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-rw-r--r--arch/arm/mach-tegra/include/mach/memory.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/include/mach/memory.h b/arch/arm/mach-tegra/include/mach/memory.h
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1/*
2 * arch/arm/mach-tegra/include/mach/memory.h
3 *
4 * Copyright (C) 2010 Google, Inc.
5 * Copyright (C) 2011 NVIDIA Corporation.
6 *
7 * Author:
8 * Colin Cross <ccross@google.com>
9 * Erik Gilling <konkers@google.com>
10 *
11 * This software is licensed under the terms of the GNU General Public
12 * License version 2, as published by the Free Software Foundation, and
13 * may be copied, distributed, and modified under those terms.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 */
21
22#ifndef __MACH_TEGRA_MEMORY_H
23#define __MACH_TEGRA_MEMORY_H
24
25/* physical offset of RAM */
26#if defined(CONFIG_ARCH_TEGRA_2x_SOC)
27#define PLAT_PHYS_OFFSET UL(0)
28#else
29#define PLAT_PHYS_OFFSET UL(0x80000000)
30#endif
31
32/*
33 * Unaligned DMA causes tegra dma to place data on 4-byte boundary after
34 * expected address. Call to skb_reserve(skb, NET_IP_ALIGN) was causing skb
35 * buffers in usbnet.c to become unaligned.
36 */
37#define NET_IP_ALIGN 0
38
39#define CONSISTENT_DMA_SIZE (14 * SZ_1M)
40
41#endif
42