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git.ipfire.org Git - people/ms/u-boot.git/blob - board/esd/tasreg/tasreg.c
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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,
27 #include <asm/m5249.h>
31 int gunzip(void *, int, unsigned char *, unsigned long *);
32 int do_reset (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[]);
33 int i2c_write(uchar chip
, uint addr
, int alen
, uchar
*buffer
, int len
);
34 int i2c_read(uchar chip
, uint addr
, int alen
, uchar
*buffer
, int len
);
41 /* predefine these here for FPGA programming (before including fpga.c) */
42 #define SET_FPGA(data) mbar2_writeLong(MCFSIM_GPIO1_OUT, data)
43 #define FPGA_DONE_STATE (mbar2_readLong(MCFSIM_GPIO1_READ) & CONFIG_SYS_FPGA_DONE)
44 #define FPGA_INIT_STATE (mbar2_readLong(MCFSIM_GPIO1_READ) & CONFIG_SYS_FPGA_INIT)
45 #define FPGA_PROG_ACTIVE_HIGH /* on this platform is PROG active high! */
46 #define out32(a,b) /* nothing to do (gpio already configured) */
49 /* fpga configuration data - generated by bin2cc */
50 const unsigned char fpgadata
[] =
56 * include common fpga code (for esd boards)
58 #include "../common/fpga.c"
61 int checkboard (void) {
67 val8
= ((uchar
)~((uchar
)mbar2_readLong(MCFSIM_GPIO1_READ
) >> 4)) & 0xf;
68 printf(" (Switch=%1X)\n", val8
);
73 val
= mbar2_readLong(MCFSIM_GPIO1_OUT
) & ~CONFIG_SYS_GPIO1_LED
;
74 mbar2_writeLong(MCFSIM_GPIO1_OUT
, val
); /* Set LED on */
80 phys_size_t
initdram (int board_type
) {
81 unsigned long junk
= 0xa5a59696;
85 * RC = ([(RefreshTime/#rows) / (1/BusClk)] / 16) - 1
88 #ifdef CONFIG_SYS_FAST_CLK
90 * Busclk=70MHz, RefreshTime=64ms, #rows=4096 (4K)
91 * SO=1, NAM=0, COC=0, RTIM=01 (6clk refresh), RC=39
93 mbar_writeShort(MCFSIM_DCR
, 0x8239);
94 #elif CONFIG_SYS_PLL_BYPASS
96 * Busclk=5.6448MHz, RefreshTime=64ms, #rows=8192 (8K)
97 * SO=1, NAM=0, COC=0, RTIM=01 (6clk refresh), RC=02
99 mbar_writeShort(MCFSIM_DCR
, 0x8202);
102 * Busclk=36MHz, RefreshTime=64ms, #rows=4096 (4K)
103 * SO=1, NAM=0, COC=0, RTIM=01 (6clk refresh), RC=22 (562 bus clock cycles)
105 mbar_writeShort(MCFSIM_DCR
, 0x8222);
109 * SDRAM starts at 0x0000_0000, CASL=10, CBM=010, PS=10 (16bit port),
110 * PM=1 (continuous page mode)
113 /* RE=0 (keep auto-refresh disabled while setting up registers) */
114 mbar_writeLong(MCFSIM_DACR0
, 0x00003324);
116 /* BAM=007c (bits 22,21 are bank selects; 256kB blocks) */
117 mbar_writeLong(MCFSIM_DMR0
, 0x01fc0001);
119 /** Precharge sequence **/
120 mbar_writeLong(MCFSIM_DACR0
, 0x0000332c); /* Set DACR0[IP] (bit 3) */
121 *((volatile unsigned long *) 0x00) = junk
; /* write to a memory location to init. precharge */
122 udelay(0x10); /* Allow several Precharge cycles */
124 /** Refresh Sequence **/
125 mbar_writeLong(MCFSIM_DACR0
, 0x0000b324); /* Enable the refresh bit, DACR0[RE] (bit 15) */
126 udelay(0x7d0); /* Allow gobs of refresh cycles */
128 /** Mode Register initialization **/
129 mbar_writeLong(MCFSIM_DACR0
, 0x0000b364); /* Enable DACR0[IMRS] (bit 6); RE remains enabled */
130 *((volatile unsigned long *) 0x800) = junk
; /* Access RAM to initialize the mode register */
132 return CONFIG_SYS_SDRAM_SIZE
* 1024 * 1024;
136 int testdram (void) {
137 /* TODO: XXX XXX XXX */
138 printf ("DRAM test not implemented!\n");
144 int misc_init_r (void)
147 ulong len
= sizeof(fpgadata
);
153 dst
= malloc(CONFIG_SYS_FPGA_MAX_SIZE
);
154 if (gunzip (dst
, CONFIG_SYS_FPGA_MAX_SIZE
, (uchar
*)fpgadata
, &len
) != 0) {
155 printf ("GUNZIP ERROR - must RESET board to recover\n");
156 do_reset (NULL
, 0, 0, NULL
);
159 status
= fpga_boot(dst
, len
);
161 printf("\nFPGA: Booting failed ");
163 case ERROR_FPGA_PRG_INIT_LOW
:
164 printf("(Timeout: INIT not low after asserting PROGRAM*)\n ");
166 case ERROR_FPGA_PRG_INIT_HIGH
:
167 printf("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
169 case ERROR_FPGA_PRG_DONE
:
170 printf("(Timeout: DONE not high after programming FPGA)\n ");
174 /* display infos on fpgaimage */
176 for (i
=0; i
<4; i
++) {
178 printf("FPGA: %s\n", &(dst
[index
+1]));
183 for (i
=20; i
>0; i
--) {
184 printf("Rebooting in %2d seconds \r",i
);
185 for (index
=0;index
<1000;index
++)
189 do_reset(NULL
, 0, 0, NULL
);
194 /* display infos on fpgaimage */
196 for (i
=0; i
<4; i
++) {
198 printf("%s ", &(dst
[index
+1]));
211 i2c_write(0x38, 0, 0, buf
, 3);
217 #if 1 /* test-only: board specific test commands */
218 int i2c_probe(uchar addr
);
222 int do_iploop(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
231 addr
= simple_strtol (argv
[1], NULL
, 16);
233 printf("iprobe looping on addr 0x%lx (cntrl-c aborts)...\n", addr
);
238 /* Abort if ctrl-c was pressed */
250 iploop
, 2, 1, do_iploop
,
251 "iploop - iprobe loop <addr>\n",
257 int do_codec(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
261 *(volatile ushort
*)0xe0000000 = 0x4000;
263 udelay(5000); /* wait for 5ms */
268 i2c_write(0x10, 0, 0, buf
, 3);
273 i2c_write(0x10, 0, 0, buf
, 3);
278 i2c_write(0x10, 0, 0, buf
, 3);
283 i2c_write(0x10, 0, 0, buf
, 3);
288 i2c_write(0x10, 0, 0, buf
, 3);
293 i2c_write(0x10, 0, 0, buf
, 3);
298 i2c_write(0x10, 0, 0, buf
, 3);
303 codec
, 1, 1, do_codec
,
304 "codec - Enable codec\n",
310 int do_saa(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
323 addr
= simple_strtol (argv
[1], NULL
, 16);
324 instr
= simple_strtol (argv
[2], NULL
, 16);
325 cntrl
= simple_strtol (argv
[3], NULL
, 16);
326 data
= simple_strtol (argv
[4], NULL
, 16);
328 buf
[0] = (uchar
)instr
;
329 buf
[1] = (uchar
)cntrl
;
330 buf
[2] = (uchar
)data
;
331 i2c_write(addr
, 0, 0, buf
, 3);
337 "saa - Write to SAA1064 <addr> <instr> <cntrl> <data>\n",
343 int do_iwrite(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
358 addr
= simple_strtol (argv
[1], NULL
, 16);
359 cnt
= simple_strtol (argv
[2], NULL
, 16);
360 data0
= simple_strtol (argv
[3], NULL
, 16);
361 data1
= simple_strtol (argv
[4], NULL
, 16);
362 data2
= simple_strtol (argv
[5], NULL
, 16);
363 data3
= simple_strtol (argv
[6], NULL
, 16);
365 printf("Writing %d bytes to device %lx!\n", cnt
, addr
);
366 buf
[0] = (uchar
)data0
;
367 buf
[1] = (uchar
)data1
;
368 buf
[2] = (uchar
)data2
;
369 buf
[3] = (uchar
)data3
;
370 i2c_write(addr
, 0, 0, buf
, cnt
);
375 iwrite
, 6, 1, do_iwrite
,
376 "iwrite - Write n bytes to I2C-device\n",
377 "addr cnt data0 ... datan\n"
382 int do_iread(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
394 addr
= simple_strtol (argv
[1], NULL
, 16);
395 cnt
= simple_strtol (argv
[2], NULL
, 16);
397 i2c_read(addr
, 0, 0, buf
, cnt
);
399 for (i
=0; i
<cnt
; i
++) {
400 printf(" %02X", buf
[i
]);
407 iread
, 3, 1, do_iread
,
408 "iread - Read from I2C <addr> <cnt>\n",
414 int do_ireadl(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
425 addr
= simple_strtol (argv
[1], NULL
, 16);
428 printf("iread looping on addr 0x%lx (cntrl-c aborts)...\n", addr
);
431 i2c_read(addr
, 0, 0, buf
, cnt
);
433 /* Abort if ctrl-c was pressed */
445 ireadl
, 2, 1, do_ireadl
,
446 "ireadl - Read-loop from I2C <addr>\n",