---

yaml --- r: 43414 b: refs/heads/master c: 5283304 h: refs/heads/master v: v3
git-mirror · Dec 1, 2006 · 87319be · 87319be
1 parent f22ca1a
commit 87319be
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Showing 10 changed files with 109 additions and 339 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2dc20a51dc1e2da6eae1182cfe4c4835fca26017
+refs/heads/master: 5283304bdcb4af47c46280ac21100d037d31fcf0
diff --git a/trunk/arch/arm/configs/ep93xx_defconfig b/trunk/arch/arm/configs/ep93xx_defconfig
@@ -125,6 +125,7 @@ CONFIG_CRUNCH=y
 #
 # EP93xx Platforms
 #
+CONFIG_MACH_ADSSPHERE=y
 CONFIG_MACH_EDB9302=y
 CONFIG_MACH_EDB9312=y
 CONFIG_MACH_EDB9315=y

diff --git a/trunk/arch/arm/mach-ep93xx/Kconfig b/trunk/arch/arm/mach-ep93xx/Kconfig
@@ -9,6 +9,12 @@ config CRUNCH
 
 comment "EP93xx Platforms"
 
+config MACH_ADSSPHERE
+	bool "Support ADS Sphere"
+	help
+	  Say 'Y' here if you want your kernel to support the ADS
+	  Sphere board.
+
 config MACH_EDB9302
 	bool "Support Cirrus Logic EDB9302"
 	help

diff --git a/trunk/arch/arm/mach-ep93xx/Makefile b/trunk/arch/arm/mach-ep93xx/Makefile
@@ -6,6 +6,7 @@ obj-m			:=
 obj-n			:=
 obj-			:=
 
+obj-$(CONFIG_MACH_ADSSPHERE)	+= adssphere.o
 obj-$(CONFIG_MACH_EDB9302)	+= edb9302.o
 obj-$(CONFIG_MACH_EDB9312)	+= edb9312.o
 obj-$(CONFIG_MACH_EDB9315)	+= edb9315.o

diff --git a/trunk/arch/arm/mach-ep93xx/adssphere.c b/trunk/arch/arm/mach-ep93xx/adssphere.c
@@ -0,0 +1,91 @@
+/*
+ * arch/arm/mach-ep93xx/adssphere.c
+ * ADS Sphere support.
+ *
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+static struct physmap_flash_data adssphere_flash_data = {
+	.width		= 4,
+};
+
+static struct resource adssphere_flash_resource = {
+	.start		= 0x60000000,
+	.end		= 0x61ffffff,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device adssphere_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &adssphere_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &adssphere_flash_resource,
+};
+
+static struct ep93xx_eth_data adssphere_eth_data = {
+	.phy_id		= 1,
+};
+
+static struct resource adssphere_eth_resource[] = {
+	{
+		.start	= EP93XX_ETHERNET_PHYS_BASE,
+		.end	= EP93XX_ETHERNET_PHYS_BASE + 0xffff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_EP93XX_ETHERNET,
+		.end	= IRQ_EP93XX_ETHERNET,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device adssphere_eth_device = {
+	.name		= "ep93xx-eth",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &adssphere_eth_data,
+	},
+	.num_resources	= 2,
+	.resource	= adssphere_eth_resource,
+};
+
+static void __init adssphere_init_machine(void)
+{
+	ep93xx_init_devices();
+	platform_device_register(&adssphere_flash);
+
+	memcpy(adssphere_eth_data.dev_addr,
+		(void *)(EP93XX_ETHERNET_BASE + 0x50), 6);
+	platform_device_register(&adssphere_eth_device);
+}
+
+MACHINE_START(ADSSPHERE, "ADS Sphere board")
+	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
+	.phys_io	= EP93XX_APB_PHYS_BASE,
+	.io_pg_offst	= ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
+	.boot_params	= 0x00000100,
+	.map_io		= ep93xx_map_io,
+	.init_irq	= ep93xx_init_irq,
+	.timer		= &ep93xx_timer,
+	.init_machine	= adssphere_init_machine,
+MACHINE_END
diff --git a/trunk/arch/arm/mach-pxa/generic.c b/trunk/arch/arm/mach-pxa/generic.c
@@ -25,10 +25,6 @@
 #include <linux/pm.h>
 #include <linux/string.h>
 
-#include <linux/sched.h>
-#include <asm/cnt32_to_63.h>
-#include <asm/div64.h>
-
 #include <asm/hardware.h>
 #include <asm/irq.h>
 #include <asm/system.h>
@@ -44,62 +40,6 @@
 
 #include "generic.h"
 
-/*
- * This is the PXA2xx sched_clock implementation. This has a resolution
- * of at least 308ns and a maximum value that depends on the value of
- * CLOCK_TICK_RATE.
- *
- * The return value is guaranteed to be monotonic in that range as
- * long as there is always less than 582 seconds between successive
- * calls to this function.
- */
-unsigned long long sched_clock(void)
-{
-	unsigned long long v = cnt32_to_63(OSCR);
-	/* Note: top bit ov v needs cleared unless multiplier is even. */
-
-#if	CLOCK_TICK_RATE == 3686400
-	/* 1E9 / 3686400 => 78125 / 288, max value = 32025597s (370 days). */
-	/* The <<1 is used to get rid of tick.hi top bit */
-	v *= 78125<<1;
-	do_div(v, 288<<1);
-#elif	CLOCK_TICK_RATE == 3250000
-	/* 1E9 / 3250000 => 4000 / 13, max value = 709490156s (8211 days) */
-	v *= 4000;
-	do_div(v, 13);
-#elif	CLOCK_TICK_RATE == 3249600
-	/* 1E9 / 3249600 => 625000 / 2031, max value = 4541295s (52 days) */
-	v *= 625000;
-	do_div(v, 2031);
-#else
-#warning "consider fixing sched_clock for your value of CLOCK_TICK_RATE"
-	/*
-	 * 96-bit math to perform tick * NSEC_PER_SEC / CLOCK_TICK_RATE for
-	 * any value of CLOCK_TICK_RATE. Max value is in the 80 thousand
-	 * years range which is nice, but with higher computation cost.
-	 */
-	{
-		union {
-			unsigned long long val;
-			struct { unsigned long lo, hi; };
-		} x;
-		unsigned long long y;
-
-		x.val = v;
-		x.hi &= 0x7fffffff;
-		y = (unsigned long long)x.lo * NSEC_PER_SEC;
-		x.lo = y;
-		y = (y >> 32) + (unsigned long long)x.hi * NSEC_PER_SEC;
-		x.hi = do_div(y, CLOCK_TICK_RATE);
-		do_div(x.val, CLOCK_TICK_RATE);
-		x.hi += y;
-		v = x.val;
-	}
-#endif
-
-	return v;
-}
-
 /*
  * Handy function to set GPIO alternate functions
  */

diff --git a/trunk/arch/arm/mach-sa1100/generic.c b/trunk/arch/arm/mach-sa1100/generic.c
@@ -20,7 +20,6 @@
 #include <linux/platform_device.h>
 
 #include <asm/div64.h>
-#include <asm/cnt32_to_63.h>
 #include <asm/hardware.h>
 #include <asm/system.h>
 #include <asm/pgtable.h>
@@ -119,21 +118,15 @@ EXPORT_SYMBOL(cpufreq_get);
 
 /*
  * This is the SA11x0 sched_clock implementation.  This has
- * a resolution of 271ns, and a maximum value of 32025597s (370 days).
- *
- * The return value is guaranteed to be monotonic in that range as
- * long as there is always less than 582 seconds between successive
- * calls to this function.
- *
+ * a resolution of 271ns, and a maximum value of 1165s.
  *  ( * 1E9 / 3686400 => * 78125 / 288)
  */
 unsigned long long sched_clock(void)
 {
-	unsigned long long v = cnt32_to_63(OSCR);
+	unsigned long long v;
 
-	/* the <<1 gets rid of the cnt_32_to_63 top bit saving on a bic insn */
-	v *= 78125<<1;
-	do_div(v, 288<<1);
+	v = (unsigned long long)OSCR * 78125;
+	do_div(v, 288);
 
 	return v;
 }

diff --git a/trunk/arch/arm/mach-versatile/core.c b/trunk/arch/arm/mach-versatile/core.c
@@ -27,7 +27,6 @@
 #include <linux/amba/bus.h>
 #include <linux/amba/clcd.h>
 
-#include <asm/cnt32_to_63.h>
 #include <asm/system.h>
 #include <asm/hardware.h>
 #include <asm/io.h>
@@ -229,19 +228,14 @@ void __init versatile_map_io(void)
 
 /*
  * This is the Versatile sched_clock implementation.  This has
- * a resolution of 41.7ns, and a maximum value of about 35583 days.
- *
- * The return value is guaranteed to be monotonic in that range as
- * long as there is always less than 89 seconds between successive
- * calls to this function.
+ * a resolution of 41.7ns, and a maximum value of about 179s.
  */
 unsigned long long sched_clock(void)
 {
-	unsigned long long v = cnt32_to_63(readl(VERSATILE_REFCOUNTER));
+	unsigned long long v;
 
-	/* the <<1 gets rid of the cnt_32_to_63 top bit saving on a bic insn */
-	v *= 125<<1;
-	do_div(v, 3<<1);
+	v = (unsigned long long)readl(VERSATILE_REFCOUNTER) * 125;
+	do_div(v, 3);
 
 	return v;
 }

diff --git a/trunk/include/asm-arm/cnt32_to_63.h b/trunk/include/asm-arm/cnt32_to_63.h