add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/tty/serial/arc_uart.c
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@@ -21,10 +21,6 @@
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  *  -check if sysreq works
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  */
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-#if defined(CONFIG_SERIAL_ARC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
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-#define SUPPORT_SYSRQ
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-#endif
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-
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 #include <linux/module.h>
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 #include <linux/serial.h>
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 #include <linux/console.h>
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@@ -625,6 +621,7 @@
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 	port->flags = UPF_BOOT_AUTOCONF;
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 	port->line = dev_id;
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 	port->ops = &arc_serial_pops;
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+	port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_ARC_CONSOLE);
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 	port->fifosize = ARC_UART_TX_FIFO_SIZE;
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