Hi,
This information mean initially with control PC speaker through AMD
SB600.
Please reference appendent file.
Thanks.
Signed-off-by: Libra Li <[email protected]>
Index: src/mainboard/technexion/tim5690/cache_as_ram_auto.c
===================================================================
--- src/mainboard/technexion/tim5690/cache_as_ram_auto.c (revision 4952)
+++ src/mainboard/technexion/tim5690/cache_as_ram_auto.c (working copy)
@@ -102,6 +102,7 @@
#define TECHNEXION_EARLY_SETUP
#include "tn_post_code.c"
+#include "spkr.c"
#if CONFIG_USE_FALLBACK_IMAGE == 1
@@ -181,6 +182,7 @@
technexion_post_code_init();
technexion_post_code(LED_MESSAGE_START);
+ spkr_init();
if (bist == 0) {
bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
@@ -249,6 +251,8 @@
soft_reset();
}
+ speaker_enable(0xff);
+
allow_all_aps_stop(bsp_apicid);
/* It's the time to set ctrl now; */
@@ -261,6 +265,8 @@
sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);
+ speaker_disable();
+
rs690_before_pci_init();
sb600_before_pci_init();
Index: src/mainboard/technexion/tim5690/spkr.c
===================================================================
--- src/mainboard/technexion/tim5690/spkr.c (revision 0)
+++ src/mainboard/technexion/tim5690/spkr.c (revision 0)
@@ -0,0 +1,56 @@
+
+#ifdef TECHNEXION_EARLY_SETUP
+
+//#include <arch/cpu.h>
+#include "southbridge/amd/sb600/sb600.h"
+
+#else
+
+//#include <device/pci.h>
+//#include <device/pci_ids.h>
+
+#endif
+
+
+#define CONTROL_WORD_REGISTER 0x43
+
+#define COUNTER0 0x40
+#define COUNTER1 0x41
+#define COUNTER2 0x42
+
+#define PC_SPEAKER_PORT 0x61
+
+
+#ifdef TECHNEXION_EARLY_SETUP
+void spkr_init(void) {
+ u8 byte;
+
+ byte = pmio_read(0x60);
+ byte |= (1 << 5);
+ pmio_write(0x60, byte);
+}
+#endif
+
+void speaker_enable(u16 freq)
+{
+ /* Select counter 2. Read/write LSB first, then MSB. Use mode 3
+ (square wave generator). Use a 16bit binary counter. */
+ outb(0xb6, CONTROL_WORD_REGISTER);
+
+ /* Set the desired tone frequency. */
+ outb((u8)(freq & 0x00ff), COUNTER2); /* LSB. */
+ outb((u8)(freq >> 8), COUNTER2); /* MSB. */
+
+ /* Enable the PC speaker (set bits 0 and 1). */
+ outb(inb(PC_SPEAKER_PORT) | 0x03, PC_SPEAKER_PORT);
+}
+
+/**
+ * Disable the PC speaker.
+ */
+void speaker_disable(void)
+{
+ /* Disable the PC speaker (clear bits 0 and 1). */
+ outb(inb(PC_SPEAKER_PORT) & 0xfc, PC_SPEAKER_PORT);
+}
+
--
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