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spi: fsl_qspi: Add support for single chip select

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SOC’s 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>
This commit is contained in:
Suresh Gupta 2017-02-21 14:26:46 +05:30 committed by York Sun
parent 7b45b383fd
commit 38a5c57ac5
1 changed files with 4 additions and 1 deletions
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5
drivers/spi/fsl_qspi.c
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@ -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]);