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authorJorge Ramirez-Ortiz <jramirez@baylibre.com>2018-09-23 09:41:00 +0200
committerldts <jorge.ramirez.ortiz@gmail.com>2018-10-17 18:41:53 +0200
commit0a106e28697abdb0e0fe35618929a3a025aa82d8 (patch)
tree66a7c66abf577d49f0acc4534858daf2a163ea69 /drivers/renesas
parentc2f286820471ed276c57e603762bd831873e5a17 (diff)
downloadtrusted-firmware-a-0a106e28697abdb0e0fe35618929a3a025aa82d8.tar.gz
rcar_gen3: drivers: console
Signed-off-by: ldts <jramirez@baylibre.com>
Diffstat (limited to 'drivers/renesas')
-rw-r--r--drivers/renesas/rcar/console/rcar_console.S89
-rw-r--r--drivers/renesas/rcar/console/rcar_printf.c102
-rw-r--r--drivers/renesas/rcar/console/rcar_printf.h19
3 files changed, 210 insertions, 0 deletions
diff --git a/drivers/renesas/rcar/console/rcar_console.S b/drivers/renesas/rcar/console/rcar_console.S
new file mode 100644
index 0000000000..e3c7363620
--- /dev/null
+++ b/drivers/renesas/rcar/console/rcar_console.S
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2018, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+
+ .globl console_init
+ .globl console_putc
+ .globl console_uninit
+ .globl console_core_init
+ .globl console_core_putc
+ .globl console_core_getc
+ .globl console_flush
+
+ .extern rcar_log_init
+ .extern rcar_set_log_data
+
+ /* -----------------------------------------------
+ * int console_core_init(unsigned long base_addr,
+ * unsigned int uart_clk, unsigned int baud_rate)
+ * Function to initialize the log area. This
+ * function will be accessed by console_init and
+ * crash reporting.
+ * Return 1 on SUCCESS, 0 on error
+ * In: x0 - Not used
+ * w1 - Not used
+ * w2 - Not used
+ * -----------------------------------------------
+ */
+func console_core_init
+ b rcar_log_init
+endfunc console_core_init
+func console_init
+ b console_core_init
+endfunc console_init
+
+ /* --------------------------------------------------------
+ * int console_core_putc(int c, unsigned long base_addr)
+ * Function to output a character over the log area.
+ * Return 1 on SUCCESS, 0 on error
+ * In : w0 - Not used
+ * x1 - Not used
+ * --------------------------------------------------------
+ */
+func console_core_putc
+ b rcar_set_log_data
+endfunc console_core_putc
+func console_putc
+ b console_core_putc
+endfunc console_putc
+
+ /* ---------------------------------------------
+ * int console_core_getc(unsigned long base_addr)
+ * Function to get a character from the console.
+ * It returns the character grabbed on success
+ * or -1 on error.
+ * In : x0 - console base address
+ * Clobber list : x0, x1
+ * ---------------------------------------------
+ */
+func console_core_getc
+ ret
+endfunc console_core_getc
+
+ /* -----------------------------------------------
+ * void console_uninit(void)
+ * Function to finish the use of console driver.
+ * -----------------------------------------------
+ */
+func console_uninit
+ ret
+endfunc console_uninit
+
+ /* ---------------------------------------------
+ * int console_flush(void)
+ * Function to force a write of all buffered
+ * data that hasn't been output. It returns 0
+ * upon successful completion, otherwise it
+ * returns -1.
+ * Clobber list : x0, x1
+ * ---------------------------------------------
+ */
+func console_flush
+ mov w0, #0
+ ret
+endfunc console_flush
diff --git a/drivers/renesas/rcar/console/rcar_printf.c b/drivers/renesas/rcar/console/rcar_printf.c
new file mode 100644
index 0000000000..9321b584ad
--- /dev/null
+++ b/drivers/renesas/rcar/console/rcar_printf.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2015-2017, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <debug.h>
+#include <stdarg.h>
+#include <stdint.h>
+
+#include <arch_helpers.h>
+#include <platform_def.h>
+#include <bakery_lock.h>
+#include "rcar_def.h"
+#include "rcar_private.h"
+#include "rcar_printf.h"
+
+#define INDEX_TIMER_COUNT (4U)
+
+extern RCAR_INSTANTIATE_LOCK typedef struct log_head {
+ uint8_t head[4];
+ uint32_t index;
+ uint32_t size;
+ uint8_t res[4];
+} loghead_t;
+
+typedef struct log_map {
+ loghead_t header;
+ uint8_t log_data[RCAR_BL31_LOG_MAX];
+ uint8_t res_data[RCAR_LOG_RES_SIZE];
+} logmap_t;
+
+int32_t rcar_set_log_data(int32_t c)
+{
+ logmap_t *t_log;
+
+ t_log = (logmap_t *) RCAR_BL31_LOG_BASE;
+
+ rcar_lock_get();
+
+ /*
+ * If index is broken, then index and size initialize
+ */
+ if (t_log->header.index >= (uint32_t) RCAR_BL31_LOG_MAX) {
+ t_log->header.index = 0U;
+ t_log->header.size = 0U;
+ }
+ /*
+ * data store to log area then index and size renewal
+ */
+ t_log->log_data[t_log->header.index] = (uint8_t) c;
+ t_log->header.index++;
+ if (t_log->header.size < t_log->header.index) {
+ t_log->header.size = t_log->header.index;
+ }
+ if (t_log->header.index >= (uint32_t) RCAR_BL31_LOG_MAX) {
+ t_log->header.index = 0U;
+ }
+
+ rcar_lock_release();
+
+ return 1;
+}
+
+int32_t rcar_log_init(void)
+{
+
+ static const uint8_t const_header[] = "TLOG";
+ logmap_t *t_log;
+ int16_t init_flag = 0;
+
+ t_log = (logmap_t *) RCAR_BL31_LOG_BASE;
+ if (memcmp
+ ((const void *)t_log->header.head, (const void *)const_header,
+ sizeof(t_log->header.head)) != 0) {
+ /*
+ * Log header is not "TLOG", then log area initialize
+ */
+ init_flag = 1;
+ }
+ if (t_log->header.index >= (uint32_t) RCAR_BL31_LOG_MAX) {
+ /*
+ * index is broken, then log area initialize
+ */
+ init_flag = 1;
+ }
+ if (init_flag == 1) {
+ (void)memset((void *)t_log->log_data, 0,
+ (size_t) RCAR_BL31_LOG_MAX);
+ (void)memcpy((void *)t_log->header.head,
+ (const void *)const_header,
+ sizeof(t_log->header.head));
+ t_log->header.index = 0U;
+ t_log->header.size = 0U;
+#ifndef IMAGE_BL2
+ rcar_stack_generic_timer[INDEX_TIMER_COUNT] = 0U;
+#endif
+ }
+ rcar_lock_init();
+
+ return 1;
+}
diff --git a/drivers/renesas/rcar/console/rcar_printf.h b/drivers/renesas/rcar/console/rcar_printf.h
new file mode 100644
index 0000000000..dd7a61b032
--- /dev/null
+++ b/drivers/renesas/rcar/console/rcar_printf.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2015-2017, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef RCAR_PRINTF_H__
+#define RCAR_PRINTF_H__
+
+#include <string.h>
+
+int32_t rcar_set_log_data(int32_t c);
+int32_t rcar_log_init(void);
+
+#if IMAGE_BL31
+extern uint64_t rcar_stack_generic_timer[5];
+#endif
+
+#endif