diff options
| author | imp <imp@FreeBSD.org> | 2006-04-21 07:29:14 +0000 |
|---|---|---|
| committer | imp <imp@FreeBSD.org> | 2006-04-21 07:29:14 +0000 |
| commit | 633fda1144fcfaa94b04ccd80c9fd1e1cd4cda6d (patch) | |
| tree | e297ae6dba87d5e05472daac1ca4c160cc3b7fa7 /sys/boot/arm/at91 | |
| parent | ef3a255b546714bf122bb5bdb3477abfd7f4c828 (diff) | |
| download | FreeBSD-src-633fda1144fcfaa94b04ccd80c9fd1e1cd4cda6d.zip FreeBSD-src-633fda1144fcfaa94b04ccd80c9fd1e1cd4cda6d.tar.gz | |
MFp4:
On the KB9202 go ahead and enable the flash controller so the boot
loader can access the parallel flash.
Diffstat (limited to 'sys/boot/arm/at91')
| -rw-r--r-- | sys/boot/arm/at91/libat91/at91rm9200_lowlevel.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/sys/boot/arm/at91/libat91/at91rm9200_lowlevel.c b/sys/boot/arm/at91/libat91/at91rm9200_lowlevel.c index cd10d25..9e196d5 100644 --- a/sys/boot/arm/at91/libat91/at91rm9200_lowlevel.c +++ b/sys/boot/arm/at91/libat91/at91rm9200_lowlevel.c @@ -93,6 +93,18 @@ _init(void) while (!(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY)) continue; +#ifdef BOOT_KB9202 + // setup flash access (allow ample margin) + // 9 wait states, 1 setup, 1 hold, 1 float for 8-bit device + ((AT91PS_SMC2)AT91C_BASE_SMC2)->SMC2_CSR[0] = + AT91C_SMC2_WSEN | + (9 & AT91C_SMC2_NWS) | + ((1 << 8) & AT91C_SMC2_TDF) | + AT91C_SMC2_DBW_8 | + ((1 << 24) & AT91C_SMC2_RWSETUP) | + ((1 << 29) & AT91C_SMC2_RWHOLD); +#endif + // setup SDRAM access // EBI chip-select register (CS1 = SDRAM controller) // 9 col, 13row, 4 bank, CAS2 @@ -160,7 +172,7 @@ _init(void) AT91C_BASE_PIOA->PIO_PDR = AT91C_PA31_DTXD | AT91C_PA30_DRXD; pUSART->US_IDR = (unsigned int) -1; pUSART->US_CR = - AT91C_US_RSTRX | AT91C_US_RSTTX | AT91C_US_RXDIS | AT91C_US_TXDIS; + AT91C_US_RSTRX | AT91C_US_RSTTX | AT91C_US_RXDIS | AT91C_US_TXDIS; pUSART->US_BRGR = ((((AT91C_MASTER_CLOCK*10)/(BAUD*16))+5)/10); pUSART->US_TTGR = 0; pPDC->PDC_PTCR = AT91C_PDC_RXTDIS; |
