github.com/usbarmory/tamago@v0.0.0-20240508072735-8612bbe1e454/board/raspberrypi/pizero/mem.go (about)

     1  // Raspberry Pi Zero support for tamago/arm
     2  // https://github.com/usbarmory/tamago
     3  //
     4  // Copyright (c) the pizero package authors
     5  //
     6  // Use of this source code is governed by the license
     7  // that can be found in the LICENSE file.
     8  
     9  //go:build !linkramsize
    10  // +build !linkramsize
    11  
    12  package pizero
    13  
    14  import (
    15  	_ "unsafe"
    16  )
    17  
    18  //go:linkname ramSize runtime.ramSize
    19  var ramSize uint32 = 0x20000000 - 0x04000000 // 512 MB - 64MB GPU (VideoCore)