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7b5611cd DZ |
1 | /* |
2 | * (C) Copyright 2008, 2009 Andreas Pfefferle, | |
3 | * DENX Software Engineering, ap@denx.de. | |
4 | * (C) Copyright 2009 Detlev Zundel, | |
5 | * DENX Software Engineering, dzu@denx.de. | |
6 | * | |
1a459660 | 7 | * SPDX-License-Identifier: GPL-2.0+ |
7b5611cd DZ |
8 | */ |
9 | ||
10 | #include <asm/io.h> | |
11 | #include <common.h> | |
12 | #include <config.h> | |
24b852a7 | 13 | #include <console.h> |
7b5611cd DZ |
14 | #include <mpc5xxx.h> |
15 | #include <pci.h> | |
16 | ||
17 | #include <command.h> | |
18 | ||
19 | /* This is needed for the includes in ns16550.h */ | |
20 | #define CONFIG_SYS_NS16550_REG_SIZE 1 | |
21 | #include <ns16550.h> | |
22 | ||
23 | #define GPIO_BASE ((u_char *)CONFIG_SYS_CS3_START) | |
24 | ||
25 | #define DIGIN_TOUCHSCR_MASK 0x00003000 /* Inputs 12-13 */ | |
26 | #define DIGIN_KEYB_MASK 0x00010000 /* Input 16 */ | |
27 | ||
28 | #define DIGIN_DRAWER_SW1 0x00400000 /* Input 22 */ | |
29 | #define DIGIN_DRAWER_SW2 0x00800000 /* Input 23 */ | |
30 | ||
31 | #define DIGIO_LED0 0x00000001 /* Output 0 */ | |
32 | #define DIGIO_LED1 0x00000002 /* Output 1 */ | |
33 | #define DIGIO_LED2 0x00000004 /* Output 2 */ | |
34 | #define DIGIO_LED3 0x00000008 /* Output 3 */ | |
35 | #define DIGIO_LED4 0x00000010 /* Output 4 */ | |
36 | #define DIGIO_LED5 0x00000020 /* Output 5 */ | |
37 | ||
38 | #define DIGIO_DRAWER1 0x00000100 /* Output 8 */ | |
39 | #define DIGIO_DRAWER2 0x00000200 /* Output 9 */ | |
40 | ||
41 | #define SERIAL_PORT_BASE ((u_char *)CONFIG_SYS_CS2_START) | |
42 | ||
43 | #define PSC_OP1_RTS 0x01 | |
44 | #define PSC_OP0_RTS 0x01 | |
45 | ||
46 | /* | |
47 | * Table with supported baudrates (defined in inka4x0.h) | |
48 | */ | |
49 | static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE; | |
50 | #define N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0])) | |
51 | ||
52 | static unsigned int inka_digin_get_input(void) | |
53 | { | |
54 | return in_8(GPIO_BASE + 0) << 0 | in_8(GPIO_BASE + 1) << 8 | | |
55 | in_8(GPIO_BASE + 2) << 16 | in_8(GPIO_BASE + 3) << 24; | |
56 | } | |
57 | ||
58 | #define LED_HIGH(NUM) \ | |
59 | do { \ | |
60 | setbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \ | |
61 | } while (0) | |
62 | ||
63 | #define LED_LOW(NUM) \ | |
64 | do { \ | |
65 | clrbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \ | |
66 | } while (0) | |
67 | ||
68 | #define CHECK_LED(NUM) \ | |
69 | do { \ | |
70 | if (state & (1 << NUM)) { \ | |
71 | LED_HIGH(NUM); \ | |
72 | } else { \ | |
73 | LED_LOW(NUM); \ | |
74 | } \ | |
75 | } while (0) | |
76 | ||
77 | static void inka_digio_set_output(unsigned int state, int which) | |
78 | { | |
79 | volatile struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO; | |
80 | ||
81 | if (which == 0) { | |
82 | /* other */ | |
83 | CHECK_LED(0); | |
84 | CHECK_LED(1); | |
85 | CHECK_LED(2); | |
86 | CHECK_LED(3); | |
87 | CHECK_LED(4); | |
88 | CHECK_LED(5); | |
89 | } else { | |
90 | if (which == 1) { | |
91 | /* drawer1 */ | |
92 | if (state) { | |
93 | clrbits_be32(&gpio->simple_dvo, 0x1000); | |
94 | udelay(1); | |
95 | setbits_be32(&gpio->simple_dvo, 0x1000); | |
96 | } else { | |
97 | setbits_be32(&gpio->simple_dvo, 0x1000); | |
98 | udelay(1); | |
99 | clrbits_be32(&gpio->simple_dvo, 0x1000); | |
100 | } | |
101 | } | |
102 | if (which == 2) { | |
103 | /* drawer 2 */ | |
104 | if (state) { | |
105 | clrbits_be32(&gpio->simple_dvo, 0x2000); | |
106 | udelay(1); | |
107 | setbits_be32(&gpio->simple_dvo, 0x2000); | |
108 | } else { | |
109 | setbits_be32(&gpio->simple_dvo, 0x2000); | |
110 | udelay(1); | |
111 | clrbits_be32(&gpio->simple_dvo, 0x2000); | |
112 | } | |
113 | } | |
114 | } | |
115 | udelay(1); | |
116 | } | |
117 | ||
118 | static int do_inkadiag_io(cmd_tbl_t *cmdtp, int flag, int argc, | |
54841ab5 | 119 | char * const argv[]) { |
7b5611cd DZ |
120 | unsigned int state, val; |
121 | ||
122 | switch (argc) { | |
123 | case 3: | |
124 | /* Write a value */ | |
125 | val = simple_strtol(argv[2], NULL, 16); | |
126 | ||
127 | if (strcmp(argv[1], "drawer1") == 0) { | |
128 | inka_digio_set_output(val, 1); | |
129 | } else if (strcmp(argv[1], "drawer2") == 0) { | |
130 | inka_digio_set_output(val, 2); | |
131 | } else if (strcmp(argv[1], "other") == 0) | |
132 | inka_digio_set_output(val, 0); | |
133 | else { | |
134 | printf("Invalid argument: %s\n", argv[1]); | |
135 | return -1; | |
136 | } | |
137 | /* fall through */ | |
138 | case 2: | |
139 | /* Read a value */ | |
140 | state = inka_digin_get_input(); | |
141 | ||
142 | if (strcmp(argv[1], "drawer1") == 0) { | |
143 | val = (state & DIGIN_DRAWER_SW1) >> (ffs(DIGIN_DRAWER_SW1) - 1); | |
144 | } else if (strcmp(argv[1], "drawer2") == 0) { | |
145 | val = (state & DIGIN_DRAWER_SW2) >> (ffs(DIGIN_DRAWER_SW2) - 1); | |
146 | } else if (strcmp(argv[1], "other") == 0) { | |
147 | val = ((state & DIGIN_KEYB_MASK) >> (ffs(DIGIN_KEYB_MASK) - 1)) | |
148 | | (state & DIGIN_TOUCHSCR_MASK) >> (ffs(DIGIN_TOUCHSCR_MASK) - 2); | |
149 | } else { | |
150 | printf("Invalid argument: %s\n", argv[1]); | |
151 | return -1; | |
152 | } | |
153 | printf("exit code: 0x%X\n", val); | |
154 | return 0; | |
155 | default: | |
47e26b1b | 156 | return cmd_usage(cmdtp); |
7b5611cd DZ |
157 | } |
158 | ||
159 | return -1; | |
160 | } | |
161 | ||
162 | DECLARE_GLOBAL_DATA_PTR; | |
163 | ||
164 | static int ser_init(volatile struct mpc5xxx_psc *psc, int baudrate) | |
165 | { | |
166 | unsigned long baseclk; | |
167 | int div; | |
168 | ||
169 | /* reset PSC */ | |
170 | out_8(&psc->command, PSC_SEL_MODE_REG_1); | |
171 | ||
172 | /* select clock sources */ | |
173 | ||
174 | out_be16(&psc->psc_clock_select, 0); | |
b2877496 | 175 | baseclk = (gd->arch.ipb_clk + 16) / 32; |
7b5611cd DZ |
176 | |
177 | /* switch to UART mode */ | |
178 | out_be32(&psc->sicr, 0); | |
179 | ||
180 | /* configure parity, bit length and so on */ | |
181 | ||
182 | out_8(&psc->mode, PSC_MODE_8_BITS | PSC_MODE_PARNONE); | |
183 | out_8(&psc->mode, PSC_MODE_ONE_STOP); | |
184 | ||
185 | /* set up UART divisor */ | |
186 | div = (baseclk + (baudrate / 2)) / baudrate; | |
187 | out_8(&psc->ctur, (div >> 8) & 0xff); | |
188 | out_8(&psc->ctlr, div & 0xff); | |
189 | ||
190 | /* disable all interrupts */ | |
191 | out_be16(&psc->psc_imr, 0); | |
192 | ||
193 | /* reset and enable Rx/Tx */ | |
194 | out_8(&psc->command, PSC_RST_RX); | |
195 | out_8(&psc->command, PSC_RST_TX); | |
196 | out_8(&psc->command, PSC_RX_ENABLE | PSC_TX_ENABLE); | |
197 | ||
198 | return 0; | |
199 | } | |
200 | ||
201 | static void ser_putc(volatile struct mpc5xxx_psc *psc, const char c) | |
202 | { | |
203 | /* Wait 1 second for last character to go. */ | |
204 | int i = 0; | |
205 | ||
206 | while (!(psc->psc_status & PSC_SR_TXEMP) && (i++ < 1000000/10)) | |
207 | udelay(10); | |
208 | psc->psc_buffer_8 = c; | |
209 | ||
210 | } | |
211 | ||
212 | static int ser_getc(volatile struct mpc5xxx_psc *psc) | |
213 | { | |
214 | /* Wait for a character to arrive. */ | |
215 | int i = 0; | |
216 | ||
217 | while (!(in_be16(&psc->psc_status) & PSC_SR_RXRDY) && (i++ < 1000000/10)) | |
218 | udelay(10); | |
219 | ||
220 | return in_8(&psc->psc_buffer_8); | |
221 | } | |
222 | ||
223 | static int do_inkadiag_serial(cmd_tbl_t *cmdtp, int flag, int argc, | |
54841ab5 | 224 | char * const argv[]) { |
7b5611cd DZ |
225 | volatile struct NS16550 *uart; |
226 | volatile struct mpc5xxx_psc *psc; | |
227 | unsigned int num, mode; | |
228 | int combrd, baudrate, i, j, len; | |
229 | int address; | |
230 | ||
47e26b1b WD |
231 | if (argc < 5) |
232 | return cmd_usage(cmdtp); | |
7b5611cd DZ |
233 | |
234 | argc--; | |
235 | argv++; | |
236 | ||
237 | num = simple_strtol(argv[0], NULL, 0); | |
238 | if (num < 0 || num > 11) { | |
239 | printf("invalid argument for num: %d\n", num); | |
240 | return -1; | |
241 | } | |
242 | ||
243 | mode = simple_strtol(argv[1], NULL, 0); | |
244 | ||
245 | combrd = 0; | |
246 | baudrate = simple_strtoul(argv[2], NULL, 10); | |
247 | for (i=0; i<N_BAUDRATES; ++i) { | |
248 | if (baudrate == baudrate_table[i]) | |
249 | break; | |
250 | } | |
251 | if (i == N_BAUDRATES) { | |
252 | printf("## Baudrate %d bps not supported\n", | |
253 | baudrate); | |
254 | return 1; | |
255 | } | |
256 | combrd = 115200 / baudrate; | |
257 | ||
258 | uart = (struct NS16550 *)(SERIAL_PORT_BASE + (num << 3)); | |
259 | ||
260 | printf("Testing uart %d.\n\n", num); | |
261 | ||
262 | if ((num >= 0) && (num <= 7)) { | |
263 | if (mode & 1) { | |
264 | /* turn on 'loopback' mode */ | |
200779e3 | 265 | out_8(&uart->mcr, UART_MCR_LOOP); |
7b5611cd DZ |
266 | } else { |
267 | /* | |
268 | * establish the UART's operational parameters | |
269 | * set DLAB=1, so rbr accesses DLL | |
270 | */ | |
200779e3 | 271 | out_8(&uart->lcr, UART_LCR_DLAB); |
7b5611cd DZ |
272 | /* set baudrate */ |
273 | out_8(&uart->rbr, combrd); | |
274 | /* set data-format: 8-N-1 */ | |
200779e3 | 275 | out_8(&uart->lcr, UART_LCR_WLS_8); |
7b5611cd DZ |
276 | } |
277 | ||
278 | if (mode & 2) { | |
279 | /* set request to send */ | |
200779e3 | 280 | out_8(&uart->mcr, UART_MCR_RTS); |
7b5611cd DZ |
281 | udelay(10); |
282 | /* check clear to send */ | |
200779e3 | 283 | if ((in_8(&uart->msr) & UART_MSR_CTS) == 0x00) |
7b5611cd DZ |
284 | return -1; |
285 | } | |
286 | if (mode & 4) { | |
287 | /* set data terminal ready */ | |
200779e3 | 288 | out_8(&uart->mcr, UART_MCR_DTR); |
7b5611cd DZ |
289 | udelay(10); |
290 | /* check data set ready and carrier detect */ | |
200779e3 DZ |
291 | if ((in_8(&uart->msr) & (UART_MSR_DSR | UART_MSR_DCD)) |
292 | != (UART_MSR_DSR | UART_MSR_DCD)) | |
7b5611cd DZ |
293 | return -1; |
294 | } | |
295 | ||
296 | /* write each message-character, read it back, and display it */ | |
297 | for (i = 0, len = strlen(argv[3]); i < len; ++i) { | |
298 | j = 0; | |
200779e3 | 299 | while ((in_8(&uart->lsr) & UART_LSR_THRE) == 0x00) { |
7b5611cd DZ |
300 | if (j++ > CONFIG_SYS_HZ) |
301 | break; | |
302 | udelay(10); | |
303 | } | |
304 | out_8(&uart->rbr, argv[3][i]); | |
305 | j = 0; | |
200779e3 | 306 | while ((in_8(&uart->lsr) & UART_LSR_DR) == 0x00) { |
7b5611cd DZ |
307 | if (j++ > CONFIG_SYS_HZ) |
308 | break; | |
309 | udelay(10); | |
310 | } | |
311 | printf("%c", in_8(&uart->rbr)); | |
312 | } | |
313 | printf("\n\n"); | |
314 | out_8(&uart->mcr, 0x00); | |
315 | } else { | |
316 | address = 0; | |
317 | ||
318 | switch (num) { | |
319 | case 8: | |
320 | address = MPC5XXX_PSC6; | |
321 | break; | |
322 | case 9: | |
323 | address = MPC5XXX_PSC3; | |
324 | break; | |
325 | case 10: | |
326 | address = MPC5XXX_PSC2; | |
327 | break; | |
328 | case 11: | |
329 | address = MPC5XXX_PSC1; | |
330 | break; | |
331 | } | |
332 | psc = (struct mpc5xxx_psc *)address; | |
333 | ser_init(psc, simple_strtol(argv[2], NULL, 0)); | |
334 | if (mode & 2) { | |
335 | /* set request to send */ | |
336 | out_8(&psc->op0, PSC_OP0_RTS); | |
337 | udelay(10); | |
338 | /* check clear to send */ | |
339 | if ((in_8(&psc->ip) & PSC_IPCR_CTS) == 0) | |
340 | return -1; | |
341 | } | |
342 | len = strlen(argv[3]); | |
343 | for (i = 0; i < len; ++i) { | |
344 | ser_putc(psc, argv[3][i]); | |
345 | printf("%c", ser_getc(psc)); | |
346 | } | |
347 | printf("\n\n"); | |
348 | } | |
349 | return 0; | |
350 | } | |
351 | ||
352 | #define BUZZER_GPT (MPC5XXX_GPT + 0x60) /* GPT6 */ | |
353 | static void buzzer_turn_on(unsigned int freq) | |
354 | { | |
355 | volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT); | |
356 | ||
b2877496 | 357 | const u32 prescale = gd->arch.ipb_clk / freq / 128; |
7b5611cd DZ |
358 | const u32 count = 128; |
359 | const u32 width = 64; | |
360 | ||
361 | gpt->cir = (prescale << 16) | count; | |
362 | gpt->pwmcr = width << 16; | |
363 | gpt->emsr = 3; /* Timer enabled for PWM */ | |
364 | } | |
365 | ||
366 | static void buzzer_turn_off(void) | |
367 | { | |
368 | volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT); | |
369 | ||
370 | gpt->emsr = 0; | |
371 | } | |
372 | ||
373 | static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc, | |
54841ab5 | 374 | char * const argv[]) { |
7b5611cd DZ |
375 | |
376 | unsigned int period, freq; | |
377 | int prev, i; | |
378 | ||
47e26b1b WD |
379 | if (argc != 3) |
380 | return cmd_usage(cmdtp); | |
7b5611cd DZ |
381 | |
382 | argc--; | |
383 | argv++; | |
384 | ||
385 | period = simple_strtol(argv[0], NULL, 0); | |
386 | if (!period) | |
387 | printf("Zero period is senseless\n"); | |
388 | argc--; | |
389 | argv++; | |
390 | ||
391 | freq = simple_strtol(argv[0], NULL, 0); | |
392 | /* avoid zero prescale in buzzer_turn_on() */ | |
b2877496 | 393 | if (freq > gd->arch.ipb_clk / 128) { |
7b5611cd | 394 | printf("%dHz exceeds maximum (%ldHz)\n", freq, |
b2877496 | 395 | gd->arch.ipb_clk / 128); |
7b5611cd DZ |
396 | } else if (!freq) |
397 | printf("Zero frequency is senseless\n"); | |
398 | else | |
399 | buzzer_turn_on(freq); | |
400 | ||
401 | clear_ctrlc(); | |
402 | prev = disable_ctrlc(0); | |
403 | ||
404 | printf("Buzzing for %d ms. Type ^C to abort!\n\n", period); | |
405 | ||
406 | i = 0; | |
407 | while (!ctrlc() && (i++ < CONFIG_SYS_HZ)) | |
408 | udelay(period); | |
409 | ||
410 | clear_ctrlc(); | |
411 | disable_ctrlc(prev); | |
412 | ||
413 | buzzer_turn_off(); | |
414 | ||
415 | return 0; | |
416 | } | |
417 | ||
54841ab5 | 418 | static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); |
7b5611cd DZ |
419 | |
420 | cmd_tbl_t cmd_inkadiag_sub[] = { | |
421 | U_BOOT_CMD_MKENT(io, 1, 1, do_inkadiag_io, "read digital input", | |
a89c33db | 422 | "<drawer1|drawer2|other> [value] - get or set specified signal"), |
7b5611cd DZ |
423 | U_BOOT_CMD_MKENT(serial, 4, 1, do_inkadiag_serial, "test serial port", |
424 | "<num> <mode> <baudrate> <msg> - test uart num [0..11] in mode\n" | |
a89c33db | 425 | "and baudrate with msg"), |
7b5611cd | 426 | U_BOOT_CMD_MKENT(buzzer, 2, 1, do_inkadiag_buzzer, "activate buzzer", |
a89c33db | 427 | "<period> <freq> - turn buzzer on for period ms with freq hz"), |
7b5611cd | 428 | U_BOOT_CMD_MKENT(help, 4, 1, do_inkadiag_help, "get help", |
a89c33db | 429 | "[command] - get help for command"), |
7b5611cd DZ |
430 | }; |
431 | ||
432 | static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, | |
54841ab5 | 433 | int argc, char * const argv[]) { |
7b5611cd DZ |
434 | extern int _do_help (cmd_tbl_t *cmd_start, int cmd_items, |
435 | cmd_tbl_t *cmdtp, int flag, | |
54841ab5 | 436 | int argc, char * const argv[]); |
7b5611cd DZ |
437 | /* do_help prints command name - we prepend inkadiag to our subcommands! */ |
438 | #ifdef CONFIG_SYS_LONGHELP | |
439 | puts ("inkadiag "); | |
440 | #endif | |
441 | return _do_help(&cmd_inkadiag_sub[0], | |
442 | ARRAY_SIZE(cmd_inkadiag_sub), cmdtp, flag, argc, argv); | |
443 | } | |
444 | ||
445 | static int do_inkadiag(cmd_tbl_t *cmdtp, int flag, int argc, | |
54841ab5 | 446 | char * const argv[]) { |
7b5611cd DZ |
447 | cmd_tbl_t *c; |
448 | ||
449 | c = find_cmd_tbl(argv[1], &cmd_inkadiag_sub[0], ARRAY_SIZE(cmd_inkadiag_sub)); | |
450 | ||
451 | if (c) { | |
452 | argc--; | |
453 | argv++; | |
454 | return c->cmd(c, flag, argc, argv); | |
455 | } else { | |
456 | /* Unrecognized command */ | |
47e26b1b | 457 | return cmd_usage(cmdtp); |
7b5611cd DZ |
458 | } |
459 | } | |
460 | ||
461 | U_BOOT_CMD(inkadiag, 6, 1, do_inkadiag, | |
462 | "inkadiag - inka diagnosis\n", | |
463 | "[inkadiag what ...]\n" | |
464 | " - perform a diagnosis on inka hardware\n" | |
a89c33db | 465 | "'inkadiag' performs hardware tests."); |