From mboxrd@z Thu Jan 1 00:00:00 1970 From: zajec5@gmail.com (=?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?=) Date: Sat, 7 May 2011 19:20:18 +0200 Subject: [PATCH][WAS:bcmai, axi] bcma: add Broadcom specific AMBA bus driver In-Reply-To: <4DC57B81.6030705@broadcom.com> References: <1304632783-8781-1-git-send-email-zajec5@gmail.com> <201105061605.31625.arnd@arndb.de> <1304776555.16344.2.camel@maggie> <4DC57383.3050903@broadcom.com> <4DC57B81.6030705@broadcom.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 2011/5/7 Arend van Spriel : > On 05/07/2011 06:49 PM, Rafa? Mi?ecki wrote: >> >> 2011/5/7 Arend van Spriel: >>> >>> On 05/07/2011 03:55 PM, Michael B?sch wrote: >>>>> >>>>> Arnd: did you have a look at defines at all? >>>>> >>>>> Most of the defines have values in range 0x800 ? 0x837. Converting >>>>> this to array means loosing 0x800 u16 entries. We can not use 0x800 >>>>> offset, because there are also some defined between 0x000 and 0x800: >>>>> #define BCMA_CORE_OOB_ROUTER ? ? ? ? ? 0x367 ? /* Out of band */ >>>>> #define BCMA_CORE_INVALID ? ? ? ? ? ? ?0x700 >>> >>> Please be aware that the core identifier itself is not unique (in the >>> current list they are). In the scan the BCMA_CORE_OOB_ROUTER will always >>> show BCMA_MANUF_ARM (did not look up the proper manufacturer define but >>> you >>> get the idea, i hope). >> >> Unfortunately, I don't. Could you explain this? How core identified >> can be not unique? Can 0x800 mean ChipCommon but also SuperPCIeX? > > Yes, if ChipCommon is Broadcom core and SuperPCIeX is ARM core (or some > other). The core identifiers are chosen by a chip manufacturer (eg. Broadcom > ;-) ). They are not unique by itself so that is why the bcma_device_id > consists of manufacturer, id, rev, and class. Providing a device table with > ANY_MANUF would be a bad idea. OK, we use MANUF in identification... so where is the problem? ;) My testing patch for b43 "subscribes" for Broadcom's cores only: static const struct bcma_device_id b43_bcma_tbl[] = { BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x17, BCMA_ANY_CLASS), BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x18, BCMA_ANY_CLASS), BCMA_CORETABLE_END }; -- Rafa?