diff options
Diffstat (limited to 'include/linux/platform_data/sccnxp.h')
| -rw-r--r-- | include/linux/platform_data/sccnxp.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/include/linux/platform_data/sccnxp.h b/include/linux/platform_data/sccnxp.h new file mode 100644 index 000000000000..7311ccd3217f --- /dev/null +++ b/include/linux/platform_data/sccnxp.h | |||
| @@ -0,0 +1,93 @@ | |||
| 1 | /* | ||
| 2 | * NXP (Philips) SCC+++(SCN+++) serial driver | ||
| 3 | * | ||
| 4 | * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru> | ||
| 5 | * | ||
| 6 | * Based on sc26xx.c, by Thomas Bogendörfer (tsbogend@alpha.franken.de) | ||
| 7 | * | ||
| 8 | * This program is free software; you can redistribute it and/or modify | ||
| 9 | * it under the terms of the GNU General Public License as published by | ||
| 10 | * the Free Software Foundation; either version 2 of the License, or | ||
| 11 | * (at your option) any later version. | ||
| 12 | */ | ||
| 13 | |||
| 14 | #ifndef __SCCNXP_H | ||
| 15 | #define __SCCNXP_H | ||
| 16 | |||
| 17 | #define SCCNXP_MAX_UARTS 2 | ||
| 18 | |||
| 19 | /* Output lines */ | ||
| 20 | #define LINE_OP0 1 | ||
| 21 | #define LINE_OP1 2 | ||
| 22 | #define LINE_OP2 3 | ||
| 23 | #define LINE_OP3 4 | ||
| 24 | #define LINE_OP4 5 | ||
| 25 | #define LINE_OP5 6 | ||
| 26 | #define LINE_OP6 7 | ||
| 27 | #define LINE_OP7 8 | ||
| 28 | |||
| 29 | /* Input lines */ | ||
| 30 | #define LINE_IP0 9 | ||
| 31 | #define LINE_IP1 10 | ||
| 32 | #define LINE_IP2 11 | ||
| 33 | #define LINE_IP3 12 | ||
| 34 | #define LINE_IP4 13 | ||
| 35 | #define LINE_IP5 14 | ||
| 36 | #define LINE_IP6 15 | ||
| 37 | |||
| 38 | /* Signals */ | ||
| 39 | #define DTR_OP 0 /* DTR */ | ||
| 40 | #define RTS_OP 4 /* RTS */ | ||
| 41 | #define DSR_IP 8 /* DSR */ | ||
| 42 | #define CTS_IP 12 /* CTS */ | ||
| 43 | #define DCD_IP 16 /* DCD */ | ||
| 44 | #define RNG_IP 20 /* RNG */ | ||
| 45 | |||
| 46 | #define DIR_OP 24 /* Special signal for control RS-485. | ||
| 47 | * Goes high when transmit, | ||
| 48 | * then goes low. | ||
| 49 | */ | ||
| 50 | |||
| 51 | /* Routing control signal 'sig' to line 'line' */ | ||
| 52 | #define MCTRL_SIG(sig, line) ((line) << (sig)) | ||
| 53 | |||
| 54 | /* | ||
| 55 | * Example board initialization data: | ||
| 56 | * | ||
| 57 | * static struct resource sc2892_resources[] = { | ||
| 58 | * DEFINE_RES_MEM(UART_PHYS_START, 0x10), | ||
| 59 | * DEFINE_RES_IRQ(IRQ_EXT2), | ||
| 60 | * }; | ||
| 61 | * | ||
| 62 | * static struct sccnxp_pdata sc2892_info = { | ||
| 63 | * .frequency = 3686400, | ||
| 64 | * .mctrl_cfg[0] = MCTRL_SIG(DIR_OP, LINE_OP0), | ||
| 65 | * .mctrl_cfg[1] = MCTRL_SIG(DIR_OP, LINE_OP1), | ||
| 66 | * }; | ||
| 67 | * | ||
| 68 | * static struct platform_device sc2892 = { | ||
| 69 | * .name = "sc2892", | ||
| 70 | * .id = -1, | ||
| 71 | * .resource = sc2892_resources, | ||
| 72 | * .num_resources = ARRAY_SIZE(sc2892_resources), | ||
| 73 | * .dev = { | ||
| 74 | * .platform_data = &sc2892_info, | ||
| 75 | * }, | ||
| 76 | * }; | ||
| 77 | */ | ||
| 78 | |||
| 79 | /* SCCNXP platform data structure */ | ||
| 80 | struct sccnxp_pdata { | ||
| 81 | /* Frequency (extrenal clock or crystal) */ | ||
| 82 | int frequency; | ||
| 83 | /* Shift for A0 line */ | ||
| 84 | const u8 reg_shift; | ||
| 85 | /* Modem control lines configuration */ | ||
| 86 | const u32 mctrl_cfg[SCCNXP_MAX_UARTS]; | ||
| 87 | /* Called during startup */ | ||
| 88 | void (*init)(void); | ||
| 89 | /* Called before finish */ | ||
| 90 | void (*exit)(void); | ||
| 91 | }; | ||
| 92 | |||
| 93 | #endif | ||
