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SubjectRe: [PATCH 3/3] ARM: pxa168/teton bga: add board support for i2c and rtc-ds1337
Date
Dne St 8. září 2010 07:34:24 Haojian Zhuang napsal(a):
> On Wed, Sep 8, 2010 at 10:56 AM, Mark F. Brown <mark.brown314@gmail.com>
wrote:
> > Signed-off-by: Mark F. Brown <mark.brown314@gmail.com>
> > ---
> > arch/arm/mach-mmp/teton_bga.c | 10 ++++++++++
> > 1 files changed, 10 insertions(+), 0 deletions(-)
> >
> > diff --git a/arch/arm/mach-mmp/teton_bga.c
> > b/arch/arm/mach-mmp/teton_bga.c index bbeda5c..8e5801c 100644
> > --- a/arch/arm/mach-mmp/teton_bga.c
> > +++ b/arch/arm/mach-mmp/teton_bga.c
> > @@ -22,6 +22,7 @@
> > #include <mach/gpio.h>
> > #include <linux/input.h>
> > #include <plat/pxa27x_keypad.h>
> > +#include <linux/i2c.h>
> >
> > #include "common.h"
> >
> > @@ -35,6 +36,10 @@ static unsigned long teton_bga_pin_config[] __initdata
> > = { GPIO110_KP_MKIN0,
> > GPIO111_KP_MKOUT7,
> > GPIO112_KP_MKOUT6,
> > +
> > + /* i2c bus */
> > + GPIO105_CI2C_SDA,
> > + GPIO106_CI2C_SCL,
> > };
> >
> > static unsigned int teton_bga_matrix_key_map[] = {
> > @@ -52,6 +57,10 @@ static struct pxa27x_keypad_platform_data
> > teton_bga_keypad_info __initdata = { .debounce_interval = 30,
> > };
> >
> > +static struct i2c_board_info teton_bga_i2c_info[] __initdata = {
> > + { I2C_BOARD_INFO("ds1337", 0x68), },
> > +};
> > +
>
> I don't have the schematic of teton. But RTC chips should always has
> an irq pin. Is it also connected in your platform?

I think this one doesn't, but I haven't checked.

Cheers

>
> > static void __init teton_bga_init(void)
> > {
> > mfp_config(ARRAY_AND_SIZE(teton_bga_pin_config));
> > @@ -59,6 +68,7 @@ static void __init teton_bga_init(void)
> > /* on-chip devices */
> > pxa168_add_uart(1);
> > pxa168_add_keypad(&teton_bga_keypad_info);
> > + pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(teton_bga_i2c_info));
> > }
> >
> > MACHINE_START(TETON_BGA, "PXA168-based Teton BGA Development Platform")
> > --
> > 1.7.0.4
> >
> > --
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