Add support for Sil680 IDE controller.

o add drivers/sil680.c to support the Sil680 IDE-controller.
o drivers/Makefile: add sil680.o.

Signed-off-by: Gary Jennejohn <garyj@denx.de>

diff --git a/drivers/Makefile b/drivers/Makefile
index 3ee6312e9db2f02071ee173c4ac89905548482b8..6bf05ccad19696164b1f3f0a66b7812f39be659f 100755 (executable)
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -43,7 +43,7 @@ COBJS = 3c589.o 5701rls.o ali512x.o at45.o ata_piix.o atmel_usart.o \
          sed13806.o sed156x.o \
          serial.o serial_max3100.o \
          serial_pl010.o serial_pl011.o serial_xuartlite.o \
-         sl811_usb.o sm501.o smc91111.o smiLynxEM.o \
+         sil680.o sl811_usb.o sm501.o smc91111.o smiLynxEM.o \
          status_led.o sym53c8xx.o systemace.o ahci.o \
          ti_pci1410a.o tigon3.o tsec.o \
          tsi108_eth.o tsi108_i2c.o tsi108_pci.o \

diff --git a/drivers/sil680.c b/drivers/sil680.c
new file mode 100644 (file)
index 0000000..a6143df
--- /dev/null
+++ b/drivers/sil680.c
@@ -0,0 +1,110 @@
+/*
+ * (C) Copyright 2007
+ * Gary Jennejohn, DENX Software Engineering, garyj@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
+ *
+ */
+/* sil680.c - ide support functions for the Sil0680A controller */
+
+/*
+ * The following parameters must be defined in the configuration file
+ * of the target board:
+ *
+ * #define CFG_IDE_SIL680
+ *
+ * #define CONFIG_PCI_PNP
+ * NOTE it may also be necessary to define this if the default of 8 is
+ * incorrect for the target board (e.g. the sequoia board requires 0).
+ * #define CFG_PCI_CACHE_LINE_SIZE     0
+ *
+ * #define CONFIG_CMD_IDE
+ * #undef  CONFIG_IDE_8xx_DIRECT
+ * #undef  CONFIG_IDE_LED
+ * #undef  CONFIG_IDE_RESET
+ * #define CONFIG_IDE_PREINIT
+ * #define CFG_IDE_MAXBUS              2 - modify to suit
+ * #define CFG_IDE_MAXDEVICE   (CFG_IDE_MAXBUS*2) - modify to suit
+ * #define CFG_ATA_BASE_ADDR   0
+ * #define CFG_ATA_IDE0_OFFSET 0
+ * #define CFG_ATA_IDE1_OFFSET 0
+ * #define CFG_ATA_DATA_OFFSET 0
+ * #define CFG_ATA_REG_OFFSET  0
+ * #define CFG_ATA_ALT_OFFSET  0x0004
+ *
+ * The mapping for PCI IO-space.
+ * NOTE this is the value for the sequoia board. Modify to suit.
+ * #define CFG_PCI0_IO_SPACE   0xE8000000
+ */
+
+#include <common.h>
+#if defined(CFG_IDE_SIL680)
+#include <ata.h>
+#include <ide.h>
+#include <pci.h>
+
+extern ulong ide_bus_offset[CFG_IDE_MAXBUS];
+
+int ide_preinit (void)
+{
+       int status;
+       pci_dev_t devbusfn;
+       int l;
+
+       status = 1;
+       for (l = 0; l < CFG_IDE_MAXBUS; l++) {
+               ide_bus_offset[l] = -ATA_STATUS;
+       }
+       devbusfn = pci_find_device (0x1095, 0x0680, 0);
+       if (devbusfn != -1) {
+               status = 0;
+
+               pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0,
+                                      (u32 *) &ide_bus_offset[0]);
+               ide_bus_offset[0] &= 0xfffffff8;
+               ide_bus_offset[0] += CFG_PCI0_IO_SPACE;
+               pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_2,
+                                      (u32 *) &ide_bus_offset[1]);
+               ide_bus_offset[1] &= 0xfffffff8;
+               ide_bus_offset[1] += CFG_PCI0_IO_SPACE;
+               /* init various things - taken from the Linux driver */
+               /* set PIO mode */
+               pci_write_config_byte(devbusfn, 0x80, 0x00);
+               pci_write_config_byte(devbusfn, 0x84, 0x00);
+               /* IDE0 */
+               pci_write_config_byte(devbusfn,  0xA1, 0x02);
+               pci_write_config_word(devbusfn,  0xA2, 0x328A);
+               pci_write_config_dword(devbusfn, 0xA4, 0x62DD62DD);
+               pci_write_config_dword(devbusfn, 0xA8, 0x43924392);
+               pci_write_config_dword(devbusfn, 0xAC, 0x40094009);
+               /* IDE1 */
+               pci_write_config_byte(devbusfn,  0xB1, 0x02);
+               pci_write_config_word(devbusfn,  0xB2, 0x328A);
+               pci_write_config_dword(devbusfn, 0xB4, 0x62DD62DD);
+               pci_write_config_dword(devbusfn, 0xB8, 0x43924392);
+               pci_write_config_dword(devbusfn, 0xBC, 0x40094009);
+       }
+       return (status);
+}
+
+void ide_set_reset (int flag) {
+       return;
+}
+
+#endif /* CFG_IDE_SIL680 */