cregit-Linux how code gets into the kernel

Release 4.7 arch/cris/arch-v10/kernel/shadows.c

 * Various shadow registers. Defines for these are in include/asm-etrax100/io.h

/* Shadows for internal Etrax-registers */

unsigned long genconfig_shadow;

unsigned long gen_config_ii_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 LEDs 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;

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