add r8169 read mac form eeprom

hc

2024-02-19 1c055e55a242a33e574e48be530e06770a210dcd

 kernel/drivers/tty/serial/zs.c
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@@ -44,10 +44,6 @@
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  * complicated and prevents the use of some automatic modes of operation.
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  */
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-#if defined(CONFIG_SERIAL_ZS_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/bug.h>
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 #include <linux/console.h>
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 #include <linux/delay.h>
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@@ -992,7 +988,7 @@
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 static int zs_map_port(struct uart_port *uport)
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 {
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 	if (!uport->membase)
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-		uport->membase = ioremap_nocache(uport->mapbase,
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+		uport->membase = ioremap(uport->mapbase,
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 						 ZS_CHAN_IO_SIZE);
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 	if (!uport->membase) {
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 		printk(KERN_ERR "zs: Cannot map MMIO\n");
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@@ -1106,6 +1102,7 @@
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 			zport->scc	= &zs_sccs[chip];
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 			zport->clk_mode	= 16;
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+			uport->has_sysrq = IS_ENABLED(CONFIG_SERIAL_ZS_CONSOLE);
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 			uport->irq	= zs_parms.irq[chip];
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 			uport->uartclk	= ZS_CLOCK;
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 			uport->fifosize	= 1;