/* * Various shadow registers. Defines for these are in include/asm-cris/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;