From aaed2eb5c741b4d2184d0a270edf30e4209fa07d Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date: Fri, 6 Dec 2013 16:34:09 +0900
Subject: [PATCH] examples: x86: delete 82559_eeprom

Commit fea25720 renamed arch/i386 to arch/x86.
But it missed to modify examples/standalone/Makefile.

Since then, examples/standalone/82559_eeprom has
never compiled and nobody has noticed that.

After some discussion on ML, we agreed to delete this example.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---
 Makefile                           |   3 +-
 examples/standalone/.gitignore     |   1 -
 examples/standalone/82559_eeprom.c | 356 -----------------------------
 examples/standalone/Makefile       |   5 -
 4 files changed, 1 insertion(+), 364 deletions(-)
 delete mode 100644 examples/standalone/82559_eeprom.c

diff --git a/Makefile b/Makefile
index ca3c5c3c5d..e9fc83c4c7 100644
--- a/Makefile
+++ b/Makefile
@@ -755,8 +755,7 @@ $(obj).boards.depend:	boards.cfg
 #########################################################################
 
 clean:
-	@rm -f $(obj)examples/standalone/82559_eeprom			  \
-	       $(obj)examples/standalone/atmel_df_pow2			  \
+	@rm -f $(obj)examples/standalone/atmel_df_pow2			  \
 	       $(obj)examples/standalone/eepro100_eeprom		  \
 	       $(obj)examples/standalone/hello_world			  \
 	       $(obj)examples/standalone/interrupt			  \
diff --git a/examples/standalone/.gitignore b/examples/standalone/.gitignore
index 4d9ce66402..1ff25b510d 100644
--- a/examples/standalone/.gitignore
+++ b/examples/standalone/.gitignore
@@ -1,4 +1,3 @@
-/82559_eeprom
 /atmel_df_pow2
 /eepro100_eeprom
 /hello_world
diff --git a/examples/standalone/82559_eeprom.c b/examples/standalone/82559_eeprom.c
deleted file mode 100644
index c253055c0f..0000000000
--- a/examples/standalone/82559_eeprom.c
+++ /dev/null
@@ -1,356 +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.
- */
-
-#define _PPC_STRING_H_		/* avoid unnecessary str/mem functions */
-
-#include <common.h>
-#include <exports.h>
-#include <asm/io.h>
-
-
-/* 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));
-}
-
-
-void * memcpy(void * dest,const void *src,size_t count)
-{
-	char *tmp = (char *) dest, *s = (char *) src;
-
-	while (count--)
-		*tmp++ = *s++;
-
-	return dest;
-}
-
-
-/* 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;
-}
-
-static unsigned int hatoi(char *p, char **errp)
-{
-	unsigned int res = 0;
-
-	while (1) {
-		switch (*p) {
-		case 'a':
-		case 'b':
-		case 'c':
-		case 'd':
-		case 'e':
-		case 'f':
-			res |= (*p - 'a' + 10);
-			break;
-		case 'A':
-		case 'B':
-		case 'C':
-		case 'D':
-		case 'E':
-		case 'F':
-			res |= (*p - 'A' + 10);
-			break;
-		case '0':
-		case '1':
-		case '2':
-		case '3':
-		case '4':
-		case '5':
-		case '6':
-		case '7':
-		case '8':
-		case '9':
-			res |= (*p - '0');
-			break;
-		default:
-			if (errp) {
-				*errp = p;
-			}
-		return res;
-		}
-		p++;
-		if (*p == 0) {
-			break;
-		}
-		res <<= 4;
-	}
-
-	if (errp) {
-		*errp = NULL;
-	}
-
-	return res;
-}
-
-static unsigned char *gethwaddr(char *in, unsigned char *out)
-{
-	char tmp[3];
-	int i;
-	char *err;
-
-	for (i=0;i<6;i++) {
-		if (in[i*3+2] == 0 && i == 5) {
-			out[i] = hatoi(&in[i*3], &err);
-			if (err) {
-				return NULL;
-			}
-		} else if (in[i*3+2] == ':' && i < 5) {
-			tmp[0] = in[i*3];
-			tmp[1] = in[i*3+1];
-			tmp[2] = 0;
-			out[i] = hatoi(tmp, &err);
-			if (err) {
-				return NULL;
-			}
-		} else {
-			return NULL;
-		}
-	}
-
-	return out;
-}
-
-static u32
-read_config_dword(int bus, int dev, int func, int reg)
-{
-	u32 res;
-
-	outl(0x80000000|(bus&0xff)<<16|(dev&0x1f)<<11|(func&7)<<8|(reg&0xfc),
-	     0xcf8);
-	res = inl(0xcfc);
-	outl(0, 0xcf8);
-	return res;
-}
-
-static u16
-read_config_word(int bus, int dev, int func, int reg)
-{
-	u32 res;
-
-	outl(0x80000000|(bus&0xff)<<16|(dev&0x1f)<<11|(func&7)<<8|(reg&0xfc),
-	     0xcf8);
-	res = inw(0xcfc + (reg & 2));
-	outl(0, 0xcf8);
-	return res;
-}
-
-static void
-write_config_word(int bus, int dev, int func, int reg, u16 data)
-{
-
-	outl(0x80000000|(bus&0xff)<<16|(dev&0x1f)<<11|(func&7)<<8|(reg&0xfc),
-	     0xcf8);
-	outw(data, 0xcfc + (reg & 2));
-	outl(0, 0xcf8);
-}
-
-
-int main (int argc, char * const argv[])
-{
-	unsigned char *eth_addr;
-	uchar buf[6];
-	int instance;
-
-	app_startup(argv);
-	if (argc != 2) {
-		printf ("call with base Ethernet address\n");
-		return 1;
-	}
-
-
-	eth_addr = gethwaddr(argv[1], buf);
-	if (NULL == eth_addr) {
-		printf ("Can not parse ethernet address\n");
-		return 1;
-	}
-	if (eth_addr[5] & 0x01) {
-		printf("Base Ethernet address must be even\n");
-	}
-
-
-	for (instance = 0; instance < 2; instance ++)  {
-		unsigned int io_addr;
-		unsigned char mac[6];
-		int bar1 = read_config_dword(0, 6+instance, 0, 0x14);
-		if (! (bar1 & 1)) {
-			printf("ETH%d is disabled %x\n", instance, bar1);
-		} else {
-			printf("ETH%d IO=0x%04x\n", instance, bar1 & ~3);
-		}
-		io_addr = (bar1 & (~3L));
-
-
-		write_config_word(0, 6+instance, 0, 4,
-				  read_config_word(0, 6+instance, 0, 4) | 1);
-		printf("ETH%d CMD %04x\n", instance,
-			   read_config_word(0, 6+instance, 0, 4));
-
-		memcpy(mac, eth_addr, 6);
-		mac[5] += instance;
-
-		printf("got io=%04x, ha=%02x:%02x:%02x:%02x:%02x:%02x\n",
-			   io_addr, mac[0], mac[1], mac[2],
-			   mac[3], mac[4], mac[5]);
-		reset_eeprom(io_addr, mac);
-	}
-	return 0;
-}
diff --git a/examples/standalone/Makefile b/examples/standalone/Makefile
index 6e7500dc75..0841c758ff 100644
--- a/examples/standalone/Makefile
+++ b/examples/standalone/Makefile
@@ -12,11 +12,6 @@ ELF-y        := hello_world
 ELF-$(CONFIG_SMC91111)           += smc91111_eeprom
 ELF-$(CONFIG_SMC911X)            += smc911x_eeprom
 ELF-$(CONFIG_SPI_FLASH_ATMEL)    += atmel_df_pow2
-# TODO:
-#   - Fix the warning of 82559_eeprom.c and uncomment the following
-# or
-#   - Delete 82559_eeprom.c and the following line
-#ELF-$(CONFIG_X86)                += 82559_eeprom
 ELF-$(CONFIG_MPC5xxx)            += interrupt
 ELF-$(CONFIG_8xx)                += test_burst timer
 ELF-$(CONFIG_8260)               += mem_to_mem_idma2intr
-- 
2.25.1