commit 1a474381b6f709582c5d71d0d7cc826ab96f8411
author Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Thu Mar 07 16:08:48 2019 +0530
committer Michal Simek <michal.simek@xilinx.com> Tue Apr 16 11:51:34 2019 +0200
tree ffcc46d18ce1ec71d8af0db7dd5d2ad9525e1f3a
parent d6cedcc0cd455f608bbf603e666875dddbb9df2f

spi: zynqmp_gqspi: Fix tap delay values at 100MHz and 150MHz

This patch fixes the tap delay values to be set at 100MHz and 150MHz
as per TRM by fixing the if condition to use <= instead of <.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

drivers/spi/zynqmp_gqspi.c

diff --git a/drivers/spi/zynqmp_gqspi.c b/drivers/spi/zynqmp_gqspi.c
index da9413c..04ea42c 100644
--- a/drivers/spi/zynqmp_gqspi.c
+++ b/drivers/spi/zynqmp_gqspi.c
@@ -267,7 +267,7 @@
 		zynqmp_mmio_read(IOU_TAPDLY_BYPASS_OFST, &tapdlybypass);
 		tapdlybypass |= (TAP_DLY_BYPASS_LQSPI_RX_VALUE <<
 				TAP_DLY_BYPASS_LQSPI_RX_SHIFT);
-	} else if (reqhz < GQSPI_FREQ_100MHZ) {
+	} else if (reqhz <= GQSPI_FREQ_100MHZ) {
 		zynqmp_mmio_read(IOU_TAPDLY_BYPASS_OFST, &tapdlybypass);
 		tapdlybypass |= (TAP_DLY_BYPASS_LQSPI_RX_VALUE <<
 				TAP_DLY_BYPASS_LQSPI_RX_SHIFT);
@@ -277,7 +277,7 @@
 		datadlyadj |= ((GQSPI_USE_DATA_DLY << GQSPI_USE_DATA_DLY_SHIFT)
 				| (GQSPI_DATA_DLY_ADJ_VALUE <<
 					GQSPI_DATA_DLY_ADJ_SHIFT));
-	} else if (reqhz < GQSPI_FREQ_150MHZ) {
+	} else if (reqhz <= GQSPI_FREQ_150MHZ) {
 		lpbkdlyadj = readl(&regs->lpbkdly);
 		lpbkdlyadj |= ((GQSPI_LPBK_DLY_ADJ_LPBK_MASK) |
 				GQSPI_LPBK_DLY_ADJ_DLY_0);