static void __init
m8260_setup_arch(void)
{
/* Reset the Communication Processor Module.
*/
m8260_cpm_reset();
}
/*
* Breath some life into the CPU...
*
* Set up the memory map,
* initialize a bunch of registers,
* initialize the UPM's
*/
void cpu_init_f (volatile immap_t * immr)
{
#if !defined(CONFIG_COGENT) /* done in start.S for the cogent */
uint sccr;
#endif
#if defined(CONFIG_BOARD_GET_CPU_CLK_F)
unsigned long cpu_clk;
#endif
volatile memctl8260_t *memctl = &immr->im_memctl;
extern void m8260_cpm_reset (void);
/* Pointer is writable since we allocated a register for it */
gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
/* Clear initial global data */
memset ((void *) gd, 0, sizeof (gd_t));
/* RSR - Reset Status Register - clear all status (5-4) */
gd->reset_status = immr->im_clkrst.car_rsr;
immr->im_clkrst.car_rsr = RSR_ALLBITS;
/* RMR - Reset Mode Register - contains checkstop reset enable (5-5) */
immr->im_clkrst.car_rmr = CONFIG_SYS_RMR;
/* BCR - Bus Configuration Register (4-25) */
#if defined(CONFIG_SYS_BCR_60x) && (CONFIG_SYS_BCR_SINGLE)
if (immr->im_siu_conf.sc_bcr & BCR_EBM) {
immr->im_siu_conf.sc_bcr = SET_VAL_MASK(immr->im_siu_conf.sc_bcr, CONFIG_SYS_BCR_60x, 0x80000010);
} else {
immr->im_siu_conf.sc_bcr = SET_VAL_MASK(immr->im_siu_conf.sc_bcr, CONFIG_SYS_BCR_SINGLE, 0x80000010);
}
#else
immr->im_siu_conf.sc_bcr = CONFIG_SYS_BCR;
#endif
/* SIUMCR - contains debug pin configuration (4-31) */
#if defined(CONFIG_SYS_SIUMCR_LOW) && (CONFIG_SYS_SIUMCR_HIGH)
cpu_clk = board_get_cpu_clk_f ();
if (cpu_clk >= 100000000) {
immr->im_siu_conf.sc_siumcr = SET_VAL_MASK(immr->im_siu_conf.sc_siumcr, CONFIG_SYS_SIUMCR_HIGH, 0x9f3cc000);
} else {
immr->im_siu_conf.sc_siumcr = SET_VAL_MASK(immr->im_siu_conf.sc_siumcr, CONFIG_SYS_SIUMCR_LOW, 0x9f3cc000);
}
#else
immr->im_siu_conf.sc_siumcr = CONFIG_SYS_SIUMCR;
#endif
config_8260_ioports (immr);
/* initialize time counter status and control register (4-40) */
immr->im_sit.sit_tmcntsc = CONFIG_SYS_TMCNTSC;
/* initialize the PIT (4-42) */
immr->im_sit.sit_piscr = CONFIG_SYS_PISCR;
#if !defined(CONFIG_COGENT) /* done in start.S for the cogent */
/* System clock control register (9-8) */
sccr = immr->im_clkrst.car_sccr &
(SCCR_PCI_MODE | SCCR_PCI_MODCK | SCCR_PCIDF_MSK);
immr->im_clkrst.car_sccr = sccr |
(CONFIG_SYS_SCCR & ~(SCCR_PCI_MODE | SCCR_PCI_MODCK | SCCR_PCIDF_MSK) );
#endif /* !CONFIG_COGENT */
/*
* Memory Controller:
*/
/* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary
* addresses - these have to be modified later when FLASH size
* has been determined
*/
#if defined(CONFIG_SYS_OR0_REMAP)
memctl->memc_or0 = CONFIG_SYS_OR0_REMAP;
#endif
#if defined(CONFIG_SYS_OR1_REMAP)
memctl->memc_or1 = CONFIG_SYS_OR1_REMAP;
#endif
/* now restrict to preliminary range */
/* the PS came from the HRCW, don´t change it */
memctl->memc_br0 = SET_VAL_MASK(memctl->memc_br0 , CONFIG_SYS_BR0_PRELIM, BRx_PS_MSK);
memctl->memc_or0 = CONFIG_SYS_OR0_PRELIM;
#if defined(CONFIG_SYS_BR1_PRELIM) && defined(CONFIG_SYS_OR1_PRELIM)
memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM;
memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM;
#endif
#if defined(CONFIG_SYS_BR2_PRELIM) && defined(CONFIG_SYS_OR2_PRELIM)
memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM;
memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM;
#endif
#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM)
memctl->memc_or3 = CONFIG_SYS_OR3_PRELIM;
memctl->memc_br3 = CONFIG_SYS_BR3_PRELIM;
#endif
#if defined(CONFIG_SYS_BR4_PRELIM) && defined(CONFIG_SYS_OR4_PRELIM)
memctl->memc_or4 = CONFIG_SYS_OR4_PRELIM;
memctl->memc_br4 = CONFIG_SYS_BR4_PRELIM;
#endif
#if defined(CONFIG_SYS_BR5_PRELIM) && defined(CONFIG_SYS_OR5_PRELIM)
memctl->memc_or5 = CONFIG_SYS_OR5_PRELIM;
memctl->memc_br5 = CONFIG_SYS_BR5_PRELIM;
#endif
#if defined(CONFIG_SYS_BR6_PRELIM) && defined(CONFIG_SYS_OR6_PRELIM)
memctl->memc_or6 = CONFIG_SYS_OR6_PRELIM;
memctl->memc_br6 = CONFIG_SYS_BR6_PRELIM;
#endif
#if defined(CONFIG_SYS_BR7_PRELIM) && defined(CONFIG_SYS_OR7_PRELIM)
memctl->memc_or7 = CONFIG_SYS_OR7_PRELIM;
memctl->memc_br7 = CONFIG_SYS_BR7_PRELIM;
#endif
#if defined(CONFIG_SYS_BR8_PRELIM) && defined(CONFIG_SYS_OR8_PRELIM)
memctl->memc_or8 = CONFIG_SYS_OR8_PRELIM;
memctl->memc_br8 = CONFIG_SYS_BR8_PRELIM;
#endif
#if defined(CONFIG_SYS_BR9_PRELIM) && defined(CONFIG_SYS_OR9_PRELIM)
memctl->memc_or9 = CONFIG_SYS_OR9_PRELIM;
memctl->memc_br9 = CONFIG_SYS_BR9_PRELIM;
#endif
#if defined(CONFIG_SYS_BR10_PRELIM) && defined(CONFIG_SYS_OR10_PRELIM)
memctl->memc_or10 = CONFIG_SYS_OR10_PRELIM;
memctl->memc_br10 = CONFIG_SYS_BR10_PRELIM;
#endif
#if defined(CONFIG_SYS_BR11_PRELIM) && defined(CONFIG_SYS_OR11_PRELIM)
memctl->memc_or11 = CONFIG_SYS_OR11_PRELIM;
memctl->memc_br11 = CONFIG_SYS_BR11_PRELIM;
#endif
m8260_cpm_reset ();
}
