From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Cherian Subject: Re: [RFC PATCH] ARM: dts: am33xx: Re-arrange the USB dt to reflect the h/w configuration Date: Thu, 15 May 2014 11:38:36 +0530 Message-ID: <537459E4.5060203@ti.com> References: <1399617068-19826-1-git-send-email-george.cherian@ti.com> <20140514215034.GL27426@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20140514215034.GL27426@atomide.com> Sender: linux-kernel-owner@vger.kernel.org To: Tony Lindgren Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, linux@arm.linux.org.uk, galak@codeaurora.org, ijc+devicetree@hellion.org.uk, mark.rutland@arm.com, pawel.moll@arm.com, robh+dt@kernel.org, bcousson@baylibre.com, ezequiel@vanguardiasur.com.ar, bigeasy@linutronix.de, yegorslists@googlemail.com, balbi@ti.com List-Id: devicetree@vger.kernel.org Hi Tony, On 5/15/2014 3:20 AM, Tony Lindgren wrote: > * George Cherian [140508 23:34]: >> Re arrange the USB dt for AM33xx to take it a bit closer >> to the hardware configuration. >> >> The USBSS is designed as follows >> >> USB control Module 0x44e10_0620 >> >> USBSS 0x4740_0000 >> >> USB0 0x4740_1000 >> USB0_PHY 0x4740_1300 >> USB0_CORE 0x4740_1400 >> >> USB1 0x4740_1800 >> USB1_PHY 0x4740_1b00 >> USB1_CORE 0x4740_1c00 >> >> CPPI DMA Controller 0x4740_2000 >> CPPI DMA Scheduler 0x4740_3000 >> Queue Manager 0x4740_4000 >> >> So model the DT as follows >> USBSS { >> usb_ctrl_mod: { >> 0x44e10_0620 >> } >> usb0: { >> 0x4740_1000 >> 0x4740_1400 >> } >> usb0_phy:{ >> 0x4740_1300 >> } >> usb1:{ >> 0x4740_1800 >> 0x4740_1c00 >> } >> usb1_phy: { >> 0x4740_1b00 >> } >> cppi41dma: { >> 0x4740_2000 >> 0x4740_3000 >> 0x4740_4000 >> } >> } > Is this just a cosmetic change or is this trying to workaround > some edma related init order issue? Please ignore this patch. Was trying to workaround some dma and phy related issues. The same got fixed with following http://www.spinics.net/lists/linux-usb/msg107244.html > > Regards, > > Tony -- -George