commands: spi: Fix spi read procedure
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> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -81,7 +81,7 @@ static int do_spi(int argc, char *argv[])
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}
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tx_buf = xmalloc(count);
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rx_buf = xmalloc(count);
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rx_buf = xmalloc(read);
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for (i = 0; i < count; i++)
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tx_buf[i] = (u8) simple_strtol(argv[optind + i], NULL, 16);
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