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x86: galileo: enable shared IRQ support for I2C

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The DesignWare GPIO and I2C are PCI devices which share the same
IRQ line. This patch enables the shared IRQ support for I2C. GPIO
support is to be followed.

This also enables I2C for nanokernel on Galileo.

Change-Id: I66681d71899914bdcb35c4af649d077ffb8d7970
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2015-09-28 15:16:34 -07:00 • committed by Anas Nashif
commit 91ea542816
3 changed files with 22 additions and 0 deletions
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3
arch/x86/configs/micro_galileo_defconfig
View file

@ -15,6 +15,7 @@ CONFIG_GPIO=y
CONFIG_I2C=y CONFIG_I2C=y
CONFIG_I2C_DW=y CONFIG_I2C_DW=y
CONFIG_I2C_DW_0=y CONFIG_I2C_DW_0=y
CONFIG_I2C_DW_0_IRQ_SHARED=y
CONFIG_GPIO_PCAL9535A=y CONFIG_GPIO_PCAL9535A=y
CONFIG_GPIO_PCAL9535A_DEBUG=y CONFIG_GPIO_PCAL9535A_DEBUG=y
CONFIG_GPIO_MMIO=y CONFIG_GPIO_MMIO=y
@ -23,3 +24,5 @@ CONFIG_GPIO_MMIO_0_ACCESS_IO=y
CONFIG_GPIO_MMIO_1=y CONFIG_GPIO_MMIO_1=y
CONFIG_GPIO_MMIO_1_ACCESS_IO=y CONFIG_GPIO_MMIO_1_ACCESS_IO=y
CONFIG_I2C_DW_IRQ_LEVEL_LOW=y CONFIG_I2C_DW_IRQ_LEVEL_LOW=y
CONFIG_SHARED_IRQ=y
CONFIG_SHARED_IRQ_0_LEVEL_LOW=y

6
arch/x86/configs/nano_galileo_defconfig
View file

@ -11,6 +11,10 @@ CONFIG_UART_CONSOLE=y
CONFIG_HPET_TIMER_LEVEL_LOW=y CONFIG_HPET_TIMER_LEVEL_LOW=y
CONFIG_SERIAL_INTERRUPT_LOW=y CONFIG_SERIAL_INTERRUPT_LOW=y
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=25000000 CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=25000000
CONFIG_I2C=y
CONFIG_I2C_DW=y
CONFIG_I2C_DW_0=y
CONFIG_I2C_DW_0_IRQ_SHARED=y
CONFIG_GPIO=y CONFIG_GPIO=y
CONFIG_GPIO_PCAL9535A=y CONFIG_GPIO_PCAL9535A=y
CONFIG_GPIO_PCAL9535A_DEBUG=y CONFIG_GPIO_PCAL9535A_DEBUG=y
@ -23,3 +27,5 @@ CONFIG_GPIO_MMIO_0_ACCESS_IO=y
CONFIG_GPIO_MMIO_1=y CONFIG_GPIO_MMIO_1=y
CONFIG_GPIO_MMIO_1_ACCESS_IO=y CONFIG_GPIO_MMIO_1_ACCESS_IO=y
CONFIG_I2C_DW_IRQ_LEVEL_LOW=y CONFIG_I2C_DW_IRQ_LEVEL_LOW=y
CONFIG_SHARED_IRQ=y
CONFIG_SHARED_IRQ_0_LEVEL_LOW=y

13
arch/x86/platforms/galileo/Kconfig
View file

@ -53,6 +53,17 @@ config PINMUX
config I2C config I2C
def_bool y def_bool y
if SHARED_IRQ
config SHARED_IRQ_0
def_bool y
config SHARED_IRQ_0_NAME
default "SHARED_IRQ0"
config SHARED_IRQ_0_IRQ
default 18
config SHARED_IRQ_0_PRI
default 0
endif
if I2C if I2C
config I2C_CLOCK_SPEED config I2C_CLOCK_SPEED
default 25 default 25
@ -84,6 +95,8 @@ config I2C_DW_0_FUNCTION
default 2 default 2
config I2C_DW_0_BAR config I2C_DW_0_BAR
default 0 default 0
config I2C_DW_0_IRQ_SHARED_NAME
default "SHARED_IRQ0" if SHARED_IRQ
endif endif
if GPIO && I2C if GPIO && I2C