From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/arch/arm/mach-omap1/usb.c | 37 +++++++++++++++++++++++--------------
1 files changed, 23 insertions(+), 14 deletions(-)
diff --git a/kernel/arch/arm/mach-omap1/usb.c b/kernel/arch/arm/mach-omap1/usb.c
index 455e2cf..ba85662 100644
--- a/kernel/arch/arm/mach-omap1/usb.c
+++ b/kernel/arch/arm/mach-omap1/usb.c
@@ -1,27 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Platform level USB initialization for FS USB OTG controller on omap1
*
* 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/init.h>
#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <asm/irq.h>
@@ -555,6 +543,25 @@
/* ULPD_APLL_CTRL */
#define APLL_NDPLL_SWITCH (1 << 0)
+static int omap_1510_usb_ohci_notifier(struct notifier_block *nb,
+ unsigned long event, void *data)
+{
+ struct device *dev = data;
+
+ if (event != BUS_NOTIFY_ADD_DEVICE)
+ return NOTIFY_DONE;
+
+ if (strncmp(dev_name(dev), "ohci", 4) == 0 &&
+ dma_direct_set_offset(dev, PHYS_OFFSET, OMAP1510_LB_OFFSET,
+ (u64)-1))
+ WARN_ONCE(1, "failed to set DMA offset\n");
+ return NOTIFY_OK;
+}
+
+static struct notifier_block omap_1510_usb_ohci_nb = {
+ .notifier_call = omap_1510_usb_ohci_notifier,
+};
+
static void __init omap_1510_usb_init(struct omap_usb_config *config)
{
unsigned int val;
@@ -613,6 +620,8 @@
if (config->register_host) {
int status;
+ bus_register_notifier(&platform_bus_type,
+ &omap_1510_usb_ohci_nb);
ohci_device.dev.platform_data = config;
status = platform_device_register(&ohci_device);
if (status)
--
Gitblit v1.6.2