DECLARE_GLOBAL_DATA_PTR;
-void __arm_init_before_mmu(void)
+__weak void arm_init_before_mmu(void)
{
}
-void arm_init_before_mmu(void)
- __attribute__((weak, alias("__arm_init_before_mmu")));
__weak void arm_init_domains(void)
{
}
-static void cp_delay (void)
-{
- volatile int i;
-
- /* copro seems to need some delay between reading and writing */
- for (i = 0; i < 100; i++)
- nop();
- asm volatile("" : : : "memory");
-}
-
void set_section_dcache(int section, enum dcache_option option)
{
u32 *page_table = (u32 *)gd->arch.tlb_addr;
page_table[section] = value;
}
-void __mmu_page_table_flush(unsigned long start, unsigned long stop)
+__weak void mmu_page_table_flush(unsigned long start, unsigned long stop)
{
debug("%s: Warning: not implemented\n", __func__);
}
-void mmu_page_table_flush(unsigned long start, unsigned long stop)
- __attribute__((weak, alias("__mmu_page_table_flush")));
-
-void mmu_set_region_dcache_behaviour(u32 start, int size,
+void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size,
enum dcache_option option)
{
u32 *page_table = (u32 *)gd->arch.tlb_addr;
- u32 upto, end;
+ unsigned long upto, end;
end = ALIGN(start + size, MMU_SECTION_SIZE) >> MMU_SECTION_SHIFT;
start = start >> MMU_SECTION_SHIFT;
- debug("%s: start=%x, size=%x, option=%d\n", __func__, start, size,
+ debug("%s: start=%pa, size=%zu, option=%d\n", __func__, &start, size,
option);
for (upto = start; upto < end; upto++)
set_section_dcache(upto, option);
debug("%s: bank: %d\n", __func__, bank);
for (i = bd->bi_dram[bank].start >> 20;
- i < (bd->bi_dram[bank].start + bd->bi_dram[bank].size) >> 20;
+ i < (bd->bi_dram[bank].start >> 20) + (bd->bi_dram[bank].size >> 20);
i++) {
#if defined(CONFIG_SYS_ARM_CACHE_WRITETHROUGH)
set_section_dcache(i, DCACHE_WRITETHROUGH);
+#elif defined(CONFIG_SYS_ARM_CACHE_WRITEALLOC)
+ set_section_dcache(i, DCACHE_WRITEALLOC);
#else
set_section_dcache(i, DCACHE_WRITEBACK);
#endif
dram_bank_mmu_setup(i);
}
+#ifdef CONFIG_ARMV7
+ /* Set TTBR0 */
+ reg = gd->arch.tlb_addr & TTBR0_BASE_ADDR_MASK;
+#if defined(CONFIG_SYS_ARM_CACHE_WRITETHROUGH)
+ reg |= TTBR0_RGN_WT | TTBR0_IRGN_WT;
+#elif defined(CONFIG_SYS_ARM_CACHE_WRITEALLOC)
+ reg |= TTBR0_RGN_WBWA | TTBR0_IRGN_WBWA;
+#else
+ reg |= TTBR0_RGN_WB | TTBR0_IRGN_WB;
+#endif
+ asm volatile("mcr p15, 0, %0, c2, c0, 0"
+ : : "r" (reg) : "memory");
+#else
/* Copy the page table address to cp15 */
asm volatile("mcr p15, 0, %0, c2, c0, 0"
: : "r" (gd->arch.tlb_addr) : "memory");
+#endif
/* Set the access control to all-supervisor */
asm volatile("mcr p15, 0, %0, c3, c0, 0"
: : "r" (~0));
/* and enable the mmu */
reg = get_cr(); /* get control reg. */
- cp_delay();
set_cr(reg | CR_M);
}
if ((cache_bit == CR_C) && !mmu_enabled())
mmu_setup();
reg = get_cr(); /* get control reg. */
- cp_delay();
set_cr(reg | cache_bit);
}
uint32_t reg;
reg = get_cr();
- cp_delay();
if (cache_bit == CR_C) {
/* if cache isn;t enabled no need to disable */
cache_bit |= CR_M;
}
reg = get_cr();
- cp_delay();
if (cache_bit == (CR_C | CR_M))
flush_dcache_all();
set_cr(reg & ~cache_bit);