arm64: Remove non-full-va map code

By now the code to only have a single page table level with 64k page
size and 42 bit address space is no longer used by any board in tree,
so we can safely remove it.

To clean up code, move the layerscape mmu code to the new defines,
removing redundant field definitions.

Signed-off-by: Alexander Graf <agraf@suse.de>

2 files changed, 32 insertions, 95 deletions

diff --git a/arch/arm/cpu/armv8/cache_v8.c b/arch/arm/cpu/armv8/cache_v8.c
index 55c6f2f259..df15e0066d 100644
--- a/arch/arm/cpu/armv8/cache_v8.c
+++ b/arch/arm/cpu/armv8/cache_v8.c
@@ -35,7 +35,6 @@ DECLARE_GLOBAL_DATA_PTR;
  *    off:          FFF
  */
 
-#ifdef CONFIG_SYS_FULL_VA
 static u64 get_tcr(int el, u64 *pips, u64 *pva_bits)
 {
 	u64 max_addr = 0;
@@ -386,38 +385,11 @@ static void setup_all_pgtables(void)
 	gd->arch.tlb_addr = tlb_addr;
 }
 
-#else
-
-inline void set_pgtable_section(u64 *page_table, u64 index, u64 section,
-			 u64 memory_type, u64 attribute)
-{
-	u64 value;
-
-	value = section | PMD_TYPE_SECT | PMD_SECT_AF;
-	value |= PMD_ATTRINDX(memory_type);
-	value |= attribute;
-	page_table[index] = value;
-}
-
-inline void set_pgtable_table(u64 *page_table, u64 index, u64 *table_addr)
-{
-	u64 value;
-
-	value = (u64)table_addr | PMD_TYPE_TABLE;
-	page_table[index] = value;
-}
-#endif
-
 /* to activate the MMU we need to set up virtual memory */
 __weak void mmu_setup(void)
 {
-#ifndef CONFIG_SYS_FULL_VA
-	bd_t *bd = gd->bd;
-	u64 *page_table = (u64 *)gd->arch.tlb_addr, i, j;
-#endif
 	int el;
 
-#ifdef CONFIG_SYS_FULL_VA
 	/* Set up page tables only once */
 	if (!gd->arch.tlb_fillptr)
 		setup_all_pgtables();
@@ -425,40 +397,6 @@ __weak void mmu_setup(void)
 	el = current_el();
 	set_ttbr_tcr_mair(el, gd->arch.tlb_addr, get_tcr(el, NULL, NULL),
 			  MEMORY_ATTRIBUTES);
-#else
-	/* Setup an identity-mapping for all spaces */
-	for (i = 0; i < (PGTABLE_SIZE >> 3); i++) {
-		set_pgtable_section(page_table, i, i << SECTION_SHIFT,
-				    MT_DEVICE_NGNRNE, PMD_SECT_NON_SHARE);
-	}
-
-	/* Setup an identity-mapping for all RAM space */
-	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
-		ulong start = bd->bi_dram[i].start;
-		ulong end = bd->bi_dram[i].start + bd->bi_dram[i].size;
-		for (j = start >> SECTION_SHIFT;
-		     j < end >> SECTION_SHIFT; j++) {
-			set_pgtable_section(page_table, j, j << SECTION_SHIFT,
-					    MT_NORMAL, PMD_SECT_NON_SHARE);
-		}
-	}
-
-	/* load TTBR0 */
-	el = current_el();
-	if (el == 1) {
-		set_ttbr_tcr_mair(el, gd->arch.tlb_addr,
-				  TCR_EL1_RSVD | TCR_FLAGS | TCR_EL1_IPS_BITS,
-				  MEMORY_ATTRIBUTES);
-	} else if (el == 2) {
-		set_ttbr_tcr_mair(el, gd->arch.tlb_addr,
-				  TCR_EL2_RSVD | TCR_FLAGS | TCR_EL2_IPS_BITS,
-				  MEMORY_ATTRIBUTES);
-	} else {
-		set_ttbr_tcr_mair(el, gd->arch.tlb_addr,
-				  TCR_EL3_RSVD | TCR_FLAGS | TCR_EL3_IPS_BITS,
-				  MEMORY_ATTRIBUTES);
-	}
-#endif
 
 	/* enable the mmu */
 	set_sctlr(get_sctlr() | CR_M);
@@ -544,33 +482,6 @@ u64 *__weak arch_get_page_table(void) {
 	return NULL;
 }
 
-#ifndef CONFIG_SYS_FULL_VA
-void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size,
-				     enum dcache_option option)
-{
-	u64 *page_table = arch_get_page_table();
-	u64 upto, end;
-
-	if (page_table == NULL)
-		return;
-
-	end = ALIGN(start + size, (1 << MMU_SECTION_SHIFT)) >>
-	      MMU_SECTION_SHIFT;
-	start = start >> MMU_SECTION_SHIFT;
-	for (upto = start; upto < end; upto++) {
-		page_table[upto] &= ~PMD_ATTRINDX_MASK;
-		page_table[upto] |= PMD_ATTRINDX(option);
-	}
-	asm volatile("dsb sy");
-	__asm_invalidate_tlb_all();
-	asm volatile("dsb sy");
-	asm volatile("isb");
-	start = start << MMU_SECTION_SHIFT;
-	end = end << MMU_SECTION_SHIFT;
-	flush_dcache_range(start, end);
-	asm volatile("dsb sy");
-}
-#else
 static bool is_aligned(u64 addr, u64 size, u64 align)
 {
 	return !(addr & (align - 1)) && !(size & (align - 1));
@@ -652,7 +563,6 @@ void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size,
 	 */
 	flush_dcache_range(real_start, real_start + real_size);
 }
-#endif
 
 #else	/* CONFIG_SYS_DCACHE_OFF */
 
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
index 6ea28ed5cb..7404bd932a 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
@@ -26,6 +26,14 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+static struct mm_region layerscape_mem_map[] = {
+	{
+		/* List terminator */
+		0,
+	}
+};
+struct mm_region *mem_map = layerscape_mem_map;
+
 void cpu_name(char *name)
 {
 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
@@ -48,6 +56,25 @@ void cpu_name(char *name)
 }
 
 #ifndef CONFIG_SYS_DCACHE_OFF
+static void set_pgtable_section(u64 *page_table, u64 index, u64 section,
+			u64 memory_type, u64 attribute)
+{
+       u64 value;
+
+       value = section | PTE_TYPE_BLOCK | PTE_BLOCK_AF;
+       value |= PMD_ATTRINDX(memory_type);
+       value |= attribute;
+       page_table[index] = value;
+}
+
+static void set_pgtable_table(u64 *page_table, u64 index, u64 *table_addr)
+{
+       u64 value;
+
+       value = (u64)table_addr | PTE_TYPE_TABLE;
+       page_table[index] = value;
+}
+
 /*
  * Set the block entries according to the information of the table.
  */
@@ -114,10 +141,10 @@ static int find_table(const struct sys_mmu_table *list,
 
 		temp_base -= block_size;
 
-		if ((level_table[index - 1] & PMD_TYPE_MASK) ==
-		    PMD_TYPE_TABLE) {
+		if ((level_table[index - 1] & PTE_TYPE_MASK) ==
+		    PTE_TYPE_TABLE) {
 			level_table = (u64 *)(level_table[index - 1] &
-				      ~PMD_TYPE_MASK);
+				      ~PTE_TYPE_MASK);
 			level++;
 			continue;
 		} else {
@@ -220,7 +247,7 @@ static inline int final_secure_ddr(u64 *level0_table,
 	struct table_info table = {};
 	struct sys_mmu_table ddr_entry = {
 		0, 0, BLOCK_SIZE_L1, MT_NORMAL,
-		PMD_SECT_OUTER_SHARE | PMD_SECT_NS
+		PTE_BLOCK_OUTER_SHARE | PTE_BLOCK_NS
 	};
 	u64 index;
 
@@ -243,7 +270,7 @@ static inline int final_secure_ddr(u64 *level0_table,
 	ddr_entry.virt_addr = phys_addr;
 	ddr_entry.phys_addr = phys_addr;
 	ddr_entry.size = CONFIG_SYS_MEM_RESERVE_SECURE;
-	ddr_entry.attribute = PMD_SECT_OUTER_SHARE;
+	ddr_entry.attribute = PTE_BLOCK_OUTER_SHARE;
 	ret = find_table(&ddr_entry, &table, level0_table);
 	if (ret) {
 		printf("MMU error: could not find secure ddr table\n");