/* * MPC8xx Internal Memory Map * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) * * The I/O on the MPC860 is comprised of blocks of special registers * and the dual port ram for the Communication Processor Module. * Within this space are functional units such as the SIU, memory * controller, system timers, and other control functions. It is * a combination that I found difficult to separate into logical * functional files.....but anyone else is welcome to try. -- Dan
*/ #ifdef __KERNEL__ #ifndef __IMMAP_8XX__ #define __IMMAP_8XX__
/* MPC860T Fast Ethernet Controller. It isn't part of the CPM, but * it fits within the address space.
*/
typedefstruct fec {
uint fec_addr_low; /* lower 32 bits of station address */
ushort fec_addr_high; /* upper 16 bits of station address */
ushort res1; /* reserved */
uint fec_grp_hash_table_high; /* upper 32-bits of hash table */
uint fec_grp_hash_table_low; /* lower 32-bits of hash table */
uint fec_r_des_start; /* beginning of Rx descriptor ring */
uint fec_x_des_start; /* beginning of Tx descriptor ring */
uint fec_r_buff_size; /* Rx buffer size */
uint res2[9]; /* reserved */
uint fec_ecntrl; /* ethernet control register */
uint fec_ievent; /* interrupt event register */
uint fec_imask; /* interrupt mask register */
uint fec_ivec; /* interrupt level and vector status */
uint fec_r_des_active; /* Rx ring updated flag */
uint fec_x_des_active; /* Tx ring updated flag */
uint res3[10]; /* reserved */
uint fec_mii_data; /* MII data register */
uint fec_mii_speed; /* MII speed control register */
uint res4[17]; /* reserved */
uint fec_r_bound; /* end of RAM (read-only) */
uint fec_r_fstart; /* Rx FIFO start address */
uint res5[6]; /* reserved */
uint fec_x_fstart; /* Tx FIFO start address */
uint res6[17]; /* reserved */
uint fec_fun_code; /* fec SDMA function code */
uint res7[3]; /* reserved */
uint fec_r_cntrl; /* Rx control register */
uint fec_r_hash; /* Rx hash register */
uint res8[14]; /* reserved */
uint fec_x_cntrl; /* Tx control register */
uint res9[0x1e]; /* reserved */
} fec_t;
/* The FEC and LCD color map share the same address space.... * I guess we will never see an 823T :-).
*/ union fec_lcd {
fec_t fl_un_fec;
u_char fl_un_cmap[0x200];
};
typedefstruct comm_proc { /* General control and status registers.
*/
ushort cp_cpcr;
u_char res1[2];
ushort cp_rccr;
u_char res2;
u_char cp_rmds;
u_char res3[4];
ushort cp_cpmcr1;
ushort cp_cpmcr2;
ushort cp_cpmcr3;
ushort cp_cpmcr4;
u_char res4[2];
ushort cp_rter;
u_char res5[2];
ushort cp_rtmr;
u_char res6[0x14];
/* Port E - MPC87x/88x only.
*/
uint cp_pedir;
uint cp_pepar;
uint cp_peso;
uint cp_peodr;
uint cp_pedat;
/* Communications Processor Timing Register - Contains RMII Timing for the FECs on MPC87x/88x only.
*/
uint cp_cptr;
/* Serial Interface and Time Slot Assignment.
*/
uint cp_simode;
u_char cp_sigmr;
u_char res15;
u_char cp_sistr;
u_char cp_sicmr;
u_char res16[4];
uint cp_sicr;
uint cp_sirp;
u_char res17[0xc];
/* 256 bytes of MPC823 video controller RAM array.
*/
u_char cp_vcram[0x100];
u_char cp_siram[0x200];
/* The fast ethernet controller is not really part of the CPM, * but it resides in the address space. * The LCD color map is also here.
*/ union fec_lcd fl_un; #define cp_fec fl_un.fl_un_fec #define lcd_cmap fl_un.fl_un_cmap char res18[0xE00];
/* The DUET family has a second FEC here */
fec_t cp_fec2; #define cp_fec1 cp_fec /* consistency macro */
/* Dual Ported RAM follows. * There are many different formats for this memory area * depending upon the devices used and options chosen. * Some processors don't have all of it populated.
*/
u_char cp_dpmem[0x1C00]; /* BD / Data / ucode */
u_char cp_dparam[0x400]; /* Parameter RAM */
} cpm8xx_t;
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