[ARM] 5466/1: Freescale STMP platform support [5/10]

Shared (platform) headers

Signed-off-by: dmitry pervushin <dpervushin@embeddedalley.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/plat-stmp3xxx/include/mach/clkdev.h

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __ASM_MACH_CLKDEV_H
+#define __ASM_MACH_CLKDEV_H
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)
+
+#endif

arch/arm/plat-stmp3xxx/include/mach/cputype.h

@@ -0,0 +1,33 @@
+/*
+ * Freescale STMP37XX/STMP378X CPU type detection
+ *
+ * Embedded Alley Solutions, Inc <source@embeddedalley.com>
+ *
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __ASM_PLAT_CPU_H
+#define __ASM_PLAT_CPU_H
+
+#ifdef CONFIG_ARCH_STMP37XX
+#define cpu_is_stmp37xx()	(1)
+#else
+#define cpu_is_stmp37xx()	(0)
+#endif
+
+#ifdef CONFIG_ARCH_STMP378X
+#define cpu_is_stmp378x()	(1)
+#else
+#define cpu_is_stmp378x()	(0)
+#endif
+
+#endif /* __ASM_PLAT_CPU_H */

arch/arm/plat-stmp3xxx/include/mach/debug-macro.S

@@ -0,0 +1,42 @@
+/*
+ * Debugging macro include header
+ *
+ * Embedded Alley Solutions, Inc <source@embeddedalley.com>
+ *
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+		.macro	addruart,rx
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1			@ MMU enabled?
+		moveq	\rx, #0x80000000	@ physical base address
+		addeq	\rx, \rx, #0x00070000
+		movne	\rx, #0xf0000000	@ virtual base
+		addne	\rx, \rx, #0x00070000
+		.endm
+
+		.macro	senduart,rd,rx
+		strb	\rd, [\rx, #0]		@ data register at 0
+		.endm
+
+		.macro	waituart,rd,rx
+1001:		ldr	\rd, [\rx, #0x18]	@ UARTFLG
+		tst	\rd, #1 << 5		@ UARTFLGUTXFF - 1 when full
+		bne	1001b
+		.endm
+
+		.macro	busyuart,rd,rx
+1001:		ldr	\rd, [\rx, #0x18]	@ UARTFLG
+		tst	\rd, #1 << 3		@ UARTFLGUBUSY - 1 when busy
+		bne	1001b
+		.endm

arch/arm/plat-stmp3xxx/include/mach/dma.h

@@ -0,0 +1,155 @@
+/*
+ * Freescale STMP37XX/STMP378X DMA helper interface
+ *
+ * Embedded Alley Solutions, Inc <source@embeddedalley.com>
+ *
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __ASM_PLAT_STMP3XXX_DMA_H
+#define __ASM_PLAT_STMP3XXX_DMA_H
+
+#include <linux/platform_device.h>
+#include <linux/dmapool.h>
+
+#if !defined(MAX_PIO_WORDS)
+#define MAX_PIO_WORDS   (15)
+#endif
+
+#define STMP3XXX_BUS_APBH	0
+#define STMP3XXX_BUS_APBX	1
+#define STMP3XXX_DMA_MAX_CHANNEL	16
+
+
+#define STMP3xxx_DMA(channel, bus)  ((bus) * 16 + (channel))
+
+#define MAX_DMA_ADDRESS		0xffffffff
+
+#define MAX_DMA_CHANNELS	32
+
+struct stmp3xxx_dma_command {
+	u32 next;
+	u32 cmd;
+	union {
+		u32 buf_ptr;
+		u32 alternate;
+	};
+	u32 pio_words[MAX_PIO_WORDS];
+};
+
+struct stmp3xxx_dma_descriptor {
+	struct stmp3xxx_dma_command *command;
+	dma_addr_t handle;
+
+	/* The virtual address of the buffer pointer */
+	void *virtual_buf_ptr;
+	/* The next descriptor in a the DMA chain (optional) */
+	struct stmp3xxx_dma_descriptor *next_descr;
+};
+
+struct stmp37xx_circ_dma_chain {
+	unsigned total_count;
+	struct stmp3xxx_dma_descriptor *chain;
+
+	unsigned free_index;
+	unsigned free_count;
+	unsigned active_index;
+	unsigned active_count;
+	unsigned cooked_index;
+	unsigned cooked_count;
+
+	int bus;
+	unsigned channel;
+};
+
+static inline struct stmp3xxx_dma_descriptor
+    *stmp3xxx_dma_circ_get_free_head(struct stmp37xx_circ_dma_chain *chain)
+{
+	return &(chain->chain[chain->free_index]);
+}
+
+static inline struct stmp3xxx_dma_descriptor
+    *stmp3xxx_dma_circ_get_cooked_head(struct stmp37xx_circ_dma_chain *chain)
+{
+	return &(chain->chain[chain->cooked_index]);
+}
+
+int stmp3xxx_dma_request(int ch, struct device *dev, const char *name);
+int stmp3xxx_dma_release(int ch);
+int stmp3xxx_dma_allocate_command(int ch,
+				  struct stmp3xxx_dma_descriptor *descriptor);
+int stmp3xxx_dma_free_command(int ch,
+			      struct stmp3xxx_dma_descriptor *descriptor);
+void stmp3xxx_dma_continue(int channel, u32 semaphore);
+void stmp3xxx_dma_go(int ch, struct stmp3xxx_dma_descriptor *head,
+		     u32 semaphore);
+int stmp3xxx_dma_running(int ch);
+int stmp3xxx_dma_make_chain(int ch, struct stmp37xx_circ_dma_chain *chain,
+			    struct stmp3xxx_dma_descriptor descriptors[],
+			    unsigned items);
+void stmp3xxx_dma_free_chain(struct stmp37xx_circ_dma_chain *chain);
+void stmp37xx_circ_clear_chain(struct stmp37xx_circ_dma_chain *chain);
+void stmp37xx_circ_advance_free(struct stmp37xx_circ_dma_chain *chain,
+		unsigned count);
+void stmp37xx_circ_advance_active(struct stmp37xx_circ_dma_chain *chain,
+		unsigned count);
+unsigned stmp37xx_circ_advance_cooked(struct stmp37xx_circ_dma_chain *chain);
+int stmp3xxx_dma_read_semaphore(int ch);
+void stmp3xxx_dma_init(void);
+void stmp3xxx_dma_set_alt_target(int ch, int target);
+void stmp3xxx_dma_suspend(void);
+void stmp3xxx_dma_resume(void);
+
+/*
+ * STMP37xx and STMP378x have different DMA control
+ * registers layout
+ */
+
+void stmp3xxx_arch_dma_freeze(int ch);
+void stmp3xxx_arch_dma_unfreeze(int ch);
+void stmp3xxx_arch_dma_reset_channel(int ch);
+void stmp3xxx_arch_dma_enable_interrupt(int ch);
+void stmp3xxx_arch_dma_clear_interrupt(int ch);
+int stmp3xxx_arch_dma_is_interrupt(int ch);
+
+static inline void stmp3xxx_dma_reset_channel(int ch)
+{
+	stmp3xxx_arch_dma_reset_channel(ch);
+}
+
+
+static inline void stmp3xxx_dma_freeze(int ch)
+{
+	stmp3xxx_arch_dma_freeze(ch);
+}
+
+static inline void stmp3xxx_dma_unfreeze(int ch)
+{
+	stmp3xxx_arch_dma_unfreeze(ch);
+}
+
+static inline void stmp3xxx_dma_enable_interrupt(int ch)
+{
+	stmp3xxx_arch_dma_enable_interrupt(ch);
+}
+
+static inline void stmp3xxx_dma_clear_interrupt(int ch)
+{
+	stmp3xxx_arch_dma_clear_interrupt(ch);
+}
+
+static inline int stmp3xxx_dma_is_interrupt(int ch)
+{
+	return stmp3xxx_arch_dma_is_interrupt(ch);
+}
+
+#endif /* __ASM_PLAT_STMP3XXX_DMA_H */

arch/arm/plat-stmp3xxx/include/mach/gpio.h

@@ -0,0 +1,28 @@
+/*
+ * Freescale STMP37XX/STMP378X GPIO interface
+ *
+ * Embedded Alley Solutions, Inc <source@embeddedalley.com>
+ *
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __ASM_PLAT_GPIO_H
+#define __ASM_PLAT_GPIO_H
+
+#define ARCH_NR_GPIOS	(32 * 3)
+#define gpio_to_irq(gpio) __gpio_to_irq(gpio)
+#define gpio_get_value(gpio) __gpio_get_value(gpio)
+#define gpio_set_value(gpio, value) __gpio_set_value(gpio, value)
+
+#include <asm-generic/gpio.h>
+
+#endif /* __ASM_PLAT_GPIO_H */

arch/arm/plat-stmp3xxx/include/mach/hardware.h

@@ -0,0 +1,32 @@
+/*
+ * This file contains the hardware definitions of the Freescale STMP3XXX
+ *
+ * Copyright (C) 2005 Sigmatel Inc
+ *
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+/*
+ * Where in virtual memory the IO devices (timers, system controllers
+ * and so on)
+ */
+#define IO_BASE			0xF0000000                 /* VA of IO  */
+#define IO_SIZE			0x00100000                 /* How much? */
+#define IO_START		0x80000000                 /* PA of IO  */
+
+/* macro to get at IO space when running virtually */
+#define IO_ADDRESS(x) (((x) & 0x000fffff) | IO_BASE)
+
+#endif

arch/arm/plat-stmp3xxx/include/mach/io.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2005 Sigmatel Inc
+ *
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+#define __io(a) 	__typesafe_io(a)
+#define __mem_pci(a)	(a)
+#define __mem_isa(a)	(a)
+
+#endif

arch/arm/plat-stmp3xxx/include/mach/memory.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET	UL(0x40000000)
+
+#endif