diff options
| author | Michal Simek <[email protected]> | 2026-07-08 08:53:54 +0200 |
|---|---|---|
| committer | Michal Simek <[email protected]> | 2026-08-12 06:54:37 +0200 |
| commit | 5bca08783b54ce325fb649749de16edede0581d0 (patch) | |
| tree | 2f4db46de7fee7564b3d18321c81b6a034d9e374 /include | |
| parent | fcf44934dfdd0d43eb8f08f413590a44cab3169d (diff) | |
arm64: versal2: Select GIC redistributor base at runtime
The GIC redistributor base address depends on the part: the 2VM3654
device has 4 APU cores and 3 GIC ITS blocks, which shifts the
redistributor region up compared to the base 8 core / single ITS part.
A single U-Boot binary must therefore pick the right base at runtime
instead of relying on the compile-time GICR_BASE used by the generic
lowlevel_init().
Add a SoC specific lowlevel_init() that reads the PMC TAP IDCODE and
selects GICR_BASE_2VM3654 for the 2VM3654 device, otherwise keeps the
default GICR_BASE. CONFIG_ARMV8_MULTIENTRY is not supported on Versal
Gen 2 so the generic slave handling is intentionally dropped.
Signed-off-by: Michal Simek <[email protected]>
Link: https://patch.msgid.link/4c0dc2b6e29d300db15be0844879ab4d028d98a9.1783493630.git.michal.simek@amd.com
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/amd_versal2.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/configs/amd_versal2.h b/include/configs/amd_versal2.h index a07e12bd146..00627dcd943 100644 --- a/include/configs/amd_versal2.h +++ b/include/configs/amd_versal2.h @@ -19,6 +19,15 @@ #define GICD_BASE 0xe2000000 #define GICR_BASE 0xe2060000 +/* + * The 2VM3654 part has 4 APU cores and 3 GIC ITS blocks (vs 8 cores and a + * single ITS on the base part), which moves the redistributor region up by + * the two extra ITS blocks. The right base is selected at runtime in + * lowlevel_init() based on the PMC TAP IDCODE. + */ +#define GICR_BASE_2VM3654 0xe20a0000 +#define GICR_IDCODE_2VM3654 0x04d98093 + /* Serial setup */ #define CFG_SYS_BAUDRATE_TABLE \ { 4800, 9600, 19200, 38400, 57600, 115200 } |