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ARM: mvebu: Add a SOC bus device entry

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Add the SoC Family, device ID and revision to /sys/bus/soc.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lkml.kernel.org/r/1393955507-26436-1-git-send-email-andrew@lunn.ch
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Andrew Lunn 2014-03-04 18:51:47 +01:00 committed by Jason Cooper
parent c9eaa447e7
commit 56a705a48e
2 changed files with 31 additions and 0 deletions
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1
arch/arm/mach-mvebu/Kconfig
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@ -6,6 +6,7 @@ config ARCH_MVEBU
select IRQ_DOMAIN
select PINCTRL
select PLAT_ORION
select SOC_BUS
select MVEBU_MBUS
select ZONE_DMA if ARM_LPAE
select ARCH_REQUIRE_GPIOLIB

30
arch/arm/mach-mvebu/mvebu-soc-id.c
View File

@ -23,6 +23,8 @@
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/slab.h>
#include <linux/sys_soc.h>
#include "mvebu-soc-id.h"
#define PCIE_DEV_ID_OFF 0x0
@ -118,3 +120,31 @@ static int __init mvebu_soc_id_init(void)
}
core_initcall(mvebu_soc_id_init);
static int __init mvebu_soc_device(void)
{
struct soc_device_attribute *soc_dev_attr;
struct soc_device *soc_dev;
/* Also protects against running on non-mvebu systems */
if (!is_id_valid)
return 0;
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
if (!soc_dev_attr)
return -ENOMEM;
soc_dev_attr->family = kasprintf(GFP_KERNEL, "Marvell");
soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%X", soc_rev);
soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%X", soc_dev_id);
soc_dev = soc_device_register(soc_dev_attr);
if (IS_ERR(soc_dev)) {
kfree(soc_dev_attr->family);
kfree(soc_dev_attr->revision);
kfree(soc_dev_attr->soc_id);
kfree(soc_dev_attr);
}
return 0;
}
postcore_initcall(mvebu_soc_device);