zeta-v2: fix comments

diff --git a/Kernel/platform-zeta-v2/devtty.h b/Kernel/platform-zeta-v2/devtty.h
index db70d87..69f8d78 100644 (file)
--- a/Kernel/platform-zeta-v2/devtty.h
+++ b/Kernel/platform-zeta-v2/devtty.h
@@ -2,12 +2,12 @@
 #define __DEVTTY_DOT_H__
 
 #define UART_NAME 0x0F
-#define UART_CAP_FIFO 0x80             /* UART has functioning FIFO */
-#define UART_CAP_AFE 0x40              /* UART support autoflow control */
-#define UART_8250 1
-#define UART_16450 2
-#define UART_16550 3
-#define UART_16550A 4
+#define UART_CAP_FIFO 0x80             /* UART has a functioning FIFO */
+#define UART_CAP_AFE 0x40              /* UART supports auto-flow control */
+#define UART_8250 1                    /* original INS8250 or INS8250-B */ 
+#define UART_16450 2                   /* INS8250A, 16450 and clones */
+#define UART_16550 3                   /* original 16550 with broken FIFO */
+#define UART_16550A 4                  /* 16550A and clones */
 
 #define UART_CLOCK 1843200UL
 void tty_putc(uint8_t minor, unsigned char c);

diff --git a/Kernel/platform-zeta-v2/devtty_discard.c b/Kernel/platform-zeta-v2/devtty_discard.c
index 6fea156..782f115 100644 (file)
--- a/Kernel/platform-zeta-v2/devtty_discard.c
+++ b/Kernel/platform-zeta-v2/devtty_discard.c
@@ -10,7 +10,7 @@ extern unsigned char uart0_type;
 
 unsigned char uart0_detect();
 
-/* uart0_init - detect UART type, enable FIFO if present
+/* uart0_init - detect UART type, print it, enable FIFO if present
  */
 void uart0_init() {
        const char *uart_name;
@@ -46,6 +46,8 @@ void uart0_init() {
        kprintf(".\n");
 }
 
+/* uart0_init - detect UART type and capabilities
+ */
 unsigned char uart0_detect() {
        unsigned char type, scratch;