patch-2.4.19 linux-2.4.19/arch/arm/mach-sa1100/h3600.c

• Lines: 561
• Date: Fri Aug 2 17:39:42 2002
• Orig file: linux-2.4.18/arch/arm/mach-sa1100/h3600.c
• Orig date: Thu Oct 25 13:53:46 2001

diff -urN linux-2.4.18/arch/arm/mach-sa1100/h3600.c linux-2.4.19/arch/arm/mach-sa1100/h3600.c
@@ -1,8 +1,24 @@
 /*
- * linux/arch/arm/mach-sa1100/h3600.c
+ * Hardware definitions for Compaq iPAQ H3xxx Handheld Computers
+ *
+ * Copyright 2000,1 Compaq Computer Corporation.
+ *
+ * Use consistent with the GNU GPL is permitted,
+ * provided that this copyright notice is
+ * preserved in its entirety in all copies and derived works.
+ *
+ * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
+ * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
+ * FITNESS FOR ANY PARTICULAR PURPOSE.
+ *
+ * Author: Jamey Hicks.
+ *
+ * History:
+ *
+ * 2001-10-??	Andrew Christian   Added support for iPAQ H3800
+ *				   and abstracted EGPIO interface.
+ *
  */
-
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -17,84 +33,338 @@
 #include <asm/mach/map.h>
 #include <asm/mach/serial_sa1100.h>
 #include <linux/serial_core.h>
+#include <asm/arch/h3600_gpio.h>
 
 #include "generic.h"
 
-
 /*
- * Bitsy has extended, write-only memory-mapped GPIO's
+ * H3600 has extended, write-only memory-mapped GPIO's
+ * H3100 has 1/2 extended, write-only GPIO and 1/2 on
+ *	 regular GPIO lines.
+ * H3800 has memory-mapped GPIO through ASIC1 & 2
  */
 
-static int h3600_egpio = EGPIO_H3600_RS232_ON;
+#define H3600_EGPIO	(*(volatile unsigned int *)H3600_EGPIO_VIRT)
+
+static unsigned int h3600_egpio;
+
+/************************* H3100 *************************/
+
+#define H3100_DIRECT_EGPIO (GPIO_H3100_BT_ON	  \
+			  | GPIO_H3100_GPIO3	  \
+			  | GPIO_H3100_QMUTE	  \
+			  | GPIO_H3100_LCD_3V_ON  \
+			  | GPIO_H3100_AUD_ON	  \
+			  | GPIO_H3100_AUD_PWR_ON \
+			  | GPIO_H3100_IR_ON	  \
+			  | GPIO_H3100_IR_FSEL)
+
+static void h3100_init_egpio( void )
+{
+	GPDR |= H3100_DIRECT_EGPIO;
+	GPCR = H3100_DIRECT_EGPIO;   /* Initially all off */
+
+	/* Older bootldrs put GPIO2-9 in alternate mode on the
+	   assumption that they are used for video */
+	GAFR &= ~H3100_DIRECT_EGPIO;
+
+	h3600_egpio = EGPIO_H3600_RS232_ON;
+	H3600_EGPIO = h3600_egpio;
+}
+
+static void h3100_control_egpio( enum ipaq_egpio_type x, int setp )
+{
+	unsigned int egpio = 0;
+	long	     gpio = 0;
+	unsigned long flags;
+
+	switch (x) {
+	case IPAQ_EGPIO_LCD_ON:
+		egpio |= EGPIO_H3600_LCD_ON;
+		gpio  |= GPIO_H3100_LCD_3V_ON;
+		break;
+	case IPAQ_EGPIO_CODEC_NRESET:
+		egpio |= EGPIO_H3600_CODEC_NRESET;
+		break;
+	case IPAQ_EGPIO_AUDIO_ON:
+		gpio |= GPIO_H3100_AUD_PWR_ON
+			| GPIO_H3100_AUD_ON;
+		break;
+	case IPAQ_EGPIO_QMUTE:
+		gpio |= GPIO_H3100_QMUTE;
+		break;
+	case IPAQ_EGPIO_OPT_NVRAM_ON:
+		egpio |= EGPIO_H3600_OPT_NVRAM_ON;
+		break;
+	case IPAQ_EGPIO_OPT_ON:
+		egpio |= EGPIO_H3600_OPT_ON;
+		break;
+	case IPAQ_EGPIO_CARD_RESET:
+		egpio |= EGPIO_H3600_CARD_RESET;
+		break;
+	case IPAQ_EGPIO_OPT_RESET:
+		egpio |= EGPIO_H3600_OPT_RESET;
+		break;
+	case IPAQ_EGPIO_IR_ON:
+		gpio |= GPIO_H3100_IR_ON;
+		break;
+	case IPAQ_EGPIO_IR_FSEL:
+		gpio |= GPIO_H3100_IR_FSEL;
+		break;
+	case IPAQ_EGPIO_RS232_ON:
+		egpio |= EGPIO_H3600_RS232_ON;
+		break;
+	case IPAQ_EGPIO_VPP_ON:
+		egpio |= EGPIO_H3600_VPP_ON;
+		break;
+	}
+
+	local_irq_save(flags);
+	if ( setp ) {
+		h3600_egpio |= egpio;
+		GPSR = gpio;
+	} else {
+		h3600_egpio &= ~egpio;
+		GPCR = gpio;
+	}
+	H3600_EGPIO = h3600_egpio;
+	local_irq_restore(flags);
+
+	/*
+	if ( x != IPAQ_EGPIO_VPP_ON ) {
+		printk(__FUNCTION__ " : type=%d (%s) gpio=0x%x (0x%x) egpio=0x%x (0x%x) setp=%d\n",
+		       x, egpio_names[x], GPLR, gpio, h3600_egpio, egpio, setp );
+	}
+	*/
+}
+
+static unsigned long h3100_read_egpio( void )
+{
+	return h3600_egpio;
+}
+
+static struct ipaq_model_ops h3100_model_ops __initdata = {
+	model	     : IPAQ_H3100,
+	generic_name : "3100",
+	initialize   : h3100_init_egpio,
+	control      : h3100_control_egpio,
+	read	     : h3100_read_egpio
+};
 
-void init_h3600_egpio(void)
+
+/************************* H3600 *************************/
+
+static void h3600_init_egpio( void )
 {
-#ifdef CONFIG_IPAQ_H3100
-	int h3100_controls = (GPIO_H3100_BT_ON
-			      | GPIO_H3100_QMUTE
-			      | GPIO_H3100_LCD_3V_ON 
-			      | GPIO_H3100_AUD_ON
-			      | GPIO_H3100_AUD_PWR_ON
-			      | GPIO_H3100_IR_ON
-			      | GPIO_H3100_IR_FSEL);
-	GPDR |= h3100_controls;
-	GPCR = h3100_controls;
-	GAFR = GPIO_SSP_CLK;
-#endif
-}
-
-void clr_h3600_egpio(unsigned long x)
-{
-#ifdef CONFIG_IPAQ_H3100
-	unsigned long gpcr = 0;
-	if (x&EGPIO_H3600_QMUTE)
-		gpcr |= GPIO_H3100_QMUTE;
-	if (x&EGPIO_H3600_LCD_ON)
-		gpcr |= GPIO_H3100_LCD_3V_ON;
-	if (x&EGPIO_H3600_AUD_AMP_ON)
-		gpcr |= GPIO_H3100_AUD_ON;
-	if (x&EGPIO_H3600_AUD_PWR_ON)
-		gpcr |= GPIO_H3100_AUD_PWR_ON;
-	if (x&EGPIO_H3600_IR_ON)
-		gpcr |= GPIO_H3100_IR_ON;
-	if (x&EGPIO_H3600_IR_FSEL)
-		gpcr |= GPIO_H3100_IR_FSEL;
-	GPCR = gpcr;
-#endif
-	h3600_egpio &= ~x;
+	h3600_egpio = EGPIO_H3600_RS232_ON;
 	H3600_EGPIO = h3600_egpio;
 }
 
-void set_h3600_egpio(unsigned long x)
+static void h3600_control_egpio( enum ipaq_egpio_type x, int setp )
 {
-#ifdef CONFIG_IPAQ_H3100
-	unsigned long gpsr = 0;
-	if (x&EGPIO_H3600_QMUTE)
-		gpsr |= GPIO_H3100_QMUTE;
-	if (x&EGPIO_H3600_LCD_ON)
-		gpsr |= GPIO_H3100_LCD_3V_ON;
-	if (x&EGPIO_H3600_AUD_AMP_ON)
-		gpsr |= GPIO_H3100_AUD_ON;
-	if (x&EGPIO_H3600_AUD_PWR_ON)
-		gpsr |= GPIO_H3100_AUD_PWR_ON;
-	if (x&EGPIO_H3600_IR_ON)
-		gpsr |= GPIO_H3100_IR_ON;
-	if (x&EGPIO_H3600_IR_FSEL)
-		gpsr |= GPIO_H3100_IR_FSEL;
-	GPSR = gpsr;
-#endif
-	h3600_egpio |= x;
+	unsigned int egpio = 0;
+	unsigned long flags;
+
+	switch (x) {
+	case IPAQ_EGPIO_LCD_ON:
+		egpio |= EGPIO_H3600_LCD_ON |
+			 EGPIO_H3600_LCD_PCI |
+			 EGPIO_H3600_LCD_5V_ON |
+			 EGPIO_H3600_LVDD_ON;
+		break;
+	case IPAQ_EGPIO_CODEC_NRESET:
+		egpio |= EGPIO_H3600_CODEC_NRESET;
+		break;
+	case IPAQ_EGPIO_AUDIO_ON:
+		egpio |= EGPIO_H3600_AUD_AMP_ON |
+			EGPIO_H3600_AUD_PWR_ON;
+		break;
+	case IPAQ_EGPIO_QMUTE:
+		egpio |= EGPIO_H3600_QMUTE;
+		break;
+	case IPAQ_EGPIO_OPT_NVRAM_ON:
+		egpio |= EGPIO_H3600_OPT_NVRAM_ON;
+		break;
+	case IPAQ_EGPIO_OPT_ON:
+		egpio |= EGPIO_H3600_OPT_ON;
+		break;
+	case IPAQ_EGPIO_CARD_RESET:
+		egpio |= EGPIO_H3600_CARD_RESET;
+		break;
+	case IPAQ_EGPIO_OPT_RESET:
+		egpio |= EGPIO_H3600_OPT_RESET;
+		break;
+	case IPAQ_EGPIO_IR_ON:
+		egpio |= EGPIO_H3600_IR_ON;
+		break;
+	case IPAQ_EGPIO_IR_FSEL:
+		egpio |= EGPIO_H3600_IR_FSEL;
+		break;
+	case IPAQ_EGPIO_RS232_ON:
+		egpio |= EGPIO_H3600_RS232_ON;
+		break;
+	case IPAQ_EGPIO_VPP_ON:
+		egpio |= EGPIO_H3600_VPP_ON;
+		break;
+	}
+
+	local_irq_save(flags);
+	if ( setp )
+		h3600_egpio |= egpio;
+	else
+		h3600_egpio &= ~egpio;
 	H3600_EGPIO = h3600_egpio;
+	local_irq_restore(flags);
+}
+
+static unsigned long h3600_read_egpio( void )
+{
+	return h3600_egpio;
+}
+
+static struct ipaq_model_ops h3600_model_ops __initdata = {
+	model	     : IPAQ_H3600,
+	generic_name : "3600",
+	initialize   : h3600_init_egpio,
+	control      : h3600_control_egpio,
+	read	     : h3600_read_egpio
+};
+
+/************************* H3800 *************************/
+
+#define ASIC1_OUTPUTS	 0x7fff   /* First 15 bits are used */
+
+static unsigned int h3800_asic1_gpio;
+static unsigned int h3800_asic2_gpio;
+
+static void h3800_init_egpio(void)
+{
+	/* Set up ASIC #1 */
+	H3800_ASIC1_GPIO_Direction    = ASIC1_OUTPUTS;		  /* All outputs */
+	H3800_ASIC1_GPIO_Mask	      = ASIC1_OUTPUTS;		  /* No interrupts */
+	H3800_ASIC1_GPIO_SleepMask    = ASIC1_OUTPUTS;
+	H3800_ASIC1_GPIO_SleepDir     = ASIC1_OUTPUTS;
+	H3800_ASIC1_GPIO_SleepOut     = GPIO_H3800_ASIC1_EAR_ON_N;
+	H3800_ASIC1_GPIO_BattFaultDir = ASIC1_OUTPUTS;
+	H3800_ASIC1_GPIO_BattFaultOut = GPIO_H3800_ASIC1_EAR_ON_N;
+
+	h3800_asic1_gpio = GPIO_H3800_ASIC1_IR_ON_N   /* TODO: Check IR level */
+		| GPIO_H3800_ASIC1_RS232_ON
+		| GPIO_H3800_ASIC1_EAR_ON_N;
+
+	H3800_ASIC1_GPIO_Out = h3800_asic1_gpio;
+
+	/* Set up ASIC #2 */
+	H3800_ASIC2_GPIO_Direction = GPIO_H3800_ASIC2_PEN_IRQ
+		| GPIO_H3800_ASIC2_SD_DETECT
+		| GPIO_H3800_ASIC2_EAR_IN_N
+		| GPIO_H3800_ASIC2_USB_DETECT_N
+		| GPIO_H3800_ASIC2_SD_CON_SLT;
+
+	h3800_asic2_gpio = GPIO_H3800_ASIC2_IN_Y1_N | GPIO_H3800_ASIC2_IN_X1_N;
+	H3800_ASIC2_GPIO_Data	      = h3800_asic2_gpio;
+	H3800_ASIC2_GPIO_BattFaultOut = h3800_asic2_gpio;
+
+	/* TODO : Set sleep states & battery fault states */
+
+	/* Clear VPP Enable */
+	H3800_ASIC1_FlashWP_VPP_ON = 0;
+}
+
+static void h3800_control_egpio( enum ipaq_egpio_type x, int setp )
+{
+	unsigned int set_asic1_egpio = 0;
+	unsigned int clear_asic1_egpio = 0;
+	unsigned long flags;
+
+	switch (x) {
+	case IPAQ_EGPIO_LCD_ON:
+		set_asic1_egpio |= GPIO_H3800_ASIC1_LCD_5V_ON
+			| GPIO_H3800_ASIC1_LCD_ON
+			| GPIO_H3800_ASIC1_LCD_PCI
+			| GPIO_H3800_ASIC1_VGH_ON
+			| GPIO_H3800_ASIC1_VGL_ON;
+		break;
+	case IPAQ_EGPIO_CODEC_NRESET:
+		break;
+	case IPAQ_EGPIO_AUDIO_ON:
+		break;
+	case IPAQ_EGPIO_QMUTE:
+		break;
+	case IPAQ_EGPIO_OPT_NVRAM_ON:
+		break;
+	case IPAQ_EGPIO_OPT_ON:
+		break;
+	case IPAQ_EGPIO_CARD_RESET:
+		break;
+	case IPAQ_EGPIO_OPT_RESET:
+		break;
+	case IPAQ_EGPIO_IR_ON:
+		clear_asic1_egpio |= GPIO_H3800_ASIC1_IR_ON_N;	 /* TODO : This is backwards? */
+		break;
+	case IPAQ_EGPIO_IR_FSEL:
+		break;
+	case IPAQ_EGPIO_RS232_ON:
+		set_asic1_egpio |= GPIO_H3800_ASIC1_RS232_ON;
+		break;
+	case IPAQ_EGPIO_VPP_ON:
+		H3800_ASIC1_FlashWP_VPP_ON = setp;
+		break;
+	}
+
+	local_irq_save(flags);
+	if ( setp ) {
+		h3800_asic1_gpio |= set_asic1_egpio;
+		h3800_asic1_gpio &= ~clear_asic1_egpio;
+	}
+	else {
+		h3800_asic1_gpio &= ~set_asic1_egpio;
+		h3800_asic1_gpio |= clear_asic1_egpio;
+	}
+	H3800_ASIC1_GPIO_Out = h3800_asic1_gpio;
+	local_irq_restore(flags);
+}
+
+static unsigned long h3800_read_egpio( void )
+{
+	return h3800_asic1_gpio | (h3800_asic2_gpio << 16);
 }
 
-EXPORT_SYMBOL(clr_h3600_egpio);
-EXPORT_SYMBOL(set_h3600_egpio);
+static struct ipaq_model_ops h3800_model_ops __initdata = {
+	model	     : IPAQ_H3800,
+	generic_name : "3800",
+	initialize   : h3800_init_egpio,
+	control      : h3800_control_egpio,
+	read	     : h3800_read_egpio
+};
 
 
 /*
- * Low-level UART features.
- *
- * Note that RTS, CTS and DCD are all active low.
+ * Use command line argument to choose between ipaq handheld model numbers
+ */
+
+struct ipaq_model_ops ipaq_model_ops;
+EXPORT_SYMBOL(ipaq_model_ops);
+
+static int __init h3600_init_model_ops(void)
+{
+	if (machine_is_h3xxx()) {
+		if (machine_is_h3100()) {
+			ipaq_model_ops = h3100_model_ops;
+		} else if (machine_is_h3600()) {
+			ipaq_model_ops = h3600_model_ops;
+		} else if (machine_is_h3800()) {
+			ipaq_model_ops = h3800_model_ops;
+		}
+		init_h3600_egpio();
+	}
+	return 0;
+}
+
+__initcall(h3600_init_model_ops);
+
+/*
+ * low-level UART features
  */
 
 static void h3600_uart_set_mctrl(struct uart_port *port, u_int mctrl)
@@ -107,9 +377,9 @@
 	}
 }
 
-static int h3600_uart_get_mctrl(struct uart_port *port)
+static u_int h3600_uart_get_mctrl(struct uart_port *port)
 {
-	int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
+	u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
 
 	if (port->mapbase == _Ser3UTCR0) {
 		int gplr = GPLR;
@@ -139,18 +409,28 @@
 static void h3600_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
 {
 	if (port->mapbase == _Ser2UTCR0) {
-		if (state == 0) {
-			set_h3600_egpio(EGPIO_H3600_IR_ON);
-		} else {
-			clr_h3600_egpio(EGPIO_H3600_IR_ON);
-		}
+		assign_h3600_egpio( IPAQ_EGPIO_IR_ON, !state );
 	} else if (port->mapbase == _Ser3UTCR0) {
-		if (state == 0) {
-			set_h3600_egpio(EGPIO_H3600_RS232_ON);
-		} else {
-			clr_h3600_egpio(EGPIO_H3600_RS232_ON);
-		}
+		assign_h3600_egpio( IPAQ_EGPIO_RS232_ON, !state );
+	}
+}
+
+/*
+ * Enable/Disable wake up events for this serial port.
+ * Obviously, we only support this on the normal COM port.
+ */
+static int h3600_uart_set_wake(struct uart_port *port, u_int enable)
+{
+	int err = -EINVAL;
+
+	if (port->mapbase == _Ser3UTCR0) {
+		if (enable)
+			PWER |= PWER_GPIO23 | PWER_GPIO25 ; /* DCD and CTS */
+		else
+			PWER &= ~(PWER_GPIO23 | PWER_GPIO25); /* DCD and CTS */
+		err = 0;
 	}
+	return err;
 }
 
 static int h3600_uart_open(struct uart_port *port, struct uart_info *info)
@@ -163,8 +443,6 @@
 		Ser2HSSR0 = HSSR0_EIF | HSSR0_TUR |
 			    HSSR0_RAB | HSSR0_FRE;
 	} else if (port->mapbase == _Ser3UTCR0) {
-		GPDR &= ~(GPIO_H3600_COM_DCD|GPIO_H3600_COM_CTS);
-		GPDR |= GPIO_H3600_COM_RTS;
 		set_GPIO_IRQ_edge(GPIO_H3600_COM_DCD|GPIO_H3600_COM_CTS,
 				  GPIO_BOTH_EDGES);
 
@@ -193,16 +471,17 @@
 	set_mctrl:	h3600_uart_set_mctrl,
 	get_mctrl:	h3600_uart_get_mctrl,
 	pm:		h3600_uart_pm,
+	set_wake:	h3600_uart_set_wake,
 	open:		h3600_uart_open,
 	close:		h3600_uart_close,
 };
 
 static struct map_desc h3600_io_desc[] __initdata = {
- /* virtual     physical    length      domain     r  w  c  b */
-  { 0xe8000000, 0x00000000, 0x02000000, DOMAIN_IO, 1, 1, 0, 0 }, /* Flash bank 0 */
-  { 0xf0000000, 0x49000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* EGPIO 0 */
-  { 0xf1000000, 0x10000000, 0x02800000, DOMAIN_IO, 1, 1, 0, 0 }, /* static memory bank 2 */
-  { 0xf3800000, 0x40000000, 0x00800000, DOMAIN_IO, 1, 1, 0, 0 }, /* static memory bank 4 */
+ /* virtual	       physical    length      domain	  r  w	c  b */
+  { 0xe8000000,        0x00000000, 0x02000000, DOMAIN_IO, 0, 1, 0, 0 }, /* Flash bank 0 	 CS#0 */
+  { H3600_EGPIO_VIRT,  0x49000000, 0x01000000, DOMAIN_IO, 0, 1, 0, 0 }, /* EGPIO 0		 CS#5 */
+  { H3600_BANK_2_VIRT, 0x10000000, 0x02800000, DOMAIN_IO, 0, 1, 0, 0 }, /* static memory bank 2  CS#2 */
+  { H3600_BANK_4_VIRT, 0x40000000, 0x00800000, DOMAIN_IO, 0, 1, 0, 0 }, /* static memory bank 4  CS#4 */
   LAST_DESC
 };
 
@@ -214,13 +493,19 @@
 	sa1100_register_uart_fns(&h3600_port_fns);
 	sa1100_register_uart(0, 3);
 	sa1100_register_uart(1, 1); /* isn't this one driven elsewhere? */
-	init_h3600_egpio();
 
 	/*
-	 * Default GPIO settings.
+	 * Default GPIO settings.  Should be set by machine
 	 */
 	GPCR = 0x0fffffff;
-	GPDR = 0x0401f3fc;
+//	GPDR = 0x0401f3fc;
+	GPDR = GPIO_H3600_COM_RTS  | GPIO_H3600_L3_CLOCK |
+	       GPIO_H3600_L3_MODE  | GPIO_H3600_L3_DATA  |
+	       GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 |
+	       GPIO_LDD15 | GPIO_LDD14 | GPIO_LDD13 | GPIO_LDD12 |
+	       GPIO_LDD11 | GPIO_LDD10 | GPIO_LDD9  | GPIO_LDD8;
+
+	init_h3600_egpio();
 
 	/*
 	 * Ensure those pins are outputs and driving low.
@@ -230,11 +515,24 @@
 
 	/* Configure suspend conditions */
 	PGSR = 0;
-	PWER = 0x1 | (1 << 31);
-	PCFR = PCFR_OPDE | PCFR_FP | PCFR_FS;
+	PWER = PWER_GPIO0 | PWER_RTC;
+	PCFR = PCFR_OPDE;
+	PSDR = 0;
 }
 
-MACHINE_START(H3600, "Compaq iPAQ")
+MACHINE_START(H3600, "Compaq iPAQ H3600")
+	BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
+	BOOT_PARAMS(0xc0000100)
+	MAPIO(h3600_map_io)
+	INITIRQ(sa1100_init_irq)
+MACHINE_END
+MACHINE_START(H3100, "Compaq iPAQ H3100")
+	BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
+	BOOT_PARAMS(0xc0000100)
+	MAPIO(h3600_map_io)
+	INITIRQ(sa1100_init_irq)
+MACHINE_END
+MACHINE_START(H3800, "Compaq iPAQ H3800")
 	BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
 	BOOT_PARAMS(0xc0000100)
 	MAPIO(h3600_map_io)