2 * (C) Copyright 2001-2003
3 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
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,
25 #include <asm/processor.h>
33 DECLARE_GLOBAL_DATA_PTR;
35 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
36 extern void lxt971_no_sleep(void);
38 /* fpga configuration data - gzip compressed and generated by bin2c */
39 const unsigned char fpgadata[] =
45 * include common fpga code (for esd boards)
47 #include "../common/fpga.c"
49 int board_early_init_f(void)
52 * IRQ 0-15 405GP internally generated; active high; level sensitive
53 * IRQ 16 405GP internally generated; active low; level sensitive
55 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
56 * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
57 * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
58 * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
59 * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
60 * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
61 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
63 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
64 mtdcr(UIC0ER, 0x00000000); /* disable all ints */
65 mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/
66 mtdcr(UIC0PR, 0xFFFFFF99); /* set int polarities */
67 mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
68 mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest prio */
69 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
72 * EBC Configuration Register: set ready timeout to
73 * 512 ebc-clks -> ca. 15 us
75 mtebc(EBC0_CFG, 0xa8400000); /* ebc always driven */
84 ulong len = sizeof(fpgadata);
89 /* adjust flash start and offset */
90 gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
91 gd->bd->bi_flashoffset = 0;
93 dst = malloc(CONFIG_SYS_FPGA_MAX_SIZE);
94 if (gunzip(dst, CONFIG_SYS_FPGA_MAX_SIZE,
95 (uchar *)fpgadata, &len) != 0) {
96 printf("GUNZIP ERROR - must RESET board to recover\n");
97 do_reset(NULL, 0, 0, NULL);
100 status = fpga_boot(dst, len);
102 printf("\nFPGA: Booting failed ");
104 case ERROR_FPGA_PRG_INIT_LOW:
105 printf("(Timeout: INIT not low "
106 "after asserting PROGRAM*)\n");
108 case ERROR_FPGA_PRG_INIT_HIGH:
109 printf("(Timeout: INIT not high "
110 "after deasserting PROGRAM*)\n");
112 case ERROR_FPGA_PRG_DONE:
113 printf("(Timeout: DONE not high "
114 "after programming FPGA)\n");
118 /* display infos on fpgaimage */
120 for (i=0; i<4; i++) {
122 printf("FPGA: %s\n", &(dst[index+1]));
127 for (i=20; i>0; i--) {
128 printf("Rebooting in %2d seconds \r",i);
129 for (index=0;index<1000;index++)
133 do_reset(NULL, 0, 0, NULL);
138 /* display infos on fpgaimage */
140 for (i=0; i<4; i++) {
142 printf("%s ", &(dst[index+1]));
150 * Reset FPGA via FPGA_DATA pin
152 SET_FPGA(FPGA_PRG | FPGA_CLK);
153 udelay(1000); /* wait 1ms */
154 SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);
155 udelay(1000); /* wait 1ms */
158 * Reset external DUARTs
160 out_be32((void*)GPIO0_OR,
161 in_be32((void*)GPIO0_OR) | CONFIG_SYS_DUART_RST);
163 out_be32((void*)GPIO0_OR,
164 in_be32((void*)GPIO0_OR) & ~CONFIG_SYS_DUART_RST);
168 * Set NAND-FLASH GPIO signals to default
170 out_be32((void*)GPIO0_OR,
171 in_be32((void*)GPIO0_OR) &
172 ~(CONFIG_SYS_NAND_CLE | CONFIG_SYS_NAND_ALE));
173 out_be32((void*)GPIO0_OR,
174 in_be32((void*)GPIO0_OR) | CONFIG_SYS_NAND_CE);
177 * Setup EEPROM write protection
179 out_be32((void*)GPIO0_OR,
180 in_be32((void*)GPIO0_OR) | CONFIG_SYS_EEPROM_WP);
181 out_be32((void*)GPIO0_TCR,
182 in_be32((void*)GPIO0_TCR) | CONFIG_SYS_EEPROM_WP);
185 * Enable interrupts in exar duart mcr[3]
187 out_8((void *)DUART0_BA + 4, 0x08);
188 out_8((void *)DUART1_BA + 4, 0x08);
191 * Enable auto RS485 mode in 2nd external uart
193 out_8((void *)DUART1_BA + 3, 0xbf); /* write LCR */
194 fctr = in_8((void *)DUART1_BA + 1); /* read FCTR */
195 fctr |= 0x08; /* enable RS485 mode */
196 out_8((void *)DUART1_BA + 1, fctr); /* write FCTR */
197 out_8((void *)DUART1_BA + 3, 0); /* write LCR */
200 * Init magnetic couplers
202 if (!getenv("noinitcoupler")) {
203 init_coupler(CAN0_BA);
204 init_coupler(CAN1_BA);
210 * Check Board Identity:
215 int i = getenv_r("serial#", str, sizeof(str));
220 puts("### No HW ID - assuming PLU405");
228 #ifdef CONFIG_IDE_RESET
229 #define FPGA_CTRL (CONFIG_SYS_FPGA_BASE_ADDR + CONFIG_SYS_FPGA_CTRL)
230 void ide_set_reset(int on)
233 * Assert or deassert CompactFlash Reset Pin
235 if (on) { /* assert RESET */
236 out_be16((void *)FPGA_CTRL,
237 in_be16((void *)FPGA_CTRL) &
238 ~CONFIG_SYS_FPGA_CTRL_CF_RESET);
239 } else { /* release RESET */
240 out_be16((void *)FPGA_CTRL,
241 in_be16((void *)FPGA_CTRL) |
242 CONFIG_SYS_FPGA_CTRL_CF_RESET);
245 #endif /* CONFIG_IDE_RESET */
249 #ifdef CONFIG_LXT971_NO_SLEEP
252 * Disable sleep mode in LXT971
258 #if defined(CONFIG_SYS_EEPROM_WREN)
259 /* Input: <dev_addr> I2C address of EEPROM device to enable.
260 * <state> -1: deliver current state
263 * Returns: -1: wrong device address
264 * 0: dis-/en- able done
265 * 0/1: current state if <state> was -1.
267 int eeprom_write_enable(unsigned dev_addr, int state)
269 if (CONFIG_SYS_I2C_EEPROM_ADDR != dev_addr) {
274 /* Enable write access, clear bit GPIO0. */
275 out_be32((void*)GPIO0_OR,
276 in_be32((void*)GPIO0_OR) &
277 ~CONFIG_SYS_EEPROM_WP);
281 /* Disable write access, set bit GPIO0. */
282 out_be32((void*)GPIO0_OR,
283 in_be32((void*)GPIO0_OR) |
284 CONFIG_SYS_EEPROM_WP);
288 /* Read current status back. */
289 state = ((in_be32((void*)GPIO0_OR) &
290 CONFIG_SYS_EEPROM_WP) == 0);
297 int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
299 int query = argc == 1;
303 /* Query write access state. */
304 state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR, -1);
306 puts("Query of write access state failed.\n");
308 printf("Write access for device 0x%0x is %sabled.\n",
309 CONFIG_SYS_I2C_EEPROM_ADDR,
310 state ? "en" : "dis");
314 if (argv[1][0] == '0') {
315 /* Disable write access. */
316 state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR,
319 /* Enable write access. */
320 state = eeprom_write_enable(CONFIG_SYS_I2C_EEPROM_ADDR,
324 puts("Setup of write access state failed.\n");
330 U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
331 "Enable / disable / query EEPROM write access",
334 #endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */