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authorAlessandro Zummo <azummo-armlinux@towertech.it>2005-11-10 09:05:04 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-10 09:05:04 -0500
commita7918f39bbe59fe76f43743bdb6bb8b0bdefd94a (patch)
treea958184b769c8c4f4622627d92ff9fa44f4ee4c4 /include/asm-arm/arch-ixp4xx
parentaf36bef0c5bb82f361ebb2f106f11d0f63dac887 (diff)
[ARM] 3140/1: NSLU2 machine support
Patch from Alessandro Zummo This patch adds support for the LinkSys NSLU2 running with both big and little-endian kernels. The LinkSys NSLU2 is a cost engineered ARM, XScale 420 based system similar to the the Intel IXDP425 evaluation board. It uses the IXP4XX ARCH. While this patch applies independently of other patches the resultant kernel requires further patches to successfully use onboard devices, including the onboard flash. Since these patches are independent of this one they will be submitted separately. A defconfig is not included here because not all of the required drivers are actually in the kernel. We intend to provide one as soon as the patches will be incorporated in mainstream. This patch is the combined work of nslu2-linux.org Signed-off-by: John Bowler <jbowler@acm.org> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-ixp4xx')
-rw-r--r--include/asm-arm/arch-ixp4xx/hardware.h1
-rw-r--r--include/asm-arm/arch-ixp4xx/irqs.h7
-rw-r--r--include/asm-arm/arch-ixp4xx/nslu2.h96
3 files changed, 104 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp4xx/hardware.h b/include/asm-arm/arch-ixp4xx/hardware.h
index 55d85eea8c1a..cfb413c845f7 100644
--- a/include/asm-arm/arch-ixp4xx/hardware.h
+++ b/include/asm-arm/arch-ixp4xx/hardware.h
@@ -44,5 +44,6 @@ extern unsigned int processor_id;
44#include "ixdp425.h" 44#include "ixdp425.h"
45#include "coyote.h" 45#include "coyote.h"
46#include "prpmc1100.h" 46#include "prpmc1100.h"
47#include "nslu2.h"
47 48
48#endif /* _ASM_ARCH_HARDWARE_H */ 49#endif /* _ASM_ARCH_HARDWARE_H */
diff --git a/include/asm-arm/arch-ixp4xx/irqs.h b/include/asm-arm/arch-ixp4xx/irqs.h
index ca808281c7f9..2cf4930372bc 100644
--- a/include/asm-arm/arch-ixp4xx/irqs.h
+++ b/include/asm-arm/arch-ixp4xx/irqs.h
@@ -93,4 +93,11 @@
93#define IRQ_COYOTE_PCI_SLOT1 IRQ_IXP4XX_GPIO11 93#define IRQ_COYOTE_PCI_SLOT1 IRQ_IXP4XX_GPIO11
94#define IRQ_COYOTE_IDE IRQ_IXP4XX_GPIO5 94#define IRQ_COYOTE_IDE IRQ_IXP4XX_GPIO5
95 95
96/*
97 * NSLU2 board IRQs
98 */
99#define IRQ_NSLU2_PCI_INTA IRQ_IXP4XX_GPIO11
100#define IRQ_NSLU2_PCI_INTB IRQ_IXP4XX_GPIO10
101#define IRQ_NSLU2_PCI_INTC IRQ_IXP4XX_GPIO9
102
96#endif 103#endif
diff --git a/include/asm-arm/arch-ixp4xx/nslu2.h b/include/asm-arm/arch-ixp4xx/nslu2.h
new file mode 100644
index 000000000000..b8b347a559c7
--- /dev/null
+++ b/include/asm-arm/arch-ixp4xx/nslu2.h
@@ -0,0 +1,96 @@
1/*
2 * include/asm-arm/arch-ixp4xx/nslu2.h
3 *
4 * NSLU2 platform specific definitions
5 *
6 * Author: Mark Rakes <mrakes AT mac.com>
7 * Maintainers: http://www.nslu2-linux.org
8 *
9 * based on ixdp425.h:
10 * Copyright 2004 (c) MontaVista, Software, Inc.
11 *
12 * This file is licensed under the terms of the GNU General Public
13 * License version 2. This program is licensed "as is" without any
14 * warranty of any kind, whether express or implied.
15 */
16
17#ifndef __ASM_ARCH_HARDWARE_H__
18#error "Do not include this directly, instead #include <asm/hardware.h>"
19#endif
20
21#define NSLU2_FLASH_BASE IXP4XX_EXP_BUS_CS0_BASE_PHYS
22#define NSLU2_FLASH_SIZE IXP4XX_EXP_BUS_CSX_REGION_SIZE
23
24#define NSLU2_SDA_PIN 7
25#define NSLU2_SCL_PIN 6
26
27/*
28 * NSLU2 PCI IRQs
29 */
30#define NSLU2_PCI_MAX_DEV 3
31#define NSLU2_PCI_IRQ_LINES 3
32
33
34/* PCI controller GPIO to IRQ pin mappings */
35#define NSLU2_PCI_INTA_PIN 11
36#define NSLU2_PCI_INTB_PIN 10
37#define NSLU2_PCI_INTC_PIN 9
38#define NSLU2_PCI_INTD_PIN 8
39
40
41/* NSLU2 Timer */
42#define NSLU2_FREQ 66000000
43#define NSLU2_CLOCK_TICK_RATE (((NSLU2_FREQ / HZ & ~IXP4XX_OST_RELOAD_MASK) + 1) * HZ)
44#define NSLU2_CLOCK_TICKS_PER_USEC ((NSLU2_CLOCK_TICK_RATE + USEC_PER_SEC/2) / USEC_PER_SEC)
45
46/* GPIO */
47
48#define NSLU2_GPIO0 0
49#define NSLU2_GPIO1 1
50#define NSLU2_GPIO2 2
51#define NSLU2_GPIO3 3
52#define NSLU2_GPIO4 4
53#define NSLU2_GPIO5 5
54#define NSLU2_GPIO6 6
55#define NSLU2_GPIO7 7
56#define NSLU2_GPIO8 8
57#define NSLU2_GPIO9 9
58#define NSLU2_GPIO10 10
59#define NSLU2_GPIO11 11
60#define NSLU2_GPIO12 12
61#define NSLU2_GPIO13 13
62#define NSLU2_GPIO14 14
63#define NSLU2_GPIO15 15
64
65/* Buttons */
66
67#define NSLU2_PB_GPIO NSLU2_GPIO5
68#define NSLU2_PO_GPIO NSLU2_GPIO8 /* power off */
69#define NSLU2_RB_GPIO NSLU2_GPIO12
70
71#define NSLU2_PB_IRQ IRQ_IXP4XX_GPIO5
72#define NSLU2_RB_IRQ IRQ_IXP4XX_GPIO12
73
74#define NSLU2_PB_BM (1L << NSLU2_PB_GPIO)
75#define NSLU2_PO_BM (1L << NSLU2_PO_GPIO)
76#define NSLU2_RB_BM (1L << NSLU2_RB_GPIO)
77
78/* Buzzer */
79
80#define NSLU2_GPIO_BUZZ 4
81#define NSLU2_BZ_BM (1L << NSLU2_GPIO_BUZZ)
82/* LEDs */
83
84#define NSLU2_LED_RED NSLU2_GPIO0
85#define NSLU2_LED_GRN NSLU2_GPIO1
86
87#define NSLU2_LED_RED_BM (1L << NSLU2_LED_RED)
88#define NSLU2_LED_GRN_BM (1L << NSLU2_LED_GRN)
89
90#define NSLU2_LED_DISK1 NSLU2_GPIO2
91#define NSLU2_LED_DISK2 NSLU2_GPIO3
92
93#define NSLU2_LED_DISK1_BM (1L << NSLU2_GPIO2)
94#define NSLU2_LED_DISK2_BM (1L << NSLU2_GPIO3)
95
96