Commit | Line | Data |
---|---|---|
c2882bb1 | 1 | /* |
c141b38f ZF |
2 | * Copyright (C) 2006-2010, 2012 Freescale Semicondutor, Inc. |
3 | * All rights reserved. | |
c2882bb1 AF |
4 | * |
5 | * Author: Andy Fleming <afleming@freescale.com> | |
6 | * | |
7 | * Based on 83xx/mpc8360e_pb.c by: | |
8 | * Li Yang <LeoLi@freescale.com> | |
9 | * Yin Olivia <Hong-hua.Yin@freescale.com> | |
10 | * | |
11 | * Description: | |
23f510bc | 12 | * MPC85xx MDS board specific routines. |
c2882bb1 AF |
13 | * |
14 | * This program is free software; you can redistribute it and/or modify it | |
15 | * under the terms of the GNU General Public License as published by the | |
16 | * Free Software Foundation; either version 2 of the License, or (at your | |
17 | * option) any later version. | |
18 | */ | |
19 | ||
20 | #include <linux/stddef.h> | |
21 | #include <linux/kernel.h> | |
22 | #include <linux/init.h> | |
23 | #include <linux/errno.h> | |
24 | #include <linux/reboot.h> | |
25 | #include <linux/pci.h> | |
26 | #include <linux/kdev_t.h> | |
27 | #include <linux/major.h> | |
28 | #include <linux/console.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/seq_file.h> | |
c2882bb1 | 31 | #include <linux/initrd.h> |
c2882bb1 | 32 | #include <linux/fsl_devices.h> |
882407b9 JL |
33 | #include <linux/of_platform.h> |
34 | #include <linux/of_device.h> | |
94833a42 | 35 | #include <linux/phy.h> |
95f72d1e | 36 | #include <linux/memblock.h> |
c2882bb1 | 37 | |
60063497 | 38 | #include <linux/atomic.h> |
c2882bb1 AF |
39 | #include <asm/time.h> |
40 | #include <asm/io.h> | |
41 | #include <asm/machdep.h> | |
c2882bb1 | 42 | #include <asm/pci-bridge.h> |
c2882bb1 AF |
43 | #include <asm/irq.h> |
44 | #include <mm/mmu_decl.h> | |
45 | #include <asm/prom.h> | |
46 | #include <asm/udbg.h> | |
47 | #include <sysdev/fsl_soc.h> | |
3f6c5dae | 48 | #include <sysdev/fsl_pci.h> |
9b9d401b | 49 | #include <sysdev/simple_gpio.h> |
c2882bb1 AF |
50 | #include <asm/qe.h> |
51 | #include <asm/qe_ic.h> | |
52 | #include <asm/mpic.h> | |
152d0182 | 53 | #include <asm/swiotlb.h> |
c141b38f | 54 | #include <asm/fsl_guts.h> |
582d3e09 | 55 | #include "smp.h" |
c2882bb1 | 56 | |
543a07b1 DES |
57 | #include "mpc85xx.h" |
58 | ||
c2882bb1 AF |
59 | #undef DEBUG |
60 | #ifdef DEBUG | |
61 | #define DBG(fmt...) udbg_printf(fmt) | |
62 | #else | |
63 | #define DBG(fmt...) | |
64 | #endif | |
65 | ||
94833a42 AF |
66 | #define MV88E1111_SCR 0x10 |
67 | #define MV88E1111_SCR_125CLK 0x0010 | |
68 | static int mpc8568_fixup_125_clock(struct phy_device *phydev) | |
69 | { | |
70 | int scr; | |
71 | int err; | |
72 | ||
73 | /* Workaround for the 125 CLK Toggle */ | |
74 | scr = phy_read(phydev, MV88E1111_SCR); | |
75 | ||
76 | if (scr < 0) | |
77 | return scr; | |
78 | ||
79 | err = phy_write(phydev, MV88E1111_SCR, scr & ~(MV88E1111_SCR_125CLK)); | |
80 | ||
81 | if (err) | |
82 | return err; | |
83 | ||
84 | err = phy_write(phydev, MII_BMCR, BMCR_RESET); | |
85 | ||
86 | if (err) | |
87 | return err; | |
88 | ||
89 | scr = phy_read(phydev, MV88E1111_SCR); | |
90 | ||
91 | if (scr < 0) | |
29827b02 | 92 | return scr; |
94833a42 AF |
93 | |
94 | err = phy_write(phydev, MV88E1111_SCR, scr | 0x0008); | |
95 | ||
96 | return err; | |
97 | } | |
98 | ||
99 | static int mpc8568_mds_phy_fixups(struct phy_device *phydev) | |
100 | { | |
101 | int temp; | |
102 | int err; | |
103 | ||
104 | /* Errata */ | |
105 | err = phy_write(phydev,29, 0x0006); | |
106 | ||
107 | if (err) | |
108 | return err; | |
109 | ||
110 | temp = phy_read(phydev, 30); | |
111 | ||
112 | if (temp < 0) | |
113 | return temp; | |
114 | ||
115 | temp = (temp & (~0x8000)) | 0x4000; | |
116 | err = phy_write(phydev,30, temp); | |
117 | ||
118 | if (err) | |
119 | return err; | |
120 | ||
121 | err = phy_write(phydev,29, 0x000a); | |
122 | ||
123 | if (err) | |
124 | return err; | |
125 | ||
126 | temp = phy_read(phydev, 30); | |
127 | ||
128 | if (temp < 0) | |
129 | return temp; | |
130 | ||
131 | temp = phy_read(phydev, 30); | |
132 | ||
133 | if (temp < 0) | |
134 | return temp; | |
135 | ||
136 | temp &= ~0x0020; | |
137 | ||
138 | err = phy_write(phydev,30,temp); | |
139 | ||
140 | if (err) | |
141 | return err; | |
142 | ||
143 | /* Disable automatic MDI/MDIX selection */ | |
144 | temp = phy_read(phydev, 16); | |
145 | ||
146 | if (temp < 0) | |
147 | return temp; | |
148 | ||
149 | temp &= ~0x0060; | |
150 | err = phy_write(phydev,16,temp); | |
151 | ||
152 | return err; | |
153 | } | |
154 | ||
c2882bb1 AF |
155 | /* ************************************************************************ |
156 | * | |
157 | * Setup the architecture | |
158 | * | |
159 | */ | |
dee9ad71 | 160 | #ifdef CONFIG_QUICC_ENGINE |
99d8238f | 161 | static void __init mpc85xx_mds_reset_ucc_phys(void) |
c2882bb1 AF |
162 | { |
163 | struct device_node *np; | |
99d8238f | 164 | static u8 __iomem *bcsr_regs; |
c2882bb1 | 165 | |
c2882bb1 AF |
166 | /* Map BCSR area */ |
167 | np = of_find_node_by_name(NULL, "bcsr"); | |
99d8238f AV |
168 | if (!np) |
169 | return; | |
c2882bb1 | 170 | |
99d8238f AV |
171 | bcsr_regs = of_iomap(np, 0); |
172 | of_node_put(np); | |
173 | if (!bcsr_regs) | |
174 | return; | |
c2882bb1 | 175 | |
99d8238f AV |
176 | if (machine_is(mpc8568_mds)) { |
177 | #define BCSR_UCC1_GETH_EN (0x1 << 7) | |
178 | #define BCSR_UCC2_GETH_EN (0x1 << 7) | |
179 | #define BCSR_UCC1_MODE_MSK (0x3 << 4) | |
180 | #define BCSR_UCC2_MODE_MSK (0x3 << 0) | |
152d0182 | 181 | |
99d8238f AV |
182 | /* Turn off UCC1 & UCC2 */ |
183 | clrbits8(&bcsr_regs[8], BCSR_UCC1_GETH_EN); | |
184 | clrbits8(&bcsr_regs[9], BCSR_UCC2_GETH_EN); | |
185 | ||
186 | /* Mode is RGMII, all bits clear */ | |
187 | clrbits8(&bcsr_regs[11], BCSR_UCC1_MODE_MSK | | |
188 | BCSR_UCC2_MODE_MSK); | |
189 | ||
190 | /* Turn UCC1 & UCC2 on */ | |
191 | setbits8(&bcsr_regs[8], BCSR_UCC1_GETH_EN); | |
192 | setbits8(&bcsr_regs[9], BCSR_UCC2_GETH_EN); | |
193 | } else if (machine_is(mpc8569_mds)) { | |
194 | #define BCSR7_UCC12_GETHnRST (0x1 << 2) | |
195 | #define BCSR8_UEM_MARVELL_RST (0x1 << 1) | |
196 | #define BCSR_UCC_RGMII (0x1 << 6) | |
197 | #define BCSR_UCC_RTBI (0x1 << 5) | |
198 | /* | |
199 | * U-Boot mangles interrupt polarity for Marvell PHYs, | |
200 | * so reset built-in and UEM Marvell PHYs, this puts | |
201 | * the PHYs into their normal state. | |
202 | */ | |
203 | clrbits8(&bcsr_regs[7], BCSR7_UCC12_GETHnRST); | |
204 | setbits8(&bcsr_regs[8], BCSR8_UEM_MARVELL_RST); | |
205 | ||
206 | setbits8(&bcsr_regs[7], BCSR7_UCC12_GETHnRST); | |
207 | clrbits8(&bcsr_regs[8], BCSR8_UEM_MARVELL_RST); | |
208 | ||
209 | for (np = NULL; (np = of_find_compatible_node(np, | |
210 | "network", | |
211 | "ucc_geth")) != NULL;) { | |
212 | const unsigned int *prop; | |
213 | int ucc_num; | |
214 | ||
215 | prop = of_get_property(np, "cell-index", NULL); | |
216 | if (prop == NULL) | |
217 | continue; | |
218 | ||
219 | ucc_num = *prop - 1; | |
220 | ||
221 | prop = of_get_property(np, "phy-connection-type", NULL); | |
222 | if (prop == NULL) | |
223 | continue; | |
224 | ||
225 | if (strcmp("rtbi", (const char *)prop) == 0) | |
226 | clrsetbits_8(&bcsr_regs[7 + ucc_num], | |
227 | BCSR_UCC_RGMII, BCSR_UCC_RTBI); | |
c9438aff | 228 | } |
99d8238f AV |
229 | } else if (machine_is(p1021_mds)) { |
230 | #define BCSR11_ENET_MICRST (0x1 << 5) | |
231 | /* Reset Micrel PHY */ | |
232 | clrbits8(&bcsr_regs[11], BCSR11_ENET_MICRST); | |
233 | setbits8(&bcsr_regs[11], BCSR11_ENET_MICRST); | |
c9438aff | 234 | } |
c2882bb1 | 235 | |
99d8238f AV |
236 | iounmap(bcsr_regs); |
237 | } | |
48936a08 | 238 | |
99d8238f AV |
239 | static void __init mpc85xx_mds_qe_init(void) |
240 | { | |
241 | struct device_node *np; | |
48936a08 | 242 | |
a2dd70a1 AV |
243 | np = of_find_compatible_node(NULL, NULL, "fsl,qe"); |
244 | if (!np) { | |
245 | np = of_find_node_by_name(NULL, "qe"); | |
246 | if (!np) | |
247 | return; | |
c2882bb1 AF |
248 | } |
249 | ||
dee9ad71 AV |
250 | if (!of_device_is_available(np)) { |
251 | of_node_put(np); | |
252 | return; | |
253 | } | |
254 | ||
a2dd70a1 AV |
255 | qe_reset(); |
256 | of_node_put(np); | |
257 | ||
258 | np = of_find_node_by_name(NULL, "par_io"); | |
259 | if (np) { | |
260 | struct device_node *ucc; | |
c2882bb1 AF |
261 | |
262 | par_io_init(np); | |
263 | of_node_put(np); | |
264 | ||
a2dd70a1 | 265 | for_each_node_by_name(ucc, "ucc") |
c2882bb1 | 266 | par_io_of_config(ucc); |
c2882bb1 AF |
267 | } |
268 | ||
99d8238f | 269 | mpc85xx_mds_reset_ucc_phys(); |
48936a08 HW |
270 | |
271 | if (machine_is(p1021_mds)) { | |
48936a08 | 272 | |
9cb6abcb | 273 | struct ccsr_guts __iomem *guts; |
48936a08 | 274 | |
c141b38f | 275 | np = of_find_node_by_name(NULL, "global-utilities"); |
48936a08 | 276 | if (np) { |
c141b38f ZF |
277 | guts = of_iomap(np, 0); |
278 | if (!guts) | |
279 | pr_err("mpc85xx-rdb: could not map global utilities register\n"); | |
280 | else{ | |
48936a08 HW |
281 | /* P1021 has pins muxed for QE and other functions. To |
282 | * enable QE UEC mode, we need to set bit QE0 for UCC1 | |
283 | * in Eth mode, QE0 and QE3 for UCC5 in Eth mode, QE9 | |
8dd11f80 | 284 | * and QE12 for QE MII management signals in PMUXCR |
48936a08 HW |
285 | * register. |
286 | */ | |
c141b38f ZF |
287 | setbits32(&guts->pmuxcr, MPC85xx_PMUXCR_QE(0) | |
288 | MPC85xx_PMUXCR_QE(3) | | |
289 | MPC85xx_PMUXCR_QE(9) | | |
290 | MPC85xx_PMUXCR_QE(12)); | |
291 | iounmap(guts); | |
292 | } | |
48936a08 HW |
293 | of_node_put(np); |
294 | } | |
295 | ||
296 | } | |
99d8238f AV |
297 | } |
298 | ||
299 | static void __init mpc85xx_mds_qeic_init(void) | |
300 | { | |
301 | struct device_node *np; | |
302 | ||
303 | np = of_find_compatible_node(NULL, NULL, "fsl,qe"); | |
304 | if (!of_device_is_available(np)) { | |
305 | of_node_put(np); | |
306 | return; | |
307 | } | |
308 | ||
309 | np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic"); | |
310 | if (!np) { | |
311 | np = of_find_node_by_type(NULL, "qeic"); | |
312 | if (!np) | |
313 | return; | |
314 | } | |
315 | ||
316 | if (machine_is(p1021_mds)) | |
317 | qe_ic_init(np, 0, qe_ic_cascade_low_mpic, | |
318 | qe_ic_cascade_high_mpic); | |
319 | else | |
320 | qe_ic_init(np, 0, qe_ic_cascade_muxed_mpic, NULL); | |
321 | of_node_put(np); | |
322 | } | |
323 | #else | |
99d8238f AV |
324 | static void __init mpc85xx_mds_qe_init(void) { } |
325 | static void __init mpc85xx_mds_qeic_init(void) { } | |
c2882bb1 | 326 | #endif /* CONFIG_QUICC_ENGINE */ |
152d0182 | 327 | |
99d8238f AV |
328 | static void __init mpc85xx_mds_setup_arch(void) |
329 | { | |
99d8238f AV |
330 | if (ppc_md.progress) |
331 | ppc_md.progress("mpc85xx_mds_setup_arch()", 0); | |
332 | ||
99d8238f | 333 | mpc85xx_smp_init(); |
99d8238f AV |
334 | |
335 | mpc85xx_mds_qe_init(); | |
336 | ||
905e75c4 JH |
337 | fsl_pci_assign_primary(); |
338 | ||
339 | swiotlb_detect_4g(); | |
c2882bb1 AF |
340 | } |
341 | ||
94833a42 AF |
342 | |
343 | static int __init board_fixups(void) | |
344 | { | |
aab0d375 | 345 | char phy_id[20]; |
94833a42 AF |
346 | char *compstrs[2] = {"fsl,gianfar-mdio", "fsl,ucc-mdio"}; |
347 | struct device_node *mdio; | |
348 | struct resource res; | |
349 | int i; | |
350 | ||
351 | for (i = 0; i < ARRAY_SIZE(compstrs); i++) { | |
352 | mdio = of_find_compatible_node(NULL, NULL, compstrs[i]); | |
353 | ||
354 | of_address_to_resource(mdio, 0, &res); | |
aab0d375 | 355 | snprintf(phy_id, sizeof(phy_id), "%llx:%02x", |
24a99596 | 356 | (unsigned long long)res.start, 1); |
94833a42 AF |
357 | |
358 | phy_register_fixup_for_id(phy_id, mpc8568_fixup_125_clock); | |
359 | phy_register_fixup_for_id(phy_id, mpc8568_mds_phy_fixups); | |
360 | ||
361 | /* Register a workaround for errata */ | |
aab0d375 | 362 | snprintf(phy_id, sizeof(phy_id), "%llx:%02x", |
24a99596 | 363 | (unsigned long long)res.start, 7); |
94833a42 AF |
364 | phy_register_fixup_for_id(phy_id, mpc8568_mds_phy_fixups); |
365 | ||
366 | of_node_put(mdio); | |
367 | } | |
368 | ||
369 | return 0; | |
370 | } | |
ea5130dc | 371 | machine_arch_initcall(mpc8568_mds, board_fixups); |
4b3b42b3 | 372 | machine_arch_initcall(mpc8569_mds, board_fixups); |
94833a42 | 373 | |
23f510bc | 374 | static int __init mpc85xx_publish_devices(void) |
c2882bb1 | 375 | { |
e98efaf3 AV |
376 | if (machine_is(mpc8568_mds)) |
377 | simple_gpiochip_init("fsl,mpc8568mds-bcsr-gpio"); | |
9b9d401b AV |
378 | if (machine_is(mpc8569_mds)) |
379 | simple_gpiochip_init("fsl,mpc8569mds-bcsr-gpio"); | |
380 | ||
8a95bc8d | 381 | return mpc85xx_common_publish_devices(); |
48936a08 HW |
382 | } |
383 | ||
905e75c4 JH |
384 | machine_arch_initcall(mpc8568_mds, mpc85xx_publish_devices); |
385 | machine_arch_initcall(mpc8569_mds, mpc85xx_publish_devices); | |
386 | machine_arch_initcall(p1021_mds, mpc85xx_common_publish_devices); | |
c2882bb1 | 387 | |
152d0182 KG |
388 | machine_arch_initcall(mpc8568_mds, swiotlb_setup_bus_notifier); |
389 | machine_arch_initcall(mpc8569_mds, swiotlb_setup_bus_notifier); | |
48936a08 | 390 | machine_arch_initcall(p1021_mds, swiotlb_setup_bus_notifier); |
152d0182 | 391 | |
23f510bc | 392 | static void __init mpc85xx_mds_pic_init(void) |
c2882bb1 | 393 | { |
e55d7f73 | 394 | struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | |
5019609f | 395 | MPIC_SINGLE_DEST_CPU, |
b533f8ae | 396 | 0, 256, " OpenPIC "); |
c2882bb1 | 397 | BUG_ON(mpic == NULL); |
c2882bb1 | 398 | |
c2882bb1 | 399 | mpic_init(mpic); |
99d8238f | 400 | mpc85xx_mds_qeic_init(); |
c2882bb1 AF |
401 | } |
402 | ||
23f510bc | 403 | static int __init mpc85xx_mds_probe(void) |
c2882bb1 | 404 | { |
6936c625 | 405 | unsigned long root = of_get_flat_dt_root(); |
c2882bb1 | 406 | |
6936c625 | 407 | return of_flat_dt_is_compatible(root, "MPC85xxMDS"); |
c2882bb1 AF |
408 | } |
409 | ||
ea5130dc HW |
410 | define_machine(mpc8568_mds) { |
411 | .name = "MPC8568 MDS", | |
23f510bc KG |
412 | .probe = mpc85xx_mds_probe, |
413 | .setup_arch = mpc85xx_mds_setup_arch, | |
414 | .init_IRQ = mpc85xx_mds_pic_init, | |
c2882bb1 | 415 | .get_irq = mpic_get_irq, |
e1c1575f | 416 | .restart = fsl_rstcr_restart, |
c2882bb1 AF |
417 | .calibrate_decr = generic_calibrate_decr, |
418 | .progress = udbg_progress, | |
2af8569d | 419 | #ifdef CONFIG_PCI |
aa3c1121 | 420 | .pcibios_fixup_bus = fsl_pcibios_fixup_bus, |
2af8569d | 421 | #endif |
c2882bb1 | 422 | }; |
4b3b42b3 HW |
423 | |
424 | static int __init mpc8569_mds_probe(void) | |
425 | { | |
426 | unsigned long root = of_get_flat_dt_root(); | |
427 | ||
428 | return of_flat_dt_is_compatible(root, "fsl,MPC8569EMDS"); | |
429 | } | |
430 | ||
431 | define_machine(mpc8569_mds) { | |
432 | .name = "MPC8569 MDS", | |
433 | .probe = mpc8569_mds_probe, | |
434 | .setup_arch = mpc85xx_mds_setup_arch, | |
435 | .init_IRQ = mpc85xx_mds_pic_init, | |
436 | .get_irq = mpic_get_irq, | |
437 | .restart = fsl_rstcr_restart, | |
438 | .calibrate_decr = generic_calibrate_decr, | |
439 | .progress = udbg_progress, | |
440 | #ifdef CONFIG_PCI | |
441 | .pcibios_fixup_bus = fsl_pcibios_fixup_bus, | |
442 | #endif | |
443 | }; | |
48936a08 HW |
444 | |
445 | static int __init p1021_mds_probe(void) | |
446 | { | |
447 | unsigned long root = of_get_flat_dt_root(); | |
448 | ||
449 | return of_flat_dt_is_compatible(root, "fsl,P1021MDS"); | |
450 | ||
451 | } | |
452 | ||
453 | define_machine(p1021_mds) { | |
454 | .name = "P1021 MDS", | |
455 | .probe = p1021_mds_probe, | |
456 | .setup_arch = mpc85xx_mds_setup_arch, | |
457 | .init_IRQ = mpc85xx_mds_pic_init, | |
458 | .get_irq = mpic_get_irq, | |
459 | .restart = fsl_rstcr_restart, | |
460 | .calibrate_decr = generic_calibrate_decr, | |
461 | .progress = udbg_progress, | |
462 | #ifdef CONFIG_PCI | |
463 | .pcibios_fixup_bus = fsl_pcibios_fixup_bus, | |
464 | #endif | |
465 | }; | |
466 |