[U-Boot] [PATCH] t1040d4rdb: assign muxed pins to qe-tdm when set hwconfig qe-tdm

[Zhao Qiang]

On Thu 8/27/2015 2:36 pm, Kushwaha Prabhakar-B32579 wrote:
> -----Original Message-----
> From: Kushwaha Prabhakar-B32579
> Sent: Thursday, August 27, 2015 2:36 PM
> To: Zhao Qiang-B45475
> Cc: u-boot at lists.denx.de; Sun York-R58495; Jain Priyanka-B32167; Zhao
> Qiang-B45475
> Subject: RE: [PATCH] t1040d4rdb: assign muxed pins to qe-tdm when set
> hwconfig qe-tdm
> 
> > -----Original Message-----
> > From: Zhao Qiang [mailto:qiang.zhao at freescale.com]
> > Sent: Thursday, August 27, 2015 10:56 AM
> > To: Kushwaha Prabhakar-B32579 <prabhakar at freescale.com>
> > Cc: u-boot at lists.denx.de; Sun York-R58495 <yorksun at freescale.com>;
> > Jain
> > Priyanka-B32167 <Priyanka.Jain at freescale.com>; Zhao Qiang-B45475
> > <qiang.zhao at freescale.com>
> > Subject: [PATCH] t1040d4rdb: assign muxed pins to qe-tdm when set
> > hwconfig qe-tdm
> >
> > qe-tdm is muxed with diu, if hwconfig setted as qe-tdm, assign muxed
> > pins to qe-tdm, then delete diu node from device tree.
> >
> > Signed-off-by: Zhao Qiang <qiang.zhao at freescale.com>
> > ---
> >  board/freescale/t104xrdb/cpld.h     |  1 +
> >  board/freescale/t104xrdb/t104xrdb.c | 19 +++++++++++++++++++
> >  2 files changed, 20 insertions(+)
> >
> > diff --git a/board/freescale/t104xrdb/cpld.h
> > b/board/freescale/t104xrdb/cpld.h index 2fb4105..86de26c 100644
> > --- a/board/freescale/t104xrdb/cpld.h
> > +++ b/board/freescale/t104xrdb/cpld.h
> > @@ -44,3 +44,4 @@ void cpld_write(unsigned int reg, u8 value);
> >  		cpld_write(offsetof(struct cpld_data, reg), value)
> >  #define MISC_CTL_SG_SEL		0x80
> >  #define MISC_CTL_AURORA_SEL	0x02
> > +#define MISC_MUX_QE_TDM		0xc0
> > diff --git a/board/freescale/t104xrdb/t104xrdb.c
> > b/board/freescale/t104xrdb/t104xrdb.c
> > index d982dfc..1759d1f 100644
> > --- a/board/freescale/t104xrdb/t104xrdb.c
> > +++ b/board/freescale/t104xrdb/t104xrdb.c
> > @@ -6,6 +6,7 @@
> >
> >  #include <common.h>
> >  #include <command.h>
> > +#include <hwconfig.h>
> >  #include <netdev.h>
> >  #include <linux/compiler.h>
> >  #include <asm/mmu.h>
> > @@ -110,6 +111,12 @@ int misc_init_r(void)
> >  					 MISC_CTL_SG_SEL |
> > MISC_CTL_AURORA_SEL);
> >
> >  #if defined(CONFIG_T1040D4RDB)
> > +	if (hwconfig("qe-tdm")) {
> > +		CPLD_WRITE(sfp_ctl_status, CPLD_READ(sfp_ctl_status) |
> > +			   MISC_MUX_QE_TDM);
> > +		printf("QECSR : 0x%02x, mux to qe-tdm\n",
> > +		       CPLD_READ(sfp_ctl_status));
> > +	}
> >  	/* Mask all CPLD interrupt sources, except QSGMII interrupts */
> >  	if (CPLD_READ(sw_ver) < 0x03) {
> >  		debug("CPLD SW version 0x%02x doesn't support int_mask\n", @@
> > -123,6 +130,16 @@ int misc_init_r(void)
> >  	return 0;
> >  }
> >
> > +void fdt_del_diu(void *blob)
> > +{
> > +	int nodeoff = 0;
> > +
> > +	while ((nodeoff = fdt_node_offset_by_compatible(blob, 0,
> > +				"fsl,diu")) >= 0) {
> > +		fdt_del_node(blob, nodeoff);
> > +	}
> > +}
> > +
> 
> Can this be moved in arch/powerpc for SoC to leverage this piece of code?

How about to add new files arch/powerpc/include/asm/fdt.h and arch/powerpc/lib/fdt.c, and put the code into the files, Or do you have some better place to recommend?

> 
> --prabhakar