diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
commit | af7a535688a758d15f06a98833e6a143b29af9de (patch) | |
tree | bac5ab210bbbbe276f0e44ed84194d7c8bb16aae /arch/arm/mach-pxa/include/mach/ssp.h | |
parent | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (diff) | |
parent | c41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff) |
Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/ssp.h')
-rw-r--r-- | arch/arm/mach-pxa/include/mach/ssp.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/include/mach/ssp.h b/arch/arm/mach-pxa/include/mach/ssp.h new file mode 100644 index 00000000000..a012882c9ee --- /dev/null +++ b/arch/arm/mach-pxa/include/mach/ssp.h @@ -0,0 +1,83 @@ +/* + * 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> + +enum pxa_ssp_type { + SSP_UNDEFINED = 0, + PXA25x_SSP, /* pxa 210, 250, 255, 26x */ + PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */ + PXA27x_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; +}; + +/* + * SSP initialisation flags + */ +#define SSP_NO_IRQ 0x1 /* don't register an irq handler in SSP driver */ + +struct ssp_state { + u32 cr0; + u32 cr1; + u32 to; + u32 psp; +}; + +struct ssp_dev { + struct ssp_device *ssp; + u32 port; + u32 mode; + u32 flags; + u32 psp_flags; + u32 speed; + int irq; +}; + +int ssp_write_word(struct ssp_dev *dev, u32 data); +int ssp_read_word(struct ssp_dev *dev, u32 *data); +int ssp_flush(struct ssp_dev *dev); +void ssp_enable(struct ssp_dev *dev); +void ssp_disable(struct ssp_dev *dev); +void ssp_save_state(struct ssp_dev *dev, struct ssp_state *ssp); +void ssp_restore_state(struct ssp_dev *dev, struct ssp_state *ssp); +int ssp_init(struct ssp_dev *dev, u32 port, u32 init_flags); +int ssp_config(struct ssp_dev *dev, u32 mode, u32 flags, u32 psp_flags, u32 speed); +void ssp_exit(struct ssp_dev *dev); + +struct ssp_device *ssp_request(int port, const char *label); +void ssp_free(struct ssp_device *); +#endif /* __ASM_ARCH_SSP_H */ |