ppc/85xx: Split out cpu_init_early into its own file for NAND_SPL

By pulling out cpu_init_early we can build just it and not all of
cpu_init for NAND_SPL.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

cpu/mpc85xx/Makefile

@@ -65,6 +65,7 @@ COBJS-$(CONFIG_CPM2)	+= serial_scc.o
 COBJS	= $(COBJS-y)
 COBJS	+= cpu.o
 COBJS	+= cpu_init.o
+COBJS	+= cpu_init_early.o
 COBJS	+= interrupts.o
 COBJS	+= speed.o
 COBJS	+= tlb.o

cpu/mpc85xx/cpu_init.c

@@ -129,57 +129,6 @@ void config_8560_ioports (volatile ccsr_cpm_t * cpm)
 }
 #endif
 
-/* We run cpu_init_early_f in AS = 1 */
-void cpu_init_early_f(void)
-{
-	u32 mas0, mas1, mas2, mas3, mas7;
-	int i;
-
-	/* Pointer is writable since we allocated a register for it */
-	gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
-
-	/*
-	 * Clear initial global data
-	 *   we don't use memset so we can share this code with NAND_SPL
-	 */
-	for (i = 0; i < sizeof(gd_t); i++)
-		((char *)gd)[i] = 0;
-
-	mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(0);
-	mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K);
-	mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G);
-	mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR);
-	mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_PHYS);
-
-	write_tlb(mas0, mas1, mas2, mas3, mas7);
-
-	/* set up CCSR if we want it moved */
-#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS)
-	{
-		u32 temp;
-		volatile u32 *ccsr_virt =
-			(volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000);
-
-		mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1);
-		/* mas1 is the same as above */
-		mas2 = FSL_BOOKE_MAS2((u32)ccsr_virt, MAS2_I|MAS2_G);
-		mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0,
-						MAS3_SW|MAS3_SR);
-		mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_DEFAULT);
-
-		write_tlb(mas0, mas1, mas2, mas3, mas7);
-
-		temp = in_be32(ccsr_virt);
-		out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12);
-		temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR);
-	}
-#endif
-
-	init_laws();
-	invalidate_tlb(0);
-	init_tlbs();
-}
-
 /*
  * Breathe some life into the CPU...
  *

cpu/mpc85xx/cpu_init_early.c

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc
+ *
+ * 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 <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/fsl_law.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* We run cpu_init_early_f in AS = 1 */
+void cpu_init_early_f(void)
+{
+	u32 mas0, mas1, mas2, mas3, mas7;
+	int i;
+
+	/* Pointer is writable since we allocated a register for it */
+	gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
+
+	/*
+	 * Clear initial global data
+	 *   we don't use memset so we can share this code with NAND_SPL
+	 */
+	for (i = 0; i < sizeof(gd_t); i++)
+		((char *)gd)[i] = 0;
+
+	mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(0);
+	mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K);
+	mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G);
+	mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR);
+	mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_PHYS);
+
+	write_tlb(mas0, mas1, mas2, mas3, mas7);
+
+	/* set up CCSR if we want it moved */
+#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS)
+	{
+		u32 temp;
+		volatile u32 *ccsr_virt =
+			(volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000);
+
+		mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1);
+		/* mas1 is the same as above */
+		mas2 = FSL_BOOKE_MAS2((u32)ccsr_virt, MAS2_I|MAS2_G);
+		mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0,
+						MAS3_SW|MAS3_SR);
+		mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_DEFAULT);
+
+		write_tlb(mas0, mas1, mas2, mas3, mas7);
+
+		temp = in_be32(ccsr_virt);
+		out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12);
+		temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR);
+	}
+#endif
+
+	init_laws();
+	invalidate_tlb(0);
+	init_tlbs();
+}