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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2008-03-31 01:32:15 +0200
committerWolfgang Denk <wd@denx.de>2008-04-13 23:08:40 -0700
commit61525f2ffa156665a66908fda47dbf29d65ea579 (patch)
tree1be3e24381f193707adb422e71d20adeeb0ce29d /board/linkstation/ide.c
parent0f3ba7e9783f352318f197a3148f6d5cc3d75bea (diff)
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Support for LinkStation / KuroBox HD and HG PPC models
This patch is based on the port by Mihai Georgian (see linkstation.c for Copyright information) and implements support for LinkStation / KuroBox HD and HG PPC models from Buffalo Technology, whereby HD is deactivated at the moment, pending network driver fixing. Notice to users: this is pretty much a barebone port. Support for network on HG models is already in the U-Boot mainline, but you might also want patches to switch fan / phy modes depending on the negotiated ethernet parameters. This patch also doesn't support console switching, booting EM mode, Buffalo specific ext2 magic number. So, if you want to use any of those, you need additional patches. Otherwise this patche provides a fully functional u-boot with a network console on your system. Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Diffstat (limited to 'board/linkstation/ide.c')
-rw-r--r--board/linkstation/ide.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/board/linkstation/ide.c b/board/linkstation/ide.c
new file mode 100644
index 0000000..37d9b57
--- /dev/null
+++ b/board/linkstation/ide.c
@@ -0,0 +1,99 @@
+/*
+ * (C) Copyright 2000
+ * 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
+ *
+ */
+/* ide.c - ide support functions */
+
+
+#include <common.h>
+
+#ifdef CONFIG_CMD_IDE
+#include <ata.h>
+#include <ide.h>
+#include <pci.h>
+
+#define IT8212_PCI_CpuCONTROL 0x5e
+#define IT8212_PCI_PciModeCONTROL 0x50
+#define IT8212_PCI_IdeIoCONFIG 0x40
+#define IT8212_PCI_IdeBusSkewCONTROL 0x4c
+#define IT8212_PCI_IdeDrivingCURRENT 0x42
+
+extern ulong ide_bus_offset[CFG_IDE_MAXBUS];
+extern struct pci_controller hose;
+
+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(PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, 0);
+ if (devbusfn == -1)
+ devbusfn = pci_find_device(PCI_VENDOR_ID_ITE,PCI_DEVICE_ID_ITE_8212,0);
+ if (devbusfn != -1) {
+ status = 0;
+
+ pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0,
+ (u32 *) &ide_bus_offset[0]);
+ ide_bus_offset[0] &= 0xfffffffe;
+ ide_bus_offset[0] = pci_hose_bus_to_phys(&hose,
+ ide_bus_offset[0] & 0xfffffffe,
+ PCI_REGION_IO);
+ pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_2,
+ (u32 *) &ide_bus_offset[1]);
+ ide_bus_offset[1] &= 0xfffffffe;
+ ide_bus_offset[1] = pci_hose_bus_to_phys(&hose,
+ ide_bus_offset[1] & 0xfffffffe,
+ PCI_REGION_IO);
+ }
+
+ if (pci_find_device (PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8212, 0) != -1) {
+ pci_write_config_byte(devbusfn, IT8212_PCI_CpuCONTROL, 0x01);
+ pci_write_config_byte(devbusfn, IT8212_PCI_PciModeCONTROL, 0x00);
+ pci_write_config_word(devbusfn, PCI_COMMAND, 0x0047);
+#ifdef CONFIG_IT8212_SECONDARY_ENABLE
+ pci_write_config_word(devbusfn, IT8212_PCI_IdeIoCONFIG, 0xA0F3);
+#else
+ pci_write_config_word(devbusfn, IT8212_PCI_IdeIoCONFIG, 0x8031);
+#endif
+ pci_write_config_dword(devbusfn, IT8212_PCI_IdeBusSkewCONTROL, 0x02040204);
+/* __LS_COMMENT__ BUFFALO changed 2004.11.10 changed for EMI */
+ pci_write_config_byte(devbusfn, IT8212_PCI_IdeDrivingCURRENT, 0x36); /* 10mA */
+/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x09); */ /* 4mA */
+/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x12); */ /* 6mA */
+/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x24); */ /* 6mA,2mA */
+/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x2D); */ /* 8mA,4mA */
+ pci_write_config_byte(devbusfn, PCI_LATENCY_TIMER, 0x00);
+ }
+
+ return (status);
+}
+
+void ide_set_reset (int flag) {
+ return;
+}
+
+#endif /* CONFIG_CMD_IDE */