X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Fspi.h;h=9754c53aa1486910dbf5aeb329b1808a57e0e360;hb=HEAD;hp=4c179838eefcaa8f5ee44f542e52a1e219ae504d;hpb=231af7f95a4e96debeb380bd904ebee60f0bd7bf;p=u-boot diff --git a/include/spi.h b/include/spi.h index 4c179838ee..9754c53aa1 100644 --- a/include/spi.h +++ b/include/spi.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Common SPI Interface: Controller-specific definitions * * (C) Copyright 2001 * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com. - * - * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _SPI_H_ @@ -30,10 +29,6 @@ #define SPI_RX_DUAL BIT(12) /* receive with 2 wires */ #define SPI_RX_QUAD BIT(13) /* receive with 4 wires */ -/* SPI bus connection options - see enum spi_dual_flash */ -#define SPI_CONN_DUAL_SHARED (1 << 0) -#define SPI_CONN_DUAL_SEPARATED (1 << 1) - /* Header byte that marks the start of the message */ #define SPI_PREAMBLE_END_BYTE 0xec @@ -90,10 +85,11 @@ struct dm_spi_slave_platdata { * @cs: ID of the chip select connected to the slave. * @mode: SPI mode to use for this slave (see SPI mode flags) * @wordlen: Size of SPI word in number of bits + * @max_read_size: If non-zero, the maximum number of bytes which can + * be read at once. * @max_write_size: If non-zero, the maximum number of bytes which can - * be written at once, excluding command bytes. + * be written at once. * @memory_map: Address of read-only SPI flash access. - * @option: Varies SPI bus options - separate, shared bus. * @flags: Indication of SPI flags. */ struct spi_slave { @@ -107,9 +103,9 @@ struct spi_slave { #endif uint mode; unsigned int wordlen; + unsigned int max_read_size; unsigned int max_write_size; void *memory_map; - u8 option; u8 flags; #define SPI_XFER_BEGIN BIT(0) /* Assert CS before transfer */ @@ -117,7 +113,6 @@ struct spi_slave { #define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END) #define SPI_XFER_MMAP BIT(2) /* Memory Mapped start */ #define SPI_XFER_MMAP_END BIT(3) /* Memory Mapped End */ -#define SPI_XFER_U_PAGE BIT(4) }; /** @@ -321,33 +316,6 @@ static inline int spi_w8r8(struct spi_slave *slave, unsigned char byte) return ret < 0 ? ret : din[1]; } -/** - * Set up a SPI slave for a particular device tree node - * - * This calls spi_setup_slave() with the correct bus number. Call - * spi_free_slave() to free it later. - * - * @param blob: Device tree blob - * @param slave_node: Slave node to use - * @param spi_node: SPI peripheral node to use - * @return pointer to new spi_slave structure - */ -struct spi_slave *spi_setup_slave_fdt(const void *blob, int slave_node, - int spi_node); - -/** - * spi_base_setup_slave_fdt() - helper function to set up a SPI slace - * - * This decodes SPI properties from the slave node to determine the - * chip select and SPI parameters. - * - * @blob: Device tree blob - * @busnum: Bus number to use - * @node: Device tree node for the SPI bus - */ -struct spi_slave *spi_base_setup_slave_fdt(const void *blob, int busnum, - int node); - #ifdef CONFIG_DM_SPI /** @@ -568,7 +536,7 @@ int spi_find_chip_select(struct udevice *bus, int cs, struct udevice **devp); * @node: Node offset to read from * @plat: Place to put the decoded information */ -int spi_slave_ofdata_to_platdata(const void *blob, int node, +int spi_slave_ofdata_to_platdata(struct udevice *dev, struct dm_spi_slave_platdata *plat); /**