2 * Copyright (C) 2009 Texas Instruments
3 * Added OMAP4 support- Santosh Shilimkar <santosh.shilimkar@ti.com>
5 * This program is distributed in the hope that it will be useful,
6 * but WITHOUT ANY WARRANTY; without even the implied warranty of
7 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
8 * GNU General Public License for more details.
11 #ifndef __ASM_ARCH_SERIAL_H
12 #define __ASM_ARCH_SERIAL_H
14 #include <linux/init.h>
17 * Memory entry used for the DEBUG_LL UART configuration, relative to
18 * start of RAM. See also uncompress.h and debug-macro.S.
20 * Note that using a memory location for storing the UART configuration
21 * has at least two limitations:
23 * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the
24 * uncompress code could then partially overwrite itself
25 * 2. We assume printascii is called at least once before paging_init,
26 * and addruart has a chance to read OMAP_UART_INFO
28 #define OMAP_UART_INFO_OFS 0x3ffc
30 #define OMAP_PORT_SHIFT 2
31 #define OMAP7XX_PORT_SHIFT 0
33 #define OMAP1510_BASE_BAUD (12000000/16)
34 #define OMAP16XX_BASE_BAUD (48000000/16)
37 * DEBUG_LL port encoding stored into the UART1 scratchpad register by
38 * decomp_setup in uncompress.h
45 extern void omap_serial_init(void);