]> git.ipfire.org Git - people/ms/u-boot.git/blobdiff - arch/arm/cpu/armv8/fsl-layerscape/cpu.c
board_f: Drop return value from initdram()
[people/ms/u-boot.git] / arch / arm / cpu / armv8 / fsl-layerscape / cpu.c
index 467d9af9200ab6dc26fd5a7eaddb9976c7ab2421..1e6d90c68f3806ded89aa6532e9150077e443fcf 100644 (file)
@@ -89,6 +89,49 @@ static inline void early_mmu_setup(void)
        set_sctlr(get_sctlr() | CR_M);
 }
 
+static void fix_pcie_mmu_map(void)
+{
+#ifdef CONFIG_LS2080A
+       unsigned int i;
+       u32 svr, ver;
+       struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+
+       svr = gur_in32(&gur->svr);
+       ver = SVR_SOC_VER(svr);
+
+       /* Fix PCIE base and size for LS2088A */
+       if ((ver == SVR_LS2088A) || (ver == SVR_LS2084A) ||
+           (ver == SVR_LS2048A) || (ver == SVR_LS2044A)) {
+               for (i = 0; i < ARRAY_SIZE(final_map); i++) {
+                       switch (final_map[i].phys) {
+                       case CONFIG_SYS_PCIE1_PHYS_ADDR:
+                               final_map[i].phys = 0x2000000000ULL;
+                               final_map[i].virt = 0x2000000000ULL;
+                               final_map[i].size = 0x800000000ULL;
+                               break;
+                       case CONFIG_SYS_PCIE2_PHYS_ADDR:
+                               final_map[i].phys = 0x2800000000ULL;
+                               final_map[i].virt = 0x2800000000ULL;
+                               final_map[i].size = 0x800000000ULL;
+                               break;
+                       case CONFIG_SYS_PCIE3_PHYS_ADDR:
+                               final_map[i].phys = 0x3000000000ULL;
+                               final_map[i].virt = 0x3000000000ULL;
+                               final_map[i].size = 0x800000000ULL;
+                               break;
+                       case CONFIG_SYS_PCIE4_PHYS_ADDR:
+                               final_map[i].phys = 0x3800000000ULL;
+                               final_map[i].virt = 0x3800000000ULL;
+                               final_map[i].size = 0x800000000ULL;
+                               break;
+                       default:
+                               break;
+                       }
+               }
+       }
+#endif
+}
+
 /*
  * The final tables look similar to early tables, but different in detail.
  * These tables are in DRAM. Sub tables are added to enable cache for
@@ -101,12 +144,53 @@ static inline void final_mmu_setup(void)
 {
        u64 tlb_addr_save = gd->arch.tlb_addr;
        unsigned int el = current_el();
-#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
        int index;
-#endif
+
+       /* fix the final_map before filling in the block entries */
+       fix_pcie_mmu_map();
 
        mem_map = final_map;
 
+       /* Update mapping for DDR to actual size */
+       for (index = 0; index < ARRAY_SIZE(final_map) - 2; index++) {
+               /*
+                * Find the entry for DDR mapping and update the address and
+                * size. Zero-sized mapping will be skipped when creating MMU
+                * table.
+                */
+               switch (final_map[index].virt) {
+               case CONFIG_SYS_FSL_DRAM_BASE1:
+                       final_map[index].virt = gd->bd->bi_dram[0].start;
+                       final_map[index].phys = gd->bd->bi_dram[0].start;
+                       final_map[index].size = gd->bd->bi_dram[0].size;
+                       break;
+#ifdef CONFIG_SYS_FSL_DRAM_BASE2
+               case CONFIG_SYS_FSL_DRAM_BASE2:
+#if (CONFIG_NR_DRAM_BANKS >= 2)
+                       final_map[index].virt = gd->bd->bi_dram[1].start;
+                       final_map[index].phys = gd->bd->bi_dram[1].start;
+                       final_map[index].size = gd->bd->bi_dram[1].size;
+#else
+                       final_map[index].size = 0;
+#endif
+               break;
+#endif
+#ifdef CONFIG_SYS_FSL_DRAM_BASE3
+               case CONFIG_SYS_FSL_DRAM_BASE3:
+#if (CONFIG_NR_DRAM_BANKS >= 3)
+                       final_map[index].virt = gd->bd->bi_dram[2].start;
+                       final_map[index].phys = gd->bd->bi_dram[2].start;
+                       final_map[index].size = gd->bd->bi_dram[2].size;
+#else
+                       final_map[index].size = 0;
+#endif
+               break;
+#endif
+               default:
+                       break;
+               }
+       }
+
 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
        if (gd->arch.secure_ram & MEM_RESERVE_SECURE_MAINTAINED) {
                if (el == 3) {
@@ -143,21 +227,14 @@ static inline void final_mmu_setup(void)
        setup_pgtables();
        gd->arch.tlb_addr = tlb_addr_save;
 
-       /* flush new MMU table */
-       flush_dcache_range(gd->arch.tlb_addr,
-                          gd->arch.tlb_addr + gd->arch.tlb_size);
+       /* Disable cache and MMU */
+       dcache_disable();       /* TLBs are invalidated */
+       invalidate_icache_all();
 
        /* point TTBR to the new table */
        set_ttbr_tcr_mair(el, gd->arch.tlb_addr, get_tcr(el, NULL, NULL),
                          MEMORY_ATTRIBUTES);
-       /*
-        * EL3 MMU is already enabled, just need to invalidate TLB to load the
-        * new table. The new table is compatible with the current table, if
-        * MMU somehow walks through the new table before invalidation TLB,
-        * it still works. So we don't need to turn off MMU here.
-        * When EL2 MMU table is created by calling this function, MMU needs
-        * to be enabled.
-        */
+
        set_sctlr(get_sctlr() | CR_M);
 }
 
@@ -345,8 +422,9 @@ int print_cpuinfo(void)
                       (type == TY_ITYP_VER_A72 ? "A72" : "   "))),
                       strmhz(buf, sysinfo.freq_processor[core]));
        }
+       /* Display platform clock as Bus frequency. */
        printf("\n       Bus:      %-4s MHz  ",
-              strmhz(buf, sysinfo.freq_systembus));
+              strmhz(buf, sysinfo.freq_systembus / CONFIG_SYS_FSL_PCLK_DIV));
        printf("DDR:      %-4s MT/s", strmhz(buf, sysinfo.freq_ddrbus));
 #ifdef CONFIG_SYS_DPAA_FMAN
        printf("  FMAN:     %-4s MHz", strmhz(buf, sysinfo.freq_fman[0]));
@@ -404,14 +482,21 @@ int arch_early_init_r(void)
 #endif
 
 #ifdef CONFIG_SYS_FSL_ERRATUM_A009635
-       erratum_a009635();
+       u32 svr_dev_id;
+       /*
+        * erratum A009635 is valid only for LS2080A SoC and
+        * its personalitiesi
+        */
+       svr_dev_id = get_svr() >> 16;
+       if (svr_dev_id == SVR_DEV_LS2080A)
+               erratum_a009635();
 #endif
 #if defined(CONFIG_SYS_FSL_ERRATUM_A009942) && defined(CONFIG_SYS_FSL_DDR)
        erratum_a009942_check_cpo();
 #endif
 #ifdef CONFIG_MP
 #if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \
-       defined(CONFIG_FSL_PPA_ARMV8_PSCI)
+       defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
        /* Check the psci version to determine if the psci is supported */
        psci_ver = sec_firmware_support_psci_version();
 #endif
@@ -523,15 +608,277 @@ phys_size_t board_reserve_ram_top(phys_size_t ram_size)
 {
        phys_size_t ram_top = ram_size;
 
-#ifdef CONFIG_SYS_MEM_TOP_HIDE
-#error CONFIG_SYS_MEM_TOP_HIDE not to be used together with this function
-#endif
-
-/* Carve the MC private DRAM block from the end of DRAM */
 #ifdef CONFIG_FSL_MC_ENET
+       /* The start address of MC reserved memory needs to be aligned. */
        ram_top -= mc_get_dram_block_size();
        ram_top &= ~(CONFIG_SYS_MC_RSV_MEM_ALIGN - 1);
 #endif
 
-       return ram_top;
+       return ram_size - ram_top;
+}
+
+phys_size_t get_effective_memsize(void)
+{
+       phys_size_t ea_size, rem = 0;
+
+       /*
+        * For ARMv8 SoCs, DDR memory is split into two or three regions. The
+        * first region is 2GB space at 0x8000_0000. If the memory extends to
+        * the second region (or the third region if applicable), the secure
+        * memory and Management Complex (MC) memory should be put into the
+        * highest region, i.e. the end of DDR memory. CONFIG_MAX_MEM_MAPPED
+        * is set to the size of first region so U-Boot doesn't relocate itself
+        * into higher address. Should DDR be configured to skip the first
+        * region, this function needs to be adjusted.
+        */
+       if (gd->ram_size > CONFIG_MAX_MEM_MAPPED) {
+               ea_size = CONFIG_MAX_MEM_MAPPED;
+               rem = gd->ram_size - ea_size;
+       } else {
+               ea_size = gd->ram_size;
+       }
+
+#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
+       /* Check if we have enough space for secure memory */
+       if (rem > CONFIG_SYS_MEM_RESERVE_SECURE) {
+               rem -= CONFIG_SYS_MEM_RESERVE_SECURE;
+       } else {
+               if (ea_size > CONFIG_SYS_MEM_RESERVE_SECURE) {
+                       ea_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
+                       rem = 0;        /* Presume MC requires more memory */
+               } else {
+                       printf("Error: No enough space for secure memory.\n");
+               }
+       }
+#endif
+       /* Check if we have enough memory for MC */
+       if (rem < board_reserve_ram_top(rem)) {
+               /* Not enough memory in high region to reserve */
+               if (ea_size > board_reserve_ram_top(rem))
+                       ea_size -= board_reserve_ram_top(rem);
+               else
+                       printf("Error: No enough space for reserved memory.\n");
+       }
+
+       return ea_size;
+}
+
+void dram_init_banksize(void)
+{
+#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
+       phys_size_t dp_ddr_size;
+#endif
+
+       /*
+        * gd->ram_size has the total size of DDR memory, less reserved secure
+        * memory. The DDR extends from low region to high region(s) presuming
+        * no hole is created with DDR configuration. gd->arch.secure_ram tracks
+        * the location of secure memory. gd->arch.resv_ram tracks the location
+        * of reserved memory for Management Complex (MC).
+        */
+       gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+       if (gd->ram_size > CONFIG_SYS_DDR_BLOCK1_SIZE) {
+               gd->bd->bi_dram[0].size = CONFIG_SYS_DDR_BLOCK1_SIZE;
+               gd->bd->bi_dram[1].start = CONFIG_SYS_DDR_BLOCK2_BASE;
+               gd->bd->bi_dram[1].size = gd->ram_size -
+                                         CONFIG_SYS_DDR_BLOCK1_SIZE;
+#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
+               if (gd->bi_dram[1].size > CONFIG_SYS_DDR_BLOCK2_SIZE) {
+                       gd->bd->bi_dram[2].start = CONFIG_SYS_DDR_BLOCK3_BASE;
+                       gd->bd->bi_dram[2].size = gd->bd->bi_dram[1].size -
+                                                 CONFIG_SYS_DDR_BLOCK2_SIZE;
+                       gd->bd->bi_dram[1].size = CONFIG_SYS_DDR_BLOCK2_SIZE;
+               }
+#endif
+       } else {
+               gd->bd->bi_dram[0].size = gd->ram_size;
+       }
+#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
+#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
+       if (gd->bd->bi_dram[2].size >= CONFIG_SYS_MEM_RESERVE_SECURE) {
+               gd->bd->bi_dram[2].size -= CONFIG_SYS_MEM_RESERVE_SECURE;
+               gd->arch.secure_ram = gd->bd->bi_dram[2].start +
+                                     gd->bd->bi_dram[2].size;
+               gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
+               gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
+       } else
+#endif
+       {
+               if (gd->bd->bi_dram[1].size >= CONFIG_SYS_MEM_RESERVE_SECURE) {
+                       gd->bd->bi_dram[1].size -=
+                                       CONFIG_SYS_MEM_RESERVE_SECURE;
+                       gd->arch.secure_ram = gd->bd->bi_dram[1].start +
+                                             gd->bd->bi_dram[1].size;
+                       gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
+                       gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
+               } else if (gd->bd->bi_dram[0].size >
+                                       CONFIG_SYS_MEM_RESERVE_SECURE) {
+                       gd->bd->bi_dram[0].size -=
+                                       CONFIG_SYS_MEM_RESERVE_SECURE;
+                       gd->arch.secure_ram = gd->bd->bi_dram[0].start +
+                                             gd->bd->bi_dram[0].size;
+                       gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
+                       gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
+               }
+       }
+#endif /* CONFIG_SYS_MEM_RESERVE_SECURE */
+
+#ifdef CONFIG_FSL_MC_ENET
+       /* Assign memory for MC */
+#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
+       if (gd->bd->bi_dram[2].size >=
+           board_reserve_ram_top(gd->bd->bi_dram[2].size)) {
+               gd->arch.resv_ram = gd->bd->bi_dram[2].start +
+                           gd->bd->bi_dram[2].size -
+                           board_reserve_ram_top(gd->bd->bi_dram[2].size);
+       } else
+#endif
+       {
+               if (gd->bd->bi_dram[1].size >=
+                   board_reserve_ram_top(gd->bd->bi_dram[1].size)) {
+                       gd->arch.resv_ram = gd->bd->bi_dram[1].start +
+                               gd->bd->bi_dram[1].size -
+                               board_reserve_ram_top(gd->bd->bi_dram[1].size);
+               } else if (gd->bd->bi_dram[0].size >
+                          board_reserve_ram_top(gd->bd->bi_dram[0].size)) {
+                       gd->arch.resv_ram = gd->bd->bi_dram[0].start +
+                               gd->bd->bi_dram[0].size -
+                               board_reserve_ram_top(gd->bd->bi_dram[0].size);
+               }
+       }
+#endif /* CONFIG_FSL_MC_ENET */
+
+#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
+#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
+#error "This SoC shouldn't have DP DDR"
+#endif
+       if (soc_has_dp_ddr()) {
+               /* initialize DP-DDR here */
+               puts("DP-DDR:  ");
+               /*
+                * DDR controller use 0 as the base address for binding.
+                * It is mapped to CONFIG_SYS_DP_DDR_BASE for core to access.
+                */
+               dp_ddr_size = fsl_other_ddr_sdram(CONFIG_SYS_DP_DDR_BASE_PHY,
+                                         CONFIG_DP_DDR_CTRL,
+                                         CONFIG_DP_DDR_NUM_CTRLS,
+                                         CONFIG_DP_DDR_DIMM_SLOTS_PER_CTLR,
+                                         NULL, NULL, NULL);
+               if (dp_ddr_size) {
+                       gd->bd->bi_dram[2].start = CONFIG_SYS_DP_DDR_BASE;
+                       gd->bd->bi_dram[2].size = dp_ddr_size;
+               } else {
+                       puts("Not detected");
+               }
+       }
+#endif
+}
+
+#if defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD)
+void efi_add_known_memory(void)
+{
+       int i;
+       phys_addr_t ram_start, start;
+       phys_size_t ram_size;
+       u64 pages;
+
+       /* Add RAM */
+       for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
+#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
+#error "This SoC shouldn't have DP DDR"
+#endif
+               if (i == 2)
+                       continue;       /* skip DP-DDR */
+#endif
+               ram_start = gd->bd->bi_dram[i].start;
+               ram_size = gd->bd->bi_dram[i].size;
+#ifdef CONFIG_RESV_RAM
+               if (gd->arch.resv_ram >= ram_start &&
+                   gd->arch.resv_ram < ram_start + ram_size)
+                       ram_size = gd->arch.resv_ram - ram_start;
+#endif
+               start = (ram_start + EFI_PAGE_MASK) & ~EFI_PAGE_MASK;
+               pages = (ram_size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
+
+               efi_add_memory_map(start, pages, EFI_CONVENTIONAL_MEMORY,
+                                  false);
+       }
+}
+#endif
+
+/*
+ * Before DDR size is known, early MMU table have DDR mapped as device memory
+ * to avoid speculative access. To relocate U-Boot to DDR, "normal memory"
+ * needs to be set for these mappings.
+ * If a special case configures DDR with holes in the mapping, the holes need
+ * to be marked as invalid. This is not implemented in this function.
+ */
+void update_early_mmu_table(void)
+{
+       if (!gd->arch.tlb_addr)
+               return;
+
+       if (gd->ram_size <= CONFIG_SYS_FSL_DRAM_SIZE1) {
+               mmu_change_region_attr(
+                                       CONFIG_SYS_SDRAM_BASE,
+                                       gd->ram_size,
+                                       PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
+                                       PTE_BLOCK_OUTER_SHARE           |
+                                       PTE_BLOCK_NS                    |
+                                       PTE_TYPE_VALID);
+       } else {
+               mmu_change_region_attr(
+                                       CONFIG_SYS_SDRAM_BASE,
+                                       CONFIG_SYS_DDR_BLOCK1_SIZE,
+                                       PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
+                                       PTE_BLOCK_OUTER_SHARE           |
+                                       PTE_BLOCK_NS                    |
+                                       PTE_TYPE_VALID);
+#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
+#ifndef CONFIG_SYS_DDR_BLOCK2_SIZE
+#error "Missing CONFIG_SYS_DDR_BLOCK2_SIZE"
+#endif
+               if (gd->ram_size - CONFIG_SYS_DDR_BLOCK1_SIZE >
+                   CONFIG_SYS_DDR_BLOCK2_SIZE) {
+                       mmu_change_region_attr(
+                                       CONFIG_SYS_DDR_BLOCK2_BASE,
+                                       CONFIG_SYS_DDR_BLOCK2_SIZE,
+                                       PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
+                                       PTE_BLOCK_OUTER_SHARE           |
+                                       PTE_BLOCK_NS                    |
+                                       PTE_TYPE_VALID);
+                       mmu_change_region_attr(
+                                       CONFIG_SYS_DDR_BLOCK3_BASE,
+                                       gd->ram_size -
+                                       CONFIG_SYS_DDR_BLOCK1_SIZE -
+                                       CONFIG_SYS_DDR_BLOCK2_SIZE,
+                                       PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
+                                       PTE_BLOCK_OUTER_SHARE           |
+                                       PTE_BLOCK_NS                    |
+                                       PTE_TYPE_VALID);
+               } else
+#endif
+               {
+                       mmu_change_region_attr(
+                                       CONFIG_SYS_DDR_BLOCK2_BASE,
+                                       gd->ram_size -
+                                       CONFIG_SYS_DDR_BLOCK1_SIZE,
+                                       PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
+                                       PTE_BLOCK_OUTER_SHARE           |
+                                       PTE_BLOCK_NS                    |
+                                       PTE_TYPE_VALID);
+               }
+       }
+}
+
+__weak int dram_init(void)
+{
+       initdram();
+#if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD)
+       /* This will break-before-make MMU for DDR */
+       update_early_mmu_table();
+#endif
+
+       return 0;
 }