[ARM] 3850/1: iop3xx: add thecus n2100 support

Add support for the Thecus n2100 (80219-based.)

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

3 files changed, 31 insertions, 0 deletions

diff --git a/include/asm-arm/arch-iop32x/hardware.h b/include/asm-arm/arch-iop32x/hardware.h
index 6a3001f2f7e0..c6f58b91ddbc 100644
--- a/include/asm-arm/arch-iop32x/hardware.h
+++ b/include/asm-arm/arch-iop32x/hardware.h
@@ -37,6 +37,7 @@ void iop32x_init_irq(void);
  */
 #include "iq80321.h"
 #include "iq31244.h"
+#include "n2100.h"
 
 
 #endif
diff --git a/include/asm-arm/arch-iop32x/n2100.h b/include/asm-arm/arch-iop32x/n2100.h
new file mode 100644
index 000000000000..fed31a648425
--- /dev/null
+++ b/include/asm-arm/arch-iop32x/n2100.h
@@ -0,0 +1,19 @@
+/*
+ * include/asm/arch-iop32x/n2100.h
+ *
+ * Thecus N2100 board registers
+ */
+
+#ifndef __N2100_H
+#define __N2100_H
+
+#define N2100_UART              0xfe800000      /* UART */
+
+#define N2100_COPY_BUTTON       IOP3XX_GPIO_LINE(0)
+#define N2100_PCA9532_RESET     IOP3XX_GPIO_LINE(2)
+#define N2100_RESET_BUTTON      IOP3XX_GPIO_LINE(3)
+#define N2100_HARDWARE_RESET    IOP3XX_GPIO_LINE(4)
+#define N2100_POWER_BUTTON      IOP3XX_GPIO_LINE(5)
+
+
+#endif
diff --git a/include/asm-arm/arch-iop32x/system.h b/include/asm-arm/arch-iop32x/system.h
index c65ede3e627a..17b7eb7e9c0d 100644
--- a/include/asm-arm/arch-iop32x/system.h
+++ b/include/asm-arm/arch-iop32x/system.h
@@ -8,6 +8,8 @@
  * published by the Free Software Foundation.
  */
 
+#include <asm/mach-types.h>
+
 static inline void arch_idle(void)
 {
         cpu_do_idle();
@@ -15,6 +17,15 @@ static inline void arch_idle(void)
 
 static inline void arch_reset(char mode)
 {
+        local_irq_disable();
+
+        if (machine_is_n2100()) {
+                gpio_line_set(N2100_HARDWARE_RESET, GPIO_LOW);
+                gpio_line_config(N2100_HARDWARE_RESET, GPIO_OUT);
+                while (1)
+                        ;
+        }
+
         *IOP3XX_PCSR = 0x30;
 
         /* Jump into ROM at address 0 */