#16844: AsiaRF AWM003 (ramips) memory detection problem, finds 32meg instead of
64meg
------------------------+-------------------------------------
Reporter: russell@… | Owner: developers
Type: defect | Status: reopened
Priority: normal | Milestone: Barrier Breaker (trunk)
Component: packages | Version: Trunk
Resolution: | Keywords:
------------------------+-------------------------------------
Comment (by russell@…):
With this patch:
{{{
diff --git a/target/linux/ramips/patches-3.10/0900-debug_memsize.patch
b/target/linux/ramips/patches-3.10/0900-debug_memsize.patch
new file mode 100644
index 0000000..b525b9a
--- /dev/null
+++ b/target/linux/ramips/patches-3.10/0900-debug_memsize.patch
@@ -0,0 +1,13 @@
+--- a/arch/mips/ralink/rt305x.c
++++ b/arch/mips/ralink/rt305x.c
+@@ -102,8 +102,10 @@ static unsigned long rt5350_get_mem_size
+ u32 t;
+
+ t = __raw_readl(sysc + SYSC_REG_SYSTEM_CONFIG);
++ printk("SYSC_REG_SYSTEM_CONFIG: %08x (pre-shift)\n", t);
+ t = (t >> RT5350_SYSCFG0_DRAM_SIZE_SHIFT) &
+ RT5350_SYSCFG0_DRAM_SIZE_MASK;
++ printk("SYSC_REG_SYSTEM_CONFIG: %08x (post-shift)\n", t);
+
+ switch (t) {
+ case RT5350_SYSCFG0_DRAM_SIZE_2M:
}}}
I see this at the start of the boot:
{{{
[...]
## Transferring control to Linux (at address 80000000) ...
## Giving linux memsize in MB, 64
Starting kernel ...
[ 0.000000] Linux version 3.10.44 (openwrt@iris) (gcc version 4.8.3
(OpenWrt/Linaro GCC 4.8-2014.04 r41055) ) #1 Sun Jun 29 04:22:24 PDT 2014
[ 0.000000] SYSC_REG_SYSTEM_CONFIG: 00103000 (pre-shift)
[ 0.000000] SYSC_REG_SYSTEM_CONFIG: 00000003 (post-shift)
[ 0.000000] SoC Type: Ralink RT5350 id:1 rev:3
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU revision is: 0001964c (MIPS 24KEc)
[ 0.000000] MIPS: machine is AsiaRF AWM002 EVB
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 02000000 @ 00000000 (usable)
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x00000000-0x01ffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00000000-0x01ffffff]
[...]
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/16844#comment:4>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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