1 /* 2 * include/asm-ppc/pc_serial.h 3 * 4 * This is basically a copy of include/asm-i386/serial.h. 5 * It is used on platforms which have an ISA bus and thus are likely 6 * to have PC-style serial ports at the legacy I/O port addresses. 7 * It also includes the definitions for the fourport, accent, boca 8 * and hub6 multiport serial cards, although I have never heard of 9 * anyone using any of those on a PPC platform. -- paulus 10 */ 11 12 #include <linux/config.h> 13 14 /* 15 * This assumes you have a 1.8432 MHz clock for your UART. 16 * 17 * It'd be nice if someone built a serial card with a 24.576 MHz 18 * clock, since the 16550A is capable of handling a top speed of 1.5 19 * megabits/second; but this requires the faster clock. 20 */ 21 #define BASE_BAUD ( 1843200 / 16 ) 22 23 #ifdef CONFIG_SERIAL_MANY_PORTS 24 #define RS_TABLE_SIZE 64 25 #else 26 #define RS_TABLE_SIZE 4 27 #endif 28 29 #ifdef CONFIG_SERIAL_MANY_PORTS 30 #define FOURPORT_FLAGS ASYNC_FOURPORT 31 #define ACCENT_FLAGS 0 32 #define BOCA_FLAGS 0 33 #define HUB6_FLAGS 0 34 #endif 35 36 /* 37 * The following define the access methods for the HUB6 card. All 38 * access is through two ports for all 24 possible chips. The card is 39 * selected through the high 2 bits, the port on that card with the 40 * "middle" 3 bits, and the register on that port with the bottom 41 * 3 bits. 42 * 43 * While the access port and interrupt is configurable, the default 44 * port locations are 0x302 for the port control register, and 0x303 45 * for the data read/write register. Normally, the interrupt is at irq3 46 * but can be anything from 3 to 7 inclusive. Note that using 3 will 47 * require disabling com2. 48 */ 49 50 #define C_P(card,port) (((card)<<6|(port)<<3) + 1) 51 52 #define STD_SERIAL_PORT_DEFNS \ 53 /* UART CLK PORT IRQ FLAGS */ \ 54 { 0, BASE_BAUD, 0x3F8, 4, ASYNC_BOOT_AUTOCONF }, /* ttyS0 */ \ 55 { 0, BASE_BAUD, 0x2F8, 3, ASYNC_BOOT_AUTOCONF }, /* ttyS1 */ \ 56 { 0, BASE_BAUD, 0x3E8, 4, ASYNC_BOOT_AUTOCONF }, /* ttyS2 */ \ 57 { 0, BASE_BAUD, 0x2E8, 3, ASYNC_BOOT_AUTOCONF }, /* ttyS3 */ 58 59 60 #ifdef CONFIG_SERIAL_MANY_PORTS 61 #define EXTRA_SERIAL_PORT_DEFNS \ 62 { 0, BASE_BAUD, 0x1A0, 9, FOURPORT_FLAGS }, /* ttyS4 */ \ 63 { 0, BASE_BAUD, 0x1A8, 9, FOURPORT_FLAGS }, /* ttyS5 */ \ 64 { 0, BASE_BAUD, 0x1B0, 9, FOURPORT_FLAGS }, /* ttyS6 */ \ 65 { 0, BASE_BAUD, 0x1B8, 9, FOURPORT_FLAGS }, /* ttyS7 */ \ 66 { 0, BASE_BAUD, 0x2A0, 5, FOURPORT_FLAGS }, /* ttyS8 */ \ 67 { 0, BASE_BAUD, 0x2A8, 5, FOURPORT_FLAGS }, /* ttyS9 */ \ 68 { 0, BASE_BAUD, 0x2B0, 5, FOURPORT_FLAGS }, /* ttyS10 */ \ 69 { 0, BASE_BAUD, 0x2B8, 5, FOURPORT_FLAGS }, /* ttyS11 */ \ 70 { 0, BASE_BAUD, 0x330, 4, ACCENT_FLAGS }, /* ttyS12 */ \ 71 { 0, BASE_BAUD, 0x338, 4, ACCENT_FLAGS }, /* ttyS13 */ \ 72 { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS14 (spare) */ \ 73 { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS15 (spare) */ \ 74 { 0, BASE_BAUD, 0x100, 12, BOCA_FLAGS }, /* ttyS16 */ \ 75 { 0, BASE_BAUD, 0x108, 12, BOCA_FLAGS }, /* ttyS17 */ \ 76 { 0, BASE_BAUD, 0x110, 12, BOCA_FLAGS }, /* ttyS18 */ \ 77 { 0, BASE_BAUD, 0x118, 12, BOCA_FLAGS }, /* ttyS19 */ \ 78 { 0, BASE_BAUD, 0x120, 12, BOCA_FLAGS }, /* ttyS20 */ \ 79 { 0, BASE_BAUD, 0x128, 12, BOCA_FLAGS }, /* ttyS21 */ \ 80 { 0, BASE_BAUD, 0x130, 12, BOCA_FLAGS }, /* ttyS22 */ \ 81 { 0, BASE_BAUD, 0x138, 12, BOCA_FLAGS }, /* ttyS23 */ \ 82 { 0, BASE_BAUD, 0x140, 12, BOCA_FLAGS }, /* ttyS24 */ \ 83 { 0, BASE_BAUD, 0x148, 12, BOCA_FLAGS }, /* ttyS25 */ \ 84 { 0, BASE_BAUD, 0x150, 12, BOCA_FLAGS }, /* ttyS26 */ \ 85 { 0, BASE_BAUD, 0x158, 12, BOCA_FLAGS }, /* ttyS27 */ \ 86 { 0, BASE_BAUD, 0x160, 12, BOCA_FLAGS }, /* ttyS28 */ \ 87 { 0, BASE_BAUD, 0x168, 12, BOCA_FLAGS }, /* ttyS29 */ \ 88 { 0, BASE_BAUD, 0x170, 12, BOCA_FLAGS }, /* ttyS30 */ \ 89 { 0, BASE_BAUD, 0x178, 12, BOCA_FLAGS }, /* ttyS31 */ 90 #else 91 #define EXTRA_SERIAL_PORT_DEFNS 92 #endif 93 94 /* You can have up to four HUB6's in the system, but I've only 95 * included two cards here for a total of twelve ports. 96 */ 97 #if (defined(CONFIG_HUB6) && defined(CONFIG_SERIAL_MANY_PORTS)) 98 #define HUB6_SERIAL_PORT_DFNS \ 99 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,0) }, /* ttyS32 */ \ 100 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,1) }, /* ttyS33 */ \ 101 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,2) }, /* ttyS34 */ \ 102 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,3) }, /* ttyS35 */ \ 103 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,4) }, /* ttyS36 */ \ 104 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,5) }, /* ttyS37 */ \ 105 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,0) }, /* ttyS38 */ \ 106 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,1) }, /* ttyS39 */ \ 107 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,2) }, /* ttyS40 */ \ 108 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,3) }, /* ttyS41 */ \ 109 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,4) }, /* ttyS42 */ \ 110 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,5) }, /* ttyS43 */ 111 #else 112 #define HUB6_SERIAL_PORT_DFNS 113 #endif 114 115 #define SERIAL_PORT_DFNS \ 116 STD_SERIAL_PORT_DEFNS \ 117 EXTRA_SERIAL_PORT_DEFNS \ 118 HUB6_SERIAL_PORT_DFNS 119