diff options
Diffstat (limited to 'board/iphase4539')
-rw-r--r-- | board/iphase4539/Kconfig | 9 | ||||
-rw-r--r-- | board/iphase4539/MAINTAINERS | 6 | ||||
-rw-r--r-- | board/iphase4539/Makefile | 10 | ||||
-rw-r--r-- | board/iphase4539/README | 358 | ||||
-rw-r--r-- | board/iphase4539/flash.c | 474 | ||||
-rw-r--r-- | board/iphase4539/iphase4539.c | 408 |
6 files changed, 0 insertions, 1265 deletions
diff --git a/board/iphase4539/Kconfig b/board/iphase4539/Kconfig deleted file mode 100644 index 74594d2..0000000 --- a/board/iphase4539/Kconfig +++ /dev/null @@ -1,9 +0,0 @@ -if TARGET_IPHASE4539 - -config SYS_BOARD - default "iphase4539" - -config SYS_CONFIG_NAME - default "IPHASE4539" - -endif diff --git a/board/iphase4539/MAINTAINERS b/board/iphase4539/MAINTAINERS deleted file mode 100644 index ddf6814..0000000 --- a/board/iphase4539/MAINTAINERS +++ /dev/null @@ -1,6 +0,0 @@ -IPHASE4539 BOARD -M: Wolfgang Grandegger <wg@denx.de> -S: Maintained -F: board/iphase4539/ -F: include/configs/IPHASE4539.h -F: configs/IPHASE4539_defconfig diff --git a/board/iphase4539/Makefile b/board/iphase4539/Makefile deleted file mode 100644 index 9197b84..0000000 --- a/board/iphase4539/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# (C) Copyright 2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# (C) Copyright 2002 Wolfgang Grandegger <wg@denx.de> -# -# SPDX-License-Identifier: GPL-2.0+ -# - -obj-y := iphase4539.o flash.o diff --git a/board/iphase4539/README b/board/iphase4539/README deleted file mode 100644 index c5146d9..0000000 --- a/board/iphase4539/README +++ /dev/null @@ -1,358 +0,0 @@ - -This file contains basic information on the port of U-Boot to IPHASE4539 -(Interphase 4539 T1/E1/J1 PMC Communications Controller). -All the changes fit in the common U-Boot infrastructure, providing a new -IPHASE4539-specific entry in makefiles. To build U-Boot for IPHASE4539, -type "make IPHASE4539_config", edit the "include/config_IPHASE4539.h" -file if necessary, then type "make". - - -Common file modifications: --------------------------- - -The following common files have been modified by this project: -(starting from the ppcboot-1.1.5/ directory) - -MAKEALL - IPHASE4539 entry added -Makefile - IPHASE4539_config entry added - - -New files: ----------- - -The following new files have been added by this project: -(starting from the ppcboot-1.1.5/ directory) - -board/iphase4539/ - board-specific directory -board/iphase4539/Makefile - board-specific makefile -board/iphase4539/config.mk - config file -board/iphase4539/flash.c - flash driver (for AM29LV033C) -board/iphase4539/ppcboot.lds - linker script -board/iphase4539/iphase4539.c - ioport and memory initialization -include/config_IPHASE4539.h - main configuration file - - -New configuration options: --------------------------- - -CONFIG_IPHASE4539 - - Main board-specific option (should be defined for IPHASE4539). - - -Acceptance criteria tests: --------------------------- - -The following tests have been conducted to validate the port of U-Boot -to IPHASE4539: - -1. Operation on serial console: - -With SMC1 defined as console in the main configuration file, the U-Boot -output appeared on the serial terminal connected to the 2.5mm stereo jack -connector as follows: - ------------------------------------------------------------------------------- -=> help -base - print or set address offset -bdinfo - print Board Info structure -bootm - boot application image from memory -bootp - boot image via network using BootP/TFTP protocol -bootd - boot default, i.e., run 'bootcmd' -cmp - memory compare -coninfo - print console devices and informations -cp - memory copy -crc32 - checksum calculation -dcache - enable or disable data cache -echo - echo args to console -erase - erase FLASH memory -flinfo - print FLASH memory information -go - start application at address 'addr' -help - print online help -icache - enable or disable instruction cache -iminfo - print header information for application image -loadb - load binary file over serial line (kermit mode) -loads - load S-Record file over serial line -loop - infinite loop on address range -md - memory display -mm - memory modify (auto-incrementing) -mtest - simple RAM test -mw - memory write (fill) -nm - memory modify (constant address) -printenv- print environment variables -protect - enable or disable FLASH write protection -rarpboot- boot image via network using RARP/TFTP protocol -reset - Perform RESET of the CPU -run - run commands in an environment variable -saveenv - save environment variables to persistent storage -setenv - set environment variables -sleep - delay execution for some time -source - run script from memory -tftpboot- boot image via network using TFTP protocol - and env variables ipaddr and serverip -version - print monitor version -? - alias for 'help' -=> ------------------------------------------------------------------------------- - - -2. Flash driver operation - -The following sequence was performed to test the "flinfo" command: - ------------------------------------------------------------------------------- -=> flinfo - -Bank # 1: AMD AM29LV033C (32 Mbit, uniform sectors) - Size: 4 MB in 64 Sectors - Sector Start Addresses: - FF800000 (RO) FF810000 (RO) FF820000 FF830000 FF840000 - FF850000 FF860000 FF870000 FF880000 FF890000 - FF8A0000 FF8B0000 FF8C0000 FF8D0000 FF8E0000 - FF8F0000 FF900000 FF910000 FF920000 FF930000 - FF940000 FF950000 FF960000 FF970000 FF980000 - FF990000 FF9A0000 FF9B0000 FF9C0000 FF9D0000 - FF9E0000 FF9F0000 FFA00000 FFA10000 FFA20000 - FFA30000 FFA40000 FFA50000 FFA60000 FFA70000 - FFA80000 FFA90000 FFAA0000 FFAB0000 FFAC0000 - FFAD0000 FFAE0000 FFAF0000 FFB00000 (RO) FFB10000 (RO) - FFB20000 (RO) FFB30000 (RO) FFB40000 FFB50000 FFB60000 - FFB70000 FFB80000 FFB90000 FFBA0000 FFBB0000 - FFBC0000 FFBD0000 FFBE0000 FFBF0000 ------------------------------------------------------------------------------- - -Note: the Hardware Configuration Word (HWC) of the 8260 is on the -first sector of the flash and should not be touched. The U-Boot -environment variables are stored on second sector and U-Boot -starts at the address 0xFFB00000. - - -The following sequence was performed to test the erase command: - ------------------------------------------------------------------------------- -=> cp 0 ff880000 10 -Copy to Flash... done -=> md ff880000 20 -ff880000: ff000000 60000000 60000000 7c7f1b78 ....`...`...|..x -ff880010: 7c9e2378 7cbd2b78 7cdc3378 7cfb3b78 |.#x|.+x|.3x|.;x -ff880020: 3b000000 4811e0f5 48003719 480036a5 ;...H...H.7.H.6. -ff880030: 480036f9 48003731 48005c5d 7c7a1b78 H.6.H.71H.\]|z.x -ff880040: ffffffff ffffffff ffffffff ffffffff ................ -ff880050: ffffffff ffffffff ffffffff ffffffff ................ -ff880060: ffffffff ffffffff ffffffff ffffffff ................ -ff880070: ffffffff ffffffff ffffffff ffffffff ................ -=> erase ff880000 ff88ffff -Erase Flash from 0xff880000 to 0xff88ffff -.. done -Erased 1 sectors -=> md ff880000 -ff880000: ffffffff ffffffff ffffffff ffffffff ................ -ff880010: ffffffff ffffffff ffffffff ffffffff ................ -ff880020: ffffffff ffffffff ffffffff ffffffff ................ -ff880030: ffffffff ffffffff ffffffff ffffffff ................ -ff880040: ffffffff ffffffff ffffffff ffffffff ................ -ff880050: ffffffff ffffffff ffffffff ffffffff ................ -ff880060: ffffffff ffffffff ffffffff ffffffff ................ -ff880070: ffffffff ffffffff ffffffff ffffffff ................ -=> cp 0 ff880000 10 -Copy to Flash... done -=> md ff880000 20 -ff880000: ff000000 60000000 60000000 7c7f1b78 ....`...`...|..x -ff880010: 7c9e2378 7cbd2b78 7cdc3378 7cfb3b78 |.#x|.+x|.3x|.;x -ff880020: 3b000000 4811e0f5 48003719 480036a5 ;...H...H.7.H.6. -ff880030: 480036f9 48003731 48005c5d 7c7a1b78 H.6.H.71H.\]|z.x -ff880040: ffffffff ffffffff ffffffff ffffffff ................ -ff880050: ffffffff ffffffff ffffffff ffffffff ................ -ff880060: ffffffff ffffffff ffffffff ffffffff ................ -ff880070: ffffffff ffffffff ffffffff ffffffff ................ -=> erase 1:8 -Erase Flash Sectors 8-8 in Bank # 1 -.. done -=> md ff880000 20 -ff880000: ffffffff ffffffff ffffffff ffffffff ................ -ff880010: ffffffff ffffffff ffffffff ffffffff ................ -ff880020: ffffffff ffffffff ffffffff ffffffff ................ -ff880030: ffffffff ffffffff ffffffff ffffffff ................ -ff880040: ffffffff ffffffff ffffffff ffffffff ................ -ff880050: ffffffff ffffffff ffffffff ffffffff ................ -ff880060: ffffffff ffffffff ffffffff ffffffff ................ -ff880070: ffffffff ffffffff ffffffff ffffffff ................ -=> cp 0 ff880000 10 -Copy to Flash... done -=> cp 0 ff890000 10 -=> md ff880000 20 -ff880000: ff000000 60000000 60000000 7c7f1b78 ....`...`...|..x -ff880010: 7c9e2378 7cbd2b78 7cdc3378 7cfb3b78 |.#x|.+x|.3x|.;x -ff880020: 3b000000 4811e0f5 48003719 480036a5 ;...H...H.7.H.6. -ff880030: 480036f9 48003731 48005c5d 7c7a1b78 H.6.H.71H.\]|z.x -ff880040: ffffffff ffffffff ffffffff ffffffff ................ -ff880050: ffffffff ffffffff ffffffff ffffffff ................ -ff880060: ffffffff ffffffff ffffffff ffffffff ................ -ff880070: ffffffff ffffffff ffffffff ffffffff ................ -=> md ff890000 -ff890000: ff000000 60000000 60000000 7c7f1b78 ....`...`...|..x -ff890010: 7c9e2378 7cbd2b78 7cdc3378 7cfb3b78 |.#x|.+x|.3x|.;x -ff890020: 3b000000 4811e0f5 48003719 480036a5 ;...H...H.7.H.6. -ff890030: 480036f9 48003731 48005c5d 7c7a1b78 H.6.H.71H.\]|z.x -ff890040: ffffffff ffffffff ffffffff ffffffff ................ -ff890050: ffffffff ffffffff ffffffff ffffffff ................ -ff890060: ffffffff ffffffff ffffffff ffffffff ................ -ff890070: ffffffff ffffffff ffffffff ffffffff ................ -=> erase 1:8-9 -Erase Flash Sectors 8-9 in Bank # 1 -.... done -=> md ff880000 20 -ff880000: ffffffff ffffffff ffffffff ffffffff ................ -ff880010: ffffffff ffffffff ffffffff ffffffff ................ -ff880020: ffffffff ffffffff ffffffff ffffffff ................ -ff880030: ffffffff ffffffff ffffffff ffffffff ................ -ff880040: ffffffff ffffffff ffffffff ffffffff ................ -ff880050: ffffffff ffffffff ffffffff ffffffff ................ -ff880060: ffffffff ffffffff ffffffff ffffffff ................ -ff880070: ffffffff ffffffff ffffffff ffffffff ................ -=> md ff890000 -ff890000: ffffffff ffffffff ffffffff ffffffff ................ -ff890010: ffffffff ffffffff ffffffff ffffffff ................ -ff890020: ffffffff ffffffff ffffffff ffffffff ................ -ff890030: ffffffff ffffffff ffffffff ffffffff ................ -ff890040: ffffffff ffffffff ffffffff ffffffff ................ -ff890050: ffffffff ffffffff ffffffff ffffffff ................ -ff890060: ffffffff ffffffff ffffffff ffffffff ................ -ff890070: ffffffff ffffffff ffffffff ffffffff ................ -=> ------------------------------------------------------------------------------- - - -The following sequence was performed to test the Flash programming commands: - ------------------------------------------------------------------------------- -=> erase ff880000 ff88ffff -Erase Flash from 0xff880000 to 0xff88ffff -.. done -Erased 1 sectors -=> cp 0 ff880000 10 -Copy to Flash... done -=> md 0 20 -00000000: ff000000 60000000 60000000 7c7f1b78 ....`...`...|..x -00000010: 7c9e2378 7cbd2b78 7cdc3378 7cfb3b78 |.#x|.+x|.3x|.;x -00000020: 3b000000 4811e0f5 48003719 480036a5 ;...H...H.7.H.6. -00000030: 480036f9 48003731 48005c5d 7c7a1b78 H.6.H.71H.\]|z.x -00000040: 3c83c000 2c040000 40823378 7c0000a6 <...,...@.3x|... -00000050: 60000030 7c1b03a6 3c00c000 600035ec `..0|...<...`.5. -00000060: 7c1a03a6 4c000064 00000000 00000000 |...L..d........ -00000070: 00000000 00000000 00000000 00000000 ................ -=> md ff880000 20 -ff880000: ff000000 60000000 60000000 7c7f1b78 ....`...`...|..x -ff880010: 7c9e2378 7cbd2b78 7cdc3378 7cfb3b78 |.#x|.+x|.3x|.;x -ff880020: 3b000000 4811e0f5 48003719 480036a5 ;...H...H.7.H.6. -ff880030: 480036f9 48003731 48005c5d 7c7a1b78 H.6.H.71H.\]|z.x -ff880040: ffffffff ffffffff ffffffff ffffffff ................ -ff880050: ffffffff ffffffff ffffffff ffffffff ................ -ff880060: ffffffff ffffffff ffffffff ffffffff ................ -ff880070: ffffffff ffffffff ffffffff ffffffff ................ -=> ------------------------------------------------------------------------------- - - -The following sequence was performed to test storage of the environment -variables in Flash: - ------------------------------------------------------------------------------- -=> setenv foo bar -=> saveenv -Un-Protected 1 sectors -Erasing Flash... -.. done -Erased 1 sectors -Saving Environment to Flash... -Protected 1 sectors -=> reset -... -=> printenv -... -foo=bar -... -Environment size: 339/65532 bytes -=> ------------------------------------------------------------------------------- - - -The following sequence was performed to test image download and run over -Ethernet interface (both interfaces were tested): - ------------------------------------------------------------------------------- -=> tftpboot 40000 hello_world.bin -ARP broadcast 1 -TFTP from server 10.0.0.1; our IP address is 10.0.0.8 -Filename 'hello_world.bin'. -Load address: 0x40000 -Loading: ############# -done -Bytes transferred = 65932 (1018c hex) -=> go 40004 -## Starting application at 0x00040004 ... -Hello World -argc = 1 -argv[0] = "40004" -argv[1] = "<NULL>" -Hit any key to exit ... - -## Application terminated, rc = 0x0 -=> ------------------------------------------------------------------------------- - - -3. Known Problems - -None for the moment. - - ----------------------------------------------------------------------------- -U-Boot and Linux for Interphase 4539 T1/E1/J1 PMC Communications Controller ----------------------------------------------------------------------------- - -U-Boot: - - Configure and make U-Boot: - - $ cd <path>/u-boot - $ make IPHASE4539_config - $ make dep - $ make - $ cp -p u-boot.bin /tftpboot - - Load u-boot.bin into the Flash memory at 0xffb00000. - - -Linux: - - Configure and make Linux: - - $ cd <patch>/linux-2.4 - $ make IPHASE4539_config - $ make oldconfig - $ make dep - $ make uImage - $ cp -p arch/powerpc/mbxboot/uImage /tftpboot - - Load uImage via tftp and boot it. - - -Flash organisation: - - The following preliminary layout of the Flash memory - is defined: - - 0xff800000 ( 0 - 64 kB): Hardware Configuration Word. - 0xff810000 ( 64 kB - 128 kB): U-Boot Environment. - 0xff820000 ( 128 kB - 3 MB): RAMdisk. - 0xffb00000 ( 3 MB - 3328 kB): U-Boot. - 0xffb40000 (3328 KB - 4 MB): Linux Kernel. - - -For further information concerning U-Boot and Linux please consult -the "DENX U-Boot and Linux Guide". - - -(C) 2002 Wolfgang Grandegger, DENX Software Engineering, wg@denx.de -=================================================================== diff --git a/board/iphase4539/flash.c b/board/iphase4539/flash.c deleted file mode 100644 index 3c2dad6..0000000 --- a/board/iphase4539/flash.c +++ /dev/null @@ -1,474 +0,0 @@ -/* - * (C) Copyright 2001 - * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. - * - * (C) Copyright 2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * Adapted for Interphase 4539 by Wolfgang Grandegger <wg@denx.de>. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <config.h> -#include <common.h> -#include <flash.h> -#include <asm/io.h> - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - -extern int hwc_flash_size(void); -static ulong flash_get_size (u32 addr, flash_info_t *info); -static int flash_get_offsets (u32 base, flash_info_t *info); -static int write_word (flash_info_t *info, ulong dest, ulong data); -static void flash_reset (u32 addr); - -#define out8(a,v) *(volatile unsigned char*)(a) = v -#define in8(a) *(volatile unsigned char*)(a) -#define in32(a) *(volatile unsigned long*)(a) -#define iobarrier_rw() eieio() - -unsigned long flash_init (void) -{ - unsigned int i; - unsigned long flash_size = 0; - unsigned long bank_size; - unsigned int bank = 0; - - /* Init: no FLASHes known */ - for (i=0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { - flash_info[i].flash_id = FLASH_UNKNOWN; - flash_info[i].sector_count = 0; - flash_info[i].size = 0; - } - - /* Initialise the BOOT Flash */ - if (bank == CONFIG_SYS_MAX_FLASH_BANKS) { - puts ("Warning: not all Flashes are initialised !"); - return flash_size; - } - - bank_size = flash_get_size (CONFIG_SYS_FLASH_BASE, flash_info + bank); - if (bank_size) { -#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE && \ - CONFIG_SYS_MONITOR_BASE < CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MAX_FLASH_SIZE - /* monitor protection ON by default */ - flash_protect(FLAG_PROTECT_SET, - CONFIG_SYS_MONITOR_BASE, - CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, - flash_info + bank); -#endif - -#ifdef CONFIG_ENV_IS_IN_FLASH - /* ENV protection ON by default */ - flash_protect(FLAG_PROTECT_SET, - CONFIG_ENV_ADDR, - CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1, - flash_info + bank); -#endif - - /* HWC protection ON by default */ - flash_protect(FLAG_PROTECT_SET, - CONFIG_SYS_FLASH_BASE, - CONFIG_SYS_FLASH_BASE + 0x10000 - 1, - flash_info + bank); - - flash_size += bank_size; - bank++; - } else { - puts ("Warning: the BOOT Flash is not initialised !"); - } - - return flash_size; -} - -/* - * The following code cannot be run from FLASH! - */ -static ulong flash_get_size (u32 addr, flash_info_t *info) -{ - volatile uchar value; -#if 0 - int i; -#endif - - /* Write auto select command: read Manufacturer ID */ - out8(addr + 0x0555, 0xAA); - iobarrier_rw(); - udelay(10); - out8(addr + 0x02AA, 0x55); - iobarrier_rw(); - udelay(10); - out8(addr + 0x0555, 0x90); - iobarrier_rw(); - udelay(10); - - value = in8(addr); - iobarrier_rw(); - udelay(10); - switch (value | (value << 16)) { - case AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - - case FUJ_MANUFACT: - info->flash_id = FLASH_MAN_FUJ; - break; - - default: - info->flash_id = FLASH_UNKNOWN; - flash_reset (addr); - return 0; - } - - value = in8(addr + 1); /* device ID */ - iobarrier_rw(); - - switch (value) { - case AMD_ID_LV033C: - info->flash_id += FLASH_AM033C; - info->size = hwc_flash_size(); - if (info->size > CONFIG_SYS_MAX_FLASH_SIZE) { - printf("U-Boot supports only %d MB\n", - CONFIG_SYS_MAX_FLASH_SIZE); - info->size = CONFIG_SYS_MAX_FLASH_SIZE; - } - info->sector_count = info->size / 0x10000; - break; /* => 4 MB */ - - default: - info->flash_id = FLASH_UNKNOWN; - flash_reset (addr); - return (0); /* => no or unknown flash */ - - } - - if (!flash_get_offsets (addr, info)) { - flash_reset (addr); - return 0; - } - -#if 0 - /* check for protected sectors */ - for (i = 0; i < info->sector_count; i++) { - /* read sector protection at sector address, (A7 .. A0) = 0x02 */ - /* D0 = 1 if protected */ - value = in8(info->start[i] + 2); - iobarrier_rw(); - info->protect[i] = (value & 1) != 0; - } -#endif - - /* - * Reset bank to read mode - */ - flash_reset (addr); - - return (info->size); -} - -static int flash_get_offsets (u32 base, flash_info_t *info) -{ - unsigned int i, size; - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM033C: - /* set sector offsets for uniform sector type */ - size = info->size / info->sector_count; - for (i = 0; i < info->sector_count; i++) { - info->start[i] = base + i * size; - } - break; - default: - return 0; - } - - return 1; -} - -int flash_erase (flash_info_t *info, int s_first, int s_last) -{ - volatile u32 addr = info->start[0]; - int flag, prot, sect, l_sect; - ulong start, now, last; - - if (s_first < 0 || s_first > s_last) { - if (info->flash_id == FLASH_UNKNOWN) { - printf ("- missing\n"); - } else { - printf ("- no sectors to erase\n"); - } - return 1; - } - - if (info->flash_id == FLASH_UNKNOWN || - info->flash_id > FLASH_AMD_COMP) { - printf ("Can't erase unknown flash type %08lx - aborted\n", - info->flash_id); - return 1; - } - - prot = 0; - for (sect=s_first; sect<=s_last; ++sect) { - if (info->protect[sect]) { - prot++; - } - } - - if (prot) { - printf ("- Warning: %d protected sectors will not be erased!\n", - prot); - } else { - printf ("\n"); - } - - l_sect = -1; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - out8(addr + 0x555, 0xAA); - iobarrier_rw(); - out8(addr + 0x2AA, 0x55); - iobarrier_rw(); - out8(addr + 0x555, 0x80); - iobarrier_rw(); - out8(addr + 0x555, 0xAA); - iobarrier_rw(); - out8(addr + 0x2AA, 0x55); - iobarrier_rw(); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect<=s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - addr = info->start[sect]; - out8(addr, 0x30); - iobarrier_rw(); - l_sect = sect; - } - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* wait at least 80us - let's wait 1 ms */ - udelay (1000); - - /* - * We wait for the last triggered sector - */ - if (l_sect < 0) - goto DONE; - - start = get_timer (0); - last = start; - addr = info->start[l_sect]; - while ((in8(addr) & 0x80) != 0x80) { - if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - return 1; - } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - putc ('.'); - last = now; - } - iobarrier_rw(); - } - -DONE: - /* reset to read mode */ - flash_reset (info->start[0]); - - printf (" done\n"); - return 0; -} - -/* - * Copy memory to flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) -{ - ulong cp, wp, data; - int i, l, rc; - - wp = (addr & ~3); /* get lower word aligned address */ - - /* - * handle unaligned start bytes - */ - if ((l = addr - wp) != 0) { - data = 0; - for (i=0, cp=wp; i<l; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - for (; i<4 && cnt>0; ++i) { - data = (data << 8) | *src++; - --cnt; - ++cp; - } - for (; cnt==0 && i<4; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); - } - wp += 4; - } - - /* - * handle word aligned part - */ - while (cnt >= 4) { - data = 0; - for (i=0; i<4; ++i) { - data = (data << 8) | *src++; - } - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); - } - wp += 4; - cnt -= 4; - } - - if (cnt == 0) { - return (0); - } - - /* - * handle unaligned tail bytes - */ - data = 0; - for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { - data = (data << 8) | *src++; - --cnt; - } - for (; i<4; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - - return (write_word(info, wp, data)); -} - -/* - * Write a word to Flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_word (flash_info_t *info, ulong dest, ulong data) -{ - volatile u32 addr = info->start[0]; - ulong start; - int flag, i; - - /* Check if Flash is (sufficiently) erased */ - if ((in32(dest) & data) != data) { - return (2); - } - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - /* first, perform an unlock bypass command to speed up flash writes */ - out8(addr + 0x555, 0xAA); - iobarrier_rw(); - out8(addr + 0x2AA, 0x55); - iobarrier_rw(); - out8(addr + 0x555, 0x20); - iobarrier_rw(); - - /* write each byte out */ - for (i = 0; i < 4; i++) { - char *data_ch = (char *)&data; - out8(addr, 0xA0); - iobarrier_rw(); - out8(dest+i, data_ch[i]); - iobarrier_rw(); - udelay(10); /* XXX */ - } - - /* we're done, now do an unlock bypass reset */ - out8(addr, 0x90); - iobarrier_rw(); - out8(addr, 0x00); - iobarrier_rw(); - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer (0); - while ((in32(dest) & 0x80808080) != (data & 0x80808080)) { - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { - return (1); - } - iobarrier_rw(); - } - - flash_reset (addr); - - return (0); -} - -/* - * Reset bank to read mode - */ -static void flash_reset (u32 addr) -{ - out8(addr, 0xF0); /* reset bank */ - iobarrier_rw(); -} - -void flash_print_info (flash_info_t *info) -{ - int i; - - if (info->flash_id == FLASH_UNKNOWN) { - printf ("missing or unknown FLASH type\n"); - return; - } - - switch (info->flash_id & FLASH_VENDMASK) { - case FLASH_MAN_AMD: printf ("AMD "); break; - case FLASH_MAN_FUJ: printf ("FUJITSU "); break; - case FLASH_MAN_BM: printf ("BRIGHT MICRO "); break; - default: printf ("Unknown Vendor "); break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM033C: printf ("AM29LV033C (32 Mbit, uniform sectors)\n"); - break; - default: printf ("Unknown Chip Type\n"); - break; - } - - if (info->size % 0x100000 == 0) { - printf (" Size: %ld MB in %d Sectors\n", - info->size / 0x100000, info->sector_count); - } - else if (info->size % 0x400 == 0) { - printf (" Size: %ld KB in %d Sectors\n", - info->size / 0x400, info->sector_count); - } - else { - printf (" Size: %ld B in %d Sectors\n", - info->size, info->sector_count); - } - - printf (" Sector Start Addresses:"); - for (i=0; i<info->sector_count; ++i) { - if ((i % 5) == 0) - printf ("\n "); - printf (" %08lX%s", - info->start[i], - info->protect[i] ? " (RO)" : " " - ); - } - printf ("\n"); -} diff --git a/board/iphase4539/iphase4539.c b/board/iphase4539/iphase4539.c deleted file mode 100644 index d40d2b6..0000000 --- a/board/iphase4539/iphase4539.c +++ /dev/null @@ -1,408 +0,0 @@ -/* - * (C) Copyright 2002 Wolfgang Grandegger <wg@denx.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <ioports.h> -#include <mpc8260.h> -#include <asm/io.h> -#include <asm/immap_8260.h> - -int hwc_flash_size (void); -int hwc_local_sdram_size (void); -int hwc_main_sdram_size (void); -int hwc_serial_number (void); -int hwc_mac_address (char *str); -int hwc_manufact_date (char *str); -int seeprom_read (int addr, uchar * data, int size); - -/* - * I/O Port configuration table - * - * if conf is 1, then that port pin will be configured at boot time - * according to the five values podr/pdir/ppar/psor/pdat for that entry - * - * The port definitions are taken from the old firmware (see - * also SYS/H/4539.H): - * - * ppar psor pdir podr pdat - * PA: 0x02ffffff 0x02c00000 0xfc403fe6 0x00000000 0x02403fc0 - * PB: 0x0fffdeb0 0x000000b0 0x0f032347 0x00000000 0x0f000290 - * PC: 0x030ffa55 0x030f0040 0xbcf005ea 0x00000000 0xc0c0ba7d - * PD: 0x09c04e3c 0x01000e3c 0x0a7ff1c3 0x00000000 0x00ce0ae9 - */ -const iop_conf_t iop_conf_tab[4][32] = { - - /* Port A configuration */ - { /* conf ppar psor pdir podr pdat */ - {0, 1, 0, 0, 0, 0}, /* PA31 FCC1_TXENB SLAVE */ - {0, 1, 0, 1, 0, 0}, /* PA30 FCC1_TXCLAV SLAVE */ - {0, 1, 0, 1, 0, 0}, /* PA29 FCC1_TXSOC */ - {0, 1, 0, 0, 0, 0}, /* PA28 FCC1_RXENB SLAVE */ - {0, 1, 0, 0, 0, 0}, /* PA27 FCC1_RXSOC */ - {0, 1, 0, 1, 0, 0}, /* PA26 FCC1_RXCLAV SLAVE */ - {0, 1, 0, 1, 0, 1}, /* PA25 FCC1_TXD0 */ - {0, 1, 0, 1, 0, 1}, /* PA24 FCC1_TXD1 */ - {0, 1, 0, 1, 0, 1}, /* PA23 FCC1_TXD2 */ - {0, 1, 0, 1, 0, 1}, /* PA22 FCC1_TXD3 */ - {0, 1, 0, 1, 0, 1}, /* PA21 FCC1_TXD4 */ - {0, 1, 0, 1, 0, 1}, /* PA20 FCC1_TXD5 */ - {0, 1, 0, 1, 0, 1}, /* PA19 FCC1_TXD6 */ - {0, 1, 0, 1, 0, 1}, /* PA18 FCC1_TXD7 */ - {0, 1, 0, 0, 0, 0}, /* PA17 FCC1_RXD7 */ - {0, 1, 0, 0, 0, 0}, /* PA16 FCC1_RXD6 */ - {0, 1, 0, 0, 0, 0}, /* PA15 FCC1_RXD5 */ - {0, 1, 0, 0, 0, 0}, /* PA14 FCC1_RXD4 */ - {0, 1, 0, 0, 0, 0}, /* PA13 FCC1_RXD3 */ - {0, 1, 0, 0, 0, 0}, /* PA12 FCC1_RXD2 */ - {0, 1, 0, 0, 0, 0}, /* PA11 FCC1_RXD1 */ - {0, 1, 0, 0, 0, 0}, /* PA10 FCC1_RXD0 */ - {0, 1, 1, 1, 0, 1}, /* PA9 TDMA1_L1TXD */ - {0, 1, 1, 0, 0, 0}, /* PA8 TDMA1_L1RXD */ - {0, 0, 0, 0, 0, 0}, /* PA7 CONFIG0 */ - {0, 1, 1, 0, 0, 1}, /* PA6 TDMA1_L1RSYNC */ - {0, 0, 0, 1, 0, 0}, /* PA5 FCC2:RxAddr[2] */ - {0, 0, 0, 1, 0, 0}, /* PA4 FCC2:RxAddr[1] */ - {0, 0, 0, 1, 0, 0}, /* PA3 FCC2:RxAddr[0] */ - {0, 0, 0, 1, 0, 0}, /* PA2 FCC2:TxAddr[0] */ - {0, 0, 0, 1, 0, 0}, /* PA1 FCC2:TxAddr[1] */ - {0, 0, 0, 1, 0, 0} /* PA0 FCC2:TxAddr[2] */ - }, - /* Port B configuration */ - { /* conf ppar psor pdir podr pdat */ - {0, 0, 0, 1, 0, 0}, /* PB31 FCC2_RXSOC */ - {0, 0, 0, 1, 0, 0}, /* PB30 FCC2_TXSOC */ - {0, 0, 0, 1, 0, 0}, /* PB29 FCC2_RXCLAV */ - {0, 0, 0, 0, 0, 0}, /* PB28 CONFIG2 */ - {0, 1, 1, 0, 0, 1}, /* PB27 FCC2_TXD0 */ - {0, 1, 1, 0, 0, 0}, /* PB26 FCC2_TXD1 */ - {0, 0, 0, 1, 0, 0}, /* PB25 FCC2_TXD4 */ - {0, 1, 1, 0, 0, 1}, /* PB24 FCC2_TXD5 */ - {0, 0, 0, 1, 0, 0}, /* PB23 FCC2_TXD6 */ - {0, 1, 0, 1, 0, 1}, /* PB22 FCC2_TXD7 */ - {0, 1, 0, 0, 0, 0}, /* PB21 FCC2_RXD7 */ - {0, 1, 0, 0, 0, 0}, /* PB20 FCC2_RXD6 */ - {0, 1, 0, 0, 0, 0}, /* PB19 FCC2_RXD5 */ - {0, 0, 0, 1, 0, 0}, /* PB18 FCC2_RXD4 */ - {1, 1, 0, 0, 0, 0}, /* PB17 FCC3_RX_DV */ - {1, 1, 0, 0, 0, 0}, /* PB16 FCC3_RX_ER */ - {1, 1, 0, 1, 0, 0}, /* PB15 FCC3_TX_ER */ - {1, 1, 0, 1, 0, 0}, /* PB14 FCC3_TX_EN */ - {1, 1, 0, 0, 0, 0}, /* PB13 FCC3_COL */ - {1, 1, 0, 0, 0, 0}, /* PB12 FCC3_CRS */ - {1, 1, 0, 0, 0, 0}, /* PB11 FCC3_RXD3 */ - {1, 1, 0, 0, 0, 0}, /* PB10 FCC3_RXD2 */ - {1, 1, 0, 0, 0, 0}, /* PB9 FCC3_RXD1 */ - {1, 1, 0, 0, 0, 0}, /* PB8 FCC3_RXD0 */ - {1, 1, 0, 1, 0, 1}, /* PB7 FCC3_TXD0 */ - {1, 1, 0, 1, 0, 1}, /* PB6 FCC3_TXD1 */ - {1, 1, 0, 1, 0, 1}, /* PB5 FCC3_TXD2 */ - {1, 1, 0, 1, 0, 1}, /* PB4 FCC3_TXD3 */ - {0, 0, 0, 0, 0, 0}, /* PB3 */ - {0, 0, 0, 0, 0, 0}, /* PB2 */ - {0, 0, 0, 0, 0, 0}, /* PB1 */ - {0, 0, 0, 0, 0, 0}, /* PB0 */ - }, - /* Port C configuration */ - { /* conf ppar psor pdir podr pdat */ - {0, 1, 0, 0, 0, 1}, /* PC31 CLK1 */ - {0, 0, 0, 1, 0, 0}, /* PC30 U1MASTER_N */ - {0, 1, 0, 0, 0, 1}, /* PC29 CLK3 */ - {0, 0, 0, 1, 0, 1}, /* PC28 -MT90220_RST */ - {0, 1, 0, 0, 0, 1}, /* PC27 CLK5 */ - {0, 0, 0, 1, 0, 1}, /* PC26 -QUADFALC_RST */ - {0, 1, 1, 1, 0, 1}, /* PC25 BRG4 */ - {1, 0, 0, 1, 0, 0}, /* PC24 MDIO */ - {1, 0, 0, 1, 0, 0}, /* PC23 MDC */ - {0, 1, 0, 0, 0, 1}, /* PC22 CLK10 */ - {0, 0, 0, 1, 0, 0}, /* PC21 */ - {0, 1, 0, 0, 0, 1}, /* PC20 CLK12 */ - {0, 1, 0, 0, 0, 1}, /* PC19 CLK13 */ - {1, 1, 0, 0, 0, 1}, /* PC18 CLK14 */ - {0, 1, 0, 0, 0, 0}, /* PC17 CLK15 */ - {1, 1, 0, 0, 0, 1}, /* PC16 CLK16 */ - {0, 1, 1, 0, 0, 0}, /* PC15 FCC1_TXADDR0 SLAVE */ - {0, 1, 1, 0, 0, 0}, /* PC14 FCC1_RXADDR0 SLAVE */ - {0, 1, 1, 0, 0, 0}, /* PC13 FCC1_TXADDR1 SLAVE */ - {0, 1, 1, 0, 0, 0}, /* PC12 FCC1_RXADDR1 SLAVE */ - {0, 0, 0, 1, 0, 0}, /* PC11 FCC2_RXD2 */ - {0, 0, 0, 1, 0, 0}, /* PC10 FCC2_RXD3 */ - {0, 0, 0, 1, 0, 1}, /* PC9 LTMODE */ - {0, 0, 0, 1, 0, 1}, /* PC8 SELSYNC */ - {0, 1, 1, 0, 0, 0}, /* PC7 FCC1_TXADDR2 SLAVE */ - {0, 1, 1, 0, 0, 0}, /* PC6 FCC1_RXADDR2 SLAVE */ - {0, 0, 0, 1, 0, 0}, /* PC5 FCC2_TXCLAV MASTER */ - {0, 0, 0, 1, 0, 0}, /* PC4 FCC2_RXENB MASTER */ - {0, 0, 0, 1, 0, 0}, /* PC3 FCC2_TXD2 */ - {0, 0, 0, 1, 0, 0}, /* PC2 FCC2_TXD3 */ - {0, 0, 0, 0, 0, 1}, /* PC1 PTMC -PTEENB */ - {0, 0, 0, 1, 0, 1}, /* PC0 COMCLK_N */ - }, - /* Port D configuration */ - { /* conf ppar psor pdir podr pdat */ - {0, 0, 0, 1, 0, 1}, /* PD31 -CAM_RST */ - {0, 0, 0, 1, 0, 0}, /* PD30 FCC2_TXENB */ - {0, 1, 1, 0, 0, 0}, /* PD29 FCC1_RXADDR3 SLAVE */ - {0, 1, 1, 0, 0, 1}, /* PD28 TDMC1_L1TXD */ - {0, 1, 1, 0, 0, 0}, /* PD27 TDMC1_L1RXD */ - {0, 1, 1, 0, 0, 1}, /* PD26 TDMC1_L1RSYNC */ - {0, 0, 0, 1, 0, 1}, /* PD25 LED0 -OFF */ - {0, 0, 0, 1, 0, 1}, /* PD24 LED5 -OFF */ - {1, 0, 0, 1, 0, 1}, /* PD23 -LXT971_RST */ - {0, 1, 1, 0, 0, 1}, /* PD22 TDMA2_L1TXD */ - {0, 1, 1, 0, 0, 0}, /* PD21 TDMA2_L1RXD */ - {0, 1, 1, 0, 0, 1}, /* PD20 TDMA2_L1RSYNC */ - {0, 0, 0, 1, 0, 0}, /* PD19 FCC2_TXADDR3 */ - {0, 0, 0, 1, 0, 0}, /* PD18 FCC2_RXADDR3 */ - {0, 1, 0, 1, 0, 0}, /* PD17 BRG2 */ - {0, 0, 0, 1, 0, 0}, /* PD16 */ - {0, 0, 0, 1, 0, 0}, /* PD15 PT2TO1 */ - {0, 0, 0, 1, 0, 1}, /* PD14 PT4TO3 */ - {0, 0, 0, 1, 0, 1}, /* PD13 -SWMODE */ - {0, 0, 0, 1, 0, 1}, /* PD12 -PTMODE */ - {0, 0, 0, 1, 0, 0}, /* PD11 FCC2_RXD0 */ - {0, 0, 0, 1, 0, 0}, /* PD10 FCC2_RXD1 */ - {1, 1, 0, 1, 0, 1}, /* PD9 SMC1_SMTXD */ - {1, 1, 0, 0, 0, 1}, /* PD8 SMC1_SMRXD */ - {0, 1, 1, 0, 0, 0}, /* PD7 FCC1_TXADDR3 SLAVE */ - {0, 0, 0, 1, 0, 0}, /* PD6 IMAMODE */ - {0, 0, 0, 0, 0, 0}, /* PD5 CONFIG2 */ - {0, 1, 0, 1, 0, 0}, /* PD4 BRG8 */ - {0, 0, 0, 0, 0, 0}, /* PD3 */ - {0, 0, 0, 0, 0, 0}, /* PD2 */ - {0, 0, 0, 0, 0, 0}, /* PD1 */ - {0, 0, 0, 0, 0, 0}, /* PD0 */ - } -}; - -phys_size_t initdram (int board_type) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8260_t *memctl = &immap->im_memctl; - volatile uchar *base; - ulong maxsize; - int i; - - memctl->memc_psrt = CONFIG_SYS_PSRT; - memctl->memc_mptpr = CONFIG_SYS_MPTPR; - -#ifndef CONFIG_SYS_RAMBOOT - immap->im_siu_conf.sc_ppc_acr = 0x00000026; - immap->im_siu_conf.sc_ppc_alrh = 0x01276345; - immap->im_siu_conf.sc_ppc_alrl = 0x89ABCDEF; - immap->im_siu_conf.sc_lcl_acr = 0x00000000; - immap->im_siu_conf.sc_lcl_alrh = 0x01234567; - immap->im_siu_conf.sc_lcl_alrl = 0x89ABCDEF; - immap->im_siu_conf.sc_tescr1 = 0x00004000; - immap->im_siu_conf.sc_ltescr1 = 0x00004000; - - /* Init Main SDRAM */ -#define OP_VALUE 0x404A241A -#define OP_VALUE_M (OP_VALUE & 0x87FFFFFF); - base = (uchar *) CONFIG_SYS_SDRAM_BASE; - memctl->memc_psdmr = 0x28000000 | OP_VALUE_M; - *base = 0xFF; - memctl->memc_psdmr = 0x08000000 | OP_VALUE_M; - for (i = 0; i < 8; i++) - *base = 0xFF; - memctl->memc_psdmr = 0x18000000 | OP_VALUE_M; - *(base + 0x110) = 0xFF; - memctl->memc_psdmr = OP_VALUE; - memctl->memc_lsdmr = 0x4086A522; - *base = 0xFF; - - /* We must be able to test a location outsize the maximum legal size - * to find out THAT we are outside; but this address still has to be - * mapped by the controller. That means, that the initial mapping has - * to be (at least) twice as large as the maximum expected size. - */ - maxsize = (1 + (~memctl->memc_or1 | 0x7fff)) / 2; - - maxsize = get_ram_size((long *)base, maxsize); - - memctl->memc_or1 |= ~(maxsize - 1); - - if (maxsize != hwc_main_sdram_size ()) - printf ("Oops: memory test has not found all memory!\n"); -#endif - - icache_enable (); - /* return total ram size of SDRAM */ - return (maxsize); -} - -int checkboard (void) -{ - char string[32]; - - hwc_manufact_date (string); - - printf ("Board: Interphase 4539 (#%d %s)\n", - hwc_serial_number (), - string); - -#ifdef DEBUG - printf ("Manufacturing date: %s\n", string); - printf ("Serial number : %d\n", hwc_serial_number ()); - printf ("FLASH size : %d MB\n", hwc_flash_size () >> 20); - printf ("Main SDRAM size : %d MB\n", hwc_main_sdram_size () >> 20); - printf ("Local SDRAM size : %d MB\n", hwc_local_sdram_size () >> 20); - hwc_mac_address (string); - printf ("MAC address : %s\n", string); -#endif - - return 0; -} - -int misc_init_r (void) -{ - char *s, str[32]; - int num; - - if ((s = getenv ("serial#")) == NULL && - (num = hwc_serial_number ()) != -1) { - sprintf (str, "%06d", num); - setenv ("serial#", str); - } - if ((s = getenv ("ethaddr")) == NULL && hwc_mac_address (str) == 0) { - setenv ("ethaddr", str); - } - return (0); -} - -/*************************************************************** - * We take some basic Hardware Configuration Parameter from the - * Serial EEPROM conected to the PSpan bridge. We keep it as - * simple as possible. - */ -int hwc_flash_size (void) -{ - uchar byte; - - if (!seeprom_read (0x40, &byte, sizeof (byte))) { - switch ((byte >> 2) & 0x3) { - case 0x1: - return 0x0400000; - break; - case 0x2: - return 0x0800000; - break; - case 0x3: - return 0x1000000; - default: - return 0x0100000; - } - } - return -1; -} -int hwc_local_sdram_size (void) -{ - uchar byte; - - if (!seeprom_read (0x40, &byte, sizeof (byte))) { - switch ((byte & 0x03)) { - case 0x1: - return 0x0800000; - case 0x2: - return 0x1000000; - default: - return 0; /* not present */ - } - } - return -1; -} -int hwc_main_sdram_size (void) -{ - uchar byte; - - if (!seeprom_read (0x41, &byte, sizeof (byte))) { - return 0x1000000 << ((byte >> 5) & 0x7); - } - return -1; -} -int hwc_serial_number (void) -{ - int sn = -1; - - if (!seeprom_read (0xa0, (uchar *) &sn, sizeof (sn))) { - sn = cpu_to_le32 (sn); - } - return sn; -} -int hwc_mac_address (char *str) -{ - char mac[6]; - - if (!seeprom_read (0xb0, (uchar *)mac, sizeof (mac))) { - sprintf (str, "%02x:%02x:%02x:%02x:%02x:%02x\n", - mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); - } else { - strcpy (str, "ERROR"); - return -1; - } - return 0; -} -int hwc_manufact_date (char *str) -{ - uchar byte; - int value; - - if (seeprom_read (0x92, &byte, sizeof (byte))) - goto out; - value = byte; - if (seeprom_read (0x93, &byte, sizeof (byte))) - goto out; - value += byte << 8; - sprintf (str, "%02d/%02d/%04d", - value & 0x1F, (value >> 5) & 0xF, - 1980 + ((value >> 9) & 0x1FF)); - return 0; - - out: - strcpy (str, "ERROR"); - return -1; -} - -#define PSPAN_ADDR 0xF0020000 -#define EEPROM_REG 0x408 -#define EEPROM_READ_CMD 0xA000 -#define PSPAN_WRITE(a,v) \ - *((volatile unsigned long *)(PSPAN_ADDR+(a))) = v; eieio() -#define PSPAN_READ(a) \ - *((volatile unsigned long *)(PSPAN_ADDR+(a))) - -int seeprom_read (int addr, uchar * data, int size) -{ - ulong val, cmd; - int i; - - for (i = 0; i < size; i++) { - - cmd = EEPROM_READ_CMD; - cmd |= ((addr + i) << 24) & 0xff000000; - - /* Wait for ACT to authorize write */ - while ((val = PSPAN_READ (EEPROM_REG)) & 0x80) - eieio (); - - /* Write command */ - PSPAN_WRITE (EEPROM_REG, cmd); - - /* Wait for data to be valid */ - while ((val = PSPAN_READ (EEPROM_REG)) & 0x80) - eieio (); - /* Do it twice, first read might be erratic */ - while ((val = PSPAN_READ (EEPROM_REG)) & 0x80) - eieio (); - - /* Read error */ - if (val & 0x00000040) { - return -1; - } else { - data[i] = (val >> 16) & 0xff; - } - } - return 0; -} |