From 38a5c57ac57614079061678bec277b330e958041 Mon Sep 17 00:00:00 2001
From: Suresh Gupta <suresh.gupta@nxp.com>
Date: Tue, 21 Feb 2017 14:26:46 +0530
Subject: [PATCH] spi: fsl_qspi: Add support for single chip select
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SOCâs like LS1012A has only one chip select signal for QSPI flash.
Avoid scanning other flash.
Signed-off-by: Suresh Gupta <suresh.gupta@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
---
drivers/spi/fsl_qspi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c
index b2a058380f..e61c67b088 100644
--- a/drivers/spi/fsl_qspi.c
+++ b/drivers/spi/fsl_qspi.c
@@ -1037,8 +1037,11 @@ static int fsl_qspi_probe(struct udevice *bus)
* setting the size of these devices to 0. This would ensure
* that the complete memory map is assigned to only one flash device.
*/
- qspi_write32(priv->flags, &priv->regs->sfa1ad, priv->amba_base[1]);
+ qspi_write32(priv->flags, &priv->regs->sfa1ad,
+ priv->amba_base[0] + amba_size_per_chip);
switch (priv->num_chipselect) {
+ case 1:
+ break;
case 2:
qspi_write32(priv->flags, &priv->regs->sfa2ad,
priv->amba_base[1]);
--
2.39.5