mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 10:46:15 +09:00
2a4741d9a1
The pxa255_idp being an old unmaintained board showed several issues: 1. CONFIG_INIT_CRITICAL was still defined. 2. Neither CONFIG_MAC_PARTITION nor CONFIG_DOS_PARTITION was defined. 3. Symbol flash_addr was undeclared. 4. The boards lowlevel_init function was still called memsetup. 5. The TEXT_BASE was still 0xa3000000 rather than 0xa3080000. 6. Using -march=armv5 instead of -march=armv5te resulted in lots of 'target CPU does not support interworking' warnings on recent compilers. 7. The PXA's serial driver redefined FFUART, BTUART and STUART used as indexes rather than the register definitions from the pxa-regs header file. Renamed them to FFUART_INDEX, BTUART_INDEX and STUART_INDEX to avoid any ambiguities. 8. There were several redefinition warnings concerning ICMR, OSMR3, OSCR, OWER, OIER, RCSR and CCCR in the PXA's assembly start file. 9. The board configuration file was rather outdated. 10. The part header file defined the vendor, product and revision arrays as unsigned chars instead of just chars in the block_dev_desc_t structure. Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
386 lines
7.4 KiB
C
386 lines
7.4 KiB
C
/*
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* (C) Copyright 2002
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* Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
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*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Alex Zuepke <azu@sysgo.de>
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*
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* Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <serial.h>
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#include <asm/arch/pxa-regs.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define FFUART_INDEX 0
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#define BTUART_INDEX 1
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#define STUART_INDEX 2
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#ifndef CONFIG_SERIAL_MULTI
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#if defined (CONFIG_FFUART)
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#define UART_INDEX FFUART_INDEX
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#elif defined (CONFIG_BTUART)
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#define UART_INDEX BTUART_INDEX
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#elif defined (CONFIG_STUART)
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#define UART_INDEX STUART_INDEX
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#else
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#error "Bad: you didn't configure serial ..."
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#endif
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#endif
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void pxa_setbrg_dev (unsigned int uart_index)
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{
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unsigned int quot = 0;
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if (gd->baudrate == 1200)
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quot = 768;
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else if (gd->baudrate == 9600)
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quot = 96;
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else if (gd->baudrate == 19200)
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quot = 48;
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else if (gd->baudrate == 38400)
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quot = 24;
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else if (gd->baudrate == 57600)
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quot = 16;
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else if (gd->baudrate == 115200)
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quot = 8;
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else
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hang ();
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switch (uart_index) {
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case FFUART_INDEX:
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#ifdef CONFIG_CPU_MONAHANS
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CKENA |= CKENA_22_FFUART;
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#else
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CKEN |= CKEN6_FFUART;
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#endif /* CONFIG_CPU_MONAHANS */
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FFIER = 0; /* Disable for now */
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FFFCR = 0; /* No fifos enabled */
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/* set baud rate */
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FFLCR = LCR_WLS0 | LCR_WLS1 | LCR_DLAB;
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FFDLL = quot & 0xff;
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FFDLH = quot >> 8;
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FFLCR = LCR_WLS0 | LCR_WLS1;
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FFIER = IER_UUE; /* Enable FFUART */
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break;
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case BTUART_INDEX:
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#ifdef CONFIG_CPU_MONAHANS
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CKENA |= CKENA_21_BTUART;
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#else
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CKEN |= CKEN7_BTUART;
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#endif /* CONFIG_CPU_MONAHANS */
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BTIER = 0;
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BTFCR = 0;
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/* set baud rate */
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BTLCR = LCR_DLAB;
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BTDLL = quot & 0xff;
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BTDLH = quot >> 8;
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BTLCR = LCR_WLS0 | LCR_WLS1;
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BTIER = IER_UUE; /* Enable BFUART */
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break;
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case STUART_INDEX:
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#ifdef CONFIG_CPU_MONAHANS
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CKENA |= CKENA_23_STUART;
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#else
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CKEN |= CKEN5_STUART;
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#endif /* CONFIG_CPU_MONAHANS */
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STIER = 0;
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STFCR = 0;
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/* set baud rate */
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STLCR = LCR_DLAB;
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STDLL = quot & 0xff;
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STDLH = quot >> 8;
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STLCR = LCR_WLS0 | LCR_WLS1;
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STIER = IER_UUE; /* Enable STUART */
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break;
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default:
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hang();
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}
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}
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/*
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* Initialise the serial port with the given baudrate. The settings
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* are always 8 data bits, no parity, 1 stop bit, no start bits.
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*
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*/
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int pxa_init_dev (unsigned int uart_index)
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{
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pxa_setbrg_dev (uart_index);
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return (0);
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}
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/*
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* Output a single byte to the serial port.
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*/
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void pxa_putc_dev (unsigned int uart_index,const char c)
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{
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switch (uart_index) {
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case FFUART_INDEX:
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/* wait for room in the tx FIFO on FFUART */
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while ((FFLSR & LSR_TEMT) == 0)
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WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
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FFTHR = c;
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break;
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case BTUART_INDEX:
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while ((BTLSR & LSR_TEMT ) == 0 )
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WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
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BTTHR = c;
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break;
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case STUART_INDEX:
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while ((STLSR & LSR_TEMT ) == 0 )
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WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
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STTHR = c;
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break;
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}
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/* If \n, also do \r */
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if (c == '\n')
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pxa_putc_dev (uart_index,'\r');
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}
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/*
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* Read a single byte from the serial port. Returns 1 on success, 0
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* otherwise. When the function is succesfull, the character read is
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* written into its argument c.
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*/
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int pxa_tstc_dev (unsigned int uart_index)
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{
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switch (uart_index) {
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case FFUART_INDEX:
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return FFLSR & LSR_DR;
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case BTUART_INDEX:
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return BTLSR & LSR_DR;
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case STUART_INDEX:
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return STLSR & LSR_DR;
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}
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return -1;
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}
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/*
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* Read a single byte from the serial port. Returns 1 on success, 0
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* otherwise. When the function is succesfull, the character read is
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* written into its argument c.
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*/
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int pxa_getc_dev (unsigned int uart_index)
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{
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switch (uart_index) {
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case FFUART_INDEX:
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while (!(FFLSR & LSR_DR))
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WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
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return (char) FFRBR & 0xff;
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case BTUART_INDEX:
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while (!(BTLSR & LSR_DR))
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WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
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return (char) BTRBR & 0xff;
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case STUART_INDEX:
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while (!(STLSR & LSR_DR))
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WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
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return (char) STRBR & 0xff;
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}
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return -1;
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}
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void
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pxa_puts_dev (unsigned int uart_index,const char *s)
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{
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while (*s) {
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pxa_putc_dev (uart_index,*s++);
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}
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}
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#if defined (CONFIG_FFUART)
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static int ffuart_init(void)
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{
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return pxa_init_dev(FFUART_INDEX);
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}
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static void ffuart_setbrg(void)
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{
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return pxa_setbrg_dev(FFUART_INDEX);
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}
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static void ffuart_putc(const char c)
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{
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return pxa_putc_dev(FFUART_INDEX,c);
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}
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static void ffuart_puts(const char *s)
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{
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return pxa_puts_dev(FFUART_INDEX,s);
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}
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static int ffuart_getc(void)
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{
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return pxa_getc_dev(FFUART_INDEX);
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}
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static int ffuart_tstc(void)
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{
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return pxa_tstc_dev(FFUART_INDEX);
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}
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struct serial_device serial_ffuart_device =
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{
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"serial_ffuart",
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"PXA",
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ffuart_init,
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ffuart_setbrg,
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ffuart_getc,
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ffuart_tstc,
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ffuart_putc,
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ffuart_puts,
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};
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#endif
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#if defined (CONFIG_BTUART)
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static int btuart_init(void)
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{
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return pxa_init_dev(BTUART_INDEX);
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}
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static void btuart_setbrg(void)
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{
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return pxa_setbrg_dev(BTUART_INDEX);
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}
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static void btuart_putc(const char c)
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{
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return pxa_putc_dev(BTUART_INDEX,c);
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}
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static void btuart_puts(const char *s)
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{
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return pxa_puts_dev(BTUART_INDEX,s);
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}
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static int btuart_getc(void)
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{
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return pxa_getc_dev(BTUART_INDEX);
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}
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static int btuart_tstc(void)
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{
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return pxa_tstc_dev(BTUART_INDEX);
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}
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struct serial_device serial_btuart_device =
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{
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"serial_btuart",
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"PXA",
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btuart_init,
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btuart_setbrg,
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btuart_getc,
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btuart_tstc,
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btuart_putc,
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btuart_puts,
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};
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#endif
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#if defined (CONFIG_STUART)
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static int stuart_init(void)
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{
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return pxa_init_dev(STUART_INDEX);
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}
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static void stuart_setbrg(void)
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{
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return pxa_setbrg_dev(STUART_INDEX);
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}
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static void stuart_putc(const char c)
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{
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return pxa_putc_dev(STUART_INDEX,c);
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}
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static void stuart_puts(const char *s)
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{
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return pxa_puts_dev(STUART_INDEX,s);
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}
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static int stuart_getc(void)
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{
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return pxa_getc_dev(STUART_INDEX);
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}
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static int stuart_tstc(void)
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{
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return pxa_tstc_dev(STUART_INDEX);
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}
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struct serial_device serial_stuart_device =
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{
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"serial_stuart",
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"PXA",
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stuart_init,
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stuart_setbrg,
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stuart_getc,
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stuart_tstc,
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stuart_putc,
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stuart_puts,
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};
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#endif
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#ifndef CONFIG_SERIAL_MULTI
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inline int serial_init(void) {
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return (pxa_init_dev(UART_INDEX));
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}
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void serial_setbrg(void) {
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pxa_setbrg_dev(UART_INDEX);
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}
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int serial_getc(void) {
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return(pxa_getc_dev(UART_INDEX));
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}
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int serial_tstc(void) {
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return(pxa_tstc_dev(UART_INDEX));
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}
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void serial_putc(const char c) {
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pxa_putc_dev(UART_INDEX,c);
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}
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void serial_puts(const char *s) {
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pxa_puts_dev(UART_INDEX,s);
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}
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#endif /* CONFIG_SERIAL_MULTI */
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