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| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2020-05-28 06:39:14 +0300 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@oracle.com> | 2020-05-28 06:39:14 +0300 |
| commit | 907a2b7e2fc746ac3b57b7eb64c220b81d74fc42 (patch) | |
| tree | 038747ac1c82c9e42d2aba0b862c4567a1df2308 /drivers/soc/ti/Makefile | |
| parent | 232150cc32ea375dc5d6b0a05ecab224c87ca7ee (diff) | |
| download | linux-907a2b7e2fc746ac3b57b7eb64c220b81d74fc42.tar.xz | |
soc: ti: add k3 platforms chipid module driver
The Texas Instruments K3 Multicore SoC platforms have chipid module which
is represented by CTRLMMR_xxx_JTAGID register and contains information
about SoC id and revision.
Bits:
31-28 VARIANT Device variant
27-12 PARTNO Part number
11-1 MFG Indicates TI as manufacturer (0x17)
1 Always 1
This patch adds corresponding driver to identify the TI K3 SoC family and
revision, and registers this information with the SoC bus. It is available
under /sys/devices/soc0/ for user space, and can be checked, where needed,
in Kernel using soc_device_match().
Identification is done by:
- checking MFG to be TI ID
- retrieving Device variant (revision)
- retrieving Part number and convert it to the family
- retrieving machine from DT "/model"
Example J721E:
# cat /sys/devices/soc0/{machine,family,revision}
Texas Instruments K3 J721E SoC
J721E
SR1.0
Example AM65x:
# cat /sys/devices/soc0/{machine,family,revision}
Texas Instruments AM654 Base Board
AM65X
SR1.0
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Diffstat (limited to 'drivers/soc/ti/Makefile')
| -rw-r--r-- | drivers/soc/ti/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/soc/ti/Makefile b/drivers/soc/ti/Makefile index bec827937a5f..1110e5c98685 100644 --- a/drivers/soc/ti/Makefile +++ b/drivers/soc/ti/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_WKUP_M3_IPC) += wkup_m3_ipc.o obj-$(CONFIG_TI_SCI_PM_DOMAINS) += ti_sci_pm_domains.o obj-$(CONFIG_TI_SCI_INTA_MSI_DOMAIN) += ti_sci_inta_msi.o obj-$(CONFIG_TI_K3_RINGACC) += k3-ringacc.o +obj-$(CONFIG_TI_K3_SOCINFO) += k3-socinfo.o |