diff options
Diffstat (limited to 'cpu/i386/sc520/sc520_ssi.c')
| -rw-r--r-- | cpu/i386/sc520/sc520_ssi.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/cpu/i386/sc520/sc520_ssi.c b/cpu/i386/sc520/sc520_ssi.c deleted file mode 100644 index 8dbe17aa60..0000000000 --- a/cpu/i386/sc520/sc520_ssi.c +++ /dev/null @@ -1,94 +0,0 @@ -/* - * (C) Copyright 2002 - * Daniel Engström, Omicron Ceti AB <daniel@omicron.se>. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* stuff specific for the sc520, but independent of implementation */ - -#include <common.h> -#include <asm/ic/ssi.h> -#include <asm/ic/sc520.h> - -int ssi_set_interface(int freq, int lsb_first, int inv_clock, int inv_phase) -{ - u8 temp=0; - - if (freq >= 8192) { - temp |= CTL_CLK_SEL_4; - } else if (freq >= 4096) { - temp |= CTL_CLK_SEL_8; - } else if (freq >= 2048) { - temp |= CTL_CLK_SEL_16; - } else if (freq >= 1024) { - temp |= CTL_CLK_SEL_32; - } else if (freq >= 512) { - temp |= CTL_CLK_SEL_64; - } else if (freq >= 256) { - temp |= CTL_CLK_SEL_128; - } else if (freq >= 128) { - temp |= CTL_CLK_SEL_256; - } else { - temp |= CTL_CLK_SEL_512; - } - - if (!lsb_first) { - temp |= MSBF_ENB; - } - - if (inv_clock) { - temp |= CLK_INV_ENB; - } - - if (inv_phase) { - temp |= PHS_INV_ENB; - } - - sc520_mmcr->ssictl = temp; - - return 0; -} - -u8 ssi_txrx_byte(u8 data) -{ - sc520_mmcr->ssixmit = data; - while (sc520_mmcr->ssista & SSISTA_BSY); - sc520_mmcr->ssicmd = SSICMD_CMD_SEL_XMITRCV; - while (sc520_mmcr->ssista & SSISTA_BSY); - - return sc520_mmcr->ssircv; -} - - -void ssi_tx_byte(u8 data) -{ - sc520_mmcr->ssixmit = data; - while (sc520_mmcr->ssista & SSISTA_BSY); - sc520_mmcr->ssicmd = SSICMD_CMD_SEL_XMIT; -} - -u8 ssi_rx_byte(void) -{ - while (sc520_mmcr->ssista & SSISTA_BSY); - sc520_mmcr->ssicmd = SSICMD_CMD_SEL_RCV; - while (sc520_mmcr->ssista & SSISTA_BSY); - - return sc520_mmcr->ssircv; -} |