[PATCH v2] soc: qcom: ubwc: disable bank swizzling for Glymur platform

From: Dmitry Baryshkov

Date: Sat Feb 28 2026 - 16:32:49 EST


Due to the way the DDR controller is organized on Glymur, hardware
engineers strongly recommended disabling UBWC bank swizzling on Glymur.
Follow that recommendation.

Fixes: 9b21c3bd2480 ("soc: qcom: ubwc: Add configuration Glymur platform")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
---
Changes in v2:
- Fix the syntax error...
- Link to v1: https://lore.kernel.org/r/20260228-fix-glymur-ubwc-v1-1-d80e3fe0dcc7@xxxxxxxxxxxxxxxx
---
drivers/soc/qcom/ubwc_config.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/soc/qcom/ubwc_config.c b/drivers/soc/qcom/ubwc_config.c
index 1c25aaf55e52..8304463f238a 100644
--- a/drivers/soc/qcom/ubwc_config.c
+++ b/drivers/soc/qcom/ubwc_config.c
@@ -231,8 +231,7 @@ static const struct qcom_ubwc_cfg_data x1e80100_data = {
static const struct qcom_ubwc_cfg_data glymur_data = {
.ubwc_enc_version = UBWC_5_0,
.ubwc_dec_version = UBWC_5_0,
- .ubwc_swizzle = UBWC_SWIZZLE_ENABLE_LVL2 |
- UBWC_SWIZZLE_ENABLE_LVL3,
+ .ubwc_swizzle = 0,
.ubwc_bank_spread = true,
/* TODO: highest_bank_bit = 15 for LP_DDR4 */
.highest_bank_bit = 16,

---
base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
change-id: 20260228-fix-glymur-ubwc-f673d5ca0581

Best regards,
--
With best wishes
Dmitry