X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fspi%2Fxilinx_spi.c;h=56d99d17c7d95f6b3474a3a56595e2be67398aa6;hb=a5a58826110eb3da2956c6b3213bd750e166d75c;hp=a82b056948a4cecd716a776f6d7eae1e63b89423;hpb=009d75ccc11d27b9a083375a88bb93cb746b4800;p=u-boot diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c index a82b056948..56d99d17c7 100644 --- a/drivers/spi/xilinx_spi.c +++ b/drivers/spi/xilinx_spi.c @@ -9,7 +9,7 @@ * Copyright (c) 2010 Graeme Smecher * Copyright (c) 2012 Stephan Linz * - * Licensed under the GPL-2 or later. + * SPDX-License-Identifier: GPL-2.0+ * * [0]: http://www.xilinx.com/support/documentation * @@ -149,6 +149,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout, const unsigned char *txp = dout; unsigned char *rxp = din; unsigned rxecount = 17; /* max. 16 elements in FIFO, leftover 1 */ + unsigned global_timeout; debug("%s: bus:%i cs:%i bitlen:%i bytes:%i flags:%lx\n", __func__, slave->bus, slave->cs, bitlen, bytes, flags); @@ -176,11 +177,12 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout, if (flags & SPI_XFER_BEGIN) spi_cs_activate(slave); - while (bytes--) { - unsigned timeout = /* at least 1usec or greater, leftover 1 */ - xilspi->freq > XILSPI_MAX_XFER_BITS * 1000000 ? 2 : + /* at least 1usec or greater, leftover 1 */ + global_timeout = xilspi->freq > XILSPI_MAX_XFER_BITS * 1000000 ? 2 : (XILSPI_MAX_XFER_BITS * 1000000 / xilspi->freq) + 1; + while (bytes--) { + unsigned timeout = global_timeout; /* get Tx element from data out buffer and count up */ unsigned char d = txp ? *txp++ : CONFIG_XILINX_SPI_IDLE_VAL; debug("%s: tx:%x ", __func__, d);