[PATCH] ARM: am335x: beaglebone: Fix DDR register values

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



For the DDR2 PHY register values there are tons of warnings that more
than 32bit are required to store the values. Looking at the reference
manual it seems only the lower ten bits have any meaning, so drop all
other values.

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
 arch/arm/boards/beaglebone/lowlevel.c | 26 ++++++--------------------
 1 file changed, 6 insertions(+), 20 deletions(-)

diff --git a/arch/arm/boards/beaglebone/lowlevel.c b/arch/arm/boards/beaglebone/lowlevel.c
index a56b4b6240..f2e1690b15 100644
--- a/arch/arm/boards/beaglebone/lowlevel.c
+++ b/arch/arm/boards/beaglebone/lowlevel.c
@@ -48,26 +48,12 @@ static const struct am33xx_emif_regs ddr2_regs = {
 };
 
 static const struct am33xx_ddr_data ddr2_data = {
-	.rd_slave_ratio0        = (DDR2_RD_DQS << 30) | (DDR2_RD_DQS << 20) |
-				(DDR2_RD_DQS << 10) | (DDR2_RD_DQS << 0),
-	.wr_dqs_slave_ratio0    = (DDR2_WR_DQS << 30) | (DDR2_WR_DQS << 20) |
-				(DDR2_WR_DQS << 10) | (DDR2_WR_DQS << 0),
-	.wrlvl_init_ratio0	= (DDR2_PHY_WRLVL << 30) |
-				(DDR2_PHY_WRLVL << 20) |
-				(DDR2_PHY_WRLVL << 10) |
-				(DDR2_PHY_WRLVL << 0),
-	.gatelvl_init_ratio0	= (DDR2_PHY_GATELVL << 30) |
-				(DDR2_PHY_GATELVL << 20) |
-				(DDR2_PHY_GATELVL << 10) |
-				(DDR2_PHY_GATELVL << 0),
-	.fifo_we_slave_ratio0	= (DDR2_PHY_FIFO_WE << 30) |
-				(DDR2_PHY_FIFO_WE << 20) |
-				(DDR2_PHY_FIFO_WE << 10) |
-				(DDR2_PHY_FIFO_WE << 0),
-	.wr_slave_ratio0        = (DDR2_PHY_WR_DATA << 30) |
-				(DDR2_PHY_WR_DATA << 20) |
-				(DDR2_PHY_WR_DATA << 10) |
-				(DDR2_PHY_WR_DATA << 0),
+	.rd_slave_ratio0        = DDR2_RD_DQS,
+	.wr_dqs_slave_ratio0    = DDR2_WR_DQS,
+	.wrlvl_init_ratio0	= DDR2_PHY_WRLVL,
+	.gatelvl_init_ratio0	= DDR2_PHY_GATELVL,
+	.fifo_we_slave_ratio0	= DDR2_PHY_FIFO_WE,
+	.wr_slave_ratio0        = DDR2_PHY_WR_DATA,
 	.use_rank0_delay	= 0x01,
 	.dll_lock_diff0		= 0x0,
 };
-- 
2.16.1


_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox



[Index of Archives]     [Linux Embedded]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux