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/*
* Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
*
* GPLv2 only
*/
#include <common.h>
#include <init.h>
#include <asm/armlinux.h>
#include <asm/system_info.h>
#include <asm/mach-types.h>
#include <mach/vexpress/devices.h>
#include <environment.h>
#include <linux/sizes.h>
#include <io.h>
#include <envfs.h>
#include <globalvar.h>
#include <linux/amba/sp804.h>
#define V2M_SYS_FLASH 0x03c
static int of_fixup_virtio_mmio(struct device_node *root, void *unused)
{
struct device_node *barebox_root, *np, *parent;
barebox_root = of_get_root_node();
if (root == barebox_root)
return 0;
for_each_compatible_node_from(np, barebox_root, NULL, "virtio,mmio") {
if (of_get_parent(np) == barebox_root)
parent = root;
else
parent = of_find_node_by_path_from(root,
of_get_parent(np)->full_name);
if (!parent)
return -EINVAL;
of_copy_node(parent, np);
}
return 0;
}
static int vexpress_probe(struct device *dev)
{
char *hostname = "vexpress-unknown";
int ret = 0;
if (amba_is_arm_sp804(IOMEM(0x10011000))) {
vexpress_a9_legacy_init();
hostname = "vexpress-a9-legacy";
} else {
vexpress_init();
if (cpu_is_cortex_a5())
hostname = "vexpress-a5";
else if (cpu_is_cortex_a7())
hostname = "vexpress-a7";
else if (cpu_is_cortex_a9())
hostname = "vexpress-a9";
else if (cpu_is_cortex_a15())
hostname = "vexpress-a15";
}
writel(1, v2m_sysreg_base + V2M_SYS_FLASH);
barebox_set_hostname(hostname);
ret = of_register_fixup(of_fixup_virtio_mmio, NULL);
return ret;
}
static const struct of_device_id vexpress_of_match[] = {
{ .compatible = "arm,vexpress,v2p-ca9" },
{ .compatible = "arm,vexpress,v2p-ca15" },
{ .compatible = "arm,vexpress" },
{ /* Sentinel */},
};
MODULE_DEVICE_TABLE(of, vexpress_of_match);
static struct driver vexpress_board_driver = {
.name = "board-vexpress",
.probe = vexpress_probe,
.of_compatible = vexpress_of_match,
};
postcore_platform_driver(vexpress_board_driver);
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