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>
22 * These functions provide the necessary setup for the mv64x60 drivers.
23 * These drivers are unusual in that they work on both the MIPS and PowerPC
24 * architectures. Because of that, the drivers do not support the normal
25 * PowerPC of_platform_bus_type. They support platform_bus_type instead.
29 * Create MPSC platform devices
31 static int __init mv64x60_mpsc_register_shared_pdev(struct device_node *np)
33 struct platform_device *pdev;
35 struct mpsc_shared_pdata pdata;
37 struct device_node *mpscrouting, *mpscintr;
40 ph = of_get_property(np, "mpscrouting", NULL);
41 mpscrouting = of_find_node_by_phandle(*ph);
45 err = of_address_to_resource(mpscrouting, 0, &r[0]);
46 of_node_put(mpscrouting);
50 ph = of_get_property(np, "mpscintr", NULL);
51 mpscintr = of_find_node_by_phandle(*ph);
55 err = of_address_to_resource(mpscintr, 0, &r[1]);
56 of_node_put(mpscintr);
60 memset(&pdata, 0, sizeof(pdata));
62 pdev = platform_device_alloc(MPSC_SHARED_NAME, 0);
66 err = platform_device_add_resources(pdev, r, 2);
70 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
74 err = platform_device_add(pdev);
81 platform_device_put(pdev);
86 static int __init mv64x60_mpsc_device_setup(struct device_node *np, int id)
89 struct mpsc_pdata pdata;
90 struct platform_device *pdev;
91 const unsigned int *prop;
93 struct device_node *sdma, *brg;
97 /* only register the shared platform device the first time through */
98 if (id == 0 && (err = mv64x60_mpsc_register_shared_pdev(np)))
101 memset(r, 0, sizeof(r));
103 err = of_address_to_resource(np, 0, &r[0]);
107 of_irq_to_resource(np, 0, &r[4]);
109 ph = of_get_property(np, "sdma", NULL);
110 sdma = of_find_node_by_phandle(*ph);
114 of_irq_to_resource(sdma, 0, &r[3]);
115 err = of_address_to_resource(sdma, 0, &r[1]);
120 ph = of_get_property(np, "brg", NULL);
121 brg = of_find_node_by_phandle(*ph);
125 err = of_address_to_resource(brg, 0, &r[2]);
130 prop = of_get_property(np, "block-index", NULL);
133 port_number = *(int *)prop;
135 memset(&pdata, 0, sizeof(pdata));
137 pdata.cache_mgmt = 1; /* All current revs need this set */
139 prop = of_get_property(np, "max_idle", NULL);
141 pdata.max_idle = *prop;
143 prop = of_get_property(brg, "current-speed", NULL);
145 pdata.default_baud = *prop;
147 /* Default is 8 bits, no parity, no flow control */
148 pdata.default_bits = 8;
149 pdata.default_parity = 'n';
150 pdata.default_flow = 'n';
152 prop = of_get_property(np, "chr_1", NULL);
154 pdata.chr_1_val = *prop;
156 prop = of_get_property(np, "chr_2", NULL);
158 pdata.chr_2_val = *prop;
160 prop = of_get_property(np, "chr_10", NULL);
162 pdata.chr_10_val = *prop;
164 prop = of_get_property(np, "mpcr", NULL);
166 pdata.mpcr_val = *prop;
168 prop = of_get_property(brg, "bcr", NULL);
170 pdata.bcr_val = *prop;
172 pdata.brg_can_tune = 1; /* All current revs need this set */
174 prop = of_get_property(brg, "clock-src", NULL);
176 pdata.brg_clk_src = *prop;
178 prop = of_get_property(brg, "clock-frequency", NULL);
180 pdata.brg_clk_freq = *prop;
182 pdev = platform_device_alloc(MPSC_CTLR_NAME, port_number);
186 err = platform_device_add_resources(pdev, r, 5);
190 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
194 err = platform_device_add(pdev);
201 platform_device_put(pdev);
206 * Create mv64x60_eth platform devices
208 static int __init eth_register_shared_pdev(struct device_node *np)
210 struct platform_device *pdev;
211 struct resource r[1];
214 np = of_get_parent(np);
218 err = of_address_to_resource(np, 0, &r[0]);
223 pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, 0,
226 return PTR_ERR(pdev);
231 static int __init mv64x60_eth_device_setup(struct device_node *np, int id)
233 struct resource r[1];
234 struct mv643xx_eth_platform_data pdata;
235 struct platform_device *pdev;
236 struct device_node *phy;
242 /* only register the shared platform device the first time through */
243 if (id == 0 && (err = eth_register_shared_pdev(np)))
246 memset(r, 0, sizeof(r));
247 of_irq_to_resource(np, 0, &r[0]);
249 memset(&pdata, 0, sizeof(pdata));
251 prop = of_get_property(np, "block-index", NULL);
254 pdata.port_number = *prop;
256 mac_addr = of_get_mac_address(np);
258 memcpy(pdata.mac_addr, mac_addr, 6);
260 prop = of_get_property(np, "speed", NULL);
264 prop = of_get_property(np, "tx_queue_size", NULL);
266 pdata.tx_queue_size = *prop;
268 prop = of_get_property(np, "rx_queue_size", NULL);
270 pdata.rx_queue_size = *prop;
272 prop = of_get_property(np, "tx_sram_addr", NULL);
274 pdata.tx_sram_addr = *prop;
276 prop = of_get_property(np, "tx_sram_size", NULL);
278 pdata.tx_sram_size = *prop;
280 prop = of_get_property(np, "rx_sram_addr", NULL);
282 pdata.rx_sram_addr = *prop;
284 prop = of_get_property(np, "rx_sram_size", NULL);
286 pdata.rx_sram_size = *prop;
288 ph = of_get_property(np, "phy", NULL);
292 phy = of_find_node_by_phandle(*ph);
296 prop = of_get_property(phy, "reg", NULL);
298 pdata.force_phy_addr = 1;
299 pdata.phy_addr = *prop;
304 pdev = platform_device_alloc(MV643XX_ETH_NAME, pdata.port_number);
308 err = platform_device_add_resources(pdev, r, 1);
312 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
316 err = platform_device_add(pdev);
323 platform_device_put(pdev);
328 * Create mv64x60_i2c platform devices
330 static int __init mv64x60_i2c_device_setup(struct device_node *np, int id)
332 struct resource r[2];
333 struct platform_device *pdev;
334 struct mv64xxx_i2c_pdata pdata;
335 const unsigned int *prop;
338 memset(r, 0, sizeof(r));
340 err = of_address_to_resource(np, 0, &r[0]);
344 of_irq_to_resource(np, 0, &r[1]);
346 memset(&pdata, 0, sizeof(pdata));
348 prop = of_get_property(np, "freq_m", NULL);
351 pdata.freq_m = *prop;
353 prop = of_get_property(np, "freq_n", NULL);
356 pdata.freq_n = *prop;
358 prop = of_get_property(np, "timeout", NULL);
360 pdata.timeout = *prop;
362 pdata.timeout = 1000; /* 1 second */
364 prop = of_get_property(np, "retries", NULL);
366 pdata.retries = *prop;
370 pdev = platform_device_alloc(MV64XXX_I2C_CTLR_NAME, id);
374 err = platform_device_add_resources(pdev, r, 2);
378 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
382 err = platform_device_add(pdev);
389 platform_device_put(pdev);
394 * Create mv64x60_wdt platform devices
396 static int __init mv64x60_wdt_device_setup(struct device_node *np, int id)
399 struct platform_device *pdev;
400 struct mv64x60_wdt_pdata pdata;
401 const unsigned int *prop;
404 err = of_address_to_resource(np, 0, &r);
408 memset(&pdata, 0, sizeof(pdata));
410 prop = of_get_property(np, "timeout", NULL);
413 pdata.timeout = *prop;
415 np = of_get_parent(np);
419 prop = of_get_property(np, "clock-frequency", NULL);
423 pdata.bus_clk = *prop / 1000000; /* wdt driver wants freq in MHz */
425 pdev = platform_device_alloc(MV64x60_WDT_NAME, id);
429 err = platform_device_add_resources(pdev, &r, 1);
433 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
437 err = platform_device_add(pdev);
444 platform_device_put(pdev);
448 static int __init mv64x60_device_setup(void)
450 struct device_node *np = NULL;
455 (np = of_find_compatible_node(np, "serial", "marvell,mpsc")); id++)
456 if ((err = mv64x60_mpsc_device_setup(np, id)))
460 (np = of_find_compatible_node(np, "network",
461 "marvell,mv64x60-eth"));
463 if ((err = mv64x60_eth_device_setup(np, id)))
467 (np = of_find_compatible_node(np, "i2c", "marvell,mv64x60-i2c"));
469 if ((err = mv64x60_i2c_device_setup(np, id)))
472 /* support up to one watchdog timer */
473 np = of_find_compatible_node(np, NULL, "marvell,mv64x60-wdt");
475 if ((err = mv64x60_wdt_device_setup(np, id)))
487 arch_initcall(mv64x60_device_setup);
489 static int __init mv64x60_add_mpsc_console(void)
491 struct device_node *np = NULL;
494 prop = of_get_property(of_chosen, "linux,stdout-path", NULL);
498 np = of_find_node_by_path(prop);
502 if (!of_device_is_compatible(np, "marvell,mpsc"))
505 prop = of_get_property(np, "block-index", NULL);
509 add_preferred_console("ttyMM", *(int *)prop, NULL);
514 console_initcall(mv64x60_add_mpsc_console);