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Russell Kinga09e64f2008-08-05 16:14:15 +01001/*
Santosh Shilimkar44169072009-05-28 14:16:04 -07002 * arch/arm/plat-omap/include/mach/serial.h
3 *
4 * Copyright (C) 2009 Texas Instruments
5 * Addded OMAP4 support- Santosh Shilimkar <santosh.shilimkar@ti.com>
Russell Kinga09e64f2008-08-05 16:14:15 +01006 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 */
12
13#ifndef __ASM_ARCH_SERIAL_H
14#define __ASM_ARCH_SERIAL_H
15
Paul Walmsleyb3c6df32009-09-03 20:14:02 +030016#include <linux/init.h>
17
Tony Lindgren96554d72010-04-30 17:39:19 -070018/*
19 * Memory entry used for the DEBUG_LL UART configuration. See also
20 * uncompress.h and debug-macro.S.
21 *
22 * Note that using a memory location for storing the UART configuration
23 * has at least two limitations:
24 *
25 * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the
26 * uncompress code could then partially overwrite itself
27 * 2. We assume printascii is called at least once before paging_init,
28 * and addruart has a chance to read OMAP_UART_INFO
29 */
30#define OMAP_UART_INFO (PHYS_OFFSET + 0x3ffc)
31
Russell Kinga09e64f2008-08-05 16:14:15 +010032/* OMAP1 serial ports */
Tony Lindgren4f2c49f2010-02-15 08:48:53 -080033#define OMAP1_UART1_BASE 0xfffb0000
34#define OMAP1_UART2_BASE 0xfffb0800
35#define OMAP1_UART3_BASE 0xfffb9800
36
Russell Kinga09e64f2008-08-05 16:14:15 +010037/* OMAP2 serial ports */
Tony Lindgren4f2c49f2010-02-15 08:48:53 -080038#define OMAP2_UART1_BASE 0x4806a000
39#define OMAP2_UART2_BASE 0x4806c000
40#define OMAP2_UART3_BASE 0x4806e000
41
Jouni Hogander6e811762008-10-06 15:49:15 +030042/* OMAP3 serial ports */
Tony Lindgren0c8219f2010-02-15 08:49:01 -080043#define OMAP3_UART1_BASE OMAP2_UART1_BASE
44#define OMAP3_UART2_BASE OMAP2_UART2_BASE
Tony Lindgren4f2c49f2010-02-15 08:48:53 -080045#define OMAP3_UART3_BASE 0x49020000
46#define OMAP3_UART4_BASE 0x49042000 /* Only on 36xx */
47
Santosh Shilimkar44169072009-05-28 14:16:04 -070048/* OMAP4 serial ports */
Tony Lindgren0c8219f2010-02-15 08:49:01 -080049#define OMAP4_UART1_BASE OMAP2_UART1_BASE
50#define OMAP4_UART2_BASE OMAP2_UART2_BASE
Tony Lindgren4f2c49f2010-02-15 08:48:53 -080051#define OMAP4_UART3_BASE 0x48020000
52#define OMAP4_UART4_BASE 0x4806e000
53
Tony Lindgren0c8219f2010-02-15 08:49:01 -080054/* External port on Zoom2/3 */
55#define ZOOM_UART_BASE 0x10000000
Tony Lindgrena4f57b82010-04-30 12:57:14 -070056#define ZOOM_UART_VIRT 0xfa400000
Tony Lindgren0c8219f2010-02-15 08:49:01 -080057
Tony Lindgren4f2c49f2010-02-15 08:48:53 -080058#define OMAP_PORT_SHIFT 2
59#define OMAP7XX_PORT_SHIFT 0
Tony Lindgren0c8219f2010-02-15 08:49:01 -080060#define ZOOM_PORT_SHIFT 1
Russell Kinga09e64f2008-08-05 16:14:15 +010061
Russell Kinga09e64f2008-08-05 16:14:15 +010062#define OMAP1510_BASE_BAUD (12000000/16)
63#define OMAP16XX_BASE_BAUD (48000000/16)
Jouni Hogander6e811762008-10-06 15:49:15 +030064#define OMAP24XX_BASE_BAUD (48000000/16)
Russell Kinga09e64f2008-08-05 16:14:15 +010065
Tony Lindgren0c8219f2010-02-15 08:49:01 -080066/*
67 * DEBUG_LL port encoding stored into the UART1 scratchpad register by
68 * decomp_setup in uncompress.h
69 */
70#define OMAP1UART1 11
71#define OMAP1UART2 12
72#define OMAP1UART3 13
73#define OMAP2UART1 21
74#define OMAP2UART2 22
75#define OMAP2UART3 23
76#define OMAP3UART1 OMAP2UART1
77#define OMAP3UART2 OMAP2UART2
78#define OMAP3UART3 33
79#define OMAP3UART4 34 /* Only on 36xx */
80#define OMAP4UART1 OMAP2UART1
81#define OMAP4UART2 OMAP2UART2
82#define OMAP4UART3 43
83#define OMAP4UART4 44
84#define ZOOM_UART 95 /* Only on zoom2/3 */
85
Tony Lindgren4f2c49f2010-02-15 08:48:53 -080086/* This is only used by 8250.c for omap1510 */
Russell King56685452008-09-01 21:25:33 +010087#define is_omap_port(pt) ({int __ret = 0; \
Tony Lindgren4f2c49f2010-02-15 08:48:53 -080088 if ((pt)->port.mapbase == OMAP1_UART1_BASE || \
89 (pt)->port.mapbase == OMAP1_UART2_BASE || \
90 (pt)->port.mapbase == OMAP1_UART3_BASE) \
Russell King56685452008-09-01 21:25:33 +010091 __ret = 1; \
92 __ret; \
Russell Kinga09e64f2008-08-05 16:14:15 +010093 })
94
Kevin Hilman4af40162009-02-04 10:51:40 -080095#ifndef __ASSEMBLER__
Tony Lindgren40e44392010-12-22 18:42:35 -080096
97struct omap_board_data;
98
Kevin Hilman4af40162009-02-04 10:51:40 -080099extern void omap_serial_init(void);
Tony Lindgren40e44392010-12-22 18:42:35 -0800100extern void omap_serial_init_port(struct omap_board_data *bdata);
Kevin Hilman4af40162009-02-04 10:51:40 -0800101extern int omap_uart_can_sleep(void);
102extern void omap_uart_check_wakeup(void);
103extern void omap_uart_prepare_suspend(void);
104extern void omap_uart_prepare_idle(int num);
105extern void omap_uart_resume_idle(int num);
Tero Kristo24662112009-03-05 16:32:23 +0200106extern void omap_uart_enable_irqs(int enable);
Kevin Hilman4af40162009-02-04 10:51:40 -0800107#endif
108
Russell Kinga09e64f2008-08-05 16:14:15 +0100109#endif