diff options
Diffstat (limited to 'arch/arm/plat-pxa')
| -rw-r--r-- | arch/arm/plat-pxa/include/plat/ssp.h | 186 | ||||
| -rw-r--r-- | arch/arm/plat-pxa/ssp.c | 2 |
2 files changed, 1 insertions, 187 deletions
diff --git a/arch/arm/plat-pxa/include/plat/ssp.h b/arch/arm/plat-pxa/include/plat/ssp.h deleted file mode 100644 index fe43150690ed..000000000000 --- a/arch/arm/plat-pxa/include/plat/ssp.h +++ /dev/null @@ -1,186 +0,0 @@ -/* - * ssp.h - * - * Copyright (C) 2003 Russell King, All Rights Reserved. - * - * 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 driver supports the following PXA CPU/SSP ports:- - * - * PXA250 SSP - * PXA255 SSP, NSSP - * PXA26x SSP, NSSP, ASSP - * PXA27x SSP1, SSP2, SSP3 - * PXA3xx SSP1, SSP2, SSP3, SSP4 - */ - -#ifndef __ASM_ARCH_SSP_H -#define __ASM_ARCH_SSP_H - -#include <linux/list.h> -#include <linux/io.h> - -/* - * SSP Serial Port Registers - * PXA250, PXA255, PXA26x and PXA27x SSP controllers are all slightly different. - * PXA255, PXA26x and PXA27x have extra ports, registers and bits. - */ - -#define SSCR0 (0x00) /* SSP Control Register 0 */ -#define SSCR1 (0x04) /* SSP Control Register 1 */ -#define SSSR (0x08) /* SSP Status Register */ -#define SSITR (0x0C) /* SSP Interrupt Test Register */ -#define SSDR (0x10) /* SSP Data Write/Data Read Register */ - -#define SSTO (0x28) /* SSP Time Out Register */ -#define SSPSP (0x2C) /* SSP Programmable Serial Protocol */ -#define SSTSA (0x30) /* SSP Tx Timeslot Active */ -#define SSRSA (0x34) /* SSP Rx Timeslot Active */ -#define SSTSS (0x38) /* SSP Timeslot Status */ -#define SSACD (0x3C) /* SSP Audio Clock Divider */ -#define SSACDD (0x40) /* SSP Audio Clock Dither Divider */ - -/* Common PXA2xx bits first */ -#define SSCR0_DSS (0x0000000f) /* Data Size Select (mask) */ -#define SSCR0_DataSize(x) ((x) - 1) /* Data Size Select [4..16] */ -#define SSCR0_FRF (0x00000030) /* FRame Format (mask) */ -#define SSCR0_Motorola (0x0 << 4) /* Motorola's Serial Peripheral Interface (SPI) */ -#define SSCR0_TI (0x1 << 4) /* Texas Instruments' Synchronous Serial Protocol (SSP) */ -#define SSCR0_National (0x2 << 4) /* National Microwire */ -#define SSCR0_ECS (1 << 6) /* External clock select */ -#define SSCR0_SSE (1 << 7) /* Synchronous Serial Port Enable */ -#define SSCR0_SCR(x) ((x) << 8) /* Serial Clock Rate (mask) */ - -/* PXA27x, PXA3xx */ -#define SSCR0_EDSS (1 << 20) /* Extended data size select */ -#define SSCR0_NCS (1 << 21) /* Network clock select */ -#define SSCR0_RIM (1 << 22) /* Receive FIFO overrrun interrupt mask */ -#define SSCR0_TUM (1 << 23) /* Transmit FIFO underrun interrupt mask */ -#define SSCR0_FRDC (0x07000000) /* Frame rate divider control (mask) */ -#define SSCR0_SlotsPerFrm(x) (((x) - 1) << 24) /* Time slots per frame [1..8] */ -#define SSCR0_FPCKE (1 << 29) /* FIFO packing enable */ -#define SSCR0_ACS (1 << 30) /* Audio clock select */ -#define SSCR0_MOD (1 << 31) /* Mode (normal or network) */ - - -#define SSCR1_RIE (1 << 0) /* Receive FIFO Interrupt Enable */ -#define SSCR1_TIE (1 << 1) /* Transmit FIFO Interrupt Enable */ -#define SSCR1_LBM (1 << 2) /* Loop-Back Mode */ -#define SSCR1_SPO (1 << 3) /* Motorola SPI SSPSCLK polarity setting */ -#define SSCR1_SPH (1 << 4) /* Motorola SPI SSPSCLK phase setting */ -#define SSCR1_MWDS (1 << 5) /* Microwire Transmit Data Size */ -#define SSCR1_TFT (0x000003c0) /* Transmit FIFO Threshold (mask) */ -#define SSCR1_TxTresh(x) (((x) - 1) << 6) /* level [1..16] */ -#define SSCR1_RFT (0x00003c00) /* Receive FIFO Threshold (mask) */ -#define SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..16] */ - -#define SSSR_TNF (1 << 2) /* Transmit FIFO Not Full */ -#define SSSR_RNE (1 << 3) /* Receive FIFO Not Empty */ -#define SSSR_BSY (1 << 4) /* SSP Busy */ -#define SSSR_TFS (1 << 5) /* Transmit FIFO Service Request */ -#define SSSR_RFS (1 << 6) /* Receive FIFO Service Request */ -#define SSSR_ROR (1 << 7) /* Receive FIFO Overrun */ - - -/* extra bits in PXA255, PXA26x and PXA27x SSP ports */ -#define SSCR0_TISSP (1 << 4) /* TI Sync Serial Protocol */ -#define SSCR0_PSP (3 << 4) /* PSP - Programmable Serial Protocol */ -#define SSCR1_TTELP (1 << 31) /* TXD Tristate Enable Last Phase */ -#define SSCR1_TTE (1 << 30) /* TXD Tristate Enable */ -#define SSCR1_EBCEI (1 << 29) /* Enable Bit Count Error interrupt */ -#define SSCR1_SCFR (1 << 28) /* Slave Clock free Running */ -#define SSCR1_ECRA (1 << 27) /* Enable Clock Request A */ -#define SSCR1_ECRB (1 << 26) /* Enable Clock request B */ -#define SSCR1_SCLKDIR (1 << 25) /* Serial Bit Rate Clock Direction */ -#define SSCR1_SFRMDIR (1 << 24) /* Frame Direction */ -#define SSCR1_RWOT (1 << 23) /* Receive Without Transmit */ -#define SSCR1_TRAIL (1 << 22) /* Trailing Byte */ -#define SSCR1_TSRE (1 << 21) /* Transmit Service Request Enable */ -#define SSCR1_RSRE (1 << 20) /* Receive Service Request Enable */ -#define SSCR1_TINTE (1 << 19) /* Receiver Time-out Interrupt enable */ -#define SSCR1_PINTE (1 << 18) /* Peripheral Trailing Byte Interupt Enable */ -#define SSCR1_IFS (1 << 16) /* Invert Frame Signal */ -#define SSCR1_STRF (1 << 15) /* Select FIFO or EFWR */ -#define SSCR1_EFWR (1 << 14) /* Enable FIFO Write/Read */ - -#define SSSR_BCE (1 << 23) /* Bit Count Error */ -#define SSSR_CSS (1 << 22) /* Clock Synchronisation Status */ -#define SSSR_TUR (1 << 21) /* Transmit FIFO Under Run */ -#define SSSR_EOC (1 << 20) /* End Of Chain */ -#define SSSR_TINT (1 << 19) /* Receiver Time-out Interrupt */ -#define SSSR_PINT (1 << 18) /* Peripheral Trailing Byte Interrupt */ - - -#define SSPSP_SCMODE(x) ((x) << 0) /* Serial Bit Rate Clock Mode */ -#define SSPSP_SFRMP (1 << 2) /* Serial Frame Polarity */ -#define SSPSP_ETDS (1 << 3) /* End of Transfer data State */ -#define SSPSP_STRTDLY(x) ((x) << 4) /* Start Delay */ -#define SSPSP_DMYSTRT(x) ((x) << 7) /* Dummy Start */ -#define SSPSP_SFRMDLY(x) ((x) << 9) /* Serial Frame Delay */ -#define SSPSP_SFRMWDTH(x) ((x) << 16) /* Serial Frame Width */ -#define SSPSP_DMYSTOP(x) ((x) << 23) /* Dummy Stop */ -#define SSPSP_FSRT (1 << 25) /* Frame Sync Relative Timing */ - -/* PXA3xx */ -#define SSPSP_EDMYSTRT(x) ((x) << 26) /* Extended Dummy Start */ -#define SSPSP_EDMYSTOP(x) ((x) << 28) /* Extended Dummy Stop */ -#define SSPSP_TIMING_MASK (0x7f8001f0) - -#define SSACD_SCDB (1 << 3) /* SSPSYSCLK Divider Bypass */ -#define SSACD_ACPS(x) ((x) << 4) /* Audio clock PLL select */ -#define SSACD_ACDS(x) ((x) << 0) /* Audio clock divider select */ -#define SSACD_SCDX8 (1 << 7) /* SYSCLK division ratio select */ - -enum pxa_ssp_type { - SSP_UNDEFINED = 0, - PXA25x_SSP, /* pxa 210, 250, 255, 26x */ - PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */ - PXA27x_SSP, - PXA168_SSP, -}; - -struct ssp_device { - struct platform_device *pdev; - struct list_head node; - - struct clk *clk; - void __iomem *mmio_base; - unsigned long phys_base; - - const char *label; - int port_id; - int type; - int use_count; - int irq; - int drcmr_rx; - int drcmr_tx; -}; - -/** - * pxa_ssp_write_reg - Write to a SSP register - * - * @dev: SSP device to access - * @reg: Register to write to - * @val: Value to be written. - */ -static inline void pxa_ssp_write_reg(struct ssp_device *dev, u32 reg, u32 val) -{ - __raw_writel(val, dev->mmio_base + reg); -} - -/** - * pxa_ssp_read_reg - Read from a SSP register - * - * @dev: SSP device to access - * @reg: Register to read from - */ -static inline u32 pxa_ssp_read_reg(struct ssp_device *dev, u32 reg) -{ - return __raw_readl(dev->mmio_base + reg); -} - -struct ssp_device *pxa_ssp_request(int port, const char *label); -void pxa_ssp_free(struct ssp_device *); -#endif /* __ASM_ARCH_SSP_H */ diff --git a/arch/arm/plat-pxa/ssp.c b/arch/arm/plat-pxa/ssp.c index c6357e554aba..58b79809d20c 100644 --- a/arch/arm/plat-pxa/ssp.c +++ b/arch/arm/plat-pxa/ssp.c @@ -28,11 +28,11 @@ #include <linux/clk.h> #include <linux/err.h> #include <linux/platform_device.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/io.h> #include <asm/irq.h> #include <mach/hardware.h> -#include <plat/ssp.h> static DEFINE_MUTEX(ssp_lock); static LIST_HEAD(ssp_list); |