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Florian Fainelli26c288f2007-10-23 18:55:55 +02001/*
Manuel Lauss8e026912011-11-10 12:06:21 +00002 * MTX-1 platform devices registration (Au1500)
Florian Fainelli26c288f2007-10-23 18:55:55 +02003 *
Florian Fainellia1b021d2009-08-01 23:51:20 +02004 * Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
Florian Fainelli26c288f2007-10-23 18:55:55 +02005 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include <linux/init.h>
Manuel Lauss8e026912011-11-10 12:06:21 +000022#include <linux/interrupt.h>
23#include <linux/kernel.h>
Florian Fainelli26c288f2007-10-23 18:55:55 +020024#include <linux/platform_device.h>
25#include <linux/leds.h>
Sergei Shtylyov1ff1a782008-04-30 23:30:12 +040026#include <linux/gpio.h>
Florian Fainellif6ed10a2008-01-07 19:00:46 +010027#include <linux/gpio_keys.h>
28#include <linux/input.h>
Yoichi Yuasa95283562008-07-11 22:34:48 +090029#include <linux/mtd/partitions.h>
30#include <linux/mtd/physmap.h>
31#include <mtd/mtd-abi.h>
Manuel Lauss8e026912011-11-10 12:06:21 +000032#include <asm/bootinfo.h>
33#include <asm/reboot.h>
34#include <asm/mach-au1x00/au1000.h>
Florian Fainellibf3a1eb2011-02-27 19:53:53 +010035#include <asm/mach-au1x00/au1xxx_eth.h>
Manuel Lauss8e026912011-11-10 12:06:21 +000036#include <prom.h>
37
38const char *get_system_type(void)
39{
40 return "MTX-1";
41}
42
43void __init prom_init(void)
44{
45 unsigned char *memsize_str;
46 unsigned long memsize;
47
48 prom_argc = fw_arg0;
49 prom_argv = (char **)fw_arg1;
50 prom_envp = (char **)fw_arg2;
51
52 prom_init_cmdline();
53
54 memsize_str = prom_getenv("memsize");
Manuel Laussd334c2b2014-02-20 14:37:40 +010055 if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
Manuel Lauss8e026912011-11-10 12:06:21 +000056 memsize = 0x04000000;
Manuel Lauss8e026912011-11-10 12:06:21 +000057 add_memory_region(0, memsize, BOOT_MEM_RAM);
58}
59
60void prom_putchar(unsigned char c)
61{
62 alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
63}
64
65static void mtx1_reset(char *c)
66{
67 /* Jump to the reset vector */
68 __asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
69}
70
71static void mtx1_power_off(void)
72{
73 while (1)
74 asm volatile (
75 " .set mips32 \n"
76 " wait \n"
77 " .set mips0 \n");
78}
79
80void __init board_setup(void)
81{
Florian Fainelli4bd5a572012-01-31 18:19:03 +010082#if IS_ENABLED(CONFIG_USB_OHCI_HCD)
Manuel Lauss8e026912011-11-10 12:06:21 +000083 /* Enable USB power switch */
84 alchemy_gpio_direction_output(204, 0);
Florian Fainelli4bd5a572012-01-31 18:19:03 +010085#endif /* IS_ENABLED(CONFIG_USB_OHCI_HCD) */
Manuel Lauss8e026912011-11-10 12:06:21 +000086
87 /* Initialize sys_pinfunc */
Manuel Lauss1d09de72014-07-23 16:36:24 +020088 alchemy_wrsys(SYS_PF_NI2, AU1000_SYS_PINFUNC);
Manuel Lauss8e026912011-11-10 12:06:21 +000089
90 /* Initialize GPIO */
Manuel Lauss1d09de72014-07-23 16:36:24 +020091 alchemy_wrsys(~0, AU1000_SYS_TRIOUTCLR);
Manuel Lauss8e026912011-11-10 12:06:21 +000092 alchemy_gpio_direction_output(0, 0); /* Disable M66EN (PCI 66MHz) */
93 alchemy_gpio_direction_output(3, 1); /* Disable PCI CLKRUN# */
94 alchemy_gpio_direction_output(1, 1); /* Enable EXT_IO3 */
95 alchemy_gpio_direction_output(5, 0); /* Disable eth PHY TX_ER */
96
97 /* Enable LED and set it to green */
98 alchemy_gpio_direction_output(211, 1); /* green on */
99 alchemy_gpio_direction_output(212, 0); /* red off */
100
101 pm_power_off = mtx1_power_off;
102 _machine_halt = mtx1_power_off;
103 _machine_restart = mtx1_reset;
104
105 printk(KERN_INFO "4G Systems MTX-1 Board\n");
106}
107
108/******************************************************************************/
Florian Fainellibf3a1eb2011-02-27 19:53:53 +0100109
Florian Fainellif6ed10a2008-01-07 19:00:46 +0100110static struct gpio_keys_button mtx1_gpio_button[] = {
111 {
112 .gpio = 207,
113 .code = BTN_0,
114 .desc = "System button",
115 }
116};
117
118static struct gpio_keys_platform_data mtx1_buttons_data = {
119 .buttons = mtx1_gpio_button,
120 .nbuttons = ARRAY_SIZE(mtx1_gpio_button),
121};
122
123static struct platform_device mtx1_button = {
124 .name = "gpio-keys",
125 .id = -1,
126 .dev = {
127 .platform_data = &mtx1_buttons_data,
128 }
129};
130
Florian Fainelli26c288f2007-10-23 18:55:55 +0200131static struct resource mtx1_wdt_res[] = {
132 [0] = {
Manuel Laussb7f720d2011-05-08 10:42:20 +0200133 .start = 215,
134 .end = 215,
Florian Fainelli26c288f2007-10-23 18:55:55 +0200135 .name = "mtx1-wdt-gpio",
136 .flags = IORESOURCE_IRQ,
137 }
138};
139
Florian Fainelli26c288f2007-10-23 18:55:55 +0200140static struct platform_device mtx1_wdt = {
141 .name = "mtx1-wdt",
142 .id = 0,
143 .num_resources = ARRAY_SIZE(mtx1_wdt_res),
144 .resource = mtx1_wdt_res,
145};
146
147static struct gpio_led default_leds[] = {
148 {
149 .name = "mtx1:green",
150 .gpio = 211,
151 }, {
152 .name = "mtx1:red",
153 .gpio = 212,
154 },
155};
156
157static struct gpio_led_platform_data mtx1_led_data = {
158 .num_leds = ARRAY_SIZE(default_leds),
159 .leds = default_leds,
160};
161
162static struct platform_device mtx1_gpio_leds = {
163 .name = "leds-gpio",
164 .id = -1,
165 .dev = {
166 .platform_data = &mtx1_led_data,
167 }
168};
169
Yoichi Yuasa95283562008-07-11 22:34:48 +0900170static struct mtd_partition mtx1_mtd_partitions[] = {
171 {
172 .name = "filesystem",
173 .size = 0x01C00000,
Ralf Baechle70342282013-01-22 12:59:30 +0100174 .offset = 0,
Yoichi Yuasa95283562008-07-11 22:34:48 +0900175 },
176 {
177 .name = "yamon",
178 .size = 0x00100000,
Ralf Baechle70342282013-01-22 12:59:30 +0100179 .offset = MTDPART_OFS_APPEND,
Yoichi Yuasa95283562008-07-11 22:34:48 +0900180 .mask_flags = MTD_WRITEABLE,
181 },
182 {
183 .name = "kernel",
184 .size = 0x002c0000,
Ralf Baechle70342282013-01-22 12:59:30 +0100185 .offset = MTDPART_OFS_APPEND,
Yoichi Yuasa95283562008-07-11 22:34:48 +0900186 },
187 {
188 .name = "yamon env",
189 .size = 0x00040000,
Ralf Baechle70342282013-01-22 12:59:30 +0100190 .offset = MTDPART_OFS_APPEND,
Yoichi Yuasa95283562008-07-11 22:34:48 +0900191 },
192};
193
194static struct physmap_flash_data mtx1_flash_data = {
195 .width = 4,
196 .nr_parts = 4,
197 .parts = mtx1_mtd_partitions,
198};
199
200static struct resource mtx1_mtd_resource = {
201 .start = 0x1e000000,
202 .end = 0x1fffffff,
203 .flags = IORESOURCE_MEM,
204};
205
206static struct platform_device mtx1_mtd = {
207 .name = "physmap-flash",
208 .dev = {
209 .platform_data = &mtx1_flash_data,
210 },
211 .num_resources = 1,
212 .resource = &mtx1_mtd_resource,
213};
214
Manuel Lauss7517de32011-08-12 11:39:44 +0200215static struct resource alchemy_pci_host_res[] = {
216 [0] = {
217 .start = AU1500_PCI_PHYS_ADDR,
218 .end = AU1500_PCI_PHYS_ADDR + 0xfff,
219 .flags = IORESOURCE_MEM,
220 },
221};
222
223static int mtx1_pci_idsel(unsigned int devsel, int assert)
224{
225 /* This function is only necessary to support a proprietary Cardbus
226 * adapter on the mtx-1 "singleboard" variant. It triggers a custom
227 * logic chip connected to EXT_IO3 (GPIO1) to suppress IDSEL signals.
228 */
Bruno Randolf143ec742012-07-12 21:54:05 +0100229 udelay(1);
230
Manuel Lauss7517de32011-08-12 11:39:44 +0200231 if (assert && devsel != 0)
232 /* Suppress signal to Cardbus */
233 alchemy_gpio_set_value(1, 0); /* set EXT_IO3 OFF */
234 else
235 alchemy_gpio_set_value(1, 1); /* set EXT_IO3 ON */
236
237 udelay(1);
238 return 1;
239}
240
241static const char mtx1_irqtab[][5] = {
242 [0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 00 - AdapterA-Slot0 (top) */
243 [1] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 01 - AdapterA-Slot1 (bottom) */
244 [2] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 02 - AdapterB-Slot0 (top) */
245 [3] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 03 - AdapterB-Slot1 (bottom) */
246 [4] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, /* IDSEL 04 - AdapterC-Slot0 (top) */
247 [5] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 05 - AdapterC-Slot1 (bottom) */
248 [6] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 06 - AdapterD-Slot0 (top) */
249 [7] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 07 - AdapterD-Slot1 (bottom) */
250};
251
252static int mtx1_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
253{
254 return mtx1_irqtab[slot][pin];
255}
256
257static struct alchemy_pci_platdata mtx1_pci_pd = {
258 .board_map_irq = mtx1_map_pci_irq,
259 .board_pci_idsel = mtx1_pci_idsel,
260 .pci_cfg_set = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
261 PCI_CONFIG_CH |
262#if defined(__MIPSEB__)
263 PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
264#else
265 0,
266#endif
267};
268
269static struct platform_device mtx1_pci_host = {
270 .dev.platform_data = &mtx1_pci_pd,
271 .name = "alchemy-pci",
272 .id = 0,
273 .num_resources = ARRAY_SIZE(alchemy_pci_host_res),
274 .resource = alchemy_pci_host_res,
275};
276
Bartlomiej Zolnierkiewicz08ebb252013-09-30 15:09:20 +0200277static struct platform_device *mtx1_devs[] __initdata = {
Manuel Lauss7517de32011-08-12 11:39:44 +0200278 &mtx1_pci_host,
Florian Fainelli26c288f2007-10-23 18:55:55 +0200279 &mtx1_gpio_leds,
Florian Fainellif6ed10a2008-01-07 19:00:46 +0100280 &mtx1_wdt,
Yoichi Yuasa95283562008-07-11 22:34:48 +0900281 &mtx1_button,
282 &mtx1_mtd,
Florian Fainelli26c288f2007-10-23 18:55:55 +0200283};
284
Florian Fainellibf3a1eb2011-02-27 19:53:53 +0100285static struct au1000_eth_platform_data mtx1_au1000_eth0_pdata = {
286 .phy_search_highest_addr = 1,
Manuel Lauss8e026912011-11-10 12:06:21 +0000287 .phy1_search_mac0 = 1,
Florian Fainellibf3a1eb2011-02-27 19:53:53 +0100288};
289
Florian Fainelli26c288f2007-10-23 18:55:55 +0200290static int __init mtx1_register_devices(void)
291{
Florian Fainellia1b021d2009-08-01 23:51:20 +0200292 int rc;
293
Manuel Lauss8e026912011-11-10 12:06:21 +0000294 irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
295 irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
296 irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
297 irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
298 irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
299
Florian Fainellibf3a1eb2011-02-27 19:53:53 +0100300 au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata);
301
Florian Fainellia1b021d2009-08-01 23:51:20 +0200302 rc = gpio_request(mtx1_gpio_button[0].gpio,
303 mtx1_gpio_button[0].desc);
304 if (rc < 0) {
305 printk(KERN_INFO "mtx1: failed to request %d\n",
306 mtx1_gpio_button[0].gpio);
307 goto out;
308 }
309 gpio_direction_input(mtx1_gpio_button[0].gpio);
310out:
Florian Fainelli26c288f2007-10-23 18:55:55 +0200311 return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
312}
Florian Fainelli26c288f2007-10-23 18:55:55 +0200313arch_initcall(mtx1_register_devices);