1 /* 2 * arch/arm/plat-omap/include/mach/serial.h 3 * 4 * Copyright (C) 2009 Texas Instruments 5 * Added 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, relative to 20 * start of RAM. See also 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_OFS 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 #define OMAP3_UART4_AM35XX_BASE 0x4809E000 /* Only on AM35xx */ 48 49 /* OMAP4 serial ports */ 50 #define OMAP4_UART1_BASE OMAP2_UART1_BASE 51 #define OMAP4_UART2_BASE OMAP2_UART2_BASE 52 #define OMAP4_UART3_BASE 0x48020000 53 #define OMAP4_UART4_BASE 0x4806e000 54 55 /* TI81XX serial ports */ 56 #define TI81XX_UART1_BASE 0x48020000 57 #define TI81XX_UART2_BASE 0x48022000 58 #define TI81XX_UART3_BASE 0x48024000 59 60 /* AM3505/3517 UART4 */ 61 #define AM35XX_UART4_BASE 0x4809E000 /* Only on AM3505/3517 */ 62 63 /* External port on Zoom2/3 */ 64 #define ZOOM_UART_BASE 0x10000000 65 #define ZOOM_UART_VIRT 0xfa400000 66 67 #define OMAP_PORT_SHIFT 2 68 #define OMAP7XX_PORT_SHIFT 0 69 #define ZOOM_PORT_SHIFT 1 70 71 #define OMAP1510_BASE_BAUD (12000000/16) 72 #define OMAP16XX_BASE_BAUD (48000000/16) 73 #define OMAP24XX_BASE_BAUD (48000000/16) 74 75 /* 76 * DEBUG_LL port encoding stored into the UART1 scratchpad register by 77 * decomp_setup in uncompress.h 78 */ 79 #define OMAP1UART1 11 80 #define OMAP1UART2 12 81 #define OMAP1UART3 13 82 #define OMAP2UART1 21 83 #define OMAP2UART2 22 84 #define OMAP2UART3 23 85 #define OMAP3UART1 OMAP2UART1 86 #define OMAP3UART2 OMAP2UART2 87 #define OMAP3UART3 33 88 #define OMAP3UART4 34 /* Only on 36xx */ 89 #define OMAP4UART1 OMAP2UART1 90 #define OMAP4UART2 OMAP2UART2 91 #define OMAP4UART3 43 92 #define OMAP4UART4 44 93 #define TI81XXUART1 81 94 #define TI81XXUART2 82 95 #define TI81XXUART3 83 96 #define ZOOM_UART 95 /* Only on zoom2/3 */ 97 98 /* This is only used by 8250.c for omap1510 */ 99 #define is_omap_port(pt) ({int __ret = 0; \ 100 if ((pt)->port.mapbase == OMAP1_UART1_BASE || \ 101 (pt)->port.mapbase == OMAP1_UART2_BASE || \ 102 (pt)->port.mapbase == OMAP1_UART3_BASE) \ 103 __ret = 1; \ 104 __ret; \ 105 }) 106 107 #ifndef __ASSEMBLER__ 108 109 struct omap_board_data; 110 struct omap_uart_port_info; 111 112 extern void omap_serial_init(void); 113 extern void omap_serial_board_init(struct omap_uart_port_info *platform_data); 114 extern void omap_serial_init_port(struct omap_board_data *bdata, 115 struct omap_uart_port_info *platform_data); 116 #endif 117 118 #endif 119