add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/mips/fw/arc/cmdline.c
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@@ -17,6 +17,12 @@
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 #undef DEBUG_CMDLINE
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+/*
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+ * A 32-bit ARC PROM pass arguments and environment as 32-bit pointer.
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+ * These macro take care of sign extension.
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+ */
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+#define prom_argv(index) ((char *) (long)argv[(index)])
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+
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 static char *ignored[] = {
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 	"ConsoleIn=",
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 	"ConsoleOut=",
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@@ -32,14 +38,14 @@
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 	{ "OSLoadOptions=", "" }
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 };
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-static char * __init move_firmware_args(char* cp)
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+static char __init *move_firmware_args(int argc, LONG *argv, char *cp)
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 {
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 	char *s;
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 	int actr, i;
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 	actr = 1; /* Always ignore argv[0] */
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-	while (actr < prom_argc) {
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+	while (actr < argc) {
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 		for(i = 0; i < ARRAY_SIZE(used_arc); i++) {
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 			int len = strlen(used_arc[i][0]);
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@@ -64,7 +70,7 @@
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 	return cp;
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 }
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-void __init prom_init_cmdline(void)
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+void __init prom_init_cmdline(int argc, LONG *argv)
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 {
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 	char *cp;
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 	int actr, i;
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@@ -76,9 +82,9 @@
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 	 * Move ARC variables to the beginning to make sure they can be
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 	 * overridden by later arguments.
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 	 */
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-	cp = move_firmware_args(cp);
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+	cp = move_firmware_args(argc, argv, cp);
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-	while (actr < prom_argc) {
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+	while (actr < argc) {
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 		for (i = 0; i < ARRAY_SIZE(ignored); i++) {
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 			int len = strlen(ignored[i]);
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