On Thu, May 04, 2023 at 11:07:07AM +0530, Manorit Chawdhry wrote: > On K3 HS-SE devices all the firewalls are locked by default > until sysfw comes up. Rom configures some of the firewall for its usage > along with the SRAM for R5 but the PSRAM region is still locked. > > The K3 MCU Scratchpad for j721s2 was set to a PSRAM region triggering the > firewall exception before sysfw came up. The exception started happening > after adding multi dtb support that accesses the scratchpad for reading > EEPROM contents. > > Old map: > ┌─────────────────────────────────────┐ 0x41c00000 > │ SPL │ > ├─────────────────────────────────────┤ 0x41c61f20 (approx) > │ STACK │ > ├─────────────────────────────────────┤ 0x41c65f20 > │ Global data │ > │ sizeof(struct global_data) = 0xd8 │ > ├─────────────────────────────────────┤ gd->malloc_base = 0x41c66000 > │ HEAP │ > │ CONFIG_SYS_MALLOC_F_LEN = 0x10000 │ > ├─────────────────────────────────────┤ CONFIG_SPL_BSS_START_ADDR > │ SPL BSS │ (0x41c76000) > │ CONFIG_SPL_BSS_MAX_SIZE = 0xA000 │ > ├─────────────────────────────────────┤ (0x41c80000) > │ DM DATA │ > ├─────────────────────────────────────┤ (0x41c84130) (approx) > │ EMPTY │ > └─────────────────────────────────────┘ CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX > (0x41cffbfc) > > New map: > ┌─────────────────────────────────────┐ 0x41c00000 > │ SPL │ > ├─────────────────────────────────────┤ 0x41c61f20 (approx) > │ STACK │ > ├─────────────────────────────────────┤ 0x41c65f20 > │ Global data │ > │ sizeof(struct global_data) = 0xd8 │ > ├─────────────────────────────────────┤ gd->malloc_base = 0x41c66000 > │ HEAP │ > │ CONFIG_SYS_MALLOC_F_LEN = 0x10000 │ > ├─────────────────────────────────────┤ CONFIG_SPL_BSS_START_ADDR > │ SPL BSS │ (0x41c76000) > │ CONFIG_SPL_BSS_MAX_SIZE = 0xA000 │ > ├─────────────────────────────────────┤ (0x41c80000) > │ DM DATA │ > ├─────────────────────────────────────┤ (0x41c84130) (approx) > │ EMPTY │ > ├─────────────────────────────────────┤ SYS_K3_MCU_SCRATCHPAD_BASE > │ SCRATCHPAD │ (0x41cff9fc) > │ SYS_K3_MCU_SCRATCHPAD_SIZE = 0x200 │ > └─────────────────────────────────────┘ CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX > (0x41cffbfc) > > Reviewed-by: Kamlesh Gurudasani <kaml...@ti.com> > Signed-off-by: Manorit Chawdhry <m-chawd...@ti.com>
Applied to u-boot/master, thanks! -- Tom
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