From: Kees Jongenburger <kees.jongenburger@gmail.com>
Date: Wed, 22 May 2013 14:40:45 +0000 (+0200)
Subject: arm:kernel simplify the in kernel serial.
X-Git-Tag: v3.3.0~970
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/zlib_tech.html?a=commitdiff_plain;h=refs%2Fchanges%2F81%2F581%2F3;p=minix.git

arm:kernel simplify the in kernel serial.

Simplify the in kernel serial header to a minimum. The driver doing
the real handling is the tty driver.

Change-Id: I5d487d71a3d22906313aa8af5e9d84b0751a6868
---

diff --git a/kernel/arch/earm/omap_serial.c b/kernel/arch/earm/omap_serial.c
index 5a598c796..4f82ac9c6 100644
--- a/kernel/arch/earm/omap_serial.c
+++ b/kernel/arch/earm/omap_serial.c
@@ -9,14 +9,14 @@ void omap3_ser_putc(char c)
 
     /* Wait until FIFO's empty */
     for (i = 0; i < 100000; i++)
-	if (mmio_read(OMAP3_UART3_LSR) & OMAP3_LSR_THRE)
+	if (mmio_read(OMAP3_DEBUG_UART_LSR) & OMAP3_LSR_THRE)
 	    break;
 
     /* Write character */
-    mmio_write(OMAP3_UART3_THR, c);
+    mmio_write(OMAP3_DEBUG_UART_THR, c);
 
     /* And wait again until FIFO's empty to prevent TTY from overwriting */
     for (i = 0; i < 100000; i++)
-	if (mmio_read(OMAP3_UART3_LSR) & (OMAP3_LSR_THRE | OMAP3_LSR_TEMT))
+	if (mmio_read(OMAP3_DEBUG_UART_LSR) & (OMAP3_LSR_THRE | OMAP3_LSR_TEMT))
 	    break;
 }
diff --git a/kernel/arch/earm/omap_serial.h b/kernel/arch/earm/omap_serial.h
index f3b0626ef..3cb8a344e 100644
--- a/kernel/arch/earm/omap_serial.h
+++ b/kernel/arch/earm/omap_serial.h
@@ -2,9 +2,7 @@
 #define _OMAP_SERIAL_H
 
 /* UART register map */
-#define OMAP3_UART1_BASE 0x4806A000 /* UART1 physical address */
-#define OMAP3_UART2_BASE 0x4806C000 /* UART2 physical address */
-#define OMAP3_UART3_BASE 0x49020000 /* UART3 physical address */
+#define OMAP3_DEBUG_UART_BASE 0x49020000 /* UART3 physical address */
 
 /* UART registers */
 #define OMAP3_THR 0x000 /* Transmit holding register */
@@ -18,9 +16,9 @@
 /* Supplementary status register fields */
 #define OMAP3_SSR_TX_FIFO_FULL (1 << 0) /* Transmit FIFO full */
 
-#define OMAP3_UART3_THR (OMAP3_UART3_BASE + OMAP3_THR)
-#define OMAP3_UART3_LSR (OMAP3_UART3_BASE + OMAP3_LSR)
-#define OMAP3_UART3_SSR (OMAP3_UART3_BASE + OMAP3_SSR)
+#define OMAP3_DEBUG_UART_THR (OMAP3_DEBUG_UART_BASE + OMAP3_THR)
+#define OMAP3_DEBUG_UART_LSR (OMAP3_DEBUG_UART_BASE + OMAP3_LSR)
+#define OMAP3_DEBUG_UART_SSR (OMAP3_DEBUG_UART_BASE + OMAP3_SSR)
 
 #ifndef __ASSEMBLY__