branch Attitude Adjustment

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 156 insertions, 0 deletions

diff --git a/target/linux/ubicom32/files/drivers/usb/musb/ubi32_usb.c b/target/linux/ubicom32/files/drivers/usb/musb/ubi32_usb.c
new file mode 100644
index 000000000..d89e00416
--- /dev/null
+++ b/target/linux/ubicom32/files/drivers/usb/musb/ubi32_usb.c
@@ -0,0 +1,156 @@
+/*
+ * drivers/usb/musb/ubi32_usb.c
+ *   Ubicom32 usb controller driver.
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ * Copyright (C) 2005-2006 by Texas Instruments
+ *
+ * Derived from the Texas Instruments Inventra Controller Driver for Linux.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port 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.
+ *
+ * The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * Ubicom32 implementation derived from (with many thanks):
+ *   arch/m68knommu
+ *   arch/blackfin
+ *   arch/parisc
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <asm/io.h>
+#include <asm/ip5000.h>
+#include "musb_core.h"
+
+void musb_platform_enable(struct musb *musb)
+{
+}
+void musb_platform_disable(struct musb *musb)
+{
+}
+
+int musb_platform_set_mode(struct musb *musb, u8 musb_mode) {
+	return 0;
+}
+
+static void ip5k_usb_hcd_vbus_power(struct musb *musb, int is_on, int sleeping)
+{
+}
+
+static void ip5k_usb_hcd_set_vbus(struct musb *musb, int is_on)
+{
+	u8		devctl;
+	/* HDRC controls CPEN, but beware current surges during device
+	 * connect.  They can trigger transient overcurrent conditions
+	 * that must be ignored.
+	 */
+
+	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+
+	if (is_on) {
+		musb->is_active = 1;
+		musb->xceiv.default_a = 1;
+		musb->xceiv.state = OTG_STATE_A_WAIT_VRISE;
+		devctl |= MUSB_DEVCTL_SESSION;
+
+		MUSB_HST_MODE(musb);
+	} else {
+		musb->is_active = 0;
+
+		/* NOTE:  we're skipping A_WAIT_VFALL -> A_IDLE and
+		 * jumping right to B_IDLE...
+		 */
+
+		musb->xceiv.default_a = 0;
+		musb->xceiv.state = OTG_STATE_B_IDLE;
+		devctl &= ~MUSB_DEVCTL_SESSION;
+
+		MUSB_DEV_MODE(musb);
+	}
+	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+
+	DBG(1, "VBUS %s, devctl %02x "
+		/* otg %3x conf %08x prcm %08x */ "\n",
+		otg_state_string(musb),
+		musb_readb(musb->mregs, MUSB_DEVCTL));
+}
+static int ip5k_usb_hcd_set_power(struct otg_transceiver *x, unsigned mA)
+{
+	return 0;
+}
+
+static int musb_platform_resume(struct musb *musb);
+
+int __init musb_platform_init(struct musb *musb)
+{
+
+#ifdef CONFIG_UBICOM32_V4
+	u32_t chip_id;
+	asm volatile (
+		      "move.4	%0, CHIP_ID	\n\t"
+		      : "=r" (chip_id)
+	);
+	if (chip_id == 0x30001) {
+		*((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 30);
+		udelay(1);
+		*((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 31);
+	} else {
+		*((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 17);
+		udelay(1);
+		*((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 14);
+	}
+#endif
+
+	 *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_CFG)) |= ((1 << 14) | (1 <<15));
+
+	/* The i-clk is AUTO gated. Hence there is no need
+	 * to disable it until the driver is shutdown */
+
+	clk_enable(musb->clock);
+	musb_platform_resume(musb);
+
+	ip5k_usb_hcd_vbus_power(musb, musb->board_mode == MUSB_HOST, 1);
+
+	if (is_host_enabled(musb))
+		musb->board_set_vbus = ip5k_usb_hcd_set_vbus;
+	if (is_peripheral_enabled(musb))
+		musb->xceiv.set_power = ip5k_usb_hcd_set_power;
+
+	return 0;
+}
+
+
+int musb_platform_suspend(struct musb *musb)
+{
+	return 0;
+}
+int musb_platform_resume(struct musb *musb)
+{
+	return 0;
+}
+
+int musb_platform_exit(struct musb *musb)
+{
+	ip5k_usb_hcd_vbus_power(musb, 0 /*off*/, 1);
+	musb_platform_suspend(musb);
+	return 0;
+}