[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 000000000000..412215e77f44
--- /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