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);