1 /*
2  * Prototypes, etc. for the Freescale MPC52xx embedded cpu chips
3  * May need to be cleaned as the port goes on ...
4  *
5  * Copyright (C) 2004-2005 Sylvain Munaut <tnt@246tNt.com>
6  * Copyright (C) 2003 MontaVista, Software, Inc.
7  *
8  * This file is licensed under the terms of the GNU General Public License
9  * version 2. This program is licensed "as is" without any warranty of any
10  * kind, whether express or implied.
11  */
12 
13 #ifndef __ASM_POWERPC_MPC52xx_H__
14 #define __ASM_POWERPC_MPC52xx_H__
15 
16 #ifndef __ASSEMBLY__
17 #include <asm/types.h>
18 #include <asm/prom.h>
19 #include <asm/mpc5xxx.h>
20 #endif /* __ASSEMBLY__ */
21 
22 #include <linux/suspend.h>
23 
24 /* Variants of the 5200(B) */
25 #define MPC5200_SVR		0x80110010
26 #define MPC5200_SVR_MASK	0xfffffff0
27 #define MPC5200B_SVR		0x80110020
28 #define MPC5200B_SVR_MASK	0xfffffff0
29 
30 /* ======================================================================== */
31 /* Structures mapping of some unit register set                             */
32 /* ======================================================================== */
33 
34 #ifndef __ASSEMBLY__
35 
36 /* Memory Mapping Control */
37 struct mpc52xx_mmap_ctl {
38 	u32 mbar;		/* MMAP_CTRL + 0x00 */
39 
40 	u32 cs0_start;		/* MMAP_CTRL + 0x04 */
41 	u32 cs0_stop;		/* MMAP_CTRL + 0x08 */
42 	u32 cs1_start;		/* MMAP_CTRL + 0x0c */
43 	u32 cs1_stop;		/* MMAP_CTRL + 0x10 */
44 	u32 cs2_start;		/* MMAP_CTRL + 0x14 */
45 	u32 cs2_stop;		/* MMAP_CTRL + 0x18 */
46 	u32 cs3_start;		/* MMAP_CTRL + 0x1c */
47 	u32 cs3_stop;		/* MMAP_CTRL + 0x20 */
48 	u32 cs4_start;		/* MMAP_CTRL + 0x24 */
49 	u32 cs4_stop;		/* MMAP_CTRL + 0x28 */
50 	u32 cs5_start;		/* MMAP_CTRL + 0x2c */
51 	u32 cs5_stop;		/* MMAP_CTRL + 0x30 */
52 
53 	u32 sdram0;		/* MMAP_CTRL + 0x34 */
54 	u32 sdram1;		/* MMAP_CTRL + 0X38 */
55 
56 	u32 reserved[4];	/* MMAP_CTRL + 0x3c .. 0x48 */
57 
58 	u32 boot_start;		/* MMAP_CTRL + 0x4c */
59 	u32 boot_stop;		/* MMAP_CTRL + 0x50 */
60 
61 	u32 ipbi_ws_ctrl;	/* MMAP_CTRL + 0x54 */
62 
63 	u32 cs6_start;		/* MMAP_CTRL + 0x58 */
64 	u32 cs6_stop;		/* MMAP_CTRL + 0x5c */
65 	u32 cs7_start;		/* MMAP_CTRL + 0x60 */
66 	u32 cs7_stop;		/* MMAP_CTRL + 0x64 */
67 };
68 
69 /* SDRAM control */
70 struct mpc52xx_sdram {
71 	u32 mode;		/* SDRAM + 0x00 */
72 	u32 ctrl;		/* SDRAM + 0x04 */
73 	u32 config1;		/* SDRAM + 0x08 */
74 	u32 config2;		/* SDRAM + 0x0c */
75 };
76 
77 /* SDMA */
78 struct mpc52xx_sdma {
79 	u32 taskBar;		/* SDMA + 0x00 */
80 	u32 currentPointer;	/* SDMA + 0x04 */
81 	u32 endPointer;		/* SDMA + 0x08 */
82 	u32 variablePointer;	/* SDMA + 0x0c */
83 
84 	u8 IntVect1;		/* SDMA + 0x10 */
85 	u8 IntVect2;		/* SDMA + 0x11 */
86 	u16 PtdCntrl;		/* SDMA + 0x12 */
87 
88 	u32 IntPend;		/* SDMA + 0x14 */
89 	u32 IntMask;		/* SDMA + 0x18 */
90 
91 	u16 tcr[16];		/* SDMA + 0x1c .. 0x3a */
92 
93 	u8 ipr[32];		/* SDMA + 0x3c .. 0x5b */
94 
95 	u32 cReqSelect;		/* SDMA + 0x5c */
96 	u32 task_size0;		/* SDMA + 0x60 */
97 	u32 task_size1;		/* SDMA + 0x64 */
98 	u32 MDEDebug;		/* SDMA + 0x68 */
99 	u32 ADSDebug;		/* SDMA + 0x6c */
100 	u32 Value1;		/* SDMA + 0x70 */
101 	u32 Value2;		/* SDMA + 0x74 */
102 	u32 Control;		/* SDMA + 0x78 */
103 	u32 Status;		/* SDMA + 0x7c */
104 	u32 PTDDebug;		/* SDMA + 0x80 */
105 };
106 
107 /* GPT */
108 struct mpc52xx_gpt {
109 	u32 mode;		/* GPTx + 0x00 */
110 	u32 count;		/* GPTx + 0x04 */
111 	u32 pwm;		/* GPTx + 0x08 */
112 	u32 status;		/* GPTx + 0X0c */
113 };
114 
115 /* GPIO */
116 struct mpc52xx_gpio {
117 	u32 port_config;	/* GPIO + 0x00 */
118 	u32 simple_gpioe;	/* GPIO + 0x04 */
119 	u32 simple_ode;		/* GPIO + 0x08 */
120 	u32 simple_ddr;		/* GPIO + 0x0c */
121 	u32 simple_dvo;		/* GPIO + 0x10 */
122 	u32 simple_ival;	/* GPIO + 0x14 */
123 	u8 outo_gpioe;		/* GPIO + 0x18 */
124 	u8 reserved1[3];	/* GPIO + 0x19 */
125 	u8 outo_dvo;		/* GPIO + 0x1c */
126 	u8 reserved2[3];	/* GPIO + 0x1d */
127 	u8 sint_gpioe;		/* GPIO + 0x20 */
128 	u8 reserved3[3];	/* GPIO + 0x21 */
129 	u8 sint_ode;		/* GPIO + 0x24 */
130 	u8 reserved4[3];	/* GPIO + 0x25 */
131 	u8 sint_ddr;		/* GPIO + 0x28 */
132 	u8 reserved5[3];	/* GPIO + 0x29 */
133 	u8 sint_dvo;		/* GPIO + 0x2c */
134 	u8 reserved6[3];	/* GPIO + 0x2d */
135 	u8 sint_inten;		/* GPIO + 0x30 */
136 	u8 reserved7[3];	/* GPIO + 0x31 */
137 	u16 sint_itype;		/* GPIO + 0x34 */
138 	u16 reserved8;		/* GPIO + 0x36 */
139 	u8 gpio_control;	/* GPIO + 0x38 */
140 	u8 reserved9[3];	/* GPIO + 0x39 */
141 	u8 sint_istat;		/* GPIO + 0x3c */
142 	u8 sint_ival;		/* GPIO + 0x3d */
143 	u8 bus_errs;		/* GPIO + 0x3e */
144 	u8 reserved10;		/* GPIO + 0x3f */
145 };
146 
147 #define MPC52xx_GPIO_PSC_CONFIG_UART_WITHOUT_CD	4
148 #define MPC52xx_GPIO_PSC_CONFIG_UART_WITH_CD	5
149 #define MPC52xx_GPIO_PCI_DIS			(1<<15)
150 
151 /* GPIO with WakeUp*/
152 struct mpc52xx_gpio_wkup {
153 	u8 wkup_gpioe;		/* GPIO_WKUP + 0x00 */
154 	u8 reserved1[3];	/* GPIO_WKUP + 0x03 */
155 	u8 wkup_ode;		/* GPIO_WKUP + 0x04 */
156 	u8 reserved2[3];	/* GPIO_WKUP + 0x05 */
157 	u8 wkup_ddr;		/* GPIO_WKUP + 0x08 */
158 	u8 reserved3[3];	/* GPIO_WKUP + 0x09 */
159 	u8 wkup_dvo;		/* GPIO_WKUP + 0x0C */
160 	u8 reserved4[3];	/* GPIO_WKUP + 0x0D */
161 	u8 wkup_inten;		/* GPIO_WKUP + 0x10 */
162 	u8 reserved5[3];	/* GPIO_WKUP + 0x11 */
163 	u8 wkup_iinten;		/* GPIO_WKUP + 0x14 */
164 	u8 reserved6[3];	/* GPIO_WKUP + 0x15 */
165 	u16 wkup_itype;		/* GPIO_WKUP + 0x18 */
166 	u8 reserved7[2];	/* GPIO_WKUP + 0x1A */
167 	u8 wkup_maste;		/* GPIO_WKUP + 0x1C */
168 	u8 reserved8[3];	/* GPIO_WKUP + 0x1D */
169 	u8 wkup_ival;		/* GPIO_WKUP + 0x20 */
170 	u8 reserved9[3];	/* GPIO_WKUP + 0x21 */
171 	u8 wkup_istat;		/* GPIO_WKUP + 0x24 */
172 	u8 reserved10[3];	/* GPIO_WKUP + 0x25 */
173 };
174 
175 /* XLB Bus control */
176 struct mpc52xx_xlb {
177 	u8 reserved[0x40];
178 	u32 config;		/* XLB + 0x40 */
179 	u32 version;		/* XLB + 0x44 */
180 	u32 status;		/* XLB + 0x48 */
181 	u32 int_enable;		/* XLB + 0x4c */
182 	u32 addr_capture;	/* XLB + 0x50 */
183 	u32 bus_sig_capture;	/* XLB + 0x54 */
184 	u32 addr_timeout;	/* XLB + 0x58 */
185 	u32 data_timeout;	/* XLB + 0x5c */
186 	u32 bus_act_timeout;	/* XLB + 0x60 */
187 	u32 master_pri_enable;	/* XLB + 0x64 */
188 	u32 master_priority;	/* XLB + 0x68 */
189 	u32 base_address;	/* XLB + 0x6c */
190 	u32 snoop_window;	/* XLB + 0x70 */
191 };
192 
193 #define MPC52xx_XLB_CFG_PLDIS		(1 << 31)
194 #define MPC52xx_XLB_CFG_SNOOP		(1 << 15)
195 
196 /* Clock Distribution control */
197 struct mpc52xx_cdm {
198 	u32 jtag_id;		/* CDM + 0x00  reg0 read only */
199 	u32 rstcfg;		/* CDM + 0x04  reg1 read only */
200 	u32 breadcrumb;		/* CDM + 0x08  reg2 */
201 
202 	u8 mem_clk_sel;		/* CDM + 0x0c  reg3 byte0 */
203 	u8 xlb_clk_sel;		/* CDM + 0x0d  reg3 byte1 read only */
204 	u8 ipb_clk_sel;		/* CDM + 0x0e  reg3 byte2 */
205 	u8 pci_clk_sel;		/* CDM + 0x0f  reg3 byte3 */
206 
207 	u8 ext_48mhz_en;	/* CDM + 0x10  reg4 byte0 */
208 	u8 fd_enable;		/* CDM + 0x11  reg4 byte1 */
209 	u16 fd_counters;	/* CDM + 0x12  reg4 byte2,3 */
210 
211 	u32 clk_enables;	/* CDM + 0x14  reg5 */
212 
213 	u8 osc_disable;		/* CDM + 0x18  reg6 byte0 */
214 	u8 reserved0[3];	/* CDM + 0x19  reg6 byte1,2,3 */
215 
216 	u8 ccs_sleep_enable;	/* CDM + 0x1c  reg7 byte0 */
217 	u8 osc_sleep_enable;	/* CDM + 0x1d  reg7 byte1 */
218 	u8 reserved1;		/* CDM + 0x1e  reg7 byte2 */
219 	u8 ccs_qreq_test;	/* CDM + 0x1f  reg7 byte3 */
220 
221 	u8 soft_reset;		/* CDM + 0x20  u8 byte0 */
222 	u8 no_ckstp;		/* CDM + 0x21  u8 byte0 */
223 	u8 reserved2[2];	/* CDM + 0x22  u8 byte1,2,3 */
224 
225 	u8 pll_lock;		/* CDM + 0x24  reg9 byte0 */
226 	u8 pll_looselock;	/* CDM + 0x25  reg9 byte1 */
227 	u8 pll_sm_lockwin;	/* CDM + 0x26  reg9 byte2 */
228 	u8 reserved3;		/* CDM + 0x27  reg9 byte3 */
229 
230 	u16 reserved4;		/* CDM + 0x28  reg10 byte0,1 */
231 	u16 mclken_div_psc1;	/* CDM + 0x2a  reg10 byte2,3 */
232 
233 	u16 reserved5;		/* CDM + 0x2c  reg11 byte0,1 */
234 	u16 mclken_div_psc2;	/* CDM + 0x2e  reg11 byte2,3 */
235 
236 	u16 reserved6;		/* CDM + 0x30  reg12 byte0,1 */
237 	u16 mclken_div_psc3;	/* CDM + 0x32  reg12 byte2,3 */
238 
239 	u16 reserved7;		/* CDM + 0x34  reg13 byte0,1 */
240 	u16 mclken_div_psc6;	/* CDM + 0x36  reg13 byte2,3 */
241 };
242 
243 /* Interrupt controller Register set */
244 struct mpc52xx_intr {
245 	u32 per_mask;		/* INTR + 0x00 */
246 	u32 per_pri1;		/* INTR + 0x04 */
247 	u32 per_pri2;		/* INTR + 0x08 */
248 	u32 per_pri3;		/* INTR + 0x0c */
249 	u32 ctrl;		/* INTR + 0x10 */
250 	u32 main_mask;		/* INTR + 0x14 */
251 	u32 main_pri1;		/* INTR + 0x18 */
252 	u32 main_pri2;		/* INTR + 0x1c */
253 	u32 reserved1;		/* INTR + 0x20 */
254 	u32 enc_status;		/* INTR + 0x24 */
255 	u32 crit_status;	/* INTR + 0x28 */
256 	u32 main_status;	/* INTR + 0x2c */
257 	u32 per_status;		/* INTR + 0x30 */
258 	u32 reserved2;		/* INTR + 0x34 */
259 	u32 per_error;		/* INTR + 0x38 */
260 };
261 
262 #endif /* __ASSEMBLY__ */
263 
264 
265 /* ========================================================================= */
266 /* Prototypes for MPC52xx sysdev                                             */
267 /* ========================================================================= */
268 
269 #ifndef __ASSEMBLY__
270 
271 /* mpc52xx_common.c */
272 extern void mpc5200_setup_xlb_arbiter(void);
273 extern void mpc52xx_declare_of_platform_devices(void);
274 extern int mpc5200_psc_ac97_gpio_reset(int psc_number);
275 extern void mpc52xx_map_common_devices(void);
276 extern int mpc52xx_set_psc_clkdiv(int psc_id, int clkdiv);
277 extern unsigned int mpc52xx_get_xtal_freq(struct device_node *node);
278 extern void __noreturn mpc52xx_restart(char *cmd);
279 
280 /* mpc52xx_gpt.c */
281 struct mpc52xx_gpt_priv;
282 extern struct mpc52xx_gpt_priv *mpc52xx_gpt_from_irq(int irq);
283 extern int mpc52xx_gpt_start_timer(struct mpc52xx_gpt_priv *gpt, u64 period,
284                             int continuous);
285 extern u64 mpc52xx_gpt_timer_period(struct mpc52xx_gpt_priv *gpt);
286 extern int mpc52xx_gpt_stop_timer(struct mpc52xx_gpt_priv *gpt);
287 
288 /* mpc52xx_lpbfifo.c */
289 #define MPC52XX_LPBFIFO_FLAG_READ		(0)
290 #define MPC52XX_LPBFIFO_FLAG_WRITE		(1<<0)
291 #define MPC52XX_LPBFIFO_FLAG_NO_INCREMENT	(1<<1)
292 #define MPC52XX_LPBFIFO_FLAG_NO_DMA		(1<<2)
293 #define MPC52XX_LPBFIFO_FLAG_POLL_DMA		(1<<3)
294 
295 struct mpc52xx_lpbfifo_request {
296 	struct list_head list;
297 
298 	/* localplus bus address */
299 	unsigned int cs;
300 	size_t offset;
301 
302 	/* Memory address */
303 	void *data;
304 	phys_addr_t data_phys;
305 
306 	/* Details of transfer */
307 	size_t size;
308 	size_t pos;	/* current position of transfer */
309 	int flags;
310 	int defer_xfer_start;
311 
312 	/* What to do when finished */
313 	void (*callback)(struct mpc52xx_lpbfifo_request *);
314 
315 	void *priv;		/* Driver private data */
316 
317 	/* statistics */
318 	int irq_count;
319 	int irq_ticks;
320 	u8 last_byte;
321 	int buffer_not_done_cnt;
322 };
323 
324 extern int mpc52xx_lpbfifo_submit(struct mpc52xx_lpbfifo_request *req);
325 extern void mpc52xx_lpbfifo_abort(struct mpc52xx_lpbfifo_request *req);
326 extern void mpc52xx_lpbfifo_poll(void);
327 extern int mpc52xx_lpbfifo_start_xfer(struct mpc52xx_lpbfifo_request *req);
328 
329 /* mpc52xx_pic.c */
330 extern void mpc52xx_init_irq(void);
331 extern unsigned int mpc52xx_get_irq(void);
332 
333 /* mpc52xx_pci.c */
334 #ifdef CONFIG_PCI
335 extern int __init mpc52xx_add_bridge(struct device_node *node);
336 extern void __init mpc52xx_setup_pci(void);
337 #else
mpc52xx_setup_pci(void)338 static inline void mpc52xx_setup_pci(void) { }
339 #endif
340 
341 #endif /* __ASSEMBLY__ */
342 
343 #ifdef CONFIG_PM
344 struct mpc52xx_suspend {
345 	void (*board_suspend_prepare)(void __iomem *mbar);
346 	void (*board_resume_finish)(void __iomem *mbar);
347 };
348 
349 extern struct mpc52xx_suspend mpc52xx_suspend;
350 extern int __init mpc52xx_pm_init(void);
351 extern int mpc52xx_set_wakeup_gpio(u8 pin, u8 level);
352 
353 /* lite5200 calls mpc5200 suspend functions, so here they are */
354 extern int mpc52xx_pm_prepare(void);
355 extern int mpc52xx_pm_enter(suspend_state_t);
356 extern void mpc52xx_pm_finish(void);
357 extern char saved_sram[0x4000]; /* reuse buffer from mpc52xx suspend */
358 
359 #ifdef CONFIG_PPC_LITE5200
360 int __init lite5200_pm_init(void);
361 #endif
362 #endif /* CONFIG_PM */
363 
364 #endif /* __ASM_POWERPC_MPC52xx_H__ */
365 
366