> -----Original Message----- > From: u-boot-boun...@lists.denx.de > [mailto:u-boot-boun...@lists.denx.de] On Behalf Of Syed > Mohammed, Khasim > Sent: Tuesday, January 12, 2010 11:35 AM > To: beaglebo...@googlegroups.com > Cc: u-boot@lists.denx.de > Subject: Re: [U-Boot] [beagleboard] RE: TI:OMAP: [PATCH] Add > 720Mhz support for Beagle Rev C4 > > On Mon, Jan 11, 2010 at 10:52 PM, Premi, Sanjeev <pr...@ti.com> wrote: > >> -----Original Message----- > >> From: u-boot-boun...@lists.denx.de > >> [mailto:u-boot-boun...@lists.denx.de] On Behalf Of Khasim > >> Syed Mohammed > >> Sent: Saturday, January 09, 2010 10:17 AM > >> To: u-boot@lists.denx.de; beaglebo...@googlegroups.com > >> Subject: [U-Boot] TI:OMAP: [PATCH] Add 720Mhz support for > >> Beagle Rev C4 > >> > >> From e28c5e917f9504b724b6587287ad9e1eb0682b11 Mon Sep 17 > 00:00:00 2001 > >> From: Syed Mohammed Khasim <kha...@ti.com> > >> Date: Sat, 9 Jan 2010 09:40:32 +0530 > >> Subject: [PATCH] Add 720Mhz support for Beagle Rev C4 > >> > >> Use the Generic TWL and Clock APIs to get beagle > >> Rev C4 running at 720Mhz > >> > >> Signed-off-by: Syed Mohammed Khasim <kha...@ti.com> > >> --- > >> board/ti/beagle/beagle.c | 20 ++++++++++++++++++-- > >> 1 files changed, 18 insertions(+), 2 deletions(-) > >> > >> diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c > >> index 0def5a6..7985ee9 100644 > >> --- a/board/ti/beagle/beagle.c > >> +++ b/board/ti/beagle/beagle.c > >> @@ -122,9 +122,27 @@ int misc_init_r(void) > >> struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; > >> struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; > >> > >> + beagle_identify(); > >> + > >> twl4030_power_init(); > >> twl4030_led_init(); > >> > >> + if (beagle_revision == REVISION_C4) { > >> + > >> + /* Select TWL4030 VSEL to support 720Mhz */ > >> + > >> twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, > >> + VAUX2_VSEL_18, > >> + > >> TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, > >> + DEV_GRP_P1); > >> + > >> + > twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VDD1_VSEL, > >> + VDD1_VSEL_14, > >> + > >> TWL4030_PM_RECEIVER_VDD1_DEV_GRP, > >> + DEV_GRP_P1); > >> + > >> + prcm_config_720mhz(); > >> + } > >> + > >> /* Configure GPIOs to output */ > >> writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), > >> &gpio6_base->oe); > >> writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 > | GPIO21 | > >> @@ -136,8 +154,6 @@ int misc_init_r(void) > >> writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | > >> GPIO15 | GPIO14 | GPIO13 | GPIO12, > >> &gpio5_base->setdataout); > >> > >> - beagle_identify(); > >> - > >> dieid_num_r(); > > > > Khasim, > > > > I am not clear about the beagle revisions, but I feel it > will be better to > > check the silicon capability for 720MHz to do the scaling. > This patch will > > need to be updated if there is C5 which also supports 720MHz. > > > I was looking for documentation / addendum that points to change in > silicon revisions - unfortunately I didn't find any. > > I agree that we can base this on Silicon Rev instead of board rev. > Will change this when I get the documentation for the same.
Khasim, The steps are defined in the latest TRM. Best regards, Sanjeev > Thanks for the review. > > Regards, > Khasim > > >> > >> return 0; > >> -- > >> 1.5.6.3 > >> _______________________________________________ > >> U-Boot mailing list > >> U-Boot@lists.denx.de > >> http://lists.denx.de/mailman/listinfo/u-boot > >> > > -- > > You received this message because you are subscribed to the > Google Groups "Beagle Board" group. > > To post to this group, send email to beaglebo...@googlegroups.com. > > To unsubscribe from this group, send email to > beagleboard+unsubscr...@googlegroups.com. > > For more options, visit this group at > http://groups.google.com/group/beagleboard?hl=en. > > > > > > > > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
