arch/arm/cpu/armv8/zynqmp/cpu.c

   1 /*
   2  * (C) Copyright 2014 - 2015 Xilinx, Inc.
   3  * Michal Simek <michal.simek@xilinx.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <asm/arch/hardware.h>
  10 #include <asm/arch/sys_proto.h>
  11 #include <asm/armv8/mmu.h>
  12 #include <asm/io.h>
  13
  14 #define ZYNQ_SILICON_VER_MASK   0xF000
  15 #define ZYNQ_SILICON_VER_SHIFT  12
  16
  17 DECLARE_GLOBAL_DATA_PTR;
  18
  19 static struct mm_region zynqmp_mem_map[] = {
  20         {
  21                 .virt = 0x0UL,
  22                 .phys = 0x0UL,
  23                 .size = 0x80000000UL,
  24                 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
  25                          PTE_BLOCK_INNER_SHARE
  26         }, {
  27                 .virt = 0x80000000UL,
  28                 .phys = 0x80000000UL,
  29                 .size = 0x70000000UL,
  30                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  31                          PTE_BLOCK_NON_SHARE |
  32                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
  33         }, {
  34                 .virt = 0xf8000000UL,
  35                 .phys = 0xf8000000UL,
  36                 .size = 0x07e00000UL,
  37                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  38                          PTE_BLOCK_NON_SHARE |
  39                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
  40         }, {
  41                 .virt = 0x400000000UL,
  42                 .phys = 0x400000000UL,
  43                 .size = 0x200000000UL,
  44                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  45                          PTE_BLOCK_NON_SHARE |
  46                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
  47         }, {
  48                 .virt = 0x600000000UL,
  49                 .phys = 0x600000000UL,
  50                 .size = 0x800000000UL,
  51                 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
  52                          PTE_BLOCK_INNER_SHARE
  53         }, {
  54                 .virt = 0xe00000000UL,
  55                 .phys = 0xe00000000UL,
  56                 .size = 0xf200000000UL,
  57                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  58                          PTE_BLOCK_NON_SHARE |
  59                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
  60         }, {
  61                 /* List terminator */
  62                 0,
  63         }
  64 };
  65 struct mm_region *mem_map = zynqmp_mem_map;
  66
  67 u64 get_page_table_size(void)
  68 {
  69         return 0x14000;
  70 }
  71
  72 static unsigned int zynqmp_get_silicon_version_secure(void)
  73 {
  74         u32 ver;
  75
  76         ver = readl(&csu_base->version);
  77         ver &= ZYNQMP_SILICON_VER_MASK;
  78         ver >>= ZYNQMP_SILICON_VER_SHIFT;
  79
  80         return ver;
  81 }
  82
  83 unsigned int zynqmp_get_silicon_version(void)
  84 {
  85         if (current_el() == 3)
  86                 return zynqmp_get_silicon_version_secure();
  87
  88         gd->cpu_clk = get_tbclk();
  89
  90         switch (gd->cpu_clk) {
  91         case 0 ... 1000000:
  92                 return ZYNQMP_CSU_VERSION_VELOCE;
  93         case 50000000:
  94                 return ZYNQMP_CSU_VERSION_QEMU;
  95         case 4000000:
  96                 return ZYNQMP_CSU_VERSION_EP108;
  97         }
  98
  99         return ZYNQMP_CSU_VERSION_SILICON;
 100 }