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-rw-r--r--board/altera/common/flash.c192
-rw-r--r--board/altera/common/sevenseg.c220
-rw-r--r--board/altera/common/sevenseg.h142
3 files changed, 554 insertions, 0 deletions
diff --git a/board/altera/common/flash.c b/board/altera/common/flash.c
new file mode 100644
index 0000000..0fa74ab
--- /dev/null
+++ b/board/altera/common/flash.c
@@ -0,0 +1,192 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ */
+
+
+#include <common.h>
+#include <nios.h>
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+/*--------------------------------------------------------------------*/
+void flash_print_info (flash_info_t * info)
+{
+ int i, k;
+ unsigned long size;
+ int erased;
+ volatile unsigned char *flash;
+
+ printf (" Size: %ld KB in %d Sectors\n",
+ info->size >> 10, info->sector_count);
+ printf (" Sector Start Addresses:");
+ for (i = 0; i < info->sector_count; ++i) {
+
+ /* Check if whole sector is erased */
+ if (i != (info->sector_count - 1))
+ size = info->start[i + 1] - info->start[i];
+ else
+ size = info->start[0] + info->size - info->start[i];
+ erased = 1;
+ flash = (volatile unsigned char *) info->start[i];
+ for (k = 0; k < size; k++) {
+ if (*flash++ != 0xff) {
+ erased = 0;
+ break;
+ }
+ }
+
+ /* Print the info */
+ if ((i % 5) == 0)
+ printf ("\n ");
+ printf (" %08lX%s%s", info->start[i], erased ? " E" : " ",
+ info->protect[i] ? "RO " : " ");
+ }
+ printf ("\n");
+}
+
+/*-------------------------------------------------------------------*/
+
+
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+ volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
+ volatile CFG_FLASH_WORD_SIZE *addr2;
+ int prot, sect;
+ int any = 0;
+ unsigned oldpri;
+ ulong start;
+
+ /* Some sanity checking */
+ if ((s_first < 0) || (s_first > s_last)) {
+ printf ("- no sectors to erase\n");
+ return 1;
+ }
+
+ prot = 0;
+ for (sect = s_first; sect <= s_last; ++sect) {
+ if (info->protect[sect]) {
+ prot++;
+ }
+ }
+ if (prot) {
+ printf ("- Warning: %d protected sectors will not be erased!\n",
+ prot);
+ } else {
+ printf ("\n");
+ }
+
+ /* NOTE: disabling interrupts on Nios can be very bad since it
+ * also disables the LO_LIMIT exception. It's better here to
+ * set the interrupt priority to 3 & restore it when we're done.
+ */
+ oldpri = ipri (3);
+
+ /* It's ok to erase multiple sectors provided we don't delay more
+ * than 50 usec between cmds ... at which point the erase time-out
+ * occurs. So don't go and put printf() calls in the loop ... it
+ * won't be very helpful ;-)
+ */
+ for (sect = s_first; sect <= s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
+ *addr = 0xaa;
+ *addr = 0x55;
+ *addr = 0x80;
+ *addr = 0xaa;
+ *addr = 0x55;
+ *addr2 = 0x30;
+ any = 1;
+ }
+ }
+
+ /* Now just wait for 0xff & provide some user feedback while
+ * we wait.
+ */
+ if (any) {
+ addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
+ start = get_timer (0);
+ while (*addr2 != 0xff) {
+ udelay (1000 * 1000);
+ putc ('.');
+ if (get_timer (start) > CFG_FLASH_ERASE_TOUT) {
+ printf ("timeout\n");
+ return 1;
+ }
+ }
+ printf ("\n");
+ }
+
+ /* Restore interrupt priority */
+ ipri (oldpri);
+
+ return 0;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+
+ vu_char *cmd = (vu_char *) info->start[0];
+ vu_char *dst = (vu_char *) addr;
+ unsigned char b;
+ unsigned oldpri;
+ ulong start;
+
+ while (cnt) {
+ /* Check for sufficient erase */
+ b = *src;
+ if ((*dst & b) != b) {
+ printf ("%02x : %02x\n", *dst, b);
+ return (2);
+ }
+
+ /* Disable interrupts other than window underflow
+ * (interrupt priority 2)
+ */
+ oldpri = ipri (3);
+ *cmd = 0xaa;
+ *cmd = 0x55;
+ *cmd = 0xa0;
+ *dst = b;
+
+ /* Verify write */
+ start = get_timer (0);
+ while (*dst != b) {
+ if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
+ ipri (oldpri);
+ return 1;
+ }
+ }
+ dst++;
+ src++;
+ cnt--;
+ ipri (oldpri);
+ }
+
+ return (0);
+}
diff --git a/board/altera/common/sevenseg.c b/board/altera/common/sevenseg.c
new file mode 100644
index 0000000..fecfbd3
--- /dev/null
+++ b/board/altera/common/sevenseg.c
@@ -0,0 +1,220 @@
+/*
+ * (C) Copyright 2003, Li-Pro.Net <www.li-pro.net>
+ * Stephan Linz <linz@li-pro.net>
+ *
+ * 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
+ *
+ * common/sevenseg.c
+ *
+ * NIOS PIO based seven segment led support functions
+ */
+
+#include <common.h>
+#include <nios-io.h>
+
+#ifdef CONFIG_SEVENSEG
+
+#define SEVENDEG_MASK_DP ((SEVENSEG_DIGIT_DP << 8) | SEVENSEG_DIGIT_DP)
+
+#ifdef SEVENSEG_WRONLY /* emulate read access */
+#if (SEVENSEG_ACTIVE == 0)
+static unsigned int sevenseg_portval = ~0;
+#else
+static unsigned int sevenseg_portval = 0;
+#endif
+#endif
+
+static int sevenseg_init_done = 0;
+
+static inline void __sevenseg_set_masked (unsigned int mask, int value)
+{
+ nios_pio_t *piop = (nios_pio_t*)SEVENSEG_BASE;
+
+#ifdef SEVENSEG_WRONLY /* emulate read access */
+
+#if (SEVENSEG_ACTIVE == 0)
+ if (value)
+ sevenseg_portval &= ~mask;
+ else
+ sevenseg_portval |= mask;
+#else
+ if (value)
+ sevenseg_portval |= mask;
+ else
+ sevenseg_portval &= ~mask;
+#endif
+
+ piop->data = sevenseg_portval;
+
+#else /* !SEVENSEG_WRONLY */
+
+#if (SEVENSEG_ACTIVE == 0)
+ if (value)
+ piop->data &= ~mask;
+ else
+ piop->data |= mask;
+#else
+ if (value)
+ piop->data |= mask;
+ else
+ piop->data &= ~mask;
+#endif
+
+#endif /* SEVENSEG_WRONLY */
+}
+
+static inline void __sevenseg_toggle_masked (unsigned int mask)
+{
+ nios_pio_t *piop = (nios_pio_t*)SEVENSEG_BASE;
+
+#ifdef SEVENSEG_WRONLY /* emulate read access */
+
+ sevenseg_portval ^= mask;
+ piop->data = sevenseg_portval;
+
+#else /* !SEVENSEG_WRONLY */
+
+ piop->data ^= mask;
+
+#endif /* SEVENSEG_WRONLY */
+}
+
+static inline void __sevenseg_set (unsigned int value)
+{
+ nios_pio_t *piop = (nios_pio_t*)SEVENSEG_BASE;
+
+#ifdef SEVENSEG_WRONLY /* emulate read access */
+
+#if (SEVENSEG_ACTIVE == 0)
+ sevenseg_portval = (sevenseg_portval & SEVENDEG_MASK_DP)
+ | ((~value) & (~SEVENDEG_MASK_DP));
+#else
+ sevenseg_portval = (sevenseg_portval & SEVENDEG_MASK_DP)
+ | (value);
+#endif
+
+ piop->data = sevenseg_portval;
+
+#else /* !SEVENSEG_WRONLY */
+
+#if (SEVENSEG_ACTIVE == 0)
+ piop->data = (piop->data & SEVENDEG_MASK_DP)
+ | ((~value) & (~SEVENDEG_MASK_DP));
+#else
+ piop->data = (piop->data & SEVENDEG_MASK_DP)
+ | (value);
+#endif
+
+#endif /* SEVENSEG_WRONLY */
+}
+
+static inline void __sevenseg_init (void)
+{
+ nios_pio_t *piop = (nios_pio_t*)SEVENSEG_BASE;
+
+ __sevenseg_set(0);
+
+#ifndef SEVENSEG_WRONLY /* setup direction */
+
+ piop->direction |= mask;
+
+#endif /* SEVENSEG_WRONLY */
+}
+
+
+void sevenseg_set(int value)
+{
+ unsigned char digits[] = {
+ SEVENSEG_DIGITS_0,
+ SEVENSEG_DIGITS_1,
+ SEVENSEG_DIGITS_2,
+ SEVENSEG_DIGITS_3,
+ SEVENSEG_DIGITS_4,
+ SEVENSEG_DIGITS_5,
+ SEVENSEG_DIGITS_6,
+ SEVENSEG_DIGITS_7,
+ SEVENSEG_DIGITS_8,
+ SEVENSEG_DIGITS_9,
+ SEVENSEG_DIGITS_A,
+ SEVENSEG_DIGITS_B,
+ SEVENSEG_DIGITS_C,
+ SEVENSEG_DIGITS_D,
+ SEVENSEG_DIGITS_E,
+ SEVENSEG_DIGITS_F
+ };
+
+ if (!sevenseg_init_done) {
+ __sevenseg_init();
+ sevenseg_init_done++;
+ }
+
+ switch (value & SEVENSEG_MASK_CTRL) {
+
+ case SEVENSEG_RAW:
+ __sevenseg_set( (
+ (digits[((value & SEVENSEG_MASK_VAL) >> 4)] << 8) |
+ digits[((value & SEVENSEG_MASK_VAL) & 0xf)] ) );
+ return;
+ break; /* paranoia */
+
+ case SEVENSEG_OFF:
+ __sevenseg_set(0);
+ __sevenseg_set_masked(SEVENDEG_MASK_DP, 0);
+ return;
+ break; /* paranoia */
+
+ case SEVENSEG_SET_DPL:
+ __sevenseg_set_masked(SEVENSEG_DIGIT_DP, 1);
+ return;
+ break; /* paranoia */
+
+ case SEVENSEG_SET_DPH:
+ __sevenseg_set_masked((SEVENSEG_DIGIT_DP << 8), 1);
+ return;
+ break; /* paranoia */
+
+ case SEVENSEG_RES_DPL:
+ __sevenseg_set_masked(SEVENSEG_DIGIT_DP, 0);
+ return;
+ break; /* paranoia */
+
+ case SEVENSEG_RES_DPH:
+ __sevenseg_set_masked((SEVENSEG_DIGIT_DP << 8), 0);
+ return;
+ break; /* paranoia */
+
+ case SEVENSEG_TOG_DPL:
+ __sevenseg_toggle_masked(SEVENSEG_DIGIT_DP);
+ return;
+ break; /* paranoia */
+
+ case SEVENSEG_TOG_DPH:
+ __sevenseg_toggle_masked((SEVENSEG_DIGIT_DP << 8));
+ return;
+ break; /* paranoia */
+
+ case SEVENSEG_LO:
+ case SEVENSEG_HI:
+ case SEVENSEG_STR:
+ default:
+ break;
+ }
+}
+
+#endif /* CONFIG_SEVENSEG */
diff --git a/board/altera/common/sevenseg.h b/board/altera/common/sevenseg.h
new file mode 100644
index 0000000..cbfd2e7
--- /dev/null
+++ b/board/altera/common/sevenseg.h
@@ -0,0 +1,142 @@
+/*
+ * (C) Copyright 2003, Li-Pro.Net <www.li-pro.net>
+ * Stephan Linz <linz@li-pro.net>
+ *
+ * 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
+ *
+ * common/sevenseg.h
+ *
+ * NIOS PIO based seven segment led support functions
+ */
+
+#ifndef __DK1S10_SEVENSEG_H__
+#define __DK1S10_SEVENSEG_H__
+
+#ifdef CONFIG_SEVENSEG
+
+/*
+ * 15 8 7 0
+ * |-----------------------|--------|
+ * | controll value | value |
+ * ----------------------------------
+ */
+#define SEVENSEG_RAW (int)(0) /* write out byte value (hex) */
+#define SEVENSEG_OFF (int)( 1 << 8) /* display switch off */
+#define SEVENSEG_SET_DPL (int)( 2 << 8) /* set dp low nibble */
+#define SEVENSEG_SET_DPH (int)( 3 << 8) /* set dp high nibble */
+#define SEVENSEG_RES_DPL (int)( 4 << 8) /* reset dp low nibble */
+#define SEVENSEG_RES_DPH (int)( 5 << 8) /* reset dp high nibble */
+#define SEVENSEG_TOG_DPL (int)( 6 << 8) /* toggle dp low nibble */
+#define SEVENSEG_TOG_DPH (int)( 7 << 8) /* toggle dp high nibble */
+#define SEVENSEG_LO (int)( 8 << 8) /* write out low nibble only */
+#define SEVENSEG_HI (int)( 9 << 8) /* write out high nibble only */
+#define SEVENSEG_STR (int)(10 << 8) /* write out a string */
+
+#define SEVENSEG_MASK_VAL (0xff) /* only used by SEVENSEG_RAW */
+#define SEVENSEG_MASK_CTRL (~SEVENSEG_MASK_VAL)
+
+#ifdef SEVENSEG_DIGIT_HI_LO_EQUAL
+
+#define SEVENSEG_DIGITS_0 ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_F )
+#define SEVENSEG_DIGITS_1 ( SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_C )
+#define SEVENSEG_DIGITS_2 ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_3 ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_4 ( SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_F \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_5 ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_F \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_6 ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_F \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_7 ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_C )
+#define SEVENSEG_DIGITS_8 ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_F \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_9 ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_F \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_A ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_F \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_B ( SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_F \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_C ( SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_D ( SEVENSEG_DIGIT_B \
+ | SEVENSEG_DIGIT_C \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_E ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_D \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_F \
+ | SEVENSEG_DIGIT_G )
+#define SEVENSEG_DIGITS_F ( SEVENSEG_DIGIT_A \
+ | SEVENSEG_DIGIT_E \
+ | SEVENSEG_DIGIT_F \
+ | SEVENSEG_DIGIT_G )
+
+#else /* !SEVENSEG_DIGIT_HI_LO_EQUAL */
+#error SEVENSEG: different pin asssignments not supported
+#endif
+
+void sevenseg_set(int value);
+
+#endif /* CONFIG_SEVENSEG */
+
+#endif /* __DK1S10_SEVENSEG_H__ */
generated by cgit v1.1 at 2024-11-02 11:11:38 +0000