CRIS: Drop support for the CRIS port

The port was added back in 2000 so it's no longer even a good source
of inspiration for newer ports (if it ever was)

The last SoC (ARTPEC-3) with a CRIS main CPU was launched in 2008.

Coupled with time and working developer board hardware being
in low supply, it's time to drop the port from Linux.

So long and thanks for all the fish!

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 214 deletions

diff --git a/arch/cris/kernel/setup.c b/arch/cris/kernel/setup.c
deleted file mode 100644
index 1b61a7207afb..000000000000
--- a/arch/cris/kernel/setup.c
+++ /dev/null
@@ -1,214 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *
- *  linux/arch/cris/kernel/setup.c
- *
- *  Copyright (C) 1995  Linus Torvalds
- *  Copyright (c) 2001  Axis Communications AB
- */
-
-/*
- * This file handles the architecture-dependent parts of initialization
- */
-
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <asm/pgtable.h>
-#include <linux/seq_file.h>
-#include <linux/screen_info.h>
-#include <linux/utsname.h>
-#include <linux/pfn.h>
-#include <linux/cpu.h>
-#include <linux/of.h>
-#include <linux/of_fdt.h>
-#include <asm/setup.h>
-#include <arch/system.h>
-#include <asm/sections.h>
-
-/*
- * Setup options
- */
-struct screen_info screen_info;
-
-extern int root_mountflags;
-
-char __initdata cris_command_line[COMMAND_LINE_SIZE] = { 0, };
-
-extern const unsigned long text_start, edata; /* set by the linker script */
-extern unsigned long dram_start, dram_end;
-
-extern unsigned long romfs_start, romfs_length, romfs_in_flash; /* from head.S */
-
-static struct cpu cpu_devices[NR_CPUS];
-
-extern void show_etrax_copyright(void);		/* arch-vX/kernel/setup.c */
-
-/* This mainly sets up the memory area, and can be really confusing.
- *
- * The physical DRAM is virtually mapped into dram_start to dram_end
- * (usually c0000000 to c0000000 + DRAM size). The physical address is
- * given by the macro __pa().
- *
- * In this DRAM, the kernel code and data is loaded, in the beginning.
- * It really starts at c0004000 to make room for some special pages -
- * the start address is text_start. The kernel data ends at _end. After
- * this the ROM filesystem is appended (if there is any).
- *
- * Between this address and dram_end, we have RAM pages usable to the
- * boot code and the system.
- *
- */
-
-void __init setup_arch(char **cmdline_p)
-{
-	extern void init_etrax_debug(void);
-	unsigned long bootmap_size;
-	unsigned long start_pfn, max_pfn;
-	unsigned long memory_start;
-
-#ifdef CONFIG_OF
-	early_init_dt_scan(__dtb_start);
-#endif
-
-	/* register an initial console printing routine for printk's */
-
-	init_etrax_debug();
-
-	/* we should really poll for DRAM size! */
-
-	high_memory = &dram_end;
-
-	if(romfs_in_flash || !romfs_length) {
-		/* if we have the romfs in flash, or if there is no rom filesystem,
-		 * our free area starts directly after the BSS
-		 */
-		memory_start = (unsigned long) &_end;
-	} else {
-		/* otherwise the free area starts after the ROM filesystem */
-		printk("ROM fs in RAM, size %lu bytes\n", romfs_length);
-		memory_start = romfs_start + romfs_length;
-	}
-
-	/* process 1's initial memory region is the kernel code/data */
-
-	init_mm.start_code = (unsigned long) &text_start;
-	init_mm.end_code =   (unsigned long) &_etext;
-	init_mm.end_data =   (unsigned long) &_edata;
-	init_mm.brk =        (unsigned long) &_end;
-
-	/* min_low_pfn points to the start of DRAM, start_pfn points
-	 * to the first DRAM pages after the kernel, and max_low_pfn
-	 * to the end of DRAM.
-	 */
-
-        /*
-         * partially used pages are not usable - thus
-         * we are rounding upwards:
-         */
-
-        start_pfn = PFN_UP(memory_start);  /* usually c0000000 + kernel + romfs */
-	max_pfn =   PFN_DOWN((unsigned long)high_memory); /* usually c0000000 + dram size */
-
-        /*
-         * Initialize the boot-time allocator (start, end)
-	 *
-	 * We give it access to all our DRAM, but we could as well just have
-	 * given it a small slice. No point in doing that though, unless we
-	 * have non-contiguous memory and want the boot-stuff to be in, say,
-	 * the smallest area.
-	 *
-	 * It will put a bitmap of the allocated pages in the beginning
-	 * of the range we give it, but it won't mark the bitmaps pages
-	 * as reserved. We have to do that ourselves below.
-	 *
-	 * We need to use init_bootmem_node instead of init_bootmem
-	 * because our map starts at a quite high address (min_low_pfn).
-         */
-
-	max_low_pfn = max_pfn;
-	min_low_pfn = PAGE_OFFSET >> PAGE_SHIFT;
-
-	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
-					 min_low_pfn,
-					 max_low_pfn);
-
-	/* And free all memory not belonging to the kernel (addr, size) */
-
-	free_bootmem(PFN_PHYS(start_pfn), PFN_PHYS(max_pfn - start_pfn));
-
-        /*
-         * Reserve the bootmem bitmap itself as well. We do this in two
-         * steps (first step was init_bootmem()) because this catches
-         * the (very unlikely) case of us accidentally initializing the
-         * bootmem allocator with an invalid RAM area.
-	 *
-	 * Arguments are start, size
-         */
-
-	reserve_bootmem(PFN_PHYS(start_pfn), bootmap_size, BOOTMEM_DEFAULT);
-
-	unflatten_and_copy_device_tree();
-
-	/* paging_init() sets up the MMU and marks all pages as reserved */
-
-	paging_init();
-
-	*cmdline_p = cris_command_line;
-
-#ifdef CONFIG_ETRAX_CMDLINE
-        if (!strcmp(cris_command_line, "")) {
-		strlcpy(cris_command_line, CONFIG_ETRAX_CMDLINE, COMMAND_LINE_SIZE);
-		cris_command_line[COMMAND_LINE_SIZE - 1] = '\0';
-	}
-#endif
-
-	/* Save command line for future references. */
-	memcpy(boot_command_line, cris_command_line, COMMAND_LINE_SIZE);
-	boot_command_line[COMMAND_LINE_SIZE - 1] = '\0';
-
-	/* give credit for the CRIS port */
-	show_etrax_copyright();
-
-	/* Setup utsname */
-	strcpy(init_utsname()->machine, cris_machine_name);
-}
-
-#ifdef CONFIG_PROC_FS
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
-	return *pos < nr_cpu_ids ? (void *)(int)(*pos + 1) : NULL;
-}
-
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	++*pos;
-	return c_start(m, pos);
-}
-
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-
-extern int show_cpuinfo(struct seq_file *m, void *v);
-
-const struct seq_operations cpuinfo_op = {
-	.start = c_start,
-	.next  = c_next,
-	.stop  = c_stop,
-	.show  = show_cpuinfo,
-};
-#endif /* CONFIG_PROC_FS */
-
-static int __init topology_init(void)
-{
-	int i;
-
-	for_each_possible_cpu(i) {
-		 return register_cpu(&cpu_devices[i], i);
-	}
-
-	return 0;
-}
-
-subsys_initcall(topology_init);