HSD: #1508430891-4: ddr: altera: soc64: Add secure region support for ATF flow

Setting up firewall regions based on SDRAM memory banks configuration
(up to CONFIG_NR_DRAM_BANKS banks) instead of using whole address space.

First 1 MiB (0 to 0xfffff) of SDRAM is configured as secure region,
other address spaces are non-secure regions. The ARM Trusted Firmware (ATF)
image is located in this first 1 MiB memory region. So, this can prevent
software executing at non-secure state EL0-EL2 and non-secure masters
access to secure region.

Add common function for firewall setup and reuse for all SoC64 devices.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>

---
v4: - Remove FW_MPU_DDR_SCR_READL()
    - Change to use struct bd_info in header file.
v3: Change to use struct bd_info.
v2: Rename sdram_set_fw() to sdram_set_firewall().

0 files changed, 0 insertions, 0 deletions