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openwrt-mirror/target/linux/coldfire/patches/046-mcfv4e_kern_to_phys.patch

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From 13fc0abf4b5da6f18dea15fd31697655615a79fc Mon Sep 17 00:00:00 2001
From: Kurt Mahan <kmahan@freescale.com>
Date: Wed, 12 Mar 2008 15:39:03 -0600
Subject: [PATCH] Move kernel to physical sdram base address.
Work based on the patches from Systec GMBH. Also DMA support,
uBoot integration, FEC fixes, and assorted cleanups.
Uber patch needs to be split up.
LTIBName: mcfv4e-kern-to-phys
Signed-off-by: Kurt Mahan <kmahan@freescale.com>
---
arch/m68k/coldfire/config.c | 102 ++-----
arch/m68k/coldfire/dma.c | 7 +-
arch/m68k/coldfire/entry.S | 10 +
arch/m68k/coldfire/head.S | 53 +++-
arch/m68k/coldfire/mcf5445x-devices.c | 2 +
arch/m68k/coldfire/mcf5445x-pci.c | 3 +
arch/m68k/coldfire/signal.c | 3 +
arch/m68k/configs/m5485evb_defconfig | 79 +++++-
arch/m68k/mm/cache.c | 4 +-
arch/m68k/mm/cf-mmu.c | 28 ++-
arch/m68k/mm/memory.c | 8 +-
drivers/net/fec/fec.c | 20 +-
include/asm-m68k/bootinfo.h | 59 +++-
include/asm-m68k/cf_cacheflush.h | 547 +++++++++++----------------------
include/asm-m68k/cf_pgalloc.h | 5 +-
include/asm-m68k/cf_pgtable.h | 2 +-
include/asm-m68k/cfcache.h | 6 +
include/asm-m68k/page.h | 8 +
include/asm-m68k/page_offset.h | 25 +-
19 files changed, 446 insertions(+), 525 deletions(-)
--- a/arch/m68k/coldfire/config.c
+++ b/arch/m68k/coldfire/config.c
@@ -23,7 +23,6 @@
#include <asm/coldfire.h>
#include <asm/cfcache.h>
#include <asm/cacheflush.h>
-#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/cfmmu.h>
#include <asm/setup.h>
@@ -36,7 +35,14 @@
#include <asm/mcfsim.h>
-#if 0
+#if defined(CONFIG_M54455)
+#define UBOOT_EXTRA_CLOCKS
+#elif defined(CONFIG_M547X_8X)
+#define UBOOT_PCI
+#endif
+#include <asm/bootinfo.h>
+
+#ifdef CONFIG_M54455
#include <asm/mcf5445x_intc.h>
#include <asm/mcf5445x_sdramc.h>
#include <asm/mcf5445x_fbcs.h>
@@ -44,10 +50,6 @@
#include <asm/mcf5445x_xbs.h>
#endif
-/* JKM -- testing */
-#include <linux/pfn.h>
-/* JKM */
-
extern int get_irq_list(struct seq_file *p, void *v);
extern char _text, _end;
extern char _etext, _edata, __init_begin, __init_end;
@@ -58,6 +60,10 @@ extern unsigned long availmem;
static int irq_enable[NR_IRQS];
unsigned long num_pages;
+/* ethernet mac addresses from uboot */
+unsigned char uboot_enet0[6];
+unsigned char uboot_enet1[6];
+
void coldfire_sort_memrec(void)
{
int i, j;
@@ -87,6 +93,9 @@ void coldfire_sort_memrec(void)
}
}
+/*
+ * UBoot Handler
+ */
int __init uboot_commandline(char *bootargs)
{
int len = 0, cmd_line_len;
@@ -101,12 +110,17 @@ int __init uboot_commandline(char *boota
return 0;
/* Add offset to get post-remapped kernel memory location */
- uboot_info.bd_info = (*(u32 *)(uboot_info_stk)) + offset;
+ uboot_info.bdi = (struct bd_info *)((*(u32 *)(uboot_info_stk)) + offset);
uboot_info.initrd_start = (*(u32 *)(uboot_info_stk+4)) + offset;
uboot_info.initrd_end = (*(u32 *)(uboot_info_stk+8)) + offset;
uboot_info.cmd_line_start = (*(u32 *)(uboot_info_stk+12)) + offset;
uboot_info.cmd_line_stop = (*(u32 *)(uboot_info_stk+16)) + offset;
+ /* copy over mac addresses */
+ memcpy(uboot_enet0, uboot_info.bdi->bi_enet0addr, 6);
+ memcpy(uboot_enet1, uboot_info.bdi->bi_enet1addr, 6);
+
+ /* copy command line */
cmd_line_len = uboot_info.cmd_line_stop - uboot_info.cmd_line_start;
if ((cmd_line_len > 0) && (cmd_line_len < CL_SIZE-1))
len = (int)strncpy(bootargs, (char *)uboot_info.cmd_line_start,\
@@ -121,7 +135,7 @@ int __init uboot_commandline(char *boota
#if defined(CONFIG_M54455)
#define DEFAULT_COMMAND_LINE "root=/dev/mtdblock1 rw rootfstype=jffs2 ip=none mtdparts=physmap-flash.0:5M(kernel)ro,-(jffs2)"
#elif defined(CONFIG_M547X_8X)
-#define DEFAULT_COMMAND_LINE "debug root=/dev/nfs nfsroot=172.27.155.1:/tftpboot/rigo/rootfs/ ip=172.27.155.85:172.27.155.1"
+#define DEFAULT_COMMAND_LINE "debug root=/dev/nfs rw nfsroot=172.27.155.1:/tftpboot/rigo/rootfs/ ip=172.27.155.85:172.27.155.1"
#endif
asmlinkage void __init cf_early_init(void)
{
@@ -142,7 +156,6 @@ asmlinkage void __init cf_early_init(voi
MCF_INTC1_IMRL = 0xFFFFFFFF;
MCF_INTC1_IMRH = 0xFFFFFFFF;
#elif defined(CONFIG_M547X_8X)
-/* JKM -- ?? */
MCF_IMRL = 0xFFFFFFFF;
MCF_IMRH = 0xFFFFFFFF;
#endif
@@ -170,7 +183,6 @@ asmlinkage void __init cf_early_init(voi
MCF_XBS_PRS_M6(MCF_XBS_PRI_1) |
MCF_XBS_PRS_M7(MCF_XBS_PRI_7));
#endif
-
m68k_machtype = MACH_CFMMU;
m68k_fputype = FPU_CFV4E;
@@ -181,7 +193,6 @@ asmlinkage void __init cf_early_init(voi
m68k_memory[m68k_num_memory].addr = CONFIG_SDRAM_BASE;
m68k_memory[m68k_num_memory++].size = CONFIG_SDRAM_SIZE;
-#if defined(CONFIG_M54455)
if (!uboot_commandline(m68k_command_line)) {
#if defined(CONFIG_BOOTPARAM)
strncpy(m68k_command_line, CONFIG_BOOTPARAM_STRING, CL_SIZE-1);
@@ -189,11 +200,6 @@ asmlinkage void __init cf_early_init(voi
strcpy(m68k_command_line, DEFAULT_COMMAND_LINE);
#endif
}
-#else
-/* JKM -- hack until mappings get resolved */
- strcpy(m68k_command_line, DEFAULT_COMMAND_LINE);
-#endif
-
#if defined(CONFIG_BLK_DEV_INITRD)
/* add initrd image */
@@ -372,75 +378,11 @@ void coldfire_reboot(void)
#endif
}
-/* int coldfire_hwclk(int i, struct rtc_time *t)
-{
- printk ("Real time clock needs porting.\n");
- return 0;
-}*/
-
static void coldfire_get_model(char *model)
{
sprintf(model, "Version 4 ColdFire");
}
-/* JKM -- Why do we need these? */
-void coldfire_enable_irq(unsigned int vec)
-{
- unsigned long flags;
-
- vec -= 64;
-
- if (((int)vec < 0) || (vec > 63)) {
- printk(KERN_WARNING "enable_irq %d failed\n", vec);
- return;
- }
-
- local_irq_save(flags);
- irq_enable[vec]++;
-#if defined(CONFIG_M54455)
- if (vec < 32)
- MCF_INTC0_IMRL &= ~(1 << vec);
- else
- MCF_INTC0_IMRH &= ~(1 << (vec - 32));
-#elif defined(CONFIG_M547X_8X)
- if (vec < 32)
- MCF_IMRL &= ~(1 << vec);
- else
- MCF_IMRH &= ~(1 << (vec - 32));
-#endif
- local_irq_restore(flags);
-}
-
-/* JKM -- Why do we need these? */
-void coldfire_disable_irq(unsigned int vec)
-{
- unsigned long flags;
-
- vec -= 64;
-
- if (((int)vec < 0) || (vec > 63)) {
- printk(KERN_WARNING "disable_irq %d failed\n", vec);
- return;
- }
-
- local_irq_save(flags);
- if (--irq_enable[vec] == 0) {
-#if defined(CONFIG_M54455)
- if (vec < 32)
- MCF_INTC0_IMRL |= (1 << vec);
- else
- MCF_INTC0_IMRH |= (1 << (vec - 32));
-#elif defined(CONFIG_M547X_8X)
- if (vec < 32)
- MCF_IMRL |= (1 << vec);
- else
- MCF_IMRH |= (1 << (vec - 32));
-#endif
-
- }
- local_irq_restore(flags);
-}
-
static void __init
coldfire_bootmem_alloc(unsigned long memory_start, unsigned long memory_end)
{
--- a/arch/m68k/coldfire/dma.c
+++ b/arch/m68k/coldfire/dma.c
@@ -516,13 +516,8 @@ dma_init()
MCF_DMA_DIPR = 0xFFFFFFFF;
MCF_ICR(ISC_DMA) = ILP_DMA;
-#if 0
-// JKM
- enable_irq( 64 + ISC_DMA );
-#endif
- result =
- MCD_initDma((dmaRegs *) (MCF_MBAR + 0x8000),
+ result = MCD_initDma((dmaRegs *) (MCF_MBAR + 0x8000),
(void *) SYS_SRAM_DMA_START, MCD_RELOC_TASKS);
if (result != MCD_OK) {
printk("Cannot perform DMA initialization\n");
--- a/arch/m68k/coldfire/entry.S
+++ b/arch/m68k/coldfire/entry.S
@@ -10,6 +10,8 @@
* Kurt Mahan kmahan@freescale.com
* Copyright Freescale Semiconductor, Inc. 2007
*
+ * Modify irq status in buserr -- (c) Copyright 2008, SYSTEM electronic Gmbh
+ *
* Based on:
*
* arch/m68knommu/platform/5307/entry.S &
@@ -77,7 +79,15 @@ sw_usp:
.globl inthandler
ENTRY(buserr)
+#ifdef CONFIG_COLDFIRE_FOO
+ movew #0x2700,%sr /* lock interrupts */
+#endif
SAVE_ALL_INT
+#ifdef CONFIG_COLDFIRE_FOO
+ movew PT_SR(%sp),%d3 /* get original %sr */
+ oril #0x2000,%d3 /* set supervisor mode in it */
+ movew %d3,%sr /* recover irq state */
+#endif
GET_CURRENT(%d0)
movel %sp,%sp@- /* stack frame pointer argument */
jsr buserr_c
--- a/arch/m68k/coldfire/head.S
+++ b/arch/m68k/coldfire/head.S
@@ -5,6 +5,7 @@
* Matt Waddel Matt.Waddel@freescale.com
* Kurt Mahan kmahan@freescale.com
* Copyright Freescale Semiconductor, Inc. 2007, 2008
+ * Phys kernel mapping Copyright Daniel Krueger, SYSTEC electornic GmbH 2008
*
* 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
@@ -52,7 +53,7 @@
#define __FINIT .previous
#endif
-/* JKM -- REVISE DOCS FOR RIGO */
+/* JKM -- REVISE DOCS FOR RIGO and PHYS MAPPING */
/*
* Setup ACR mappings to provide the following memory map:
* Data
@@ -62,10 +63,17 @@
* None currently (mapped via TLBs)
*/
+#if CONFIG_SDRAM_BASE != PAGE_BASE
#if defined(CONFIG_M54455)
+#if 0
#define ACR0_DEFAULT #0xA00FA048 /* ACR0 default value */
+#endif
+#define ACR0_DEFAULT #0x400FA028 /* ACR0 default value */
#define ACR1_DEFAULT #0xF00FA040 /* ACR1 default value */
+#if 0
#define ACR2_DEFAULT #0x00000000 /* ACR2 default value */
+#endif
+#define ACR2_DEFAULT #0x400FA028 /* ACR2 default value */
#define ACR3_DEFAULT #0x00000000 /* ACR3 default value */
/* ACR mapping for FPGA (maps 0) */
#define ACR0_FPGA #0x000FA048 /* ACR0 enable FPGA */
@@ -76,6 +84,16 @@
#define ACR3_DEFAULT #0x00000000 /* ACR3 default value */
#endif
+#else
+#if defined(CONFIG_M54455)
+#elif defined(CONFIG_M547X_8X)
+#define ACR0_DEFAULT #0xE000C040 /* ACR0 default value */
+#define ACR1_DEFAULT #0x000FA008 /* ACR1 default value */
+#define ACR2_DEFAULT #0x00000000 /* ACR2 default value */
+#define ACR3_DEFAULT #0x000FA008 /* ACR3 default value */
+#endif
+#endif
+
/* Several macros to make the writing of subroutines easier:
* - func_start marks the beginning of the routine which setups the frame
@@ -153,6 +171,7 @@ func_define putn,1
#endif
.endm
+#if CONFIG_SDRAM_BASE != PAGE_OFFSET
/*
mmu_map - creates a new TLB entry
@@ -222,6 +241,7 @@ func_define putn,1
movew \temp_data_reg, (MMUOR)
1:
.endm /* mmu_unmap */
+#endif /* CONFIG_SDRAM_BASE != PAGE_OFFSET */
/* .text */
.section ".text.head","ax"
@@ -235,7 +255,11 @@ ENTRY(_stext)
.long BOOTINFOV_MAGIC
.long 0
+#if CONFIG_SDRAM_BASE != PAGE_OFFSET
1: jmp __start-(0xc0000000-CONFIG_SDRAM_BASE)
+#else
+1: jmp __start
+#endif
.equ kernel_pg_dir,_stext
.equ .,_stext+0x1000
@@ -244,24 +268,13 @@ ENTRY(_start)
jra __start
__INIT
ENTRY(__start)
-
-/* JKM -- make sure Rigo handles UBOOT */
/* Save the location of u-boot info - cmd line, bd_info, etc. */
movel %a7,%a4 /* Don't use %a4 before cf_early_init */
-/* JKM -- fix to use CONFIG_SDRAM_BASE) */
-#if defined(CONFIG_M54455)
- addl #0x80000004,%a4 /* 0x80000004= 1 stack push + high mem offset */
-#elif defined(CONFIG_M547X_8X)
- addl #0xc0000004,%a4 /* 0x80000004= 1 stack push + high mem offset */
-#endif
+ addl #0x00000004,%a4 /* offset past top */
+ addl #(PAGE_OFFSET-CONFIG_SDRAM_BASE),%a4 /* high mem offset */
-/* JKM -- fix this to work off of CONFIG_SDRAM_BASE */
/* Setup initial stack pointer */
-#if defined(CONFIG_M54455)
- movel #0x40001000,%sp
-#elif defined(CONFIG_M547X_8X)
- movel #0x00001000,%sp
-#endif
+ movel #CONFIG_SDRAM_BASE+0x1000,%sp
/* Setup usp */
subl %a0,%a0
@@ -297,16 +310,21 @@ ENTRY(__start)
/* setup ACRs */
movel ACR0_DEFAULT, %d0 /* ACR0 (DATA) setup */
movec %d0, %acr0
+ nop
movel ACR1_DEFAULT, %d0 /* ACR1 (DATA) setup */
movec %d0, %acr1
+ nop
movel ACR2_DEFAULT, %d0 /* ACR2 (CODE) setup */
movec %d0, %acr2
+ nop
movel ACR3_DEFAULT, %d0 /* ACR3 (CODE) setup */
movec %d0, %acr3
+ nop
/* If you change the memory size to another value make a matching
change in paging_init(cf-mmu.c) to zones_size[]. */
+#if CONFIG_SDRAM_BASE != PAGE_OFFSET
#if defined(CONFIG_M54455)
/* Map 256MB as code */
mmu_map (PAGE_OFFSET+0*0x1000000), (PHYS_OFFSET+0*0x1000000), \
@@ -511,6 +529,7 @@ ENTRY(__start)
MMUTR_SG, MMUDR_SZ1M, MMUDR_DCB, MMUDR_SP, MMUDR_R, \
MMUDR_W, 0, 0, %d0
#endif
+#endif /* CONFIG_SDRAM_BASE != PAGE_OFFSET */
/* Turn on MMU */
movel #(MMUCR_EN),%a0
@@ -531,6 +550,7 @@ ENTRY(__running_high)
movel %a1,%a0@
/* Unmap unity mappings */
+#if CONFIG_SDRAM_BASE != PAGE_OFFSET
#if defined(CONFIG_M54455)
mmu_unmap (PHYS_OFFSET+0*0x1000000), MMUOR_ITLB, %d0
mmu_unmap (PHYS_OFFSET+0*0x1000000), 0, %d0
@@ -544,6 +564,7 @@ ENTRY(__running_high)
mmu_unmap (PHYS_OFFSET+2*0x1000000), 0, %d0
mmu_unmap (PHYS_OFFSET+3*0x1000000), 0, %d0
#endif
+#endif /* CONFIG_SDRAM_BASE != PAGE_OFFSET */
/* Setup initial stack pointer */
lea init_task,%a2
@@ -574,6 +595,7 @@ func_return set_context
* Map in 0x00000000 -> 0x0fffffff and then do the write.
*/
set_fpga:
+#if 0
movew %sr,%d1
movew #0x2700,%sr
movel ACR0_FPGA, %d0
@@ -585,6 +607,7 @@ set_fpga:
movec %d0, %acr0
nop
movew %d1,%sr
+#endif
rts
#endif
--- a/arch/m68k/coldfire/mcf5445x-devices.c
+++ b/arch/m68k/coldfire/mcf5445x-devices.c
@@ -127,7 +127,9 @@ static inline void mcf5445x_init_pata(vo
static int __init mcf5445x_init_devices(void)
{
printk(KERN_INFO "MCF5445x INIT_DEVICES\n");
+#if 0
mcf5445x_init_pata();
+#endif
return 0;
}
--- a/arch/m68k/coldfire/mcf5445x-pci.c
+++ b/arch/m68k/coldfire/mcf5445x-pci.c
@@ -236,6 +236,8 @@ mcf5445x_pci_arb_interrupt(int irq, void
int __init
init_mcf5445x_pci(void)
{
+ return 0;
+#if 0
/*
* Initialize the PCI core
*/
@@ -331,6 +333,7 @@ init_mcf5445x_pci(void)
raw_pci_ops = &mcf5445x_pci_ops;
return 0;
+#endif
}
/*
--- a/arch/m68k/coldfire/signal.c
+++ b/arch/m68k/coldfire/signal.c
@@ -608,7 +608,10 @@ static inline int rt_setup_ucontext(stru
static inline void push_cache(unsigned long vaddr)
{
+#if 0
+// JKM -- need to add into the old cpushl cache stuff
cf_cache_push(__pa(vaddr), 8);
+#endif
}
static inline void __user *
--- a/arch/m68k/configs/m5485evb_defconfig
+++ b/arch/m68k/configs/m5485evb_defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.24
-# Thu Feb 21 00:19:01 2008
+# Wed Mar 5 16:05:25 2008
#
CONFIG_M68K=y
CONFIG_MMU=y
@@ -103,6 +103,7 @@ CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_SUN3 is not set
CONFIG_COLDFIRE=y
CONFIG_CFV4E=y
+CONFIG_MCD_DMA=y
# CONFIG_AMIGA is not set
# CONFIG_ATARI is not set
# CONFIG_MAC is not set
@@ -135,7 +136,7 @@ CONFIG_M5485CFE=y
# CONFIG_M5485DFE is not set
# CONFIG_M5485EFE is not set
# CONFIG_M5485FFE is not set
-CONFIG_MCFCLK=50000000
+CONFIG_MCFCLK=200000000
# CONFIG_MCF_USER_HALT is not set
CONFIG_MMU_CFV4E=y
CONFIG_SDRAM_BASE=0x00000000
@@ -279,7 +280,73 @@ CONFIG_FW_LOADER=y
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+
+#
+# User Modules And Translation Layers
+#
+# CONFIG_MTD_CHAR is not set
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_RAM=y
+CONFIG_MTD_ROM=y
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_PHYSMAP is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_COW_COMMON is not set
@@ -347,6 +414,9 @@ CONFIG_NETDEVICES=y
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
+CONFIG_FEC_548x=y
+CONFIG_FEC_548x_AUTO_NEGOTIATION=y
+# CONFIG_FEC_548x_ENABLE_FEC2 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
@@ -530,7 +600,7 @@ CONFIG_FS_MBCACHE=y
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_MINIX_FS=y
-# CONFIG_ROMFS_FS is not set
+CONFIG_ROMFS_FS=y
# CONFIG_INOTIFY is not set
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
@@ -578,6 +648,7 @@ CONFIG_TMPFS=y
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
+# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
--- a/arch/m68k/mm/cache.c
+++ b/arch/m68k/mm/cache.c
@@ -81,7 +81,9 @@ static unsigned long virt_to_phys_slow(u
void flush_icache_range(unsigned long address, unsigned long endaddr)
{
#ifdef CONFIG_COLDFIRE
- cf_icache_flush_range(address, endaddr);
+// JKM -- hack until new cpushl stuff is in
+// cf_icache_flush_range(address, endaddr);
+ flush_icache();
#else /* !CONFIG_COLDFIRE */
if (CPU_IS_040_OR_060) {
--- a/arch/m68k/mm/cf-mmu.c
+++ b/arch/m68k/mm/cf-mmu.c
@@ -35,6 +35,12 @@
#include <asm/coldfire.h>
#include <asm/tlbflush.h>
+#if PAGE_OFFSET == CONFIG_SDRAM_BASE
+#define KERNRAM(x) ((x >= PAGE_OFFSET) && (x < (PAGE_OFFSET + CONFIG_SDRAM_SIZE)))
+#else
+#define KERNRAM(x) (x >= PAGE_OFFSET)
+#endif
+
mm_context_t next_mmu_context;
unsigned long context_map[LAST_CONTEXT / BITS_PER_LONG + 1];
@@ -53,10 +59,16 @@ extern char __init_begin, __init_end;
void free_initmem(void)
{
+#if 0
unsigned long addr;
unsigned long start = (unsigned long)&__init_begin;
unsigned long end = (unsigned long)&__init_end;
+/*
+ * JKM -- revisit -- the latest round of vmlinux.lds changes has caused
+ * a little grief with how init areas are handled. With the new toolchain
+ * release I'll fix this.
+ */
printk(KERN_INFO "free_initmem: __init_begin = 0x%lx __init_end = 0x%lx\n", start, end);
addr = (unsigned long)&__init_begin;
@@ -67,6 +79,7 @@ void free_initmem(void)
free_page(addr);
totalram_pages++;
}
+#endif
}
/* Coldfire paging_init derived from sun3 */
@@ -149,8 +162,8 @@ int cf_tlb_miss(struct pt_regs *regs, in
mmuar = ( dtlb ) ? regs->mmuar
: regs->pc + (extension_word * sizeof(long));
- mm = (!user_mode(regs) && (mmuar >= PAGE_OFFSET)) ? &init_mm
- : current->mm;
+ mm = (!user_mode(regs) && KERNRAM(mmuar)) ? &init_mm : current->mm;
+
if (!mm) {
local_irq_restore(flags);
return (-1);
@@ -167,9 +180,9 @@ int cf_tlb_miss(struct pt_regs *regs, in
local_irq_restore(flags);
return (-1);
}
-
- pte = (mmuar >= PAGE_OFFSET) ? pte_offset_kernel(pmd, mmuar)
- : pte_offset_map(pmd, mmuar);
+
+ pte = (KERNRAM(mmuar)) ? pte_offset_kernel(pmd, mmuar)
+ : pte_offset_map(pmd, mmuar);
if (pte_none(*pte) || !pte_present(*pte)) {
local_irq_restore(flags);
return (-1);
@@ -185,7 +198,7 @@ int cf_tlb_miss(struct pt_regs *regs, in
set_pte(pte, pte_mkyoung(*pte));
asid = mm->context & 0xff;
- if (!pte_dirty(*pte) && mmuar<=PAGE_OFFSET)
+ if (!pte_dirty(*pte) && !KERNRAM(mmuar))
set_pte(pte, pte_wrprotect(*pte));
*MMUTR = (mmuar & PAGE_MASK) | (asid << CF_ASID_MMU_SHIFT)
@@ -201,7 +214,8 @@ int cf_tlb_miss(struct pt_regs *regs, in
else
*MMUOR = MMUOR_ITLB | MMUOR_ACC | MMUOR_UAA;
- asm ("nop");
+ asm("nop");
+
/*printk("cf_tlb_miss: va=%lx, pa=%lx\n", (mmuar & PAGE_MASK),
(pte_val(*pte) & PAGE_MASK));*/
local_irq_restore(flags);
--- a/arch/m68k/mm/memory.c
+++ b/arch/m68k/mm/memory.c
@@ -206,7 +206,9 @@ static inline void pushcl040(unsigned lo
void cache_clear (unsigned long paddr, int len)
{
#ifdef CONFIG_COLDFIRE
- cf_cache_clear(paddr, len);
+// JKM -- revise to use proper caching
+// cf_cache_clear(paddr, len);
+ flush_bcache();
#else
if (CPU_IS_040_OR_060) {
int tmp;
@@ -257,7 +259,9 @@ EXPORT_SYMBOL(cache_clear);
void cache_push (unsigned long paddr, int len)
{
#ifdef CONFIG_COLDFIRE
- cf_cache_push(paddr, len);
+// JKM -- revise to use proper caching
+// cf_cache_push(paddr, len);
+ flush_bcache();
#else
if (CPU_IS_040_OR_060) {
int tmp = PAGE_SIZE;
--- a/drivers/net/fec/fec.c
+++ b/drivers/net/fec/fec.c
@@ -99,6 +99,9 @@ unsigned char fec_mac_addr_fec0[6] = { 0
unsigned char fec_mac_addr_fec1[6] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x51 }; // Default address of FEC1
#endif
+extern unsigned char uboot_enet0[];
+extern unsigned char uboot_enet1[];
+
#ifndef MODULE
int fec_str_to_mac( char *str_mac, unsigned char* addr);
int __init fec_mac_setup0 (char *s);
@@ -175,6 +178,12 @@ printk(KERN_INFO "FEI: index=%d\n", inde
printk(KERN_INFO "FEI: txdesc=0x%p rxdesc=0x%p\n", fp->fecpriv_txdesc, fp->fecpriv_rxdesc);
/* mac addr */
+ if (uboot_enet0[0] || uboot_enet0[1] || uboot_enet0[2] ||
+ uboot_enet0[3] || uboot_enet0[4] || uboot_enet0[5]) {
+ /* use uboot enet 0 addr */
+ memcpy(fec_mac_addr_fec0, uboot_enet0, 6);
+ }
+
fp->fecpriv_mac_addr = fec_mac_addr_fec0;
}
else {
@@ -211,6 +220,11 @@ printk(KERN_INFO "FEI: txdesc=0x%p rxde
fp->fecpriv_rxdesc = (void*)FEC_RX_DESC_FEC1;
/* mac addr */
+ if (uboot_enet1[0] || uboot_enet1[1] || uboot_enet1[2] ||
+ uboot_enet1[3] || uboot_enet1[4] || uboot_enet1[5]) {
+ /* use uboot enet 1 addr */
+ memcpy(fec_mac_addr_fec1, uboot_enet1, 6);
+ }
fp->fecpriv_mac_addr = fec_mac_addr_fec1;
#endif
}
@@ -762,7 +776,6 @@ int fec_tx(struct sk_buff *skb, struct n
void *data, *data_aligned;
int offset;
-printk(KERN_INFO "fec_tx\n");
data = kmalloc(skb->len + 15, GFP_DMA | GFP_ATOMIC);
if (!data)
@@ -820,7 +833,6 @@ void fec_tx_timeout(struct net_device *d
struct fec_priv *fp = netdev_priv(dev);
unsigned long base_addr = (unsigned long) dev->base_addr;
-printk(KERN_INFO "fec_tx_timeout\n");
spin_lock_irq(&fp->fecpriv_lock);
MCD_killDma(fp->fecpriv_fec_tx_channel);
for (i = 0; i < FEC_TX_BUF_NUMBER; i++)
@@ -941,7 +953,6 @@ void fec_interrupt_fec_tx_handler(struct
{
struct fec_priv *fp = netdev_priv(dev);
-printk(KERN_INFO "fectxint\n");
//Release the socket buffer
if(fp->fecpriv_txbuf[fp->fecpriv_current_tx])
{
@@ -977,7 +988,6 @@ void fec_interrupt_fec_rx_handler(struct
struct fec_priv *fp = netdev_priv(dev);
struct sk_buff *skb;
-printk(KERN_INFO "fecrxint\n");
fp->fecpriv_rxflag = 1;
/*
// Some buffers can be missed
@@ -1070,7 +1080,6 @@ irqreturn_t fec_interrupt_handler(int ir
unsigned long base_addr = (unsigned long) dev->base_addr;
unsigned long events;
-printk(KERN_INFO "fecerrint\n");
// Read and clear the events
events = FEC_EIR(base_addr) & FEC_EIMR(base_addr);
@@ -1157,7 +1166,6 @@ void fec_interrupt_fec_reinit(unsigned l
struct fec_priv *fp = netdev_priv(dev);
unsigned long base_addr = (unsigned long) dev->base_addr;
-printk(KERN_INFO "fecreinit\n");
// Initialize reception descriptors and start DMA for the reception
for (i = 0; i < FEC_RX_BUF_NUMBER; i++)
{
--- a/include/asm-m68k/bootinfo.h
+++ b/include/asm-m68k/bootinfo.h
@@ -19,11 +19,59 @@
** Redesign of the boot information structure; renamed to bootinfo.h again
** 27/11/96 Geert Uytterhoeven:
** Backwards compatibility with bootinfo interface version 1.0
+** 12/03/08 Kurt Mahan
+** Copy the bd_info structure from uboot1.3.2/include/asm-m68k/u-boot.h
+** into this file. The original author is Wolfgang Denk,
+** DENX Software Engineering, wd@denx.de.
*/
#ifndef _M68K_BOOTINFO_H
#define _M68K_BOOTINFO_H
+#ifndef __ASSEMBLY__
+/*
+ * UBoot Support
+ *
+ * bd_info structure from uboot1.3.2/include/asm-m68k/u-boot.h
+ */
+struct bd_info {
+ unsigned long bi_memstart; /* start of DRAM memory */
+ unsigned long bi_memsize; /* size of DRAM memory in bytes */
+ unsigned long bi_flashstart; /* start of FLASH memory */
+ unsigned long bi_flashsize; /* size of FLASH memory */
+ unsigned long bi_flashoffset; /* reserved area for startup monitor */
+ unsigned long bi_sramstart; /* start of SRAM memory */
+ unsigned long bi_sramsize; /* size of SRAM memory */
+ unsigned long bi_mbar_base; /* base of internal registers */
+ unsigned long bi_bootflags; /* boot / reboot flag (for LynxOS) */
+ unsigned long bi_boot_params; /* where this board expects params */
+ unsigned long bi_ip_addr; /* IP Address */
+ unsigned char bi_enet0addr[6]; /* Ethernet 0 mac address */
+ unsigned short bi_ethspeed; /* Ethernet speed in Mbps */
+ unsigned long bi_intfreq; /* Internal Freq, in MHz */
+ unsigned long bi_busfreq; /* Bus Freq, in MHz */
+#ifdef UBOOT_PCI
+ unsigned long bi_pcifreq; /* pci Freq in MHz */
+#endif
+#ifdef UBOOT_EXTRA_CLOCK
+ unsigned long bi_inpfreq; /* input Freq in MHz */
+ unsigned long bi_vcofreq; /* vco Freq in MHz */
+ unsigned long bi_flbfreq; /* Flexbus Freq in MHz */
+#endif
+ unsigned long bi_baudrate; /* Console Baudrate */
+ unsigned char bi_enet1addr[6]; /* eth1 mac address */
+ unsigned char bi_enet2addr[6]; /* eth2 mac address */
+ unsigned char bi_enet3addr[6]; /* eth3 mac address */
+};
+
+struct uboot_record {
+ struct bd_info *bdi;
+ unsigned long initrd_start;
+ unsigned long initrd_end;
+ unsigned long cmd_line_start;
+ unsigned long cmd_line_stop;
+};
+#endif /* __ASSEMBLY__ */
/*
* Bootinfo definitions
@@ -49,17 +97,6 @@ struct bi_record {
#endif /* __ASSEMBLY__ */
-#ifndef __ASSEMBLY__
-
-struct uboot_record {
- unsigned long bd_info;
- unsigned long initrd_start;
- unsigned long initrd_end;
- unsigned long cmd_line_start;
- unsigned long cmd_line_stop;
-};
-
-#endif /* __ASSEMBLY__ */
/*
--- a/include/asm-m68k/cf_cacheflush.h
+++ b/include/asm-m68k/cf_cacheflush.h
@@ -1,335 +1,92 @@
-/*
- * include/asm-m68k/cf_cacheflush.h - Coldfire Cache
- *
- * Based on include/asm-m68k/cacheflush.h
- *
- * Coldfire pieces by:
- * Kurt Mahan kmahan@freescale.com
- *
- * Copyright Freescale Semiconductor, Inc. 2007
- *
- * 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.
- */
#ifndef M68K_CF_CACHEFLUSH_H
#define M68K_CF_CACHEFLUSH_H
#include <asm/cfcache.h>
-
/*
- * Coldfire Cache Model
- *
- * The Coldfire processors use a Harvard architecture cache configured
- * as four-way set associative. The cache does not implement bus snooping
- * so cache coherency with other masters must be maintained in software.
- *
- * The cache is managed via the CPUSHL instruction in conjunction with
- * bits set in the CACR (cache control register). Currently the code
- * uses the CPUSHL enhancement which adds the ability to
- * invalidate/clear/push a cacheline by physical address. This feature
- * is designated in the Hardware Configuration Register [D1-CPES].
- *
- * CACR Bits:
- * DPI[28] cpushl invalidate disable for d-cache
- * IDPI[12] cpushl invalidate disable for i-cache
- * SPA[14] cpushl search by physical address
- * IVO[20] cpushl invalidate only
- *
- * Random Terminology:
- * * invalidate = reset the cache line's valid bit
- * * push = generate a line-sized store of the data if its contents are marked
- * as modifed (the modified flag is cleared after the store)
- * * clear = push + invalidate
- */
-
-/**
- * flush_icache - Flush all of the instruction cache
- */
-static inline void flush_icache(void)
-{
- asm volatile("nop\n"
- "moveq%.l #0,%%d0\n"
- "moveq%.l #0,%%d1\n"
- "move%.l %%d0,%%a0\n"
- "1:\n"
- "cpushl %%ic,(%%a0)\n"
- "add%.l #0x0010,%%a0\n"
- "addq%.l #1,%%d1\n"
- "cmpi%.l %0,%%d1\n"
- "bne 1b\n"
- "moveq%.l #0,%%d1\n"
- "addq%.l #1,%%d0\n"
- "move%.l %%d0,%%a0\n"
- "cmpi%.l #4,%%d0\n"
- "bne 1b\n"
- : : "i" (CACHE_SETS)
- : "a0", "d0", "d1");
-}
-
-/**
- * flush_dcache - Flush all of the data cache
- */
-static inline void flush_dcache(void)
-{
- asm volatile("nop\n"
- "moveq%.l #0,%%d0\n"
- "moveq%.l #0,%%d1\n"
- "move%.l %%d0,%%a0\n"
- "1:\n"
- "cpushl %%dc,(%%a0)\n"
- "add%.l #0x0010,%%a0\n"
- "addq%.l #1,%%d1\n"
- "cmpi%.l %0,%%d1\n"
- "bne 1b\n"
- "moveq%.l #0,%%d1\n"
- "addq%.l #1,%%d0\n"
- "move%.l %%d0,%%a0\n"
- "cmpi%.l #4,%%d0\n"
- "bne 1b\n"
- : : "i" (CACHE_SETS)
- : "a0", "d0", "d1");
-}
-
-/**
- * flush_bcache - Flush all of both caches
+ * Cache handling functions
*/
-static inline void flush_bcache(void)
-{
- asm volatile("nop\n"
- "moveq%.l #0,%%d0\n"
- "moveq%.l #0,%%d1\n"
- "move%.l %%d0,%%a0\n"
- "1:\n"
- "cpushl %%bc,(%%a0)\n"
- "add%.l #0x0010,%%a0\n"
- "addq%.l #1,%%d1\n"
- "cmpi%.l %0,%%d1\n"
- "bne 1b\n"
- "moveq%.l #0,%%d1\n"
- "addq%.l #1,%%d0\n"
- "move%.l %%d0,%%a0\n"
- "cmpi%.l #4,%%d0\n"
- "bne 1b\n"
- : : "i" (CACHE_SETS)
- : "a0", "d0", "d1");
-}
-/**
- * cf_cache_clear - invalidate cache
- * @paddr: starting physical address
- * @len: number of bytes
- *
- * Invalidate cache lines starting at paddr for len bytes.
- * Those lines are not pushed.
- */
-static inline void cf_cache_clear(unsigned long paddr, int len)
-{
- /* number of lines */
- len = (len + (CACHE_LINE_SIZE-1)) / CACHE_LINE_SIZE;
- if (len == 0)
- return;
-
- /* align on set boundary */
- paddr &= 0xfffffff0;
-
- asm volatile("nop\n"
- "move%.l %2,%%d0\n"
- "or%.l %3,%%d0\n"
- "movec %%d0,%%cacr\n"
- "move%.l %0,%%a0\n"
- "move%.l %1,%%d0\n"
- "1:\n"
- "cpushl %%bc,(%%a0)\n"
- "lea 0x10(%%a0),%%a0\n"
- "subq%.l #1,%%d0\n"
- "bne%.b 1b\n"
- "movec %2,%%cacr\n"
- : : "a" (paddr), "r" (len),
- "r" (shadow_cacr),
- "i" (CF_CACR_SPA+CF_CACR_IVO)
- : "a0", "d0");
-}
-
-/**
- * cf_cache_push - Push dirty cache out with no invalidate
- * @paddr: starting physical address
- * @len: number of bytes
- *
- * Push the any dirty lines starting at paddr for len bytes.
- * Those lines are not invalidated.
- */
-static inline void cf_cache_push(unsigned long paddr, int len)
-{
- /* number of lines */
- len = (len + (CACHE_LINE_SIZE-1)) / CACHE_LINE_SIZE;
- if (len == 0)
- return;
-
- /* align on set boundary */
- paddr &= 0xfffffff0;
-
- asm volatile("nop\n"
- "move%.l %2,%%d0\n"
- "or%.l %3,%%d0\n"
- "movec %%d0,%%cacr\n"
- "move%.l %0,%%a0\n"
- "move%.l %1,%%d0\n"
- "1:\n"
- "cpushl %%bc,(%%a0)\n"
- "lea 0x10(%%a0),%%a0\n"
- "subq%.l #1,%%d0\n"
- "bne.b 1b\n"
- "movec %2,%%cacr\n"
- : : "a" (paddr), "r" (len),
- "r" (shadow_cacr),
- "i" (CF_CACR_SPA+CF_CACR_DPI+CF_CACR_IDPI)
- : "a0", "d0");
-}
+#define flush_icache() \
+({ \
+ unsigned long set; \
+ unsigned long start_set; \
+ unsigned long end_set; \
+ \
+ start_set = 0; \
+ end_set = (unsigned long)LAST_DCACHE_ADDR; \
+ \
+ for (set = start_set; set <= end_set; set += (0x10 - 3)) { \
+ asm volatile("cpushl %%ic,(%0)\n" \
+ "\taddq%.l #1,%0\n" \
+ "\tcpushl %%ic,(%0)\n" \
+ "\taddq%.l #1,%0\n" \
+ "\tcpushl %%ic,(%0)\n" \
+ "\taddq%.l #1,%0\n" \
+ "\tcpushl %%ic,(%0)" : "=a" (set) : "a" (set)); \
+ } \
+})
+
+#define flush_dcache() \
+({ \
+ unsigned long set; \
+ unsigned long start_set; \
+ unsigned long end_set; \
+ \
+ start_set = 0; \
+ end_set = (unsigned long)LAST_DCACHE_ADDR; \
+ \
+ for (set = start_set; set <= end_set; set += (0x10 - 3)) { \
+ asm volatile("cpushl %%dc,(%0)\n" \
+ "\taddq%.l #1,%0\n" \
+ "\tcpushl %%dc,(%0)\n" \
+ "\taddq%.l #1,%0\n" \
+ "\tcpushl %%dc,(%0)\n" \
+ "\taddq%.l #1,%0\n" \
+ "\tcpushl %%dc,(%0)" : "=a" (set) : "a" (set)); \
+ } \
+})
+
+#define flush_bcache() \
+({ \
+ unsigned long set; \
+ unsigned long start_set; \
+ unsigned long end_set; \
+ \
+ start_set = 0; \
+ end_set = (unsigned long)LAST_DCACHE_ADDR; \
+ \
+ for (set = start_set; set <= end_set; set += (0x10 - 3)) { \
+ asm volatile("cpushl %%bc,(%0)\n" \
+ "\taddq%.l #1,%0\n" \
+ "\tcpushl %%bc,(%0)\n" \
+ "\taddq%.l #1,%0\n" \
+ "\tcpushl %%bc,(%0)\n" \
+ "\taddq%.l #1,%0\n" \
+ "\tcpushl %%bc,(%0)" : "=a" (set) : "a" (set)); \
+ } \
+})
-/**
- * cf_cache_flush - Push dirty cache out and invalidate
- * @paddr: starting physical address
- * @len: number of bytes
- *
- * Push the any dirty lines starting at paddr for len bytes and
- * invalidate those lines.
+/*
+ * invalidate the cache for the specified memory range.
+ * It starts at the physical address specified for
+ * the given number of bytes.
*/
-static inline void cf_cache_flush(unsigned long paddr, int len)
-{
- /* number of lines */
- len = (len + (CACHE_LINE_SIZE-1)) / CACHE_LINE_SIZE;
- if (len == 0)
- return;
-
- /* align on set boundary */
- paddr &= 0xfffffff0;
-
- asm volatile("nop\n"
- "move%.l %2,%%d0\n"
- "or%.l %3,%%d0\n"
- "movec %%d0,%%cacr\n"
- "move%.l %0,%%a0\n"
- "move%.l %1,%%d0\n"
- "1:\n"
- "cpushl %%bc,(%%a0)\n"
- "lea 0x10(%%a0),%%a0\n"
- "subq%.l #1,%%d0\n"
- "bne.b 1b\n"
- "movec %2,%%cacr\n"
- : : "a" (paddr), "r" (len),
- "r" (shadow_cacr),
- "i" (CF_CACR_SPA)
- : "a0", "d0");
-}
-
-/**
- * cf_cache_flush_range - Push dirty data/inst cache in range out and invalidate
- * @vstart - starting virtual address
- * @vend: ending virtual address
- *
- * Push the any dirty data/instr lines starting at paddr for len bytes and
- * invalidate those lines.
+extern void cache_clear(unsigned long paddr, int len);
+/*
+ * push any dirty cache in the specified memory range.
+ * It starts at the physical address specified for
+ * the given number of bytes.
*/
-static inline void cf_cache_flush_range(unsigned long vstart, unsigned long vend)
-{
- int len;
-
- /* align on set boundary */
- vstart &= 0xfffffff0;
- vend = PAGE_ALIGN((vend + (CACHE_LINE_SIZE-1))) & 0xfffffff0;
- len = vend - vstart;
- if (len == 0)
- return;
- vstart = __pa(vstart);
- vend = vstart + len;
-
- asm volatile("nop\n"
- "move%.l %2,%%d0\n"
- "or%.l %3,%%d0\n"
- "movec %%d0,%%cacr\n"
- "move%.l %0,%%a0\n"
- "move%.l %1,%%a1\n"
- "1:\n"
- "cpushl %%bc,(%%a0)\n"
- "lea 0x10(%%a0),%%a0\n"
- "cmpa%.l %%a0,%%a1\n"
- "bne.b 1b\n"
- "movec %2,%%cacr\n"
- : /* no return */
- : "a" (vstart), "a" (vend),
- "r" (shadow_cacr),
- "i" (CF_CACR_SPA)
- : "a0", "a1", "d0");
-}
+extern void cache_push(unsigned long paddr, int len);
-/**
- * cf_dcache_flush_range - Push dirty data cache in range out and invalidate
- * @vstart - starting virtual address
- * @vend: ending virtual address
- *
- * Push the any dirty data lines starting at paddr for len bytes and
- * invalidate those lines.
+/*
+ * push and invalidate pages in the specified user virtual
+ * memory range.
*/
-static inline void cf_dcache_flush_range(unsigned long vstart, unsigned long vend)
-{
- /* align on set boundary */
- vstart &= 0xfffffff0;
- vend = (vend + (CACHE_LINE_SIZE-1)) & 0xfffffff0;
-
- asm volatile("nop\n"
- "move%.l %2,%%d0\n"
- "or%.l %3,%%d0\n"
- "movec %%d0,%%cacr\n"
- "move%.l %0,%%a0\n"
- "move%.l %1,%%a1\n"
- "1:\n"
- "cpushl %%dc,(%%a0)\n"
- "lea 0x10(%%a0),%%a0\n"
- "cmpa%.l %%a0,%%a1\n"
- "bne.b 1b\n"
- "movec %2,%%cacr\n"
- : /* no return */
- : "a" (__pa(vstart)), "a" (__pa(vend)),
- "r" (shadow_cacr),
- "i" (CF_CACR_SPA)
- : "a0", "a1", "d0");
-}
+extern void cache_push_v(unsigned long vaddr, int len);
-/**
- * cf_icache_flush_range - Push dirty inst cache in range out and invalidate
- * @vstart - starting virtual address
- * @vend: ending virtual address
- *
- * Push the any dirty instr lines starting at paddr for len bytes and
- * invalidate those lines. This should just be an invalidate since you
- * shouldn't be able to have dirty instruction cache.
- */
-static inline void cf_icache_flush_range(unsigned long vstart, unsigned long vend)
-{
- /* align on set boundary */
- vstart &= 0xfffffff0;
- vend = (vend + (CACHE_LINE_SIZE-1)) & 0xfffffff0;
-
- asm volatile("nop\n"
- "move%.l %2,%%d0\n"
- "or%.l %3,%%d0\n"
- "movec %%d0,%%cacr\n"
- "move%.l %0,%%a0\n"
- "move%.l %1,%%a1\n"
- "1:\n"
- "cpushl %%ic,(%%a0)\n"
- "lea 0x10(%%a0),%%a0\n"
- "cmpa%.l %%a0,%%a1\n"
- "bne.b 1b\n"
- "movec %2,%%cacr\n"
- : /* no return */
- : "a" (__pa(vstart)), "a" (__pa(vend)),
- "r" (shadow_cacr),
- "i" (CF_CACR_SPA)
- : "a0", "a1", "d0");
-}
+/* This is needed whenever the virtual mapping of the current
+ process changes. */
/**
* flush_cache_mm - Flush an mm_struct
@@ -343,6 +100,8 @@ static inline void flush_cache_mm(struct
#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
+#define flush_cache_all() flush_bcache()
+
/**
* flush_cache_range - Flush a cache range
* @vma: vma struct
@@ -356,7 +115,8 @@ static inline void flush_cache_range(str
unsigned long start, unsigned long end)
{
if (vma->vm_mm == current->mm)
- cf_cache_flush_range(start, end);
+ flush_bcache();
+// cf_cache_flush_range(start, end);
}
/**
@@ -372,76 +132,113 @@ static inline void flush_cache_page(stru
unsigned long vmaddr, unsigned long pfn)
{
if (vma->vm_mm == current->mm)
- cf_cache_flush_range(vmaddr, vmaddr+PAGE_SIZE);
+ flush_bcache();
+// cf_cache_flush_range(vmaddr, vmaddr+PAGE_SIZE);
}
-/**
- * __flush_page_to_ram - Push a page out of the cache
- * @vaddr: Virtual address at start of page
- *
- * Push the page at kernel virtual address *vaddr* and clear
- * the icache.
- */
-static inline void __flush_page_to_ram(void *vaddr)
-{
- asm volatile("nop\n"
- "move%.l %2,%%d0\n"
- "or%.l %3,%%d0\n"
- "movec %%d0,%%cacr\n"
- "move%.l %0,%%d0\n"
- "and%.l #0xfffffff0,%%d0\n"
- "move%.l %%d0,%%a0\n"
- "move%.l %1,%%d0\n"
- "1:\n"
- "cpushl %%bc,(%%a0)\n"
- "lea 0x10(%%a0),%%a0\n"
- "subq%.l #1,%%d0\n"
- "bne.b 1b\n"
- "movec %2,%%cacr\n"
- : : "a" (__pa(vaddr)), "i" (PAGE_SIZE / CACHE_LINE_SIZE),
- "r" (shadow_cacr), "i" (CF_CACR_SPA)
- : "a0", "d0");
+/* Push the page at kernel virtual address and clear the icache */
+/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */
+#define flush_page_to_ram(page) __flush_page_to_ram((void *) page_address(page))
+extern inline void __flush_page_to_ram(void *address)
+{
+ unsigned long set;
+ unsigned long start_set;
+ unsigned long end_set;
+ unsigned long addr = (unsigned long) address;
+
+ addr &= ~(PAGE_SIZE - 1); /* round down to page start address */
+
+ start_set = addr & _ICACHE_SET_MASK;
+ end_set = (addr + PAGE_SIZE-1) & _ICACHE_SET_MASK;
+
+ if (start_set > end_set) {
+ /* from the begining to the lowest address */
+ for (set = 0; set <= end_set; set += (0x10 - 3)) {
+ asm volatile("cpushl %%bc,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%bc,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%bc,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%bc,(%0)" : "=a" (set) : "a" (set));
+ }
+ /* next loop will finish the cache ie pass the hole */
+ end_set = LAST_ICACHE_ADDR;
+ }
+ for (set = start_set; set <= end_set; set += (0x10 - 3)) {
+ asm volatile("cpushl %%bc,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%bc,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%bc,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%bc,(%0)" : "=a" (set) : "a" (set));
+ }
+}
+
+/* Use __flush_page_to_ram() for flush_dcache_page all values are same - MW */
+#define flush_dcache_page(page) \
+ __flush_page_to_ram((void *) page_address(page))
+#define flush_icache_page(vma,pg) \
+ __flush_page_to_ram((void *) page_address(pg))
+#define flush_icache_user_range(adr,len) do { } while (0)
+/* NL */
+#define flush_icache_user_page(vma,page,addr,len) do { } while (0)
+
+/* Push n pages at kernel virtual address and clear the icache */
+/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */
+extern inline void flush_icache_range (unsigned long address,
+ unsigned long endaddr)
+{
+ unsigned long set;
+ unsigned long start_set;
+ unsigned long end_set;
+
+ start_set = address & _ICACHE_SET_MASK;
+ end_set = endaddr & _ICACHE_SET_MASK;
+
+ if (start_set > end_set) {
+ /* from the begining to the lowest address */
+ for (set = 0; set <= end_set; set += (0x10 - 3)) {
+ asm volatile("cpushl %%ic,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%ic,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%ic,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%ic,(%0)" : "=a" (set) : "a" (set));
+ }
+ /* next loop will finish the cache ie pass the hole */
+ end_set = LAST_ICACHE_ADDR;
+ }
+ for (set = start_set; set <= end_set; set += (0x10 - 3)) {
+ asm volatile("cpushl %%ic,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%ic,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%ic,(%0)\n"
+ "\taddq%.l #1,%0\n"
+ "\tcpushl %%ic,(%0)" : "=a" (set) : "a" (set));
+ }
}
-/*
- * Various defines for the kernel.
- */
-
-extern void cache_clear(unsigned long paddr, int len);
-extern void cache_push(unsigned long paddr, int len);
-extern void flush_icache_range(unsigned long address, unsigned long endaddr);
-
-#define flush_cache_all() flush_bcache()
-#define flush_cache_vmap(start, end) flush_bcache()
-#define flush_cache_vunmap(start, end) flush_bcache()
-
-#define flush_dcache_range(vstart, vend) cf_dcache_flush_range(vstart, vend)
-#define flush_dcache_page(page) __flush_page_to_ram(page_address(page))
-#define flush_dcache_mmap_lock(mapping) do { } while (0)
-#define flush_dcache_mmap_unlock(mapping) do { } while (0)
-
-#define flush_icache_page(vma, page) __flush_page_to_ram(page_address(page))
-
-/**
- * copy_to_user_page - Copy memory to user page
- */
static inline void copy_to_user_page(struct vm_area_struct *vma,
struct page *page, unsigned long vaddr,
void *dst, void *src, int len)
{
memcpy(dst, src, len);
- cf_cache_flush(page_to_phys(page), PAGE_SIZE);
+ flush_icache_user_page(vma, page, vaddr, len);
}
-
-/**
- * copy_from_user_page - Copy memory from user page
- */
static inline void copy_from_user_page(struct vm_area_struct *vma,
struct page *page, unsigned long vaddr,
void *dst, void *src, int len)
{
- cf_cache_flush(page_to_phys(page), PAGE_SIZE);
memcpy(dst, src, len);
}
+#define flush_cache_vmap(start, end) flush_cache_all()
+#define flush_cache_vunmap(start, end) flush_cache_all()
+#define flush_dcache_mmap_lock(mapping) do { } while (0)
+#define flush_dcache_mmap_unlock(mapping) do { } while (0)
+
#endif /* M68K_CF_CACHEFLUSH_H */
--- a/include/asm-m68k/cf_pgalloc.h
+++ b/include/asm-m68k/cf_pgalloc.h
@@ -1,13 +1,9 @@
#ifndef M68K_CF_PGALLOC_H
#define M68K_CF_PGALLOC_H
-/* JKM -- added -- needed? */
-#include <linux/highmem.h>
-
#include <asm/coldfire.h>
#include <asm/page.h>
#include <asm/cf_tlbflush.h>
-/* JKM -- added -- needed? */
#include <asm/cf_cacheflush.h>
extern inline void pte_free_kernel(pte_t *pte)
@@ -41,6 +37,7 @@ extern inline pmd_t *pmd_alloc_kernel(pg
#define pmd_populate(mm, pmd, page) (pmd_val(*pmd) = \
(unsigned long)(page_address(page)))
+
#define pmd_populate_kernel(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte))
static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *page)
--- a/include/asm-m68k/cf_pgtable.h
+++ b/include/asm-m68k/cf_pgtable.h
@@ -341,7 +341,7 @@ static inline pte_t pgoff_to_pte(unsigne
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) (__pte((x).val))
-#define pmd_page(pmd) virt_to_page(__pmd_page(pmd))
+#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
#define pte_offset_map(pmdp, address) ((pte_t *)__pmd_page(*pmdp) + \
__pte_offset(address))
--- a/include/asm-m68k/cfcache.h
+++ b/include/asm-m68k/cfcache.h
@@ -87,6 +87,12 @@
#define CACHE_SETS 0x0200 /* 512 sets */
#define CACHE_WAYS 0x0004 /* 4 way */
+/* in for the old cpushl caching code */
+#define _DCACHE_SET_MASK ((DCACHE_SIZE/64-1)<<CACHE_WAYS)
+#define _ICACHE_SET_MASK ((ICACHE_SIZE/64-1)<<CACHE_WAYS)
+#define LAST_DCACHE_ADDR _DCACHE_SET_MASK
+#define LAST_ICACHE_ADDR _ICACHE_SET_MASK
+
#define CACHE_DISABLE_MODE (CF_CACR_DCINVA+ \
CF_CACR_BCINVA+ \
CF_CACR_ICINVA)
--- a/include/asm-m68k/page.h
+++ b/include/asm-m68k/page.h
@@ -123,13 +123,21 @@ extern unsigned long m68k_memoffset;
#if defined(CONFIG_COLDFIRE)
static inline unsigned long ___pa(void *vaddr)
{
+#if CONFIG_SDRAM_BASE != PAGE_OFFSET
return (((unsigned long)vaddr & 0x0fffffff) + CONFIG_SDRAM_BASE);
+#else
+ return (unsigned long)vaddr;
+#endif
}
#define __pa(vaddr) ___pa((void *)(vaddr))
static inline void *__va(unsigned long paddr)
{
+#if CONFIG_SDRAM_BASE != PAGE_OFFSET
return (void *)((paddr & 0x0fffffff) + PAGE_OFFSET);
+#else
+ return (void *)paddr;
+#endif
}
#else
--- a/include/asm-m68k/page_offset.h
+++ b/include/asm-m68k/page_offset.h
@@ -1,16 +1,15 @@
+/*
+ * Page and physical memory maps.
+ */
+#if defined(CONFIG_SUN3)
+#define PAGE_OFFSET_RAW 0x0E000000
+
+#elif defined(CONFIG_M54455) || defined(CONFIG_M547X_8X)
+#define PHYS_OFFSET CONFIG_SDRAM_BASE
+#define PAGE_OFFSET_RAW (PHYS_OFFSET)
+/* #define PAGE_OFFSET_RAW 0xC0000000 */
-/* This handles the memory map.. */
-#if !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE)
+#else
+/* default */
#define PAGE_OFFSET_RAW 0x00000000
-#elif defined(CONFIG_SUN3)
-#define PAGE_OFFSET_RAW 0x0E000000
-#else /* CONFIG_COLDFIRE */
-#if defined(CONFIG_M54455)
-#define PAGE_OFFSET_RAW 0xC0000000
-#define PHYS_OFFSET 0x40000000
-#elif defined(CONFIG_M547X_8X)
-#define PAGE_OFFSET_RAW 0xC0000000
-#define PHYS_OFFSET 0x00000000
#endif
-#endif
-
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