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POWERPC 82xx: add the SCC as an HDLC controller 

Right now this is only used by keymile.

Signed-off-by: Gary Jennejohn <garyj@denx.de>
utp
Gary Jennejohn 2008-11-20 11:37:26 +01:00 committed by Wolfgang Denk
parent 1e8f4e78ca
commit 0c0ccf401e
1 changed files with 28 additions and 0 deletions
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28
include/asm-ppc/cpm_8260.h
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@ -546,6 +546,34 @@ typedef struct scc_trans {
#define BD_SCC_TX_LAST ((ushort)0x0800)
/* SCC as HDLC controller - taken from commproc.h
*/
typedef struct scc_hdlc {
sccp_t sh_genscc;
/*
* HDLC specific parameter RAM
*/
uchar res[4]; /* reserved */
ulong sh_cmask; /* CRC constant */
ulong sh_cpres; /* CRC preset */
ushort sh_disfc; /* discarded frame counter */
ushort sh_crcec; /* CRC error counter */
ushort sh_abtsc; /* abort sequence counter */
ushort sh_nmarc; /* nonmatching address rx cnt */
ushort sh_retrc; /* frame retransmission cnt */
ushort sh_mflr; /* maximum frame length reg */
ushort sh_maxcnt; /* maximum length counter */
ushort sh_rfthr; /* received frames threshold */
ushort sh_rfcnt; /* received frames count */
ushort sh_hmask; /* user defined frm addr mask */
ushort sh_haddr1; /* user defined frm address 1 */
ushort sh_haddr2; /* user defined frm address 2 */
ushort sh_haddr3; /* user defined frm address 3 */
ushort sh_haddr4; /* user defined frm address 4 */
ushort tmp; /* temp */
ushort tmp_mb; /* temp */
} scc_hdlc_t;
/* How about some FCCs.....
*/
#define FCC_GFMR_DIAG_NORM ((uint)0x00000000)