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patch pxa2x0's com and lcd
Hi! all,
I think more necessary two patches.
The pxa2x0_com don't configure clkman. That is pxa not provide clock
to com modules. Other pxa devices configures clock in pxaXXX_attach().
We have configure com clock for console only in BOARD_machdep.c.
Index: pxa2x0_com.c
===================================================================
RCS file: /cvsroot/src/sys/arch/arm/xscale/pxa2x0_com.c,v
retrieving revision 1.11
diff -u -r1.11 pxa2x0_com.c
--- pxa2x0_com.c 4 Aug 2009 12:11:33 -0000 1.11
+++ pxa2x0_com.c 2 Dec 2009 12:57:42 -0000
@@ -143,6 +143,7 @@
bus_space_tag_t iot;
bus_space_handle_t ioh;
bus_addr_t iobase;
+ int cken = 0;
sc->sc_dev = self;
iot = &pxa2x0_a4x_bs_tag; /* XXX: This sucks */
@@ -157,6 +158,14 @@
}
COM_INIT_REGS(sc->sc_regs, iot, ioh, iobase);
+ switch (pxa->pxa_addr) {
+ case PXA2X0_FFUART_BASE: cken = CKEN_FFUART; break;
+ case PXA2X0_STUART_BASE: cken = CKEN_STUART; break;
+ case PXA2X0_BTUART_BASE: cken = CKEN_BTUART; break;
+ case PXA2X0_HWUART_BASE: cken = CKEN_HWUART; break;
+ }
+ pxa2x0_clkman_config(cken, 1);
+
com_attach_subr(sc);
pxa2x0_intr_establish(pxa->pxa_intr, IPL_SERIAL, comintr, sc);
Next, we require to disable LCD controller before call
pxa2x0_lcd_initialize(). It wait to LCSR_LDD(LCD disable done), if
LCCR0_ENB(enable). Our boot-loader don't clear this registers after
reboot.
Index: pxa2x0_lcd.c
===================================================================
RCS file: /cvsroot/src/sys/arch/arm/xscale/pxa2x0_lcd.c,v
retrieving revision 1.27
diff -u -r1.27 pxa2x0_lcd.c
--- pxa2x0_lcd.c 29 Jan 2009 12:28:15 -0000 1.27
+++ pxa2x0_lcd.c 2 Dec 2009 12:57:42 -0000
@@ -247,6 +247,9 @@
return;
}
+ /* First, disable LCD Controller */
+ bus_space_write_4(iot, ioh, LCDC_LCCR0, 0);
+
pxa2x0_lcd_initialize(sc, geom);
if (pxa2x0_lcd_console.is_console) {
I will commit first patch at weekend.
The second patch not schedule yet. If you have any idea give me. ;-)
Thanks,
--
kiyohara
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