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[Linux-mips-commits]CVS: linux/arch/mips/vr41xx/vr4111/casio-e15 gdb.c,NONE,1.1 Makefile,1.2,1.3 setup.c,1.3,1.4
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From: Leblanc f. <fle...@us...> - 2002-03-22 10:22:48
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Update of /cvsroot/linux-mips/linux/arch/mips/vr41xx/vr4111/casio-e15
In directory usw-pr-cvs1:/tmp/cvs-serv6638/arch/mips/vr41xx/vr4111/casio-e15
Modified Files:
Makefile setup.c
Added Files:
gdb.c
Log Message:
Casio E15 power on/off improvement & GPIO Documentation added.
--- NEW FILE: gdb.c ---
/*
* arch/mips/vr41xx/vr4111/casio-e15/gdb.c
* provide fonctions for gdb use.
*
* Copyright (C) 2002 Francois Leblanc <fra...@ce...>
*
* 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.
*
*/
#include <linux/config.h>
#include <linux/types.h>
#include <linux/serial.h>
#include <linux/serial_reg.h>
#include <asm/vr41xx.h>
/*
* This is the interface to the remote debugger stub.
* I've put that here to be able to control the serial
* device more directly.
*
* We're a little paranoid with the barrier()s, just in
* case the compiler tries to be too cute.
*/
static int initialized = 0;
void DbgInitSerial(void)
{
unsigned char dummy;
/* Ensure that serial is set to RS-232C (not IrDA) */
*VR41XX_SIUIRSEL &= ~VR41XX_SIUIRSEL_SIRSEL;
/* Supply clocks to all serial units */
vr41xx_clock_supply(VR41XX_CMUCLKMSK_MSKSIU);
vr41xx_clock_supply(VR41XX_CMUCLKMSK_MSKDSIU);
vr41xx_clock_supply(VR41XX_CMUCLKMSK_MSKSSIU);
#if 0
/* turn on the clocks to the serial port */
serial_power_on(0);
#endif
*VR41XX_SIULC = UART_LCR_DLAB; /* prepare to set baud rate */
barrier();
*VR41XX_SIUDLL = 10; /* set 120 here for 9600 */
*VR41XX_SIUDLM = 0; /* hardcoded: set to 115200 */
barrier();
*VR41XX_SIULC = UART_LCR_WLEN8; /* clear DLAB, set up for 8N1 */
barrier();
*VR41XX_SIUIE = 0; /* disable interrupts */
*VR41XX_SIUFC = UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT;
#ifdef CONFIG_PM
//fcr_shadow[0] = 0;
#endif
*VR41XX_SIUMC = UART_MCR_RTS | UART_MCR_DTR; /* set RTS and DTR */
dummy = *VR41XX_SIURB; /* clear any pending ints */
dummy = *VR41XX_SIUMS;
dummy = *VR41XX_SIUIID;
barrier();
/* clear the receive buffer (and finish clearing ints) */
while ( *VR41XX_SIULS & UART_LSR_DR )
dummy = *VR41XX_SIURB;
}
int putDebugChar(unsigned char c)
{
if (!initialized) { /* need to init device first */
DbgInitSerial();
initialized = 1;
}
while ( !(*VR41XX_SIULS & UART_LSR_THRE) ) ;
barrier();
*VR41XX_SIUTH = c;
return 1;
}
char getDebugChar(void)
{
if (!initialized) { /* need to init device first */
DbgInitSerial();
initialized = 1;
}
while ( !(*VR41XX_SIULS & UART_LSR_DR) ) ;
barrier();
return(*VR41XX_SIURB);
}
Index: Makefile
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/vr41xx/vr4111/casio-e15/Makefile,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -d -r1.2 -r1.3
--- Makefile 19 Mar 2002 14:22:21 -0000 1.2
+++ Makefile 22 Mar 2002 10:22:43 -0000 1.3
@@ -20,6 +20,7 @@
all: casio-e15.o
obj-y += setup.o prom.o
+obj-$(CONFIG_REMOTE_DEBUG) += gdb.o
include $(TOPDIR)/Rules.make
Index: setup.c
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/vr41xx/vr4111/casio-e15/setup.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- setup.c 19 Mar 2002 14:22:21 -0000 1.3
+++ setup.c 22 Mar 2002 10:22:43 -0000 1.4
@@ -1,38 +1,40 @@
/*
- * linux/arch/mips/vr4111/casio/setup.c
- *
- * VR41xx setup routines
- *
- * Copyright (C) 1999 Bradley D. LaRonde
- * Copyright (C) 1999, 2000 Michael Klar
+ * FILE NAME
+ * arch/mips/vr41xx/vr4111/casio-e15/setup.c
*
- * Copyright 2001 MontaVista Software Inc.
- * Author: js...@mv... or js...@ju...
+ * BRIEF MODULE DESCRIPTION
+ * Setup for the CASIO CASSIOPEIA E-15.
*
- * Copyright 2001 Jim Paris <ji...@jt...>
+ * Copyright 2002 Yoichi Yuasa
+ * yu...@hh...
*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
+ * 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.
*
*/
+/*
+ * Changes:
+ * - Francois Leblanc <fra...@ce...>
+ * Copy from casio-e55/setup.c an update to casio-e15.
+ *
+ */
#include <linux/config.h>
#include <linux/init.h>
#include <linux/console.h>
-#ifdef CONFIG_IDE
#include <linux/ide.h>
-#endif
#include <linux/ioport.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <asm/vr41xx.h>
#include <asm/vr41xx/e15.h>
-#ifdef CONFIG_PM_SUSPEND_WAKEUP
-#include <asm/power.h>
-#endif
extern void vr41xx_xblink_led(unsigned int times, unsigned int time_on, unsigned int time_off);
+extern void vr4111_wait(void);
+extern void vr4111_hibernate(void);
+extern void vr4111_suspend(void);
#ifdef CONFIG_BLK_DEV_INITRD
extern unsigned long initrd_start, initrd_end;
@@ -50,6 +52,94 @@
{
}
+#ifdef CONFIG_PM_SUSPEND_WAKEUP
+void vr41xx_board_hibernate(void)
+{
+ vr4111_hibernate();
+}
+#endif
+#ifdef CONFIG_PM_POWERED_SUSPEND
+void vr41xx_board_suspend(void)
+{
+ vr4111_suspend();
+}
+#endif
+#ifdef CONFIG_PM_STANDBY
+void vr41xx_board_standby(void)
+{
+ vr4111_wait();
+}
+#endif
+
+#ifdef CONFIG_PM_SUSPEND_WAKEUP
+#include <asm/vr41xx-platdep.h>
+#include <asm/gdb-stub.h>
+
+extern void breakpoint(void);
+extern void kernel_entry(void);
+extern void DbgInitSerial(void);
+
+// Put contents of WINCE_SIGNATURE_CHECK1 & 2 at
+// WINCE_SIGNATURE_ADD1 & 2 set WINCE_RETURN_ADD
+// to kernel_entry for go back to linux.
+
+#define WINCE_SIGNATURE_ADD1 ((unsigned int *)0xa0006000)
+#define WINCE_SIGNATURE_ADD2 ((unsigned int *)0xa0006004)
+#define WINCE_RETURN_ADD ((unsigned int *)0xa0006008)
+#define WINCE_SIGNATURE_CHECK1 ((unsigned int *)0x9f00048c)
+#define WINCE_SIGNATURE_CHECK2 ((unsigned int *)0x9f000490)
+
+static unsigned int wince_signature_old1;
+static unsigned int wince_signature_old2;
+static unsigned int wince_return_old;
+
+static asmlinkage void casio_e15_wakeup(void)
+{
+ write_32bit_cp0_register(CP0_STATUS, ST0_CU0);
+
+ // Let the CPU know we are alive by resetting HAL timer.
+ *VR41XX_PMUCNTREG |= 0x4;
+
+ // Restore context, necessary if do_wakeup scratch
+ // the next reset call should restore wince internal
+ // since memory signature is corrupted !
+ *WINCE_SIGNATURE_ADD1 = wince_signature_old1;
+ *WINCE_SIGNATURE_ADD2 = wince_signature_old2;
+ *WINCE_RETURN_ADD = wince_return_old;
+
+#ifdef CONFIG_REMOTE_DEBUG
+ //re-init serial
+ set_debug_traps();
+ DbgInitSerial();
+#endif
+
+ //try restore screen view
+ gpiolcd_lcdpower(1);
+
+#ifdef CONFIG_VR41XX_LED
+ vr41xx_xblink_led(2, 12, 3);
+#endif
+
+ // restart kernel
+ kernel_entry();
+}
+
+void vr41xx_extend_hibernate(void)
+{
+ // wince E15 signature
+ wince_signature_old1 = *WINCE_SIGNATURE_ADD1;
+ wince_signature_old2 = *WINCE_SIGNATURE_ADD2;
+ wince_return_old = *WINCE_RETURN_ADD;
+
+ *WINCE_SIGNATURE_ADD1 = *WINCE_SIGNATURE_CHECK1;
+ *WINCE_SIGNATURE_ADD2 = *WINCE_SIGNATURE_CHECK2;
+ *WINCE_RETURN_ADD = casio_e15_wakeup;
+
+ printk (KERN_NOTICE "Hibernate signature set, ready for wake up !\n");
+
+}
+#endif /* end of CONFIG_PM_SUSPEND_WAKEUP */
+
void __init nec_vr41xx_setup(void)
{
set_io_port_base(IO_PORT_BASE);
@@ -88,6 +178,7 @@
init_MUTEX(&vr41xx_dma_sem);
#ifdef CONFIG_VR41XX_LED
- vr41xx_xblink_led(4, 16, 4);
+ vr41xx_xblink_led(2, 12, 3);
#endif
}
+
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