1*3af75740Srafal /* -*-C++-*- $NetBSD: arm_pxa2x0_console.h,v 1.1 2008/03/08 02:26:03 rafal Exp $ */ 2*3af75740Srafal 3*3af75740Srafal /*- 4*3af75740Srafal * Copyright (c) 2008 The NetBSD Foundation, Inc. 5*3af75740Srafal * All rights reserved. 6*3af75740Srafal * 7*3af75740Srafal * This code is derived from software contributed to The NetBSD Foundation 8*3af75740Srafal * by Rafal K. Boni. 9*3af75740Srafal * 10*3af75740Srafal * Redistribution and use in source and binary forms, with or without 11*3af75740Srafal * modification, are permitted provided that the following conditions 12*3af75740Srafal * are met: 13*3af75740Srafal * 1. Redistributions of source code must retain the above copyright 14*3af75740Srafal * notice, this list of conditions and the following disclaimer. 15*3af75740Srafal * 2. Redistributions in binary form must reproduce the above copyright 16*3af75740Srafal * notice, this list of conditions and the following disclaimer in the 17*3af75740Srafal * documentation and/or other materials provided with the distribution. 18*3af75740Srafal * 19*3af75740Srafal * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20*3af75740Srafal * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21*3af75740Srafal * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22*3af75740Srafal * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23*3af75740Srafal * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24*3af75740Srafal * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25*3af75740Srafal * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26*3af75740Srafal * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27*3af75740Srafal * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28*3af75740Srafal * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29*3af75740Srafal * POSSIBILITY OF SUCH DAMAGE. 30*3af75740Srafal */ 31*3af75740Srafal 32*3af75740Srafal #ifndef _HPCBOOT_ARM_PXA2X0_CONSOLE_H_ 33*3af75740Srafal #define _HPCBOOT_ARM_PXA2X0_CONSOLE_H_ 34*3af75740Srafal 35*3af75740Srafal #include <hpcboot.h> 36*3af75740Srafal #include <memory.h> 37*3af75740Srafal #include <arm/arm_console.h> 38*3af75740Srafal 39*3af75740Srafal class PXA2x0Console : public ARMConsole { 40*3af75740Srafal friend class ARMConsole; 41*3af75740Srafal 42*3af75740Srafal private: 43*3af75740Srafal MemoryManager *&_mem; 44*3af75740Srafal vaddr_t _uart_base; 45*3af75740Srafal 46*3af75740Srafal private: PXA2x0Console(MemoryManager * & mem)47*3af75740Srafal PXA2x0Console(MemoryManager *& mem) : _mem(mem), _uart_base(~0) { } ~PXA2x0Console()48*3af75740Srafal virtual ~PXA2x0Console() { 49*3af75740Srafal if (_uart_base != ~0) 50*3af75740Srafal _mem->unmapPhysicalPage(_uart_base); 51*3af75740Srafal } 52*3af75740Srafal __tx_busy(void)53*3af75740Srafal void __tx_busy(void) { 54*3af75740Srafal uint8_t reg; 55*3af75740Srafal do 56*3af75740Srafal reg = VOLATILE_REF8(_uart_base + 0x14); 57*3af75740Srafal while (!(reg & 0x20)); 58*3af75740Srafal } 59*3af75740Srafal __clr_intr(void)60*3af75740Srafal void __clr_intr(void) { 61*3af75740Srafal uint8_t reg = VOLATILE_REF8(_uart_base + 0x08); 62*3af75740Srafal } 63*3af75740Srafal __putc(const char s)64*3af75740Srafal virtual void __putc(const char s) { 65*3af75740Srafal __tx_busy(); // wait until previous transmit done. 66*3af75740Srafal VOLATILE_REF8(_uart_base + 0x00) = 67*3af75740Srafal static_cast <uint8_t>(0xff & s); 68*3af75740Srafal __tx_busy(); // wait until this transmit done. 69*3af75740Srafal __clr_intr(); // clear interrupt register 70*3af75740Srafal } 71*3af75740Srafal 72*3af75740Srafal public: init(void)73*3af75740Srafal virtual BOOL init(void) { 74*3af75740Srafal if (!SerialConsole::init()) 75*3af75740Srafal return FALSE; 76*3af75740Srafal 77*3af75740Srafal _uart_base = 78*3af75740Srafal _mem->mapPhysicalPage(0x40100000, 0x100, PAGE_READWRITE); 79*3af75740Srafal 80*3af75740Srafal if (_uart_base == ~0) 81*3af75740Srafal return FALSE; 82*3af75740Srafal 83*3af75740Srafal return TRUE; 84*3af75740Srafal } 85*3af75740Srafal }; 86*3af75740Srafal #endif //_HPCBOOT_ARM_PXA2X0_CONSOLE_H_ 87