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| author | Marek Vasut <marex@denx.de> | 2015-07-27 22:34:54 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-08-08 14:14:04 +0200 |
| commit | bfa89d2ba8f0a278df6de584dcfbd33814753e33 (patch) | |
| tree | ea240198443d00cd6814d24a77e2aa7d6ddbf680 /drivers/fpga | |
| parent | ae27120c31d58b8bb694d9155bcffdcfae8552a6 (diff) | |
| download | u-boot-bfa89d2ba8f0a278df6de584dcfbd33814753e33.tar.gz u-boot-bfa89d2ba8f0a278df6de584dcfbd33814753e33.tar.bz2 u-boot-bfa89d2ba8f0a278df6de584dcfbd33814753e33.zip | |
arm: socfpga: Fix FPGA bitstream programming routine
In case the FPGA bitstream is aligned to 4 bytes, skip the
part of the assembler which handles unaligned bitstream.
Otherwise, that part will loop indefinitelly.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Diffstat (limited to 'drivers/fpga')
| -rw-r--r-- | drivers/fpga/socfpga.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/fpga/socfpga.c b/drivers/fpga/socfpga.c index 63b3566e3e..4448250f5c 100644 --- a/drivers/fpga/socfpga.c +++ b/drivers/fpga/socfpga.c @@ -160,10 +160,13 @@ static void fpgamgr_program_write(const void *rbf_data, unsigned long rbf_size) " sub %1, #32\n" " subs %2, #1\n" " bne 1b\n" + " cmp %3, #0\n" + " beq 3f\n" "2: ldr %2, [%0], #4\n" " str %2, [%1]\n" " subs %3, #1\n" " bne 2b\n" + "3: nop\n" : "+r"(src), "+r"(dst), "+r"(loops32), "+r"(loops4) : : "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "cc"); } |