On 22.09.2012 20:00, Marek Vasut wrote:
Dear Łukasz Dałek,
On 22.09.2012 19:04, Marek Vasut wrote:
Dear Łukasz Dałek,
On 19.09.2012 23:02, Marek Vasut wrote:
and at the offset
+ * 0x40 ascii characters 'ECEC', secondly 1st stage
+ * loads code from flash into SDRAM at address 0xa0040000
+ * so all instructions which reinitializes memory
+ * controller have to be disabled.
+ */
+
+static inline void writelrb(uint32_t val, uint32_t addr)
Replace this with clrsetbits_le32()
I've copied writelrb and pxa2xx_dram_init from pxa2xx.c
and I think there is a reason why it's done that way and not by
clrsetbits_le32. But if you insist I can replace all calls to writelrb
by clrsetbits.
And can you elaborate on the reason please?
(hint: clrsetbits() wasn't there by the time)
I don't know what was the reason. I didn't change becuse I didn't
want to break it.
If you have time, replace it with clrsetbits() please ... in the original file.
In arch/arm/cpu/pxa/pxa2xx.c?
+{
+ writel(val, addr);
+ asm volatile("" : : : "memory");
+ readl(addr);
+ asm volatile("" : : : "memory");
+}
+
+static void h2200_pxa2xx_dram_init(void)
Why do you duplicate it ?!
[...]
Because code in pxa2xx.c disable and then re-enable memory.
And u-boot is executed from memory (1st stage bootloder
copied it there).
So don't reinit the memory at all, just skip this whole part.
1st stage loader doesn't init everything (for example MSC).
So I checked ... every board calls the dram init on it's own in dram_init() ...
so just don't do that.
Do what? Don't call modified pxa2xx_dram_init?
+
+# define CONFIG_USB_ETHER 1
+# define CONFIG_USBNET_DEV_ADDR "de:ad:be:ef:00:01"
+# define CONFIG_USBNET_HOST_ADDR "de:ad:be:ef:00:02"
Definitelly not, any mac address setting should not be present, Joe ?
So tell me how should I specify mac addresses? By EXTRA_ENV_SETTINGS?
Joe explained it, your adapter doesn't carry it's own mac?
No.
Then leave it in ?
leave CONFIG_USBNET_DEV_ADDR...?
Łukasz Dałek
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