2 * Platform device setup for Marvell mv64360/mv64460 host bridges (Discovery)
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>
19 #include <linux/of_net.h>
20 #include <linux/dma-mapping.h>
24 /* These functions provide the necessary setup for the mv64x60 drivers. */
26 static const struct of_device_id of_mv64x60_devices[] __initconst = {
27 { .compatible = "marvell,mv64306-devctrl", },
32 * Create MPSC platform devices
34 static int __init mv64x60_mpsc_register_shared_pdev(struct device_node *np)
36 struct platform_device *pdev;
38 struct mpsc_shared_pdata pdata;
40 struct device_node *mpscrouting, *mpscintr;
43 ph = of_get_property(np, "mpscrouting", NULL);
44 mpscrouting = of_find_node_by_phandle(*ph);
48 err = of_address_to_resource(mpscrouting, 0, &r[0]);
49 of_node_put(mpscrouting);
53 ph = of_get_property(np, "mpscintr", NULL);
54 mpscintr = of_find_node_by_phandle(*ph);
58 err = of_address_to_resource(mpscintr, 0, &r[1]);
59 of_node_put(mpscintr);
63 memset(&pdata, 0, sizeof(pdata));
65 pdev = platform_device_alloc(MPSC_SHARED_NAME, 0);
69 err = platform_device_add_resources(pdev, r, 2);
73 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
77 err = platform_device_add(pdev);
84 platform_device_put(pdev);
89 static int __init mv64x60_mpsc_device_setup(struct device_node *np, int id)
92 struct mpsc_pdata pdata;
93 struct platform_device *pdev;
94 const unsigned int *prop;
96 struct device_node *sdma, *brg;
100 /* only register the shared platform device the first time through */
101 if (id == 0 && (err = mv64x60_mpsc_register_shared_pdev(np)))
104 memset(r, 0, sizeof(r));
106 err = of_address_to_resource(np, 0, &r[0]);
110 of_irq_to_resource(np, 0, &r[4]);
112 ph = of_get_property(np, "sdma", NULL);
113 sdma = of_find_node_by_phandle(*ph);
117 of_irq_to_resource(sdma, 0, &r[3]);
118 err = of_address_to_resource(sdma, 0, &r[1]);
123 ph = of_get_property(np, "brg", NULL);
124 brg = of_find_node_by_phandle(*ph);
128 err = of_address_to_resource(brg, 0, &r[2]);
133 prop = of_get_property(np, "cell-index", NULL);
136 port_number = *(int *)prop;
138 memset(&pdata, 0, sizeof(pdata));
140 pdata.cache_mgmt = 1; /* All current revs need this set */
142 pdata.max_idle = 40; /* default */
143 prop = of_get_property(np, "max_idle", NULL);
145 pdata.max_idle = *prop;
147 prop = of_get_property(brg, "current-speed", NULL);
149 pdata.default_baud = *prop;
151 /* Default is 8 bits, no parity, no flow control */
152 pdata.default_bits = 8;
153 pdata.default_parity = 'n';
154 pdata.default_flow = 'n';
156 prop = of_get_property(np, "chr_1", NULL);
158 pdata.chr_1_val = *prop;
160 prop = of_get_property(np, "chr_2", NULL);
162 pdata.chr_2_val = *prop;
164 prop = of_get_property(np, "chr_10", NULL);
166 pdata.chr_10_val = *prop;
168 prop = of_get_property(np, "mpcr", NULL);
170 pdata.mpcr_val = *prop;
172 prop = of_get_property(brg, "bcr", NULL);
174 pdata.bcr_val = *prop;
176 pdata.brg_can_tune = 1; /* All current revs need this set */
178 prop = of_get_property(brg, "clock-src", NULL);
180 pdata.brg_clk_src = *prop;
182 prop = of_get_property(brg, "clock-frequency", NULL);
184 pdata.brg_clk_freq = *prop;
186 pdev = platform_device_alloc(MPSC_CTLR_NAME, port_number);
189 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
191 err = platform_device_add_resources(pdev, r, 5);
195 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
199 err = platform_device_add(pdev);
206 platform_device_put(pdev);
211 * Create mv64x60_eth platform devices
213 static struct platform_device * __init mv64x60_eth_register_shared_pdev(
214 struct device_node *np, int id)
216 struct platform_device *pdev;
217 struct resource r[2];
220 err = of_address_to_resource(np, 0, &r[0]);
224 /* register an orion mdio bus driver */
225 r[1].start = r[0].start + 0x4;
226 r[1].end = r[0].start + 0x84 - 1;
227 r[1].flags = IORESOURCE_MEM;
230 pdev = platform_device_register_simple("orion-mdio", -1, &r[1], 1);
235 pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, id,
241 static int __init mv64x60_eth_device_setup(struct device_node *np, int id,
242 struct platform_device *shared_pdev)
244 struct resource r[1];
245 struct mv643xx_eth_platform_data pdata;
246 struct platform_device *pdev;
247 struct device_node *phy;
253 memset(r, 0, sizeof(r));
254 of_irq_to_resource(np, 0, &r[0]);
256 memset(&pdata, 0, sizeof(pdata));
258 pdata.shared = shared_pdev;
260 prop = of_get_property(np, "reg", NULL);
263 pdata.port_number = *prop;
265 mac_addr = of_get_mac_address(np);
267 memcpy(pdata.mac_addr, mac_addr, 6);
269 prop = of_get_property(np, "speed", NULL);
273 prop = of_get_property(np, "tx_queue_size", NULL);
275 pdata.tx_queue_size = *prop;
277 prop = of_get_property(np, "rx_queue_size", NULL);
279 pdata.rx_queue_size = *prop;
281 prop = of_get_property(np, "tx_sram_addr", NULL);
283 pdata.tx_sram_addr = *prop;
285 prop = of_get_property(np, "tx_sram_size", NULL);
287 pdata.tx_sram_size = *prop;
289 prop = of_get_property(np, "rx_sram_addr", NULL);
291 pdata.rx_sram_addr = *prop;
293 prop = of_get_property(np, "rx_sram_size", NULL);
295 pdata.rx_sram_size = *prop;
297 ph = of_get_property(np, "phy", NULL);
301 phy = of_find_node_by_phandle(*ph);
305 prop = of_get_property(phy, "reg", NULL);
307 pdata.phy_addr = MV643XX_ETH_PHY_ADDR(*prop);
311 pdev = platform_device_alloc(MV643XX_ETH_NAME, id);
315 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
316 err = platform_device_add_resources(pdev, r, 1);
320 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
324 err = platform_device_add(pdev);
331 platform_device_put(pdev);
336 * Create mv64x60_i2c platform devices
338 static int __init mv64x60_i2c_device_setup(struct device_node *np, int id)
340 struct resource r[2];
341 struct platform_device *pdev;
342 struct mv64xxx_i2c_pdata pdata;
343 const unsigned int *prop;
346 memset(r, 0, sizeof(r));
348 err = of_address_to_resource(np, 0, &r[0]);
352 of_irq_to_resource(np, 0, &r[1]);
354 memset(&pdata, 0, sizeof(pdata));
356 pdata.freq_m = 8; /* default */
357 prop = of_get_property(np, "freq_m", NULL);
359 pdata.freq_m = *prop;
361 pdata.freq_n = 3; /* default */
362 prop = of_get_property(np, "freq_n", NULL);
364 pdata.freq_n = *prop;
366 pdata.timeout = 1000; /* default: 1 second */
368 pdev = platform_device_alloc(MV64XXX_I2C_CTLR_NAME, id);
372 err = platform_device_add_resources(pdev, r, 2);
376 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
380 err = platform_device_add(pdev);
387 platform_device_put(pdev);
392 * Create mv64x60_wdt platform devices
394 static int __init mv64x60_wdt_device_setup(struct device_node *np, int id)
397 struct platform_device *pdev;
398 struct mv64x60_wdt_pdata pdata;
399 const unsigned int *prop;
402 err = of_address_to_resource(np, 0, &r);
406 memset(&pdata, 0, sizeof(pdata));
408 pdata.timeout = 10; /* Default: 10 seconds */
410 np = of_get_parent(np);
414 prop = of_get_property(np, "clock-frequency", NULL);
418 pdata.bus_clk = *prop / 1000000; /* wdt driver wants freq in MHz */
420 pdev = platform_device_alloc(MV64x60_WDT_NAME, id);
424 err = platform_device_add_resources(pdev, &r, 1);
428 err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
432 err = platform_device_add(pdev);
439 platform_device_put(pdev);
443 static int __init mv64x60_device_setup(void)
445 struct device_node *np, *np2;
446 struct platform_device *pdev;
451 for_each_compatible_node(np, NULL, "marvell,mv64360-mpsc") {
452 err = mv64x60_mpsc_device_setup(np, id++);
454 printk(KERN_ERR "Failed to initialize MV64x60 "
455 "serial device %s: error %d.\n",
461 for_each_compatible_node(np, NULL, "marvell,mv64360-eth-group") {
462 pdev = mv64x60_eth_register_shared_pdev(np, id++);
465 printk(KERN_ERR "Failed to initialize MV64x60 "
466 "network block %s: error %d.\n",
470 for_each_child_of_node(np, np2) {
471 if (!of_device_is_compatible(np2,
472 "marvell,mv64360-eth"))
474 err = mv64x60_eth_device_setup(np2, id2++, pdev);
476 printk(KERN_ERR "Failed to initialize "
477 "MV64x60 network device %s: "
479 np2->full_name, err);
484 for_each_compatible_node(np, "i2c", "marvell,mv64360-i2c") {
485 err = mv64x60_i2c_device_setup(np, id++);
487 printk(KERN_ERR "Failed to initialize MV64x60 I2C "
488 "bus %s: error %d.\n",
492 /* support up to one watchdog timer */
493 np = of_find_compatible_node(np, NULL, "marvell,mv64360-wdt");
495 if ((err = mv64x60_wdt_device_setup(np, id)))
496 printk(KERN_ERR "Failed to initialize MV64x60 "
497 "Watchdog %s: error %d.\n",
502 /* Now add every node that is on the device bus */
503 for_each_compatible_node(np, NULL, "marvell,mv64360")
504 of_platform_bus_probe(np, of_mv64x60_devices, NULL);
508 arch_initcall(mv64x60_device_setup);
510 static int __init mv64x60_add_mpsc_console(void)
512 struct device_node *np = NULL;
515 prop = of_get_property(of_chosen, "linux,stdout-path", NULL);
519 np = of_find_node_by_path(prop);
523 if (!of_device_is_compatible(np, "marvell,mv64360-mpsc"))
526 prop = of_get_property(np, "cell-index", NULL);
530 add_preferred_console("ttyMM", *(int *)prop, NULL);
535 console_initcall(mv64x60_add_mpsc_console);