Merge master.kernel.org:/home/rmk/linux-2.6-arm

9 files changed, 118 insertions, 66 deletions

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 299bc0468702..64cf480b0b02 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -8,7 +8,7 @@
 # Copyright (C) 1995-2001 by Russell King
 
 LDFLAGS_vmlinux :=-p --no-undefined -X
-CPPFLAGS_vmlinux.lds = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
+CPPFLAGS_vmlinux.lds = -DKERNEL_RAM_ADDR=$(TEXTADDR)
 OBJCOPYFLAGS    :=-O binary -R .note -R .comment -S
 GZFLAGS         :=-9
 #CFLAGS         +=-pipe
@@ -108,27 +108,19 @@ export CFLAGS_3c589_cs.o
 endif
 
 TEXTADDR := $(textaddr-y)
-ifeq ($(CONFIG_XIP_KERNEL),y)
-  DATAADDR := $(TEXTADDR)
-  xipaddr-$(CONFIG_ARCH_CO285) := 0x5f000000
-  xipaddr-y ?= 0xbf000000
-  # Replace phys addr with virt addr while keeping offset from base.
-  TEXTADDR := $(shell echo $(CONFIG_XIP_PHYS_ADDR) $(xipaddr-y) | \
-                      awk --non-decimal-data '/[:xdigit:]/ \
-                          { printf("0x%x\n", and($$1, 0x000fffff) + $$2) }' )
-endif
 
 ifeq ($(incdir-y),)
 incdir-y := $(machine-y)
 endif
 INCDIR   := arch-$(incdir-y)
+
 ifneq ($(machine-y),)
 MACHINE  := arch/arm/mach-$(machine-y)/
 else
 MACHINE  :=
 endif
   
-export  TEXTADDR DATAADDR GZFLAGS
+export  TEXTADDR GZFLAGS
 
 # Do we have FASTFPE?
 FASTFPE         :=arch/arm/fastfpe
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 3e1b0327e4d7..c11169b5ed9a 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-AFLAGS_head.o := -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
+AFLAGS_head.o := -DKERNEL_RAM_ADDR=$(TEXTADDR)
 
 # Object file lists.
 
diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
index c1ff4d1f1bfd..04d3082a7b94 100644
--- a/arch/arm/kernel/asm-offsets.c
+++ b/arch/arm/kernel/asm-offsets.c
@@ -94,7 +94,6 @@ int main(void)
   DEFINE(VM_EXEC,               VM_EXEC);
   BLANK();
   DEFINE(PAGE_SZ,               PAGE_SIZE);
-  DEFINE(VIRT_OFFSET,           PAGE_OFFSET);
   BLANK();
   DEFINE(SYS_ERROR0,            0x9f0000);
   BLANK();
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 93b5e8e5292e..be439cab92c6 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -15,6 +15,7 @@
  */
 #include <linux/config.h>
 
+#include <asm/memory.h>
 #include <asm/glue.h>
 #include <asm/vfpmacros.h>
 #include <asm/hardware.h>               /* should be moved into entry-macro.S */
@@ -310,7 +311,7 @@ __pabt_svc:
 
 #if __LINUX_ARM_ARCH__ < 6 && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
         @ make sure our user space atomic helper is aborted
-        cmp     r2, #VIRT_OFFSET
+        cmp     r2, #TASK_SIZE
         bichs   r3, r3, #PSR_Z_BIT
 #endif
 
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 539626351348..8d8748407cbe 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -21,6 +21,7 @@
 #include <asm/procinfo.h>
 #include <asm/ptrace.h>
 #include <asm/asm-offsets.h>
+#include <asm/memory.h>
 #include <asm/thread_info.h>
 #include <asm/system.h>
 
@@ -33,52 +34,28 @@
 #define MACHINFO_PGOFFIO        12
 #define MACHINFO_NAME           16
 
-#ifndef CONFIG_XIP_KERNEL
 /*
- * We place the page tables 16K below TEXTADDR.  Therefore, we must make sure
- * that TEXTADDR is correctly set.  Currently, we expect the least significant
- * 16 bits to be 0x8000, but we could probably relax this restriction to
- * TEXTADDR >= PAGE_OFFSET + 0x4000
- *
- * Note that swapper_pg_dir is the virtual address of the page tables, and
- * pgtbl gives us a position-independent reference to these tables.  We can
- * do this because stext == TEXTADDR
+ * swapper_pg_dir is the virtual address of the initial page table.
+ * We place the page tables 16K below KERNEL_RAM_ADDR.  Therefore, we must
+ * make sure that KERNEL_RAM_ADDR is correctly set.  Currently, we expect
+ * the least significant 16 bits to be 0x8000, but we could probably
+ * relax this restriction to KERNEL_RAM_ADDR >= PAGE_OFFSET + 0x4000.
  */
-#if (TEXTADDR & 0xffff) != 0x8000
-#error TEXTADDR must start at 0xXXXX8000
+#if (KERNEL_RAM_ADDR & 0xffff) != 0x8000
+#error KERNEL_RAM_ADDR must start at 0xXXXX8000
 #endif
 
         .globl  swapper_pg_dir
-        .equ    swapper_pg_dir, TEXTADDR - 0x4000
+        .equ    swapper_pg_dir, KERNEL_RAM_ADDR - 0x4000
 
-        .macro  pgtbl, rd, phys
-        adr     \rd, stext
-        sub     \rd, \rd, #0x4000
+        .macro  pgtbl, rd
+        ldr     \rd, =(__virt_to_phys(KERNEL_RAM_ADDR - 0x4000))
         .endm
-#else
-/*
- * XIP Kernel:
- *
- * We place the page tables 16K below DATAADDR.  Therefore, we must make sure
- * that DATAADDR is correctly set.  Currently, we expect the least significant
- * 16 bits to be 0x8000, but we could probably relax this restriction to
- * DATAADDR >= PAGE_OFFSET + 0x4000
- *
- * Note that pgtbl is meant to return the physical address of swapper_pg_dir.
- * We can't make it relative to the kernel position in this case since
- * the kernel can physically be anywhere.
- */
-#if (DATAADDR & 0xffff) != 0x8000
-#error DATAADDR must start at 0xXXXX8000
-#endif
-
-        .globl  swapper_pg_dir
-        .equ    swapper_pg_dir, DATAADDR - 0x4000
 
-        .macro  pgtbl, rd, phys
-        ldr     \rd, =((DATAADDR - 0x4000) - VIRT_OFFSET)
-        add     \rd, \rd, \phys
-        .endm
+#ifdef CONFIG_XIP_KERNEL
+#define TEXTADDR  XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR)
+#else
+#define TEXTADDR  KERNEL_RAM_ADDR
 #endif
 
 /*
@@ -279,7 +256,7 @@ __turn_mmu_on:
         .type   __create_page_tables, %function
 __create_page_tables:
         ldr     r5, [r8, #MACHINFO_PHYSRAM]     @ physram
-        pgtbl   r4, r5                          @ page table address
+        pgtbl   r4                              @ page table address
 
         /*
          * Clear the 16K level 1 swapper page table
@@ -324,7 +301,7 @@ __create_page_tables:
         /*
          * Then map first 1MB of ram in case it contains our boot params.
          */
-        add     r0, r4, #VIRT_OFFSET >> 18
+        add     r0, r4, #PAGE_OFFSET >> 18
         orr     r6, r5, r7
         str     r6, [r0]
 
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 0d5db5279c5c..80c8e4c8cefa 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -6,14 +6,23 @@
 #include <asm-generic/vmlinux.lds.h>
 #include <linux/config.h>
 #include <asm/thread_info.h>
+#include <asm/memory.h>
         
 OUTPUT_ARCH(arm)
 ENTRY(stext)
+
 #ifndef __ARMEB__
 jiffies = jiffies_64;
 #else
 jiffies = jiffies_64 + 4;
 #endif
+
+#ifdef CONFIG_XIP_KERNEL
+#define TEXTADDR  XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR)
+#else
+#define TEXTADDR  KERNEL_RAM_ADDR
+#endif
+
 SECTIONS
 {
         . = TEXTADDR;
@@ -95,7 +104,7 @@ SECTIONS
 
 #ifdef CONFIG_XIP_KERNEL
         __data_loc = ALIGN(4);          /* location in binary */
-        . = DATAADDR;
+        . = KERNEL_RAM_ADDR;
 #else
         . = ALIGN(THREAD_SIZE);
         __data_loc = .;
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index 93619497779c..f94b0fbcdcc8 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -23,6 +23,7 @@
 #include <asm/system.h>
 #include <asm/pgtable.h>
 #include <asm/mach/map.h>
+#include <asm/mach/flash.h>
 #include <asm/irq.h>
 
 #include "generic.h"
@@ -283,6 +284,7 @@ static struct platform_device sa11x0mtd_device = {
 void sa11x0_set_flash_data(struct flash_platform_data *flash,
                            struct resource *res, int nr)
 {
+        flash->name = "sa1100";
         sa11x0mtd_device.dev.platform_data = flash;
         sa11x0mtd_device.resource = res;
         sa11x0mtd_device.num_resources = nr;
diff --git a/arch/arm/mach-sa1100/jornada720.c b/arch/arm/mach-sa1100/jornada720.c
index 9c363bfcf310..89af0c831e8f 100644
--- a/arch/arm/mach-sa1100/jornada720.c
+++ b/arch/arm/mach-sa1100/jornada720.c
@@ -8,6 +8,8 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/ioport.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
 
 #include <asm/hardware.h>
 #include <asm/hardware/sa1111.h>
@@ -16,6 +18,7 @@
 #include <asm/setup.h>
 
 #include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
 #include <asm/mach/map.h>
 #include <asm/mach/serial_sa1100.h>
 
@@ -108,6 +111,66 @@ static void __init jornada720_map_io(void)
         sa1100_register_uart(1, 1);
 }
 
+static struct mtd_partition jornada720_partitions[] = {
+        {
+                .name           = "JORNADA720 boot firmware",
+                .size           = 0x00040000,
+                .offset         = 0,
+                .mask_flags     = MTD_WRITEABLE,  /* force read-only */
+        }, {
+                .name           = "JORNADA720 kernel",
+                .size           = 0x000c0000,
+                .offset         = 0x00040000,
+        }, {
+                .name           = "JORNADA720 params",
+                .size           = 0x00040000,
+                .offset         = 0x00100000,
+        }, {
+                .name           = "JORNADA720 initrd",
+                .size           = 0x00100000,
+                .offset         = 0x00140000,
+        }, {
+                .name           = "JORNADA720 root cramfs",
+                .size           = 0x00300000,
+                .offset         = 0x00240000,
+        }, {
+                .name           = "JORNADA720 usr cramfs",
+                .size           = 0x00800000,
+                .offset         = 0x00540000,
+        }, {
+                .name           = "JORNADA720 usr local",
+                .size           = 0,  /* will expand to the end of the flash */
+                .offset         = 0x00d00000,
+        }
+};
+
+static void jornada720_set_vpp(int vpp)
+{
+        if (vpp)
+                PPSR |= 0x80;
+        else
+                PPSR &= ~0x80;
+        PPDR |= 0x80;
+}
+
+static struct flash_platform_data jornada720_flash_data = {
+        .map_name       = "cfi_probe",
+        .set_vpp        = jornada720_set_vpp,
+        .parts          = jornada720_partitions,
+        .nr_parts       = ARRAY_SIZE(jornada720_partitions),
+};
+
+static struct resource jornada720_flash_resource = {
+        .start          = SA1100_CS0_PHYS,
+        .end            = SA1100_CS0_PHYS + SZ_32M - 1,
+        .flags          = IORESOURCE_MEM,
+};
+
+static void __init jornada720_mach_init(void)
+{
+        sa11x0_set_flash_data(&jornada720_flash_data, &jornada720_flash_resource, 1);
+}
+
 MACHINE_START(JORNADA720, "HP Jornada 720")
         /* Maintainer: Michael Gernoth <michael@gernoth.net> */
         .phys_ram       = 0xc0000000,
@@ -117,4 +180,5 @@ MACHINE_START(JORNADA720, "HP Jornada 720")
         .map_io         = jornada720_map_io,
         .init_irq       = sa1100_init_irq,
         .timer          = &sa1100_timer,
+        .init_machine   = jornada720_mach_init,
 MACHINE_END
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index f4496813615a..fd079ff1fc53 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -363,20 +363,16 @@ static void __init bootmem_init(struct meminfo *mi)
 
         memcpy(&meminfo, mi, sizeof(meminfo));
 
-#ifdef CONFIG_XIP_KERNEL
-#error needs fixing
-        p->pfn        = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & PMD_MASK);
-        p->virtual    = (unsigned long)&_stext & PMD_MASK;
-        p->length     = ((unsigned long)&_etext - p->virtual + ~PMD_MASK) & PMD_MASK;
-        p->type       = MT_ROM;
-        p ++;
-#endif
-
         /*
          * Clear out all the mappings below the kernel image.
-         * FIXME: what about XIP?
          */
-        for (addr = 0; addr < PAGE_OFFSET; addr += PGDIR_SIZE)
+        for (addr = 0; addr < MODULE_START; addr += PGDIR_SIZE)
+                pmd_clear(pmd_off_k(addr));
+#ifdef CONFIG_XIP_KERNEL
+        /* The XIP kernel is mapped in the module area -- skip over it */
+        addr = ((unsigned long)&_etext + PGDIR_SIZE - 1) & PGDIR_MASK;
+#endif
+        for ( ; addr < PAGE_OFFSET; addr += PGDIR_SIZE)
                 pmd_clear(pmd_off_k(addr));
 
         /*
@@ -436,6 +432,18 @@ static void __init devicemaps_init(struct machine_desc *mdesc)
                 pmd_clear(pmd_off_k(addr));
 
         /*
+         * Map the kernel if it is XIP.
+         * It is always first in the modulearea.
+         */
+#ifdef CONFIG_XIP_KERNEL
+        map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & PGDIR_MASK);
+        map.virtual = MODULE_START;
+        map.length = ((unsigned long)&_etext - map.virtual + ~PGDIR_MASK) & PGDIR_MASK;
+        map.type = MT_ROM;
+        create_mapping(&map);
+#endif
+
+        /*
          * Map the cache flushing regions.
          */
 #ifdef FLUSH_BASE