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authorLinus Torvalds <torvalds@g5.osdl.org>2006-09-28 17:40:39 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-28 17:40:39 -0400
commitebdea46fecae40c4d7effcd33f40918a37a1df4b (patch)
treee4312bf7f1f3d184738963a0ec300aa9fdfd55c1 /arch/arm/mach-iop32x/iq31244.c
parentfecf3404f4aba6d0edeba31eeb018cbb6326dff2 (diff)
parent250d375d1da45a5e08ab8baf5eaa7eb258afd82b (diff)
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (130 commits) [ARM] 3856/1: Add clocksource for Intel IXP4xx platforms [ARM] 3855/1: Add generic time support [ARM] 3873/1: S3C24XX: Add irq_chip names [ARM] 3872/1: S3C24XX: Apply consistant tabbing to irq_chips [ARM] 3871/1: S3C24XX: Fix ordering of EINT4..23 [ARM] nommu: confirms the CR_V bit in nommu mode [ARM] nommu: abort handler fixup for !CPU_CP15_MMU cores. [ARM] 3870/1: AT91: Start removing static memory mappings [ARM] 3869/1: AT91: NAND support for DK and KB9202 boards [ARM] 3868/1: AT91 hardware header update [ARM] 3867/1: AT91 GPIO update [ARM] 3866/1: AT91 clock update [ARM] 3865/1: AT91RM9200 header updates [ARM] 3862/2: S3C2410 - add basic power management support for AML M5900 series [ARM] kthread: switch arch/arm/kernel/apm.c [ARM] Off-by-one in arch/arm/common/icst* [ARM] 3864/1: Refactore sharpsl_pm [ARM] 3863/1: Add Locomo SPI Device [ARM] 3847/2: Convert LOMOMO to use struct device for GPIOs [ARM] Use CPU_CACHE_* where possible in asm/cacheflush.h ...
Diffstat (limited to 'arch/arm/mach-iop32x/iq31244.c')
-rw-r--r--arch/arm/mach-iop32x/iq31244.c293
1 files changed, 293 insertions, 0 deletions
diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c
new file mode 100644
index 000000000000..be4aedfa0de6
--- /dev/null
+++ b/arch/arm/mach-iop32x/iq31244.c
@@ -0,0 +1,293 @@
1/*
2 * arch/arm/mach-iop32x/iq31244.c
3 *
4 * Board support code for the Intel EP80219 and IQ31244 platforms.
5 *
6 * Author: Rory Bolt <rorybolt@pacbell.net>
7 * Copyright (C) 2002 Rory Bolt
8 * Copyright 2003 (c) MontaVista, Software, Inc.
9 * Copyright (C) 2004 Intel Corp.
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 */
16
17#include <linux/mm.h>
18#include <linux/init.h>
19#include <linux/delay.h>
20#include <linux/kernel.h>
21#include <linux/pci.h>
22#include <linux/pm.h>
23#include <linux/string.h>
24#include <linux/slab.h>
25#include <linux/serial_core.h>
26#include <linux/serial_8250.h>
27#include <linux/mtd/physmap.h>
28#include <linux/platform_device.h>
29#include <asm/hardware.h>
30#include <asm/io.h>
31#include <asm/irq.h>
32#include <asm/mach/arch.h>
33#include <asm/mach/map.h>
34#include <asm/mach/pci.h>
35#include <asm/mach/time.h>
36#include <asm/mach-types.h>
37#include <asm/page.h>
38#include <asm/pgtable.h>
39
40
41/*
42 * The EP80219 and IQ31244 use the same machine ID. To find out
43 * which of the two we're running on, we look at the processor ID.
44 */
45static int is_80219(void)
46{
47 extern int processor_id;
48 return !!((processor_id & 0xffffffe0) == 0x69052e20);
49}
50
51
52/*
53 * EP80219/IQ31244 timer tick configuration.
54 */
55static void __init iq31244_timer_init(void)
56{
57 if (is_80219()) {
58 /* 33.333 MHz crystal. */
59 iop3xx_init_time(200000000);
60 } else {
61 /* 33.000 MHz crystal. */
62 iop3xx_init_time(198000000);
63 }
64}
65
66static struct sys_timer iq31244_timer = {
67 .init = iq31244_timer_init,
68 .offset = iop3xx_gettimeoffset,
69};
70
71
72/*
73 * IQ31244 I/O.
74 */
75static struct map_desc iq31244_io_desc[] __initdata = {
76 { /* on-board devices */
77 .virtual = IQ31244_UART,
78 .pfn = __phys_to_pfn(IQ31244_UART),
79 .length = 0x00100000,
80 .type = MT_DEVICE,
81 },
82};
83
84void __init iq31244_map_io(void)
85{
86 iop3xx_map_io();
87 iotable_init(iq31244_io_desc, ARRAY_SIZE(iq31244_io_desc));
88}
89
90
91/*
92 * EP80219/IQ31244 PCI.
93 */
94static inline int __init
95ep80219_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
96{
97 int irq;
98
99 if (slot == 0) {
100 /* CFlash */
101 irq = IRQ_IOP32X_XINT1;
102 } else if (slot == 1) {
103 /* 82551 Pro 100 */
104 irq = IRQ_IOP32X_XINT0;
105 } else if (slot == 2) {
106 /* PCI-X Slot */
107 irq = IRQ_IOP32X_XINT3;
108 } else if (slot == 3) {
109 /* SATA */
110 irq = IRQ_IOP32X_XINT2;
111 } else {
112 printk(KERN_ERR "ep80219_pci_map_irq() called for unknown "
113 "device PCI:%d:%d:%d\n", dev->bus->number,
114 PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
115 irq = -1;
116 }
117
118 return irq;
119}
120
121static struct hw_pci ep80219_pci __initdata = {
122 .swizzle = pci_std_swizzle,
123 .nr_controllers = 1,
124 .setup = iop3xx_pci_setup,
125 .preinit = iop3xx_pci_preinit,
126 .scan = iop3xx_pci_scan_bus,
127 .map_irq = ep80219_pci_map_irq,
128};
129
130static inline int __init
131iq31244_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
132{
133 int irq;
134
135 if (slot == 0) {
136 /* CFlash */
137 irq = IRQ_IOP32X_XINT1;
138 } else if (slot == 1) {
139 /* SATA */
140 irq = IRQ_IOP32X_XINT2;
141 } else if (slot == 2) {
142 /* PCI-X Slot */
143 irq = IRQ_IOP32X_XINT3;
144 } else if (slot == 3) {
145 /* 82546 GigE */
146 irq = IRQ_IOP32X_XINT0;
147 } else {
148 printk(KERN_ERR "iq31244_pci_map_irq called for unknown "
149 "device PCI:%d:%d:%d\n", dev->bus->number,
150 PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
151 irq = -1;
152 }
153
154 return irq;
155}
156
157static struct hw_pci iq31244_pci __initdata = {
158 .swizzle = pci_std_swizzle,
159 .nr_controllers = 1,
160 .setup = iop3xx_pci_setup,
161 .preinit = iop3xx_pci_preinit,
162 .scan = iop3xx_pci_scan_bus,
163 .map_irq = iq31244_pci_map_irq,
164};
165
166static int __init iq31244_pci_init(void)
167{
168 if (machine_is_iq31244()) {
169 if (is_80219()) {
170 pci_common_init(&ep80219_pci);
171 } else {
172 pci_common_init(&iq31244_pci);
173 }
174 }
175
176 return 0;
177}
178
179subsys_initcall(iq31244_pci_init);
180
181
182/*
183 * IQ31244 machine initialisation.
184 */
185static struct physmap_flash_data iq31244_flash_data = {
186 .width = 2,
187};
188
189static struct resource iq31244_flash_resource = {
190 .start = 0xf0000000,
191 .end = 0xf07fffff,
192 .flags = IORESOURCE_MEM,
193};
194
195static struct platform_device iq31244_flash_device = {
196 .name = "physmap-flash",
197 .id = 0,
198 .dev = {
199 .platform_data = &iq31244_flash_data,
200 },
201 .num_resources = 1,
202 .resource = &iq31244_flash_resource,
203};
204
205static struct plat_serial8250_port iq31244_serial_port[] = {
206 {
207 .mapbase = IQ31244_UART,
208 .membase = (char *)IQ31244_UART,
209 .irq = IRQ_IOP32X_XINT1,
210 .flags = UPF_SKIP_TEST,
211 .iotype = UPIO_MEM,
212 .regshift = 0,
213 .uartclk = 1843200,
214 },
215 { },
216};
217
218static struct resource iq31244_uart_resource = {
219 .start = IQ31244_UART,
220 .end = IQ31244_UART + 7,
221 .flags = IORESOURCE_MEM,
222};
223
224static struct platform_device iq31244_serial_device = {
225 .name = "serial8250",
226 .id = PLAT8250_DEV_PLATFORM,
227 .dev = {
228 .platform_data = iq31244_serial_port,
229 },
230 .num_resources = 1,
231 .resource = &iq31244_uart_resource,
232};
233
234/*
235 * This function will send a SHUTDOWN_COMPLETE message to the PIC
236 * controller over I2C. We are not using the i2c subsystem since
237 * we are going to power off and it may be removed
238 */
239void ep80219_power_off(void)
240{
241 /*
242 * Send the Address byte w/ the start condition
243 */
244 *IOP3XX_IDBR1 = 0x60;
245 *IOP3XX_ICR1 = 0xE9;
246 mdelay(1);
247
248 /*
249 * Send the START_MSG byte w/ no start or stop condition
250 */
251 *IOP3XX_IDBR1 = 0x0F;
252 *IOP3XX_ICR1 = 0xE8;
253 mdelay(1);
254
255 /*
256 * Send the SHUTDOWN_COMPLETE Message ID byte w/ no start or
257 * stop condition
258 */
259 *IOP3XX_IDBR1 = 0x03;
260 *IOP3XX_ICR1 = 0xE8;
261 mdelay(1);
262
263 /*
264 * Send an ignored byte w/ stop condition
265 */
266 *IOP3XX_IDBR1 = 0x00;
267 *IOP3XX_ICR1 = 0xEA;
268
269 while (1)
270 ;
271}
272
273static void __init iq31244_init_machine(void)
274{
275 platform_device_register(&iop3xx_i2c0_device);
276 platform_device_register(&iop3xx_i2c1_device);
277 platform_device_register(&iq31244_flash_device);
278 platform_device_register(&iq31244_serial_device);
279
280 if (is_80219())
281 pm_power_off = ep80219_power_off;
282}
283
284MACHINE_START(IQ31244, "Intel IQ31244")
285 /* Maintainer: Intel Corp. */
286 .phys_io = IQ31244_UART,
287 .io_pg_offst = ((IQ31244_UART) >> 18) & 0xfffc,
288 .boot_params = 0xa0000100,
289 .map_io = iq31244_map_io,
290 .init_irq = iop32x_init_irq,
291 .timer = &iq31244_timer,
292 .init_machine = iq31244_init_machine,
293MACHINE_END