1 files changed, 99 insertions, 50 deletions

diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
index 32aa94b..4ef3c9a 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009 Freescale Semiconductor, Inc
+ * Copyright 2009-2011 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
@@ -21,59 +21,59 @@
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/fsl_law.h>
+#include <asm/io.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS)
-#ifdef CONFIG_FSL_CORENET
-static void setup_ccsrbar(void)
+#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT)
+void setup_ifc(void)
 {
-	u32 temp;
-	volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000);
-	volatile ccsr_local_t *ccm;
+	struct fsl_ifc *ifc_regs = (void *)CONFIG_SYS_IFC_ADDR;
+	u32 _mas0, _mas1, _mas2, _mas3, _mas7;
+	phys_addr_t flash_phys = CONFIG_SYS_FLASH_BASE_PHYS;
 
 	/*
-	 * We can't call set_law() because we haven't moved
-	 * CCSR yet.
+	 * Adjust the TLB we were running out of to match the phys addr of the
+	 * chip select we are adjusting and will return to.
 	 */
-	ccm = (void *)ccsr_virt;
-
-	out_be32(&ccm->law[0].lawbarh,
-		(u64)CONFIG_SYS_CCSRBAR_PHYS >> 32);
-	out_be32(&ccm->law[0].lawbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS);
-	out_be32(&ccm->law[0].lawar,
-		LAW_EN | (0x1e << 20) | LAW_SIZE_4K);
-
-	in_be32((u32 *)(ccsr_virt + 0));
-	in_be32((u32 *)(ccsr_virt + 1));
-	isync();
-
-	ccm = (void *)CONFIG_SYS_CCSRBAR;
-	/* Now use the temporary LAW to move CCSR */
-	out_be32(&ccm->ccsrbarh, (u64)CONFIG_SYS_CCSRBAR_PHYS >> 32);
-	out_be32(&ccm->ccsrbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS);
-	out_be32(&ccm->ccsrar, CCSRAR_C);
-	temp = in_be32(&ccm->ccsrar);
-	disable_law(0);
-}
-#else
-static void setup_ccsrbar(void)
-{
-	u32 temp;
-	volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000);
+	flash_phys += (~CONFIG_SYS_AMASK0) + 1 - 4*1024*1024;
+
+	_mas0 = MAS0_TLBSEL(1) | MAS0_ESEL(15);
+	_mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_IPROT |
+			MAS1_TSIZE(BOOKE_PAGESZ_4M);
+	_mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_TEXT_BASE, MAS2_I|MAS2_G);
+	_mas3 = FSL_BOOKE_MAS3(flash_phys, 0, MAS3_SW|MAS3_SR|MAS3_SX);
+	_mas7 = FSL_BOOKE_MAS7(flash_phys);
+
+	mtspr(MAS0, _mas0);
+	mtspr(MAS1, _mas1);
+	mtspr(MAS2, _mas2);
+	mtspr(MAS3, _mas3);
+	mtspr(MAS7, _mas7);
 
-	temp = in_be32(ccsr_virt);
-	out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12);
-	temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR);
+	asm volatile("isync;msync;tlbwe;isync");
+
+	out_be32(&(ifc_regs->cspr_cs[0].cspr), CONFIG_SYS_CSPR0);
+	out_be32(&(ifc_regs->csor_cs[0].csor), CONFIG_SYS_CSOR0);
+	out_be32(&(ifc_regs->amask_cs[0].amask), CONFIG_SYS_AMASK0);
+
+	return ;
 }
 #endif
-#endif
 
 /* We run cpu_init_early_f in AS = 1 */
 void cpu_init_early_f(void)
 {
 	u32 mas0, mas1, mas2, mas3, mas7;
 	int i;
+#ifdef CONFIG_SYS_FSL_ERRATUM_P1010_A003549
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+#endif
+#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT)
+	ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
+	u32  *l2srbar, *dst, *src;
+	void (*setup_ifc_sram)(void);
+#endif
 
 	/* Pointer is writable since we allocated a register for it */
 	gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
@@ -85,28 +85,77 @@ void cpu_init_early_f(void)
 	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);
+	mas0 = MAS0_TLBSEL(1) | MAS0_ESEL(13);
+	mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_1M);
 	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)
-	mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1);
-	/* mas1 is the same as above */
-	mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR + 0x1000, 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);
+/*
+ * Work Around for IFC Erratum A-003549. This issue is P1010
+ * specific. LCLK(a free running clk signal) is muxed with IFC_CS3 on P1010 SOC
+ * Hence specifically selecting CS3.
+ */
+#ifdef CONFIG_SYS_FSL_ERRATUM_P1010_A003549
+	setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_LCLK_IFC_CS3);
+#endif
+
+	init_laws();
+
+/*
+ * Work Around for IFC Erratum A003399, issue will hit only when execution
+ * from NOR Flash
+ */
+#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) && !defined(CONFIG_SYS_RAMBOOT)
+#define SRAM_BASE_ADDR	(0x00000000)
+	/* TLB for SRAM */
+	mas0 = MAS0_TLBSEL(1) | MAS0_ESEL(9);
+	mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS |
+		MAS1_TSIZE(BOOKE_PAGESZ_1M);
+	mas2 = FSL_BOOKE_MAS2(SRAM_BASE_ADDR, MAS2_I);
+	mas3 = FSL_BOOKE_MAS3(SRAM_BASE_ADDR, 0, MAS3_SX|MAS3_SW|MAS3_SR);
+	mas7 = FSL_BOOKE_MAS7(0);
 
 	write_tlb(mas0, mas1, mas2, mas3, mas7);
 
-	setup_ccsrbar();
+	out_be32(&l2cache->l2srbar0, SRAM_BASE_ADDR);
+
+	out_be32(&l2cache->l2errdis,
+		(MPC85xx_L2ERRDIS_MBECC | MPC85xx_L2ERRDIS_SBECC));
+
+	out_be32(&l2cache->l2ctl,
+		(MPC85xx_L2CTL_L2E | MPC85xx_L2CTL_L2SRAM_ENTIRE));
+
+	/*
+	 * Copy the code in setup_ifc to L2SRAM. Do a word copy
+	 * because NOR Flash on P1010 does not support byte
+	 * access (Erratum IFC-A002769)
+	 */
+	setup_ifc_sram = (void *)SRAM_BASE_ADDR;
+	dst = (u32 *) SRAM_BASE_ADDR;
+	src = (u32 *) setup_ifc;
+	for (i = 0; i < 1024; i++)
+		*l2srbar++ = *src++;
+
+	setup_ifc_sram();
+
+	/* CLEANUP */
+	clrbits_be32(&l2cache->l2ctl,
+			(MPC85xx_L2CTL_L2E |
+			 MPC85xx_L2CTL_L2SRAM_ENTIRE));
+	out_be32(&l2cache->l2srbar0, 0x0);
+#endif
+
+	invalidate_tlb(1);
+
+#if defined(CONFIG_SECURE_BOOT)
+	/* Disable the TLBs created by ISBC */
+	for (i = CONFIG_SYS_ISBC_START_TLB;
+	     i < CONFIG_SYS_ISBC_START_TLB + CONFIG_SYS_ISBC_NUM_TLBS; i++)
+			disable_tlb(i);
 #endif
 
-	init_laws();
-	invalidate_tlb(0);
 	init_tlbs();
 }