1/*
2 * rbtx4939 specific prom routines
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License.  See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#include <linux/init.h>
10#include <linux/memblock.h>
11#include <asm/txx9/generic.h>
12#include <asm/txx9/rbtx4939.h>
13
14void __init rbtx4939_prom_init(void)
15{
16	unsigned long start, size;
17	u64 win;
18	int i;
19
20	for (i = 0; i < 4; i++) {
21		if (!((__u32)____raw_readq(&tx4939_ddrcptr->winen) & (1 << i)))
22			continue;
23		win = ____raw_readq(&tx4939_ddrcptr->win[i]);
24		start = (unsigned long)(win >> 48);
25		size = (((unsigned long)(win >> 32) & 0xffff) + 1) - start;
26		memblock_add(start << 20, size << 20);
27	}
28	txx9_sio_putchar_init(TX4939_SIO_REG(0) & 0xfffffffffULL);
29}
30