This patch adds the init and reset of cf card controllers.
Signed-off-by: Thomas Chou <tho...@wytron.com.tw>
---
board/altera/common/cfide.c | 79 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 79 insertions(+), 0 deletions(-)
create mode 100644 board/altera/common/cfide.c
diff --git a/board/altera/common/cfide.c b/board/altera/common/cfide.c
new file mode 100644
index 0000000..acd1e1d
--- /dev/null
+++ b/board/altera/common/cfide.c
@@ -0,0 +1,79 @@
+/*
+ * (C) Copyright 2005, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcn...@psyent.com>
+ * (C) Copyright 2010, Thomas Chou <tho...@wytron.com.tw>
+ *
+ * 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 <netdev.h>
+#include <asm/io.h>
+#include <nios2-io.h>
+
+#if defined(CONFIG_CMD_IDE) && defined(CONFIG_SYS_CF_CTL_BASE)
+/* ide_set_reset for Altera CF interface */
+#define ALTERA_CF_CTL_STATUS 0
+#define ALTERA_CF_IDE_CTL 4
+#define ALTERA_CF_CTL_STATUS_PRESENT_MSK (0x1)
+#define ALTERA_CF_CTL_STATUS_POWER_MSK (0x2)
+#define ALTERA_CF_CTL_STATUS_RESET_MSK (0x4)
+#define ALTERA_CF_CTL_STATUS_IRQ_EN_MSK (0x8)
+#define ALTERA_CF_IDE_CTL_IRQ_EN_MSK (0x1)
+
+void ide_set_reset(int idereset)
+{
+ if (idereset) {
+ writel(0, /* disable ide irq */
+ CONFIG_SYS_CF_CTL_BASE + ALTERA_CF_IDE_CTL);
+ writel(ALTERA_CF_CTL_STATUS_RESET_MSK, /* power down */
+ CONFIG_SYS_CF_CTL_BASE + ALTERA_CF_CTL_STATUS);
+ udelay(500 * 1000); /* 0.5 sec delay */
+ writel(ALTERA_CF_CTL_STATUS_POWER_MSK, /* power up */
+ CONFIG_SYS_CF_CTL_BASE + ALTERA_CF_CTL_STATUS);
+ udelay(500 * 1000); /* 0.5 sec delay */
+ }
+}
+#endif
+
+#if defined(CONFIG_CMD_IDE) && defined(CONFIG_SYS_CF_PRESENT)
+/* ide_preinit for PK1C20 */
+int ide_preinit(void)
+{
+ nios_pio_t *present = (nios_pio_t *) CONFIG_SYS_CF_PRESENT;
+ nios_pio_t *power = (nios_pio_t *) CONFIG_SYS_CF_POWER;
+ nios_pio_t *atasel = (nios_pio_t *) CONFIG_SYS_CF_ATASEL;
+
+ /* setup data direction registers */
+ present->direction = NIOS_PIO_IN;
+ power->direction = NIOS_PIO_OUT;
+ atasel->direction = NIOS_PIO_OUT;
+
+ /* Check for presence of card */
+ if (present->data)
+ return 1;
+ printf("Ok\n");
+
+ /* Finish setup */
+ power->data = 1; /* Turn on power FET */
+ atasel->data = 0; /* Put in ATA mode */
+
+ return 0;
+}
+#endif
--
1.6.6.1
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