reactos/boot/armllb/hw/versatile/hwinit.c

   1 /*
   2  * PROJECT:         ReactOS Boot Loader
   3  * LICENSE:         BSD - See COPYING.ARM in the top level directory
   4  * FILE:            boot/armllb/hw/versatile/hwinit.c
   5  * PURPOSE:         LLB Hardware Initialization Routines for Versatile
   6  * PROGRAMMERS:     ReactOS Portable Systems Group
   7  */
   8
   9 #include "precomp.h"
  10
  11 VOID
  12 NTAPI
  13 LlbHwInitialize(VOID)
  14 {
  15     /* Setup the CLCD (PL110) */
  16     LlbHwVersaClcdInitialize();
  17
  18     /* Setup the UART (PL011) */
  19     LlbHwVersaUartInitialize();
  20
  21     /* Setup the KMI (PL050) */
  22     LlbHwVersaKmiInitialize();
  23 }
  24
  25 //
  26 // Should go to hwdev.c
  27 //
  28 POSLOADER_INIT
  29 NTAPI
  30 LlbHwLoadOsLoaderFromRam(VOID)
  31 {
  32     ULONG Base, RootFs, Size;
  33     CHAR CommandLine[64];
  34
  35     /* On versatile, the NAND image is loaded as the RAMDISK */
  36     LlbEnvGetRamDiskInformation(&Base, &Size);
  37
  38     /* The LLB is first, which we already have, so skip it */
  39     Base += 0x10000; // 64 KB (see nandflash)
  40
  41     /* The OS loader is next, followed by the root file system */
  42     RootFs = Base + 0x80000; // 512 KB (see nandflash)
  43
  44     /* Set parameters for the OS loader */
  45     sprintf(CommandLine, "rdbase=0x%x rdsize=0x%x", RootFs, Size);
  46     LlbSetCommandLine(CommandLine);
  47
  48     /* Return the OS loader base address */
  49     return (POSLOADER_INIT)Base;
  50 }
  51
  52
  53 /* EOF */