u-boot-brain/arch/arm/mach-bcm283x/init.c
Matthias Brugger dd47ca7873 ARM: bcm283x: Set rpi_bcm283x_base at run-time
As part of the effort to create one binary for several bcm83x SoCs
we read the IO base address from device-tree.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-11-24 10:46:27 +01:00

48 lines
769 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* (C) Copyright 2012 Stephen Warren
*
* See file CREDITS for list of people who contributed to this
* project.
*/
#include <common.h>
#include <dm/device.h>
#include <fdt_support.h>
unsigned long rpi_bcm283x_base = 0x3f000000;
int arch_cpu_init(void)
{
icache_enable();
return 0;
}
int mach_cpu_init(void)
{
int ret, soc_offset;
u64 io_base, size;
/* Get IO base from device tree */
soc_offset = fdt_path_offset(gd->fdt_blob, "/soc");
if (soc_offset < 0)
return soc_offset;
ret = fdt_read_range((void *)gd->fdt_blob, soc_offset, 0, NULL,
&io_base, &size);
if (ret)
return ret;
rpi_bcm283x_base = io_base;
return 0;
}
#ifdef CONFIG_ARMV7_LPAE
void enable_caches(void)
{
dcache_enable();
}
#endif