ppc4xx: Add support for ICON board (PPC440SPe)

[oweals/u-boot.git] / board / mosaixtech / icon / init.S

diff --git a/board/mosaixtech/icon/init.S b/board/mosaixtech/icon/init.S
new file mode 100644 (file)
index 0000000..70ed6ce
--- /dev/null
+++ b/board/mosaixtech/icon/init.S
@@ -0,0 +1,88 @@
+/*
+ * (C) Copyright 2009-2010
+ * Stefan Roese, DENX Software Engineering, sr@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
+ */
+
+#include <ppc_asm.tmpl>
+#include <config.h>
+#include <asm/mmu.h>
+
+/*
+ * TLB TABLE
+ *
+ * This table is used by the cpu boot code to setup the initial tlb
+ * entries. Rather than make broad assumptions in the cpu source tree,
+ * this table lets each board set things up however they like.
+ *
+ *  Pointer to the table is returned in r1
+ *
+ */
+
+       .section .bootpg,"ax"
+
+       .globl tlbtab
+tlbtab:
+       tlbtab_start
+
+       /*
+        * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to
+        * use the speed up boot process. It is patched after relocation to
+        * enable SA_I.
+        */
+       tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR,
+                4, AC_RWX | SA_G) /* TLB 0 */
+
+       /*
+        * TLB entries for SDRAM are not needed on this platform.
+        * They are dynamically generated in the SPD DDR(2) detection
+        * routine.
+        */
+
+       tlbentry(CONFIG_SYS_ISRAM_BASE, SZ_256K, 0x00000000, 4,
+                AC_RWX | SA_I)
+
+       tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_4K, 0xF0000000, 4,
+                AC_RW | SA_IG)
+
+       tlbentry(CONFIG_SYS_ACE_BASE, SZ_1K,
+                CONFIG_SYS_ACE_BASE_PHYS_L, CONFIG_SYS_ACE_BASE_PHYS_H,
+                AC_RW | SA_IG)
+
+       tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 0xC,
+                AC_RW | SA_IG)
+       tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x10000000, 0xC,
+                AC_RW | SA_IG)
+       tlbentry(CONFIG_SYS_PCIE_MEMBASE, SZ_256M, 0xB0000000, 0xD,
+                AC_RW | SA_IG)
+
+       tlbentry(CONFIG_SYS_PCIE0_CFGBASE, SZ_16M, 0x00000000, 0xD,
+                AC_RW | SA_IG)
+       tlbentry(CONFIG_SYS_PCIE1_CFGBASE, SZ_16M, 0x20000000, 0xD,
+                AC_RW | SA_IG)
+       tlbentry(CONFIG_SYS_PCIE2_CFGBASE, SZ_16M, 0x40000000, 0xD,
+                AC_RW | SA_IG)
+       tlbentry(CONFIG_SYS_PCIE0_XCFGBASE, SZ_1K, 0x10000000, 0xD,
+                AC_RW | SA_IG)
+       tlbentry(CONFIG_SYS_PCIE1_XCFGBASE, SZ_1K, 0x30000000, 0xD,
+                AC_RW | SA_IG)
+       tlbentry(CONFIG_SYS_PCIE2_XCFGBASE, SZ_1K, 0x50000000, 0xD,
+                AC_RW | SA_IG)
+       tlbtab_end