Merged TI feature rpmsg into ti-linux-4.19.y

TI-Feature: rpmsg
TI-Branch: rpmsg-ti-linux-4.19.y-intg

* 'rpmsg-ti-linux-4.19.y-intg' of git://git.ti.com/rpmsg/rpmsg:
  remoteproc/k3-r5: initialize TCM memories for ECC

Signed-off-by: LCPD Auto Merger <lcpd_integration@list.ti.com>

drivers/remoteproc/ti_k3_r5_remoteproc.c

@@ -385,6 +385,17 @@ static int k3_r5_rproc_prepare(struct rproc *rproc)
 		dev_err(dev, "unable to enable cores for TCM loading, ret = %d\n",
 			ret);
 
+	/*
+	 * Zero out both TCMs unconditionally (access from v8 Arm core is not
+	 * affected by ATCM & BTCM enable configuration values) so that ECC
+	 * can be effective on all TCM addresses.
+	 */
+	dev_dbg(dev, "zeroing out ATCM memory\n");
+	memset(core->mem[0].cpu_addr, 0x00, core->mem[0].size);
+
+	dev_dbg(dev, "zeroing out BTCM memory\n");
+	memset(core->mem[1].cpu_addr, 0x00, core->mem[1].size);
+
 	return ret;
 }