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| author | Olivier Schonken <olivier.schonken@gmail.com> | 2012-09-12 21:56:50 +0200 |
|---|---|---|
| committer | Spencer Oliver <spen@spen-soft.co.uk> | 2012-10-04 15:53:19 +0000 |
| commit | 5952843fc5d56d51f3e0ed5d141db46beefa8b56 (patch) | |
| tree | 4ad121b74444235630a8351bbac45f27d38f4a33 /src/flash | |
| parent | bd5f5c6a66f04751a4752ede396b4a12f478ee25 (diff) | |
| download | riscv-openocd-5952843fc5d56d51f3e0ed5d141db46beefa8b56.zip riscv-openocd-5952843fc5d56d51f3e0ed5d141db46beefa8b56.tar.gz riscv-openocd-5952843fc5d56d51f3e0ed5d141db46beefa8b56.tar.bz2 | |
Modified Sector Erase for AT91SAM4S
In FLASHD_ErasePages AT91C_EFC_FCMD_EPA is used to erase sectors.
According to the datasheet FARG[15:2] defines the page from which
the erase will start.This page must be modulo 4, 8, 16 or 32
according to the number of pages to erase. FARG[1:0] defines the
number of pages to be erased. Previously (firstpage << 2) was used
to conform to this, seems it should not be shifted... Changed it
to (firstPage) | erasePages.
Change-Id: I791cc7fc4faf056623ad5a6c7e860315306098a1
Signed-off-by: Olivier Schonken <olivier.schonken@gmail.com>
Reviewed-on: http://openocd.zylin.com/830
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Diffstat (limited to 'src/flash')
| -rw-r--r-- | src/flash/nor/at91sam4.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/flash/nor/at91sam4.c b/src/flash/nor/at91sam4.c index fd98b7f..ce3c1d1 100644 --- a/src/flash/nor/at91sam4.c +++ b/src/flash/nor/at91sam4.c @@ -722,10 +722,17 @@ static int FLASHD_ErasePages(struct sam4_bank_private *pPrivate, break; } + /* AT91C_EFC_FCMD_EPA + * According to the datasheet FARG[15:2] defines the page from which + * the erase will start.This page must be modulo 4, 8, 16 or 32 + * according to the number of pages to erase. FARG[1:0] defines the + * number of pages to be erased. Previously (firstpage << 2) was used + * to conform to this, seems it should not be shifted... + */ return EFC_PerformCommand(pPrivate, /* send Erase Page */ AT91C_EFC_FCMD_EPA, - (firstPage << 2) | erasePages, + (firstPage) | erasePages, status); } |