Upgrade to Linux 2.6.19

- Includes large parts of the patch from #1021 by dpalffy
- Includes RB532 NAND driver changes by n0-1

SVN-Revision: 5789

1 files changed, 0 insertions, 320 deletions

diff --git a/target/linux/x86-2.6/patches/100-scx200_hr_timer.patch b/target/linux/x86-2.6/patches/100-scx200_hr_timer.patch
deleted file mode 100644
index 38fc16a..0000000
--- a/target/linux/x86-2.6/patches/100-scx200_hr_timer.patch
+++ /dev/null
@@ -1,320 +0,0 @@
-SCx200 High Resolution Timer Patch for Linux 2.6
-http://www.gnusto.com/scx200-hr-timer.html
-
-diff -Naurp linux-2.6.12-rc6.orig/arch/i386/Kconfig linux-2.6.12-rc6/arch/i386/Kconfig
---- linux-2.6.12-rc6.orig/arch/i386/Kconfig	2005-06-07 14:56:02.000000000 +0100
-+++ linux-2.6.12-rc6/arch/i386/Kconfig	2005-06-07 16:43:19.000000000 +0100
-@@ -458,6 +458,17 @@ config HPET_EMULATE_RTC
- 	bool "Provide RTC interrupt"
- 	depends on HPET_TIMER && RTC=y
- 
-+config SCx200HR_TIMER
-+	bool "NatSemi SCx200 27MHz High-Resolution Timer Support"
-+	help
-+	  Some of the AMD (formerly National Semiconductor) Geode
-+	  processors, notably the SC1100, suffer from a buggy time
-+	  stamp counter which causes them to lose time when the
-+	  processor is sleeping.  Enable this option to use the
-+	  on-board 27Mz high-resolution timer to keep time instead.
-+	depends on (SCx200)
-+	default n
-+
- config SMP
- 	bool "Symmetric multi-processing support"
- 	---help---
-diff -Naurp linux-2.6.12-rc6.orig/arch/i386/kernel/scx200.c linux-2.6.12-rc6/arch/i386/kernel/scx200.c
---- linux-2.6.12-rc6.orig/arch/i386/kernel/scx200.c	2005-06-07 14:56:02.000000000 +0100
-+++ linux-2.6.12-rc6/arch/i386/kernel/scx200.c	2005-06-07 16:43:19.000000000 +0100
-@@ -27,6 +27,10 @@ long scx200_gpio_shadow[2];
- 
- unsigned scx200_cb_base = 0;
- 
-+#ifdef CONFIG_SCx200HR_TIMER
-+extern void __devinit scx200hr_timer_enable(void);
-+#endif
-+
- static struct pci_device_id scx200_tbl[] = {
- 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_BRIDGE) },
- 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE) },
-@@ -83,6 +87,9 @@ static int __devinit scx200_probe(struct
- 		printk(KERN_INFO NAME ": Configuration Block base 0x%x\n", scx200_cb_base);
- 	}
- 
-+#ifdef CONFIG_SCx200HR_TIMER
-+	scx200hr_timer_enable();
-+#endif
- 	return 0;
- }
- 
-diff -Naurp linux-2.6.12-rc6.orig/arch/i386/kernel/timers/Makefile linux-2.6.12-rc6/arch/i386/kernel/timers/Makefile
---- linux-2.6.12-rc6.orig/arch/i386/kernel/timers/Makefile	2004-03-11 18:21:13.000000000 +0000
-+++ linux-2.6.12-rc6/arch/i386/kernel/timers/Makefile	2005-06-07 16:43:19.000000000 +0100
-@@ -5,5 +5,6 @@
- obj-y := timer.o timer_none.o timer_tsc.o timer_pit.o common.o
- 
- obj-$(CONFIG_X86_CYCLONE_TIMER)	+= timer_cyclone.o
-+obj-$(CONFIG_SCx200HR_TIMER)	+= timer_scx200hr.o
- obj-$(CONFIG_HPET_TIMER)	+= timer_hpet.o
- obj-$(CONFIG_X86_PM_TIMER)	+= timer_pm.o
-diff -Naurp linux-2.6.12-rc6.orig/arch/i386/kernel/timers/timer.c linux-2.6.12-rc6/arch/i386/kernel/timers/timer.c
---- linux-2.6.12-rc6.orig/arch/i386/kernel/timers/timer.c	2004-12-26 14:07:37.000000000 +0000
-+++ linux-2.6.12-rc6/arch/i386/kernel/timers/timer.c	2005-06-07 16:43:19.000000000 +0100
-@@ -13,6 +13,9 @@
- #endif
- /* list of timers, ordered by preference, NULL terminated */
- static struct init_timer_opts* __initdata timers[] = {
-+#ifdef CONFIG_SCx200HR_TIMER
-+	&timer_scx200hr_init,
-+#endif
- #ifdef CONFIG_X86_CYCLONE_TIMER
- 	&timer_cyclone_init,
- #endif
-diff -Naurp linux-2.6.12-rc6.orig/arch/i386/kernel/timers/timer_scx200hr.c linux-2.6.12-rc6/arch/i386/kernel/timers/timer_scx200hr.c
---- linux-2.6.12-rc6.orig/arch/i386/kernel/timers/timer_scx200hr.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12-rc6/arch/i386/kernel/timers/timer_scx200hr.c	2005-06-07 16:43:19.000000000 +0100
-@@ -0,0 +1,220 @@
-+/*
-+ * Copyright (C) 2005 Ted Phelps
-+ *
-+ * This is a clock driver for the Geode SCx200's 27MHz high-resolution
-+ * timer as the system clock replacing its buggy time stamp counter.
-+ *
-+ * Based on parts of timer_hpet.c, timer_tsc.c and timer_pit.c.
-+ *
-+ * 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 <asm/timer.h>
-+#include <linux/init.h>
-+#include <linux/pci.h>
-+#include <linux/seq_file.h>
-+#include <linux/scx200.h>
-+
-+#define NAME "scx200hr"
-+
-+/* Read the clock */
-+#define SCx200HR_CLOCK() inl(scx200_cb_base + SCx200_TIMER_OFFSET)
-+
-+/* High-resolution timer configuration address */
-+#define SCx200_TMCNFG_OFFSET (SCx200_TIMER_OFFSET + 5)
-+
-+/* Set this bit to disable the 27 MHz input clock */
-+#define HR_TM27MPD (1 << 2)
-+
-+/* Set this bit to update the count-up timer once per cycle of the
-+ * 27MHz timer, clear it to update the timer once every 27 cycles
-+ * (effectively producing a 1MHz counter) */
-+#define HR_TMCLKSEL (1 << 1)
-+
-+/* Set this bit to enable the high-resolution timer interrupt */
-+#define HR_TMEN (1 << 0)
-+
-+/* The frequency of the timer.	Change this to 27000000 and set
-+ * HR_TMCLKSEL in scx200hr_enable to run at the faster clock rate.  At
-+ * this point in time there is no point in doing so since times are
-+ * recorded in usec except for the monotonic clock, which is only used
-+ * by the hangcheck-timer. */
-+#define HR_FREQ 1000000
-+
-+/* The number of cycles of the high-resolution timer we expect to see
-+ * in a single tick.  Note that the result is <<8 for greater precision*/
-+#define HR_CYCLES_PER_TICK \
-+    (SH_DIV(HR_FREQ / 1000000 * TICK_NSEC, 1000, 8))
-+
-+/* The number of cycles of the high-resolution timer we expect to see
-+ * in one microsecond, <<8 */
-+#define HR_CYCLES_PER_US ((HR_FREQ / 1000000) << 8)
-+
-+
-+/* The value of the timer at the last interrupt */
-+static u32 clock_at_last_interrupt;
-+
-+/* The number of high-resolution clock cycles beyond what we would
-+ have expected that the last tick occurred, <<8 for greater precision */
-+static long clock_delay;
-+
-+/* The total number of timer nanoseconds between the time the timer
-+ * went live and the most recent tick. */
-+static unsigned long long total_ns;
-+
-+/* A lock to guard access to the monotonic clock-related variables
-+ * (total_ns and clocal_at_last_interrupt).  Note that these are also
-+ * protected by the xtime lock. */
-+static seqlock_t hr_lock = SEQLOCK_UNLOCKED;
-+
-+/* Nonzero if the timer has been selected */
-+static int enable_scx200hr;
-+
-+static int __init scx200hr_init(char *override)
-+{
-+	/* Watch for a command-line clock= override */
-+	if (override[0] && strncmp(override, NAME, sizeof(NAME) - 1) != 0) {
-+		return -ENODEV;
-+	}
-+
-+        /* Note that we should try to enable this timer once the
-+         * configuration block address is known */
-+        printk(KERN_WARNING NAME ": timer not yet accessible; will probe later.\n");
-+	enable_scx200hr = 1;
-+	return -EAGAIN;
-+}
-+
-+/* Called by the timer interrupt.  The xtime_lock will be held. */
-+static void mark_offset_scx200hr(void)
-+{
-+	u32 now, delta;
-+
-+	/* Avoid races between the interrupt handler and monotonic_clock */
-+	write_seqlock(&hr_lock);
-+
-+	/* Determine how many cycles have elapsed since the last interrupt */
-+	now = SCx200HR_CLOCK();
-+	delta = (now - clock_at_last_interrupt) << 8;
-+	clock_at_last_interrupt = now;
-+
-+	/* Update the total us count and remainder */
-+	total_ns += (delta * 1000) / HR_CYCLES_PER_US;
-+
-+	/* The monotonic clock is safe now */
-+	write_sequnlock(&hr_lock);
-+
-+	/* Adjust for interrupt handling delay */
-+	delta += clock_delay;
-+
-+	/* The high-resolution timer is driven by a different crystal
-+	 * to the main CPU, so there's no guarantee that the 1KHz
-+	 * interrupt rate will coincide with the timer.  This keeps
-+	 * the jiffies count in line with the high-resolution timer,
-+	 * which makes it possible for NTP to do its magic */
-+	if (delta < HR_CYCLES_PER_TICK) {
-+#if 1
-+		/* Didn't go over 1000us: decrement jiffies to balance
-+		 * out increment in do_timer.  This will cause some
-+		 * jitter if the frequency offset is large, as that
-+		 * adjustment will be applied about 1ms late. */
-+		jiffies_64--;
-+		clock_delay = delta;
-+#else /* !1 */
-+                clock_delay = 0;
-+#endif /* 1 */
-+	} else if (delta < (HR_CYCLES_PER_TICK << 1) + (HR_CYCLES_PER_TICK >> 1)) {
-+		clock_delay = delta - HR_CYCLES_PER_TICK;
-+	} else {
-+		jiffies_64 += delta / HR_CYCLES_PER_TICK - 2;
-+		clock_delay = HR_CYCLES_PER_TICK + delta % HR_CYCLES_PER_TICK;
-+	}
-+}
-+
-+/* Called by gettimeofday().  Returns the number of microseconds since
-+ * the last interrupt.	This is called with the xtime_lock held.*/
-+static unsigned long get_offset_scx200hr(void)
-+{
-+	u32 delta;
-+
-+	/* Get the time now and determine how many cycles have
-+	 * transpired since the interrupt, adjusting for timer
-+	 * interrupt jitter. */
-+	delta = ((SCx200HR_CLOCK() - clock_at_last_interrupt) << 8) + clock_delay;
-+
-+	/* Convert from cycles<<8 to microseconds */
-+	return delta / HR_CYCLES_PER_US;
-+}
-+
-+/* Returns the number of nanoseconds since the init of the timer. */
-+static unsigned long long monotonic_clock_scx200hr(void)
-+{
-+	u32 delta, seq;
-+	unsigned long long ns;
-+
-+	/* This function is *not* called with xtime_lock held, so we
-+	 * need to get the hr_lock to ensure we're not competing with
-+	 * mark_offset_scx200hr. */
-+	do {
-+		seq = read_seqbegin(&hr_lock);
-+		ns = total_ns;
-+		delta = SCx200HR_CLOCK() - clock_at_last_interrupt;
-+	} while (read_seqretry(&hr_lock, seq));
-+
-+	/* Convert cycles to microseconds and add. */
-+	return ns + delta * 1000 / HR_CYCLES_PER_US;
-+}
-+
-+/* scx200hr timer_opts struct */
-+struct timer_opts timer_scx200hr = {
-+	.name = NAME,
-+	.mark_offset = mark_offset_scx200hr, 
-+	.get_offset = get_offset_scx200hr,
-+	.monotonic_clock = monotonic_clock_scx200hr,
-+	.delay = NULL
-+};
-+
-+/* And the init_timer struct */
-+struct init_timer_opts __devinitdata timer_scx200hr_init = {
-+	.init = scx200hr_init,
-+	.opts = &timer_scx200hr
-+};
-+
-+
-+/* Switch from the original timer to the high-resolution timer */
-+void __devinit scx200hr_timer_enable(void)
-+{
-+        /* Make sure the timer was requested and that the
-+         * configuration block is present */
-+	if (!enable_scx200hr || !scx200_cb_present()) {
-+		return;
-+	}
-+
-+	/* Reserve the timer region for ourselves */
-+	if (!request_region(scx200_cb_base + SCx200_TIMER_OFFSET,
-+			    SCx200_TIMER_SIZE,
-+			    "NatSemi SCx200 High-Resolution Timer")) {
-+		printk(KERN_WARNING NAME ": unable to lock timer region\n");
-+		return;
-+	}
-+
-+	/* Configure the timer */
-+	outb(0, scx200_cb_base + SCx200_TMCNFG_OFFSET);
-+
-+	/* Record the current value of the timer. */
-+	clock_at_last_interrupt = SCx200HR_CLOCK();
-+
-+        /* Get the current value of the monotonic clock */
-+	total_ns = cur_timer->monotonic_clock();
-+
-+        /* Switch from the original timer functions to ours, but keep
-+         * the current delay function since loops_per_jiffy will have
-+         * been computed using that */
-+        timer_scx200hr.delay = cur_timer->delay;
-+	cur_timer = &timer_scx200hr;
-+
-+	printk(KERN_INFO "switching to scx200 high-resolution timer (%lu cpt)\n",
-+                HR_CYCLES_PER_TICK);
-+}
-diff -Naurp linux-2.6.12-rc6.orig/include/asm-i386/timer.h linux-2.6.12-rc6/include/asm-i386/timer.h
---- linux-2.6.12-rc6.orig/include/asm-i386/timer.h	2005-06-07 14:56:11.000000000 +0100
-+++ linux-2.6.12-rc6/include/asm-i386/timer.h	2005-06-07 16:43:19.000000000 +0100
-@@ -50,6 +50,9 @@ extern struct init_timer_opts timer_tsc_
- #ifdef CONFIG_X86_CYCLONE_TIMER
- extern struct init_timer_opts timer_cyclone_init;
- #endif
-+#ifdef CONFIG_SCx200HR_TIMER
-+extern struct init_timer_opts timer_scx200hr_init;
-+#endif
- 
- extern unsigned long calibrate_tsc(void);
- extern void init_cpu_khz(void);
-diff -Naurp linux-2.6.12-rc6.orig/include/linux/scx200.h linux-2.6.12-rc6/include/linux/scx200.h
---- linux-2.6.12-rc6.orig/include/linux/scx200.h	2005-06-07 14:56:11.000000000 +0100
-+++ linux-2.6.12-rc6/include/linux/scx200.h	2005-06-07 16:43:19.000000000 +0100
-@@ -32,7 +32,7 @@ extern unsigned scx200_cb_base;
- 
- /* High Resolution Timer */
- #define SCx200_TIMER_OFFSET 0x08
--#define SCx200_TIMER_SIZE 0x05
-+#define SCx200_TIMER_SIZE 0x06
- 
- /* Clock Generators */
- #define SCx200_CLOCKGEN_OFFSET 0x10