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ARM64: zynqmp: Adjust to new SMC interface to get silicon version
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1 /*
2  * Maintainer : Steve Sakoman <steve@sakoman.com>
3  *
4  * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by
5  *      Richard Woodruff <r-woodruff2@ti.com>
6  *      Syed Mohammed Khasim <khasim@ti.com>
7  *      Sunil Kumar <sunilsaini05@gmail.com>
8  *      Shashi Ranjan <shashiranjanmca05@gmail.com>
9  *
10  * (C) Copyright 2004-2008
11  * Texas Instruments, <www.ti.com>
12  *
13  * SPDX-License-Identifier:     GPL-2.0+
14  */
15 #include <common.h>
16 #include <dm.h>
17 #include <ns16550.h>
18 #include <netdev.h>
19 #include <twl4030.h>
20 #include <linux/mtd/nand.h>
21 #include <asm/io.h>
22 #include <asm/arch/mmc_host_def.h>
23 #include <asm/arch/mux.h>
24 #include <asm/arch/mem.h>
25 #include <asm/arch/sys_proto.h>
26 #include <asm/gpio.h>
27 #include <asm/mach-types.h>
28 #include "overo.h"
29
30 #ifdef CONFIG_USB_EHCI
31 #include <usb.h>
32 #include <asm/ehci-omap.h>
33 #endif
34
35 DECLARE_GLOBAL_DATA_PTR;
36
37 #define TWL4030_I2C_BUS                 0
38 #define EXPANSION_EEPROM_I2C_BUS        2
39 #define EXPANSION_EEPROM_I2C_ADDRESS    0x51
40
41 #define GUMSTIX_EMPTY_EEPROM            0x0
42
43 #define GUMSTIX_SUMMIT                  0x01000200
44 #define GUMSTIX_TOBI                    0x02000200
45 #define GUMSTIX_TOBI_DUO                0x03000200
46 #define GUMSTIX_PALO35                  0x04000200
47 #define GUMSTIX_PALO43                  0x05000200
48 #define GUMSTIX_CHESTNUT43              0x06000200
49 #define GUMSTIX_PINTO                   0x07000200
50 #define GUMSTIX_GALLOP43                0x08000200
51 #define GUMSTIX_ALTO35                  0x09000200
52 #define GUMSTIX_STAGECOACH              0x0A000200
53 #define GUMSTIX_THUMBO                  0x0B000200
54 #define GUMSTIX_TURTLECORE              0x0C000200
55 #define GUMSTIX_ARBOR43C                0x0D000200
56
57 #define ETTUS_USRP_E                    0x01000300
58
59 #define GUMSTIX_NO_EEPROM               0xffffffff
60
61 static struct {
62         unsigned int device_vendor;
63         unsigned char revision;
64         unsigned char content;
65         char fab_revision[8];
66         char env_var[16];
67         char env_setting[64];
68 } expansion_config = {0x0};
69
70 static const struct ns16550_platdata overo_serial = {
71         .base = OMAP34XX_UART3,
72         .reg_shift = 2,
73         .clock = V_NS16550_CLK
74 };
75
76 U_BOOT_DEVICE(overo_uart) = {
77         "ns16550_serial",
78         &overo_serial
79 };
80
81 /*
82  * Routine: get_sdio2_config
83  * Description: Return information about the wifi module connection
84  *              Returns 0 if the module connects though a level translator
85  *              Returns 1 if the module connects directly
86  */
87 int get_sdio2_config(void)
88 {
89         int sdio_direct;
90
91         if (!gpio_request(130, "") && !gpio_request(139, "")) {
92
93                 gpio_direction_output(130, 0);
94                 gpio_direction_input(139);
95
96                 sdio_direct = 1;
97                 gpio_set_value(130, 0);
98                 if (gpio_get_value(139) == 0) {
99                         gpio_set_value(130, 1);
100                         if (gpio_get_value(139) == 1)
101                                 sdio_direct = 0;
102                 }
103
104                 gpio_direction_input(130);
105         } else {
106                 puts("Error: unable to acquire sdio2 clk GPIOs\n");
107                 sdio_direct = -1;
108         }
109
110         return sdio_direct;
111 }
112
113 /*
114  * Routine: get_expansion_id
115  * Description: This function checks for expansion board by checking I2C
116  *              bus 2 for the availability of an AT24C01B serial EEPROM.
117  *              returns the device_vendor field from the EEPROM
118  */
119 unsigned int get_expansion_id(void)
120 {
121         if (expansion_config.device_vendor != 0x0)
122                 return expansion_config.device_vendor;
123
124         i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
125
126         /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */
127         if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
128                 i2c_set_bus_num(TWL4030_I2C_BUS);
129                 return GUMSTIX_NO_EEPROM;
130         }
131
132         /* read configuration data */
133         i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
134                  sizeof(expansion_config));
135
136         i2c_set_bus_num(TWL4030_I2C_BUS);
137
138         return expansion_config.device_vendor;
139 }
140
141 /*
142  * Routine: misc_init_r
143  * Description: Configure board specific parts
144  */
145 int misc_init_r(void)
146 {
147         unsigned int expansion_id;
148
149         twl4030_power_init();
150         twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
151
152         printf("Board revision: %d\n", get_board_revision());
153
154         switch (get_sdio2_config()) {
155         case 0:
156                 puts("Tranceiver detected on mmc2\n");
157                 MUX_OVERO_SDIO2_TRANSCEIVER();
158                 break;
159         case 1:
160                 puts("Direct connection on mmc2\n");
161                 MUX_OVERO_SDIO2_DIRECT();
162                 break;
163         default:
164                 puts("Unable to detect mmc2 connection type\n");
165         }
166
167         expansion_id = get_expansion_id();
168         switch (expansion_id) {
169         case GUMSTIX_SUMMIT:
170                 printf("Recognized Summit expansion board (rev %d %s)\n",
171                         expansion_config.revision,
172                         expansion_config.fab_revision);
173                 MUX_GUMSTIX();
174                 setenv("defaultdisplay", "dvi");
175                 setenv("expansionname", "summit");
176                 break;
177         case GUMSTIX_TOBI:
178                 printf("Recognized Tobi expansion board (rev %d %s)\n",
179                         expansion_config.revision,
180                         expansion_config.fab_revision);
181                 MUX_GUMSTIX();
182                 setenv("defaultdisplay", "dvi");
183                 setenv("expansionname", "tobi");
184                 break;
185         case GUMSTIX_TOBI_DUO:
186                 printf("Recognized Tobi Duo expansion board (rev %d %s)\n",
187                         expansion_config.revision,
188                         expansion_config.fab_revision);
189                 MUX_GUMSTIX();
190                 setenv("expansionname", "tobiduo");
191                 break;
192         case GUMSTIX_PALO35:
193                 printf("Recognized Palo35 expansion board (rev %d %s)\n",
194                         expansion_config.revision,
195                         expansion_config.fab_revision);
196                 MUX_GUMSTIX();
197                 setenv("defaultdisplay", "lcd35");
198                 setenv("expansionname", "palo35");
199                 break;
200         case GUMSTIX_PALO43:
201                 printf("Recognized Palo43 expansion board (rev %d %s)\n",
202                         expansion_config.revision,
203                         expansion_config.fab_revision);
204                 MUX_GUMSTIX();
205                 setenv("defaultdisplay", "lcd43");
206                 setenv("expansionname", "palo43");
207                 break;
208         case GUMSTIX_CHESTNUT43:
209                 printf("Recognized Chestnut43 expansion board (rev %d %s)\n",
210                         expansion_config.revision,
211                         expansion_config.fab_revision);
212                 MUX_GUMSTIX();
213                 setenv("defaultdisplay", "lcd43");
214                 setenv("expansionname", "chestnut43");
215                 break;
216         case GUMSTIX_PINTO:
217                 printf("Recognized Pinto expansion board (rev %d %s)\n",
218                         expansion_config.revision,
219                         expansion_config.fab_revision);
220                 MUX_GUMSTIX();
221                 break;
222         case GUMSTIX_GALLOP43:
223                 printf("Recognized Gallop43 expansion board (rev %d %s)\n",
224                         expansion_config.revision,
225                         expansion_config.fab_revision);
226                 MUX_GUMSTIX();
227                 setenv("defaultdisplay", "lcd43");
228                 setenv("expansionname", "gallop43");
229                 break;
230         case GUMSTIX_ALTO35:
231                 printf("Recognized Alto35 expansion board (rev %d %s)\n",
232                         expansion_config.revision,
233                         expansion_config.fab_revision);
234                 MUX_GUMSTIX();
235                 MUX_ALTO35();
236                 setenv("defaultdisplay", "lcd35");
237                 setenv("expansionname", "alto35");
238                 break;
239         case GUMSTIX_STAGECOACH:
240                 printf("Recognized Stagecoach expansion board (rev %d %s)\n",
241                         expansion_config.revision,
242                         expansion_config.fab_revision);
243                 MUX_GUMSTIX();
244                 break;
245         case GUMSTIX_THUMBO:
246                 printf("Recognized Thumbo expansion board (rev %d %s)\n",
247                         expansion_config.revision,
248                         expansion_config.fab_revision);
249                 MUX_GUMSTIX();
250                 break;
251         case GUMSTIX_TURTLECORE:
252                 printf("Recognized Turtlecore expansion board (rev %d %s)\n",
253                         expansion_config.revision,
254                         expansion_config.fab_revision);
255                 MUX_GUMSTIX();
256                 break;
257         case GUMSTIX_ARBOR43C:
258                 printf("Recognized Arbor43C expansion board (rev %d %s)\n",
259                         expansion_config.revision,
260                         expansion_config.fab_revision);
261                 MUX_GUMSTIX();
262                 MUX_ARBOR43C();
263                 setenv("defaultdisplay", "lcd43");
264                 setenv("expansionname", "arbor43c");
265                 break;
266         case ETTUS_USRP_E:
267                 printf("Recognized Ettus Research USRP-E (rev %d %s)\n",
268                         expansion_config.revision,
269                         expansion_config.fab_revision);
270                 MUX_GUMSTIX();
271                 MUX_USRP_E();
272                 setenv("defaultdisplay", "dvi");
273                 break;
274         case GUMSTIX_NO_EEPROM:
275         case GUMSTIX_EMPTY_EEPROM:
276                 puts("No or empty EEPROM on expansion board\n");
277                 MUX_GUMSTIX();
278                 setenv("expansionname", "tobi");
279                 break;
280         default:
281                 printf("Unrecognized expansion board 0x%08x\n", expansion_id);
282                 break;
283         }
284
285         if (expansion_config.content == 1)
286                 setenv(expansion_config.env_var, expansion_config.env_setting);
287
288         omap_die_id_display();
289
290         if (get_cpu_family() == CPU_OMAP34XX)
291                 setenv("boardname", "overo");
292         else
293                 setenv("boardname", "overo-storm");
294
295         return 0;
296 }
297
298 #if defined(CONFIG_CMD_NET)
299 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */
300 static const u32 gpmc_lan_config[] = {
301         NET_LAN9221_GPMC_CONFIG1,
302         NET_LAN9221_GPMC_CONFIG2,
303         NET_LAN9221_GPMC_CONFIG3,
304         NET_LAN9221_GPMC_CONFIG4,
305         NET_LAN9221_GPMC_CONFIG5,
306         NET_LAN9221_GPMC_CONFIG6,
307         /*CONFIG7- computed as params */
308 };
309
310 /*
311  * Routine: setup_net_chip
312  * Description: Setting up the configuration GPMC registers specific to the
313  *            Ethernet hardware.
314  */
315 static void setup_net_chip(void)
316 {
317         struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
318
319         /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
320         writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
321         /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
322         writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
323         /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
324         writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
325                 &ctrl_base->gpmc_nadv_ale);
326 }
327
328 /*
329  * Routine: reset_net_chip
330  * Description: Reset the Ethernet hardware.
331  */
332 static void reset_net_chip(void)
333 {
334         /* Make GPIO 64 as output pin and send a magic pulse through it */
335         if (!gpio_request(64, "")) {
336                 gpio_direction_output(64, 0);
337                 gpio_set_value(64, 1);
338                 udelay(1);
339                 gpio_set_value(64, 0);
340                 udelay(1);
341                 gpio_set_value(64, 1);
342         }
343 }
344
345 int board_eth_init(bd_t *bis)
346 {
347         unsigned int expansion_id;
348         int rc = 0;
349
350 #ifdef CONFIG_SMC911X
351         expansion_id = get_expansion_id();
352         switch (expansion_id) {
353         case GUMSTIX_TOBI_DUO:
354                 /* second lan chip */
355                 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4],
356                                       0x2B000000, GPMC_SIZE_16M);
357                 /* no break */
358         case GUMSTIX_TOBI:
359         case GUMSTIX_CHESTNUT43:
360         case GUMSTIX_STAGECOACH:
361         case GUMSTIX_NO_EEPROM:
362         case GUMSTIX_EMPTY_EEPROM:
363                 /* first lan chip */
364                 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
365                                       0x2C000000, GPMC_SIZE_16M);
366
367                 setup_net_chip();
368                 reset_net_chip();
369
370                 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
371                 break;
372         default:
373                 break;
374         }
375 #endif
376
377         return rc;
378 }
379 #endif
380
381 #if defined(CONFIG_GENERIC_MMC)
382 int board_mmc_init(bd_t *bis)
383 {
384         return omap_mmc_init(0, 0, 0, -1, -1);
385 }
386 #endif
387
388 #if defined(CONFIG_GENERIC_MMC)
389 void board_mmc_power_init(void)
390 {
391         twl4030_power_mmc_init(0);
392 }
393 #endif
394
395 #if defined(CONFIG_USB_EHCI)
396 static struct omap_usbhs_board_data usbhs_bdata = {
397         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
398         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
399         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
400 };
401
402 #define GUMSTIX_GPIO_USBH_CPEN          168
403 int ehci_hcd_init(int index, enum usb_init_type init,
404                   struct ehci_hccr **hccr, struct ehci_hcor **hcor)
405 {
406         /* Enable USB power */
407         if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen"))
408                 gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1);
409
410         return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
411 }
412
413 int ehci_hcd_stop(void)
414 {
415         /* Disable USB power */
416         gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0);
417         gpio_free(GUMSTIX_GPIO_USBH_CPEN);
418
419         return omap_ehci_hcd_stop();
420 }
421
422 #endif /* CONFIG_USB_EHCI */