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| author | Andrew Lunn <andrew@lunn.ch> | 2014-03-04 17:51:47 (GMT) |
|---|---|---|
| committer | Jason Cooper <jason@lakedaemon.net> | 2014-04-24 04:31:03 (GMT) |
| commit | 56a705a48eae9c474ba7f82af5c4ff5cf306f654 (patch) | |
| tree | 7b9b4715e54e694240650ad57da14469af3700cf | |
| parent | c9eaa447e77efe77b7fa4c953bd62de8297fd6c5 (diff) | |
| download | linux-56a705a48eae9c474ba7f82af5c4ff5cf306f654.tar.xz | |
ARM: mvebu: Add a SOC bus device entry
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>
| -rw-r--r-- | arch/arm/mach-mvebu/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/mvebu-soc-id.c | 30 |
2 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig index 3f73eec..475cf8a 100644 --- a/arch/arm/mach-mvebu/Kconfig +++ b/arch/arm/mach-mvebu/Kconfig @@ -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 diff --git a/arch/arm/mach-mvebu/mvebu-soc-id.c b/arch/arm/mach-mvebu/mvebu-soc-id.c index f3d4cf5..874a750 100644 --- a/arch/arm/mach-mvebu/mvebu-soc-id.c +++ b/arch/arm/mach-mvebu/mvebu-soc-id.c @@ -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 @@ clk_err: } 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); |