diff options
Diffstat (limited to 'bsps/powerpc/gen5200/nvram/nvram.c')
| -rw-r--r-- | bsps/powerpc/gen5200/nvram/nvram.c | 110 |
1 files changed, 32 insertions, 78 deletions
diff --git a/bsps/powerpc/gen5200/nvram/nvram.c b/bsps/powerpc/gen5200/nvram/nvram.c index 99192ac3c4..cbeedc2e40 100644 --- a/bsps/powerpc/gen5200/nvram/nvram.c +++ b/bsps/powerpc/gen5200/nvram/nvram.c @@ -1,81 +1,35 @@ -/*===============================================================*\ -| Project: RTEMS generic MPC5200 BSP | -+-----------------------------------------------------------------+ -| Partially based on the code references which are named below. | -| Adaptions, modifications, enhancements and any recent parts of | -| the code are: | -| Copyright (c) 2005 | -| Embedded Brains GmbH | -| Obere Lagerstr. 30 | -| D-82178 Puchheim | -| Germany | -| rtems@embedded-brains.de | -+-----------------------------------------------------------------+ -| The license and distribution terms for this file may be | -| found in the file LICENSE in this distribution or at | -| | -| http://www.rtems.org/license/LICENSE. | -| | -+-----------------------------------------------------------------+ -| this file contains the nvram functions | -\*===============================================================*/ -/***********************************************************************/ -/* */ -/* Module: nvram.c */ -/* Date: 07/17/2003 */ -/* Purpose: RTEMS M93C64-based NV memory device driver */ -/* */ -/*---------------------------------------------------------------------*/ -/* */ -/* Description: M93C46 is a serial microwire EEPROM which contains */ -/* 1Kbit (128 bytes/64 words) of non-volatile memory. */ -/* The device can be coigured for byte- or word- */ -/* access. The driver provides a file-like interface */ -/* to this memory. */ -/* */ -/* MPC5x00 PIN settings: */ -/* */ -/* PSC3_6 (output) -> MC93C46 serial data in (D) */ -/* PSC3_7 (input) -> MC93C46 serial data out (Q) */ -/* PSC3_8 (output) -> MC93C46 chip select input (S) */ -/* PSC3_9 (output) -> MC93C46 serial clock (C) */ -/* */ -/*---------------------------------------------------------------------*/ -/* */ -/* Code */ -/* References: DS1307-based Non-Volatile memory device driver */ -/* Module: nvram.c */ -/* Project: RTEMS 4.6.0pre1 / MCF5206Elite BSP */ -/* Version 1.2 */ -/* Date: 11/04/2002 */ -/* Author: Victor V. Vengerov */ -/* Copyright: Copyright (C) 2000 OKTET Ltd.,St.-Petersburg,Russia */ -/* */ -/* The license and distribution terms for this file may be */ -/* found in the file LICENSE in this distribution or at */ -/* http://www.rtems.org/license/LICENSE. */ -/* */ -/*---------------------------------------------------------------------*/ -/* */ -/* Partially based on the code references which are named above. */ -/* Adaptions, modifications, enhancements and any recent parts of */ -/* the code are under the right of */ -/* */ -/* IPR Engineering, Dachauer Straße 38, D-80335 München */ -/* Copyright(C) 2003 */ -/* */ -/*---------------------------------------------------------------------*/ -/* */ -/* IPR Engineering makes no representation or warranties with */ -/* respect to the performance of this computer program, and */ -/* specifically disclaims any responsibility for any damages, */ -/* special or consequential, connected with the use of this program. */ -/* */ -/*---------------------------------------------------------------------*/ -/* */ -/* Version history: 1.0 */ -/* */ -/***********************************************************************/ +/* + * RTEMS generic MPC5200 BSP + * + * RTEMS M93C64-based NV memory device driver. + * + * M93C46 is a serial microwire EEPROM which contains + * 1Kbit (128 bytes/64 words) of non-volatile memory. + * The device can be coigured for byte- or word- + * access. The driver provides a file-like interface + * to this memory. + * + * MPC5x00 PIN settings: + * + * PSC3_6 (output) -> MC93C46 serial data in (D) + * PSC3_7 (input) -> MC93C46 serial data out (Q) + * PSC3_8 (output) -> MC93C46 chip select input (S) + * PSC3_9 (output) -> MC93C46 serial clock (C) + * + * Based on: DS1307-based Non-Volatile memory device driver from Victor V. + * Vengerov. + */ + +/* + * Copyright (C) 2000 OKTET Ltd.,St.-Petersburg,Russia + * Author: Victor V. Vengerov + * Copyright (c) 2003 IPR Engineering + * Copyright (c) 2005 embedded brains GmbH & Co. KG + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ #include <rtems.h> #include <rtems/libio.h> |