2 * (C) Copyright 2001-2003
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>
35 DECLARE_GLOBAL_DATA_PTR;
37 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
38 extern void lxt971_no_sleep(void);
40 /* fpga configuration data - gzip compressed and generated by bin2c */
41 const unsigned char fpgadata[] =
47 * include common fpga code (for esd boards)
49 #include "../common/fpga.c"
53 * include common auto-update code (for esd boards)
55 #include "../common/auto_update.h"
57 au_image_t au_image[] = {
58 {"plu405/preinst.img", 0, -1, AU_SCRIPT},
59 {"plu405/u-boot.img", 0xfffc0000, 0x00040000, AU_FIRMWARE},
60 {"plu405/pImage_${bd_type}", 0x00000000, 0x00100000, AU_NAND},
61 {"plu405/pImage.initrd", 0x00100000, 0x00200000, AU_NAND},
62 {"plu405/yaffsmt2.img", 0x00300000, 0x01c00000, AU_NAND},
63 {"plu405/postinst.img", 0, 0, AU_SCRIPT},
66 int N_AU_IMAGES = (sizeof(au_image) / sizeof(au_image[0]));
70 int gunzip(void *, int, unsigned char *, unsigned long *);
73 int board_early_init_f (void)
76 * IRQ 0-15 405GP internally generated; active high; level sensitive
77 * IRQ 16 405GP internally generated; active low; level sensitive
79 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
80 * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
81 * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
82 * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
83 * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
84 * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
85 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
87 mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
88 mtdcr(uicer, 0x00000000); /* disable all ints */
89 mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/
90 mtdcr(uicpr, 0xFFFFFF99); /* set int polarities */
91 mtdcr(uictr, 0x10000000); /* set int trigger levels */
92 mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority*/
93 mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
96 * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
98 mtebc (epcr, 0xa8400000); /* ebc always driven */
104 int misc_init_f (void)
106 return 0; /* dummy implementation */
110 int misc_init_r (void)
112 unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4);
113 unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4);
115 ulong len = sizeof(fpgadata);
120 /* adjust flash start and offset */
121 gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
122 gd->bd->bi_flashoffset = 0;
124 dst = malloc(CFG_FPGA_MAX_SIZE);
125 if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) {
126 printf ("GUNZIP ERROR - must RESET board to recover\n");
127 do_reset (NULL, 0, 0, NULL);
130 status = fpga_boot(dst, len);
132 printf("\nFPGA: Booting failed ");
134 case ERROR_FPGA_PRG_INIT_LOW:
135 printf("(Timeout: INIT not low after asserting PROGRAM*)\n ");
137 case ERROR_FPGA_PRG_INIT_HIGH:
138 printf("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
140 case ERROR_FPGA_PRG_DONE:
141 printf("(Timeout: DONE not high after programming FPGA)\n ");
145 /* display infos on fpgaimage */
147 for (i=0; i<4; i++) {
149 printf("FPGA: %s\n", &(dst[index+1]));
154 for (i=20; i>0; i--) {
155 printf("Rebooting in %2d seconds \r",i);
156 for (index=0;index<1000;index++)
160 do_reset(NULL, 0, 0, NULL);
165 /* display infos on fpgaimage */
167 for (i=0; i<4; i++) {
169 printf("%s ", &(dst[index+1]));
177 * Reset FPGA via FPGA_DATA pin
179 SET_FPGA(FPGA_PRG | FPGA_CLK);
180 udelay(1000); /* wait 1ms */
181 SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);
182 udelay(1000); /* wait 1ms */
185 * Reset external DUARTs
187 out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CFG_DUART_RST); /* set reset to high */
188 udelay(10); /* wait 10us */
189 out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~CFG_DUART_RST); /* set reset to low */
190 udelay(1000); /* wait 1ms */
193 * Set NAND-FLASH GPIO signals to default
195 out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE));
196 out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CFG_NAND_CE);
199 * Setup EEPROM write protection
201 out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CFG_EEPROM_WP);
202 out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) | CFG_EEPROM_WP);
205 * Enable interrupts in exar duart mcr[3]
207 out_8(duart0_mcr, 0x08);
208 out_8(duart1_mcr, 0x08);
215 * Check Board Identity:
217 int checkboard (void)
220 int i = getenv_r ("serial#", str, sizeof(str));
225 puts ("### No HW ID - assuming PLU405");
235 long int initdram (int board_type)
239 mtdcr(memcfga, mem_mb0cf);
240 val = mfdcr(memcfgd);
242 return (4*1024*1024 << ((val & 0x000e0000) >> 17));
246 #ifdef CONFIG_IDE_RESET
247 void ide_set_reset(int on)
249 volatile unsigned short *fpga_mode =
250 (unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL);
253 * Assert or deassert CompactFlash Reset Pin
255 if (on) { /* assert RESET */
256 *fpga_mode &= ~(CFG_FPGA_CTRL_CF_RESET);
257 } else { /* release RESET */
258 *fpga_mode |= CFG_FPGA_CTRL_CF_RESET;
261 #endif /* CONFIG_IDE_RESET */
266 #ifdef CONFIG_LXT971_NO_SLEEP
269 * Disable sleep mode in LXT971
276 #if defined(CFG_EEPROM_WREN)
277 /* Input: <dev_addr> I2C address of EEPROM device to enable.
278 * <state> -1: deliver current state
281 * Returns: -1: wrong device address
282 * 0: dis-/en- able done
283 * 0/1: current state if <state> was -1.
285 int eeprom_write_enable (unsigned dev_addr, int state)
287 if (CFG_I2C_EEPROM_ADDR != dev_addr) {
292 /* Enable write access, clear bit GPIO0. */
293 out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~CFG_EEPROM_WP);
297 /* Disable write access, set bit GPIO0. */
298 out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CFG_EEPROM_WP);
302 /* Read current status back. */
303 state = (0 == (in_be32((void*)GPIO0_OR) & CFG_EEPROM_WP));
310 int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
312 int query = argc == 1;
316 /* Query write access state. */
317 state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, -1);
319 puts ("Query of write access state failed.\n");
321 printf ("Write access for device 0x%0x is %sabled.\n",
322 CFG_I2C_EEPROM_ADDR, state ? "en" : "dis");
326 if ('0' == argv[1][0]) {
327 /* Disable write access. */
328 state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, 0);
330 /* Enable write access. */
331 state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, 1);
334 puts ("Setup of write access state failed.\n");
341 U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
342 "eepwren - Enable / disable / query EEPROM write access\n",
344 #endif /* #if defined(CFG_EEPROM_WREN) */