diff options
Diffstat (limited to 'arch/arm/mach-mxs/mach-mxs.c')
| -rw-r--r-- | arch/arm/mach-mxs/mach-mxs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c index c109f47e9cbc..25c9d184fa4c 100644 --- a/arch/arm/mach-mxs/mach-mxs.c +++ b/arch/arm/mach-mxs/mach-mxs.c @@ -22,6 +22,7 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/time.h> +#include <asm/system_info.h> #include <asm/system_misc.h> #include "pm.h" @@ -51,6 +52,9 @@ #define MXS_CLR_ADDR 0x8 #define MXS_TOG_ADDR 0xc +#define HW_OCOTP_OPS2 19 /* offset 0x150 */ +#define HW_OCOTP_OPS3 20 /* offset 0x160 */ + static u32 chipid; static u32 socid; @@ -379,6 +383,8 @@ static void __init mxs_machine_init(void) struct device *parent; struct soc_device *soc_dev; struct soc_device_attribute *soc_dev_attr; + u64 soc_uid = 0; + const u32 *ocotp = mxs_get_ocotp(); int ret; soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); @@ -394,8 +400,21 @@ static void __init mxs_machine_init(void) soc_dev_attr->soc_id = mxs_get_soc_id(); soc_dev_attr->revision = mxs_get_revision(); + if (socid == HW_DIGCTL_CHIPID_MX23) { + soc_uid = system_serial_low = ocotp[HW_OCOTP_OPS3]; + } else if (socid == HW_DIGCTL_CHIPID_MX28) { + soc_uid = system_serial_high = ocotp[HW_OCOTP_OPS2]; + soc_uid <<= 32; + system_serial_low = ocotp[HW_OCOTP_OPS3]; + soc_uid |= system_serial_low; + } + + if (soc_uid) + soc_dev_attr->serial_number = kasprintf(GFP_KERNEL, "%016llX", soc_uid); + soc_dev = soc_device_register(soc_dev_attr); if (IS_ERR(soc_dev)) { + kfree(soc_dev_attr->serial_number); kfree(soc_dev_attr->revision); kfree(soc_dev_attr); return; |