1 files changed, 135 insertions, 0 deletions
diff --git a/plat/gxb/mailbox.c b/plat/gxb/mailbox.c
new file mode 100644
index 0000000..eadc2f1
--- /dev/null
+++ b/plat/gxb/mailbox.c
@@ -0,0 +1,135 @@
+
+/*
+ * arch/arm/cpu/armv8/common/firmware/plat/gxb/mailbox.c
+ *
+ * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <io.h>
+#include <stdint.h>
+#include <asm/arch/romboot.h>
+#include <mailbox.h>
+#include <asm/arch/secure_apb.h>
+
+void mb_send_data(uint32_t val, uint32_t port)
+{
+	unsigned long  base_addr = SEC_HIU_MAILBOX_SET_0;
+	unsigned long  set_addr;
+
+	if (port > 5) {
+		serial_puts("Error: Use the error port num!\n");
+		return;
+	}
+
+	set_addr = base_addr + port*3*4;
+
+	if (!val) {
+		serial_puts("Error: mailbox try to send zero val!\n");
+		return;
+	}
+
+	writel(val, set_addr);
+
+	return;
+}
+
+uint32_t mb_read_data(uint32_t port)
+{
+	unsigned long base_addr = SEC_HIU_MAILBOX_STAT_0;
+	uint32_t val;
+
+	if (port > 5) {
+		serial_puts("Error: Use the error port num!\n");
+		return 0;
+	}
+
+	val = readl(base_addr + port*3*4);
+
+	if (val)
+		return val;
+	else {
+//		print_out("Warning: read mailbox val=0.\n");
+		return 0;
+	}
+}
+
+void mb_clear_data(uint32_t val, uint32_t port)
+{
+	uint32_t base_addr = SEC_HIU_MAILBOX_CLR_0;
+
+	unsigned long clean_addr = base_addr + port*3*4;
+
+	if (port > 5) {
+		serial_puts("Error: Use the error port num!\n");
+		return;
+	}
+
+	if (!val) {
+		serial_puts("Warning: clean val=0.\n");
+		return;
+	}
+
+	writel(val,clean_addr);
+
+	return;
+}
+
+void send_bl30x(uint32_t addr, uint32_t size, const uint8_t * sha2, \
+	uint32_t sha2_length, const char * name)
+{
+	int i;
+	*(unsigned int *)MB_SRAM_BASE = size;
+
+	if (0 == strcmp("bl301", name)) {
+		/*bl301 must wait bl30 run*/
+		serial_puts("Wait bl30...");
+		while (0x3 != ((readl(AO_SEC_SD_CFG15) >> 20) & 0x3)) {}
+		serial_puts("Done\n");
+	}
+
+	serial_puts("Sending ");
+	serial_puts(name);
+	//serial_puts("time=0x%x size=0x%x\n", readl(0xc1109988),size);
+
+	mb_send_data(CMD_DATA_LEN, 3);
+	do {} while(mb_read_data(3));
+	memcpy((void *)MB_SRAM_BASE, (const void *)sha2, sha2_length);
+	mb_send_data(CMD_SHA, 3);
+	do {} while(mb_read_data(3));
+
+	for (i = 0; i < size; i+=1024) {
+		serial_puts(".");
+		if (size >= i + 1024)
+			memcpy((void *)MB_SRAM_BASE,(const void *)(unsigned long)(addr+i),1024);
+		else if(size > i)
+			memcpy((void *)MB_SRAM_BASE,(const void *)(unsigned long)(addr+i),(size-i));
+
+		mb_send_data(CMD_DATA, 3);
+		do {} while(mb_read_data(3));
+	}
+	mb_send_data(CMD_OP_SHA, 3);
+
+	do {} while(mb_read_data(3));
+	serial_puts("OK. \nRun ");
+	serial_puts(name);
+	serial_puts("...\n");
+
+	/* The BL31 will run after this command */
+	mb_send_data(CMD_END,3);//code transfer end.
+}