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Diffstat (limited to 'bsps/riscv/griscv/console/printk_support.c')
-rw-r--r--bsps/riscv/griscv/console/printk_support.c48
1 files changed, 38 insertions, 10 deletions
diff --git a/bsps/riscv/griscv/console/printk_support.c b/bsps/riscv/griscv/console/printk_support.c
index f232203520..f3af16be4d 100644
--- a/bsps/riscv/griscv/console/printk_support.c
+++ b/bsps/riscv/griscv/console/printk_support.c
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
/*
* This file contains the TTY driver for the GRLIb APBUART
*
@@ -10,9 +12,26 @@
* COPYRIGHT (c) 2011.
* Aeroflex Gaisler.
*
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
*/
#include <bsp.h>
@@ -24,9 +43,10 @@
#include <stdio.h>
#include <grlib/apbuart.h>
#include <grlib/ambapp.h>
+#include <grlib/io.h>
int grlib_debug_uart_index __attribute__((weak)) = 0;
-struct apbuart_regs *grlib_debug_uart = NULL;
+apbuart *grlib_debug_uart = NULL;
/* Before UART driver has registered (or when no UART is available), calls to
* printk that gets to bsp_out_char() will be filling data into the
@@ -68,13 +88,17 @@ static void bsp_debug_uart_init(void)
VENDOR_GAISLER, GAISLER_APBUART,
ambapp_find_by_idx, (void *)&i);
if (adev) {
+ uint32_t ctrl;
+
/* Found a matching debug console, initialize debug uart if present
* for printk
*/
apb = (struct ambapp_apb_info *)adev->devinfo;
- grlib_debug_uart = (struct apbuart_regs *)apb->start;
- grlib_debug_uart->ctrl |= APBUART_CTRL_RE | APBUART_CTRL_TE;
- grlib_debug_uart->status = 0;
+ grlib_debug_uart = (apbuart *)apb->start;
+ ctrl = grlib_load_32(&grlib_debug_uart->ctrl);
+ ctrl |= APBUART_CTRL_RE | APBUART_CTRL_TE;
+ grlib_store_32(&grlib_debug_uart->ctrl, ctrl);
+ grlib_store_32(&grlib_debug_uart->status, 0);
}
}
@@ -88,10 +112,14 @@ RTEMS_SYSINIT_ITEM(
static void bsp_out_char(char c)
{
if (grlib_debug_uart == NULL) {
+ uint32_t ctrl;
+
/* Try to assign standard UART address to debug driver to pass some tests */
- grlib_debug_uart = (struct apbuart_regs *) 0x80000100;
- grlib_debug_uart->ctrl |= APBUART_CTRL_RE | APBUART_CTRL_TE;
- grlib_debug_uart->status = 0;
+ grlib_debug_uart = (apbuart *) 0x80000100;
+ ctrl = grlib_load_32(&grlib_debug_uart->ctrl);
+ ctrl |= APBUART_CTRL_RE | APBUART_CTRL_TE;
+ grlib_store_32(&grlib_debug_uart->ctrl, ctrl);
+ grlib_store_32(&grlib_debug_uart->status, 0);
/* Local debug buffer when UART driver has not registered */
/*
pre_printk_dbgbuf[pre_printk_pos++] = c;