summaryrefslogtreecommitdiff
path: root/cpu/bf533/serial.c
diff options
context:
space:
mode:
authorMike Frysinger <vapier@gentoo.org>2008-03-30 15:46:13 -0400
committerMike Frysinger <vapier@gentoo.org>2008-03-30 15:50:19 -0400
commit9171fc81722c20fdb5a829a58b17c9eaadd5fb44 (patch)
treed5b8741232955f2c01b0c36c46c867d15e8245a7 /cpu/bf533/serial.c
parent9ce7e53abd039decea1af67aec81bbd5df7a2593 (diff)
downloadu-boot-imx-9171fc81722c20fdb5a829a58b17c9eaadd5fb44.zip
u-boot-imx-9171fc81722c20fdb5a829a58b17c9eaadd5fb44.tar.gz
u-boot-imx-9171fc81722c20fdb5a829a58b17c9eaadd5fb44.tar.bz2
Blackfin: unify cpu and boot modes
All of the duplicated code for Blackfin processors and boot modes have been unified. After all, the core is the same for all processors, just the peripheral set differs (which gets handled in the drivers). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'cpu/bf533/serial.c')
-rw-r--r--cpu/bf533/serial.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/cpu/bf533/serial.c b/cpu/bf533/serial.c
deleted file mode 100644
index 05fcfcc..0000000
--- a/cpu/bf533/serial.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * U-boot - serial.c Serial driver for BF533
- *
- * Copyright (c) 2005-2007 Analog Devices Inc.
- *
- * This file is based on
- * bf533_serial.c: Serial driver for BlackFin BF533 DSP internal UART.
- * Copyright (c) 2003 Bas Vermeulen <bas@buyways.nl>,
- * BuyWays B.V. (www.buyways.nl)
- *
- * Based heavily on blkfinserial.c
- * blkfinserial.c: Serial driver for BlackFin DSP internal USRTs.
- * Copyright(c) 2003 Metrowerks <mwaddel@metrowerks.com>
- * Copyright(c) 2001 Tony Z. Kou <tonyko@arcturusnetworks.com>
- * Copyright(c) 2001-2002 Arcturus Networks Inc. <www.arcturusnetworks.com>
- *
- * Based on code from 68328 version serial driver imlpementation which was:
- * Copyright (C) 1995 David S. Miller <davem@caip.rutgers.edu>
- * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
- * Copyright (C) 1998, 1999 D. Jeff Dionne <jeff@uclinux.org>
- * Copyright (C) 1999 Vladimir Gurevich <vgurevic@cisco.com>
- *
- * (C) Copyright 2000-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
- */
-
-#include <common.h>
-#include <asm/system.h>
-#include <asm/bitops.h>
-#include <asm/delay.h>
-#include <asm/io.h>
-#include "bf533_serial.h"
-#include <asm/mach-common/bits/uart.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-unsigned long pll_div_fact;
-
-void calc_baud(void)
-{
- unsigned char i;
- int temp;
- u_long sclk = get_sclk();
-
- for (i = 0; i < sizeof(baud_table) / sizeof(int); i++) {
- temp = sclk / (baud_table[i] * 8);
- if ((temp & 0x1) == 1) {
- temp++;
- }
- temp = temp / 2;
- hw_baud_table[i].dl_high = (temp >> 8) & 0xFF;
- hw_baud_table[i].dl_low = (temp) & 0xFF;
- }
-}
-
-void serial_setbrg(void)
-{
- int i;
-
- calc_baud();
-
- for (i = 0; i < sizeof(baud_table) / sizeof(int); i++) {
- if (gd->baudrate == baud_table[i])
- break;
- }
-
- /* Enable UART */
- *pUART_GCTL |= UCEN;
- SSYNC();
-
- /* Set DLAB in LCR to Access DLL and DLH */
- ACCESS_LATCH;
- SSYNC();
-
- *pUART_DLL = hw_baud_table[i].dl_low;
- SSYNC();
- *pUART_DLH = hw_baud_table[i].dl_high;
- SSYNC();
-
- /* Clear DLAB in LCR to Access THR RBR IER */
- ACCESS_PORT_IER;
- SSYNC();
-
- /* Enable ERBFI and ELSI interrupts
- * to poll SIC_ISR register*/
- *pUART_IER = ELSI | ERBFI | ETBEI;
- SSYNC();
-
- /* Set LCR to Word Lengh 8-bit word select */
- *pUART_LCR = WLS_8;
- SSYNC();
-
- return;
-}
-
-int serial_init(void)
-{
- serial_setbrg();
- return (0);
-}
-
-void serial_putc(const char c)
-{
- if ((*pUART_LSR) & TEMT) {
- if (c == '\n')
- serial_putc('\r');
-
- local_put_char(c);
- }
-
- while (!((*pUART_LSR) & TEMT))
- SYNC_ALL;
-
- return;
-}
-
-int serial_tstc(void)
-{
- if (*pUART_LSR & DR)
- return 1;
- else
- return 0;
-}
-
-int serial_getc(void)
-{
- unsigned short uart_lsr_val, uart_rbr_val;
- unsigned long isr_val;
- int ret;
-
- /* Poll for RX Interrupt */
- while (!serial_tstc())
- continue;
- asm("csync;");
-
- uart_lsr_val = *pUART_LSR; /* Clear status bit */
- uart_rbr_val = *pUART_RBR; /* getc() */
-
- if (uart_lsr_val & (OE|PE|FE|BI)) {
- ret = -1;
- } else {
- ret = uart_rbr_val & 0xff;
- }
-
- return ret;
-}
-
-void serial_puts(const char *s)
-{
- while (*s) {
- serial_putc(*s++);
- }
-}
-
-static void local_put_char(char ch)
-{
- int flags = 0;
- unsigned long isr_val;
-
- /* Poll for TX Interruput */
- while (!(*pUART_LSR & THRE))
- continue;
- asm("csync;");
-
- *pUART_THR = ch; /* putc() */
-
- return;
-}