u-boot/arch/powerpc/include/asm/8xx_immap.h
Christophe Leroy 907208c452 powerpc: Partialy restore core of mpc8xx
CS Systemes d'Information (CSSI) manufactures 8xx boards for
critical communication systems. Those boards have been
running U-Boot since 2010 and will have to be maintained
until at least 2027.

commit 5b8e76c35e
("powerpc, 8xx: remove support for 8xx") orphaned those boards
by removing support for the mpc8xx CPU.

This commit partially restores support for the 8xx, with the
following limitations:
- Restores support for MPC866 and MPC885 only
- Does not restore IDE, PCMCIA, I2C, USB
- Does not restore examples
- Does not restore POST
- Does not restore Ethernet on SCC
- Does not restore console on SCC
- Does not restore bedbug and kgdb support

As the 866 and 885 do not support the following features,
they are not restored either:
- VIDEO / LCD
- RTC clock

The CPM uCODE patch is not restored either, because:
- 866 and 885 already have support for I2C and SPI relocation
without a uCODE patch
- relocation of SMC, I2C or SPI is only needed for using SCCs
for Ethernet or QMC

The dynamic setup/calculation of clocks is removed, we
expect the target being use with the clock and PLPRCR register
defined in the configuration.
All the clock settings for 8xx prior to 866 is removed as
well as we now only support 866 and 885.

This code is mature and addresses mature boards. Therefore
all code enclosed in '#if 0/#endif' and '#if XX_DEBUG/#endif'
is unneeded.

The following files are not restored by this patch:

- arch/powerpc/cpu/mpc8xx/bedbug_860.c
- arch/powerpc/cpu/mpc8xx/fec.h
- arch/powerpc/cpu/mpc8xx/kgdb.S
- arch/powerpc/cpu/mpc8xx/plprcr_write.S
- arch/powerpc/cpu/mpc8xx/scc.c
- arch/powerpc/cpu/mpc8xx/upatch.c
- arch/powerpc/cpu/mpc8xx/video.c
- arch/powerpc/include/asm/status_led.h
- arch/powerpc/lib/ide.c
- arch/powerpc/lib/ide.h
- doc/README.MPC866
- drivers/pcmcia/mpc8xx_pcmcia.c
- drivers/rtc/mpc8xx.c
- drivers/usb/gadget/mpc8xx_udc.c
- drivers/video/mpc8xx_lcd.c
- examples/standalone/test_burst.c
- examples/standalone/test_burst.h
- examples/standalone/test_burst_lib.S
- examples/standalone/timer.c
- include/mpc823_lcd.h
- include/usb/mpc8xx_udc.h
- post/cpu/mpc8xx/Makefile
- post/cpu/mpc8xx/cache.c
- post/cpu/mpc8xx/cache_8xx.S
- post/cpu/mpc8xx/ether.c
- post/cpu/mpc8xx/spr.c
- post/cpu/mpc8xx/uart.c
- post/cpu/mpc8xx/usb.c
- post/cpu/mpc8xx/watchdog.c

Some of the restored files are not located in a proper location.
In order to keep traceability of the changes, they will be
moved to their correct location and moved to Kconfig in a
followup patch.

This patch also declares CSSI as point of contact for the update
of the 8xx platform, as those boards are the only ones still
being maintained on the 8xx area. A later patch will add
those boards to the tree.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-08 15:55:26 -04:00

468 lines
10 KiB
C

/*
* 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
*/
#ifndef __IMMAP_8XX__
#define __IMMAP_8XX__
/* System configuration registers.
*/
typedef struct sys_conf {
uint sc_siumcr;
uint sc_sypcr;
uint sc_swt;
char res1[2];
ushort sc_swsr;
uint sc_sipend;
uint sc_simask;
uint sc_siel;
uint sc_sivec;
uint sc_tesr;
char res2[0xc];
uint sc_sdcr;
char res3[0x4c];
} sysconf8xx_t;
/* PCMCIA configuration registers.
*/
typedef struct pcmcia_conf {
uint pcmc_pbr0;
uint pcmc_por0;
uint pcmc_pbr1;
uint pcmc_por1;
uint pcmc_pbr2;
uint pcmc_por2;
uint pcmc_pbr3;
uint pcmc_por3;
uint pcmc_pbr4;
uint pcmc_por4;
uint pcmc_pbr5;
uint pcmc_por5;
uint pcmc_pbr6;
uint pcmc_por6;
uint pcmc_pbr7;
uint pcmc_por7;
char res1[0x20];
uint pcmc_pgcra;
uint pcmc_pgcrb;
uint pcmc_pscr;
char res2[4];
uint pcmc_pipr;
char res3[4];
uint pcmc_per;
char res4[4];
} pcmconf8xx_t;
/* Memory controller registers.
*/
typedef struct mem_ctlr {
uint memc_br0;
uint memc_or0;
uint memc_br1;
uint memc_or1;
uint memc_br2;
uint memc_or2;
uint memc_br3;
uint memc_or3;
uint memc_br4;
uint memc_or4;
uint memc_br5;
uint memc_or5;
uint memc_br6;
uint memc_or6;
uint memc_br7;
uint memc_or7;
char res1[0x24];
uint memc_mar;
uint memc_mcr;
char res2[4];
uint memc_mamr;
uint memc_mbmr;
ushort memc_mstat;
ushort memc_mptpr;
uint memc_mdr;
char res3[0x80];
} memctl8xx_t;
/* System Integration Timers.
*/
typedef struct sys_int_timers {
ushort sit_tbscr;
char res0[0x02];
uint sit_tbreff0;
uint sit_tbreff1;
char res1[0x14];
ushort sit_rtcsc;
char res2[0x02];
uint sit_rtc;
uint sit_rtsec;
uint sit_rtcal;
char res3[0x10];
ushort sit_piscr;
char res4[2];
uint sit_pitc;
uint sit_pitr;
char res5[0x34];
} sit8xx_t;
#define TBSCR_TBIRQ_MASK ((ushort)0xff00)
#define TBSCR_REFA ((ushort)0x0080)
#define TBSCR_REFB ((ushort)0x0040)
#define TBSCR_REFAE ((ushort)0x0008)
#define TBSCR_REFBE ((ushort)0x0004)
#define TBSCR_TBF ((ushort)0x0002)
#define TBSCR_TBE ((ushort)0x0001)
#define RTCSC_RTCIRQ_MASK ((ushort)0xff00)
#define RTCSC_SEC ((ushort)0x0080)
#define RTCSC_ALR ((ushort)0x0040)
#define RTCSC_38K ((ushort)0x0010)
#define RTCSC_SIE ((ushort)0x0008)
#define RTCSC_ALE ((ushort)0x0004)
#define RTCSC_RTF ((ushort)0x0002)
#define RTCSC_RTE ((ushort)0x0001)
#define PISCR_PIRQ_MASK ((ushort)0xff00)
#define PISCR_PS ((ushort)0x0080)
#define PISCR_PIE ((ushort)0x0004)
#define PISCR_PTF ((ushort)0x0002)
#define PISCR_PTE ((ushort)0x0001)
/* Clocks and Reset.
*/
typedef struct clk_and_reset {
uint car_sccr;
uint car_plprcr;
uint car_rsr;
char res[0x74]; /* Reserved area */
} car8xx_t;
/* System Integration Timers keys.
*/
typedef struct sitk {
uint sitk_tbscrk;
uint sitk_tbreff0k;
uint sitk_tbreff1k;
uint sitk_tbk;
char res1[0x10];
uint sitk_rtcsck;
uint sitk_rtck;
uint sitk_rtseck;
uint sitk_rtcalk;
char res2[0x10];
uint sitk_piscrk;
uint sitk_pitck;
char res3[0x38];
} sitk8xx_t;
/* Clocks and reset keys.
*/
typedef struct cark {
uint cark_sccrk;
uint cark_plprcrk;
uint cark_rsrk;
char res[0x474];
} cark8xx_t;
/* The key to unlock registers maintained by keep-alive power.
*/
#define KAPWR_KEY ((unsigned int)0x55ccaa33)
/* I2C
*/
typedef struct i2c {
u_char i2c_i2mod;
char res1[3];
u_char i2c_i2add;
char res2[3];
u_char i2c_i2brg;
char res3[3];
u_char i2c_i2com;
char res4[3];
u_char i2c_i2cer;
char res5[3];
u_char i2c_i2cmr;
char res6[0x8b];
} i2c8xx_t;
/* DMA control/status registers.
*/
typedef struct sdma_csr {
char res1[4];
uint sdma_sdar;
u_char sdma_sdsr;
char res3[3];
u_char sdma_sdmr;
char res4[3];
u_char sdma_idsr1;
char res5[3];
u_char sdma_idmr1;
char res6[3];
u_char sdma_idsr2;
char res7[3];
u_char sdma_idmr2;
char res8[0x13];
} sdma8xx_t;
/* Communication Processor Module Interrupt Controller.
*/
typedef struct cpm_ic {
ushort cpic_civr;
char res[0xe];
uint cpic_cicr;
uint cpic_cipr;
uint cpic_cimr;
uint cpic_cisr;
} cpic8xx_t;
/* Input/Output Port control/status registers.
*/
typedef struct io_port {
ushort iop_padir;
ushort iop_papar;
ushort iop_paodr;
ushort iop_padat;
char res1[8];
ushort iop_pcdir;
ushort iop_pcpar;
ushort iop_pcso;
ushort iop_pcdat;
ushort iop_pcint;
char res2[6];
ushort iop_pddir;
ushort iop_pdpar;
char res3[2];
ushort iop_pddat;
uint utmode;
char res4[4];
} iop8xx_t;
/* Communication Processor Module Timers
*/
typedef struct cpm_timers {
ushort cpmt_tgcr;
char res1[0xe];
ushort cpmt_tmr1;
ushort cpmt_tmr2;
ushort cpmt_trr1;
ushort cpmt_trr2;
ushort cpmt_tcr1;
ushort cpmt_tcr2;
ushort cpmt_tcn1;
ushort cpmt_tcn2;
ushort cpmt_tmr3;
ushort cpmt_tmr4;
ushort cpmt_trr3;
ushort cpmt_trr4;
ushort cpmt_tcr3;
ushort cpmt_tcr4;
ushort cpmt_tcn3;
ushort cpmt_tcn4;
ushort cpmt_ter1;
ushort cpmt_ter2;
ushort cpmt_ter3;
ushort cpmt_ter4;
char res2[8];
} cpmtimer8xx_t;
/* Finally, the Communication Processor stuff.....
*/
typedef struct scc { /* Serial communication channels */
uint scc_gsmrl;
uint scc_gsmrh;
ushort scc_psmr;
char res1[2];
ushort scc_todr;
ushort scc_dsr;
ushort scc_scce;
char res2[2];
ushort scc_sccm;
char res3;
u_char scc_sccs;
char res4[8];
} scc_t;
typedef struct smc { /* Serial management channels */
char res1[2];
ushort smc_smcmr;
char res2[2];
u_char smc_smce;
char res3[3];
u_char smc_smcm;
char res4[5];
} smc_t;
/* MPC860T Fast Ethernet Controller. It isn't part of the CPM, but
* it fits within the address space.
*/
typedef struct 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_hash_table_high; /* upper 32-bits of hash table */
uint fec_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;
typedef struct 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];
/* Baud rate generators.
*/
uint cp_brgc1;
uint cp_brgc2;
uint cp_brgc3;
uint cp_brgc4;
/* Serial Communication Channels.
*/
scc_t cp_scc[4];
/* Serial Management Channels.
*/
smc_t cp_smc[2];
/* Serial Peripheral Interface.
*/
ushort cp_spmode;
u_char res7[4];
u_char cp_spie;
u_char res8[3];
u_char cp_spim;
u_char res9[2];
u_char cp_spcom;
u_char res10[2];
/* Parallel Interface Port.
*/
u_char res11[2];
ushort cp_pipc;
u_char res12[2];
ushort cp_ptpr;
uint cp_pbdir;
uint cp_pbpar;
u_char res13[2];
ushort cp_pbodr;
uint cp_pbdat;
/* 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];
u_char res19[0x100];
u_char cp_siram[0x200];
/* The fast ethernet controller is not really part of the CPM,
* but it resides in the address space.
*/
fec_t cp_fec;
char res18[0xE00];
/* The MPC885 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 */
/* Parameter RAM */
union {
u_char cp_dparam[0x400];
u16 cp_dparam16[0x200];
};
} cpm8xx_t;
/* Internal memory map.
*/
typedef struct immap {
sysconf8xx_t im_siu_conf; /* SIU Configuration */
pcmconf8xx_t im_pcmcia; /* PCMCIA Configuration */
memctl8xx_t im_memctl; /* Memory Controller */
sit8xx_t im_sit; /* System integration timers */
car8xx_t im_clkrst; /* Clocks and reset */
sitk8xx_t im_sitk; /* Sys int timer keys */
cark8xx_t im_clkrstk; /* Clocks and reset keys */
char res[96];
i2c8xx_t im_i2c; /* I2C control/status */
sdma8xx_t im_sdma; /* SDMA control/status */
cpic8xx_t im_cpic; /* CPM Interrupt Controller */
iop8xx_t im_ioport; /* IO Port control/status */
cpmtimer8xx_t im_cpmtimer; /* CPM timers */
cpm8xx_t im_cpm; /* Communication processor */
} immap_t;
#endif /* __IMMAP_8XX__ */