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Diffstat (limited to 'arch/powerpc/cpu/ppc4xx/iop480_uart.c')
-rw-r--r--arch/powerpc/cpu/ppc4xx/iop480_uart.c254
1 files changed, 0 insertions, 254 deletions
diff --git a/arch/powerpc/cpu/ppc4xx/iop480_uart.c b/arch/powerpc/cpu/ppc4xx/iop480_uart.c
deleted file mode 100644
index 9473984..0000000
--- a/arch/powerpc/cpu/ppc4xx/iop480_uart.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * (C) Copyright 2000-2006
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <commproc.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <watchdog.h>
-#include <serial.h>
-#include <linux/compiler.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifdef CONFIG_IOP480
-
-#define SPU_BASE 0x40000000
-
-#define spu_LineStat_rc 0x00 /* Line Status Register (Read/Clear) */
-#define spu_LineStat_w 0x04 /* Line Status Register (Set) */
-#define spu_Handshk_rc 0x08 /* Handshake Status Register (Read/Clear) */
-#define spu_Handshk_w 0x0c /* Handshake Status Register (Set) */
-#define spu_BRateDivh 0x10 /* Baud rate divisor high */
-#define spu_BRateDivl 0x14 /* Baud rate divisor low */
-#define spu_CtlReg 0x18 /* Control Register */
-#define spu_RxCmd 0x1c /* Rx Command Register */
-#define spu_TxCmd 0x20 /* Tx Command Register */
-#define spu_RxBuff 0x24 /* Rx data buffer */
-#define spu_TxBuff 0x24 /* Tx data buffer */
-
-/*-----------------------------------------------------------------------------+
- | Line Status Register.
- +-----------------------------------------------------------------------------*/
-#define asyncLSRport1 0x40000000
-#define asyncLSRport1set 0x40000004
-#define asyncLSRDataReady 0x80
-#define asyncLSRFramingError 0x40
-#define asyncLSROverrunError 0x20
-#define asyncLSRParityError 0x10
-#define asyncLSRBreakInterrupt 0x08
-#define asyncLSRTxHoldEmpty 0x04
-#define asyncLSRTxShiftEmpty 0x02
-
-/*-----------------------------------------------------------------------------+
- | Handshake Status Register.
- +-----------------------------------------------------------------------------*/
-#define asyncHSRport1 0x40000008
-#define asyncHSRport1set 0x4000000c
-#define asyncHSRDsr 0x80
-#define asyncLSRCts 0x40
-
-/*-----------------------------------------------------------------------------+
- | Control Register.
- +-----------------------------------------------------------------------------*/
-#define asyncCRport1 0x40000018
-#define asyncCRNormal 0x00
-#define asyncCRLoopback 0x40
-#define asyncCRAutoEcho 0x80
-#define asyncCRDtr 0x20
-#define asyncCRRts 0x10
-#define asyncCRWordLength7 0x00
-#define asyncCRWordLength8 0x08
-#define asyncCRParityDisable 0x00
-#define asyncCRParityEnable 0x04
-#define asyncCREvenParity 0x00
-#define asyncCROddParity 0x02
-#define asyncCRStopBitsOne 0x00
-#define asyncCRStopBitsTwo 0x01
-#define asyncCRDisableDtrRts 0x00
-
-/*-----------------------------------------------------------------------------+
- | Receiver Command Register.
- +-----------------------------------------------------------------------------*/
-#define asyncRCRport1 0x4000001c
-#define asyncRCRDisable 0x00
-#define asyncRCREnable 0x80
-#define asyncRCRIntDisable 0x00
-#define asyncRCRIntEnabled 0x20
-#define asyncRCRDMACh2 0x40
-#define asyncRCRDMACh3 0x60
-#define asyncRCRErrorInt 0x10
-#define asyncRCRPauseEnable 0x08
-
-/*-----------------------------------------------------------------------------+
- | Transmitter Command Register.
- +-----------------------------------------------------------------------------*/
-#define asyncTCRport1 0x40000020
-#define asyncTCRDisable 0x00
-#define asyncTCREnable 0x80
-#define asyncTCRIntDisable 0x00
-#define asyncTCRIntEnabled 0x20
-#define asyncTCRDMACh2 0x40
-#define asyncTCRDMACh3 0x60
-#define asyncTCRTxEmpty 0x10
-#define asyncTCRErrorInt 0x08
-#define asyncTCRStopPause 0x04
-#define asyncTCRBreakGen 0x02
-
-/*-----------------------------------------------------------------------------+
- | Miscellanies defines.
- +-----------------------------------------------------------------------------*/
-#define asyncTxBufferport1 0x40000024
-#define asyncRxBufferport1 0x40000024
-#define asyncDLABLsbport1 0x40000014
-#define asyncDLABMsbport1 0x40000010
-#define asyncXOFFchar 0x13
-#define asyncXONchar 0x11
-
-/*
- * Minimal serial functions needed to use one of the SMC ports
- * as serial console interface.
- */
-
-static int iop480_serial_init(void)
-{
- unsigned short br_reg;
-
- br_reg = ((((CONFIG_CPUCLOCK * 1000000) / 16) / gd->baudrate) - 1);
-
- /*
- * Init onboard UART
- */
- out_8((u8 *)SPU_BASE + spu_LineStat_rc, 0x78); /* Clear all bits in Line Status Reg */
- out_8((u8 *)SPU_BASE + spu_BRateDivl, (br_reg & 0x00ff)); /* Set baud rate divisor... */
- out_8((u8 *)SPU_BASE + spu_BRateDivh, ((br_reg & 0xff00) >> 8)); /* ... */
- out_8((u8 *)SPU_BASE + spu_CtlReg, 0x08); /* Set 8 bits, no parity and 1 stop bit */
- out_8((u8 *)SPU_BASE + spu_RxCmd, 0xb0); /* Enable Rx */
- out_8((u8 *)SPU_BASE + spu_TxCmd, 0x9c); /* Enable Tx */
- out_8((u8 *)SPU_BASE + spu_Handshk_rc, 0xff); /* Clear Handshake */
- in_8((u8 *)SPU_BASE + spu_RxBuff); /* Dummy read, to clear receiver */
-
- return (0);
-}
-
-static void iop480_serial_setbrg(void)
-{
- unsigned short br_reg;
-
- br_reg = ((((CONFIG_CPUCLOCK * 1000000) / 16) / gd->baudrate) - 1);
-
- out_8((u8 *)SPU_BASE + spu_BRateDivl,
- (br_reg & 0x00ff)); /* Set baud rate divisor... */
- out_8((u8 *)SPU_BASE + spu_BRateDivh,
- ((br_reg & 0xff00) >> 8)); /* ... */
-}
-
-static void iop480_serial_putc(const char c)
-{
- if (c == '\n')
- serial_putc ('\r');
-
- /* load status from handshake register */
- if (in_8((u8 *)SPU_BASE + spu_Handshk_rc) != 00)
- out_8((u8 *)SPU_BASE + spu_Handshk_rc, 0xff); /* Clear Handshake */
-
- out_8((u8 *)SPU_BASE + spu_TxBuff, c); /* Put char */
-
- while ((in_8((u8 *)SPU_BASE + spu_LineStat_rc) & 04) != 04) {
- if (in_8((u8 *)SPU_BASE + spu_Handshk_rc) != 00)
- out_8((u8 *)SPU_BASE + spu_Handshk_rc, 0xff); /* Clear Handshake */
- }
-}
-
-static void iop480_serial_puts(const char *s)
-{
- while (*s) {
- serial_putc (*s++);
- }
-}
-
-static int iop480_serial_getc(void)
-{
- unsigned char status = 0;
-
- while (1) {
- status = in_8((u8 *)asyncLSRport1);
- if ((status & asyncLSRDataReady) != 0x0) {
- break;
- }
- if ((status & ( asyncLSRFramingError |
- asyncLSROverrunError |
- asyncLSRParityError |
- asyncLSRBreakInterrupt )) != 0) {
- (void) out_8((u8 *)asyncLSRport1,
- asyncLSRFramingError |
- asyncLSROverrunError |
- asyncLSRParityError |
- asyncLSRBreakInterrupt );
- }
- }
- return (0x000000ff & (int) in_8((u8 *)asyncRxBufferport1));
-}
-
-static int iop480_serial_tstc(void)
-{
- unsigned char status;
-
- status = in_8((u8 *)asyncLSRport1);
- if ((status & asyncLSRDataReady) != 0x0) {
- return (1);
- }
- if ((status & ( asyncLSRFramingError |
- asyncLSROverrunError |
- asyncLSRParityError |
- asyncLSRBreakInterrupt )) != 0) {
- (void) out_8((u8 *)asyncLSRport1,
- asyncLSRFramingError |
- asyncLSROverrunError |
- asyncLSRParityError |
- asyncLSRBreakInterrupt);
- }
- return 0;
-}
-
-static struct serial_device iop480_serial_drv = {
- .name = "iop480_serial",
- .start = iop480_serial_init,
- .stop = NULL,
- .setbrg = iop480_serial_setbrg,
- .putc = iop480_serial_putc,
- .puts = iop480_serial_puts,
- .getc = iop480_serial_getc,
- .tstc = iop480_serial_tstc,
-};
-
-void iop480_serial_initialize(void)
-{
- serial_register(&iop480_serial_drv);
-}
-
-__weak struct serial_device *default_serial_console(void)
-{
- return &iop480_serial_drv;
-}
-#endif /* CONFIG_IOP480 */
generated by cgit v1.1 at 2024-07-20 16:40:42 +0000