From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 6/8] tegra2: Implement SPI / UART GPIO switch
Date: Thu, 20 Oct 2011 16:06:45 -0400 [thread overview]
Message-ID: <201110201606.46460.vapier@gentoo.org> (raw)
In-Reply-To: <1319137409-4132-7-git-send-email-sjg@chromium.org>
On Thursday 20 October 2011 15:03:27 Simon Glass wrote:
> The Tegra2 Seaboard has the unfortunate feature that SPI and the console
> UART are multiplexed on the same pins. We need to switch between one
> and the other during SPI and console activity.
so how does printf()/debug() work in the spi driver ? or it doesn't ?
> owns the pins. It also flips over the controlling GPIO as needed
missing period at the end here
> --- /dev/null
> +++ b/board/nvidia/common/Makefile
>
> +clean:
> + rm -f $(SOBJS) $(OBJS)
> +
> +distclean: clean
> + rm -f $(LIB) core *.bak $(obj).depend
dead code
> --- /dev/null
> +++ b/board/nvidia/common/uart-spi-fix.c
maybe call it "uart-spi-switch" ?
> --- a/board/nvidia/seaboard/Makefile
> +++ b/board/nvidia/seaboard/Makefile
> @@ -31,7 +31,6 @@ endif
> LIB = $(obj)lib$(BOARD).o
>
> COBJS := $(BOARD).o
> -COBJS += ../common/board.o
>
> SRCS := $(COBJS:.o=.c)
> OBJS := $(addprefix $(obj),$(COBJS))
unrelated change sneak in ?
> --- /dev/null
> +++ b/include/uart-spi-fix.h
i can't see this being a general thing, so probably best to keep in the tegra-
specific subdirs
-mike
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next prev parent reply other threads:[~2011-10-20 20:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-20 19:03 [U-Boot] [PATCH 0/8] tegra2: Implement SPI flash and saved environment Simon Glass
2011-10-20 19:03 ` [U-Boot] [PATCH 1/8] tegra2: Tidy UART selection Simon Glass
2011-10-20 19:03 ` [U-Boot] [PATCH 2/8] tegra2: Add UARTB support Simon Glass
2011-10-20 19:03 ` [U-Boot] [PATCH 3/8] tegra2: spi: Add SPI driver for SPIFLASH on Seaboard Simon Glass
2011-10-20 20:03 ` Mike Frysinger
2011-10-20 23:02 ` Simon Glass
2011-10-20 19:03 ` [U-Boot] [PATCH 4/8] tegra2: config: Enable SPI flash " Simon Glass
2011-10-20 19:03 ` [U-Boot] [PATCH 5/8] tegra2: Enable SPI environment " Simon Glass
2011-10-20 19:31 ` Tom Warren
2011-10-20 19:58 ` Simon Glass
2011-10-20 20:49 ` Tom Warren
2011-10-20 19:03 ` [U-Boot] [PATCH 6/8] tegra2: Implement SPI / UART GPIO switch Simon Glass
2011-10-20 20:06 ` Mike Frysinger [this message]
2011-10-20 20:08 ` Mike Frysinger
2011-10-20 19:03 ` [U-Boot] [PATCH 7/8] tegra2: spi: Support SPI / UART switch Simon Glass
2011-10-20 20:08 ` Mike Frysinger
2011-10-20 19:03 ` [U-Boot] [PATCH 8/8] tegra2: Create SPI/UART switch code Simon Glass
2011-10-20 20:09 ` Mike Frysinger
2011-10-20 20:23 ` Simon Glass
2011-10-20 20:34 ` Mike Frysinger
2011-10-20 20:44 ` Simon Glass
2011-10-20 20:50 ` Mike Frysinger
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