MIPS: Octeon: Remove vestiges of CONFIG_CAVIUM_OCTEON_2ND_KERNEL

This config option never really worked, and has bit-rotted to the
point of being completely useless.  Remove it completely.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Steven J. Hill <steven.hill@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/15314/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/cavium-octeon/Kconfig

@@ -25,15 +25,6 @@ endif # CPU_CAVIUM_OCTEON
 
 if CAVIUM_OCTEON_SOC
 
-config CAVIUM_OCTEON_2ND_KERNEL
-	bool "Build the kernel to be used as a 2nd kernel on the same chip"
-	default "n"
-	help
-	  This option configures this kernel to be linked at a different
-	  address and use the 2nd uart for output. This allows a kernel built
-	  with this option to be run at the same time as one built without this
-	  option.
-
 config CAVIUM_OCTEON_LOCK_L2
 	bool "Lock often used kernel code in the L2"
 	default "y"

arch/mips/cavium-octeon/Platform

@@ -4,8 +4,4 @@
 platform-$(CONFIG_CAVIUM_OCTEON_SOC)	+= cavium-octeon/
 cflags-$(CONFIG_CAVIUM_OCTEON_SOC)	+=				\
 		-I$(srctree)/arch/mips/include/asm/mach-cavium-octeon
-ifdef CONFIG_CAVIUM_OCTEON_2ND_KERNEL
-load-$(CONFIG_CAVIUM_OCTEON_SOC)	+= 0xffffffff84100000
-else
 load-$(CONFIG_CAVIUM_OCTEON_SOC)	+= 0xffffffff81100000
-endif

arch/mips/cavium-octeon/setup.c

@@ -374,14 +374,8 @@ void octeon_write_lcd(const char *s)
  */
 int octeon_get_boot_uart(void)
 {
-	int uart;
-#ifdef CONFIG_CAVIUM_OCTEON_2ND_KERNEL
-	uart = 1;
-#else
-	uart = (octeon_boot_desc_ptr->flags & OCTEON_BL_FLAG_CONSOLE_UART1) ?
+	return (octeon_boot_desc_ptr->flags & OCTEON_BL_FLAG_CONSOLE_UART1) ?
 		1 : 0;
-#endif
-	return uart;
 }
 
 /**
@@ -901,14 +895,10 @@ void __init prom_init(void)
 	}
 
 	if (strstr(arcs_cmdline, "console=") == NULL) {
-#ifdef CONFIG_CAVIUM_OCTEON_2ND_KERNEL
-		strcat(arcs_cmdline, " console=ttyS0,115200");
-#else
 		if (octeon_uart == 1)
 			strcat(arcs_cmdline, " console=ttyS1,115200");
 		else
 			strcat(arcs_cmdline, " console=ttyS0,115200");
-#endif
 	}
 
 	mips_hpt_frequency = octeon_get_clock_rate();