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ARM PBX-A9 memory map tweaks

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Add core tile memeory to the RealView PBX-A9 board.  Document the
memeory maps that are known to work with the qemu bootloader.

Signed-off-by: Paul Brook <paul@codesourcery.com>
This commit is contained in:
Paul Brook 2009-12-21 20:19:12 +00:00
parent 209bf9658a
commit 21a8894168
2 changed files with 21 additions and 4 deletions
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12
hw/realview.c
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@ -192,11 +192,19 @@ static void realview_init(ram_addr_t ram_size,
proc_id = 0x02000000;
}
if (is_pb && ram_size > 0x20000000) {
/* Core tile RAM. */
low_ram_size = ram_size - 0x20000000;
ram_size = 0x20000000;
ram_offset = qemu_ram_alloc(low_ram_size);
cpu_register_physical_memory(0x20000000, low_ram_size,
ram_offset | IO_MEM_RAM);
}
ram_offset = qemu_ram_alloc(ram_size);
low_ram_size = ram_size;
if (low_ram_size > 0x10000000)
low_ram_size = 0x10000000;
/* ??? RAM should repeat to fill physical memory space. */
/* SDRAM at address zero. */
cpu_register_physical_memory(0, low_ram_size, ram_offset | IO_MEM_RAM);
if (is_pb) {
@ -356,7 +364,7 @@ static void realview_init(ram_addr_t ram_size,
realview_binfo.initrd_filename = initrd_filename;
realview_binfo.nb_cpus = smp_cpus;
realview_binfo.board_id = realview_board_id[board_type];
realview_binfo.loader_start = is_pb ? 0x70000000 : 0;
realview_binfo.loader_start = (board_type == BOARD_PB_A8 ? 0x70000000 : 0);
arm_load_kernel(first_cpu, &realview_binfo);
}

13
qemu-doc.texi
View File

@ -1659,8 +1659,17 @@ LSI53C895A PCI SCSI Host Bus Adapter with hard disk and CD-ROM devices.
PL181 MultiMedia Card Interface with SD card.
@end itemize
The ARM RealView Emulation/Platform baseboard is emulated with the following
devices:
Several variants of the ARM RealView baseboard are emulated,
including the EB, PB-A8 and PBX-A9. Due to interactions with the
bootloader, only certain Linux kernel configurations work out
of the box on these boards.
Kernels for the PB-A8 board should have CONFIG_REALVIEW_HIGH_PHYS_OFFSET
enabled in the kernel, and expect 512M RAM. Kernels for The PBX-A9 board
should have CONFIG_SPARSEMEM enabled, CONFIG_REALVIEW_HIGH_PHYS_OFFSET
disabled and expect 1024M RAM.
The following devices are emuilated:
@itemize @minus
@item