summaryrefslogtreecommitdiff
path: root/board/cpc45/plx9030.c
diff options
context:
space:
mode:
authorwdenk <wdenk>2003-03-12 10:41:04 +0000
committerwdenk <wdenk>2003-03-12 10:41:04 +0000
commit3bac351370ef7cbf9d2af27ba52bee1703ad677e (patch)
tree689fbd22fcde4e63a0f4909acb3ea65475099e9c /board/cpc45/plx9030.c
parent1cb8e980c41e86760fa93de63f4e4cf643bef9d9 (diff)
downloadu-boot-imx-3bac351370ef7cbf9d2af27ba52bee1703ad677e.zip
u-boot-imx-3bac351370ef7cbf9d2af27ba52bee1703ad677e.tar.gz
u-boot-imx-3bac351370ef7cbf9d2af27ba52bee1703ad677e.tar.bz2
* Patch by Josef Wagner, 12 Mar 2003:
- 16/32 MB and 50/80 MHz support with auto-detection for IP860 - ETH05 and BEDBUG support for CU824 - added support for MicroSys CPC45 - new BOOTROM/FLASH0 and DOC base for PM826 * Patch by Robert Schwebel, 12 Mar 2003: Fix the chpart command on innokom board * Name cleanup: mv include/asm-i386/ppcboot-i386.h include/asm-i386/u-boot-i386.h s/PPCBoot/U-Boot/ in some files s/pImage/uImage/ in some files * Patch by Detlev Zundel, 15 Jan 2003: Fix '' command line quoting * Patch by The LEOX team, 19 Jan 2003: - add support for the ELPT860 board - add support for Dallas ds164x RTC
Diffstat (limited to 'board/cpc45/plx9030.c')
-rw-r--r--board/cpc45/plx9030.c174
1 files changed, 174 insertions, 0 deletions
diff --git a/board/cpc45/plx9030.c b/board/cpc45/plx9030.c
new file mode 100644
index 0000000..e337bd2
--- /dev/null
+++ b/board/cpc45/plx9030.c
@@ -0,0 +1,174 @@
+/* Plx9030.c - system configuration module for PLX9030 PCI to Local Bus Bridge */
+/*
+ * (C) Copyright 2002-2003
+ * Josef Wagner, MicroSys GmbH, wagner@microsys.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
+ *
+ * Date Modification by
+ * ------- ---------------------------------------------- ---
+ * 30sep02 converted from VxWorks to LINUX wa
+*/
+
+
+/*
+DESCRIPTION
+
+This is the configuration module for the PLX9030 PCI to Local Bus Bridge.
+It configures the Chip select lines for SRAM (CS0), ST16C552 (CS1,CS2), Display and local
+registers (CS3) on CPC45.
+*/
+
+/* includes */
+
+#include <common.h>
+#include <malloc.h>
+#include <net.h>
+#include <asm/io.h>
+#include <pci.h>
+
+/* imports */
+
+
+/* defines */
+#define PLX9030_VENDOR_ID 0x10B5
+#define PLX9030_DEVICE_ID 0x9030
+
+#undef PLX_DEBUG
+
+/* PLX9030 register offsets */
+#define P9030_LAS0RR 0x00
+#define P9030_LAS1RR 0x04
+#define P9030_LAS2RR 0x08
+#define P9030_LAS3RR 0x0c
+#define P9030_EROMRR 0x10
+#define P9030_LAS0BA 0x14
+#define P9030_LAS1BA 0x18
+#define P9030_LAS2BA 0x1c
+#define P9030_LAS3BA 0x20
+#define P9030_EROMBA 0x24
+#define P9030_LAS0BRD 0x28
+#define P9030_LAS1BRD 0x2c
+#define P9030_LAS2BRD 0x30
+#define P9030_LAS3BRD 0x34
+#define P9030_EROMBRD 0x38
+#define P9030_CS0BASE 0x3C
+#define P9030_CS1BASE 0x40
+#define P9030_CS2BASE 0x44
+#define P9030_CS3BASE 0x48
+#define P9030_INTCSR 0x4c
+#define P9030_CNTRL 0x50
+#define P9030_GPIOC 0x54
+
+/* typedefs */
+
+
+/* locals */
+
+static struct pci_device_id supported[] = {
+ { PLX9030_VENDOR_ID, PLX9030_DEVICE_ID },
+ { }
+};
+
+/* forward declarations */
+void sysOutLong(ulong address, ulong value);
+
+
+/***************************************************************************
+*
+* Plx9030Init - init CS0..CS3 for CPC45
+*
+*
+* RETURNS: N/A
+*/
+
+void Plx9030Init (void)
+{
+ pci_dev_t devno;
+ ulong membaseCsr; /* base address of device memory space */
+ int idx = 0; /* general index */
+
+
+ /* find plx9030 device */
+
+ if ((devno = pci_find_devices(supported, idx++)) < 0)
+ {
+ printf("No PLX9030 device found !!\n");
+ return;
+ }
+
+
+#ifdef PLX_DEBUG
+ printf("PLX 9030 device found ! devno = 0x%x\n",devno);
+#endif
+
+ membaseCsr = PCI_PLX9030_MEMADDR;
+
+ /* set base address */
+ pci_write_config_dword(devno, PCI_BASE_ADDRESS_0, membaseCsr);
+
+ /* enable mapped memory and IO addresses */
+ pci_write_config_dword(devno,
+ PCI_COMMAND,
+ PCI_COMMAND_MEMORY |
+ PCI_COMMAND_MASTER);
+
+
+ /* configure GBIOC */
+ sysOutLong((membaseCsr + P9030_GPIOC), 0x00000FC0); /* CS2/CS3 enable */
+
+ /* configure CS0 (SRAM) */
+ sysOutLong((membaseCsr + P9030_LAS0BA), 0x00000001); /* enable space base */
+ sysOutLong((membaseCsr + P9030_LAS0RR), 0x0FE00000); /* 2 MByte */
+ sysOutLong((membaseCsr + P9030_LAS0BRD), 0x51928900); /* 4 wait states */
+ sysOutLong((membaseCsr + P9030_CS0BASE), 0x00100001); /* enable 2 MByte */
+ /* remap CS0 (SRAM) */
+ pci_write_config_dword(devno, PCI_BASE_ADDRESS_2, SRAM_BASE);
+
+ /* configure CS1 (ST16552 / CHAN A) */
+ sysOutLong((membaseCsr + P9030_LAS1BA), 0x00400001); /* enable space base */
+ sysOutLong((membaseCsr + P9030_LAS1RR), 0x0FFFFF00); /* 256 byte */
+ sysOutLong((membaseCsr + P9030_LAS1BRD), 0x55122900); /* 4 wait states */
+ sysOutLong((membaseCsr + P9030_CS1BASE), 0x00400081); /* enable 256 Byte */
+ /* remap CS1 (ST16552 / CHAN A) */
+ /* remap CS1 (ST16552 / CHAN A) */
+ pci_write_config_dword(devno, PCI_BASE_ADDRESS_3, ST16552_A_BASE);
+
+ /* configure CS2 (ST16552 / CHAN B) */
+ sysOutLong((membaseCsr + P9030_LAS2BA), 0x00800001); /* enable space base */
+ sysOutLong((membaseCsr + P9030_LAS2RR), 0x0FFFFF00); /* 256 byte */
+ sysOutLong((membaseCsr + P9030_LAS2BRD), 0x55122900); /* 4 wait states */
+ sysOutLong((membaseCsr + P9030_CS2BASE), 0x00800081); /* enable 256 Byte */
+ /* remap CS2 (ST16552 / CHAN B) */
+ pci_write_config_dword(devno, PCI_BASE_ADDRESS_4, ST16552_B_BASE);
+
+ /* configure CS3 (BCSR) */
+ sysOutLong((membaseCsr + P9030_LAS3BA), 0x00C00001); /* enable space base */
+ sysOutLong((membaseCsr + P9030_LAS3RR), 0x0FFFFF00); /* 256 byte */
+ sysOutLong((membaseCsr + P9030_LAS3BRD), 0x55357A80); /* 9 wait states */
+ sysOutLong((membaseCsr + P9030_CS3BASE), 0x00C00081); /* enable 256 Byte */
+ /* remap CS3 (DISPLAY and BCSR) */
+ pci_write_config_dword(devno, PCI_BASE_ADDRESS_5, BCSR_BASE);
+}
+
+void sysOutLong(ulong address, ulong value)
+{
+ *(ulong*)address = cpu_to_le32(value);
+}
+