From cf811a4eb2358d66f403cd1397b29829e1827220 Mon Sep 17 00:00:00 2001
From: Amaan Cheval <amaan.cheval@gmail.com>
Date: Mon, 9 Jul 2018 16:42:57 +0530
Subject: x86_64/console: Add NS16550 polled console driver

This addition allows us to successfully run the sample hello.exe test.

Updates #2898.
---
 cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h | 14 ++++++++++++++
 cpukit/score/cpu/x86_64/include/rtems/score/x86_64.h  |  3 +++
 2 files changed, 17 insertions(+)

(limited to 'cpukit/score/cpu/x86_64')

diff --git a/cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h
index bac092c320..67fe712a32 100644
--- a/cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h
@@ -28,6 +28,20 @@
 extern "C" {
 #endif
 
+static inline uint8_t inport_byte(uint16_t port)
+{
+  uint8_t ret;
+  __asm__ volatile ( "inb %1, %0"
+                     : "=a" (ret)
+                     : "Nd" (port) );
+  return ret;
+}
+
+static inline void outport_byte(uint16_t port, uint8_t val)
+{
+  __asm__ volatile ( "outb %0, %1" : : "a" (val), "Nd" (port) );
+}
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/cpukit/score/cpu/x86_64/include/rtems/score/x86_64.h b/cpukit/score/cpu/x86_64/include/rtems/score/x86_64.h
index 237d95de98..853e45ab5d 100644
--- a/cpukit/score/cpu/x86_64/include/rtems/score/x86_64.h
+++ b/cpukit/score/cpu/x86_64/include/rtems/score/x86_64.h
@@ -34,6 +34,9 @@ extern "C" {
 #define CPU_NAME "x86-64"
 #define CPU_MODEL_NAME "XXX: x86-64 generic"
 
+#define COM1_BASE_IO 0x3F8
+#define COM1_CLOCK_RATE (115200 * 16)
+
 #ifdef __cplusplus
 }
 #endif
-- 
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