path: root/arch/cris/arch-v10/kernel/shadows.c
diff options
authorLinus Torvalds <>2005-04-16 15:20:36 -0700
committerLinus Torvalds <>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/cris/arch-v10/kernel/shadows.c
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/cris/arch-v10/kernel/shadows.c')
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/cris/arch-v10/kernel/shadows.c b/arch/cris/arch-v10/kernel/shadows.c
new file mode 100644
index 00000000000..561a890a8e4
--- /dev/null
+++ b/arch/cris/arch-v10/kernel/shadows.c
@@ -0,0 +1,36 @@
+/* $Id: shadows.c,v 1.1 2001/12/17 13:59:27 bjornw Exp $
+ *
+ * Various shadow registers. Defines for these are in include/asm-etrax100/io.h
+ */
+/* Shadows for internal Etrax-registers */
+unsigned long genconfig_shadow;
+unsigned long port_g_data_shadow;
+unsigned char port_pa_dir_shadow;
+unsigned char port_pa_data_shadow;
+unsigned char port_pb_i2c_shadow;
+unsigned char port_pb_config_shadow;
+unsigned char port_pb_dir_shadow;
+unsigned char port_pb_data_shadow;
+unsigned long r_timer_ctrl_shadow;
+/* Shadows for external I/O port registers.
+ * These are only usable if there actually IS a latch connected
+ * to the corresponding external chip-select pin.
+ *
+ * A common usage is that CSP0 controls LED's and CSP4 video chips.
+ */
+unsigned long port_cse1_shadow;
+unsigned long port_csp0_shadow;
+unsigned long port_csp4_shadow;
+/* Corresponding addresses for the ports.
+ * These are initialized in arch/cris/mm/init.c using ioremap.
+ */
+volatile unsigned long *port_cse1_addr;
+volatile unsigned long *port_csp0_addr;
+volatile unsigned long *port_csp4_addr;