diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/standalone/Makefile | 4 | ||||
| -rw-r--r-- | examples/standalone/eepro100_eeprom.c | 214 |
2 files changed, 1 insertions, 217 deletions
diff --git a/examples/standalone/Makefile b/examples/standalone/Makefile index 4afedea..9346921 100644 --- a/examples/standalone/Makefile +++ b/examples/standalone/Makefile @@ -8,7 +8,6 @@ include $(TOPDIR)/config.mk ELF-$(ARCH) := -ELF-$(BOARD) := ELF-$(CPU) := ELF-y := hello_world @@ -20,14 +19,13 @@ ELF-mpc5xxx += interrupt ELF-mpc8xx += test_burst timer ELF-mpc8260 += mem_to_mem_idma2intr ELF-ppc += sched -ELF-oxc += eepro100_eeprom # # Some versions of make do not handle trailing white spaces properly; # leading to build failures. The problem was found with GNU Make 3.80. # Using 'strip' as a workaround for the problem. # -ELF := $(strip $(ELF-y) $(ELF-$(ARCH)) $(ELF-$(BOARD)) $(ELF-$(CPU))) +ELF := $(strip $(ELF-y) $(ELF-$(ARCH)) $(ELF-$(CPU))) SREC := $(addsuffix .srec,$(ELF)) BIN := $(addsuffix .bin,$(ELF)) diff --git a/examples/standalone/eepro100_eeprom.c b/examples/standalone/eepro100_eeprom.c deleted file mode 100644 index 3c7f380..0000000 --- a/examples/standalone/eepro100_eeprom.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * Copyright 1998-2001 by Donald Becker. - * This software may be used and distributed according to the terms of - * the GNU General Public License (GPL), incorporated herein by reference. - * Contact the author for use under other terms. - * - * This program must be compiled with "-O"! - * See the bottom of this file for the suggested compile-command. - * - * The author may be reached as becker@scyld.com, or C/O - * Scyld Computing Corporation - * 410 Severn Ave., Suite 210 - * Annapolis MD 21403 - * - * Common-sense licensing statement: Using any portion of this program in - * your own program means that you must give credit to the original author - * and release the resulting code under the GPL. - */ - -/* avoid unnecessary memcpy function */ -#define _PPC_STRING_H_ - -#include <common.h> -#include <exports.h> - -static int reset_eeprom(unsigned long ioaddr, unsigned char *hwaddr); - -int eepro100_eeprom(int argc, char * const argv[]) -{ - int ret = 0; - - unsigned char hwaddr1[6] = { 0x00, 0x00, 0x02, 0x03, 0x04, 0x05 }; - unsigned char hwaddr2[6] = { 0x00, 0x00, 0x02, 0x03, 0x04, 0x06 }; - - app_startup(argv); - -#if defined(CONFIG_OXC) - ret |= reset_eeprom(0x80000000, hwaddr1); - ret |= reset_eeprom(0x81000000, hwaddr2); -#endif - - return ret; -} - -/* Default EEPROM for i82559 */ -static unsigned short default_eeprom[64] = { - 0x0100, 0x0302, 0x0504, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0x40c0, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, - 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff -}; - -static unsigned short eeprom[256]; - -static int eeprom_size = 64; -static int eeprom_addr_size = 6; - -static int debug = 0; - -static inline unsigned short swap16(unsigned short x) -{ - return (((x & 0xff) << 8) | ((x & 0xff00) >> 8)); -} - -static inline void outw(short data, long addr) -{ - *(volatile short *)(addr) = swap16(data); -} - -static inline short inw(long addr) -{ - return swap16(*(volatile short *)(addr)); -} - -void *memcpy(void *dst, const void *src, unsigned int len) -{ - char *ret = dst; - while (len-- > 0) { - *ret++ = *((char *)src); - src++; - } - return (void *)ret; -} - -/* The EEPROM commands include the alway-set leading bit. */ -#define EE_WRITE_CMD (5) -#define EE_READ_CMD (6) -#define EE_ERASE_CMD (7) - -/* Serial EEPROM section. */ -#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */ -#define EE_CS 0x02 /* EEPROM chip select. */ -#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */ -#define EE_DATA_READ 0x08 /* EEPROM chip data out. */ -#define EE_ENB (0x4800 | EE_CS) -#define EE_WRITE_0 0x4802 -#define EE_WRITE_1 0x4806 -#define EE_OFFSET 14 - -/* Delay between EEPROM clock transitions. */ -#define eeprom_delay(ee_addr) inw(ee_addr) - -/* Wait for the EEPROM to finish the previous operation. */ -static int eeprom_busy_poll(long ee_ioaddr) -{ - int i; - outw(EE_ENB, ee_ioaddr); - for (i = 0; i < 10000; i++) /* Typical 2000 ticks */ - if (inw(ee_ioaddr) & EE_DATA_READ) - break; - return i; -} - -/* This executes a generic EEPROM command, typically a write or write enable. - It returns the data output from the EEPROM, and thus may also be used for - reads. */ -static int do_eeprom_cmd(long ioaddr, int cmd, int cmd_len) -{ - unsigned retval = 0; - long ee_addr = ioaddr + EE_OFFSET; - - if (debug > 1) - printf(" EEPROM op 0x%x: ", cmd); - - outw(EE_ENB | EE_SHIFT_CLK, ee_addr); - - /* Shift the command bits out. */ - do { - short dataval = (cmd & (1 << cmd_len)) ? EE_WRITE_1 : EE_WRITE_0; - outw(dataval, ee_addr); - eeprom_delay(ee_addr); - if (debug > 2) - printf("%X", inw(ee_addr) & 15); - outw(dataval | EE_SHIFT_CLK, ee_addr); - eeprom_delay(ee_addr); - retval = (retval << 1) | ((inw(ee_addr) & EE_DATA_READ) ? 1 : 0); - } while (--cmd_len >= 0); -#if 0 - outw(EE_ENB, ee_addr); -#endif - /* Terminate the EEPROM access. */ - outw(EE_ENB & ~EE_CS, ee_addr); - if (debug > 1) - printf(" EEPROM result is 0x%5.5x.\n", retval); - return retval; -} - -static int read_eeprom(long ioaddr, int location, int addr_len) -{ - return do_eeprom_cmd(ioaddr, ((EE_READ_CMD << addr_len) | location) - << 16 , 3 + addr_len + 16) & 0xffff; -} - -static void write_eeprom(long ioaddr, int index, int value, int addr_len) -{ - long ee_ioaddr = ioaddr + EE_OFFSET; - int i; - - /* Poll for previous op finished. */ - eeprom_busy_poll(ee_ioaddr); /* Typical 0 ticks */ - /* Enable programming modes. */ - do_eeprom_cmd(ioaddr, (0x4f << (addr_len-4)), 3 + addr_len); - /* Do the actual write. */ - do_eeprom_cmd(ioaddr, - (((EE_WRITE_CMD<<addr_len) | index)<<16) | (value & 0xffff), - 3 + addr_len + 16); - /* Poll for write finished. */ - i = eeprom_busy_poll(ee_ioaddr); /* Typical 2000 ticks */ - if (debug) - printf(" Write finished after %d ticks.\n", i); - /* Disable programming. This command is not instantaneous, so we check - for busy before the next op. */ - do_eeprom_cmd(ioaddr, (0x40 << (addr_len-4)), 3 + addr_len); - eeprom_busy_poll(ee_ioaddr); -} - -static int reset_eeprom(unsigned long ioaddr, unsigned char *hwaddr) -{ - unsigned short checksum = 0; - int size_test; - int i; - - printf("Resetting i82559 EEPROM @ 0x%08lX ... ", ioaddr); - - size_test = do_eeprom_cmd(ioaddr, (EE_READ_CMD << 8) << 16, 27); - eeprom_addr_size = (size_test & 0xffe0000) == 0xffe0000 ? 8 : 6; - eeprom_size = 1 << eeprom_addr_size; - - memcpy(eeprom, default_eeprom, sizeof default_eeprom); - - for (i = 0; i < 3; i++) - eeprom[i] = (hwaddr[i*2+1]<<8) + hwaddr[i*2]; - - /* Recalculate the checksum. */ - for (i = 0; i < eeprom_size - 1; i++) - checksum += eeprom[i]; - eeprom[i] = 0xBABA - checksum; - - for (i = 0; i < eeprom_size; i++) - write_eeprom(ioaddr, i, eeprom[i], eeprom_addr_size); - - for (i = 0; i < eeprom_size; i++) - if (read_eeprom(ioaddr, i, eeprom_addr_size) != eeprom[i]) { - printf("failed\n"); - return 1; - } - - printf("done\n"); - return 0; -} |