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[Bug 1001450] Kinetis HAL and driver upgrade
- From: bugzilla-daemon at bugs dot ecos dot sourceware dot org
- To: ecos-patches at ecos dot sourceware dot org
- Date: Mon, 13 Feb 2012 14:32:10 +0000
- Subject: [Bug 1001450] Kinetis HAL and driver upgrade
- Auto-submitted: auto-generated
- References: <bug-1001450-104@http.bugs.ecos.sourceware.org/>
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--- Comment #33 from Ilija Kocho <ilijak@siva.com.mk> 2012-02-13 14:32:06 GMT ---
(In reply to comment #32)
> Looking at the MMC bus cdl declaration in the TWR-K60N512 platform
> modifications patch:
>
> cdl_component CYGHWR_DEVS_DISK_MMC_FREESCALE_DSPI_BUS {
> ...
>
> requires CYGHWR_DEVS_SPI_FREESCALE_DSPI1 == 1
> ^^^^^^^
>
> That would seem to imply that only one device can be attached to the DSPI1 bus,
> which does not seem right? I think only the bus+cs combination needs to be
> unique, and this is already being enforced in the SPI driver patch.
No, it will only infer DSPI1 bus to became active. If another device requires
CYGHWR_DEVS_SPI_FREESCALE_DSPI1 it will infer the same. An OR function: if any
device requires CYGHWR_DEVS_SPI_FREESCALE_DSPI1, the DSPI1 becomes active. The
example is TWR-K60N512-FXM where MMC and SST25XX share the same SPI bus.
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