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spi: dw: Rename registers to match datasheet

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A few registers had slightly different names from what is in the datasheet.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Sean Anderson 2020-10-16 18:57:47 -04:00 committed by Jagan Teki
parent c785f43ffd
commit 3004034989
1 changed files with 9 additions and 9 deletions
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18
drivers/spi/designware_spi.c
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@ -27,14 +27,14 @@
#include <asm/io.h>
/* Register offsets */
#define DW_SPI_CTRL0 0x00
#define DW_SPI_CTRL1 0x04
#define DW_SPI_CTRLR0 0x00
#define DW_SPI_CTRLR1 0x04
#define DW_SPI_SSIENR 0x08
#define DW_SPI_MWCR 0x0c
#define DW_SPI_SER 0x10
#define DW_SPI_BAUDR 0x14
#define DW_SPI_TXFLTR 0x18
#define DW_SPI_RXFLTR 0x1c
#define DW_SPI_TXFTLR 0x18
#define DW_SPI_RXFTLR 0x1c
#define DW_SPI_TXFLR 0x20
#define DW_SPI_RXFLR 0x24
#define DW_SPI_SR 0x28
@ -191,13 +191,13 @@ static void spi_hw_init(struct udevice *bus, struct dw_spi_priv *priv)
u32 fifo;
for (fifo = 1; fifo < 256; fifo++) {
dw_write(priv, DW_SPI_TXFLTR, fifo);
if (fifo != dw_read(priv, DW_SPI_TXFLTR))
dw_write(priv, DW_SPI_TXFTLR, fifo);
if (fifo != dw_read(priv, DW_SPI_TXFTLR))
break;
}
priv->fifo_len = (fifo == 1) ? 0 : fifo;
dw_write(priv, DW_SPI_TXFLTR, 0);
dw_write(priv, DW_SPI_TXFTLR, 0);
}
dev_dbg(bus, "fifo_len=%d\n", priv->fifo_len);
}
@ -443,8 +443,8 @@ static int dw_spi_xfer(struct udevice *dev, unsigned int bitlen,
dev_dbg(dev, "cr0=%08x rx=%p tx=%p len=%d [bytes]\n", cr0, rx, tx,
priv->len);
/* Reprogram cr0 only if changed */
if (dw_read(priv, DW_SPI_CTRL0) != cr0)
dw_write(priv, DW_SPI_CTRL0, cr0);
if (dw_read(priv, DW_SPI_CTRLR0) != cr0)
dw_write(priv, DW_SPI_CTRLR0, cr0);
/*
* Configure the desired SS (slave select 0...3) in the controller