From: "George Pontis" <GPontis@z9.com>
To: barebox@lists.infradead.org
Subject: RE: i.MX53, add access to third I2C peripheral
Date: Mon, 4 Feb 2013 16:31:20 -0800 [thread overview]
Message-ID: <005301ce0338$1e5e1fe0$5b1a5fa0$@com> (raw)
In-Reply-To: <1360004939.170907890@f389.i.mail.ru>
> -----Original Message-----
> From: Alexander Shiyan [mailto:shc_work@mail.ru]
> Sent: Monday, February 04, 2013 11:09 AM
> To: George Pontis
> Cc: barebox@lists.infradead.org
> Subject: Re: i.MX53, add access to third I2C peripheral
>
> > All versions of the i.MX53 have three I2C peripherals. This patch
> provides
> > access to it.
> ...
> > +static inline struct device_d *imx53_add_i2c2(struct
> i2c_platform_data
> > *pdata)
> > +{
> > + return imx_add_i2c((void *)MX53_I2C2_BASE_ADDR, 2, pdata);
> > +}
> > +
> MX53_I2C3_BASE_ADDR ?
>
> ---
Thanks for the correction Alex. I also forgot to handle the clock for this new peripheral. With both in place, a device on the third bus is recognized at boot and listed by devinfo.
diff -Naur bb.a/arch/arm/mach-imx/include/mach/devices-imx53.h bb.b/arch/arm/mach-imx/include/mach/devic
es-imx53.h
--- bb.a/arch/arm/mach-imx/include/mach/devices-imx53.h 2013-02-04 06:24:51.000000000 -0800
+++ bb.b/arch/arm/mach-imx/include/mach/devices-imx53.h 2013-02-03 22:24:26.930091420 -0800
@@ -21,6 +21,11 @@
return imx_add_i2c((void *)MX53_I2C2_BASE_ADDR, 1, pdata);
}
+static inline struct device_d *imx53_add_i2c2(struct i2c_platform_data *pdata)
+{
+ return imx_add_i2c((void *)MX53_I2C3_BASE_ADDR, 2, pdata);
+}
+
static inline struct device_d *imx53_add_uart0(void)
{
return imx_add_uart_imx21((void *)MX53_UART1_BASE_ADDR, 0);
diff -Naur bb.a/arch/arm/mach-imx/clk-imx5.c bb.b/arch/arm/mach-imx/clk-imx5.c
--- bb.a/arch/arm/mach-imx/clk-imx5.c 2013-02-04 06:24:51.000000000 -0800
+++ bb.b/arch/arm/mach-imx/clk-imx5.c 2013-02-04 16:14:04.729284183 -0800
@@ -272,6 +272,7 @@
clkdev_add_physbase(clks[uart_root], MX53_UART3_BASE_ADDR, NULL);
clkdev_add_physbase(clks[per_root], MX53_I2C1_BASE_ADDR, NULL);
clkdev_add_physbase(clks[per_root], MX53_I2C2_BASE_ADDR, NULL);
+ clkdev_add_physbase(clks[per_root], MX53_I2C3_BASE_ADDR, NULL);
clkdev_add_physbase(clks[per_root], MX53_GPT1_BASE_ADDR, NULL);
clkdev_add_physbase(clks[ipg], MX53_CSPI_BASE_ADDR, NULL);
clkdev_add_physbase(clks[ecspi_podf], MX53_ECSPI1_BASE_ADDR, NULL);
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next prev parent reply other threads:[~2013-02-05 0:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-04 19:04 George Pontis
2013-02-04 19:08 ` Alexander Shiyan
2013-02-05 0:31 ` George Pontis [this message]
2013-02-05 8:52 ` Sascha Hauer
2013-02-05 17:48 ` i.MX53, add access to third I2C peripheral ( resubmit with Signed-off tag ) George Pontis
2013-02-06 18:48 ` Sascha Hauer
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