diff options
Diffstat (limited to 'nuttx/arch/arm/src/sam34/chip/sam_spi.h')
| -rw-r--r-- | nuttx/arch/arm/src/sam34/chip/sam_spi.h | 39 |
1 files changed, 31 insertions, 8 deletions
diff --git a/nuttx/arch/arm/src/sam34/chip/sam_spi.h b/nuttx/arch/arm/src/sam34/chip/sam_spi.h index 91720647f..887b7f656 100644 --- a/nuttx/arch/arm/src/sam34/chip/sam_spi.h +++ b/nuttx/arch/arm/src/sam34/chip/sam_spi.h @@ -1,5 +1,6 @@ /**************************************************************************************** * arch/arm/src/sam34/chip/sam_spi.h + * Serial Peripheral Interface (SPI) definitions for the SAM3U and SAM4S * * Copyright (C) 2009, 2011, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> @@ -67,7 +68,8 @@ /* 0x40-0xe0: Reserved */ #define SAM_SPI_WPCR_OFFSET 0xe4 /* Write Protection Control Register */ #define SAM_SPI_WPSR_OFFSET 0xe8 /* Write Protection Status Register */ - /* 0xec-0xf8: Reserved*/ + /* 0xec-0xfc: Reserved */ + /* 0x100-0x124 Reserved for PDC Registers */ /* SPI register adresses ****************************************************************/ @@ -105,6 +107,10 @@ #define SPI_MR_LLB (1 << 7) /* Bit 7: Local Loopback Enable */ #define SPI_MR_PCS_SHIFT (16) /* Bits 16-19: Peripheral Chip Select */ #define SPI_MR_PCS_MASK (15 << SPI_MR_PCS_SHIFT) +# define SPI_MR_PCS0 (0 << SPI_MR_PCS_SHIFT) /* NPCS[3:0] = 1110 (w/PCSDEC=0) */ +# define SPI_MR_PCS1 (1 << SPI_MR_PCS_SHIFT) /* NPCS[3:0] = 1100 (w/PCSDEC=0) */ +# define SPI_MR_PCS2 (3 << SPI_MR_PCS_SHIFT) /* NPCS[3:0] = 1011 (w/PCSDEC=0) */ +# define SPI_MR_PCS3 (7 << SPI_MR_PCS_SHIFT) /* NPCS[3:0] = 0111 (w/PCSDEC=0) */ #define SPI_MR_DLYBCS_SHIFT (24) /* Bits 24-31: Delay Between Chip Selects */ #define SPI_MR_DLYBCS_MASK (0xff << SPI_MR_DLYBCS_SHIFT) @@ -114,6 +120,10 @@ #define SPI_RDR_RD_MASK (0xffff << SPI_RDR_RD_SHIFT) #define SPI_RDR_PCS_SHIFT (16) /* Bits 16-19: Peripheral Chip Select */ #define SPI_RDR_PCS_MASK (15 << SPI_RDR_PCS_SHIFT) +# define SPI_RDR_PCS0 (0 << SPI_RDR_PCS_SHIFT) /* NPCS[3:0] = 1110 (w/PCSDEC=0) */ +# define SPI_RDR_PCS1 (1 << SPI_RDR_PCS_SHIFT) /* NPCS[3:0] = 1100 (w/PCSDEC=0) */ +# define SPI_RDR_PCS2 (3 << SPI_RDR_PCS_SHIFT) /* NPCS[3:0] = 1011 (w/PCSDEC=0) */ +# define SPI_RDR_PCS3 (7 << SPI_RDR_PCS_SHIFT) /* NPCS[3:0] = 0111 (w/PCSDEC=0) */ /* SPI Transmit Data Register */ @@ -121,6 +131,10 @@ #define SPI_TDR_TD_MASK (0xffff << SPI_TDR_TD_SHIFT) #define SPI_TDR_PCS_SHIFT (16) /* Bits 16-19: Peripheral Chip Select */ #define SPI_TDR_PCS_MASK (15 << SPI_TDR_PCS_SHIFT) +# define SPI_TDR_PCS0 (0 << SPI_TDR_PCS_SHIFT) /* NPCS[3:0] = 1110 (w/PCSDEC=0) */ +# define SPI_TDR_PCS1 (1 << SPI_TDR_PCS_SHIFT) /* NPCS[3:0] = 1100 (w/PCSDEC=0) */ +# define SPI_TDR_PCS2 (3 << SPI_TDR_PCS_SHIFT) /* NPCS[3:0] = 1011 (w/PCSDEC=0) */ +# define SPI_TDR_PCS3 (7 << SPI_TDR_PCS_SHIFT) /* NPCS[3:0] = 0111 (w/PCSDEC=0) */ #define SPI_TDR_LASTXFER (1 << 24) /* Bit 24: Last Transfer */ /* SPI Status Register, SPI Interrupt Enable Register, SPI Interrupt Disable Register, @@ -131,6 +145,14 @@ #define SPI_INT_TDRE (1 << 1) /* Bit 1: Transmit Data Register Empty Interrupt */ #define SPI_INT_MODF (1 << 2) /* Bit 2: Mode Fault Error Interrupt */ #define SPI_INT_OVRES (1 << 3) /* Bit 3: Overrun Error Interrupt */ + +#if defined(CONFIG_ARCH_CHIP_SAM4S) +# define SPI_INT_ENDRX (1 << 4) /* Bit 4: End of RX buffer */ +# define SPI_INT_ENDTX (1 << 5) /* Bit 5: End of TX buffer */ +# define SPI_INT_RXBUFF (1 << 6) /* Bit 6: RX Buffer Full */ +# define SPI_INT_TXBUFE (1 << 7) /* Bit 7: TX Buffer Empty */ +#endif + #define SPI_INT_NSSR (1 << 8) /* Bit 8: NSS Rising Interrupt */ #define SPI_INT_TXEMPTY (1 << 9) /* Bit 9: Transmission Registers Empty Interrupt */ #define SPI_INT_UNDES (1 << 10) /* Bit 10: Underrun Error Status Interrupt (slave) */ @@ -163,16 +185,17 @@ /* SPI Write Protection Control Register */ -#define SPI_WPCR_SPIWPEN (1 << 0) /* Bit 0: SPI Write Protection Enable */ -#define SPI_WPCR_SPIWPKEY_SHIFT (8) /* Bits 8-31: SPI Write Protection Key Password */ -#define SPI_WPCR_SPIWPKEY_MASK (0x00ffffff << SPI_WPCR_SPIWPKEY_SHIFT) +#define SPI_WPCR_WPEN (1 << 0) /* Bit 0: SPI Write Protection Enable */ +#define SPI_WPCR_WPKEY_SHIFT (8) /* Bits 8-31: SPI Write Protection Key Password */ +#define SPI_WPCR_WPKEY_MASK (0x00ffffff << SPI_WPCR_WPKEY_SHIFT) +# define SPI_WPCR_WPKEY (0x00535049 << SPI_WPCR_WPKEY_SHIFT) /* SPI Write Protection Status Register */ -#define SPI_WPSR_SPIWPVS_SHIFT (0) /* Bits 0-2: SPI Write Protection Violation Status */ -#define SPI_WPSR_SPIWPVS_MASK (7 << SPI_WPSR_SPIWPVS_SHIFT) -#define SPI_WPSR_SPIWPVSRC_SHIFT (8) /* Bits 8-15: SPI Write Protection Violation Source */ -#define SPI_WPSR_SPIWPVSRC_MASK (0xff << SPI_WPSR_SPIWPVSRC_SHIFT) +#define SPI_WPSR_WPVS_SHIFT (0) /* Bits 0-2: SPI Write Protection Violation Status */ +#define SPI_WPSR_WPVS_MASK (7 << SPI_WPSR_WPVS_SHIFT) +#define SPI_WPSR_WPVSRC_SHIFT (8) /* Bits 8-15: SPI Write Protection Violation Source */ +#define SPI_WPSR_WPVSRC_MASK (0xff << SPI_WPSR_WPVSRC_SHIFT) /**************************************************************************************** * Public Types |