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| author |   Eric Miao <eric.miao@marvell.com> | 2008-11-26 18:12:04 +0800 |
|---|---|---|
| committer | Eric Miao <eric.miao@marvell.com> | 2008-12-02 14:42:37 +0800 |
| commit | 067455aa53a55404ded85227e87436478c2acc63 (patch) | |
| tree | 44e1deef3e364e45199cdd7abade384bde6e6164 /arch/arm/mach-pxa/include/mach/mfp-pxa25x.h | |
| parent | Revert "[ARM] pxa: introduce cpu_is_pxa26x()" (diff) | |
| download | linux-dev-067455aa53a55404ded85227e87436478c2acc63.tar.xz linux-dev-067455aa53a55404ded85227e87436478c2acc63.zip | |
[ARM] pxa: add support for additional GPIOs on PXA26x
Original patch from Marek Vasut, the problems with PXA26x are:
1. there are additional 4 GPIOs 86,87,88,89 have their direction bits
inverted in GPDR2, as well as their alternate function bits being
'1' for their GPIO functionality in GAFRx
2. there is no easy way to decide if the processor is a pxa26x or a
pxa250/pxa255 at run-time, so the assumption here is the pxa26x
will be treated as one of the pxa25x variants, and board code
should have a better knowledge of the processor it is featured
Introduce pxa26x_init_irq() for the second purpose, and treat the
additional GPIOs > 85 on PXA25x specially.
Kconfig option CONFIG_CPU_PXA26x is introduced to optimize the code
a bit when PXA26x support isn't needed. Board config options have
to select this to enable the support for PXA26x.
__gpio_is_inverted() will be optimized way when CONFIG_CPU_PXA26x
isn't selected.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/mfp-pxa25x.h')
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/mfp-pxa25x.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa25x.h b/arch/arm/mach-pxa/include/mach/mfp-pxa25x.h index 617cab2cc8d0..a72869b73ee3 100644 --- a/arch/arm/mach-pxa/include/mach/mfp-pxa25x.h +++ b/arch/arm/mach-pxa/include/mach/mfp-pxa25x.h @@ -158,4 +158,35 @@ #define GPIO76_LCD_PCLK MFP_CFG_OUT(GPIO76, AF2, DRIVE_LOW) #define GPIO77_LCD_BIAS MFP_CFG_OUT(GPIO77, AF2, DRIVE_LOW) +#ifdef CONFIG_CPU_PXA26x +/* GPIO */ +#define GPIO85_GPIO MFP_CFG_IN(GPIO85, AF0) +#define GPIO86_GPIO MFP_CFG_IN(GPIO86, AF1) +#define GPIO87_GPIO MFP_CFG_IN(GPIO87, AF1) +#define GPIO88_GPIO MFP_CFG_IN(GPIO88, AF1) +#define GPIO89_GPIO MFP_CFG_IN(GPIO89, AF1) + +/* SDRAM */ +#define GPIO86_nSDCS2 MFP_CFG_OUT(GPIO86, AF0, DRIVE_HIGH) +#define GPIO87_nSDCS3 MFP_CFG_OUT(GPIO87, AF0, DRIVE_HIGH) +#define GPIO88_RDnWR MFP_CFG_OUT(GPIO88, AF0, DRIVE_HIGH) +#define GPIO89_nACRESET MFP_CFG_OUT(GPIO89, AF0, DRIVE_HIGH) + +/* USB */ +#define GPIO9_USB_RCV MFP_CFG_IN(GPIO9, AF1) +#define GPIO32_USB_VP MFP_CFG_IN(GPIO32, AF2) +#define GPIO34_USB_VM MFP_CFG_IN(GPIO34, AF2) +#define GPIO39_USB_VPO MFP_CFG_OUT(GPIO39, AF3, DRIVE_LOW) +#define GPIO56_USB_VMO MFP_CFG_OUT(GPIO56, AF1, DRIVE_LOW) +#define GPIO57_USB_nOE MFP_CFG_OUT(GPIO57, AF1, DRIVE_HIGH) + +/* ASSP */ +#define GPIO28_ASSP_BITCLK_IN MFP_CFG_IN(GPIO28, AF3) +#define GPIO28_ASSP_BITCLK_OUT MFP_CFG_OUT(GPIO28, AF3, DRIVE_LOW) +#define GPIO29_ASSP_RXD MFP_CFG_IN(GPIO29, AF3) +#define GPIO30_ASSP_TXD MFP_CFG_OUT(GPIO30, AF3, DRIVE_LOW) +#define GPIO31_ASSP_SFRM_IN MFP_CFG_IN(GPIO31, AF1) +#define GPIO31_ASSP_SFRM_OUT MFP_CFG_OUT(GPIO31, AF3, DRIVE_LOW) +#endif + #endif /* __ASM_ARCH_MFP_PXA25X_H */ |