arch/powerpc/cpu/mpc83xx/fdt.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2007 Freescale Semiconductor, Inc.
   4  *
   5  * (C) Copyright 2000
   6  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   7  */
   8
   9 #include <common.h>
  10 #include <clock_legacy.h>
  11 #include <asm/global_data.h>
  12 #include <linux/libfdt.h>
  13 #include <fdt_support.h>
  14 #include <asm/processor.h>
  15
  16 extern void ft_qe_setup(void *blob);
  17
  18 DECLARE_GLOBAL_DATA_PTR;
  19
  20 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
  21         (defined(CONFIG_QE) && !defined(CONFIG_ARCH_MPC831X))
  22 #include <linux/immap_qe.h>
  23
  24 void fdt_fixup_muram (void *blob)
  25 {
  26         ulong data[2];
  27
  28         data[0] = 0;
  29         data[1] = QE_MURAM_SIZE - 2 * sizeof(unsigned long);
  30         do_fixup_by_compat(blob, "fsl,qe-muram-data", "reg",
  31                         data, sizeof (data), 0);
  32 }
  33 #endif
  34
  35 void ft_cpu_setup(void *blob, struct bd_info *bd)
  36 {
  37         immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
  38         int spridr = immr->sysconf.spridr;
  39
  40         /*
  41          * delete crypto node if not on an E-processor
  42          * initial revisions of the MPC834xE/6xE have the original SEC 2.0.
  43          * EA revisions got the SEC uprevved to 2.4 but since the default device
  44          * tree contains SEC 2.0 properties we uprev them here.
  45          */
  46         if (!IS_E_PROCESSOR(spridr))
  47                 fdt_fixup_crypto_node(blob, 0);
  48         else if (IS_E_PROCESSOR(spridr) &&
  49                  (SPR_FAMILY(spridr) == SPR_834X_FAMILY ||
  50                   SPR_FAMILY(spridr) == SPR_836X_FAMILY) &&
  51                  REVID_MAJOR(spridr) >= 2)
  52                 fdt_fixup_crypto_node(blob, 0x0204);
  53
  54 #ifdef CONFIG_ARCH_MPC8313
  55         /*
  56         * mpc8313e erratum IPIC1 swapped TSEC interrupt ID numbers on rev. 1
  57         * h/w (see AN3545).  The base device tree in use has rev. 1 ID numbers,
  58         * so if on Rev. 2 (and higher) h/w, we fix them up here
  59         */
  60         if (REVID_MAJOR(immr->sysconf.spridr) >= 2) {
  61                 int nodeoffset, path;
  62                 const char *prop;
  63
  64                 nodeoffset = fdt_path_offset(blob, "/aliases");
  65                 if (nodeoffset >= 0) {
  66                         prop = fdt_getprop(blob, nodeoffset, "ethernet0", NULL);
  67                         if (prop) {
  68                                 u32 tmp[] = { 32, 0x8, 33, 0x8, 34, 0x8 };
  69
  70                                 path = fdt_path_offset(blob, prop);
  71                                 prop = fdt_getprop(blob, path, "interrupts",
  72                                                    NULL);
  73                                 if (prop)
  74                                         fdt_setprop(blob, path, "interrupts",
  75                                                     &tmp, sizeof(tmp));
  76                         }
  77                         prop = fdt_getprop(blob, nodeoffset, "ethernet1", NULL);
  78                         if (prop) {
  79                                 u32 tmp[] = { 35, 0x8, 36, 0x8, 37, 0x8 };
  80
  81                                 path = fdt_path_offset(blob, prop);
  82                                 prop = fdt_getprop(blob, path, "interrupts",
  83                                                    NULL);
  84                                 if (prop)
  85                                         fdt_setprop(blob, path, "interrupts",
  86                                                     &tmp, sizeof(tmp));
  87                         }
  88                 }
  89         }
  90 #endif
  91
  92         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  93                 "timebase-frequency", (bd->bi_busfreq / 4), 1);
  94         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  95                 "bus-frequency", bd->bi_busfreq, 1);
  96         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  97                 "clock-frequency", gd->arch.core_clk, 1);
  98         do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
  99                 "bus-frequency", bd->bi_busfreq, 1);
 100         do_fixup_by_compat_u32(blob, "fsl,soc",
 101                 "bus-frequency", bd->bi_busfreq, 1);
 102         do_fixup_by_compat_u32(blob, "fsl,soc",
 103                 "clock-frequency", bd->bi_busfreq, 1);
 104         do_fixup_by_compat_u32(blob, "fsl,immr",
 105                 "bus-frequency", bd->bi_busfreq, 1);
 106         do_fixup_by_compat_u32(blob, "fsl,immr",
 107                 "clock-frequency", bd->bi_busfreq, 1);
 108 #ifdef CONFIG_QE
 109         ft_qe_setup(blob);
 110 #endif
 111
 112 #ifdef CONFIG_SYS_NS16550
 113         do_fixup_by_compat_u32(blob, "ns16550",
 114                 "clock-frequency", get_serial_clock(), 1);
 115 #endif
 116
 117         fdt_fixup_memory(blob, (u64)gd->ram_base, (u64)gd->ram_size);
 118
 119 #if defined(CONFIG_BOOTCOUNT_LIMIT) && \
 120         (defined(CONFIG_QE) && !defined(CONFIG_ARCH_MPC831X))
 121         fdt_fixup_muram (blob);
 122 #endif
 123 }