CFE-ready mtd driver, needs fixing though, update kernel config
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6617 3c298f89-4303-0410-b956-a3cf2f4a3e73master
Florian Fainelli
parent
b06166c90f
commit
61b8f04be9
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@ -76,26 +76,10 @@ CONFIG_CRYPTO_HASH=y
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CONFIG_CRYPTO_HMAC=y
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CONFIG_CRYPTO_SHA1=y
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# CONFIG_DDB5477 is not set
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# CONFIG_DEBUG_DRIVER is not set
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# CONFIG_DEBUG_INFO is not set
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CONFIG_DEBUG_KERNEL=y
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# CONFIG_DEBUG_KOBJECT is not set
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# CONFIG_DEBUG_LIST is not set
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CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
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# CONFIG_DEBUG_LOCK_ALLOC is not set
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# CONFIG_DEBUG_MUTEXES is not set
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# CONFIG_DEBUG_RT_MUTEXES is not set
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# CONFIG_DEBUG_RWSEMS is not set
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# CONFIG_DEBUG_SLAB is not set
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# CONFIG_DEBUG_SPINLOCK is not set
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# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
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# CONFIG_DEBUG_STACK_USAGE is not set
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# CONFIG_DEBUG_VM is not set
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CONFIG_DEFAULT_CFQ=y
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# CONFIG_DEFAULT_DEADLINE is not set
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CONFIG_DEFAULT_IOSCHED="cfq"
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CONFIG_DEFAULT_TCP_CONG="cubic"
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CONFIG_DETECT_SOFTLOCKUP=y
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# CONFIG_DM9000 is not set
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CONFIG_DMA_NEED_PCI_MAP_STATE=y
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CONFIG_DMA_NONCOHERENT=y
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@ -103,7 +87,6 @@ CONFIG_ELF_CORE=y
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# CONFIG_EXT2_FS is not set
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# CONFIG_EXT3_FS is not set
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CONFIG_FIRMWARE_EDID=y
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CONFIG_FORCED_INLINING=y
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CONFIG_FS_POSIX_ACL=y
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CONFIG_FW_LOADER=m
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CONFIG_GENERIC_ACL=y
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@ -166,7 +149,6 @@ CONFIG_JFFS2_FS_SECURITY=y
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CONFIG_JFFS2_FS_XATTR=y
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CONFIG_JFFS2_SUMMARY=y
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# CONFIG_JFS_FS is not set
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# CONFIG_KGDB is not set
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CONFIG_LEDS_CLASS=m
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CONFIG_LEDS_TRIGGER_HEARTBEAT=m
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CONFIG_LEDS_TRIGGER_TIMER=m
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@ -206,7 +188,6 @@ CONFIG_MIPS_MT_DISABLED=y
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# CONFIG_MIPS_PB1550 is not set
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# CONFIG_MIPS_SEAD is not set
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# CONFIG_MIPS_SIM is not set
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# CONFIG_MIPS_UNCACHED is not set
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# CONFIG_MIPS_VPE_LOADER is not set
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# CONFIG_MIPS_XXS1500 is not set
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CONFIG_MODULE_FORCE_UNLOAD=y
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@ -320,7 +301,6 @@ CONFIG_PAGE_SIZE_4KB=y
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# CONFIG_PARTITION_ADVANCED is not set
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# CONFIG_PCCARD is not set
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CONFIG_PCI_ADM5120=y
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# CONFIG_PCI_DEBUG is not set
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# CONFIG_PMC_YOSEMITE is not set
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# CONFIG_PNX8550_JBS is not set
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# CONFIG_PNX8550_V2PCI is not set
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@ -333,16 +313,11 @@ CONFIG_PPPOE=y
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# CONFIG_PPP_MPPE is not set
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# CONFIG_PPP_MULTILINK is not set
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# CONFIG_PPP_SYNC_TTY is not set
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# CONFIG_PROVE_LOCKING is not set
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# CONFIG_RCU_TORTURE_TEST is not set
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# CONFIG_REISERFS_FS is not set
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CONFIG_RELAY=y
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# CONFIG_ROMFS_FS is not set
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# CONFIG_RTC is not set
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# CONFIG_RT_MUTEX_TESTER is not set
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# CONFIG_RUNTIME_DEBUG is not set
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CONFIG_RWSEM_GENERIC_SPINLOCK=y
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# CONFIG_SCHEDSTATS is not set
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CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
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# CONFIG_SCSI is not set
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# CONFIG_SENSORS_ABITUGURU is not set
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@ -1,7 +1,8 @@
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/*
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* Flash device on the ADM5120 board
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*
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* Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
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* Copyright Florian Fainelli <florian@openwrt.org>
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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@ -13,43 +14,221 @@
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#include <linux/kernel.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/partitions.h>
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#include <linux/vmalloc.h>
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#define FLASH_PHYS_ADDR 0x1FC00000
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#define FLASH_SIZE 0x200000
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#define FLASH_SIZE 0x400000
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#define IMAGE_LEN 10 /* Length of Length Field */
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#define ADDRESS_LEN 12 /* Length of Address field */
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#define EXTENDED_SIZE 0xBFC00000 /* Extended flash address */
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#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
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static struct mtd_info *adm5120_mtd;
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static struct mtd_partition *parsed_parts;
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static struct map_info adm5120_mtd_map = {
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.name = "ADM5120",
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.name = "adm5120",
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.size = FLASH_SIZE,
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.bankwidth = 2,
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.phys = FLASH_PHYS_ADDR,
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};
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static int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts)
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{
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int nrparts = 2, curpart = 0; // CFE and NVRAM always present.
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struct adm5120_cfe_map {
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unsigned char tagVersion[4]; // Version of the image tag
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unsigned char sig_1[20]; // Company Line 1
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unsigned char sig_2[14]; // Company Line 2
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unsigned char chipid[6]; // Chip this image is for
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unsigned char boardid[16]; // Board name
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unsigned char bigEndian[2]; // Map endianness -- 1 BE 0 LE
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unsigned char totalLength[IMAGE_LEN]; //Total length of image
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unsigned char cfeAddress[ADDRESS_LEN]; // Address in memory of CFE
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unsigned char cfeLength[IMAGE_LEN]; // Size of CFE
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unsigned char rootAddress[ADDRESS_LEN]; // Address in memory of rootfs
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unsigned char rootLength[IMAGE_LEN]; // Size of rootfs
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unsigned char kernelAddress[ADDRESS_LEN]; // Address in memory of kernel
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unsigned char kernelLength[IMAGE_LEN]; // Size of kernel
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unsigned char dualImage[2]; // Unused at present
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unsigned char inactiveFlag[2]; // Unused at present
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unsigned char reserved1[74]; // Reserved area not in use
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unsigned char imageCRC[4]; // CRC32 of images
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unsigned char reserved2[16]; // Unused at present
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unsigned char headerCRC[4]; // CRC32 of header excluding tagVersion
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unsigned char reserved3[16]; // Unused at present
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} *buf;
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struct mtd_partition *parts;
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int ret;
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size_t retlen;
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unsigned int rootfsaddr, kerneladdr, spareaddr;
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unsigned int rootfslen, kernellen, sparelen, totallen;
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int namelen = 0;
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int i;
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// Allocate memory for buffer
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buf = vmalloc(sizeof(struct adm5120_cfe_map));
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if (!buf)
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return -ENOMEM;
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// Get the tag
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ret = master->read(master,master->erasesize,sizeof(struct adm5120_cfe_map), &retlen, (void *)buf);
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if (retlen != sizeof(struct adm5120_cfe_map)){
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vfree(buf);
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return -EIO;
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};
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printk("adm5120: CFE boot tag found with version %s and board type %s.\n",buf->tagVersion,buf->boardid);
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// Get the values and calculate
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sscanf(buf->rootAddress,"%u", &rootfsaddr);
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rootfsaddr = rootfsaddr - EXTENDED_SIZE;
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sscanf(buf->rootLength, "%u", &rootfslen);
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sscanf(buf->kernelAddress, "%u", &kerneladdr);
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kerneladdr = kerneladdr - EXTENDED_SIZE;
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sscanf(buf->kernelLength, "%u", &kernellen);
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sscanf(buf->totalLength, "%u", &totallen);
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spareaddr = ROUNDUP(totallen,master->erasesize) + master->erasesize;
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sparelen = master->size - spareaddr - master->erasesize;
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// Determine number of partitions
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namelen = 8;
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if (rootfslen > 0){
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nrparts++;
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namelen =+ 6;
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};
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if (kernellen > 0){
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nrparts++;
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namelen =+ 6;
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};
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if (sparelen > 0){
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nrparts++;
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namelen =+ 6;
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};
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// Ask kernel for more memory.
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parts = kmalloc(sizeof(*parts)*nrparts+10*nrparts, GFP_KERNEL);
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if (!parts){
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vfree(buf);
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return -ENOMEM;
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};
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memset(parts,0,sizeof(*parts)*nrparts+10*nrparts);
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// Start building partition list
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parts[curpart].name = "CFE";
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parts[curpart].offset = 0;
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parts[curpart].size = master->erasesize;
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curpart++;
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if (kernellen > 0) {
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parts[curpart].name = "Kernel";
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parts[curpart].offset = kerneladdr;
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parts[curpart].size = kernellen;
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curpart++;
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};
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if (rootfslen > 0) {
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parts[curpart].name = "Rootfs";
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parts[curpart].offset = rootfsaddr;
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parts[curpart].size = rootfslen;
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curpart++;
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};
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if (sparelen > 0){
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parts[curpart].name = "OpenWrt";
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parts[curpart].offset = spareaddr;
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parts[curpart].size = sparelen;
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curpart++;
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};
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parts[curpart].name = "NVRAM";
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parts[curpart].offset = master->size - master->erasesize;
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parts[curpart].size = master->erasesize;
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for (i = 0; i < nrparts; i++) {
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printk("adm5120: Partition %d is %s offset %x and length %x\n", i, parts[i].name, parts[i].offset, parts[i].size);
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}
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*pparts = parts;
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vfree(buf);
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return nrparts;
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};
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static int adm5120_detect_cfe(struct mtd_info *master)
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{
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int idoffset = 0x4e0;
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#ifdef CONFIG_CPU_BIG_ENDIAN
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static char idstring[8] = "CFE1CFE1";
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#else
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static char idstring[8] = "1EFC1EFC";
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#endif
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char buf[8];
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int ret;
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size_t retlen;
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ret = master->read(master, idoffset, 8, &retlen, (void *)buf);
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printk("adm5120: Read Signature value of %s\n", buf);
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return strcmp(idstring,buf);
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}
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static int __init adm5120_mtd_init(void)
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{
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printk(KERN_INFO "ADM5120 board flash (0x%x at 0x%x)\n", FLASH_SIZE,
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printk(KERN_INFO "ADM5120 board flash (0x%08x at 0x%08x)\n", FLASH_SIZE,
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FLASH_PHYS_ADDR);
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adm5120_mtd_map.virt = ioremap_nocache(FLASH_PHYS_ADDR, FLASH_SIZE);
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adm5120_mtd_map.virt = ioremap(FLASH_PHYS_ADDR, FLASH_SIZE);
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if (!adm5120_mtd_map.virt) {
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printk("ADM5120: failed to ioremap\n");
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return -EIO;
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}
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simple_map_init(&adm5120_mtd_map);
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adm5120_mtd = do_map_probe("cfi_probe", &adm5120_mtd_map);
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if (adm5120_mtd) {
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adm5120_mtd->owner = THIS_MODULE;
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add_mtd_device(adm5120_mtd);
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if (adm5120_detect_cfe(adm5120_mtd) == 0)
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{
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int parsed_nr_parts = 0;
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char * part_type;
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printk("adm5120: CFE bootloader detected\n");
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if (parsed_nr_parts == 0) {
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int ret = parse_cfe_partitions(adm5120_mtd, &parsed_parts);
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if (ret > 0) {
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part_type = "CFE";
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parsed_nr_parts = ret;
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}
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}
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add_mtd_partitions(adm5120_mtd, parsed_parts, parsed_nr_parts);
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return 0;
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} else {
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add_mtd_device(adm5120_mtd);
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}
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return 0;
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}
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iounmap(adm5120_mtd);
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return -ENXIO;
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}
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static void __exit adm5120_mtd_exit(void)
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{
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del_mtd_device(adm5120_mtd);
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map_destroy(adm5120_mtd);
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if (adm5120_mtd) {
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del_mtd_device(adm5120_mtd);
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map_destroy(adm5120_mtd);
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}
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if (adm5120_mtd_map.virt) {
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iounmap(adm5120_mtd_map.virt);
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adm5120_mtd_map.virt = 0;
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}
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}
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module_init(adm5120_mtd_init);
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module_exit(adm5120_mtd_exit);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
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MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
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MODULE_DESCRIPTION("MTD map driver for ADM5120 boards");
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