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authorLennert Buytenhek <buytenh@wantstofly.org>2006-09-20 21:46:03 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-09-25 05:34:02 -0400
commit0c92e830bd39f3e6cf7b151dffecafbdc623496c (patch)
tree56d9d48416a73cc78cd318880542d7571f5e84cb /arch/arm/mach-iop32x/glantank.c
parente60d07b6cd38a7afb85f2cf51aebcb3359b63819 (diff)
[ARM] 3851/1: iop3xx: add io-data glantank support
Add support for the IO-Data GLAN Tank, from Martin Michlmayr. Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-iop32x/glantank.c')
-rw-r--r--arch/arm/mach-iop32x/glantank.c195
1 files changed, 195 insertions, 0 deletions
diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
new file mode 100644
index 000000000000..b9b765057dbe
--- /dev/null
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -0,0 +1,195 @@
1/*
2 * arch/arm/mach-iop32x/glantank.c
3 *
4 * Board support code for the GLAN Tank.
5 *
6 * Copyright (C) 2006 Martin Michlmayr <tbm@cyrius.com>
7 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 */
14
15#include <linux/mm.h>
16#include <linux/init.h>
17#include <linux/kernel.h>
18#include <linux/pci.h>
19#include <linux/string.h>
20#include <linux/slab.h>
21#include <linux/serial_core.h>
22#include <linux/serial_8250.h>
23#include <linux/mtd/physmap.h>
24#include <linux/platform_device.h>
25#include <asm/hardware.h>
26#include <asm/io.h>
27#include <asm/irq.h>
28#include <asm/mach/arch.h>
29#include <asm/mach/map.h>
30#include <asm/mach/pci.h>
31#include <asm/mach/time.h>
32#include <asm/mach-types.h>
33#include <asm/page.h>
34
35/*
36 * GLAN Tank timer tick configuration.
37 */
38static void __init glantank_timer_init(void)
39{
40 /* 33.333 MHz crystal. */
41 iop3xx_init_time(200000000);
42}
43
44static struct sys_timer glantank_timer = {
45 .init = glantank_timer_init,
46 .offset = iop3xx_gettimeoffset,
47};
48
49
50/*
51 * GLAN Tank I/O.
52 */
53static struct map_desc glantank_io_desc[] __initdata = {
54 { /* on-board devices */
55 .virtual = GLANTANK_UART,
56 .pfn = __phys_to_pfn(GLANTANK_UART),
57 .length = 0x00100000,
58 .type = MT_DEVICE
59 },
60};
61
62void __init glantank_map_io(void)
63{
64 iop3xx_map_io();
65 iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc));
66}
67
68
69/*
70 * GLAN Tank PCI.
71 */
72#define INTA IRQ_IOP32X_XINT0
73#define INTB IRQ_IOP32X_XINT1
74#define INTC IRQ_IOP32X_XINT2
75#define INTD IRQ_IOP32X_XINT3
76
77static inline int __init
78glantank_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
79{
80 static int pci_irq_table[][4] = {
81 /*
82 * PCI IDSEL/INTPIN->INTLINE
83 * A B C D
84 */
85 {INTD, INTD, INTD, INTD}, /* UART (8250) */
86 {INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */
87 {INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */
88 {INTC, INTC, INTC, INTC}, /* USB (NEC) */
89 };
90
91 BUG_ON(pin < 1 || pin > 4);
92
93 return pci_irq_table[slot % 4][pin - 1];
94}
95
96static struct hw_pci glantank_pci __initdata = {
97 .swizzle = pci_std_swizzle,
98 .nr_controllers = 1,
99 .setup = iop3xx_pci_setup,
100 .preinit = iop3xx_pci_preinit,
101 .scan = iop3xx_pci_scan_bus,
102 .map_irq = glantank_pci_map_irq,
103};
104
105static int __init glantank_pci_init(void)
106{
107 if (machine_is_glantank())
108 pci_common_init(&glantank_pci);
109
110 return 0;
111}
112
113subsys_initcall(glantank_pci_init);
114
115
116/*
117 * GLAN Tank machine initialization.
118 */
119static struct physmap_flash_data glantank_flash_data = {
120 .width = 1,
121};
122
123static struct resource glantank_flash_resource = {
124 .start = 0xf0000000,
125 .end = 0xf007ffff,
126 .flags = IORESOURCE_MEM,
127};
128
129static struct platform_device glantank_flash_device = {
130 .name = "physmap-flash",
131 .id = 0,
132 .dev = {
133 .platform_data = &glantank_flash_data,
134 },
135 .num_resources = 1,
136 .resource = &glantank_flash_resource,
137};
138
139static struct plat_serial8250_port glantank_serial_port[] = {
140 {
141 .mapbase = GLANTANK_UART,
142 .membase = (char *)GLANTANK_UART,
143 .irq = IRQ_IOP32X_XINT3,
144 .flags = UPF_SKIP_TEST,
145 .iotype = UPIO_MEM,
146 .regshift = 0,
147 .uartclk = 1843200,
148 },
149 { },
150};
151
152static struct resource glantank_uart_resource = {
153 .start = GLANTANK_UART,
154 .end = GLANTANK_UART + 7,
155 .flags = IORESOURCE_MEM,
156};
157
158static struct platform_device glantank_serial_device = {
159 .name = "serial8250",
160 .id = PLAT8250_DEV_PLATFORM,
161 .dev = {
162 .platform_data = glantank_serial_port,
163 },
164 .num_resources = 1,
165 .resource = &glantank_uart_resource,
166};
167
168static void glantank_power_off(void)
169{
170 __raw_writeb(0x01, 0xfe8d0004);
171
172 while (1)
173 ;
174}
175
176static void __init glantank_init_machine(void)
177{
178 platform_device_register(&iop3xx_i2c0_device);
179 platform_device_register(&iop3xx_i2c1_device);
180 platform_device_register(&glantank_flash_device);
181 platform_device_register(&glantank_serial_device);
182
183 pm_power_off = glantank_power_off;
184}
185
186MACHINE_START(GLANTANK, "GLAN Tank")
187 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
188 .phys_io = GLANTANK_UART,
189 .io_pg_offst = ((GLANTANK_UART) >> 18) & 0xfffc,
190 .boot_params = 0xa0000100,
191 .map_io = glantank_map_io,
192 .init_irq = iop32x_init_irq,
193 .timer = &glantank_timer,
194 .init_machine = glantank_init_machine,
195MACHINE_END