1/* 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> 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 16#include <linux/init.h> 17 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 32/* OMAP1 serial ports */ 33#define OMAP1_UART1_BASE 0xfffb0000 34#define OMAP1_UART2_BASE 0xfffb0800 35#define OMAP1_UART3_BASE 0xfffb9800 36 37/* OMAP2 serial ports */ 38#define OMAP2_UART1_BASE 0x4806a000 39#define OMAP2_UART2_BASE 0x4806c000 40#define OMAP2_UART3_BASE 0x4806e000 41 42/* OMAP3 serial ports */ 43#define OMAP3_UART1_BASE OMAP2_UART1_BASE 44#define OMAP3_UART2_BASE OMAP2_UART2_BASE 45#define OMAP3_UART3_BASE 0x49020000 46#define OMAP3_UART4_BASE 0x49042000 /* Only on 36xx */ 47 48/* OMAP4 serial ports */ 49#define OMAP4_UART1_BASE OMAP2_UART1_BASE 50#define OMAP4_UART2_BASE OMAP2_UART2_BASE 51#define OMAP4_UART3_BASE 0x48020000 52#define OMAP4_UART4_BASE 0x4806e000 53 54/* External port on Zoom2/3 */ 55#define ZOOM_UART_BASE 0x10000000 56#define ZOOM_UART_VIRT 0xfa400000 57 58#define OMAP_PORT_SHIFT 2 59#define OMAP7XX_PORT_SHIFT 0 60#define ZOOM_PORT_SHIFT 1 61 62#define OMAP1510_BASE_BAUD (12000000/16) 63#define OMAP16XX_BASE_BAUD (48000000/16) 64#define OMAP24XX_BASE_BAUD (48000000/16) 65 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 86/* This is only used by 8250.c for omap1510 */ 87#define is_omap_port(pt) ({int __ret = 0; \ 88 if ((pt)->port.mapbase == OMAP1_UART1_BASE || \ 89 (pt)->port.mapbase == OMAP1_UART2_BASE || \ 90 (pt)->port.mapbase == OMAP1_UART3_BASE) \ 91 __ret = 1; \ 92 __ret; \ 93 }) 94 95#ifndef __ASSEMBLER__ 96extern void __init omap_serial_early_init(void); 97extern void omap_serial_init(void); 98extern void omap_serial_init_port(int port); 99extern int omap_uart_can_sleep(void); 100extern void omap_uart_check_wakeup(void); 101extern void omap_uart_prepare_suspend(void); 102extern void omap_uart_prepare_idle(int num); 103extern void omap_uart_resume_idle(int num); 104extern void omap_uart_enable_irqs(int enable); 105#endif 106 107#endif 108