fix(imx8m): fix coverity out of bound access issue
Fix the out of bound access to the rank setting array.
Fix Coverity issue:
CID 6474575: Out-of-bounds access (OVERRUN)
CID 11014855: Unused value (UNUSED_VALUE)
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Change-Id: I5d9ef90f1479e5d46d1b6c8693a27e3abd614766
diff --git a/plat/imx/imx8m/ddr/dram_retention.c b/plat/imx/imx8m/ddr/dram_retention.c
index adcae57..7572e86 100644
--- a/plat/imx/imx8m/ddr/dram_retention.c
+++ b/plat/imx/imx8m/ddr/dram_retention.c
@@ -32,6 +32,9 @@
uint32_t i, offset;
uint32_t pstate_num = dram_info.num_fsp;
+ /* only support maximum 3 setpoints */
+ pstate_num = (pstate_num > MAX_FSP_NUM) ? MAX_FSP_NUM : pstate_num;
+
for (i = 0U; i < pstate_num; i++) {
offset = i ? (i + 1) * 0x1000 : 0U;
mmio_write_32(DDRC_DRAMTMG2(0) + offset, dram_info.rank_setting[i][0]);