diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/Makefile | 3 | ||||
| -rw-r--r-- | drivers/spi/spi.c | 39 |
2 files changed, 42 insertions, 0 deletions
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index b8264df3a9..45862ec938 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -25,6 +25,9 @@ include $(TOPDIR)/config.mk LIB := $(obj)libspi.o +# There are many options which enable SPI, so make this library available +COBJS-y += spi.o + COBJS-$(CONFIG_ALTERA_SPI) += altera_spi.o COBJS-$(CONFIG_ANDES_SPI) += andes_spi.o COBJS-$(CONFIG_ARMADA100_SPI) += armada100_spi.o diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c new file mode 100644 index 0000000000..cb36c5e6eb --- /dev/null +++ b/drivers/spi/spi.c @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but without any warranty; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <malloc.h> +#include <spi.h> + +void *spi_do_alloc_slave(int offset, int size, unsigned int bus, + unsigned int cs) +{ + struct spi_slave *slave; + void *ptr; + + ptr = malloc(size); + if (ptr) { + memset(ptr, '\0', size); + slave = (struct spi_slave *)(ptr + offset); + slave->bus = bus; + slave->cs = cs; + } + + return ptr; +} |