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https://github.com/brain-hackers/u-boot-brain
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8a4791fa08
This adds support for the ARM PL022 SPI controller for the standard variant (0x00041022) which has a 16bit wide and 8 locations deep TX/RX FIFO. A few parts were borrowed from the Linux kernel driver. Cc: Armando Visconti <armando.visconti@st.com> Cc: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
29 lines
514 B
C
29 lines
514 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2018
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* Quentin Schulz, Bootlin, quentin.schulz@bootlin.com
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*
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* Structure for use with U_BOOT_DEVICE for pl022 SPI devices or to use
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* in ofdata_to_platdata.
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*/
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#ifndef __PL022_SPI_H__
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#define __PL022_SPI_H__
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#if !CONFIG_IS_ENABLED(OF_PLATDATA)
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#include <clk.h>
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#endif
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#include <fdtdec.h>
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struct pl022_spi_pdata {
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fdt_addr_t addr;
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fdt_size_t size;
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#if !CONFIG_IS_ENABLED(OF_PLATDATA)
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struct clk clk;
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#else
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unsigned int freq;
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#endif
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};
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#endif
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