patch-2.4.14 linux/arch/arm/mach-sa1100/simpad.c

• Lines: 181
• Date: Thu Oct 25 13:53:46 2001
• Orig file: v2.4.13/linux/arch/arm/mach-sa1100/simpad.c
• Orig date: Mon Aug 27 12:41:38 2001

diff -u --recursive --new-file v2.4.13/linux/arch/arm/mach-sa1100/simpad.c linux/arch/arm/mach-sa1100/simpad.c
@@ -8,6 +8,8 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/tty.h>
+#include <linux/proc_fs.h>
+#include <linux/string.h> 
 
 #include <asm/hardware.h>
 #include <asm/setup.h>
@@ -15,32 +17,46 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/mach/serial_sa1100.h>
+#include <linux/serial_core.h>
 
 #include "generic.h"
 
-void init_simpad_cs3()
+long cs3_shadow;
+
+static int __init simpad_init(void)
+{
+	PSPR = 0xc0008000;
+	GPDR &= ~GPIO_GPIO0;
+	cs3_shadow = (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON | 
+		      ENABLE_5V | RESET_SIMCARD);
+	*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
+	return 0;
+}
+
+__initcall(simpad_init);
+
+long get_cs3_shadow()
 {
-   cs3_shadow =(DISPLAY_ON | RS232_ON | PCMCIA_BUFF_DIS | RESET_SIMCARD);
-   printk("\nCall CS3 init:%x\n",cs3_shadow);
-   *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
-   cs3_shadow =(DISPLAY_ON| RS232_ON |RESET_SIMCARD);
+	return cs3_shadow;
 }
 
-void PCMCIA_setbit(int value)
+void set_cs3_bit(int value)
 {
-  cs3_shadow |= value;
+	cs3_shadow |= value;
+	*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
 }
 
-void PCMCIA_clearbit(int value)
+void clear_cs3_bit(int value)
 {
-  cs3_shadow &= ~value;
+	cs3_shadow &= ~value;
+	*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
 }
 
 static void __init
 fixup_simpad(struct machine_desc *desc, struct param_struct *params,
 		   char **cmdline, struct meminfo *mi)
 {
-#ifdef CONFIG_SA1100_SIMPAD_64MB
+#ifdef CONFIG_SA1100_SIMPAD_DRAM_64MB /* DRAM */
 	SET_BANK( 0, 0xc0000000, 64*1024*1024 );
 #else
 	SET_BANK( 0, 0xc0000000, 32*1024*1024 );
@@ -48,27 +64,109 @@
 	mi->nr_banks = 1;
 	ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
 	setup_ramdisk( 1, 0, 0, 8192 );
-	setup_initrd( __phys_to_virt(0xc0800000), 8*1024*1024 );
+	setup_initrd( __phys_to_virt(0xc0800000), 4*1024*1024 );
 }
 
 
 static struct map_desc simpad_io_desc[] __initdata = {
- /* virtual     physical    length      domain     r  w  c  b */
-  { 0xe8000000, 0x00000000, 0x02000000, DOMAIN_IO, 1, 1, 0, 0 }, /* Flash bank 0, neccessary for mtd */
-  { 0xf2800000, 0x4b800000, 0x00800000, DOMAIN_IO, 1, 1, 0, 0 }, /* MQ200 */
+  /* virtual	physical    length	domain	   r  w  c  b */
+  { 0xe8000000, 0x00000000, 0x02000000, DOMAIN_IO, 1, 1, 0, 0 }, 
+  { 0xf2800000, 0x4b800000, 0x00800000, DOMAIN_IO, 1, 1, 0, 0 }, /* MQ200 */  
   { 0xf1000000, 0x18000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* Paules CS3, write only */
   LAST_DESC
 };
 
+
+static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
+{
+	if (port->mapbase == (u_int)&Ser1UTCR0) {
+		if (state)
+			clear_cs3_bit(RS232_ON);
+		else
+			set_cs3_bit(RS232_ON);
+	}
+}
+
+static struct sa1100_port_fns simpad_port_fns __initdata = {
+	pm:	simpad_uart_pm,
+};
+
 static void __init simpad_map_io(void)
 {
 	sa1100_map_io();
 	iotable_init(simpad_io_desc);
 
+#ifndef CONFIG_SERIAL_SA1100_OLD
+	//It is only possible to register 3 UART in serial_sa1100.c
 	sa1100_register_uart(0, 3);
-        sa1100_register_uart(1, 1);
+	sa1100_register_uart(1, 1);
+#endif
+}
+
+#ifdef CONFIG_PROC_FS
+
+static char* name[]={
+  "VCC_5V_EN",
+  "VCC_3V_EN",
+  "EN1",
+  "EN0",
+  "DISPLAY_ON",
+  "PCMCIA_BUFF_DIS",
+  "MQ_RESET",
+  "PCMCIA_RESET",
+  "DECT_POWER_ON",
+  "IRDA_SD",
+  "RS232_ON",
+  "SD_MEDIAQ",
+  "LED2_ON",
+  "IRDA_MODE",
+  "ENABLE_5V",
+  "RESET_SIMCARD"
+};
+
+static int proc_cs3_read(char *page, char **start, off_t off,
+			  int count, int *eof, void *data)
+{
+	char *p = page;
+	int len, i;
+        
+	p += sprintf(p, "Chipselect3 : %x\n", cs3_shadow);
+	for (i = 0; i <= 15; i++) {
+		if(cs3_shadow & (1<<i)) {
+			p += sprintf(p, "%s\t: TRUE \n",name[i]);
+		} else
+			p += sprintf(p, "%s\t: FALSE \n",name[i]);
+	}
+	len = (p - page) - off;
+	if (len < 0)
+		len = 0;
+ 
+	*eof = (len <= count) ? 1 : 0;
+	*start = page + off;
+ 
+	return len;
 }
+ 
+ 
+static struct proc_dir_entry *proc_cs3;
+ 
+static int __init cs3_init(void)
+{
+	proc_cs3 = create_proc_entry("cs3", 0, 0);
+	if (proc_cs3)
+		proc_cs3->read_proc = proc_cs3_read;
+	return 0;
+}
+ 
+static int __exit cs3_exit(void)
+{
+	if (proc_cs3)
+		remove_proc_entry( "cs3", 0);
+	return 0;
+}		   
+__initcall(cs3_init);
 
+#endif // CONFIG_PROC_FS
 
 MACHINE_START(SIMPAD, "Simpad")
 	MAINTAINER("Juergen Messerer")