1/* 2 * include/asm-ppc/serial.h 3 */ 4 5#include <linux/config.h> 6 7/* 8 * This assumes you have a 1.8432 MHz clock for your UART. 9 * 10 * It'd be nice if someone built a serial card with a 24.576 MHz 11 * clock, since the 16550A is capable of handling a top speed of 1.5 12 * megabits/second; but this requires the faster clock. 13 * 14 * This program is free software; you can redistribute it and/or 15 * modify it under the terms of the GNU General Public License 16 * as published by the Free Software Foundation; either version 17 * 2 of the License, or (at your option) any later version. 18 */ 19#define BASE_BAUD ( 1843200 / 16 ) 20 21#ifdef CONFIG_SERIAL_MANY_PORTS 22#define RS_TABLE_SIZE 64 23#else 24#define RS_TABLE_SIZE 4 25#endif 26 27/* Standard COM flags (except for COM4, because of the 8514 problem) */ 28#ifdef CONFIG_SERIAL_DETECT_IRQ 29#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ) 30#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ) 31#else 32#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) 33#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF 34#endif 35 36#ifdef CONFIG_SERIAL_MANY_PORTS 37#define FOURPORT_FLAGS ASYNC_FOURPORT 38#define ACCENT_FLAGS 0 39#define BOCA_FLAGS 0 40#define HUB6_FLAGS 0 41#endif 42 43/* 44 * The following define the access methods for the HUB6 card. All 45 * access is through two ports for all 24 possible chips. The card is 46 * selected through the high 2 bits, the port on that card with the 47 * "middle" 3 bits, and the register on that port with the bottom 48 * 3 bits. 49 * 50 * While the access port and interrupt is configurable, the default 51 * port locations are 0x302 for the port control register, and 0x303 52 * for the data read/write register. Normally, the interrupt is at irq3 53 * but can be anything from 3 to 7 inclusive. Note that using 3 will 54 * require disabling com2. 55 */ 56 57#define C_P(card,port) (((card)<<6|(port)<<3) + 1) 58 59#define STD_SERIAL_PORT_DEFNS \ 60 /* UART CLK PORT IRQ FLAGS */ \ 61 { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \ 62 { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \ 63 { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \ 64 { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */ 65 66 67#ifdef CONFIG_SERIAL_MANY_PORTS 68#define EXTRA_SERIAL_PORT_DEFNS \ 69 { 0, BASE_BAUD, 0x1A0, 9, FOURPORT_FLAGS }, /* ttyS4 */ \ 70 { 0, BASE_BAUD, 0x1A8, 9, FOURPORT_FLAGS }, /* ttyS5 */ \ 71 { 0, BASE_BAUD, 0x1B0, 9, FOURPORT_FLAGS }, /* ttyS6 */ \ 72 { 0, BASE_BAUD, 0x1B8, 9, FOURPORT_FLAGS }, /* ttyS7 */ \ 73 { 0, BASE_BAUD, 0x2A0, 5, FOURPORT_FLAGS }, /* ttyS8 */ \ 74 { 0, BASE_BAUD, 0x2A8, 5, FOURPORT_FLAGS }, /* ttyS9 */ \ 75 { 0, BASE_BAUD, 0x2B0, 5, FOURPORT_FLAGS }, /* ttyS10 */ \ 76 { 0, BASE_BAUD, 0x2B8, 5, FOURPORT_FLAGS }, /* ttyS11 */ \ 77 { 0, BASE_BAUD, 0x330, 4, ACCENT_FLAGS }, /* ttyS12 */ \ 78 { 0, BASE_BAUD, 0x338, 4, ACCENT_FLAGS }, /* ttyS13 */ \ 79 { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS14 (spare) */ \ 80 { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS15 (spare) */ \ 81 { 0, BASE_BAUD, 0x100, 12, BOCA_FLAGS }, /* ttyS16 */ \ 82 { 0, BASE_BAUD, 0x108, 12, BOCA_FLAGS }, /* ttyS17 */ \ 83 { 0, BASE_BAUD, 0x110, 12, BOCA_FLAGS }, /* ttyS18 */ \ 84 { 0, BASE_BAUD, 0x118, 12, BOCA_FLAGS }, /* ttyS19 */ \ 85 { 0, BASE_BAUD, 0x120, 12, BOCA_FLAGS }, /* ttyS20 */ \ 86 { 0, BASE_BAUD, 0x128, 12, BOCA_FLAGS }, /* ttyS21 */ \ 87 { 0, BASE_BAUD, 0x130, 12, BOCA_FLAGS }, /* ttyS22 */ \ 88 { 0, BASE_BAUD, 0x138, 12, BOCA_FLAGS }, /* ttyS23 */ \ 89 { 0, BASE_BAUD, 0x140, 12, BOCA_FLAGS }, /* ttyS24 */ \ 90 { 0, BASE_BAUD, 0x148, 12, BOCA_FLAGS }, /* ttyS25 */ \ 91 { 0, BASE_BAUD, 0x150, 12, BOCA_FLAGS }, /* ttyS26 */ \ 92 { 0, BASE_BAUD, 0x158, 12, BOCA_FLAGS }, /* ttyS27 */ \ 93 { 0, BASE_BAUD, 0x160, 12, BOCA_FLAGS }, /* ttyS28 */ \ 94 { 0, BASE_BAUD, 0x168, 12, BOCA_FLAGS }, /* ttyS29 */ \ 95 { 0, BASE_BAUD, 0x170, 12, BOCA_FLAGS }, /* ttyS30 */ \ 96 { 0, BASE_BAUD, 0x178, 12, BOCA_FLAGS }, /* ttyS31 */ 97#else 98#define EXTRA_SERIAL_PORT_DEFNS 99#endif 100 101/* You can have up to four HUB6's in the system, but I've only 102 * included two cards here for a total of twelve ports. 103 */ 104#if (defined(CONFIG_HUB6) && defined(CONFIG_SERIAL_MANY_PORTS)) 105#define HUB6_SERIAL_PORT_DFNS \ 106 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,0) }, /* ttyS32 */ \ 107 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,1) }, /* ttyS33 */ \ 108 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,2) }, /* ttyS34 */ \ 109 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,3) }, /* ttyS35 */ \ 110 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,4) }, /* ttyS36 */ \ 111 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,5) }, /* ttyS37 */ \ 112 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,0) }, /* ttyS38 */ \ 113 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,1) }, /* ttyS39 */ \ 114 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,2) }, /* ttyS40 */ \ 115 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,3) }, /* ttyS41 */ \ 116 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,4) }, /* ttyS42 */ \ 117 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,5) }, /* ttyS43 */ 118#else 119#define HUB6_SERIAL_PORT_DFNS 120#endif 121 122#define MCA_SERIAL_PORT_DFNS 123 124#define SERIAL_PORT_DFNS \ 125 STD_SERIAL_PORT_DEFNS \ 126 EXTRA_SERIAL_PORT_DEFNS \ 127 HUB6_SERIAL_PORT_DFNS \ 128 MCA_SERIAL_PORT_DFNS 129