Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 1 | /* |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 2 | * 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 King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 6 | * |
| 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 Walmsley | b3c6df3 | 2009-09-03 20:14:02 +0300 | [diff] [blame] | 16 | #include <linux/init.h> |
| 17 | |
Tony Lindgren | 96554d7 | 2010-04-30 17:39:19 -0700 | [diff] [blame] | 18 | /* |
| 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 King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 32 | /* OMAP1 serial ports */ |
Tony Lindgren | 4f2c49f | 2010-02-15 08:48:53 -0800 | [diff] [blame] | 33 | #define OMAP1_UART1_BASE 0xfffb0000 |
| 34 | #define OMAP1_UART2_BASE 0xfffb0800 |
| 35 | #define OMAP1_UART3_BASE 0xfffb9800 |
| 36 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 37 | /* OMAP2 serial ports */ |
Tony Lindgren | 4f2c49f | 2010-02-15 08:48:53 -0800 | [diff] [blame] | 38 | #define OMAP2_UART1_BASE 0x4806a000 |
| 39 | #define OMAP2_UART2_BASE 0x4806c000 |
| 40 | #define OMAP2_UART3_BASE 0x4806e000 |
| 41 | |
Jouni Hogander | 6e81176 | 2008-10-06 15:49:15 +0300 | [diff] [blame] | 42 | /* OMAP3 serial ports */ |
Tony Lindgren | 0c8219f | 2010-02-15 08:49:01 -0800 | [diff] [blame] | 43 | #define OMAP3_UART1_BASE OMAP2_UART1_BASE |
| 44 | #define OMAP3_UART2_BASE OMAP2_UART2_BASE |
Tony Lindgren | 4f2c49f | 2010-02-15 08:48:53 -0800 | [diff] [blame] | 45 | #define OMAP3_UART3_BASE 0x49020000 |
| 46 | #define OMAP3_UART4_BASE 0x49042000 /* Only on 36xx */ |
| 47 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 48 | /* OMAP4 serial ports */ |
Tony Lindgren | 0c8219f | 2010-02-15 08:49:01 -0800 | [diff] [blame] | 49 | #define OMAP4_UART1_BASE OMAP2_UART1_BASE |
| 50 | #define OMAP4_UART2_BASE OMAP2_UART2_BASE |
Tony Lindgren | 4f2c49f | 2010-02-15 08:48:53 -0800 | [diff] [blame] | 51 | #define OMAP4_UART3_BASE 0x48020000 |
| 52 | #define OMAP4_UART4_BASE 0x4806e000 |
| 53 | |
Tony Lindgren | 0c8219f | 2010-02-15 08:49:01 -0800 | [diff] [blame] | 54 | /* External port on Zoom2/3 */ |
| 55 | #define ZOOM_UART_BASE 0x10000000 |
Tony Lindgren | a4f57b8 | 2010-04-30 12:57:14 -0700 | [diff] [blame] | 56 | #define ZOOM_UART_VIRT 0xfa400000 |
Tony Lindgren | 0c8219f | 2010-02-15 08:49:01 -0800 | [diff] [blame] | 57 | |
Tony Lindgren | 4f2c49f | 2010-02-15 08:48:53 -0800 | [diff] [blame] | 58 | #define OMAP_PORT_SHIFT 2 |
| 59 | #define OMAP7XX_PORT_SHIFT 0 |
Tony Lindgren | 0c8219f | 2010-02-15 08:49:01 -0800 | [diff] [blame] | 60 | #define ZOOM_PORT_SHIFT 1 |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 61 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 62 | #define OMAP1510_BASE_BAUD (12000000/16) |
| 63 | #define OMAP16XX_BASE_BAUD (48000000/16) |
Jouni Hogander | 6e81176 | 2008-10-06 15:49:15 +0300 | [diff] [blame] | 64 | #define OMAP24XX_BASE_BAUD (48000000/16) |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 65 | |
Tony Lindgren | 0c8219f | 2010-02-15 08:49:01 -0800 | [diff] [blame] | 66 | /* |
| 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 Lindgren | 4f2c49f | 2010-02-15 08:48:53 -0800 | [diff] [blame] | 86 | /* This is only used by 8250.c for omap1510 */ |
Russell King | 5668545 | 2008-09-01 21:25:33 +0100 | [diff] [blame] | 87 | #define is_omap_port(pt) ({int __ret = 0; \ |
Tony Lindgren | 4f2c49f | 2010-02-15 08:48:53 -0800 | [diff] [blame] | 88 | if ((pt)->port.mapbase == OMAP1_UART1_BASE || \ |
| 89 | (pt)->port.mapbase == OMAP1_UART2_BASE || \ |
| 90 | (pt)->port.mapbase == OMAP1_UART3_BASE) \ |
Russell King | 5668545 | 2008-09-01 21:25:33 +0100 | [diff] [blame] | 91 | __ret = 1; \ |
| 92 | __ret; \ |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 93 | }) |
| 94 | |
Kevin Hilman | 4af4016 | 2009-02-04 10:51:40 -0800 | [diff] [blame] | 95 | #ifndef __ASSEMBLER__ |
Tony Lindgren | 40e4439 | 2010-12-22 18:42:35 -0800 | [diff] [blame] | 96 | |
| 97 | struct omap_board_data; |
| 98 | |
Kevin Hilman | 4af4016 | 2009-02-04 10:51:40 -0800 | [diff] [blame] | 99 | extern void omap_serial_init(void); |
Tony Lindgren | 40e4439 | 2010-12-22 18:42:35 -0800 | [diff] [blame] | 100 | extern void omap_serial_init_port(struct omap_board_data *bdata); |
Kevin Hilman | 4af4016 | 2009-02-04 10:51:40 -0800 | [diff] [blame] | 101 | extern int omap_uart_can_sleep(void); |
| 102 | extern void omap_uart_check_wakeup(void); |
| 103 | extern void omap_uart_prepare_suspend(void); |
| 104 | extern void omap_uart_prepare_idle(int num); |
| 105 | extern void omap_uart_resume_idle(int num); |
Tero Kristo | 2466211 | 2009-03-05 16:32:23 +0200 | [diff] [blame] | 106 | extern void omap_uart_enable_irqs(int enable); |
Kevin Hilman | 4af4016 | 2009-02-04 10:51:40 -0800 | [diff] [blame] | 107 | #endif |
| 108 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 109 | #endif |