[ARM] 3369/1: ep93xx: add core cirrus ep93xx support

Patch from Lennert Buytenhek

This patch adds support for the Cirrus ep93xx series of CPUs.  The
ep93xx is an ARM920T based CPU with two VICs, PL010 based UARTs,
IrDA, MaverickCrunch floating point coprocessor, between 24 and 64
GPIOs, ethernet, OHCI USB and, depending on the model, pcmcia, raster
engine, graphics accelerator, IDE controller and a bunch of other
stuff.

This patch adds the core ep93xx support code, and support for the
Glomation GESBC-9312-sx and the Technologic Systems TS-72xx SBCs.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 90 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ep93xx/ts72xx.h b/include/asm-arm/arch-ep93xx/ts72xx.h
new file mode 100644
index 0000000000000..412215e77f444
--- /dev/null
+++ b/include/asm-arm/arch-ep93xx/ts72xx.h
@@ -0,0 +1,90 @@
+/*
+ * linux/include/asm-arm/arch-ep93xx/ts72xx.h
+ */
+
+/*
+ * TS72xx memory map:
+ *
+ * virt		phys		size
+ * febff000	22000000	4K	model number register
+ * febfe000	22400000	4K	options register
+ * febfd000	22800000	4K	options register #2
+ * febfc000	[67]0000000	4K	NAND data register
+ * febfb000	[67]0400000	4K	NAND control register
+ * febfa000	[67]0800000	4K	NAND busy register
+ */
+
+#define TS72XX_MODEL_PHYS_BASE		0x22000000
+#define TS72XX_MODEL_VIRT_BASE		0xfebff000
+#define TS72XX_MODEL_SIZE		0x00001000
+
+#define TS72XX_MODEL_TS7200		0x00
+#define TS72XX_MODEL_TS7250		0x01
+#define TS72XX_MODEL_TS7260		0x02
+
+
+#define TS72XX_OPTIONS_PHYS_BASE	0x22400000
+#define TS72XX_OPTIONS_VIRT_BASE	0xfebfe000
+#define TS72XX_OPTIONS_SIZE		0x00001000
+
+#define TS72XX_OPTIONS_COM2_RS485	0x02
+#define TS72XX_OPTIONS_MAX197		0x01
+
+
+#define TS72XX_OPTIONS2_PHYS_BASE	0x22800000
+#define TS72XX_OPTIONS2_VIRT_BASE	0xfebfd000
+#define TS72XX_OPTIONS2_SIZE		0x00001000
+
+#define TS72XX_OPTIONS2_TS9420		0x04
+#define TS72XX_OPTIONS2_TS9420_BOOT	0x02
+
+
+#define TS72XX_NOR_PHYS_BASE		0x60000000
+#define TS72XX_NOR2_PHYS_BASE		0x62000000
+
+#define TS72XX_NAND1_DATA_PHYS_BASE	0x60000000
+#define TS72XX_NAND2_DATA_PHYS_BASE	0x70000000
+#define TS72XX_NAND_DATA_VIRT_BASE	0xfebfc000
+#define TS72XX_NAND_DATA_SIZE		0x00001000
+
+#define TS72XX_NAND1_CONTROL_PHYS_BASE	0x60400000
+#define TS72XX_NAND2_CONTROL_PHYS_BASE	0x70400000
+#define TS72XX_NAND_CONTROL_VIRT_BASE	0xfebfb000
+#define TS72XX_NAND_CONTROL_SIZE	0x00001000
+
+#define TS72XX_NAND1_BUSY_PHYS_BASE	0x60800000
+#define TS72XX_NAND2_BUSY_PHYS_BASE	0x70800000
+#define TS72XX_NAND_BUSY_VIRT_BASE	0xfebfa000
+#define TS72XX_NAND_BUSY_SIZE		0x00001000
+
+
+#ifndef __ASSEMBLY__
+#include <asm/io.h>
+
+static inline int board_is_ts7200(void)
+{
+	return __raw_readb(TS72XX_MODEL_VIRT_BASE) == TS72XX_MODEL_TS7200;
+}
+
+static inline int board_is_ts7250(void)
+{
+	return __raw_readb(TS72XX_MODEL_VIRT_BASE) == TS72XX_MODEL_TS7250;
+}
+
+static inline int board_is_ts7260(void)
+{
+	return __raw_readb(TS72XX_MODEL_VIRT_BASE) == TS72XX_MODEL_TS7260;
+}
+
+static inline int is_max197_installed(void)
+{
+	return !!(__raw_readb(TS72XX_OPTIONS_VIRT_BASE) &
+					TS72XX_OPTIONS_MAX197);
+}
+
+static inline int is_ts9420_installed(void)
+{
+	return !!(__raw_readb(TS72XX_OPTIONS2_VIRT_BASE) &
+					TS72XX_OPTIONS2_TS9420);
+}
+#endif