From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/include/linux/amba/bus.h | 52 +++++++++++++++++++++++++++++++++++++++++++++++-----
1 files changed, 47 insertions(+), 5 deletions(-)
diff --git a/kernel/include/linux/amba/bus.h b/kernel/include/linux/amba/bus.h
index d143c13..55e2f02 100644
--- a/kernel/include/linux/amba/bus.h
+++ b/kernel/include/linux/amba/bus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* linux/include/amba/bus.h
*
@@ -6,10 +7,6 @@
* region or that is derived from a PrimeCell.
*
* Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef ASMARM_AMBA_H
#define ASMARM_AMBA_H
@@ -20,10 +17,48 @@
#include <linux/err.h>
#include <linux/resource.h>
#include <linux/regulator/consumer.h>
+#include <linux/android_kabi.h>
#define AMBA_NR_IRQS 9
#define AMBA_CID 0xb105f00d
#define CORESIGHT_CID 0xb105900d
+
+/*
+ * CoreSight Architecture specification updates the ID specification
+ * for components on the AMBA bus. (ARM IHI 0029E)
+ *
+ * Bits 15:12 of the CID are the device class.
+ *
+ * Class 0xF remains for PrimeCell and legacy components. (AMBA_CID above)
+ * Class 0x9 defines the component as CoreSight (CORESIGHT_CID above)
+ * Class 0x0, 0x1, 0xB, 0xE define components that do not have driver support
+ * at present.
+ * Class 0x2-0x8,0xA and 0xD-0xD are presently reserved.
+ *
+ * Remaining CID bits stay as 0xb105-00d
+ */
+
+/**
+ * Class 0x9 components use additional values to form a Unique Component
+ * Identifier (UCI), where peripheral ID values are identical for different
+ * components. Passed to the amba bus code from the component driver via
+ * the amba_id->data pointer.
+ * @devarch : coresight devarch register value
+ * @devarch_mask: mask bits used for matching. 0 indicates UCI not used.
+ * @devtype : coresight device type value
+ * @data : additional driver data. As we have usurped the original
+ * pointer some devices may still need additional data
+ */
+struct amba_cs_uci_id {
+ unsigned int devarch;
+ unsigned int devarch_mask;
+ unsigned int devtype;
+ void *data;
+};
+
+/* define offsets for registers used by UCI */
+#define UCI_REG_DEVTYPE_OFFSET 0xFCC
+#define UCI_REG_DEVARCH_OFFSET 0xFBC
struct clk;
@@ -31,17 +66,24 @@
struct device dev;
struct resource res;
struct clk *pclk;
+ struct device_dma_parameters dma_parms;
unsigned int periphid;
+ unsigned int cid;
+ struct amba_cs_uci_id uci;
unsigned int irq[AMBA_NR_IRQS];
char *driver_override;
+
+ ANDROID_KABI_RESERVE(1);
};
struct amba_driver {
struct device_driver drv;
int (*probe)(struct amba_device *, const struct amba_id *);
- int (*remove)(struct amba_device *);
+ void (*remove)(struct amba_device *);
void (*shutdown)(struct amba_device *);
const struct amba_id *id_table;
+
+ ANDROID_KABI_RESERVE(1);
};
/*
--
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