Dear Renato Andreola,
In message 4A9259BF.3030200@imagos.it you wrote:
From eae7788c435cfab344c9741c9501475e9ab2797a Mon Sep 17 00:00:00 2001 From: Renato Andreola renato.andreola@imagos.it Date: Mon, 24 Aug 2009 11:10:44 +0200 Subject: [PATCH] Yanu Support for U-Boot
with this patch YANU uart (from opencores) support will be added to u-boot. Remember to modify properly your board files for defining physical address etc etc
cpu/nios2/serial.c | 170 +++++++++++++++++++++++++++++++++++++++++++++++++- include/nios2-yanu.h | 122 ++++++++++++++++++++++++++++++++++++ 2 files changed, 291 insertions(+), 1 deletions(-) create mode 100644 include/nios2-yanu.h
diff --git a/cpu/nios2/serial.c b/cpu/nios2/serial.c index 8bbb803..84be160 100644 --- a/cpu/nios2/serial.c +++ b/cpu/nios2/serial.c @@ -26,6 +26,7 @@ #include <watchdog.h> #include <asm/io.h> #include <nios2-io.h> +#include <nios2-yanu.h>
This patch is white-space corrupted. Please fix your mailer settings.
DECLARE_GLOBAL_DATA_PTR;
@@ -74,10 +75,177 @@ int serial_getc (void) return (c); }
+#elif defined(CONFIG_CONSOLE_YANU) +/*-----------------------------------------------------------------*/ +/* YANU Imagos serial port */ +/*-----------------------------------------------------------------*/
+static yanu_uart_t *uart = (yanu_uart_t *)CONFIG_SYS_NIOS_CONSOLE;
+#if defined(CONFIG_NIOS_FIXEDBAUD)
+/* Everything's already setup for fixed-baud PTF assignment*/
+void serial_setbrg (void) +{
- int n, k;
- const unsigned max_uns = 0xFFFFFFFF;
- unsigned best_n, best_m, baud;
- /* compute best N and M couple */
- best_n = YANU_MAX_PRESCALER_N;
- for (n = YANU_MAX_PRESCALER_N; n >= 0; n--)
- {
if ((unsigned)CONFIG_SYS_CLK_FREQ / (1 << (n+4)) >= (unsigned)CONFIG_BAUDRATE)
Incorrect brace style. Line too long.
{best_n = n;break;}- }
- for (k=0; ; k++)
- {
if ((unsigned)CONFIG_BAUDRATE <= (max_uns >> (15+n-k)))break;- }
Incorrect brace style.
- best_m = ((unsigned)CONFIG_BAUDRATE * (1 << (15+n-k))) / ((unsigned)CONFIG_SYS_CLK_FREQ >> k);
Line too long.
+void serial_setbrg (void) +{
- DECLARE_GLOBAL_DATA_PTR;
This must be done _outside_ any function body.
- /* compute best N and M couple */
- best_n = YANU_MAX_PRESCALER_N;
- for (n = YANU_MAX_PRESCALER_N; n >= 0; n--)
- {
Incorrect brace style.
if ((unsigned)CONFIG_SYS_CLK_FREQ / (1 << (n+4)) >= gd->baudrate){
Incorrect brace style. Line too long.
best_n = n;break;}- }
- for (k=0; ; k++)
- {
Incorrect brace style.
if (gd->baudrate <= (max_uns >> (15+n-k)))break;- }
- best_m = (gd->baudrate * (1 << (15+n-k))) / ((unsigned)CONFIG_SYS_CLK_FREQ >> k);
Line too long.
etc. etc.
+typedef volatile struct yanu_uart_t +{
- volatile unsigned data;
+/* control register (RW) 32-bit */
- volatile unsigned control;
+/* baud/prescaler register (RW) 32-bit */
- volatile unsigned baud;
+/* action register (W) 32-bit */
- volatile unsigned action;
+/* status register (R) 32-bit */
- volatile unsigned status;
+/* magic register (R) 32-bit */
- volatile unsigned magic;
+} yanu_uart_t;
Place comments on the same line with the declaration, please.
Please clean up and resubmit.
Best regards,
Wolfgang Denk