diff options
| author | Gireesh Hiremath | 2021-06-11 16:13:48 +0000 |
|---|---|---|
| committer | Lokesh Vutla | 2021-07-15 17:56:03 +0530 |
| commit | caf9478624878687b7098c3037202d8892b1dee6 (patch) | |
| tree | 00f9715250a7e32103cfa4f1666ac9506edd7443 /drivers/bootcount/Kconfig | |
| parent | 9cd380ef5ff668b5850429f3fbcf141af4eb2202 (diff) | |
am335x, guardian: software update available status is stored in AM3352 RTC scracth register
RTC second scratch register[32-bit]:
-zero byte hold boot count value
-first byte hold update available state
-second byte hold version
-third byte hold magic number
Signed-off-by: Gireesh Hiremath <Gireesh.Hiremath@in.bosch.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210611161350.2141-17-Gireesh.Hiremath@in.bosch.com
Gbp-Pq: Topic apertis/guardian
Gbp-Pq: Name am335x-guardian-software-update-available-status-is-store.patch
Diffstat (limited to 'drivers/bootcount/Kconfig')
| -rw-r--r-- | drivers/bootcount/Kconfig | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/drivers/bootcount/Kconfig b/drivers/bootcount/Kconfig index b5ccea0d9c2..0de2b7bd78c 100644 --- a/drivers/bootcount/Kconfig +++ b/drivers/bootcount/Kconfig @@ -42,6 +42,25 @@ config BOOTCOUNT_AM33XX This requires the RTC clocks, etc, to be enabled prior to use and not all boards with this IP block on it will have the RTC in use. +config BOOTCOUNT_AM33XX_NVMEM + bool "Boot counter in AM33XX RTC IP block with upgrade_available flag" + depends on AM33XX + select SPL_AM33XX_ENABLE_RTC32K_OSC if AM33XX + help + Add support for maintaining bootcount,upgrade_available, + version and BOOTMAGIC in a AM33xx RTC IP block + scratch register2. + + A bootcount driver for the RTC IP block found on many TI platforms. + This requires the RTC clocks, etc, to be enabled prior to use and + not all boards with this IP block on it will have the RTC in use. + + If there is upgrade in software then "upgrade_available" is 1, + "bootcount" is incremented otherwise "upgrade_available" and + "bootcount" is always 0. So the Userspace Application must set + the "upgrade_available" and "bootcount" variable to 0, if a boot + was successfully. + config BOOTCOUNT_ENV bool "Boot counter in environment" help @@ -177,16 +196,25 @@ config SYS_BOOTCOUNT_EXT_NAME config SYS_BOOTCOUNT_ADDR hex "RAM address used for reading and writing the boot counter" - default 0x44E3E000 if BOOTCOUNT_AM33XX + default 0x44E3E000 if BOOTCOUNT_AM33XX || BOOTCOUNT_AM33XX_NVMEM default 0xE0115FF8 if ARCH_LS1043A || ARCH_LS1021A depends on BOOTCOUNT_AM33XX || BOOTCOUNT_GENERIC || BOOTCOUNT_EXT || \ - BOOTCOUNT_I2C + BOOTCOUNT_I2C || BOOTCOUNT_AM33XX_NVMEM help Set the address used for reading and writing the boot counter. config SYS_BOOTCOUNT_MAGIC hex "Magic value for the boot counter" - default 0xB001C041 + default 0xB001C041 if BOOTCOUNT_GENERIC || BOOTCOUNT_EXT || \ + BOOTCOUNT_AM33XX || BOOTCOUNT_ENV || \ + BOOTCOUNT_RAM || BOOTCOUNT_I2C || \ + BOOTCOUNT_AT91 || DM_BOOTCOUNT + default 0xB0 if BOOTCOUNT_AM33XX_NVMEM + depends on BOOTCOUNT_GENERIC || BOOTCOUNT_EXT || \ + BOOTCOUNT_AM33XX || BOOTCOUNT_ENV || \ + BOOTCOUNT_RAM || BOOTCOUNT_I2C || \ + BOOTCOUNT_AT91 || DM_BOOTCOUNT || \ + BOOTCOUNT_AM33XX_NVMEM help Set the magic value used for the boot counter. |