tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * arch/ppc/boot/simple/misc-chestnut.c
3 *
4 * Setup for the IBM Chestnut (ibm-750fxgx_eval)
5 *
6 * Author: Mark A. Greer <mgreer@mvista.com>
7 *
8 * 2005 (c) MontaVista Software, Inc. This file is licensed under
9 * the terms of the GNU General Public License version 2. This program
10 * is licensed "as is" without any warranty of any kind, whether express
11 * or implied.
12 */
13
14#include <linux/config.h>
15#include <linux/types.h>
16#include <asm/io.h>
17#include <asm/mv64x60_defs.h>
18#include <platforms/chestnut.h>
19
20/* Not in the kernel so won't include kernel.h to get its 'max' definition */
21#define max(a,b) (((a) > (b)) ? (a) : (b))
22
23void
24mv64x60_board_init(void __iomem *old_base, void __iomem *new_base)
25{
26#ifdef CONFIG_SERIAL_8250_CONSOLE
27 /*
28 * Change device bus 2 window so that bootoader can do I/O thru
29 * 8250/16550 UART that's mapped in that window.
30 */
31 out_le32(new_base + MV64x60_CPU2DEV_2_BASE, CHESTNUT_UART_BASE >> 16);
32 out_le32(new_base + MV64x60_CPU2DEV_2_SIZE, CHESTNUT_UART_SIZE >> 16);
33 __asm__ __volatile__("sync");
34#endif
35}