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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/board-js2x/rtas/rtas_out.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/SLOF/board-js2x/rtas/rtas_out.c')
-rw-r--r--qemu/roms/SLOF/board-js2x/rtas/rtas_out.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/board-js2x/rtas/rtas_out.c b/qemu/roms/SLOF/board-js2x/rtas/rtas_out.c
new file mode 100644
index 000000000..ce4c00bd2
--- /dev/null
+++ b/qemu/roms/SLOF/board-js2x/rtas/rtas_out.c
@@ -0,0 +1,120 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ * IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <cpu.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <rtas.h>
+#include <hw.h>
+#include "rtas_board.h"
+
+volatile unsigned char *uart;
+volatile unsigned char u4Flag;
+
+void io_init(void);
+unsigned long check_flash_image(unsigned long rombase, unsigned long length,
+ unsigned long start_crc);
+
+void
+io_init(void)
+{
+ // read ID register: only if it is a PC87427, enable serial2
+ store8_ci(0xf400002e, 0x20);
+ if (load8_ci(0xf400002f) != 0xf2) {
+ uart = (volatile unsigned char *) 0xf40003f8;
+ u4Flag = 0;
+ } else {
+ uart = (volatile unsigned char *) 0xf40002f8;
+ u4Flag = 1;
+ }
+}
+
+static void
+display_char(char ch)
+{
+ volatile int i = 0;
+ volatile unsigned char *uart = (volatile unsigned char *) 0xf40002f8;
+ int cnt = 2;
+ while (cnt--) {
+ set_ci();
+ while (!(uart[5] & 0x20)) {
+ i++;
+ }
+ uart[0] = ch;
+ clr_ci();
+ uart += 0x100;
+ }
+}
+
+ssize_t
+write(int fd __attribute((unused)), const void *buf, size_t cnt)
+{
+ while (cnt--) {
+ display_char(*(char *) buf);
+ if (*(char *) buf++ == '\n')
+ display_char('\r');
+ }
+ return 0;
+}
+
+void *
+sbrk(int incr __attribute((unused)))
+{
+ return (void *) -1;
+}
+
+
+
+void
+rtas_display_character(rtas_args_t * pArgs)
+{
+ int retVal = 0;
+ display_char((char) pArgs->args[0]);
+ pArgs->args[1] = retVal;
+}
+
+unsigned long
+check_flash_image(unsigned long rombase, unsigned long length,
+ unsigned long start_crc)
+{
+ const uint32_t CrcTableHigh[16] = {
+ 0x00000000, 0x4C11DB70, 0x9823B6E0, 0xD4326D90,
+ 0x34867077, 0x7897AB07, 0xACA5C697, 0xE0B41DE7,
+ 0x690CE0EE, 0x251D3B9E, 0xF12F560E, 0xBD3E8D7E,
+ 0x5D8A9099, 0x119B4BE9, 0xC5A92679, 0x89B8FD09
+ };
+ const uint32_t CrcTableLow[16] = {
+ 0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9,
+ 0x130476DC, 0x17C56B6B, 0x1A864DB2, 0x1E475005,
+ 0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61,
+ 0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD
+ };
+
+ char *Buffer = (char *) rombase;
+ uint32_t AccumCRC = start_crc;
+ char val;
+ uint32_t Temp;
+ while (length-- > 0) {
+ set_ci();
+ val = *Buffer;
+ clr_ci();
+ Temp = ((AccumCRC >> 24) ^ val) & 0x000000ff;
+ AccumCRC <<= 8;
+ AccumCRC ^= CrcTableHigh[Temp / 16];
+ AccumCRC ^= CrcTableLow[Temp % 16];
+ ++Buffer;
+ }
+ return AccumCRC;
+}