# HG changeset patch
# User Jerone Young <[EMAIL PROTECTED]>
# Date 1205870472 18000
# Branch merge
# Node ID 4f90f7d25186f55bfb1503764af5264201df067f
# Parent ac0fc9dfd78d2eddd083326e9b635a9286fc3b19
Add ability to specify ram on command line for bamboo board model
This patch adds the ability to now specify ram sizes on the command line.
Due to the nature of the code there are restictions on exactly how
much ram and the multiple that the size must match.
Signed-off-by: Jerone Young <[EMAIL PROTECTED]>
diff --git a/qemu/hw/ppc440_bamboo.c b/qemu/hw/ppc440_bamboo.c
--- a/qemu/hw/ppc440_bamboo.c
+++ b/qemu/hw/ppc440_bamboo.c
@@ -15,6 +15,9 @@
#define BINARY_DEVICE_TREE_FILE "bamboo.dtb"
+#define bytes_to_mb(a) (a>>20)
+#define mb_to_bytes(a) (a<<20)
+
/* PPC 440 refrence demo board
*
* 440 PowerPC CPU
@@ -28,7 +31,7 @@ void bamboo_init(ram_addr_t ram_size, in
const char *cpu_model)
{
char buf[1024];
- target_phys_addr_t ram_bases[2], ram_sizes[2];
+ target_phys_addr_t ram_bases[2], ram_sizes[2];
qemu_irq *pic;
CPUState *env;
target_ulong ep=0;
@@ -40,32 +43,39 @@ void bamboo_init(ram_addr_t ram_size, in
target_ulong dt_base=0;
void *fdt;
int ret;
+ int ram_stick_sizes[] = {256, 128, 64, 32, 16, 8 }; /* in Mega bytes */
+ ram_addr_t tmp_ram_size;
+ int i=0, k=0;
uint32_t cpu_freq;
uint32_t timebase_freq;
printf("%s: START\n", __func__);
- /* Setup Memory */
- if (ram_size) {
- printf("Ram size specified on command line is %i bytes\n",
- (int)ram_size);
- printf("WARNING: RAM is hard coded to 144MB\n");
- }
- else {
- printf("Using defualt ram size of %iMB\n",
- ((int)ram_size/1024)/1024);
+ /* Setup Memory */
+ printf("Ram size passed is: %i MB\n",
+ bytes_to_mb((int)ram_size));
+
+ tmp_ram_size = ram_size;
+
+ for (i=0; i < (sizeof(ram_sizes)/sizeof(ram_sizes[0])); i++)
+ {
+ for (k=0; k <
(sizeof(ram_stick_sizes)/sizeof(ram_stick_sizes[0])); k++)
+ {
+ if ((bytes_to_mb(ram_size)/ram_stick_sizes[k]) > 0)
+ {
+ ram_sizes[i] = mb_to_bytes(ram_stick_sizes[k]);
+ tmp_ram_size -= mb_to_bytes(ram_stick_sizes[k]);
+ break;
+ }
+ }
}
- /* Each bank can only have memory in configurations of
- * 16MB, 32MB, 64MB, 128MB, or 256MB
- */
- ram_bases[0] = 0x0;
- ram_sizes[0] = 0x08000000;
- ram_bases[1] = 0x0;
- ram_sizes[1] = 0x01000000;
-
- printf("Ram size of domain is %d bytes\n", (int)ram_size);
+ if (tmp_ram_size) {
+ printf("WARNING: %i MB left over memory is ram\n",
+ bytes_to_mb((int)tmp_ram_size));
+ ram_size -= tmp_ram_size;
+ }
/* Setup CPU */
env = cpu_ppc_init("440");
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