2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2004-2011 Cavium Networks
7 * Copyright (C) 2008 Wind River Systems
10 #include <linux/init.h>
11 #include <linux/irq.h>
12 #include <linux/i2c.h>
13 #include <linux/usb.h>
14 #include <linux/dma-mapping.h>
15 #include <linux/module.h>
16 #include <linux/slab.h>
17 #include <linux/platform_device.h>
18 #include <linux/of_platform.h>
19 #include <linux/of_fdt.h>
20 #include <linux/libfdt.h>
22 #include <asm/octeon/octeon.h>
23 #include <asm/octeon/cvmx-rnm-defs.h>
24 #include <asm/octeon/cvmx-helper.h>
25 #include <asm/octeon/cvmx-helper-board.h>
27 /* Octeon Random Number Generator. */
28 static int __init
octeon_rng_device_init(void)
30 struct platform_device
*pd
;
33 struct resource rng_resources
[] = {
35 .flags
= IORESOURCE_MEM
,
36 .start
= XKPHYS_TO_PHYS(CVMX_RNM_CTL_STATUS
),
37 .end
= XKPHYS_TO_PHYS(CVMX_RNM_CTL_STATUS
) + 0xf
39 .flags
= IORESOURCE_MEM
,
40 .start
= cvmx_build_io_address(8, 0),
41 .end
= cvmx_build_io_address(8, 0) + 0x7
45 pd
= platform_device_alloc("octeon_rng", -1);
51 ret
= platform_device_add_resources(pd
, rng_resources
,
52 ARRAY_SIZE(rng_resources
));
56 ret
= platform_device_add(pd
);
62 platform_device_put(pd
);
67 device_initcall(octeon_rng_device_init
);
71 static int __init
octeon_ehci_device_init(void)
73 struct platform_device
*pd
;
76 struct resource usb_resources
[] = {
78 .flags
= IORESOURCE_MEM
,
80 .flags
= IORESOURCE_IRQ
,
84 /* Only Octeon2 has ehci/ohci */
85 if (!OCTEON_IS_MODEL(OCTEON_CN63XX
))
88 if (octeon_is_simulation() || usb_disabled())
89 return 0; /* No USB in the simulator. */
91 pd
= platform_device_alloc("octeon-ehci", 0);
97 usb_resources
[0].start
= 0x00016F0000000000ULL
;
98 usb_resources
[0].end
= usb_resources
[0].start
+ 0x100;
100 usb_resources
[1].start
= OCTEON_IRQ_USB0
;
101 usb_resources
[1].end
= OCTEON_IRQ_USB0
;
103 ret
= platform_device_add_resources(pd
, usb_resources
,
104 ARRAY_SIZE(usb_resources
));
108 ret
= platform_device_add(pd
);
114 platform_device_put(pd
);
118 device_initcall(octeon_ehci_device_init
);
120 static int __init
octeon_ohci_device_init(void)
122 struct platform_device
*pd
;
125 struct resource usb_resources
[] = {
127 .flags
= IORESOURCE_MEM
,
129 .flags
= IORESOURCE_IRQ
,
133 /* Only Octeon2 has ehci/ohci */
134 if (!OCTEON_IS_MODEL(OCTEON_CN63XX
))
137 if (octeon_is_simulation() || usb_disabled())
138 return 0; /* No USB in the simulator. */
140 pd
= platform_device_alloc("octeon-ohci", 0);
146 usb_resources
[0].start
= 0x00016F0000000400ULL
;
147 usb_resources
[0].end
= usb_resources
[0].start
+ 0x100;
149 usb_resources
[1].start
= OCTEON_IRQ_USB0
;
150 usb_resources
[1].end
= OCTEON_IRQ_USB0
;
152 ret
= platform_device_add_resources(pd
, usb_resources
,
153 ARRAY_SIZE(usb_resources
));
157 ret
= platform_device_add(pd
);
163 platform_device_put(pd
);
167 device_initcall(octeon_ohci_device_init
);
169 #endif /* CONFIG_USB */
171 static struct of_device_id __initdata octeon_ids
[] = {
172 { .compatible
= "simple-bus", },
173 { .compatible
= "cavium,octeon-6335-uctl", },
174 { .compatible
= "cavium,octeon-3860-bootbus", },
175 { .compatible
= "cavium,mdio-mux", },
176 { .compatible
= "gpio-leds", },
180 static bool __init
octeon_has_88e1145(void)
182 return !OCTEON_IS_MODEL(OCTEON_CN52XX
) &&
183 !OCTEON_IS_MODEL(OCTEON_CN6XXX
) &&
184 !OCTEON_IS_MODEL(OCTEON_CN56XX
);
187 static void __init
octeon_fdt_set_phy(int eth
, int phy_addr
)
189 const __be32
*phy_handle
;
190 const __be32
*alt_phy_handle
;
199 phy_handle
= fdt_getprop(initial_boot_params
, eth
, "phy-handle", NULL
);
203 phandle
= be32_to_cpup(phy_handle
);
204 phy
= fdt_node_offset_by_phandle(initial_boot_params
, phandle
);
206 alt_phy_handle
= fdt_getprop(initial_boot_params
, eth
, "cavium,alt-phy-handle", NULL
);
207 if (alt_phy_handle
) {
208 u32 alt_phandle
= be32_to_cpup(alt_phy_handle
);
209 alt_phy
= fdt_node_offset_by_phandle(initial_boot_params
, alt_phandle
);
214 if (phy_addr
< 0 || phy
< 0) {
215 /* Delete the PHY things */
216 fdt_nop_property(initial_boot_params
, eth
, "phy-handle");
217 /* This one may fail */
218 fdt_nop_property(initial_boot_params
, eth
, "cavium,alt-phy-handle");
220 fdt_nop_node(initial_boot_params
, phy
);
222 fdt_nop_node(initial_boot_params
, alt_phy
);
226 if (phy_addr
>= 256 && alt_phy
> 0) {
227 const struct fdt_property
*phy_prop
;
228 struct fdt_property
*alt_prop
;
231 /* Use the alt phy node instead.*/
232 phy_prop
= fdt_get_property(initial_boot_params
, eth
, "phy-handle", NULL
);
233 phy_handle_name
= phy_prop
->nameoff
;
234 fdt_nop_node(initial_boot_params
, phy
);
235 fdt_nop_property(initial_boot_params
, eth
, "phy-handle");
236 alt_prop
= fdt_get_property_w(initial_boot_params
, eth
, "cavium,alt-phy-handle", NULL
);
237 alt_prop
->nameoff
= phy_handle_name
;
243 if (octeon_has_88e1145()) {
244 fdt_nop_property(initial_boot_params
, phy
, "marvell,reg-init");
245 memset(new_name
, 0, sizeof(new_name
));
246 strcpy(new_name
, "marvell,88e1145");
247 p
= fdt_getprop(initial_boot_params
, phy
, "compatible",
249 if (p
&& current_len
>= strlen(new_name
))
250 fdt_setprop_inplace(initial_boot_params
, phy
,
251 "compatible", new_name
, current_len
);
254 reg
= fdt_getprop(initial_boot_params
, phy
, "reg", NULL
);
255 if (phy_addr
== be32_to_cpup(reg
))
258 fdt_setprop_inplace_cell(initial_boot_params
, phy
, "reg", phy_addr
);
260 snprintf(new_name
, sizeof(new_name
), "ethernet-phy@%x", phy_addr
);
262 p
= fdt_get_name(initial_boot_params
, phy
, ¤t_len
);
263 if (p
&& current_len
== strlen(new_name
))
264 fdt_set_name(initial_boot_params
, phy
, new_name
);
266 pr_err("Error: could not rename ethernet phy: <%s>", p
);
269 static void __init
octeon_fdt_set_mac_addr(int n
, u64
*pmac
)
275 new_mac
[0] = (mac
>> 40) & 0xff;
276 new_mac
[1] = (mac
>> 32) & 0xff;
277 new_mac
[2] = (mac
>> 24) & 0xff;
278 new_mac
[3] = (mac
>> 16) & 0xff;
279 new_mac
[4] = (mac
>> 8) & 0xff;
280 new_mac
[5] = mac
& 0xff;
282 r
= fdt_setprop_inplace(initial_boot_params
, n
, "local-mac-address",
283 new_mac
, sizeof(new_mac
));
286 pr_err("Setting \"local-mac-address\" failed %d", r
);
292 static void __init
octeon_fdt_rm_ethernet(int node
)
294 const __be32
*phy_handle
;
296 phy_handle
= fdt_getprop(initial_boot_params
, node
, "phy-handle", NULL
);
298 u32 ph
= be32_to_cpup(phy_handle
);
299 int p
= fdt_node_offset_by_phandle(initial_boot_params
, ph
);
301 fdt_nop_node(initial_boot_params
, p
);
303 fdt_nop_node(initial_boot_params
, node
);
306 static void __init
octeon_fdt_pip_port(int iface
, int i
, int p
, int max
, u64
*pmac
)
308 char name_buffer
[20];
313 snprintf(name_buffer
, sizeof(name_buffer
), "ethernet@%x", p
);
314 eth
= fdt_subnode_offset(initial_boot_params
, iface
, name_buffer
);
318 pr_debug("Deleting port %x:%x\n", i
, p
);
319 octeon_fdt_rm_ethernet(eth
);
322 if (OCTEON_IS_MODEL(OCTEON_CN68XX
))
323 ipd_port
= (0x100 * i
) + (0x10 * p
) + 0x800;
325 ipd_port
= 16 * i
+ p
;
327 phy_addr
= cvmx_helper_board_get_mii_address(ipd_port
);
328 octeon_fdt_set_phy(eth
, phy_addr
);
329 octeon_fdt_set_mac_addr(eth
, pmac
);
332 static void __init
octeon_fdt_pip_iface(int pip
, int idx
, u64
*pmac
)
334 char name_buffer
[20];
339 if (cvmx_helper_interface_enumerate(idx
) == 0)
340 count
= cvmx_helper_ports_on_interface(idx
);
342 snprintf(name_buffer
, sizeof(name_buffer
), "interface@%d", idx
);
343 iface
= fdt_subnode_offset(initial_boot_params
, pip
, name_buffer
);
347 for (p
= 0; p
< 16; p
++)
348 octeon_fdt_pip_port(iface
, idx
, p
, count
- 1, pmac
);
351 int __init
octeon_prune_device_tree(void)
353 int i
, max_port
, uart_mask
;
354 const char *pip_path
;
355 const char *alias_prop
;
356 char name_buffer
[20];
360 if (fdt_check_header(initial_boot_params
))
361 panic("Corrupt Device Tree.");
363 aliases
= fdt_path_offset(initial_boot_params
, "/aliases");
365 pr_err("Error: No /aliases node in device tree.");
371 ((octeon_bootinfo
->mac_addr_base
[0] & 0xffull
)) << 40 |
372 ((octeon_bootinfo
->mac_addr_base
[1] & 0xffull
)) << 32 |
373 ((octeon_bootinfo
->mac_addr_base
[2] & 0xffull
)) << 24 |
374 ((octeon_bootinfo
->mac_addr_base
[3] & 0xffull
)) << 16 |
375 ((octeon_bootinfo
->mac_addr_base
[4] & 0xffull
)) << 8 |
376 (octeon_bootinfo
->mac_addr_base
[5] & 0xffull
);
378 if (OCTEON_IS_MODEL(OCTEON_CN52XX
) || OCTEON_IS_MODEL(OCTEON_CN63XX
))
380 else if (OCTEON_IS_MODEL(OCTEON_CN56XX
) || OCTEON_IS_MODEL(OCTEON_CN68XX
))
385 if (octeon_bootinfo
->board_type
== CVMX_BOARD_TYPE_NIC10E
)
388 for (i
= 0; i
< 2; i
++) {
390 snprintf(name_buffer
, sizeof(name_buffer
),
392 alias_prop
= fdt_getprop(initial_boot_params
, aliases
,
395 mgmt
= fdt_path_offset(initial_boot_params
, alias_prop
);
399 pr_debug("Deleting mix%d\n", i
);
400 octeon_fdt_rm_ethernet(mgmt
);
401 fdt_nop_property(initial_boot_params
, aliases
,
404 int phy_addr
= cvmx_helper_board_get_mii_address(CVMX_HELPER_BOARD_MGMT_IPD_PORT
+ i
);
405 octeon_fdt_set_phy(mgmt
, phy_addr
);
406 octeon_fdt_set_mac_addr(mgmt
, &mac_addr_base
);
411 pip_path
= fdt_getprop(initial_boot_params
, aliases
, "pip", NULL
);
413 int pip
= fdt_path_offset(initial_boot_params
, pip_path
);
415 for (i
= 0; i
<= 4; i
++)
416 octeon_fdt_pip_iface(pip
, i
, &mac_addr_base
);
420 if (OCTEON_IS_MODEL(OCTEON_CN52XX
) ||
421 OCTEON_IS_MODEL(OCTEON_CN63XX
) ||
422 OCTEON_IS_MODEL(OCTEON_CN68XX
) ||
423 OCTEON_IS_MODEL(OCTEON_CN56XX
))
428 for (i
= 0; i
< 2; i
++) {
430 snprintf(name_buffer
, sizeof(name_buffer
),
432 alias_prop
= fdt_getprop(initial_boot_params
, aliases
,
436 i2c
= fdt_path_offset(initial_boot_params
, alias_prop
);
440 pr_debug("Deleting twsi%d\n", i
);
441 fdt_nop_node(initial_boot_params
, i2c
);
442 fdt_nop_property(initial_boot_params
, aliases
,
449 if (OCTEON_IS_MODEL(OCTEON_CN68XX
))
451 else if (OCTEON_IS_MODEL(OCTEON_CN52XX
) ||
452 OCTEON_IS_MODEL(OCTEON_CN63XX
) ||
453 OCTEON_IS_MODEL(OCTEON_CN56XX
))
458 for (i
= 0; i
< 2; i
++) {
460 snprintf(name_buffer
, sizeof(name_buffer
),
462 alias_prop
= fdt_getprop(initial_boot_params
, aliases
,
466 i2c
= fdt_path_offset(initial_boot_params
, alias_prop
);
470 pr_debug("Deleting smi%d\n", i
);
471 fdt_nop_node(initial_boot_params
, i2c
);
472 fdt_nop_property(initial_boot_params
, aliases
,
481 /* Right now CN52XX is the only chip with a third uart */
482 if (OCTEON_IS_MODEL(OCTEON_CN52XX
))
483 uart_mask
|= 4; /* uart2 */
485 for (i
= 0; i
< 3; i
++) {
487 snprintf(name_buffer
, sizeof(name_buffer
),
489 alias_prop
= fdt_getprop(initial_boot_params
, aliases
,
493 uart
= fdt_path_offset(initial_boot_params
, alias_prop
);
494 if (uart_mask
& (1 << i
)) {
497 f
= cpu_to_be32(octeon_get_io_clock_rate());
498 fdt_setprop_inplace(initial_boot_params
,
499 uart
, "clock-frequency",
503 pr_debug("Deleting uart%d\n", i
);
504 fdt_nop_node(initial_boot_params
, uart
);
505 fdt_nop_property(initial_boot_params
, aliases
,
511 alias_prop
= fdt_getprop(initial_boot_params
, aliases
,
514 union cvmx_mio_boot_reg_cfgx mio_boot_reg_cfg
;
515 unsigned long base_ptr
, region_base
, region_size
;
516 unsigned long region1_base
= 0;
517 unsigned long region1_size
= 0;
519 bool is_16bit
= false;
520 bool is_true_ide
= false;
525 int cf
= fdt_path_offset(initial_boot_params
, alias_prop
);
527 if (octeon_bootinfo
->major_version
== 1
528 && octeon_bootinfo
->minor_version
>= 1) {
529 if (octeon_bootinfo
->compact_flash_common_base_addr
)
530 base_ptr
= octeon_bootinfo
->compact_flash_common_base_addr
;
532 base_ptr
= 0x1d000800;
538 /* Find CS0 region. */
539 for (cs
= 0; cs
< 8; cs
++) {
540 mio_boot_reg_cfg
.u64
= cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(cs
));
541 region_base
= mio_boot_reg_cfg
.s
.base
<< 16;
542 region_size
= (mio_boot_reg_cfg
.s
.size
+ 1) << 16;
543 if (mio_boot_reg_cfg
.s
.en
&& base_ptr
>= region_base
544 && base_ptr
< region_base
+ region_size
) {
545 is_16bit
= mio_boot_reg_cfg
.s
.width
;
550 /* cs and cs + 1 are CS0 and CS1, both must be less than 8. */
554 if (!(base_ptr
& 0xfffful
)) {
556 * Boot loader signals availability of DMA (true_ide
557 * mode) by setting low order bits of base_ptr to
561 /* Asume that CS1 immediately follows. */
562 mio_boot_reg_cfg
.u64
=
563 cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(cs
+ 1));
564 region1_base
= mio_boot_reg_cfg
.s
.base
<< 16;
565 region1_size
= (mio_boot_reg_cfg
.s
.size
+ 1) << 16;
566 if (!mio_boot_reg_cfg
.s
.en
)
571 fdt_nop_property(initial_boot_params
, cf
, "cavium,true-ide");
572 fdt_nop_property(initial_boot_params
, cf
, "cavium,dma-engine-handle");
574 __be32 width
= cpu_to_be32(8);
575 fdt_setprop_inplace(initial_boot_params
, cf
,
576 "cavium,bus-width", &width
, sizeof(width
));
579 new_reg
[0] = cpu_to_be32(cs
);
580 new_reg
[1] = cpu_to_be32(0);
581 new_reg
[2] = cpu_to_be32(0x10000);
582 new_reg
[3] = cpu_to_be32(cs
+ 1);
583 new_reg
[4] = cpu_to_be32(0);
584 new_reg
[5] = cpu_to_be32(0x10000);
585 fdt_setprop_inplace(initial_boot_params
, cf
,
586 "reg", new_reg
, sizeof(new_reg
));
588 bootbus
= fdt_parent_offset(initial_boot_params
, cf
);
591 ranges
= fdt_getprop_w(initial_boot_params
, bootbus
, "ranges", &len
);
592 if (!ranges
|| len
< (5 * 8 * sizeof(__be32
)))
595 ranges
[(cs
* 5) + 2] = cpu_to_be32(region_base
>> 32);
596 ranges
[(cs
* 5) + 3] = cpu_to_be32(region_base
& 0xffffffff);
597 ranges
[(cs
* 5) + 4] = cpu_to_be32(region_size
);
600 ranges
[(cs
* 5) + 2] = cpu_to_be32(region1_base
>> 32);
601 ranges
[(cs
* 5) + 3] = cpu_to_be32(region1_base
& 0xffffffff);
602 ranges
[(cs
* 5) + 4] = cpu_to_be32(region1_size
);
606 fdt_nop_node(initial_boot_params
, cf
);
613 alias_prop
= fdt_getprop(initial_boot_params
, aliases
,
616 union cvmx_mio_boot_reg_cfgx mio_boot_reg_cfg
;
617 unsigned long base_ptr
, region_base
, region_size
;
622 int led
= fdt_path_offset(initial_boot_params
, alias_prop
);
624 base_ptr
= octeon_bootinfo
->led_display_base_addr
;
627 /* Find CS0 region. */
628 for (cs
= 0; cs
< 8; cs
++) {
629 mio_boot_reg_cfg
.u64
= cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(cs
));
630 region_base
= mio_boot_reg_cfg
.s
.base
<< 16;
631 region_size
= (mio_boot_reg_cfg
.s
.size
+ 1) << 16;
632 if (mio_boot_reg_cfg
.s
.en
&& base_ptr
>= region_base
633 && base_ptr
< region_base
+ region_size
)
640 new_reg
[0] = cpu_to_be32(cs
);
641 new_reg
[1] = cpu_to_be32(0x20);
642 new_reg
[2] = cpu_to_be32(0x20);
643 new_reg
[3] = cpu_to_be32(cs
);
644 new_reg
[4] = cpu_to_be32(0);
645 new_reg
[5] = cpu_to_be32(0x20);
646 fdt_setprop_inplace(initial_boot_params
, led
,
647 "reg", new_reg
, sizeof(new_reg
));
649 bootbus
= fdt_parent_offset(initial_boot_params
, led
);
652 ranges
= fdt_getprop_w(initial_boot_params
, bootbus
, "ranges", &len
);
653 if (!ranges
|| len
< (5 * 8 * sizeof(__be32
)))
656 ranges
[(cs
* 5) + 2] = cpu_to_be32(region_base
>> 32);
657 ranges
[(cs
* 5) + 3] = cpu_to_be32(region_base
& 0xffffffff);
658 ranges
[(cs
* 5) + 4] = cpu_to_be32(region_size
);
662 fdt_nop_node(initial_boot_params
, led
);
668 alias_prop
= fdt_getprop(initial_boot_params
, aliases
,
671 int uctl
= fdt_path_offset(initial_boot_params
, alias_prop
);
673 if (uctl
>= 0 && (!OCTEON_IS_MODEL(OCTEON_CN6XXX
) ||
674 octeon_bootinfo
->board_type
== CVMX_BOARD_TYPE_NIC2E
)) {
675 pr_debug("Deleting uctl\n");
676 fdt_nop_node(initial_boot_params
, uctl
);
677 fdt_nop_property(initial_boot_params
, aliases
, "uctl");
678 } else if (octeon_bootinfo
->board_type
== CVMX_BOARD_TYPE_NIC10E
||
679 octeon_bootinfo
->board_type
== CVMX_BOARD_TYPE_NIC4E
) {
680 /* Missing "refclk-type" defaults to crystal. */
681 fdt_nop_property(initial_boot_params
, uctl
, "refclk-type");
688 static int __init
octeon_publish_devices(void)
690 return of_platform_bus_probe(NULL
, octeon_ids
, NULL
);
692 device_initcall(octeon_publish_devices
);
694 MODULE_AUTHOR("David Daney <ddaney@caviumnetworks.com>");
695 MODULE_LICENSE("GPL");
696 MODULE_DESCRIPTION("Platform driver for Octeon SOC");