diff options
| author | Quentin Schulz <quentin.schulz@bootlin.com> | 2018-08-31 16:28:29 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-09-25 21:49:18 -0400 |
| commit | 8a4791fa08fb456f9cf8ef95083ddd4e0d07b48e (patch) | |
| tree | 7a9525acb8c0b1c338118da69876b732d3ef28c1 /include | |
| parent | 8451942f7c86c7fc0e25e0b5df986be93e126995 (diff) | |
spi: add support for ARM PL022 SPI controller
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/dm/platform_data/pl022_spi.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/dm/platform_data/pl022_spi.h b/include/dm/platform_data/pl022_spi.h new file mode 100644 index 0000000000..77fe6da3cb --- /dev/null +++ b/include/dm/platform_data/pl022_spi.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2018 + * Quentin Schulz, Bootlin, quentin.schulz@bootlin.com + * + * Structure for use with U_BOOT_DEVICE for pl022 SPI devices or to use + * in ofdata_to_platdata. + */ + +#ifndef __PL022_SPI_H__ +#define __PL022_SPI_H__ + +#if !CONFIG_IS_ENABLED(OF_PLATDATA) +#include <clk.h> +#endif +#include <fdtdec.h> + +struct pl022_spi_pdata { + fdt_addr_t addr; + fdt_size_t size; +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + struct clk clk; +#else + unsigned int freq; +#endif +}; + +#endif |