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   1 From 94afd3b99c65072b76edd25f73bad89587b83261 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
   3 Date: Wed, 7 Dec 2016 08:56:54 +0100
   4 Subject: [PATCH 5/6] ARM: BCM5301X: Specify all RAM by including an extra
   5  block
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 The first 128 MiB of RAM can be accessed using an alias at address 0x0.
  11
  12 In theory we could access whole RAM using 0x80000000 - 0xbfffffff range
  13 (up to 1 GiB) but it doesn't seem to work on Northstar. For some reason
  14 (hardware setup left by the bootloader maybe?) 0x80000000 - 0x87ffffff
  15 range can't be used. I reproduced this problem on:
  16 1) Buffalo WZR-600DHP2 (BCM47081)
  17 2) Netgear R6250 (BCM4708)
  18 3) D-Link DIR-885L (BCM47094)
  19
  20 So it seems we're forced to access first 128 MiB using alias at 0x0 and
  21 the rest using real base address + 128 MiB offset which is 0x88000000.
  22
  23 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  24 Acked-by: Jon Mason <jon.mason@broadcom.com>
  25 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
  26 ---
  27  arch/arm/boot/dts/bcm4708-asus-rt-ac56u.dts        | 3 ++-
  28  arch/arm/boot/dts/bcm4708-asus-rt-ac68u.dts        | 3 ++-
  29  arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts  | 3 ++-
  30  arch/arm/boot/dts/bcm4708-netgear-r6250.dts        | 3 ++-
  31  arch/arm/boot/dts/bcm4708-netgear-r6300-v2.dts     | 3 ++-
  32  arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts      | 3 ++-
  33  arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts        | 3 ++-
  34  arch/arm/boot/dts/bcm47081-buffalo-wzr-600dhp2.dts | 3 ++-
  35  arch/arm/boot/dts/bcm47081-buffalo-wzr-900dhp.dts  | 3 ++-
  36  arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts        | 3 ++-
  37  arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts  | 3 ++-
  38  arch/arm/boot/dts/bcm4709-netgear-r7000.dts        | 3 ++-
  39  arch/arm/boot/dts/bcm4709-netgear-r8000.dts        | 3 ++-
  40  arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts      | 3 ++-
  41  arch/arm/boot/dts/bcm47094-luxul-xwr-3100.dts      | 3 ++-
  42  arch/arm/boot/dts/bcm47094-netgear-r8500.dts       | 3 ++-
  43  16 files changed, 32 insertions(+), 16 deletions(-)
  44
  45 --- a/arch/arm/boot/dts/bcm4708-asus-rt-ac56u.dts
  46 +++ b/arch/arm/boot/dts/bcm4708-asus-rt-ac56u.dts
  47 @@ -21,7 +21,8 @@
  48         };
  49
  50         memory {
  51 -               reg = <0x00000000 0x08000000>;
  52 +               reg = <0x00000000 0x08000000
  53 +                      0x88000000 0x08000000>;
  54         };
  55
  56         leds {
  57 --- a/arch/arm/boot/dts/bcm4708-asus-rt-ac68u.dts
  58 +++ b/arch/arm/boot/dts/bcm4708-asus-rt-ac68u.dts
  59 @@ -21,7 +21,8 @@
  60         };
  61
  62         memory {
  63 -               reg = <0x00000000 0x08000000>;
  64 +               reg = <0x00000000 0x08000000
  65 +                      0x88000000 0x08000000>;
  66         };
  67
  68         leds {
  69 --- a/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts
  70 +++ b/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts
  71 @@ -21,7 +21,8 @@
  72         };
  73
  74         memory {
  75 -               reg = <0x00000000 0x08000000>;
  76 +               reg = <0x00000000 0x08000000
  77 +                      0x88000000 0x18000000>;
  78         };
  79
  80         spi {
  81 --- a/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
  82 +++ b/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
  83 @@ -21,7 +21,8 @@
  84         };
  85
  86         memory {
  87 -               reg = <0x00000000 0x08000000>;
  88 +               reg = <0x00000000 0x08000000
  89 +                      0x88000000 0x08000000>;
  90         };
  91
  92         leds {
  93 --- a/arch/arm/boot/dts/bcm4708-netgear-r6300-v2.dts
  94 +++ b/arch/arm/boot/dts/bcm4708-netgear-r6300-v2.dts
  95 @@ -21,7 +21,8 @@
  96         };
  97
  98         memory {
  99 -               reg = <0x00000000 0x08000000>;
 100 +               reg = <0x00000000 0x08000000
 101 +                      0x88000000 0x08000000>;
 102         };
 103
 104         leds {
 105 --- a/arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts
 106 +++ b/arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts
 107 @@ -21,7 +21,8 @@
 108         };
 109
 110         memory {
 111 -               reg = <0x00000000 0x08000000>;
 112 +               reg = <0x00000000 0x08000000
 113 +                      0x88000000 0x08000000>;
 114         };
 115
 116         leds {
 117 --- a/arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts
 118 +++ b/arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts
 119 @@ -21,7 +21,8 @@
 120         };
 121
 122         memory {
 123 -               reg = <0x00000000 0x08000000>;
 124 +               reg = <0x00000000 0x08000000
 125 +                      0x88000000 0x08000000>;
 126         };
 127
 128         leds {
 129 --- a/arch/arm/boot/dts/bcm47081-buffalo-wzr-600dhp2.dts
 130 +++ b/arch/arm/boot/dts/bcm47081-buffalo-wzr-600dhp2.dts
 131 @@ -21,7 +21,8 @@
 132         };
 133
 134         memory {
 135 -               reg = <0x00000000 0x08000000>;
 136 +               reg = <0x00000000 0x08000000
 137 +                      0x88000000 0x08000000>;
 138         };
 139
 140         spi {
 141 --- a/arch/arm/boot/dts/bcm47081-buffalo-wzr-900dhp.dts
 142 +++ b/arch/arm/boot/dts/bcm47081-buffalo-wzr-900dhp.dts
 143 @@ -21,7 +21,8 @@
 144         };
 145
 146         memory {
 147 -               reg = <0x00000000 0x08000000>;
 148 +               reg = <0x00000000 0x08000000
 149 +                      0x88000000 0x08000000>;
 150         };
 151
 152         gpio-keys {
 153 --- a/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts
 154 +++ b/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts
 155 @@ -21,7 +21,8 @@
 156         };
 157
 158         memory {
 159 -               reg = <0x00000000 0x08000000>;
 160 +               reg = <0x00000000 0x08000000
 161 +                      0x88000000 0x08000000>;
 162         };
 163
 164         leds {
 165 --- a/arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts
 166 +++ b/arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts
 167 @@ -21,7 +21,8 @@
 168         };
 169
 170         memory {
 171 -               reg = <0x00000000 0x08000000>;
 172 +               reg = <0x00000000 0x08000000
 173 +                      0x88000000 0x18000000>;
 174         };
 175
 176         leds {
 177 --- a/arch/arm/boot/dts/bcm4709-netgear-r7000.dts
 178 +++ b/arch/arm/boot/dts/bcm4709-netgear-r7000.dts
 179 @@ -21,7 +21,8 @@
 180         };
 181
 182         memory {
 183 -               reg = <0x00000000 0x08000000>;
 184 +               reg = <0x00000000 0x08000000
 185 +                      0x88000000 0x08000000>;
 186         };
 187
 188         leds {
 189 --- a/arch/arm/boot/dts/bcm4709-netgear-r8000.dts
 190 +++ b/arch/arm/boot/dts/bcm4709-netgear-r8000.dts
 191 @@ -21,7 +21,8 @@
 192         };
 193
 194         memory {
 195 -               reg = <0x00000000 0x08000000>;
 196 +               reg = <0x00000000 0x08000000
 197 +                      0x88000000 0x08000000>;
 198         };
 199
 200         leds {
 201 --- a/arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts
 202 +++ b/arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts
 203 @@ -21,7 +21,8 @@
 204         };
 205
 206         memory {
 207 -               reg = <0x00000000 0x08000000>;
 208 +               reg = <0x00000000 0x08000000
 209 +                      0x88000000 0x08000000>;
 210         };
 211
 212         nand: nand@18028000 {
 213 --- a/arch/arm/boot/dts/bcm47094-luxul-xwr-3100.dts
 214 +++ b/arch/arm/boot/dts/bcm47094-luxul-xwr-3100.dts
 215 @@ -18,7 +18,8 @@
 216         };
 217
 218         memory {
 219 -               reg = <0x00000000 0x08000000>;
 220 +               reg = <0x00000000 0x08000000
 221 +                      0x88000000 0x08000000>;
 222         };
 223
 224         leds {
 225 --- a/arch/arm/boot/dts/bcm47094-netgear-r8500.dts
 226 +++ b/arch/arm/boot/dts/bcm47094-netgear-r8500.dts
 227 @@ -18,7 +18,8 @@
 228         };
 229
 230         memory {
 231 -               reg = <0x00000000 0x08000000>;
 232 +               reg = <0x00000000 0x08000000
 233 +                      0x88000000 0x18000000>;
 234         };
 235
 236         leds {