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gerrit-public.fairphone.software / kernel / msm-4.19 / 39e3eb7265b8698e5f607a317af13c9478274736 / . / include / asm-ppc / mpc52xx.h
blob: 64c8874618dc01c422f9edd0c0462bae3299f49b [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * include/asm-ppc/mpc52xx.h
3 *
4 * Prototypes, etc. for the Freescale MPC52xx embedded cpu chips
5 * May need to be cleaned as the port goes on ...
6 *
7 *
8 * Maintainer : Sylvain Munaut <tnt@246tNt.com>
9 *
10 * Originally written by Dale Farnsworth <dfarnsworth@mvista.com>
11 * for the 2.4 kernel.
12 *
13 * Copyright (C) 2004-2005 Sylvain Munaut <tnt@246tNt.com>
14 * Copyright (C) 2003 MontaVista, Software, Inc.
15 *
16 * This file is licensed under the terms of the GNU General Public License
17 * version 2. This program is licensed "as is" without any warranty of any
18 * kind, whether express or implied.
19 */
20
21#ifndef __ASM_MPC52xx_H__
22#define __ASM_MPC52xx_H__
23
24#ifndef __ASSEMBLY__
25#include <asm/ppcboot.h>
26#include <asm/types.h>
27
28struct pt_regs;
29#endif /* __ASSEMBLY__ */
30
31
Sylvain Munautf80257a2006-01-06 00:11:38 -0800[diff] [blame]32#ifdef CONFIG_PCI
33#define _IO_BASE isa_io_base
34#define _ISA_MEM_BASE isa_mem_base
35#define PCI_DRAM_OFFSET pci_dram_offset
36#else
37#define _IO_BASE 0
38#define _ISA_MEM_BASE 0
39#define PCI_DRAM_OFFSET 0
40#endif
41
42
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]43/* ======================================================================== */
44/* PPC Sys devices definition */
45/* ======================================================================== */
46
47enum ppc_sys_devices {
48 MPC52xx_MSCAN1,
49 MPC52xx_MSCAN2,
50 MPC52xx_SPI,
51 MPC52xx_USB,
52 MPC52xx_BDLC,
53 MPC52xx_PSC1,
54 MPC52xx_PSC2,
55 MPC52xx_PSC3,
56 MPC52xx_PSC4,
57 MPC52xx_PSC5,
58 MPC52xx_PSC6,
59 MPC52xx_FEC,
60 MPC52xx_ATA,
61 MPC52xx_I2C1,
62 MPC52xx_I2C2,
Vitaly Bordug75288c72006-01-20 22:22:34 +0300[diff] [blame]63 NUM_PPC_SYS_DEVS,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]64};
65
66
67/* ======================================================================== */
68/* Main registers/struct addresses */
69/* ======================================================================== */
70
71/* MBAR position */
72#define MPC52xx_MBAR 0xf0000000 /* Phys address */
73#define MPC52xx_MBAR_VIRT 0xf0000000 /* Virt address */
74#define MPC52xx_MBAR_SIZE 0x00010000
75
76#define MPC52xx_PA(x) ((phys_addr_t)(MPC52xx_MBAR + (x)))
77#define MPC52xx_VA(x) ((void __iomem *)(MPC52xx_MBAR_VIRT + (x)))
78
79/* Registers zone offset/size */
80#define MPC52xx_MMAP_CTL_OFFSET 0x0000
81#define MPC52xx_MMAP_CTL_SIZE 0x068
82#define MPC52xx_SDRAM_OFFSET 0x0100
83#define MPC52xx_SDRAM_SIZE 0x010
84#define MPC52xx_CDM_OFFSET 0x0200
85#define MPC52xx_CDM_SIZE 0x038
86#define MPC52xx_INTR_OFFSET 0x0500
87#define MPC52xx_INTR_SIZE 0x04c
88#define MPC52xx_GPTx_OFFSET(x) (0x0600 + ((x)<<4))
89#define MPC52xx_GPT_SIZE 0x010
90#define MPC52xx_RTC_OFFSET 0x0800
91#define MPC52xx_RTC_SIZE 0x024
92#define MPC52xx_GPIO_OFFSET 0x0b00
93#define MPC52xx_GPIO_SIZE 0x040
94#define MPC52xx_GPIO_WKUP_OFFSET 0x0c00
95#define MPC52xx_GPIO_WKUP_SIZE 0x028
96#define MPC52xx_PCI_OFFSET 0x0d00
97#define MPC52xx_PCI_SIZE 0x100
98#define MPC52xx_SDMA_OFFSET 0x1200
99#define MPC52xx_SDMA_SIZE 0x100
100#define MPC52xx_XLB_OFFSET 0x1f00
101#define MPC52xx_XLB_SIZE 0x100
102#define MPC52xx_PSCx_OFFSET(x) (((x)!=6)?(0x1e00+((x)<<9)):0x2c00)
103#define MPC52xx_PSC_SIZE 0x0a0
104
105/* SRAM used for SDMA */
106#define MPC52xx_SRAM_OFFSET 0x8000
107#define MPC52xx_SRAM_SIZE 0x4000
108
109
110/* ======================================================================== */
111/* IRQ mapping */
112/* ======================================================================== */
113/* Be sure to look at mpc52xx_pic.h if you wish for whatever reason to change
114 * this
115 */
116
117#define MPC52xx_CRIT_IRQ_NUM 4
118#define MPC52xx_MAIN_IRQ_NUM 17
119#define MPC52xx_SDMA_IRQ_NUM 17
120#define MPC52xx_PERP_IRQ_NUM 23
121
Sylvain Munaute21b9f22006-01-06 00:11:35 -0800[diff] [blame]122#define MPC52xx_CRIT_IRQ_BASE 1
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]123#define MPC52xx_MAIN_IRQ_BASE (MPC52xx_CRIT_IRQ_BASE + MPC52xx_CRIT_IRQ_NUM)
124#define MPC52xx_SDMA_IRQ_BASE (MPC52xx_MAIN_IRQ_BASE + MPC52xx_MAIN_IRQ_NUM)
125#define MPC52xx_PERP_IRQ_BASE (MPC52xx_SDMA_IRQ_BASE + MPC52xx_SDMA_IRQ_NUM)
126
127#define MPC52xx_IRQ0 (MPC52xx_CRIT_IRQ_BASE + 0)
128#define MPC52xx_SLICE_TIMER_0_IRQ (MPC52xx_CRIT_IRQ_BASE + 1)
129#define MPC52xx_HI_INT_IRQ (MPC52xx_CRIT_IRQ_BASE + 2)
130#define MPC52xx_CCS_IRQ (MPC52xx_CRIT_IRQ_BASE + 3)
131
132#define MPC52xx_IRQ1 (MPC52xx_MAIN_IRQ_BASE + 1)
133#define MPC52xx_IRQ2 (MPC52xx_MAIN_IRQ_BASE + 2)
134#define MPC52xx_IRQ3 (MPC52xx_MAIN_IRQ_BASE + 3)
135
136#define MPC52xx_SDMA_IRQ (MPC52xx_PERP_IRQ_BASE + 0)
137#define MPC52xx_PSC1_IRQ (MPC52xx_PERP_IRQ_BASE + 1)
138#define MPC52xx_PSC2_IRQ (MPC52xx_PERP_IRQ_BASE + 2)
139#define MPC52xx_PSC3_IRQ (MPC52xx_PERP_IRQ_BASE + 3)
140#define MPC52xx_PSC6_IRQ (MPC52xx_PERP_IRQ_BASE + 4)
141#define MPC52xx_IRDA_IRQ (MPC52xx_PERP_IRQ_BASE + 4)
142#define MPC52xx_FEC_IRQ (MPC52xx_PERP_IRQ_BASE + 5)
143#define MPC52xx_USB_IRQ (MPC52xx_PERP_IRQ_BASE + 6)
144#define MPC52xx_ATA_IRQ (MPC52xx_PERP_IRQ_BASE + 7)
145#define MPC52xx_PCI_CNTRL_IRQ (MPC52xx_PERP_IRQ_BASE + 8)
146#define MPC52xx_PCI_SCIRX_IRQ (MPC52xx_PERP_IRQ_BASE + 9)
147#define MPC52xx_PCI_SCITX_IRQ (MPC52xx_PERP_IRQ_BASE + 10)
148#define MPC52xx_PSC4_IRQ (MPC52xx_PERP_IRQ_BASE + 11)
149#define MPC52xx_PSC5_IRQ (MPC52xx_PERP_IRQ_BASE + 12)
150#define MPC52xx_SPI_MODF_IRQ (MPC52xx_PERP_IRQ_BASE + 13)
151#define MPC52xx_SPI_SPIF_IRQ (MPC52xx_PERP_IRQ_BASE + 14)
152#define MPC52xx_I2C1_IRQ (MPC52xx_PERP_IRQ_BASE + 15)
153#define MPC52xx_I2C2_IRQ (MPC52xx_PERP_IRQ_BASE + 16)
154#define MPC52xx_MSCAN1_IRQ (MPC52xx_PERP_IRQ_BASE + 17)
155#define MPC52xx_MSCAN2_IRQ (MPC52xx_PERP_IRQ_BASE + 18)
156#define MPC52xx_IR_RX_IRQ (MPC52xx_PERP_IRQ_BASE + 19)
157#define MPC52xx_IR_TX_IRQ (MPC52xx_PERP_IRQ_BASE + 20)
158#define MPC52xx_XLB_ARB_IRQ (MPC52xx_PERP_IRQ_BASE + 21)
159#define MPC52xx_BDLC_IRQ (MPC52xx_PERP_IRQ_BASE + 22)
160
161
162
163/* ======================================================================== */
164/* Structures mapping of some unit register set */
165/* ======================================================================== */
166
167#ifndef __ASSEMBLY__
168
169/* Memory Mapping Control */
170struct mpc52xx_mmap_ctl {
171 u32 mbar; /* MMAP_CTRL + 0x00 */
172
173 u32 cs0_start; /* MMAP_CTRL + 0x04 */
174 u32 cs0_stop; /* MMAP_CTRL + 0x08 */
175 u32 cs1_start; /* MMAP_CTRL + 0x0c */
176 u32 cs1_stop; /* MMAP_CTRL + 0x10 */
177 u32 cs2_start; /* MMAP_CTRL + 0x14 */
178 u32 cs2_stop; /* MMAP_CTRL + 0x18 */
179 u32 cs3_start; /* MMAP_CTRL + 0x1c */
180 u32 cs3_stop; /* MMAP_CTRL + 0x20 */
181 u32 cs4_start; /* MMAP_CTRL + 0x24 */
182 u32 cs4_stop; /* MMAP_CTRL + 0x28 */
183 u32 cs5_start; /* MMAP_CTRL + 0x2c */
184 u32 cs5_stop; /* MMAP_CTRL + 0x30 */
185
186 u32 sdram0; /* MMAP_CTRL + 0x34 */
187 u32 sdram1; /* MMAP_CTRL + 0X38 */
188
189 u32 reserved[4]; /* MMAP_CTRL + 0x3c .. 0x48 */
190
191 u32 boot_start; /* MMAP_CTRL + 0x4c */
192 u32 boot_stop; /* MMAP_CTRL + 0x50 */
193
194 u32 ipbi_ws_ctrl; /* MMAP_CTRL + 0x54 */
195
196 u32 cs6_start; /* MMAP_CTRL + 0x58 */
197 u32 cs6_stop; /* MMAP_CTRL + 0x5c */
198 u32 cs7_start; /* MMAP_CTRL + 0x60 */
199 u32 cs7_stop; /* MMAP_CTRL + 0x64 */
200};
201
202/* SDRAM control */
203struct mpc52xx_sdram {
204 u32 mode; /* SDRAM + 0x00 */
205 u32 ctrl; /* SDRAM + 0x04 */
206 u32 config1; /* SDRAM + 0x08 */
207 u32 config2; /* SDRAM + 0x0c */
208};
209
210/* Interrupt controller */
211struct mpc52xx_intr {
212 u32 per_mask; /* INTR + 0x00 */
213 u32 per_pri1; /* INTR + 0x04 */
214 u32 per_pri2; /* INTR + 0x08 */
215 u32 per_pri3; /* INTR + 0x0c */
216 u32 ctrl; /* INTR + 0x10 */
217 u32 main_mask; /* INTR + 0x14 */
218 u32 main_pri1; /* INTR + 0x18 */
219 u32 main_pri2; /* INTR + 0x1c */
220 u32 reserved1; /* INTR + 0x20 */
221 u32 enc_status; /* INTR + 0x24 */
222 u32 crit_status; /* INTR + 0x28 */
223 u32 main_status; /* INTR + 0x2c */
224 u32 per_status; /* INTR + 0x30 */
225 u32 reserved2; /* INTR + 0x34 */
226 u32 per_error; /* INTR + 0x38 */
227};
228
229/* SDMA */
230struct mpc52xx_sdma {
231 u32 taskBar; /* SDMA + 0x00 */
232 u32 currentPointer; /* SDMA + 0x04 */
233 u32 endPointer; /* SDMA + 0x08 */
234 u32 variablePointer;/* SDMA + 0x0c */
235
236 u8 IntVect1; /* SDMA + 0x10 */
237 u8 IntVect2; /* SDMA + 0x11 */
238 u16 PtdCntrl; /* SDMA + 0x12 */
239
240 u32 IntPend; /* SDMA + 0x14 */
241 u32 IntMask; /* SDMA + 0x18 */
242
243 u16 tcr[16]; /* SDMA + 0x1c .. 0x3a */
244
245 u8 ipr[32]; /* SDMA + 0x3c .. 0x5b */
246
247 u32 cReqSelect; /* SDMA + 0x5c */
248 u32 task_size0; /* SDMA + 0x60 */
249 u32 task_size1; /* SDMA + 0x64 */
250 u32 MDEDebug; /* SDMA + 0x68 */
251 u32 ADSDebug; /* SDMA + 0x6c */
252 u32 Value1; /* SDMA + 0x70 */
253 u32 Value2; /* SDMA + 0x74 */
254 u32 Control; /* SDMA + 0x78 */
255 u32 Status; /* SDMA + 0x7c */
256 u32 PTDDebug; /* SDMA + 0x80 */
257};
258
259/* GPT */
260struct mpc52xx_gpt {
261 u32 mode; /* GPTx + 0x00 */
262 u32 count; /* GPTx + 0x04 */
263 u32 pwm; /* GPTx + 0x08 */
264 u32 status; /* GPTx + 0X0c */
265};
266
267/* RTC */
268struct mpc52xx_rtc {
269 u32 time_set; /* RTC + 0x00 */
270 u32 date_set; /* RTC + 0x04 */
271 u32 stopwatch; /* RTC + 0x08 */
272 u32 int_enable; /* RTC + 0x0c */
273 u32 time; /* RTC + 0x10 */
274 u32 date; /* RTC + 0x14 */
275 u32 stopwatch_intr; /* RTC + 0x18 */
276 u32 bus_error; /* RTC + 0x1c */
277 u32 dividers; /* RTC + 0x20 */
278};
279
280/* GPIO */
281struct mpc52xx_gpio {
282 u32 port_config; /* GPIO + 0x00 */
283 u32 simple_gpioe; /* GPIO + 0x04 */
284 u32 simple_ode; /* GPIO + 0x08 */
285 u32 simple_ddr; /* GPIO + 0x0c */
286 u32 simple_dvo; /* GPIO + 0x10 */
287 u32 simple_ival; /* GPIO + 0x14 */
288 u8 outo_gpioe; /* GPIO + 0x18 */
289 u8 reserved1[3]; /* GPIO + 0x19 */
290 u8 outo_dvo; /* GPIO + 0x1c */
291 u8 reserved2[3]; /* GPIO + 0x1d */
292 u8 sint_gpioe; /* GPIO + 0x20 */
293 u8 reserved3[3]; /* GPIO + 0x21 */
294 u8 sint_ode; /* GPIO + 0x24 */
295 u8 reserved4[3]; /* GPIO + 0x25 */
296 u8 sint_ddr; /* GPIO + 0x28 */
297 u8 reserved5[3]; /* GPIO + 0x29 */
298 u8 sint_dvo; /* GPIO + 0x2c */
299 u8 reserved6[3]; /* GPIO + 0x2d */
300 u8 sint_inten; /* GPIO + 0x30 */
301 u8 reserved7[3]; /* GPIO + 0x31 */
302 u16 sint_itype; /* GPIO + 0x34 */
303 u16 reserved8; /* GPIO + 0x36 */
304 u8 gpio_control; /* GPIO + 0x38 */
305 u8 reserved9[3]; /* GPIO + 0x39 */
306 u8 sint_istat; /* GPIO + 0x3c */
307 u8 sint_ival; /* GPIO + 0x3d */
308 u8 bus_errs; /* GPIO + 0x3e */
309 u8 reserved10; /* GPIO + 0x3f */
310};
311
312#define MPC52xx_GPIO_PSC_CONFIG_UART_WITHOUT_CD 4
313#define MPC52xx_GPIO_PSC_CONFIG_UART_WITH_CD 5
314#define MPC52xx_GPIO_PCI_DIS (1<<15)
315
316/* GPIO with WakeUp*/
317struct mpc52xx_gpio_wkup {
318 u8 wkup_gpioe; /* GPIO_WKUP + 0x00 */
319 u8 reserved1[3]; /* GPIO_WKUP + 0x03 */
320 u8 wkup_ode; /* GPIO_WKUP + 0x04 */
321 u8 reserved2[3]; /* GPIO_WKUP + 0x05 */
322 u8 wkup_ddr; /* GPIO_WKUP + 0x08 */
323 u8 reserved3[3]; /* GPIO_WKUP + 0x09 */
324 u8 wkup_dvo; /* GPIO_WKUP + 0x0C */
325 u8 reserved4[3]; /* GPIO_WKUP + 0x0D */
326 u8 wkup_inten; /* GPIO_WKUP + 0x10 */
327 u8 reserved5[3]; /* GPIO_WKUP + 0x11 */
328 u8 wkup_iinten; /* GPIO_WKUP + 0x14 */
329 u8 reserved6[3]; /* GPIO_WKUP + 0x15 */
330 u16 wkup_itype; /* GPIO_WKUP + 0x18 */
331 u8 reserved7[2]; /* GPIO_WKUP + 0x1A */
332 u8 wkup_maste; /* GPIO_WKUP + 0x1C */
333 u8 reserved8[3]; /* GPIO_WKUP + 0x1D */
334 u8 wkup_ival; /* GPIO_WKUP + 0x20 */
335 u8 reserved9[3]; /* GPIO_WKUP + 0x21 */
336 u8 wkup_istat; /* GPIO_WKUP + 0x24 */
337 u8 reserved10[3]; /* GPIO_WKUP + 0x25 */
338};
339
340/* XLB Bus control */
341struct mpc52xx_xlb {
342 u8 reserved[0x40];
343 u32 config; /* XLB + 0x40 */
344 u32 version; /* XLB + 0x44 */
345 u32 status; /* XLB + 0x48 */
346 u32 int_enable; /* XLB + 0x4c */
347 u32 addr_capture; /* XLB + 0x50 */
348 u32 bus_sig_capture; /* XLB + 0x54 */
349 u32 addr_timeout; /* XLB + 0x58 */
350 u32 data_timeout; /* XLB + 0x5c */
351 u32 bus_act_timeout; /* XLB + 0x60 */
352 u32 master_pri_enable; /* XLB + 0x64 */
353 u32 master_priority; /* XLB + 0x68 */
354 u32 base_address; /* XLB + 0x6c */
355 u32 snoop_window; /* XLB + 0x70 */
356};
357
Sylvain Munaut1f5e3b02006-03-26 13:38:09 +0200[diff] [blame]358#define MPC52xx_XLB_CFG_PLDIS (1 << 31)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]359#define MPC52xx_XLB_CFG_SNOOP (1 << 15)
360
361/* Clock Distribution control */
362struct mpc52xx_cdm {
363 u32 jtag_id; /* CDM + 0x00 reg0 read only */
364 u32 rstcfg; /* CDM + 0x04 reg1 read only */
365 u32 breadcrumb; /* CDM + 0x08 reg2 */
366
367 u8 mem_clk_sel; /* CDM + 0x0c reg3 byte0 */
368 u8 xlb_clk_sel; /* CDM + 0x0d reg3 byte1 read only */
369 u8 ipb_clk_sel; /* CDM + 0x0e reg3 byte2 */
370 u8 pci_clk_sel; /* CDM + 0x0f reg3 byte3 */
371
372 u8 ext_48mhz_en; /* CDM + 0x10 reg4 byte0 */
373 u8 fd_enable; /* CDM + 0x11 reg4 byte1 */
374 u16 fd_counters; /* CDM + 0x12 reg4 byte2,3 */
375
376 u32 clk_enables; /* CDM + 0x14 reg5 */
377
378 u8 osc_disable; /* CDM + 0x18 reg6 byte0 */
379 u8 reserved0[3]; /* CDM + 0x19 reg6 byte1,2,3 */
380
381 u8 ccs_sleep_enable; /* CDM + 0x1c reg7 byte0 */
382 u8 osc_sleep_enable; /* CDM + 0x1d reg7 byte1 */
383 u8 reserved1; /* CDM + 0x1e reg7 byte2 */
384 u8 ccs_qreq_test; /* CDM + 0x1f reg7 byte3 */
385
386 u8 soft_reset; /* CDM + 0x20 u8 byte0 */
387 u8 no_ckstp; /* CDM + 0x21 u8 byte0 */
388 u8 reserved2[2]; /* CDM + 0x22 u8 byte1,2,3 */
389
390 u8 pll_lock; /* CDM + 0x24 reg9 byte0 */
391 u8 pll_looselock; /* CDM + 0x25 reg9 byte1 */
392 u8 pll_sm_lockwin; /* CDM + 0x26 reg9 byte2 */
393 u8 reserved3; /* CDM + 0x27 reg9 byte3 */
394
395 u16 reserved4; /* CDM + 0x28 reg10 byte0,1 */
396 u16 mclken_div_psc1; /* CDM + 0x2a reg10 byte2,3 */
397
398 u16 reserved5; /* CDM + 0x2c reg11 byte0,1 */
399 u16 mclken_div_psc2; /* CDM + 0x2e reg11 byte2,3 */
400
401 u16 reserved6; /* CDM + 0x30 reg12 byte0,1 */
402 u16 mclken_div_psc3; /* CDM + 0x32 reg12 byte2,3 */
403
404 u16 reserved7; /* CDM + 0x34 reg13 byte0,1 */
405 u16 mclken_div_psc6; /* CDM + 0x36 reg13 byte2,3 */
406};
407
408#endif /* __ASSEMBLY__ */
409
410
411/* ========================================================================= */
412/* Prototypes for MPC52xx syslib */
413/* ========================================================================= */
414
415#ifndef __ASSEMBLY__
416
417extern void mpc52xx_init_irq(void);
Al Viro39e3eb72006-10-09 12:48:42 +0100[diff] [blame^]418extern int mpc52xx_get_irq(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]419
420extern unsigned long mpc52xx_find_end_of_memory(void);
421extern void mpc52xx_set_bat(void);
422extern void mpc52xx_map_io(void);
423extern void mpc52xx_restart(char *cmd);
424extern void mpc52xx_halt(void);
425extern void mpc52xx_power_off(void);
426extern void mpc52xx_progress(char *s, unsigned short hex);
427extern void mpc52xx_calibrate_decr(void);
428
429extern void mpc52xx_find_bridges(void);
430
Sylvain Munaut1f5e3b02006-03-26 13:38:09 +0200[diff] [blame]431extern void mpc52xx_setup_cpu(void);
432
433
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]434
435 /* Matching of PSC function */
436struct mpc52xx_psc_func {
437 int id;
438 char *func;
439};
440
441extern int mpc52xx_match_psc_function(int psc_idx, const char *func);
442extern struct mpc52xx_psc_func mpc52xx_psc_functions[];
443 /* This array is to be defined in platform file */
444
445#endif /* __ASSEMBLY__ */
446
447
448/* ========================================================================= */
449/* Platform configuration */
450/* ========================================================================= */
451
452/* The U-Boot platform information struct */
453extern bd_t __res;
454
455/* Platform options */
456#if defined(CONFIG_LITE5200)
457#include <platforms/lite5200.h>
458#endif
459
460
461#endif /* __ASM_MPC52xx_H__ */