[oe-commits] Andrea Adami : nandlogical: add nandlogical-klibc-static for Zaurus
git version control
git at git.openembedded.org
Wed Jul 29 00:51:59 UTC 2009
Module: openembedded.git
Branch: org.openembedded.dev
Commit: 8361ab6537f2335efa18fde8ef369167250127b3
URL: http://gitweb.openembedded.net/?p=openembedded.git&a=commit;h=8361ab6537f2335efa18fde8ef369167250127b3
Author: Andrea Adami <andrea.adami at gmail.com>
Date: Wed Jul 29 02:49:42 2009 +0200
nandlogical: add nandlogical-klibc-static for Zaurus
- code to be used in kexecboot to detect the size of the rootfs in nand
---
recipes/nandlogical/files/mtd-abi.h | 152 ++++++++++++++++++++
recipes/nandlogical/files/mtd-user.h | 21 +++
.../nandlogical/nandlogical-klibc-static_1.0.0.bb | 23 +++
3 files changed, 196 insertions(+), 0 deletions(-)
diff --git a/recipes/nandlogical/files/mtd-abi.h b/recipes/nandlogical/files/mtd-abi.h
new file mode 100644
index 0000000..86defe1
--- /dev/null
+++ b/recipes/nandlogical/files/mtd-abi.h
@@ -0,0 +1,152 @@
+/*
+ * $Id: mtd-abi.h,v 1.13 2005/11/07 11:14:56 gleixner Exp $
+ *
+ * Portions of MTD ABI definition which are shared by kernel and user space
+ */
+
+#ifndef __MTD_ABI_H__
+#define __MTD_ABI_H__
+
+struct erase_info_user {
+ uint32_t start;
+ uint32_t length;
+};
+
+struct mtd_oob_buf {
+ uint32_t start;
+ uint32_t length;
+ unsigned char *ptr;
+};
+
+#define MTD_ABSENT 0
+#define MTD_RAM 1
+#define MTD_ROM 2
+#define MTD_NORFLASH 3
+#define MTD_NANDFLASH 4
+#define MTD_DATAFLASH 6
+#define MTD_UBIVOLUME 7
+
+#define MTD_WRITEABLE 0x400 /* Device is writeable */
+#define MTD_BIT_WRITEABLE 0x800 /* Single bits can be flipped */
+#define MTD_NO_ERASE 0x1000 /* No erase necessary */
+#define MTD_STUPID_LOCK 0x2000 /* Always locked after reset */
+
+// Some common devices / combinations of capabilities
+#define MTD_CAP_ROM 0
+#define MTD_CAP_RAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
+#define MTD_CAP_NORFLASH (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
+#define MTD_CAP_NANDFLASH (MTD_WRITEABLE)
+
+/* ECC byte placement */
+#define MTD_NANDECC_OFF 0 // Switch off ECC (Not recommended)
+#define MTD_NANDECC_PLACE 1 // Use the given placement in the structure (YAFFS1 legacy mode)
+#define MTD_NANDECC_AUTOPLACE 2 // Use the default placement scheme
+#define MTD_NANDECC_PLACEONLY 3 // Use the given placement in the structure (Do not store ecc result on read)
+#define MTD_NANDECC_AUTOPL_USR 4 // Use the given autoplacement scheme rather than using the default
+
+/* OTP mode selection */
+#define MTD_OTP_OFF 0
+#define MTD_OTP_FACTORY 1
+#define MTD_OTP_USER 2
+
+struct mtd_info_user {
+ uint8_t type;
+ uint32_t flags;
+ uint32_t size; // Total size of the MTD
+ uint32_t erasesize;
+ uint32_t writesize;
+ uint32_t oobsize; // Amount of OOB data per block (e.g. 16)
+ /* The below two fields are obsolete and broken, do not use them
+ * (TODO: remove at some point) */
+ uint32_t ecctype;
+ uint32_t eccsize;
+};
+
+struct region_info_user {
+ uint32_t offset; /* At which this region starts,
+ * from the beginning of the MTD */
+ uint32_t erasesize; /* For this region */
+ uint32_t numblocks; /* Number of blocks in this region */
+ uint32_t regionindex;
+};
+
+struct otp_info {
+ uint32_t start;
+ uint32_t length;
+ uint32_t locked;
+};
+
+#define MEMGETINFO _IOR('M', 1, struct mtd_info_user)
+#define MEMERASE _IOW('M', 2, struct erase_info_user)
+#define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf)
+#define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf)
+#define MEMLOCK _IOW('M', 5, struct erase_info_user)
+#define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
+#define MEMGETREGIONCOUNT _IOR('M', 7, int)
+#define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user)
+#define MEMSETOOBSEL _IOW('M', 9, struct nand_oobinfo)
+#define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo)
+#define MEMGETBADBLOCK _IOW('M', 11, loff_t)
+#define MEMSETBADBLOCK _IOW('M', 12, loff_t)
+#define OTPSELECT _IOR('M', 13, int)
+#define OTPGETREGIONCOUNT _IOW('M', 14, int)
+#define OTPGETREGIONINFO _IOW('M', 15, struct otp_info)
+#define OTPLOCK _IOR('M', 16, struct otp_info)
+#define ECCGETLAYOUT _IOR('M', 17, struct nand_ecclayout)
+#define ECCGETSTATS _IOR('M', 18, struct mtd_ecc_stats)
+#define MTDFILEMODE _IO('M', 19)
+
+/*
+ * Obsolete legacy interface. Keep it in order not to break userspace
+ * interfaces
+ */
+struct nand_oobinfo {
+ uint32_t useecc;
+ uint32_t eccbytes;
+ uint32_t oobfree[8][2];
+ uint32_t eccpos[32];
+};
+
+struct nand_oobfree {
+ uint32_t offset;
+ uint32_t length;
+};
+
+#define MTD_MAX_OOBFREE_ENTRIES 8
+/*
+ * ECC layout control structure. Exported to userspace for
+ * diagnosis and to allow creation of raw images
+ */
+struct nand_ecclayout {
+ uint32_t eccbytes;
+ uint32_t eccpos[64];
+ uint32_t oobavail;
+ struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
+};
+
+/**
+ * struct mtd_ecc_stats - error correction stats
+ *
+ * @corrected: number of corrected bits
+ * @failed: number of uncorrectable errors
+ * @badblocks: number of bad blocks in this partition
+ * @bbtblocks: number of blocks reserved for bad block tables
+ */
+struct mtd_ecc_stats {
+ uint32_t corrected;
+ uint32_t failed;
+ uint32_t badblocks;
+ uint32_t bbtblocks;
+};
+
+/*
+ * Read/write file modes for access to MTD
+ */
+enum mtd_file_modes {
+ MTD_MODE_NORMAL = MTD_OTP_OFF,
+ MTD_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
+ MTD_MODE_OTP_USER = MTD_OTP_USER,
+ MTD_MODE_RAW,
+};
+
+#endif /* __MTD_ABI_H__ */
diff --git a/recipes/nandlogical/files/mtd-user.h b/recipes/nandlogical/files/mtd-user.h
new file mode 100644
index 0000000..713f34d
--- /dev/null
+++ b/recipes/nandlogical/files/mtd-user.h
@@ -0,0 +1,21 @@
+/*
+ * $Id: mtd-user.h,v 1.2 2004/05/05 14:44:57 dwmw2 Exp $
+ *
+ * MTD ABI header for use by user space only.
+ */
+
+#ifndef __MTD_USER_H__
+#define __MTD_USER_H__
+
+#include <stdint.h>
+
+/* This file is blessed for inclusion by userspace */
+#include <mtd/mtd-abi.h>
+
+typedef struct mtd_info_user mtd_info_t;
+typedef struct erase_info_user erase_info_t;
+typedef struct region_info_user region_info_t;
+typedef struct nand_oobinfo nand_oobinfo_t;
+typedef struct nand_ecclayout nand_ecclayout_t;
+
+#endif /* __MTD_USER_H__ */
diff --git a/recipes/nandlogical/nandlogical-klibc-static_1.0.0.bb b/recipes/nandlogical/nandlogical-klibc-static_1.0.0.bb
new file mode 100644
index 0000000..8c3ca9d
--- /dev/null
+++ b/recipes/nandlogical/nandlogical-klibc-static_1.0.0.bb
@@ -0,0 +1,23 @@
+require nandlogical_${PV}.bb
+
+SRC_URI_append = " file://nandlogical.c \
+ file://mtd-user.h \
+ file://mtd-abi.h \
+ "
+DEPENDS += "klibc"
+
+export CC = ${TARGET_PREFIX}klcc
+
+# standard oe cflags don't work with klcc
+export CFLAGS = ""
+export CPPFLAGS = ""
+export LDFLAGS = ""
+
+do_configure_prepend() {
+ sed -i 's:<mtd/mtd-user.h>:"mtd-user.h":g' '${S}/nandlogical.c'
+ sed -i 's:<mtd/mtd-abi.h>:"mtd-abi.h":g' '${S}/mtd-user.h'
+}
+
+do_compile() {
+ ${CC} nandlogical.c -o nandlogical ${CFLAGS} ${LDFLAGS} -static
+}
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