* [PATCH] commands: spi: Fix spi read procedure
@ 2013-07-13 5:31 Alexander Shiyan
2013-07-15 9:05 ` Sascha Hauer
0 siblings, 1 reply; 2+ messages in thread
From: Alexander Shiyan @ 2013-07-13 5:31 UTC (permalink / raw)
To: barebox
Buffer for RX is set incorrectly.
barebox@Phytec phyCORE-i.MX27:/ spi -r 128 -v
device config
bus_num = 0
max_speed_hz = 1000000
chip_select = 0
mode = 0x0
bits_per_word = 8
wrote 0 bytes
00000000:
read 128 bytes
00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
unable to handle paging request at address 0x4dffd3d0
pc : [<a7f05ec4>] lr : [<a7f05ebc>]
sp : a7fff890 ip : a7fff860 fp : a7f68820
r10: a6ffe9bc r9 : 00000000 r8 : 00000001
r7 : a6ffe9ec r6 : a6f00000 r5 : a6ffe9ec r4 : a6ffe9e4
r3 : a6ffe9e4 r2 : a6ffe9e5 r1 : a6ffe9e4 r0 : 4dffd3cc
Flags: nZCv IRQs off FIQs off Mode SVC_32
...
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
commands/spi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/commands/spi.c b/commands/spi.c
index 2f6b430..79fc539 100644
--- a/commands/spi.c
+++ b/commands/spi.c
@@ -81,7 +81,7 @@ static int do_spi(int argc, char *argv[])
}
tx_buf = xmalloc(count);
- rx_buf = xmalloc(count);
+ rx_buf = xmalloc(read);
for (i = 0; i < count; i++)
tx_buf[i] = (u8) simple_strtol(argv[optind + i], NULL, 16);
--
1.8.1.5
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^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] commands: spi: Fix spi read procedure
2013-07-13 5:31 [PATCH] commands: spi: Fix spi read procedure Alexander Shiyan
@ 2013-07-15 9:05 ` Sascha Hauer
0 siblings, 0 replies; 2+ messages in thread
From: Sascha Hauer @ 2013-07-15 9:05 UTC (permalink / raw)
To: Alexander Shiyan; +Cc: barebox
On Sat, Jul 13, 2013 at 09:31:40AM +0400, Alexander Shiyan wrote:
> Buffer for RX is set incorrectly.
>
> barebox@Phytec phyCORE-i.MX27:/ spi -r 128 -v
> device config
> bus_num = 0
> max_speed_hz = 1000000
> chip_select = 0
> mode = 0x0
> bits_per_word = 8
>
> wrote 0 bytes
> 00000000:
> read 128 bytes
> 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> unable to handle paging request at address 0x4dffd3d0
> pc : [<a7f05ec4>] lr : [<a7f05ebc>]
> sp : a7fff890 ip : a7fff860 fp : a7f68820
> r10: a6ffe9bc r9 : 00000000 r8 : 00000001
> r7 : a6ffe9ec r6 : a6f00000 r5 : a6ffe9ec r4 : a6ffe9e4
> r3 : a6ffe9e4 r2 : a6ffe9e5 r1 : a6ffe9e4 r0 : 4dffd3cc
> Flags: nZCv IRQs off FIQs off Mode SVC_32
> ...
>
> Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Applied, thanks
Sascha
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