Re: [PATCH 3/3, try #2] Blackfin: documents and maintainer patch
From: Wu, Bryan
Date: Mon Feb 05 2007 - 22:49:53 EST
Hi folks,
Update the MAINTAINERS file change. Thanks Aubrey for pointing out this old MAINTAINERS file.
Signed-off-by: Bryan Wu <bryan.wu@xxxxxxxxxx>
---
Documentation/blackfin/00-INDEX | 11 ++
Documentation/blackfin/Filesystems | 169 +++++++++++++++++++++++++++++++
Documentation/blackfin/cache-lock.txt | 48 ++++++++
Documentation/blackfin/cachefeatures.txt | 65 +++++++++++
MAINTAINERS | 38 ++++++
5 files changed, 331 insertions(+)
Index: linux-2.6/Documentation/blackfin/00-INDEX
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6/Documentation/blackfin/00-INDEX 2007-02-06 11:37:24.000000000 +0800
@@ -0,0 +1,11 @@
+00-INDEX
+ - This file
+
+cache-lock.txt
+ - HOWTO for blackfin cache locking.
+
+cachefeatures.txt
+ - Supported cache features.
+
+Filesystems
+ - Requirements for mounting the root file system.
Index: linux-2.6/Documentation/blackfin/Filesystems
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6/Documentation/blackfin/Filesystems 2007-02-06 11:37:24.000000000 +0800
@@ -0,0 +1,169 @@
+/*
+ * File: Documentation/blackfin/Filesystems
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description: This file contains the simple DMA Implementation for Blackfin
+ *
+ * Rev: $Id: Filesystems 2384 2006-11-01 04:12:43Z magicyang $
+ *
+ * Modified:
+ * Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ */
+
+ How to mount the root file system in uClinux/Blackfin
+ -----------------------------------------------------
+
+1 Mounting EXT3 File system.
+ ------------------------
+
+ Creating an EXT3 File system for uClinux/Blackfin:
+
+
+Please follow the steps to form the EXT3 File system and mount the same as root
+file system.
+
+a Make an ext3 file system as large as you want the final root file
+ system.
+
+ mkfs.ext3 /dev/ram0 <your-rootfs-size-in-1k-blocks>
+
+b Mount this Empty file system on a free directory as:
+
+ mount -t ext3 /dev/ram0 ./test
+ where ./test is the empty directory.
+
+c Copy your root fs directory that you have so carefully made over.
+
+ cp -af /tmp/my_final_rootfs_files/* ./test
+
+ (For ex: cp -af uClinux-dist/romfs/* ./test)
+
+d If you have done everything right till now you should be able to see
+ the required "root" dir's (that's etc, root, bin, lib, sbin...)
+
+e Now unmount the file system
+
+ umount ./test
+
+f Create the root file system image.
+
+ dd if=/dev/ram0 bs=1k count=<your-rootfs-size-in-1k-blocks> \
+ > ext3fs.img
+
+
+Now you have to tell the kernel that will be mounting this file system as
+rootfs.
+So do a make menuconfig under kernel and select the Ext3 journaling file system
+support under File system --> submenu.
+
+
+2. Mounting EXT2 File system.
+ -------------------------
+
+By default the ext2 file system image will be created if you invoke make from
+the top uClinux-dist directory.
+
+
+3. Mounting CRAMFS File System
+ ----------------------------
+
+To create a CRAMFS file system image execute the command
+
+ mkfs.cramfs ./test cramfs.img
+
+ where ./test is the target directory.
+
+
+4. Mounting ROMFS File System
+ --------------------------
+
+To create a ROMFS file system image execute the command
+
+ genromfs -v -V "ROMdisk" -f romfs.img -d ./test
+
+ where ./test is the target directory
+
+
+5. Mounting the JFFS2 Filesystem
+ -----------------------------
+
+To create a compressed JFFS filesystem (JFFS2), please execute the command
+
+ mkfs.jffs2 -d ./test -o jffs2.img
+
+ where ./test is the target directory.
+
+However, please make sure the following is in your kernel config.
+
+/*
+ * RAM/ROM/Flash chip drivers
+ */
+#define CONFIG_MTD_CFI 1
+#define CONFIG_MTD_ROM 1
+/*
+ * Mapping drivers for chip access
+ */
+#define CONFIG_MTD_COMPLEX_MAPPINGS 1
+#define CONFIG_MTD_BF533 1
+#undef CONFIG_MTD_UCLINUX
+
+Through the u-boot boot loader, use the jffs2.img in the corresponding
+partition made in linux-2.6.x/drivers/mtd/maps/bf533_flash.c.
+
+NOTE - Currently the Flash driver is available only for EZKIT. Watch out for a
+ STAMP driver soon.
+
+
+6. Mounting the NFS File system
+ -----------------------------
+
+ For mounting the NFS please do the following in the kernel config.
+
+ In Networking Support --> Networking options --> TCP/IP networking -->
+ IP: kernel level autoconfiguration
+
+ Enable BOOTP Support.
+
+ In Kernel hacking --> Compiled-in kernel boot parameter add the following
+
+ root=/dev/nfs rw ip=bootp
+
+ In File system --> Network File system, Enable
+
+ NFS file system support --> NFSv3 client support
+ Root File system on NFS
+
+ in uClibc menuconfig, do the following
+ In Networking Support
+ enable Remote Procedure Call (RPC) support
+ Full RPC Support
+
+ On the Host side, ensure that /etc/dhcpd.conf looks something like this
+
+ ddns-update-style ad-hoc;
+ allow bootp;
+ subnet 10.100.4.0 netmask 255.255.255.0 {
+ default-lease-time 122209600;
+ max-lease-time 31557600;
+ group {
+ host bf533 {
+ hardware ethernet 00:CF:52:49:C3:01;
+ fixed-address 10.100.4.50;
+ option root-path "/home/nfsmount";
+ }
+ }
+
+ ensure that /etc/exports looks something like this
+ /home/nfsmount *(rw,no_root_squash,no_all_squash)
+
+ run the following commands as root (may differ depending on your
+ distribution) :
+ - service nfs start
+ - service portmap start
+ - service dhcpd start
+ - /usr/sbin/exportfs
Index: linux-2.6/Documentation/blackfin/cache-lock.txt
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6/Documentation/blackfin/cache-lock.txt 2007-02-06 11:37:24.000000000 +0800
@@ -0,0 +1,48 @@
+/*
+ * File: Documentation/blackfin/cache-lock.txt
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description: This file contains the simple DMA Implementation for Blackfin
+ *
+ * Rev: $Id: cache-lock.txt 2384 2006-11-01 04:12:43Z magicyang $
+ *
+ * Modified:
+ * Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ */
+
+How to lock your code in cache in uClinux/blackfin
+--------------------------------------------------
+
+There are only a few steps required to lock your code into the cache.
+Currently you can lock the code by Way.
+
+Below are the interface provided for locking the cache.
+
+
+1. cache_grab_lock(int Ways);
+
+This function grab the lock for locking your code into the cache specified
+by Ways.
+
+
+2. cache_lock(int Ways);
+
+This function should be called after your critical code has been executed.
+Once the critical code exits, the code is now loaded into the cache. This
+function locks the code into the cache.
+
+
+So, the example sequence will be:
+
+ cache_grab_lock(WAY0_L); /* Grab the lock */
+
+ critical_code(); /* Execute the code of interest */
+
+ cache_lock(WAY0_L); /* Lock the cache */
+
+Where WAY0_L signifies WAY0 locking.
Index: linux-2.6/Documentation/blackfin/cachefeatures.txt
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6/Documentation/blackfin/cachefeatures.txt 2007-02-06 11:37:24.000000000 +0800
@@ -0,0 +1,65 @@
+/*
+ * File: Documentation/blackfin/cachefeatures.txt
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description: This file contains the simple DMA Implementation for Blackfin
+ *
+ * Rev: $Id: cachefeatures.txt 2384 2006-11-01 04:12:43Z magicyang $
+ *
+ * Modified:
+ * Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ */
+
+ - Instruction and Data cache initialization.
+ icache_init();
+ dcache_init();
+
+ - Instruction and Data cache Invalidation Routines, when flushing the
+ same is not required.
+ _icache_invalidate();
+ _dcache_invalidate();
+
+ Also, for invalidating the entire instruction and data cache, the below
+ routines are provided (another method for invalidation, refer page no 267 and 287 of
+ ADSP-BF533 Hardware Reference manual)
+
+ invalidate_entire_dcache();
+ invalidate_entire_icache();
+
+ -External Flushing of Instruction and data cache routines.
+
+ flush_instruction_cache();
+ flush_data_cache();
+
+ - Internal Flushing of Instruction and Data Cache.
+
+ icplb_flush();
+ dcplb_flush();
+
+ - Locking the cache.
+
+ cache_grab_lock();
+ cache_lock();
+
+ Please refer linux-2.6.x/Documentation/blackfin/cache-lock.txt for how to
+ lock the cache.
+
+ Locking the cache is optional feature.
+
+ - Miscellaneous cache functions.
+
+ flush_cache_all();
+ flush_cache_mm();
+ invalidate_dcache_range();
+ flush_dcache_range();
+ flush_dcache_page();
+ flush_cache_range();
+ flush_cache_page();
+ invalidate_dcache_range();
+ flush_page_to_ram();
+
Index: linux-2.6/MAINTAINERS
===================================================================
--- linux-2.6.orig/MAINTAINERS 2007-02-06 02:54:24.000000000 +0800
+++ linux-2.6/MAINTAINERS 2007-02-06 11:39:47.000000000 +0800
@@ -637,6 +637,44 @@
W: http://www.linux-ax25.org/
S: Maintained
+BLACKFIN ARCHITECTURE
+P: Aubrey Li
+M: aubrey.li@xxxxxxxxxx
+P: Bernd Schmidt
+M: bernd.schmidt@xxxxxxxxxx
+P: Bryan Wu
+M: bryan.wu@xxxxxxxxxx
+P: Grace Pan
+M: grace.pan@xxxxxxxxxx
+P: Michael Hennerich
+M: michael.hennerich@xxxxxxxxxx
+P: Mike Frysinger
+M: michael.frysinger@xxxxxxxxxx
+P: Jean Lv
+M: jean.lv@xxxxxxxxxx
+P: Jerry Zeng
+M: jerry.zeng@xxxxxxxxxx
+P: Jie Zhang
+M: jie.zhang@xxxxxxxxxx
+P: Robin Getz
+M: robin.getz@xxxxxxxxxx
+P: Roy Huang
+M: roy.huang@xxxxxxxxxx
+P: Sonic Zhang
+M: sonic.zhang@xxxxxxxxxx
+P: Yi Li
+M: yi.li@xxxxxxxxxx
+L: uclinux-dist-devel@xxxxxxxxxxxxxxxxxxxx
+W: http://blackfin.uclinux.org
+S: Supported
+
+BLACKFIN SERIAL DRIVER
+P: Aubrey Li
+M: aubrey.li@xxxxxxxxxx
+L: uclinux-dist-devel@xxxxxxxxxxxxxxxxxxxx
+W: http://blackfin.uclinux.org
+S: Supported
+
BAYCOM/HDLCDRV DRIVERS FOR AX.25
P: Thomas Sailer
M: t.sailer@xxxxxxxxxxxxxx
---
Thanks a lot
Best Regards
Bryan Wu <bryan.wu@xxxxxxxxxx>
On Tue, 2007-02-06 at 11:20 +0800, Wu, Bryan wrote:
> Hi everyone,
>
> This is the documents patch for Blackfin arch, also includes the MAINTAINERS file change.
>
> Thank Mike, I update this patch and regenerate it in -p1 format.
>
> Sorry for starting a new thread, because I switch to a new email client.
>
> Signed-off-by: Bryan Wu <bryan.wu@xxxxxxxxxx>
> ---
> Documentation/blackfin/00-INDEX | 11 ++
> Documentation/blackfin/Filesystems | 169 +++++++++++++++++++++++++++++++
> Documentation/blackfin/cache-lock.txt | 48 ++++++++
> Documentation/blackfin/cachefeatures.txt | 65 +++++++++++
> MAINTAINERS | 30 +++++
> 5 files changed, 323 insertions(+)
> Index: linux-2.6/Documentation/blackfin/00-INDEX
> ===================================================================
> --- /dev/null 1970-01-01 00:00:00.000000000 +0000
> +++ linux-2.6/Documentation/blackfin/00-INDEX 2007-02-06 01:20:13.000000000 +0800
> @@ -0,0 +1,11 @@
> +00-INDEX
> + - This file
> +
> +cache-lock.txt
> + - HOWTO for blackfin cache locking.
> +
> +cachefeatures.txt
> + - Supported cache features.
> +
> +Filesystems
> + - Requirements for mounting the root file system.
> Index: linux-2.6/Documentation/blackfin/Filesystems
> ===================================================================
> --- /dev/null 1970-01-01 00:00:00.000000000 +0000
> +++ linux-2.6/Documentation/blackfin/Filesystems 2007-02-06 01:20:13.000000000 +0800
> @@ -0,0 +1,169 @@
> +/*
> + * File: Documentation/blackfin/Filesystems
> + * Based on:
> + * Author:
> + *
> + * Created:
> + * Description: This file contains the simple DMA Implementation for Blackfin
> + *
> + * Rev: $Id: Filesystems 2384 2006-11-01 04:12:43Z magicyang $
> + *
> + * Modified:
> + * Copyright 2004-2006 Analog Devices Inc.
> + *
> + * Bugs: Enter bugs at http://blackfin.uclinux.org/
> + *
> + */
> +
> + How to mount the root file system in uClinux/Blackfin
> + -----------------------------------------------------
> +
> +1 Mounting EXT3 File system.
> + ------------------------
> +
> + Creating an EXT3 File system for uClinux/Blackfin:
> +
> +
> +Please follow the steps to form the EXT3 File system and mount the same as root
> +file system.
> +
> +a Make an ext3 file system as large as you want the final root file
> + system.
> +
> + mkfs.ext3 /dev/ram0 <your-rootfs-size-in-1k-blocks>
> +
> +b Mount this Empty file system on a free directory as:
> +
> + mount -t ext3 /dev/ram0 ./test
> + where ./test is the empty directory.
> +
> +c Copy your root fs directory that you have so carefully made over.
> +
> + cp -af /tmp/my_final_rootfs_files/* ./test
> +
> + (For ex: cp -af uClinux-dist/romfs/* ./test)
> +
> +d If you have done everything right till now you should be able to see
> + the required "root" dir's (that's etc, root, bin, lib, sbin...)
> +
> +e Now unmount the file system
> +
> + umount ./test
> +
> +f Create the root file system image.
> +
> + dd if=/dev/ram0 bs=1k count=<your-rootfs-size-in-1k-blocks> \
> + > ext3fs.img
> +
> +
> +Now you have to tell the kernel that will be mounting this file system as
> +rootfs.
> +So do a make menuconfig under kernel and select the Ext3 journaling file system
> +support under File system --> submenu.
> +
> +
> +2. Mounting EXT2 File system.
> + -------------------------
> +
> +By default the ext2 file system image will be created if you invoke make from
> +the top uClinux-dist directory.
> +
> +
> +3. Mounting CRAMFS File System
> + ----------------------------
> +
> +To create a CRAMFS file system image execute the command
> +
> + mkfs.cramfs ./test cramfs.img
> +
> + where ./test is the target directory.
> +
> +
> +4. Mounting ROMFS File System
> + --------------------------
> +
> +To create a ROMFS file system image execute the command
> +
> + genromfs -v -V "ROMdisk" -f romfs.img -d ./test
> +
> + where ./test is the target directory
> +
> +
> +5. Mounting the JFFS2 Filesystem
> + -----------------------------
> +
> +To create a compressed JFFS filesystem (JFFS2), please execute the command
> +
> + mkfs.jffs2 -d ./test -o jffs2.img
> +
> + where ./test is the target directory.
> +
> +However, please make sure the following is in your kernel config.
> +
> +/*
> + * RAM/ROM/Flash chip drivers
> + */
> +#define CONFIG_MTD_CFI 1
> +#define CONFIG_MTD_ROM 1
> +/*
> + * Mapping drivers for chip access
> + */
> +#define CONFIG_MTD_COMPLEX_MAPPINGS 1
> +#define CONFIG_MTD_BF533 1
> +#undef CONFIG_MTD_UCLINUX
> +
> +Through the u-boot boot loader, use the jffs2.img in the corresponding
> +partition made in linux-2.6.x/drivers/mtd/maps/bf533_flash.c.
> +
> +NOTE - Currently the Flash driver is available only for EZKIT. Watch out for a
> + STAMP driver soon.
> +
> +
> +6. Mounting the NFS File system
> + -----------------------------
> +
> + For mounting the NFS please do the following in the kernel config.
> +
> + In Networking Support --> Networking options --> TCP/IP networking -->
> + IP: kernel level autoconfiguration
> +
> + Enable BOOTP Support.
> +
> + In Kernel hacking --> Compiled-in kernel boot parameter add the following
> +
> + root=/dev/nfs rw ip=bootp
> +
> + In File system --> Network File system, Enable
> +
> + NFS file system support --> NFSv3 client support
> + Root File system on NFS
> +
> + in uClibc menuconfig, do the following
> + In Networking Support
> + enable Remote Procedure Call (RPC) support
> + Full RPC Support
> +
> + On the Host side, ensure that /etc/dhcpd.conf looks something like this
> +
> + ddns-update-style ad-hoc;
> + allow bootp;
> + subnet 10.100.4.0 netmask 255.255.255.0 {
> + default-lease-time 122209600;
> + max-lease-time 31557600;
> + group {
> + host bf533 {
> + hardware ethernet 00:CF:52:49:C3:01;
> + fixed-address 10.100.4.50;
> + option root-path "/home/nfsmount";
> + }
> + }
> +
> + ensure that /etc/exports looks something like this
> + /home/nfsmount *(rw,no_root_squash,no_all_squash)
> +
> + run the following commands as root (may differ depending on your
> + distribution) :
> + - service nfs start
> + - service portmap start
> + - service dhcpd start
> + - /usr/sbin/exportfs
> Index: linux-2.6/Documentation/blackfin/cache-lock.txt
> ===================================================================
> --- /dev/null 1970-01-01 00:00:00.000000000 +0000
> +++ linux-2.6/Documentation/blackfin/cache-lock.txt 2007-02-06 01:20:13.000000000 +0800
> @@ -0,0 +1,48 @@
> +/*
> + * File: Documentation/blackfin/cache-lock.txt
> + * Based on:
> + * Author:
> + *
> + * Created:
> + * Description: This file contains the simple DMA Implementation for Blackfin
> + *
> + * Rev: $Id: cache-lock.txt 2384 2006-11-01 04:12:43Z magicyang $
> + *
> + * Modified:
> + * Copyright 2004-2006 Analog Devices Inc.
> + *
> + * Bugs: Enter bugs at http://blackfin.uclinux.org/
> + *
> + */
> +
> +How to lock your code in cache in uClinux/blackfin
> +--------------------------------------------------
> +
> +There are only a few steps required to lock your code into the cache.
> +Currently you can lock the code by Way.
> +
> +Below are the interface provided for locking the cache.
> +
> +
> +1. cache_grab_lock(int Ways);
> +
> +This function grab the lock for locking your code into the cache specified
> +by Ways.
> +
> +
> +2. cache_lock(int Ways);
> +
> +This function should be called after your critical code has been executed.
> +Once the critical code exits, the code is now loaded into the cache. This
> +function locks the code into the cache.
> +
> +
> +So, the example sequence will be:
> +
> + cache_grab_lock(WAY0_L); /* Grab the lock */
> +
> + critical_code(); /* Execute the code of interest */
> +
> + cache_lock(WAY0_L); /* Lock the cache */
> +
> +Where WAY0_L signifies WAY0 locking.
> Index: linux-2.6/Documentation/blackfin/cachefeatures.txt
> ===================================================================
> --- /dev/null 1970-01-01 00:00:00.000000000 +0000
> +++ linux-2.6/Documentation/blackfin/cachefeatures.txt 2007-02-06 01:20:13.000000000 +0800
> @@ -0,0 +1,65 @@
> +/*
> + * File: Documentation/blackfin/cachefeatures.txt
> + * Based on:
> + * Author:
> + *
> + * Created:
> + * Description: This file contains the simple DMA Implementation for Blackfin
> + *
> + * Rev: $Id: cachefeatures.txt 2384 2006-11-01 04:12:43Z magicyang $
> + *
> + * Modified:
> + * Copyright 2004-2006 Analog Devices Inc.
> + *
> + * Bugs: Enter bugs at http://blackfin.uclinux.org/
> + *
> + */
> +
> + - Instruction and Data cache initialization.
> + icache_init();
> + dcache_init();
> +
> + - Instruction and Data cache Invalidation Routines, when flushing the
> + same is not required.
> + _icache_invalidate();
> + _dcache_invalidate();
> +
> + Also, for invalidating the entire instruction and data cache, the below
> + routines are provided (another method for invalidation, refer page no 267 and 287 of
> + ADSP-BF533 Hardware Reference manual)
> +
> + invalidate_entire_dcache();
> + invalidate_entire_icache();
> +
> + -External Flushing of Instruction and data cache routines.
> +
> + flush_instruction_cache();
> + flush_data_cache();
> +
> + - Internal Flushing of Instruction and Data Cache.
> +
> + icplb_flush();
> + dcplb_flush();
> +
> + - Locking the cache.
> +
> + cache_grab_lock();
> + cache_lock();
> +
> + Please refer linux-2.6.x/Documentation/blackfin/cache-lock.txt for how to
> + lock the cache.
> +
> + Locking the cache is optional feature.
> +
> + - Miscellaneous cache functions.
> +
> + flush_cache_all();
> + flush_cache_mm();
> + invalidate_dcache_range();
> + flush_dcache_range();
> + flush_dcache_page();
> + flush_cache_range();
> + flush_cache_page();
> + invalidate_dcache_range();
> + flush_page_to_ram();
> +
> Index: linux-2.6/MAINTAINERS
> ===================================================================
> --- linux-2.6.orig/MAINTAINERS 2007-02-06 01:13:42.000000000 +0800
> +++ linux-2.6/MAINTAINERS 2007-02-06 02:19:15.000000000 +0800
> @@ -637,6 +637,36 @@
> W: http://www.linux-ax25.org/
> S: Maintained
>
> +BLACKFIN ARCHITECTURE
> +P: Aubery Li
> +M: aubery.li@xxxxxxxxxx
> +P: Bernd Schmidt
> +M: bernd.schmidt@xxxxxxxxxx
> +P: Bryan Wu
> +M: bryan.wu@xxxxxxxxxx
> +P: Michael Hennerich
> +M: michael.hennerich@xxxxxxxxxx
> +P: Mike Frysinger
> +M: michael.frysinger@xxxxxxxxxx
> +P: Jie Zhang
> +M: jie.zhang@xxxxxxxxxx
> +P: Robin Getz
> +M: robin.retz@xxxxxxxxxx
> +P: Roy Huang
> +M: roy.huang@xxxxxxxxxx
> +P: Sonic Zhang
> +M: sonic.zhang@xxxxxxxxxx
> +L: uclinux-dist-devel@xxxxxxxxxxxxxxxxxxxx
> +W: http://blackfin.uclinux.org
> +S: Supported
> +
> +BLACKFIN SERIAL DRIVER
> +P: Sonic Zhang
> +M: sonic.zhang@xxxxxxxxxx
> +L: uclinux-dist-devel@xxxxxxxxxxxxxxxxxxxx
> +W: http://blackfin.uclinux.org
> +S: Supported
> +
> BAYCOM/HDLCDRV DRIVERS FOR AX.25
> P: Thomas Sailer
> M: t.sailer@xxxxxxxxxxxxxx
> ---
>
> Thanks a lot
> Best Regards
> Bryan Wu <bryan.wu@xxxxxxxxxx>
> -
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