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 (PLAT_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 /* TI816X serial ports */ 55 #define TI816X_UART1_BASE 0x48020000 56 #define TI816X_UART2_BASE 0x48022000 57 #define TI816X_UART3_BASE 0x48024000 58 59 /* External port on Zoom2/3 */ 60 #define ZOOM_UART_BASE 0x10000000 61 #define ZOOM_UART_VIRT 0xfa400000 62 63 #define OMAP_PORT_SHIFT 2 64 #define OMAP7XX_PORT_SHIFT 0 65 #define ZOOM_PORT_SHIFT 1 66 67 #define OMAP1510_BASE_BAUD (12000000/16) 68 #define OMAP16XX_BASE_BAUD (48000000/16) 69 #define OMAP24XX_BASE_BAUD (48000000/16) 70 71 /* 72 * DEBUG_LL port encoding stored into the UART1 scratchpad register by 73 * decomp_setup in uncompress.h 74 */ 75 #define OMAP1UART1 11 76 #define OMAP1UART2 12 77 #define OMAP1UART3 13 78 #define OMAP2UART1 21 79 #define OMAP2UART2 22 80 #define OMAP2UART3 23 81 #define OMAP3UART1 OMAP2UART1 82 #define OMAP3UART2 OMAP2UART2 83 #define OMAP3UART3 33 84 #define OMAP3UART4 34 /* Only on 36xx */ 85 #define OMAP4UART1 OMAP2UART1 86 #define OMAP4UART2 OMAP2UART2 87 #define OMAP4UART3 43 88 #define OMAP4UART4 44 89 #define TI816XUART1 81 90 #define TI816XUART2 82 91 #define TI816XUART3 83 92 #define ZOOM_UART 95 /* Only on zoom2/3 */ 93 94 /* This is only used by 8250.c for omap1510 */ 95 #define is_omap_port(pt) ({int __ret = 0; \ 96 if ((pt)->port.mapbase == OMAP1_UART1_BASE || \ 97 (pt)->port.mapbase == OMAP1_UART2_BASE || \ 98 (pt)->port.mapbase == OMAP1_UART3_BASE) \ 99 __ret = 1; \ 100 __ret; \ 101 }) 102 103 #ifndef __ASSEMBLER__ 104 105 struct omap_board_data; 106 107 extern void omap_serial_init(void); 108 extern void omap_serial_init_port(struct omap_board_data *bdata); 109 extern int omap_uart_can_sleep(void); 110 extern void omap_uart_check_wakeup(void); 111 extern void omap_uart_prepare_suspend(void); 112 extern void omap_uart_prepare_idle(int num); 113 extern void omap_uart_resume_idle(int num); 114 extern void omap_uart_enable_irqs(int enable); 115 #endif 116 117 #endif 118