linux/arch/arm/mach-kirkwood/mpp.c
Nicolas Schichan 4089fe95bf ARM: Kirkwood: handle mv88f6282 cpu in __kirkwood_variant().
MPP_F6281_MASK would be previously be returned when on mv88f6282,
which would disallow some valid MPP configurations.

Commit 830f8b91 (arm: plat-orion: fix printing of "MPP config
unavailable on this hardware") made this problem visible as an invalid
MPP configuration is now correctly detected and not applied.

Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>
Cc: <stable@vger.kernel.org> # v3.9.x
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-06-06 18:16:04 +00:00

44 lines
1.1 KiB
C

/*
* arch/arm/mach-kirkwood/mpp.c
*
* MPP functions for Marvell Kirkwood SoCs
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <plat/mpp.h>
#include "common.h"
#include "mpp.h"
static unsigned int __init kirkwood_variant(void)
{
u32 dev, rev;
kirkwood_pcie_id(&dev, &rev);
if (dev == MV88F6281_DEV_ID && rev >= MV88F6281_REV_A0)
return MPP_F6281_MASK;
if (dev == MV88F6282_DEV_ID)
return MPP_F6282_MASK;
if (dev == MV88F6192_DEV_ID && rev >= MV88F6192_REV_A0)
return MPP_F6192_MASK;
if (dev == MV88F6180_DEV_ID)
return MPP_F6180_MASK;
pr_err("MPP setup: unknown kirkwood variant (dev %#x rev %#x)\n",
dev, rev);
return 0;
}
void __init kirkwood_mpp_conf(unsigned int *mpp_list)
{
orion_mpp_conf(mpp_list, kirkwood_variant(),
MPP_MAX, DEV_BUS_VIRT_BASE);
}