Split the RO/RX and RW sections so that they can have
independent pmp entries with required permissions. The
split size is ensured to be a power-of-2 as required by
pmp.
_fw_rw_offset symbol marks the beginning of the data
section.
Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
. = ALIGN(0x1000); /* Ensure next section is page aligned */
+ /*
+ * PMP regions must be to be power-of-2. RO/RW will have separate
+ * regions, so ensure that the split is power-of-2.
+ */
+ . = ALIGN(1 << LOG2CEIL(SIZEOF(.rodata) + SIZEOF(.text)));
+
+ PROVIDE(_fw_rw_offset = (. - _fw_start));
+
/* Beginning of the read-write data sections */
.data :