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| author | Wolfgang Denk <wd@denx.de> | 2012-01-05 16:38:50 +0100 | 
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2012-01-05 16:38:50 +0100 | 
| commit | 145afab32c3a049bd646d2eede5f2feba08576c6 (patch) | |
| tree | 52aba8f8d68626195027dc3dc190deef84895bfd /arch/arm/include/asm/arch-tegra2/tegra2_spi.h | |
| parent | 72ebafbe2bd5044eecbfdaa132390a1421db25be (diff) | |
| parent | a747cc0a8c55d69a56a6db80a35cdb48c853447d (diff) | |
| download | olio-uboot-2014.01-145afab32c3a049bd646d2eede5f2feba08576c6.tar.xz olio-uboot-2014.01-145afab32c3a049bd646d2eede5f2feba08576c6.zip | |
Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm:
  tegra2: Optimize out-of-tree build for Ventana.
  tegra: Move boards over to use arch-level board UART function
  tegra: Add support for UART init in cpu board.c
  tegra: Add a function mux feature
  tegra: add clock_ll_start_uart() to enable UART prior to reloc
  tegra: Move clock_early_init() to arch_cpu_init()
  tegra: Move cpu_init_cp15() to arch_cpu_init()
  arm: Tegra: Fix Harmony and Ventana builds in u-boot-tegra/master
  tegra: Fix build error in plutux, medcom
  tegra2: Add Avionic Design Medcom support.
  tegra2: Add Avionic Design Plutux support.
  tegra2: Add common Avionic Design Tamonten support.
  tegra2: Move tegra2_mmc_init() prototype to public header.
  tegra2: Change CONFIG_SYS_TEXT_BASE to 0x00108000.
  tegra2: Always build with USE_PRIVATE_LIBGCC=yes.
  tegra2: Plumb in SPI/UART switch code
  tegra2: spi: Support SPI / UART switch
  tegra2: Implement SPI / UART GPIO switch
  tegra2: Enable SPI environment on Seaboard
  tegra2: config: Enable SPI flash on Seaboard
  tegra2: spi: Add SPI driver for Tegra2 SOC
  tegra2: Add UARTB support
  tegra2: Tidy UART selection
  arm, davinci: Fix build warnings for cam_enc_4xx
  Devkit8000: Switch over to enable_gpmc_cs_config
  arm, davinci: Add support for generating AIS images to the Makefile
  mkimage: Fix variable length header support
  arm, da850evm: Add an SPL for SPI boot
  arm, davinci: Add SPL support for DA850 SoCs
  sf: Add spi_boot() to allow booting from SPI flash in an SPL
  spl: display_options.o is required for SPI flash support in SPL
  ARM: omap3: add support to Technexion twister board
  ARM: omap3: added common configuration for Technexion TAM3517
  vision2: Fix checkpatch warning
Diffstat (limited to 'arch/arm/include/asm/arch-tegra2/tegra2_spi.h')
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/tegra2_spi.h | 76 | 
1 files changed, 76 insertions, 0 deletions
| diff --git a/arch/arm/include/asm/arch-tegra2/tegra2_spi.h b/arch/arm/include/asm/arch-tegra2/tegra2_spi.h new file mode 100644 index 000000000..ceec4287a --- /dev/null +++ b/arch/arm/include/asm/arch-tegra2/tegra2_spi.h @@ -0,0 +1,76 @@ +/* + * NVIDIA Tegra2 SPI-FLASH controller + * + * Copyright 2010-2011 NVIDIA Corporation + * + * This software may be used and distributed according to the + * terms of the GNU Public License, Version 2, incorporated + * herein by reference. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _TEGRA2_SPI_H_ +#define _TEGRA2_SPI_H_ + +#include <asm/types.h> + +struct spi_tegra { +	u32 command;	/* SPI_COMMAND_0 register  */ +	u32 status;	/* SPI_STATUS_0 register */ +	u32 rx_cmp;	/* SPI_RX_CMP_0 register  */ +	u32 dma_ctl;	/* SPI_DMA_CTL_0 register */ +	u32 tx_fifo;	/* SPI_TX_FIFO_0 register */ +	u32 rsvd[3];	/* offsets 0x14 to 0x1F reserved */ +	u32 rx_fifo;	/* SPI_RX_FIFO_0 register */ +}; + +#define SPI_CMD_GO			(1 << 30) +#define SPI_CMD_ACTIVE_SCLK_SHIFT	26 +#define SPI_CMD_ACTIVE_SCLK_MASK	(3 << SPI_CMD_ACTIVE_SCLK_SHIFT) +#define SPI_CMD_CK_SDA			(1 << 21) +#define SPI_CMD_ACTIVE_SDA_SHIFT	18 +#define SPI_CMD_ACTIVE_SDA_MASK		(3 << SPI_CMD_ACTIVE_SDA_SHIFT) +#define SPI_CMD_CS_POL			(1 << 16) +#define SPI_CMD_TXEN			(1 << 15) +#define SPI_CMD_RXEN			(1 << 14) +#define SPI_CMD_CS_VAL			(1 << 13) +#define SPI_CMD_CS_SOFT			(1 << 12) +#define SPI_CMD_CS_DELAY		(1 << 9) +#define SPI_CMD_CS3_EN			(1 << 8) +#define SPI_CMD_CS2_EN			(1 << 7) +#define SPI_CMD_CS1_EN			(1 << 6) +#define SPI_CMD_CS0_EN			(1 << 5) +#define SPI_CMD_BIT_LENGTH		(1 << 4) +#define SPI_CMD_BIT_LENGTH_MASK		0x0000001F + +#define SPI_STAT_BSY			(1 << 31) +#define SPI_STAT_RDY			(1 << 30) +#define SPI_STAT_RXF_FLUSH		(1 << 29) +#define SPI_STAT_TXF_FLUSH		(1 << 28) +#define SPI_STAT_RXF_UNR		(1 << 27) +#define SPI_STAT_TXF_OVF		(1 << 26) +#define SPI_STAT_RXF_EMPTY		(1 << 25) +#define SPI_STAT_RXF_FULL		(1 << 24) +#define SPI_STAT_TXF_EMPTY		(1 << 23) +#define SPI_STAT_TXF_FULL		(1 << 22) +#define SPI_STAT_SEL_TXRX_N		(1 << 16) +#define SPI_STAT_CUR_BLKCNT		(1 << 15) + +#define SPI_TIMEOUT		1000 +#define TEGRA2_SPI_MAX_FREQ	52000000 + + +#endif	/* _TEGRA2_SPI_H_ */ |