1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 2011 The Chromium OS Authors.
4 */
5
6 #include <common.h>
7 #include <fdtdec.h>
8 #include <malloc.h>
9 #include <spi.h>
10
spi_set_wordlen(struct spi_slave * slave,unsigned int wordlen)11 int spi_set_wordlen(struct spi_slave *slave, unsigned int wordlen)
12 {
13 if (wordlen == 0 || wordlen > 32) {
14 printf("spi: invalid wordlen %u\n", wordlen);
15 return -1;
16 }
17
18 slave->wordlen = wordlen;
19
20 return 0;
21 }
22
spi_do_alloc_slave(int offset,int size,unsigned int bus,unsigned int cs)23 void *spi_do_alloc_slave(int offset, int size, unsigned int bus,
24 unsigned int cs)
25 {
26 u8 *ptr;
27
28 ptr = malloc(size);
29 if (ptr) {
30 struct spi_slave *slave;
31
32 memset(ptr, '\0', size);
33 slave = (struct spi_slave *)(ptr + offset);
34 slave->bus = bus;
35 slave->cs = cs;
36 slave->wordlen = SPI_DEFAULT_WORDLEN;
37 }
38
39 return ptr;
40 }
41