board_data);
board_smc91x_init();
diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c
index aa69fb9..987b24d 100644
--- a/arch/arm/mach-omap2/board-apollon.c
+++ b/arch/arm/mach-omap2/board-apollon.c
@@ -306,7 +306,7 @@
omap_cfg_reg(P21_242X_GPIO12);
gpio_request(12, "USB suspend");
gpio_direction_output(12, 0);
- omap_usb_init(&apollon_usb_config);
+ omap2_usbfs_init(&apollon_usb_config);
}
static void __init omap_apollon_init(void)
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index 0665f2c..54a231c 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -362,7 +362,7 @@
ARRAY_SIZE(h4_i2c_board_info));
platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
- omap_usb_init(&h4_usb_config);
+ omap2_usbfs_init(&h4_usb_config);
omap_serial_init();
}
diff --git a/arch/arm/mach-omap2/usb-fs.c b/arch/arm/mach-omap2/usb-fs.c
new file mode 100644
index 0000000..f63e576
--- /dev/null
+++ b/arch/arm/mach-omap2/usb-fs.c
@@ -0,0 +1,345 @@
+/*
+ * 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 <asm/irq.h>
+
+#include <plat/control.h>
+#include <plat/mux.h>
+#include <plat/usb.h>
+#include <plat/board.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_cfg_reg(J20_24XX_USB0_PUEN);
+
+ omap_cfg_reg(K18_24XX_USB0_DAT);
+ omap_cfg_reg(K19_24XX_USB0_TXEN);
+ omap_cfg_reg(J14_24XX_USB0_SE0);
+ if (nwires != 3)
+ omap_cfg_reg(J18_24XX_USB0_RCV);
+
+ 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_cfg_reg(J19_24XX_USB0_VP);
+ omap_cfg_reg(K20_24XX_USB0_VM);
+ 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_cfg_reg(Y11_24XX_USB2_DAT);
+ omap_cfg_reg(AA10_24XX_USB2_SE0);
+ if (nwires > 2)
+ omap_cfg_reg(AA12_24XX_USB2_TXEN);
+ if (nwires > 3)
+ omap_cfg_reg(AA6_24XX_USB2_RCV);
+
+ 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:
+ omap_cfg_reg(AA4_24XX_USB2_TLLSE0);
+ /* NOTE: board-specific code must override this setting if
+ * this TLL link is not using DP/DM. Something must also
+ * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED}
+ */
+ 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)
+{
+ if (!cpu_is_omap24xx())
+ return;
+
+ 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);
+}
+
+#endif