[PATCH 2/4] MIPS: lantiq: adds Amazon SE serial port platform device

[John Crispin <blogic@openwrt.org>]

Amazon SE only has 1 serial port. We use a seperate function to register the
platform device as the IRQ mappings also differ.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
---
 .../mips/include/asm/mach-lantiq/xway/lantiq_irq.h |    4 +++
 arch/mips/lantiq/xway/devices.c                    |   21 ++++++++++++++++++++
 arch/mips/lantiq/xway/devices.h                    |    1 +
 3 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h 
b/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h
index 5c81c98..b4465a8 100644
--- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h
+++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h
@@ -21,6 +21,10 @@
 #define LTQ_ASC_RIR(x)         (INT_NUM_IM3_IRL0 + (x * 8) + 1)
 #define LTQ_ASC_EIR(x)         (INT_NUM_IM3_IRL0 + (x * 8) + 2)
 
+#define LTQ_ASC_ASE_TIR                INT_NUM_IM2_IRL0
+#define LTQ_ASC_ASE_RIR                (INT_NUM_IM2_IRL0 + 2)
+#define LTQ_ASC_ASE_EIR                (INT_NUM_IM2_IRL0 + 3)
+
 #define LTQ_SSC_TIR            (INT_NUM_IM0_IRL0 + 15)
 #define LTQ_SSC_RIR            (INT_NUM_IM0_IRL0 + 14)
 #define LTQ_SSC_EIR            (INT_NUM_IM0_IRL0 + 16)
diff --git a/arch/mips/lantiq/xway/devices.c b/arch/mips/lantiq/xway/devices.c
index c257026..2fd1733 100644
--- a/arch/mips/lantiq/xway/devices.c
+++ b/arch/mips/lantiq/xway/devices.c
@@ -29,6 +29,8 @@
 #include <lantiq_irq.h>
 #include <lantiq_platform.h>
 
+#include "devices.h"
+
 /* gpio */
 static struct resource ltq_gpio_resource[] = {
        {
@@ -98,3 +100,22 @@ ltq_register_etop(struct ltq_eth_data *eth)
                platform_device_register(&ltq_etop);
        }
 }
+
+/* asc ports - amazon se has its own serial mapping */
+static struct resource ltq_ase_asc_resources[] = {
+       {
+               .name   = "asc0",
+               .start  = LTQ_ASC1_BASE_ADDR,
+               .end    = LTQ_ASC1_BASE_ADDR + LTQ_ASC_SIZE - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       IRQ_RES(tx, LTQ_ASC_ASE_TIR),
+       IRQ_RES(rx, LTQ_ASC_ASE_RIR),
+       IRQ_RES(err, LTQ_ASC_ASE_EIR),
+};
+
+void __init ltq_register_ase_asc(void)
+{
+       platform_device_register_simple("ltq_asc", 0,
+               ltq_ase_asc_resources, ARRAY_SIZE(ltq_ase_asc_resources));
+}
diff --git a/arch/mips/lantiq/xway/devices.h b/arch/mips/lantiq/xway/devices.h
index 2deb68e..e904934 100644
--- a/arch/mips/lantiq/xway/devices.h
+++ b/arch/mips/lantiq/xway/devices.h
@@ -14,6 +14,7 @@
 
 extern void ltq_register_gpio(void);
 extern void ltq_register_gpio_stp(void);
+extern void ltq_register_ase_asc(void);
 extern void ltq_register_etop(struct ltq_eth_data *eth);
 
 #endif
-- 
1.7.2.3