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https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
78 lines
2.8 KiB
C
78 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2011
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* eInfochips Ltd. <www.einfochips.com>
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* Written-by: Ajay Bhargav <contact@8051projects.net>
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*
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* (C) Copyright 2010
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* Marvell Semiconductor <www.marvell.com>
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*/
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#ifndef __ARMADA100_SPI_H_
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#define __ARMADA100_SPI_H_
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#include <asm/arch/armada100.h>
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#define CAT_BASE_ADDR(x) ARMD1_SSP ## x ## _BASE
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#define SSP_REG_BASE(x) CAT_BASE_ADDR(x)
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/*
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* SSP Serial Port Registers
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* refer Appendix A.26
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*/
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struct ssp_reg {
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u32 sscr0; /* SSP Control Register 0 - 0x000 */
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u32 sscr1; /* SSP Control Register 1 - 0x004 */
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u32 sssr; /* SSP Status Register - 0x008 */
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u32 ssitr; /* SSP Interrupt Test Register - 0x00C */
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u32 ssdr; /* SSP Data Register - 0x010 */
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u32 pad1[5];
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u32 ssto; /* SSP Timeout Register - 0x028 */
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u32 sspsp; /* SSP Programmable Serial Protocol Register - 0x02C */
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u32 sstsa; /* SSP TX Timeslot Active Register - 0x030 */
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u32 ssrsa; /* SSP RX Timeslot Active Register - 0x034 */
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u32 sstss; /* SSP Timeslot Status Register - 0x038 */
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};
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#define DEFAULT_WORD_LEN 8
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#define SSP_FLUSH_NUM 0x2000
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#define RX_THRESH_DEF 8
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#define TX_THRESH_DEF 8
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#define TIMEOUT_DEF 1000
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#define SSCR1_RIE (1 << 0) /* Receive FIFO Interrupt Enable */
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#define SSCR1_TIE (1 << 1) /* Transmit FIFO Interrupt Enable */
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#define SSCR1_LBM (1 << 2) /* Loop-Back Mode */
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#define SSCR1_SPO (1 << 3) /* Motorola SPI SSPSCLK polarity
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setting */
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#define SSCR1_SPH (1 << 4) /* Motorola SPI SSPSCLK phase setting */
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#define SSCR1_MWDS (1 << 5) /* Microwire Transmit Data Size */
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#define SSCR1_TFT 0x03c0 /* Transmit FIFO Threshold (mask) */
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#define SSCR1_RFT 0x3c00 /* Receive FIFO Threshold (mask) */
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#define SSCR1_TXTRESH(x) ((x - 1) << 6) /* level [1..16] */
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#define SSCR1_RXTRESH(x) ((x - 1) << 10) /* level [1..16] */
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#define SSCR1_TINTE (1 << 19) /* Receiver Time-out
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Interrupt enable */
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#define SSCR0_DSS 0x0f /* Data Size Select (mask) */
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#define SSCR0_DATASIZE(x) (x - 1) /* Data Size Select [4..16] */
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#define SSCR0_FRF 0x30 /* FRame Format (mask) */
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#define SSCR0_MOTO (0x0 << 4) /* Motorola's Serial
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Peripheral Interface */
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#define SSCR0_TI (0x1 << 4) /* TI's Synchronous
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Serial Protocol (SSP) */
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#define SSCR0_NATIONAL (0x2 << 4) /* National Microwire */
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#define SSCR0_ECS (1 << 6) /* External clock select */
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#define SSCR0_SSE (1 << 7) /* Synchronous Serial Port
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Enable */
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#define SSSR_TNF (1 << 2) /* Transmit FIFO Not Full */
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#define SSSR_RNE (1 << 3) /* Receive FIFO Not Empty */
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#define SSSR_BSY (1 << 4) /* SSP Busy */
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#define SSSR_TFS (1 << 5) /* Transmit FIFO Service Request */
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#define SSSR_RFS (1 << 6) /* Receive FIFO Service Request */
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#define SSSR_ROR (1 << 7) /* Receive FIFO Overrun */
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#define SSSR_TINT (1 << 19) /* Receiver Time-out Interrupt */
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#endif /* __ARMADA100_SPI_H_ */
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