[OpenWrt-Devel] 回复：[PATCH] ramips: reset m25p80 when shutdown

2015-11-16 Thread 未命名 
Instead of use the set_4byte function in spi-nor.c, I use this patch for 
simplest modification. In fact, set_4byte also send 0xe9 command to the spi 
flash.


Signed-off-by: Shonn Lu 
---
 .../0064-reset-m25p80-when-shutdown.patch  | 27 ++
 1 file changed, 27 insertions(+)
 create mode 100644 
target/linux/ramips/patches-3.18/0064-reset-m25p80-when-shutdown.patch

diff --git 
a/target/linux/ramips/patches-3.18/0064-reset-m25p80-when-shutdown.patch 
b/target/linux/ramips/patches-3.18/0064-reset-m25p80-when-shutdown.patch
new file mode 100644
index 000..aca758d
--- /dev/null
+++ b/target/linux/ramips/patches-3.18/0064-reset-m25p80-when-shutdown.patch
@@ -0,0 +1,27 @@
+--- a/drivers/mtd/devices/m25p80.c
 b/drivers/mtd/devices/m25p80.c
+@@ -322,6 +322,16 @@
+ {
+   struct m25p *flash = spi_get_drvdata(spi);
+ 
++  if ((&flash->spi_nor)->addr_width > 3) {
++  printk(KERN_INFO "m25p80: exit 4-byte address mode\n");
++  flash->command[0] = SPINOR_OP_EX4B;  // exit 4-byte address mode: 0xe9
++  spi_write(flash->spi, flash->command, 1);
++  flash->command[0] = 0x66;  // enable reset
++  spi_write(flash->spi, flash->command, 1);  
++  flash->command[0] = 0x99;  // reset
++  spi_write(flash->spi, flash->command, 1);
++  }
++
+   /* Clean up MTD stuff. */
+   return mtd_device_unregister(&flash->mtd);
+ }
+@@ -385,6 +395,7 @@
+   .id_table   = m25p_ids,
+   .probe  = m25p_probe,
+   .remove = m25p_remove,
++  .shutdown = m25p_remove, // add shutdown method to reset spi flash
+ 
+   /* REVISIT: many of these chips have deep power-down modes, which
+* should clearly be entered on suspend() to minimize power use.
-- 
1.9.1___
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[OpenWrt-Devel] 回复： [PATCH] ramips: reset m25p80 when shutdown

2015-11-11 Thread 未命名 
http://www.winbond.com.tw/resource-files/w25q256fv_revh_02112015.pdf
The datasheet above shows that w25q256fv also use E9h to exit 4-Byte mode.___
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[OpenWrt-Devel] 回复： [PATCH] ramips: reset m25p80 when shutdown

2015-11-11 Thread 未命名 
I do not test this patch on all the 32MB spi flash except my Youku YK1 router.I 
am looking forward to a generic shutdown function which adapt to Macronix or 
Winbond.

Cheers
Shonn___
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[OpenWrt-Devel] RE： [PATCH] ramips: reset m25p80 when shutdown

2015-11-09 Thread 未命名 
Yes, I'd like to submit it to mainline.For 32MB spi flash, The mt7620a soc 
switch to 32bit address mode.After a soft reset, the spi flash should switch to 
24bit back, otherwise the rourer would hang until you do a hard reset.



-- 原始邮件 --
发件人: "Rafał Miłecki";;
发送时间: 2015年11月9日(星期一) 凌晨5:25
收件人: "未命名"; 
抄送: "OpenWrt Development List"; 
主题: Re: [OpenWrt-Devel] [PATCH] ramips: reset m25p80 when shutdown



On 7 November 2015 at 21:42, Shonn Lu  wrote:
> Signed-off-by: Shonn Lu 
> ---
>  .../0064-reset-m25p80-when-shutdown.patch  | 24 
> ++
>  1 file changed, 24 insertions(+)
>  create mode 100644 
> target/linux/ramips/patches-3.18/0064-reset-m25p80-when-shutdown.patch
>
> diff --git 
> a/target/linux/ramips/patches-3.18/0064-reset-m25p80-when-shutdown.patch 
> b/target/linux/ramips/patches-3.18/0064-reset-m25p80-when-shutdown.patch
> new file mode 100644
> index 000..76f916a
> --- /dev/null
> +++ b/target/linux/ramips/patches-3.18/0064-reset-m25p80-when-shutdown.patch
> @@ -0,0 +1,24 @@
> +--- a/drivers/mtd/devices/m25p80.c
>  b/drivers/mtd/devices/m25p80.c
> +@@ -319,6 +319,12 @@
> + {
> +   struct m25p *flash = spi_get_drvdata(spi);
> +
> ++//play4fun: add spi flash reset code
> ++  flash->command[0] = 0x66;
> ++  spi_write(flash->spi, flash->command, 1);
> ++  flash->command[0] = 0x99;
> ++  spi_write(flash->spi, flash->command, 1);
> ++
> +   /* Clean up MTD stuff. */
> +   return mtd_device_unregister(&flash->mtd);
> + }
> +@@ -382,6 +388,8 @@
> +   .id_table   = m25p_ids,
> +   .probe  = m25p_probe,
> +   .remove = m25p_remove,
> ++  //  play4fun add shutdown method to reset spi flash
> ++  .shutdown = m25p_remove,

What's the point with that "play4fun" something? Please describe this
patch better, explain why it is needed. Did you try to submit this
patch to mainline?

-- 
Rafał___
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[OpenWrt-Devel] [PATCH] [packages] generic :add-missing-ubi*-in-ramfs-when-sysupgrade

2015-10-29 Thread 未命名 
This patch may fix the sysupgrade with xxx-squashfs-sysupgrade.tar file by 
adding missing other ubi* in ramfs.

Signed-off-by:  Shonn Lu 
---
diff --git a/package/base-files/files/lib/upgrade/common.sh 
b/package/base-files/files/lib/upgrade/common.sh
index 761b4c1..78bd65f 100644
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -67,6 +67,7 @@ run_ramfs() { #  [...]
install_bin /usr/sbin/ubirsvol
install_bin /usr/sbin/ubirmvol
install_bin /usr/sbin/ubimkvol
+   install_bin /usr/sbin/ubi*
for file in $RAMFS_COPY_BIN; do
install_bin ${file//:/ }
done___
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