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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/u-boot/board/bf533-stamp/ide-cf.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/u-boot/board/bf533-stamp/ide-cf.c')
-rw-r--r--qemu/roms/u-boot/board/bf533-stamp/ide-cf.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/bf533-stamp/ide-cf.c b/qemu/roms/u-boot/board/bf533-stamp/ide-cf.c
new file mode 100644
index 000000000..3e4080e28
--- /dev/null
+++ b/qemu/roms/u-boot/board/bf533-stamp/ide-cf.c
@@ -0,0 +1,98 @@
+/*
+ * CF IDE addon card code
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (c) 2005-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <asm/blackfin.h>
+
+void cf_outb(unsigned char val, volatile unsigned char *addr)
+{
+ /* "ETHERNET" means the expansion memory banks */
+ swap_to(ETHERNET);
+
+ *addr = val;
+ SSYNC();
+
+ swap_to(FLASH);
+}
+
+unsigned char cf_inb(volatile unsigned char *addr)
+{
+ unsigned char c;
+
+ swap_to(ETHERNET);
+
+ c = *addr;
+ SSYNC();
+
+ swap_to(FLASH);
+
+ return c;
+}
+
+void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
+{
+ int i;
+
+ swap_to(ETHERNET);
+
+ for (i = 0; i < words; i++) {
+ *(sect_buf + i) = *addr;
+ SSYNC();
+ }
+
+ swap_to(FLASH);
+}
+
+void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
+{
+ int i;
+
+ swap_to(ETHERNET);
+
+ for (i = 0; i < words; i++) {
+ *addr = *(sect_buf + i);
+ SSYNC();
+ }
+
+ swap_to(FLASH);
+}
+
+/* Definitions used in Compact Flash Boot support */
+#define FIO_EDGE_CF_BITS 0x0000
+#define FIO_POLAR_CF_BITS 0x0000
+#define FIO_EDGE_BITS 0x1E0
+#define FIO_POLAR_BITS 0x160
+
+/* Compact flash status bits in status register */
+#define CF_STAT_BITS 0x00000060
+
+void cf_ide_init(void)
+{
+ int i, cf_stat;
+
+ /* Check whether CF card is inserted */
+ bfin_write_FIO_EDGE(FIO_EDGE_CF_BITS);
+ bfin_write_FIO_POLAR(FIO_POLAR_CF_BITS);
+ for (i = 0; i < 0x300; i++)
+ asm volatile("nop;");
+
+ cf_stat = bfin_read_FIO_FLAG_S() & CF_STAT_BITS;
+
+ bfin_write_FIO_EDGE(FIO_EDGE_BITS);
+ bfin_write_FIO_POLAR(FIO_POLAR_BITS);
+
+ if (!cf_stat) {
+ for (i = 0; i < 0x3000; i++)
+ asm volatile("nop;");
+
+ ide_init();
+ }
+}