[PATCH v4 14/19] ram: k3-j721e: Relax version checks for memory controller

Lokesh Vutla lokeshvutla at ti.com
Sat Aug 8 12:52:58 CEST 2020


k3-j721e ddr driver sanity checks for product id and version number.
Version number gets changed for every minor update in the IP. So discard
the version check and just sanity check for product id.

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
 drivers/ram/k3-j721e/lpddr4.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/ram/k3-j721e/lpddr4.c b/drivers/ram/k3-j721e/lpddr4.c
index 2c3892d8d7..fc80fb1e2c 100644
--- a/drivers/ram/k3-j721e/lpddr4.c
+++ b/drivers/ram/k3-j721e/lpddr4.c
@@ -199,7 +199,6 @@ uint32_t lpddr4_init(lpddr4_privatedata * pd, const lpddr4_config * cfg)
 {
 	uint32_t result = 0U;
 	uint16_t productid = 0U;
-	uint32_t version[2] = { 0, 0 };
 
 	result = lpddr4_initsf(pd, cfg);
 	if (result == (uint32_t) CDN_EOK) {
@@ -209,20 +208,7 @@ uint32_t lpddr4_init(lpddr4_privatedata * pd, const lpddr4_config * cfg)
 						     CPS_REG_READ(&
 								  (ctlregbase->
 								   LPDDR4__CONTROLLER_ID__REG))));
-		version[0] =
-		    (uint32_t) (CPS_FLD_READ
-				(LPDDR4__CONTROLLER_VERSION_0__FLD,
-				 CPS_REG_READ(&
-					      (ctlregbase->
-					       LPDDR4__CONTROLLER_VERSION_0__REG))));
-		version[1] =
-		    (uint32_t) (CPS_FLD_READ
-				(LPDDR4__CONTROLLER_VERSION_1__FLD,
-				 CPS_REG_READ(&
-					      (ctlregbase->
-					       LPDDR4__CONTROLLER_VERSION_1__REG))));
-		if ((productid == PRODUCT_ID) && (version[0] == VERSION_0)
-		    && (version[1] == VERSION_1)) {
+		if (productid == PRODUCT_ID) {
 			/* Populating configuration data to pD */
 			pd->ctlbase = ctlregbase;
 			pd->infohandler =
-- 
2.23.0



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