diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-08 02:08:46 +0100 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-08 02:08:46 +0100 |
commit | 021db8e2bde53024a163fb4417a185de46fe77aa (patch) | |
tree | 098a28bd2414ea2622493a1736a677dab5085dfc /arch | |
parent | Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj... (diff) | |
parent | spi/omap: Fix DMA API usage in OMAP MCSPI driver (diff) | |
download | linux-021db8e2bde53024a163fb4417a185de46fe77aa.tar.xz linux-021db8e2bde53024a163fb4417a185de46fe77aa.zip |
Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: (77 commits)
spi/omap: Fix DMA API usage in OMAP MCSPI driver
spi/imx: correct the test on platform_get_irq() return value
spi/topcliff: Typo fix threhold to threshold
spi/dw_spi Typo change diable to disable.
spi/fsl_espi: change the read behaviour of the SPIRF
spi/mpc52xx-psc-spi: move probe/remove to proper sections
spi/dw_spi: add DMA support
spi/dw_spi: change to EXPORT_SYMBOL_GPL for exported APIs
spi/dw_spi: Fix too short timeout in spi polling loop
spi/pl022: convert running variable
spi/pl022: convert busy flag to a bool
spi/pl022: pass the returned sglen to the DMA engine
spi/pl022: map the buffers on the DMA engine
spi/topcliff_pch: Fix data transfer issue
spi/imx: remove autodetection
spi/pxa2xx: pass of_node to spi device and set a parent device
spi/pxa2xx: Modify RX-Tresh instead of busy-loop for the remaining RX bytes.
spi/pxa2xx: Add chipselect support for Sodaville
spi/pxa2xx: Consider CE4100's FIFO depth
spi/pxa2xx: Add CE4100 support
...
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-davinci/dm355.c | 7 | ||||
-rw-r--r-- | arch/arm/mach-davinci/dm365.c | 6 | ||||
-rw-r--r-- | arch/arm/mach-davinci/include/mach/spi.h | 52 | ||||
-rw-r--r-- | arch/arm/mach-pxa/cm-x255.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/cm-x270.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/corgi.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/devices.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/em-x270.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/hx4700.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/icontrol.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/include/mach/pxa2xx_spi.h | 47 | ||||
-rw-r--r-- | arch/arm/mach-pxa/littleton.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/lubbock.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/pcm027.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/poodle.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/spitz.c | 3 | ||||
-rw-r--r-- | arch/arm/mach-pxa/stargate2.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/tosa.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/trizeps4.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-pxa/z2.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/zeus.c | 2 | ||||
-rw-r--r-- | arch/arm/plat-pxa/include/plat/ssp.h | 186 | ||||
-rw-r--r-- | arch/arm/plat-pxa/ssp.c | 2 |
23 files changed, 64 insertions, 270 deletions
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index 2652af124acd..a5f8a80c1f28 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -412,12 +412,7 @@ static struct resource dm355_spi0_resources[] = { static struct davinci_spi_platform_data dm355_spi0_pdata = { .version = SPI_VERSION_1, .num_chipselect = 2, - .clk_internal = 1, - .cs_hold = 1, - .intr_level = 0, - .poll_mode = 1, /* 0 -> interrupt mode 1-> polling mode */ - .c2tdelay = 0, - .t2cdelay = 0, + .cshold_bug = true, }; static struct platform_device dm355_spi0_device = { .name = "spi_davinci", diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index c466d710d3c1..02d2cc380df7 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -625,12 +625,6 @@ static u64 dm365_spi0_dma_mask = DMA_BIT_MASK(32); static struct davinci_spi_platform_data dm365_spi0_pdata = { .version = SPI_VERSION_1, .num_chipselect = 2, - .clk_internal = 1, - .cs_hold = 1, - .intr_level = 0, - .poll_mode = 1, /* 0 -> interrupt mode 1-> polling mode */ - .c2tdelay = 0, - .t2cdelay = 0, }; static struct resource dm365_spi0_resources[] = { diff --git a/arch/arm/mach-davinci/include/mach/spi.h b/arch/arm/mach-davinci/include/mach/spi.h index 910efbf099c0..38f4da5ca135 100644 --- a/arch/arm/mach-davinci/include/mach/spi.h +++ b/arch/arm/mach-davinci/include/mach/spi.h @@ -19,26 +19,66 @@ #ifndef __ARCH_ARM_DAVINCI_SPI_H #define __ARCH_ARM_DAVINCI_SPI_H +#define SPI_INTERN_CS 0xFF + enum { SPI_VERSION_1, /* For DM355/DM365/DM6467 */ SPI_VERSION_2, /* For DA8xx */ }; +/** + * davinci_spi_platform_data - Platform data for SPI master device on DaVinci + * + * @version: version of the SPI IP. Different DaVinci devices have slightly + * varying versions of the same IP. + * @num_chipselect: number of chipselects supported by this SPI master + * @intr_line: interrupt line used to connect the SPI IP to the ARM interrupt + * controller withn the SoC. Possible values are 0 and 1. + * @chip_sel: list of GPIOs which can act as chip-selects for the SPI. + * SPI_INTERN_CS denotes internal SPI chip-select. Not necessary + * to populate if all chip-selects are internal. + * @cshold_bug: set this to true if the SPI controller on your chip requires + * a write to CSHOLD bit in between transfers (like in DM355). + */ struct davinci_spi_platform_data { u8 version; u8 num_chipselect; + u8 intr_line; + u8 *chip_sel; + bool cshold_bug; +}; + +/** + * davinci_spi_config - Per-chip-select configuration for SPI slave devices + * + * @wdelay: amount of delay between transmissions. Measured in number of + * SPI module clocks. + * @odd_parity: polarity of parity flag at the end of transmit data stream. + * 0 - odd parity, 1 - even parity. + * @parity_enable: enable transmission of parity at end of each transmit + * data stream. + * @io_type: type of IO transfer. Choose between polled, interrupt and DMA. + * @timer_disable: disable chip-select timers (setup and hold) + * @c2tdelay: chip-select setup time. Measured in number of SPI module clocks. + * @t2cdelay: chip-select hold time. Measured in number of SPI module clocks. + * @t2edelay: transmit data finished to SPI ENAn pin inactive time. Measured + * in number of SPI clocks. + * @c2edelay: chip-select active to SPI ENAn signal active time. Measured in + * number of SPI clocks. + */ +struct davinci_spi_config { u8 wdelay; u8 odd_parity; u8 parity_enable; - u8 wait_enable; +#define SPI_IO_TYPE_INTR 0 +#define SPI_IO_TYPE_POLL 1 +#define SPI_IO_TYPE_DMA 2 + u8 io_type; u8 timer_disable; - u8 clk_internal; - u8 cs_hold; - u8 intr_level; - u8 poll_mode; - u8 use_dma; u8 c2tdelay; u8 t2cdelay; + u8 t2edelay; + u8 c2edelay; }; #endif /* __ARCH_ARM_DAVINCI_SPI_H */ diff --git a/arch/arm/mach-pxa/cm-x255.c b/arch/arm/mach-pxa/cm-x255.c index f1a7703d771b..93f59f877fc6 100644 --- a/arch/arm/mach-pxa/cm-x255.c +++ b/arch/arm/mach-pxa/cm-x255.c @@ -17,13 +17,13 @@ #include <linux/mtd/nand-gpio.h> #include <linux/spi/spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <asm/mach/arch.h> #include <asm/mach-types.h> #include <asm/mach/map.h> #include <mach/pxa25x.h> -#include <mach/pxa2xx_spi.h> #include "generic.h" diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c index a9926bb75922..b88d601a8090 100644 --- a/arch/arm/mach-pxa/cm-x270.c +++ b/arch/arm/mach-pxa/cm-x270.c @@ -19,12 +19,12 @@ #include <video/mbxfb.h> #include <linux/spi/spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/spi/libertas_spi.h> #include <mach/pxa27x.h> #include <mach/ohci.h> #include <mach/mmc.h> -#include <mach/pxa2xx_spi.h> #include "generic.h" diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c index 9f3e5af0a0db..a5452a3a276d 100644 --- a/arch/arm/mach-pxa/corgi.c +++ b/arch/arm/mach-pxa/corgi.c @@ -28,6 +28,7 @@ #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> #include <linux/spi/corgi_lcd.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/mtd/sharpsl.h> #include <linux/input/matrix_keypad.h> #include <video/w100fb.h> @@ -48,7 +49,6 @@ #include <mach/irda.h> #include <mach/mmc.h> #include <mach/udc.h> -#include <mach/pxa2xx_spi.h> #include <mach/corgi.h> #include <mach/sharpsl_pm.h> diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c index 022c2fa4af04..4c766e3b4af3 100644 --- a/arch/arm/mach-pxa/devices.c +++ b/arch/arm/mach-pxa/devices.c @@ -3,6 +3,7 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> +#include <linux/spi/pxa2xx_spi.h> #include <asm/pmu.h> #include <mach/udc.h> @@ -12,7 +13,6 @@ #include <mach/irda.h> #include <mach/ohci.h> #include <plat/pxa27x_keypad.h> -#include <mach/pxa2xx_spi.h> #include <mach/camera.h> #include <mach/audio.h> #include <mach/hardware.h> diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c index 4cefd1d18afd..a78bb3097739 100644 --- a/arch/arm/mach-pxa/em-x270.c +++ b/arch/arm/mach-pxa/em-x270.c @@ -26,6 +26,7 @@ #include <linux/spi/spi.h> #include <linux/spi/tdo24m.h> #include <linux/spi/libertas_spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/power_supply.h> #include <linux/apm-emulation.h> #include <linux/i2c.h> @@ -46,7 +47,6 @@ #include <plat/pxa27x_keypad.h> #include <plat/i2c.h> #include <mach/camera.h> -#include <mach/pxa2xx_spi.h> #include "generic.h" #include "devices.h" diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c index cacb21b7014d..a908e0a5f396 100644 --- a/arch/arm/mach-pxa/hx4700.c +++ b/arch/arm/mach-pxa/hx4700.c @@ -33,6 +33,7 @@ #include <linux/regulator/max1586.h> #include <linux/spi/ads7846.h> #include <linux/spi/spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/usb/gpio_vbus.h> #include <mach/hardware.h> @@ -43,7 +44,6 @@ #include <mach/hx4700.h> #include <plat/i2c.h> #include <mach/irda.h> -#include <mach/pxa2xx_spi.h> #include <video/platform_lcd.h> #include <video/w100fb.h> diff --git a/arch/arm/mach-pxa/icontrol.c b/arch/arm/mach-pxa/icontrol.c index ac6ee12e400e..6cedc81da3bc 100644 --- a/arch/arm/mach-pxa/icontrol.c +++ b/arch/arm/mach-pxa/icontrol.c @@ -24,7 +24,7 @@ #include <mach/mxm8x10.h> #include <linux/spi/spi.h> -#include <mach/pxa2xx_spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/can/platform/mcp251x.h> #include "generic.h" diff --git a/arch/arm/mach-pxa/include/mach/pxa2xx_spi.h b/arch/arm/mach-pxa/include/mach/pxa2xx_spi.h deleted file mode 100644 index b87cecd9bbdc..000000000000 --- a/arch/arm/mach-pxa/include/mach/pxa2xx_spi.h +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef PXA2XX_SPI_H_ -#define PXA2XX_SPI_H_ - -#define PXA2XX_CS_ASSERT (0x01) -#define PXA2XX_CS_DEASSERT (0x02) - -/* device.platform_data for SSP controller devices */ -struct pxa2xx_spi_master { - u32 clock_enable; - u16 num_chipselect; - u8 enable_dma; -}; - -/* spi_board_info.controller_data for SPI slave devices, - * copied to spi_device.platform_data ... mostly for dma tuning - */ -struct pxa2xx_spi_chip { - u8 tx_threshold; - u8 rx_threshold; - u8 dma_burst_size; - u32 timeout; - u8 enable_loopback; - int gpio_cs; - void (*cs_control)(u32 command); -}; - -extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info); - -#endif /*PXA2XX_SPI_H_*/ diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c index 719c260597e7..ccb7bfad17ca 100644 --- a/arch/arm/mach-pxa/littleton.c +++ b/arch/arm/mach-pxa/littleton.c @@ -22,6 +22,7 @@ #include <linux/clk.h> #include <linux/gpio.h> #include <linux/spi/spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/smc91x.h> #include <linux/i2c.h> #include <linux/leds.h> @@ -42,7 +43,6 @@ #include <mach/pxa300.h> #include <mach/pxafb.h> #include <mach/mmc.h> -#include <mach/pxa2xx_spi.h> #include <plat/pxa27x_keypad.h> #include <mach/littleton.h> #include <plat/i2c.h> diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index d3375486c8cd..3072dbea5c1f 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -25,7 +25,7 @@ #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> -#include <mach/pxa2xx_spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <asm/setup.h> #include <asm/memory.h> diff --git a/arch/arm/mach-pxa/pcm027.c b/arch/arm/mach-pxa/pcm027.c index 8547c9abc40a..1fc8a66407ae 100644 --- a/arch/arm/mach-pxa/pcm027.c +++ b/arch/arm/mach-pxa/pcm027.c @@ -25,12 +25,12 @@ #include <linux/mtd/physmap.h> #include <linux/spi/spi.h> #include <linux/spi/max7301.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/leds.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <mach/pxa27x.h> -#include <mach/pxa2xx_spi.h> #include <mach/pcm027.h> #include "generic.h" diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c index 8451790cb48d..4f0ff1ab623d 100644 --- a/arch/arm/mach-pxa/poodle.c +++ b/arch/arm/mach-pxa/poodle.c @@ -25,6 +25,7 @@ #include <linux/i2c.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/mtd/sharpsl.h> #include <mach/hardware.h> @@ -43,7 +44,6 @@ #include <mach/irda.h> #include <mach/poodle.h> #include <mach/pxafb.h> -#include <mach/pxa2xx_spi.h> #include <plat/i2c.h> #include <asm/hardware/scoop.h> diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 0499a69e7673..0bc938729c4c 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -23,7 +23,7 @@ #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> #include <linux/spi/corgi_lcd.h> -#include <linux/mtd/physmap.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/mtd/sharpsl.h> #include <linux/input/matrix_keypad.h> #include <linux/regulator/machine.h> @@ -42,7 +42,6 @@ #include <mach/mmc.h> #include <mach/ohci.h> #include <mach/pxafb.h> -#include <mach/pxa2xx_spi.h> #include <mach/spitz.h> #include <mach/sharpsl_pm.h> #include <mach/smemc.h> diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c index 3498a1423943..9a14fdb83c82 100644 --- a/arch/arm/mach-pxa/stargate2.c +++ b/arch/arm/mach-pxa/stargate2.c @@ -46,11 +46,11 @@ #include <plat/i2c.h> #include <mach/mmc.h> #include <mach/udc.h> -#include <mach/pxa2xx_spi.h> #include <mach/pxa27x-udc.h> #include <mach/smemc.h> #include <linux/spi/spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/mfd/da903x.h> #include <linux/sht15.h> diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c index 57d61ee9b226..af152e70cfcf 100644 --- a/arch/arm/mach-pxa/tosa.c +++ b/arch/arm/mach-pxa/tosa.c @@ -32,6 +32,7 @@ #include <linux/gpio.h> #include <linux/pda_power.h> #include <linux/spi/spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/input/matrix_keypad.h> #include <asm/setup.h> @@ -44,7 +45,6 @@ #include <mach/mmc.h> #include <mach/udc.h> #include <mach/tosa_bt.h> -#include <mach/pxa2xx_spi.h> #include <mach/audio.h> #include <mach/smemc.h> diff --git a/arch/arm/mach-pxa/trizeps4.c b/arch/arm/mach-pxa/trizeps4.c index 43fc9ca14594..423261d63d07 100644 --- a/arch/arm/mach-pxa/trizeps4.c +++ b/arch/arm/mach-pxa/trizeps4.c @@ -40,7 +40,6 @@ #include <asm/mach/flash.h> #include <mach/pxa27x.h> -#include <mach/pxa2xx_spi.h> #include <mach/trizeps4.h> #include <mach/audio.h> #include <mach/pxafb.h> diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c index 527c2a1ed310..a323e076129e 100644 --- a/arch/arm/mach-pxa/z2.c +++ b/arch/arm/mach-pxa/z2.c @@ -20,6 +20,7 @@ #include <linux/z2_battery.h> #include <linux/dma-mapping.h> #include <linux/spi/spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/spi/libertas_spi.h> #include <linux/spi/lms283gf05.h> #include <linux/power_supply.h> @@ -38,7 +39,6 @@ #include <mach/pxafb.h> #include <mach/mmc.h> #include <plat/pxa27x_keypad.h> -#include <mach/pxa2xx_spi.h> #include <plat/i2c.h> diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c index c87f2b35ee05..bf034c7670dd 100644 --- a/arch/arm/mach-pxa/zeus.c +++ b/arch/arm/mach-pxa/zeus.c @@ -20,6 +20,7 @@ #include <linux/dm9000.h> #include <linux/mmc/host.h> #include <linux/spi/spi.h> +#include <linux/spi/pxa2xx_spi.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/mtd/physmap.h> @@ -41,7 +42,6 @@ #include <mach/pxa27x-udc.h> #include <mach/udc.h> #include <mach/pxafb.h> -#include <mach/pxa2xx_spi.h> #include <mach/mfp-pxa27x.h> #include <mach/pm.h> #include <mach/audio.h> 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); |