* Add support for PPChameleon Eval Board

* Add support for P3G4 board

* Fix problem with MGT5100 FEC driver: add "early" MAC address
  initialization

1 files changed, 202 insertions, 0 deletions

diff --git a/board/dave/common/pci.c b/board/dave/common/pci.c
new file mode 100644
index 0000000..f8f180c
--- /dev/null
+++ b/board/dave/common/pci.c
@@ -0,0 +1,202 @@
+/*
+ * (C) Copyright 2001
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
+ *
+ * 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 <ppc4xx.h>
+#include <asm/processor.h>
+#include <pci.h>
+
+
+u_long pci9054_iobase;
+
+
+#define PCI_PRIMARY_CAR	(0x500000dc) /* PCI config address reg */
+#define PCI_PRIMARY_CDR	(0x80000000) /* PCI config data    reg */
+
+
+/*-----------------------------------------------------------------------------+
+|  Subroutine:  pci9054_read_config_dword
+|  Description: Read a PCI configuration register
+|  Inputs:
+|               hose            PCI Controller
+|               dev             PCI Bus+Device+Function number
+|               offset          Configuration register number
+|               value           Address of the configuration register value
+|  Return value:
+|               0               Successful
++-----------------------------------------------------------------------------*/
+int pci9054_read_config_dword(struct pci_controller *hose,
+			      pci_dev_t dev, int offset, u32* value)
+{
+  unsigned long      conAdrVal;
+  unsigned long      val;
+
+  /* generate coded value for CON_ADR register */
+  conAdrVal = dev | (offset & 0xfc) | 0x80000000;
+
+  /* Load the CON_ADR (CAR) value first, then read from CON_DATA (CDR) */
+  *(unsigned long *)PCI_PRIMARY_CAR = conAdrVal;
+
+  /* Note: *pResult comes back as -1 if machine check happened */
+  val = in32r(PCI_PRIMARY_CDR);
+
+  *value = (unsigned long) val;
+
+  out32r(PCI_PRIMARY_CAR, 0);
+
+  if ((*(unsigned long *)0x50000304) & 0x60000000)
+    {
+      /* clear pci master/target abort bits */
+      *(unsigned long *)0x50000304 = *(unsigned long *)0x50000304;
+    }
+
+  return 0;
+}
+
+/*-----------------------------------------------------------------------------+
+|  Subroutine:  pci9054_write_config_dword
+|  Description: Write a PCI configuration register.
+|  Inputs:
+|               hose            PCI Controller
+|               dev             PCI Bus+Device+Function number
+|               offset          Configuration register number
+|               Value           Configuration register value
+|  Return value:
+|               0               Successful
+| Updated for pass2 errata #6. Need to disable interrupts and clear the
+| PCICFGADR reg after writing the PCICFGDATA reg.
++-----------------------------------------------------------------------------*/
+int pci9054_write_config_dword(struct pci_controller *hose,
+			       pci_dev_t dev, int offset, u32 value)
+{
+  unsigned long      conAdrVal;
+
+  conAdrVal = dev | (offset & 0xfc) | 0x80000000;
+
+  *(unsigned long *)PCI_PRIMARY_CAR = conAdrVal;
+
+  out32r(PCI_PRIMARY_CDR, value);
+
+  out32r(PCI_PRIMARY_CAR, 0);
+
+  /* clear pci master/target abort bits */
+  *(unsigned long *)0x50000304 = *(unsigned long *)0x50000304;
+
+  return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+#ifdef CONFIG_DASA_SIM
+static void pci_dasa_sim_config_pci9054(struct pci_controller *hose, pci_dev_t dev,
+					struct pci_config_table *_)
+{
+  unsigned int iobase;
+  unsigned short status = 0;
+  unsigned char timer;
+
+  /*
+   * Configure PLX PCI9054
+   */
+  pci_read_config_word(CFG_PCI9054_DEV_FN, PCI_COMMAND, &status);
+  status |= PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
+  pci_write_config_word(CFG_PCI9054_DEV_FN, PCI_COMMAND, status);
+
+  /* Check the latency timer for values >= 0x60.
+   */
+  pci_read_config_byte(CFG_PCI9054_DEV_FN, PCI_LATENCY_TIMER, &timer);
+  if (timer < 0x60)
+    {
+      pci_write_config_byte(CFG_PCI9054_DEV_FN, PCI_LATENCY_TIMER, 0x60);
+    }
+
+  /* Set I/O base register.
+   */
+  pci_write_config_dword(CFG_PCI9054_DEV_FN, PCI_BASE_ADDRESS_0, CFG_PCI9054_IOBASE);
+  pci_read_config_dword(CFG_PCI9054_DEV_FN, PCI_BASE_ADDRESS_0, &iobase);
+
+  pci9054_iobase = pci_mem_to_phys(CFG_PCI9054_DEV_FN, iobase & PCI_BASE_ADDRESS_MEM_MASK);
+
+  if (pci9054_iobase == 0xffffffff)
+    {
+      printf("Error: Can not set I/O base register.\n");
+      return;
+    }
+}
+#endif
+
+static struct pci_config_table pci9054_config_table[] = {
+#ifndef CONFIG_PCI_PNP
+  { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
+    PCI_BUS(CFG_ETH_DEV_FN), PCI_DEV(CFG_ETH_DEV_FN), PCI_FUNC(CFG_ETH_DEV_FN),
+    pci_cfgfunc_config_device, { CFG_ETH_IOBASE,
+				 CFG_ETH_IOBASE,
+				 PCI_COMMAND_IO | PCI_COMMAND_MASTER }},
+#ifdef CONFIG_DASA_SIM
+  { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
+    PCI_BUS(CFG_PCI9054_DEV_FN), PCI_DEV(CFG_PCI9054_DEV_FN), PCI_FUNC(CFG_PCI9054_DEV_FN),
+    pci_dasa_sim_config_pci9054 },
+#endif
+#endif
+  { }
+};
+
+static struct pci_controller pci9054_hose = {
+  config_table: pci9054_config_table,
+};
+
+void pci_init(void)
+{
+  struct pci_controller *hose = &pci9054_hose;
+
+  /*
+   * Register the hose
+   */
+  hose->first_busno = 0;
+  hose->last_busno = 0xff;
+
+  /* System memory space */
+  pci_set_region(hose->regions + 0,
+		 0x00000000, 0x00000000, 0x01000000,
+		 PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+  /* PCI Memory space */
+  pci_set_region(hose->regions + 1,
+		 0x00000000, 0xc0000000, 0x10000000,
+		 PCI_REGION_MEM);
+
+  pci_set_ops(hose,
+	      pci_hose_read_config_byte_via_dword,
+	      pci_hose_read_config_word_via_dword,
+	      pci9054_read_config_dword,
+	      pci_hose_write_config_byte_via_dword,
+	      pci_hose_write_config_word_via_dword,
+	      pci9054_write_config_dword);
+
+  hose->region_count = 2;
+
+  pci_register_hose(hose);
+
+  hose->last_busno = pci_hose_scan(hose);
+}