b01da9f130
This code is not common enough to be in a shared file. It is also not
used by any existing boards, so just remove it.
[ralf@linux-mips.org: Dropped removal of irq_create_of_mapping which was
already removed by abd2363f6a
[irq_domain/mips: Allow irq_domain on MIPS]. Moved device_tree_init() and
dependencies to its sole user, the XLP code.]
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: grant.likely@secretlab.ca
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2946/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
81 lines
2 KiB
C
81 lines
2 KiB
C
/*
|
|
* MIPS support for CONFIG_OF device tree support
|
|
*
|
|
* Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/export.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/types.h>
|
|
#include <linux/bootmem.h>
|
|
#include <linux/initrd.h>
|
|
#include <linux/debugfs.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_fdt.h>
|
|
#include <linux/of_irq.h>
|
|
#include <linux/of_platform.h>
|
|
|
|
#include <asm/page.h>
|
|
#include <asm/prom.h>
|
|
|
|
int __init early_init_dt_scan_memory_arch(unsigned long node,
|
|
const char *uname, int depth,
|
|
void *data)
|
|
{
|
|
return early_init_dt_scan_memory(node, uname, depth, data);
|
|
}
|
|
|
|
void __init early_init_dt_add_memory_arch(u64 base, u64 size)
|
|
{
|
|
return add_memory_region(base, size, BOOT_MEM_RAM);
|
|
}
|
|
|
|
void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
|
|
{
|
|
return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
|
|
}
|
|
|
|
#ifdef CONFIG_BLK_DEV_INITRD
|
|
void __init early_init_dt_setup_initrd_arch(unsigned long start,
|
|
unsigned long end)
|
|
{
|
|
initrd_start = (unsigned long)__va(start);
|
|
initrd_end = (unsigned long)__va(end);
|
|
initrd_below_start_ok = 1;
|
|
}
|
|
#endif
|
|
|
|
void __init early_init_devtree(void *params)
|
|
{
|
|
/* Setup flat device-tree pointer */
|
|
initial_boot_params = params;
|
|
|
|
/* Retrieve various informations from the /chosen node of the
|
|
* device-tree, including the platform type, initrd location and
|
|
* size, and more ...
|
|
*/
|
|
of_scan_flat_dt(early_init_dt_scan_chosen, arcs_cmdline);
|
|
|
|
|
|
/* Scan memory nodes */
|
|
of_scan_flat_dt(early_init_dt_scan_root, NULL);
|
|
of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
|
|
}
|
|
|
|
void __init __dt_setup_arch(struct boot_param_header *bph)
|
|
{
|
|
if (be32_to_cpu(bph->magic) != OF_DT_HEADER) {
|
|
pr_err("DTB has bad magic, ignoring builtin OF DTB\n");
|
|
|
|
return;
|
|
}
|
|
|
|
initial_boot_params = bph;
|
|
|
|
early_init_devtree(initial_boot_params);
|
|
}
|