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ppc4xx: Clean up 440 exceptions handling
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887e2ec9 1/*
e802594b 2 * (C) Copyright 2006-2007
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3 * Stefan Roese, DENX Software Engineering, [email protected].
4 *
5 * (C) Copyright 2006
6 * Jacqueline Pira-Ferriol, AMCC/IBM, [email protected]
7 * Alain Saurel, AMCC/IBM, [email protected]
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24
25/************************************************************************
e802594b 26 * sequoia.h - configuration for Sequoia & Rainier boards
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27 ***********************************************************************/
28#ifndef __CONFIG_H
29#define __CONFIG_H
30
31/*-----------------------------------------------------------------------
32 * High Level Configuration Options
33 *----------------------------------------------------------------------*/
e802594b 34/* This config file is used for Sequoia (440EPx) and Rainier (440GRx) */
854bc8da 35#ifndef CONFIG_RAINIER
887e2ec9 36#define CONFIG_440EPX 1 /* Specific PPC440EPx */
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37#else
38#define CONFIG_440GRX 1 /* Specific PPC440GRx */
39#endif
efa35cf1 40#define CONFIG_440 1 /* ... PPC440 family */
887e2ec9 41#define CONFIG_4xx 1 /* ... PPC4xx family */
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42/* Detect Sequoia PLL input clock automatically via CPLD bit */
43#define CONFIG_SYS_CLK_FREQ ((in8(CFG_BCSR_BASE + 3) & 0x80) ? \
193b4a3b 44 33333333 : 33000000)
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45
46#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_early_init_f */
47#define CONFIG_MISC_INIT_R 1 /* Call misc_init_r */
48
49/*-----------------------------------------------------------------------
50 * Base addresses -- Note these are effective addresses where the
51 * actual resources get mapped (not physical addresses)
52 *----------------------------------------------------------------------*/
53#define CFG_MONITOR_LEN (384 * 1024) /* Reserve 384 kB for Monitor */
54#define CFG_MALLOC_LEN (256 * 1024) /* Reserve 256 kB for malloc() */
55
56#define CFG_BOOT_BASE_ADDR 0xf0000000
57#define CFG_SDRAM_BASE 0x00000000 /* _must_ be 0 */
4ef62514 58#define CFG_FLASH_BASE 0xfc000000 /* start of FLASH */
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59#define CFG_MONITOR_BASE TEXT_BASE
60#define CFG_NAND_ADDR 0xd0000000 /* NAND Flash */
61#define CFG_OCM_BASE 0xe0010000 /* ocm */
62#define CFG_PCI_BASE 0xe0000000 /* Internal PCI regs */
63#define CFG_PCI_MEMBASE 0x80000000 /* mapped pci memory */
64#define CFG_PCI_MEMBASE1 CFG_PCI_MEMBASE + 0x10000000
65#define CFG_PCI_MEMBASE2 CFG_PCI_MEMBASE1 + 0x10000000
66#define CFG_PCI_MEMBASE3 CFG_PCI_MEMBASE2 + 0x10000000
67
68/* Don't change either of these */
69#define CFG_PERIPHERAL_BASE 0xef600000 /* internal peripherals */
70
71#define CFG_USB2D0_BASE 0xe0000100
72#define CFG_USB_DEVICE 0xe0000000
73#define CFG_USB_HOST 0xe0000400
74#define CFG_BCSR_BASE 0xc0000000
75
76/*-----------------------------------------------------------------------
77 * Initial RAM & stack pointer
78 *----------------------------------------------------------------------*/
887e2ec9 79/* 440EPx/440GRx have 16KB of internal SRAM, so no need for D-Cache */
887e2ec9 80#define CFG_INIT_RAM_ADDR CFG_OCM_BASE /* OCM */
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81#define CFG_INIT_RAM_END (4 << 10)
82#define CFG_GBL_DATA_SIZE 256 /* num bytes initial data */
83#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
84#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
85
86/*-----------------------------------------------------------------------
87 * Serial Port
88 *----------------------------------------------------------------------*/
89#define CFG_EXT_SERIAL_CLOCK 11059200 /* ext. 11.059MHz clk */
90#define CONFIG_BAUDRATE 115200
91#define CONFIG_SERIAL_MULTI 1
92/* define this if you want console on UART1 */
93#undef CONFIG_UART1_CONSOLE
94
95#define CFG_BAUDRATE_TABLE \
96 {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200}
97
98/*-----------------------------------------------------------------------
99 * Environment
100 *----------------------------------------------------------------------*/
d12ae808 101#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
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102#define CFG_ENV_IS_IN_FLASH 1 /* use FLASH for environment vars */
103#else
104#define CFG_ENV_IS_IN_NAND 1 /* use NAND for environment vars */
d1a72545 105#define CFG_ENV_IS_EMBEDDED 1 /* use embedded environment */
887e2ec9 106#endif
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107
108/*-----------------------------------------------------------------------
109 * FLASH related
110 *----------------------------------------------------------------------*/
111#define CFG_FLASH_CFI /* The flash is CFI compatible */
112#define CFG_FLASH_CFI_DRIVER /* Use common CFI driver */
113
114#define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE }
115
116#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
117#define CFG_MAX_FLASH_SECT 512 /* max number of sectors on one chip */
118
119#define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
120#define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
121
122#define CFG_FLASH_USE_BUFFER_WRITE 1 /* use buffered writes (20x faster) */
123#define CFG_FLASH_PROTECTION 1 /* use hardware flash protection */
124
125#define CFG_FLASH_EMPTY_INFO /* print 'E' for empty sector on flinfo */
126#define CFG_FLASH_QUIET_TEST 1 /* don't warn upon unknown flash */
127
128#ifdef CFG_ENV_IS_IN_FLASH
129#define CFG_ENV_SECT_SIZE 0x20000 /* size of one complete sector */
130#define CFG_ENV_ADDR ((-CFG_MONITOR_LEN)-CFG_ENV_SECT_SIZE)
131#define CFG_ENV_SIZE 0x2000 /* Total Size of Environment Sector */
132
133/* Address and size of Redundant Environment Sector */
134#define CFG_ENV_ADDR_REDUND (CFG_ENV_ADDR-CFG_ENV_SECT_SIZE)
135#define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE)
136#endif
137
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138/*
139 * IPL (Initial Program Loader, integrated inside CPU)
140 * Will load first 4k from NAND (SPL) into cache and execute it from there.
141 *
142 * SPL (Secondary Program Loader)
143 * Will load special U-Boot version (NUB) from NAND and execute it. This SPL
144 * has to fit into 4kByte. It sets up the CPU and configures the SDRAM
145 * controller and the NAND controller so that the special U-Boot image can be
146 * loaded from NAND to SDRAM.
147 *
148 * NUB (NAND U-Boot)
149 * This NAND U-Boot (NUB) is a special U-Boot version which can be started
150 * from RAM. Therefore it mustn't (re-)configure the SDRAM controller.
151 *
152 * On 440EPx the SPL is copied to SDRAM before the NAND controller is
153 * set up. While still running from cache, I experienced problems accessing
154 * the NAND controller. sr - 2006-08-25
155 */
156#define CFG_NAND_BOOT_SPL_SRC 0xfffff000 /* SPL location */
157#define CFG_NAND_BOOT_SPL_SIZE (4 << 10) /* SPL size */
158#define CFG_NAND_BOOT_SPL_DST (CFG_OCM_BASE + (12 << 10)) /* Copy SPL here */
159#define CFG_NAND_U_BOOT_DST 0x01000000 /* Load NUB to this addr */
160#define CFG_NAND_U_BOOT_START CFG_NAND_U_BOOT_DST /* Start NUB from this addr */
161#define CFG_NAND_BOOT_SPL_DELTA (CFG_NAND_BOOT_SPL_SRC - CFG_NAND_BOOT_SPL_DST)
162
163/*
164 * Define the partitioning of the NAND chip (only RAM U-Boot is needed here)
165 */
166#define CFG_NAND_U_BOOT_OFFS (16 << 10) /* Offset to RAM U-Boot image */
167#define CFG_NAND_U_BOOT_SIZE (384 << 10) /* Size of RAM U-Boot image */
168
169/*
170 * Now the NAND chip has to be defined (no autodetection used!)
171 */
9d909604 172#define CFG_NAND_PAGE_SIZE 512 /* NAND chip page size */
887e2ec9 173#define CFG_NAND_BLOCK_SIZE (16 << 10) /* NAND chip block size */
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174#define CFG_NAND_PAGE_COUNT 32 /* NAND chip page count */
175#define CFG_NAND_BAD_BLOCK_POS 5 /* Location of bad block marker */
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176#undef CFG_NAND_4_ADDR_CYCLE /* No fourth addr used (<=32MB) */
177
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178#define CFG_NAND_ECCSIZE 256
179#define CFG_NAND_ECCBYTES 3
180#define CFG_NAND_ECCSTEPS (CFG_NAND_PAGE_SIZE / CFG_NAND_ECCSIZE)
181#define CFG_NAND_OOBSIZE 16
182#define CFG_NAND_ECCTOTAL (CFG_NAND_ECCBYTES * CFG_NAND_ECCSTEPS)
183#define CFG_NAND_ECCPOS {0, 1, 2, 3, 6, 7}
184
887e2ec9 185#ifdef CFG_ENV_IS_IN_NAND
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186/*
187 * For NAND booting the environment is embedded in the U-Boot image. Please take
188 * look at the file board/amcc/sequoia/u-boot-nand.lds for details.
189 */
190#define CFG_ENV_SIZE CFG_NAND_BLOCK_SIZE
191#define CFG_ENV_OFFSET (CFG_NAND_U_BOOT_OFFS + CFG_ENV_SIZE)
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192#define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET + CFG_ENV_SIZE)
193#endif
194
195/*-----------------------------------------------------------------------
196 * DDR SDRAM
197 *----------------------------------------------------------------------*/
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198#define CFG_MBYTES_SDRAM (256) /* 256MB */
199#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
200#define CONFIG_DDR_DATA_EYE /* use DDR2 optimization */
201#endif
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202
203/*-----------------------------------------------------------------------
204 * I2C
205 *----------------------------------------------------------------------*/
206#define CONFIG_HARD_I2C 1 /* I2C with hardware support */
207#undef CONFIG_SOFT_I2C /* I2C bit-banged */
208#define CFG_I2C_SPEED 400000 /* I2C speed and slave address */
209#define CFG_I2C_SLAVE 0x7F
210
211#define CFG_I2C_MULTI_EEPROMS
212#define CFG_I2C_EEPROM_ADDR (0xa8>>1)
213#define CFG_I2C_EEPROM_ADDR_LEN 1
214#define CFG_EEPROM_PAGE_WRITE_ENABLE
215#define CFG_EEPROM_PAGE_WRITE_BITS 3
216#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10
217
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218/* I2C SYSMON (LM75, AD7414 is almost compatible) */
219#define CONFIG_DTT_LM75 1 /* ON Semi's LM75 */
220#define CONFIG_DTT_AD7414 1 /* use AD7414 */
221#define CONFIG_DTT_SENSORS {0} /* Sensor addresses */
222#define CFG_DTT_MAX_TEMP 70
223#define CFG_DTT_LOW_TEMP -30
224#define CFG_DTT_HYSTERESIS 3
225
226#define CONFIG_PREBOOT "echo;" \
227 "echo Type \"run flash_nfs\" to mount root filesystem over NFS;" \
228 "echo"
229
230#undef CONFIG_BOOTARGS
231
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232/* Setup some board specific values for the default environment variables */
233#ifndef CONFIG_RAINIER
234#define CONFIG_HOSTNAME sequoia
235#define CFG_BOOTFILE "bootfile=/tftpboot/sequoia/uImage\0"
236#define CFG_ROOTPATH "rootpath=/opt/eldk/ppc_4xxFP\0"
237#else
238#define CONFIG_HOSTNAME rainier
239#define CFG_BOOTFILE "bootfile=/tftpboot/rainier/uImage\0"
240#define CFG_ROOTPATH "rootpath=/opt/eldk/ppc_4xx\0"
241#endif
242
887e2ec9 243#define CONFIG_EXTRA_ENV_SETTINGS \
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244 CFG_BOOTFILE \
245 CFG_ROOTPATH \
887e2ec9 246 "netdev=eth0\0" \
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247 "nfsargs=setenv bootargs root=/dev/nfs rw " \
248 "nfsroot=${serverip}:${rootpath}\0" \
249 "ramargs=setenv bootargs root=/dev/ram rw\0" \
250 "addip=setenv bootargs ${bootargs} " \
251 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
252 ":${hostname}:${netdev}:off panic=1\0" \
253 "addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
254 "flash_nfs=run nfsargs addip addtty;" \
255 "bootm ${kernel_addr}\0" \
256 "flash_self=run ramargs addip addtty;" \
257 "bootm ${kernel_addr} ${ramdisk_addr}\0" \
258 "net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;" \
259 "bootm\0" \
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260 "kernel_addr=FC000000\0" \
261 "ramdisk_addr=FC180000\0" \
e802594b 262 "load=tftp 200000 /tftpboot/${hostname}/u-boot.bin\0" \
887e2ec9 263 "update=protect off FFFA0000 FFFFFFFF;era FFFA0000 FFFFFFFF;" \
e802594b 264 "cp.b 200000 FFFA0000 60000\0" \
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265 "upd=run load;run update\0" \
266 ""
267#define CONFIG_BOOTCOMMAND "run flash_self"
268
269#if 0
270#define CONFIG_BOOTDELAY -1 /* autoboot disabled */
271#else
272#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
273#endif
274
275#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
276#define CFG_LOADS_BAUD_CHANGE 1 /* allow baudrate change */
277
278#define CONFIG_M88E1111_PHY 1
279#define CONFIG_IBM_EMAC4_V4 1
280#define CONFIG_MII 1 /* MII PHY management */
281#define CONFIG_PHY_ADDR 0 /* PHY address, See schematics */
282
283#define CONFIG_PHY_RESET 1 /* reset phy upon startup */
284#define CONFIG_PHY_GIGE 1 /* Include GbE speed/duplex detection */
285
286#define CONFIG_HAS_ETH0
287#define CFG_RX_ETH_BUFFER 32 /* Number of ethernet rx buffers & descriptors */
288
289#define CONFIG_NET_MULTI 1
290#define CONFIG_HAS_ETH1 1 /* add support for "eth1addr" */
291#define CONFIG_PHY1_ADDR 1
292
293/* USB */
854bc8da 294#ifdef CONFIG_440EPX
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295#define CONFIG_USB_OHCI
296#define CONFIG_USB_STORAGE
297
298/* Comment this out to enable USB 1.1 device */
299#define USB_2_0_DEVICE
300
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301#define CMD_USB CFG_CMD_USB
302#else
303#define CMD_USB 0 /* no USB on 440GRx */
304#endif /* CONFIG_440EPX */
305
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306/* Partitions */
307#define CONFIG_MAC_PARTITION
308#define CONFIG_DOS_PARTITION
309#define CONFIG_ISO_PARTITION
310
311#define CONFIG_COMMANDS (CONFIG_CMD_DFL | \
312 CFG_CMD_ASKENV | \
313 CFG_CMD_DHCP | \
314 CFG_CMD_DTT | \
315 CFG_CMD_DIAG | \
316 CFG_CMD_EEPROM | \
317 CFG_CMD_ELF | \
318 CFG_CMD_FAT | \
319 CFG_CMD_I2C | \
320 CFG_CMD_IRQ | \
321 CFG_CMD_MII | \
322 CFG_CMD_NAND | \
323 CFG_CMD_NET | \
324 CFG_CMD_NFS | \
325 CFG_CMD_PCI | \
326 CFG_CMD_PING | \
327 CFG_CMD_REGINFO | \
328 CFG_CMD_SDRAM | \
854bc8da 329 CMD_USB)
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330
331#define CONFIG_SUPPORT_VFAT
332
333/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
334#include <cmd_confdefs.h>
335
336/*-----------------------------------------------------------------------
337 * Miscellaneous configurable options
338 *----------------------------------------------------------------------*/
339#define CFG_LONGHELP /* undef to save memory */
340#define CFG_PROMPT "=> " /* Monitor Command Prompt */
341#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
342#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
343#else
344#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
345#endif
346#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
347#define CFG_MAXARGS 16 /* max number of command args */
348#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
349
350#define CFG_MEMTEST_START 0x0400000 /* memtest works on */
351#define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
352
353#define CFG_LOAD_ADDR 0x100000 /* default load address */
354#define CFG_EXTBDINFO 1 /* To use extended board_into (bd_t) */
355
356#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
357
358#define CONFIG_CMDLINE_EDITING 1 /* add command line history */
359#define CONFIG_LOOPW 1 /* enable loopw command */
360#define CONFIG_MX_CYCLIC 1 /* enable mdc/mwc commands */
361#define CONFIG_ZERO_BOOTDELAY_CHECK /* check for keypress on bootdelay==0 */
362#define CONFIG_VERSION_VARIABLE 1 /* include version env variable */
363
364/*-----------------------------------------------------------------------
365 * PCI stuff
366 *----------------------------------------------------------------------*/
367/* General PCI */
368#define CONFIG_PCI /* include pci support */
23744d6b 369#undef CONFIG_PCI_PNP /* do (not) pci plug-and-play */
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370#define CONFIG_PCI_SCAN_SHOW /* show pci devices on startup */
371#define CFG_PCI_TARGBASE 0x80000000 /* PCIaddr mapped to CFG_PCI_MEMBASE*/
372
373/* Board-specific PCI */
374#define CFG_PCI_PRE_INIT /* enable board pci_pre_init() */
375#define CFG_PCI_TARGET_INIT
376#define CFG_PCI_MASTER_INIT
377
378#define CFG_PCI_SUBSYS_VENDORID 0x10e8 /* AMCC */
379#define CFG_PCI_SUBSYS_ID 0xcafe /* Whatever */
380
381/*
382 * For booting Linux, the board info and command line data
383 * have to be in the first 8 MB of memory, since this is
384 * the maximum mapped by the Linux kernel during initialization.
385 */
386#define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
387
388/*-----------------------------------------------------------------------
389 * External Bus Controller (EBC) Setup
390 *----------------------------------------------------------------------*/
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391
392/*
393 * On Sequoia CS0 and CS3 are switched when configuring for NAND booting
394 */
395#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
396#define CFG_NAND_CS 3 /* NAND chip connected to CSx */
397/* Memory Bank 0 (NOR-FLASH) initialization */
4be23a12 398#define CFG_EBC_PB0AP 0x03017200
2db63365 399#define CFG_EBC_PB0CR (CFG_FLASH_BASE | 0xda000)
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400
401/* Memory Bank 3 (NAND-FLASH) initialization */
402#define CFG_EBC_PB3AP 0x018003c0
2db63365 403#define CFG_EBC_PB3CR (CFG_NAND_ADDR | 0x1c000)
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404#else
405#define CFG_NAND_CS 0 /* NAND chip connected to CSx */
406/* Memory Bank 3 (NOR-FLASH) initialization */
4be23a12 407#define CFG_EBC_PB3AP 0x03017200
2db63365 408#define CFG_EBC_PB3CR (CFG_FLASH_BASE | 0xda000)
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409
410/* Memory Bank 0 (NAND-FLASH) initialization */
411#define CFG_EBC_PB0AP 0x018003c0
2db63365 412#define CFG_EBC_PB0CR (CFG_NAND_ADDR | 0x1c000)
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413#endif
414
415/* Memory Bank 2 (CPLD) initialization */
416#define CFG_EBC_PB2AP 0x24814580
2db63365 417#define CFG_EBC_PB2CR (CFG_BCSR_BASE | 0x38000)
887e2ec9 418
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419/*-----------------------------------------------------------------------
420 * NAND FLASH
421 *----------------------------------------------------------------------*/
422#define CFG_MAX_NAND_DEVICE 1
423#define NAND_MAX_CHIPS 1
424#define CFG_NAND_BASE (CFG_NAND_ADDR + CFG_NAND_CS)
425#define CFG_NAND_SELECT_DEVICE 1 /* nand driver supports mutipl. chips */
426
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427/*-----------------------------------------------------------------------
428 * Cache Configuration
429 *----------------------------------------------------------------------*/
430#define CFG_DCACHE_SIZE (32<<10) /* For AMCC 440 CPUs */
431#define CFG_CACHELINE_SIZE 32 /* ... */
432#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
433#define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value */
434#endif
435
436/*
437 * Internal Definitions
438 *
439 * Boot Flags
440 */
441#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
442#define BOOTFLAG_WARM 0x02 /* Software reboot */
443
444#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
445#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port */
446#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
447#endif
448#endif /* __CONFIG_H */
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