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 000000000000..a012882c9ee6
--- /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 */