3 * DENX Software Engineering
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/arch/pxa-regs.h>
31 DECLARE_GLOBAL_DATA_PTR;
33 /* ------------------------------------------------------------------------- */
35 static void init_DA9030(void);
36 static void keys_init(void);
37 static void get_pressed_keys(uchar *s);
38 static uchar *key_match(uchar *kbd_data);
41 * Miscelaneous platform dependent initialisations
46 /* memory and cpu-speed are setup before relocation */
47 /* so we do _nothing_ here */
49 /* arch number of Lubbock-Board mk@tbd: fix this! */
50 gd->bd->bi_arch_number = MACH_TYPE_LUBBOCK;
52 /* adress of boot parameters */
53 gd->bd->bi_boot_params = 0xa0000100;
58 int board_late_init(void)
60 #ifdef DELTA_CHECK_KEYBD
61 uchar kbd_data[KEYBD_DATALEN];
62 char keybd_env[2 * KEYBD_DATALEN + 1];
65 #endif /* DELTA_CHECK_KEYBD */
67 setenv("stdout", "serial");
68 setenv("stderr", "serial");
70 #ifdef DELTA_CHECK_KEYBD
73 memset(kbd_data, '\0', KEYBD_DATALEN);
75 /* check for pressed keys and setup keybd_env */
76 get_pressed_keys(kbd_data);
78 for (i = 0; i < KEYBD_DATALEN; ++i) {
79 sprintf (keybd_env + i + i, "%02X", kbd_data[i]);
81 setenv ("keybd", keybd_env);
83 str = strdup ((char *)key_match (kbd_data)); /* decode keys */
85 # ifdef CONFIG_PREBOOT /* automatically configure "preboot" command on key match */
86 setenv ("preboot", str); /* set or delete definition */
87 # endif /* CONFIG_PREBOOT */
91 #endif /* DELTA_CHECK_KEYBD */
98 * Magic Key Handling, mainly copied from board/lwmon/lwmon.c
100 #ifdef DELTA_CHECK_KEYBD
102 static uchar kbd_magic_prefix[] = "key_magic";
103 static uchar kbd_command_prefix[] = "key_cmd";
107 * s is a buffer of size KEYBD_DATALEN-1
109 static void get_pressed_keys(uchar *s)
115 *s++ = KEYBD_KP_DKIN0;
117 *s++ = KEYBD_KP_DKIN1;
119 *s++ = KEYBD_KP_DKIN2;
121 *s++ = KEYBD_KP_DKIN5;
124 static void keys_init()
126 CKENB |= CKENB_7_GPIO;
129 /* Configure GPIOs */
130 GPIO127 = 0xa840; /* KP_DKIN0 */
131 GPIO114 = 0xa840; /* KP_DKIN1 */
132 GPIO125 = 0xa840; /* KP_DKIN2 */
133 GPIO118 = 0xa840; /* KP_DKIN5 */
135 /* Configure GPIOs as inputs */
136 GPDR3 &= ~(1<<31 | 1<<18 | 1<<29 | 1<<22);
137 GCDR3 = (1<<31 | 1<<18 | 1<<29 | 1<<22);
142 static int compare_magic (uchar *kbd_data, uchar *str)
144 /* uchar compare[KEYBD_DATALEN-1]; */
145 uchar compare[KEYBD_DATALEN];
149 /* Don't include modifier byte */
150 /* memcpy (compare, kbd_data+1, KEYBD_DATALEN-1); */
151 memcpy (compare, kbd_data, KEYBD_DATALEN);
153 for (; str != NULL; str = (*nxt) ? (uchar *)(nxt+1) : (uchar *)nxt) {
157 c = (uchar) simple_strtoul ((char *)str, (char **) (&nxt), 16);
159 if (str == (uchar *)nxt) { /* invalid character */
164 * Check if this key matches the input.
165 * Set matches to zero, so they match only once
166 * and we can find duplicates or extra keys
168 for (k = 0; k < sizeof(compare); ++k) {
169 if (compare[k] == '\0') /* only non-zero entries */
171 if (c == compare[k]) { /* found matching key */
176 if (k == sizeof(compare)) {
177 return -1; /* unmatched key */
182 * A full match leaves no keys in the `compare' array,
184 for (i = 0; i < sizeof(compare); ++i) {
195 static uchar *key_match (uchar *kbd_data)
197 char magic[sizeof (kbd_magic_prefix) + 1];
199 char *kbd_magic_keys;
202 * The following string defines the characters that can pe appended
203 * to "key_magic" to form the names of environment variables that
204 * hold "magic" key codes, i. e. such key codes that can cause
205 * pre-boot actions. If the string is empty (""), then only
206 * "key_magic" is checked (old behaviour); the string "125" causes
207 * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
209 if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
212 /* loop over all magic keys;
213 * use '\0' suffix in case of empty string
215 for (suffix=(uchar *)kbd_magic_keys; *suffix || suffix==(uchar *)kbd_magic_keys; ++suffix) {
216 sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
218 printf ("### Check magic \"%s\"\n", magic);
220 if (compare_magic(kbd_data, (uchar *)getenv(magic)) == 0) {
221 char cmd_name[sizeof (kbd_command_prefix) + 1];
224 sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
226 cmd = getenv (cmd_name);
228 printf ("### Set PREBOOT to $(%s): \"%s\"\n",
229 cmd_name, cmd ? cmd : "<<NULL>>");
232 return ((uchar *)cmd);
236 printf ("### Delete PREBOOT\n");
242 int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
244 uchar kbd_data[KEYBD_DATALEN];
245 char keybd_env[2 * KEYBD_DATALEN + 1];
249 get_pressed_keys(kbd_data);
251 for (i = 0; i < KEYBD_DATALEN; ++i) {
252 sprintf (keybd_env + i + i, "%02X", kbd_data[i]);
253 printf (" %02x", kbd_data[i]);
256 setenv ("keybd", keybd_env);
262 "kbd - read keyboard status\n",
266 #endif /* DELTA_CHECK_KEYBD */
271 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
272 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
273 gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
274 gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
275 gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
276 gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE;
277 gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
278 gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE;
283 void i2c_init_board()
285 CKENB |= (CKENB_4_I2C);
287 /* setup I2C GPIO's */
288 GPIO32 = 0x801; /* SCL = Alt. Fkt. 1 */
289 GPIO33 = 0x801; /* SDA = Alt. Fkt. 1 */
292 /* initialize the DA9030 Power Controller */
293 static void init_DA9030()
295 uchar addr = (uchar) DA9030_I2C_ADDR, val = 0;
297 CKENB |= CKENB_7_GPIO;
300 /* Rising Edge on EXTON to reset DA9030 */
301 GPIO17 = 0x8800; /* configure GPIO17, no pullup, -down */
302 GPDR0 |= (1<<17); /* GPIO17 is output */
304 GPCR0 = (1<<17); /* drive GPIO17 low */
305 GPSR0 = (1<<17); /* drive GPIO17 high */
307 #if CFG_DA9030_EXTON_DELAY
308 udelay((unsigned long) CFG_DA9030_EXTON_DELAY); /* wait for DA9030 */
310 GPCR0 = (1<<17); /* drive GPIO17 low */
312 /* reset the watchdog and go active (0xec) */
313 val = (SYS_CONTROL_A_HWRES_ENABLE |
315 SYS_CONTROL_A_WDOG_ACTION |
316 SYS_CONTROL_A_WATCHDOG);
317 if(i2c_write(addr, SYS_CONTROL_A, 1, &val, 1)) {
318 printf("Error accessing DA9030 via i2c.\n");
323 if(i2c_write(addr, IRQ_MASK_B, 1, &val, 1)) {
324 printf("Error accessing DA9030 via i2c.\n");
328 i2c_reg_write(addr, REG_CONTROL_1_97, 0xfd); /* disable LDO1, enable LDO6 */
329 i2c_reg_write(addr, LDO2_3, 0xd1); /* LDO2 =1,9V, LDO3=3,1V */
330 i2c_reg_write(addr, LDO4_5, 0xcc); /* LDO2 =1,9V, LDO3=3,1V */
331 i2c_reg_write(addr, LDO6_SIMCP, 0x3e); /* LDO6=3,2V, SIMCP = 5V support */
332 i2c_reg_write(addr, LDO7_8, 0xc9); /* LDO7=2,7V, LDO8=3,0V */
333 i2c_reg_write(addr, LDO9_12, 0xec); /* LDO9=3,0V, LDO12=3,2V */
334 i2c_reg_write(addr, BUCK, 0x0c); /* Buck=1.2V */
335 i2c_reg_write(addr, REG_CONTROL_2_98, 0x7f); /* All LDO'S on 8,9,10,11,12,14 */
336 i2c_reg_write(addr, LDO_10_11, 0xcc); /* LDO10=3.0V LDO11=3.0V */
337 i2c_reg_write(addr, LDO_15, 0xae); /* LDO15=1.8V, dislock first 3bit */
338 i2c_reg_write(addr, LDO_14_16, 0x05); /* LDO14=2.8V, LDO16=NB */
339 i2c_reg_write(addr, LDO_18_19, 0x9c); /* LDO18=3.0V, LDO19=2.7V */
340 i2c_reg_write(addr, LDO_17_SIMCP0, 0x2c); /* LDO17=3.0V, SIMCP=3V support */
341 i2c_reg_write(addr, BUCK2_DVC1, 0x9a); /* Buck2=1.5V plus Update support of 520 MHz */
342 i2c_reg_write(addr, REG_CONTROL_2_18, 0x43); /* Ball on */
343 i2c_reg_write(addr, MISC_CONTROLB, 0x08); /* session valid enable */
344 i2c_reg_write(addr, USBPUMP, 0xc1); /* start pump, ignore HW signals */
346 val = i2c_reg_read(addr, STATUS);
347 if(val & STATUS_CHDET)
348 printf("Charger detected, turning on LED.\n");
350 printf("No charger detetected.\n");
351 /* undervoltage? print error and power down */
357 /* reset the DA9030 watchdog */
358 void hw_watchdog_reset(void)
360 uchar addr = (uchar) DA9030_I2C_ADDR, val = 0;
361 val = i2c_reg_read(addr, SYS_CONTROL_A);
362 val |= SYS_CONTROL_A_WATCHDOG;
363 i2c_reg_write(addr, SYS_CONTROL_A, val);