37 lines
1.0 KiB
C
37 lines
1.0 KiB
C
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/* $Id: shadows.c,v 1.1 2001/12/17 13:59:27 bjornw Exp $
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*
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* Various shadow registers. Defines for these are in include/asm-etrax100/io.h
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*/
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/* Shadows for internal Etrax-registers */
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unsigned long genconfig_shadow;
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unsigned long port_g_data_shadow;
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unsigned char port_pa_dir_shadow;
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unsigned char port_pa_data_shadow;
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unsigned char port_pb_i2c_shadow;
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unsigned char port_pb_config_shadow;
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unsigned char port_pb_dir_shadow;
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unsigned char port_pb_data_shadow;
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unsigned long r_timer_ctrl_shadow;
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/* Shadows for external I/O port registers.
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* These are only usable if there actually IS a latch connected
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* to the corresponding external chip-select pin.
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*
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* A common usage is that CSP0 controls LED's and CSP4 video chips.
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*/
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unsigned long port_cse1_shadow;
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unsigned long port_csp0_shadow;
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unsigned long port_csp4_shadow;
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/* Corresponding addresses for the ports.
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* These are initialized in arch/cris/mm/init.c using ioremap.
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*/
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volatile unsigned long *port_cse1_addr;
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volatile unsigned long *port_csp0_addr;
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volatile unsigned long *port_csp4_addr;
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