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bg4cd: add SPI controller driver skeleton 

This file provides the SOC specific SPI driver API, it needs to be
filled up with code. Function descriptions can be found in
src/include/spi-generic.h.

BRANCH=none
BUG=chrome-os-partner:32631
TEST=compiles with the upcoming patches applied.

Change-Id: I3546d5f9fb2971f4ccb7a57ce8164fd77686af72
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 0583f17fe3f6a258321765b91eae608e33577afe
Original-Change-Id: I0ee04ca17874a13403007bba80d5e8a7708bc625
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/223719
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9355
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Vadim Bendebury 2014-10-16 11:07:41 -07:00 committed by Patrick Georgi
parent 420b0f692b
commit 32005aa958
1 changed files with 40 additions and 0 deletions
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40
src/soc/marvell/bg4cd/spi.c Normal file
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/*
* This file is part of the coreboot project.
* Copyright 2014 Google Inc.
*
* 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; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stddef.h>
#include <spi-generic.h>
struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs)
{
return NULL;
}
int spi_claim_bus(struct spi_slave *slave)
{
return 0;
}
void spi_release_bus(struct spi_slave *slave)
{
}
int spi_xfer(struct spi_slave *slave, const void *dout,
unsigned out_bytes, void *din, unsigned in_bytes)
{
return 0;
}