2 * Platform device setup for Marvell mv64360/mv64460 host bridges (Discovery)
4 * Author: Dale Farnsworth <dale@farnsworth.org>
6 * 2007 (c) MontaVista, Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
12 #include <linux/stddef.h>
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/console.h>
16 #include <linux/mv643xx.h>
17 #include <linux/platform_device.h>
18 #include <linux/of_platform.h>
23 * These functions provide the necessary setup for the mv64x60 drivers.
24 * These drivers are unusual in that they work on both the MIPS and PowerPC
25 * architectures. Because of that, the drivers do not support the normal
26 * PowerPC of_platform_bus_type. They support platform_bus_type instead.
29 static struct of_device_id __initdata of_mv64x60_devices
[] = {
30 { .compatible
= "marvell,mv64306-devctrl", },
35 * Create MPSC platform devices
37 static int __init
mv64x60_mpsc_register_shared_pdev(struct device_node
*np
)
39 struct platform_device
*pdev
;
41 struct mpsc_shared_pdata pdata
;
43 struct device_node
*mpscrouting
, *mpscintr
;
46 ph
= of_get_property(np
, "mpscrouting", NULL
);
47 mpscrouting
= of_find_node_by_phandle(*ph
);
51 err
= of_address_to_resource(mpscrouting
, 0, &r
[0]);
52 of_node_put(mpscrouting
);
56 ph
= of_get_property(np
, "mpscintr", NULL
);
57 mpscintr
= of_find_node_by_phandle(*ph
);
61 err
= of_address_to_resource(mpscintr
, 0, &r
[1]);
62 of_node_put(mpscintr
);
66 memset(&pdata
, 0, sizeof(pdata
));
68 pdev
= platform_device_alloc(MPSC_SHARED_NAME
, 0);
72 err
= platform_device_add_resources(pdev
, r
, 2);
76 err
= platform_device_add_data(pdev
, &pdata
, sizeof(pdata
));
80 err
= platform_device_add(pdev
);
87 platform_device_put(pdev
);
92 static int __init
mv64x60_mpsc_device_setup(struct device_node
*np
, int id
)
95 struct mpsc_pdata pdata
;
96 struct platform_device
*pdev
;
97 const unsigned int *prop
;
99 struct device_node
*sdma
, *brg
;
103 /* only register the shared platform device the first time through */
104 if (id
== 0 && (err
= mv64x60_mpsc_register_shared_pdev(np
)))
107 memset(r
, 0, sizeof(r
));
109 err
= of_address_to_resource(np
, 0, &r
[0]);
113 of_irq_to_resource(np
, 0, &r
[4]);
115 ph
= of_get_property(np
, "sdma", NULL
);
116 sdma
= of_find_node_by_phandle(*ph
);
120 of_irq_to_resource(sdma
, 0, &r
[3]);
121 err
= of_address_to_resource(sdma
, 0, &r
[1]);
126 ph
= of_get_property(np
, "brg", NULL
);
127 brg
= of_find_node_by_phandle(*ph
);
131 err
= of_address_to_resource(brg
, 0, &r
[2]);
136 prop
= of_get_property(np
, "cell-index", NULL
);
139 port_number
= *(int *)prop
;
141 memset(&pdata
, 0, sizeof(pdata
));
143 pdata
.cache_mgmt
= 1; /* All current revs need this set */
145 pdata
.max_idle
= 40; /* default */
146 prop
= of_get_property(np
, "max_idle", NULL
);
148 pdata
.max_idle
= *prop
;
150 prop
= of_get_property(brg
, "current-speed", NULL
);
152 pdata
.default_baud
= *prop
;
154 /* Default is 8 bits, no parity, no flow control */
155 pdata
.default_bits
= 8;
156 pdata
.default_parity
= 'n';
157 pdata
.default_flow
= 'n';
159 prop
= of_get_property(np
, "chr_1", NULL
);
161 pdata
.chr_1_val
= *prop
;
163 prop
= of_get_property(np
, "chr_2", NULL
);
165 pdata
.chr_2_val
= *prop
;
167 prop
= of_get_property(np
, "chr_10", NULL
);
169 pdata
.chr_10_val
= *prop
;
171 prop
= of_get_property(np
, "mpcr", NULL
);
173 pdata
.mpcr_val
= *prop
;
175 prop
= of_get_property(brg
, "bcr", NULL
);
177 pdata
.bcr_val
= *prop
;
179 pdata
.brg_can_tune
= 1; /* All current revs need this set */
181 prop
= of_get_property(brg
, "clock-src", NULL
);
183 pdata
.brg_clk_src
= *prop
;
185 prop
= of_get_property(brg
, "clock-frequency", NULL
);
187 pdata
.brg_clk_freq
= *prop
;
189 pdev
= platform_device_alloc(MPSC_CTLR_NAME
, port_number
);
193 err
= platform_device_add_resources(pdev
, r
, 5);
197 err
= platform_device_add_data(pdev
, &pdata
, sizeof(pdata
));
201 err
= platform_device_add(pdev
);
208 platform_device_put(pdev
);
213 * Create mv64x60_eth platform devices
215 static struct platform_device
* __init
mv64x60_eth_register_shared_pdev(
216 struct device_node
*np
, int id
)
218 struct platform_device
*pdev
;
219 struct resource r
[1];
222 err
= of_address_to_resource(np
, 0, &r
[0]);
226 pdev
= platform_device_register_simple(MV643XX_ETH_SHARED_NAME
, id
,
231 static int __init
mv64x60_eth_device_setup(struct device_node
*np
, int id
,
232 struct platform_device
*shared_pdev
)
234 struct resource r
[1];
235 struct mv643xx_eth_platform_data pdata
;
236 struct platform_device
*pdev
;
237 struct device_node
*phy
;
243 memset(r
, 0, sizeof(r
));
244 of_irq_to_resource(np
, 0, &r
[0]);
246 memset(&pdata
, 0, sizeof(pdata
));
248 pdata
.shared
= shared_pdev
;
250 prop
= of_get_property(np
, "reg", NULL
);
253 pdata
.port_number
= *prop
;
255 mac_addr
= of_get_mac_address(np
);
257 memcpy(pdata
.mac_addr
, mac_addr
, 6);
259 prop
= of_get_property(np
, "speed", NULL
);
263 prop
= of_get_property(np
, "tx_queue_size", NULL
);
265 pdata
.tx_queue_size
= *prop
;
267 prop
= of_get_property(np
, "rx_queue_size", NULL
);
269 pdata
.rx_queue_size
= *prop
;
271 prop
= of_get_property(np
, "tx_sram_addr", NULL
);
273 pdata
.tx_sram_addr
= *prop
;
275 prop
= of_get_property(np
, "tx_sram_size", NULL
);
277 pdata
.tx_sram_size
= *prop
;
279 prop
= of_get_property(np
, "rx_sram_addr", NULL
);
281 pdata
.rx_sram_addr
= *prop
;
283 prop
= of_get_property(np
, "rx_sram_size", NULL
);
285 pdata
.rx_sram_size
= *prop
;
287 ph
= of_get_property(np
, "phy", NULL
);
291 phy
= of_find_node_by_phandle(*ph
);
295 prop
= of_get_property(phy
, "reg", NULL
);
297 pdata
.force_phy_addr
= 1;
298 pdata
.phy_addr
= *prop
;
303 pdev
= platform_device_alloc(MV643XX_ETH_NAME
, id
);
307 err
= platform_device_add_resources(pdev
, r
, 1);
311 err
= platform_device_add_data(pdev
, &pdata
, sizeof(pdata
));
315 err
= platform_device_add(pdev
);
322 platform_device_put(pdev
);
327 * Create mv64x60_i2c platform devices
329 static int __init
mv64x60_i2c_device_setup(struct device_node
*np
, int id
)
331 struct resource r
[2];
332 struct platform_device
*pdev
;
333 struct mv64xxx_i2c_pdata pdata
;
334 const unsigned int *prop
;
337 memset(r
, 0, sizeof(r
));
339 err
= of_address_to_resource(np
, 0, &r
[0]);
343 of_irq_to_resource(np
, 0, &r
[1]);
345 memset(&pdata
, 0, sizeof(pdata
));
347 pdata
.freq_m
= 8; /* default */
348 prop
= of_get_property(np
, "freq_m", NULL
);
350 pdata
.freq_m
= *prop
;
352 pdata
.freq_m
= 3; /* default */
353 prop
= of_get_property(np
, "freq_n", NULL
);
355 pdata
.freq_n
= *prop
;
357 pdata
.timeout
= 1000; /* default: 1 second */
359 pdev
= platform_device_alloc(MV64XXX_I2C_CTLR_NAME
, id
);
363 err
= platform_device_add_resources(pdev
, r
, 2);
367 err
= platform_device_add_data(pdev
, &pdata
, sizeof(pdata
));
371 err
= platform_device_add(pdev
);
378 platform_device_put(pdev
);
383 * Create mv64x60_wdt platform devices
385 static int __init
mv64x60_wdt_device_setup(struct device_node
*np
, int id
)
388 struct platform_device
*pdev
;
389 struct mv64x60_wdt_pdata pdata
;
390 const unsigned int *prop
;
393 err
= of_address_to_resource(np
, 0, &r
);
397 memset(&pdata
, 0, sizeof(pdata
));
399 pdata
.timeout
= 10; /* Default: 10 seconds */
401 np
= of_get_parent(np
);
405 prop
= of_get_property(np
, "clock-frequency", NULL
);
409 pdata
.bus_clk
= *prop
/ 1000000; /* wdt driver wants freq in MHz */
411 pdev
= platform_device_alloc(MV64x60_WDT_NAME
, id
);
415 err
= platform_device_add_resources(pdev
, &r
, 1);
419 err
= platform_device_add_data(pdev
, &pdata
, sizeof(pdata
));
423 err
= platform_device_add(pdev
);
430 platform_device_put(pdev
);
434 static int __init
mv64x60_device_setup(void)
436 struct device_node
*np
, *np2
;
437 struct platform_device
*pdev
;
442 for_each_compatible_node(np
, "serial", "marvell,mv64360-mpsc") {
443 err
= mv64x60_mpsc_device_setup(np
, id
++);
445 printk(KERN_ERR
"Failed to initialize MV64x60 "
446 "serial device %s: error %d.\n",
452 for_each_compatible_node(np
, NULL
, "marvell,mv64360-eth-group") {
453 pdev
= mv64x60_eth_register_shared_pdev(np
, id
++);
456 printk(KERN_ERR
"Failed to initialize MV64x60 "
457 "network block %s: error %d.\n",
461 for_each_child_of_node(np
, np2
) {
462 if (!of_device_is_compatible(np2
,
463 "marvell,mv64360-eth"))
465 err
= mv64x60_eth_device_setup(np2
, id2
++, pdev
);
467 printk(KERN_ERR
"Failed to initialize "
468 "MV64x60 network device %s: "
470 np2
->full_name
, err
);
475 for_each_compatible_node(np
, "i2c", "marvell,mv64360-i2c") {
476 err
= mv64x60_i2c_device_setup(np
, id
++);
478 printk(KERN_ERR
"Failed to initialize MV64x60 I2C "
479 "bus %s: error %d.\n",
483 /* support up to one watchdog timer */
484 np
= of_find_compatible_node(np
, NULL
, "marvell,mv64360-wdt");
486 if ((err
= mv64x60_wdt_device_setup(np
, id
)))
487 printk(KERN_ERR
"Failed to initialize MV64x60 "
488 "Watchdog %s: error %d.\n",
493 /* Now add every node that is on the device bus */
494 for_each_compatible_node(np
, NULL
, "marvell,mv64360")
495 of_platform_bus_probe(np
, of_mv64x60_devices
, NULL
);
499 arch_initcall(mv64x60_device_setup
);
501 static int __init
mv64x60_add_mpsc_console(void)
503 struct device_node
*np
= NULL
;
506 prop
= of_get_property(of_chosen
, "linux,stdout-path", NULL
);
510 np
= of_find_node_by_path(prop
);
514 if (!of_device_is_compatible(np
, "marvell,mv64360-mpsc"))
517 prop
= of_get_property(np
, "cell-index", NULL
);
521 add_preferred_console("ttyMM", *(int *)prop
, NULL
);
526 console_initcall(mv64x60_add_mpsc_console
);