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powerpc/82xx: add SPI support for mgcoge 

Add spi support for mgcoge into the platform code and the dts
file. Additionaly SPIDEV is switched on in the defconfig and the
updates for the newer kernel version are committed. The SPI
interface is used to drive the Maxim DS3106 clock chip.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Heiko Schocher <hs@denx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
wifi-calibration
Holger Brunck 2012-05-08 15:57:22 +02:00 committed by Kumar Gala
parent 7ee0bf5336
commit 5d1d67e361
3 changed files with 32 additions and 8 deletions
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23
arch/powerpc/boot/dts/mgcoge.dts
View File

@ -222,6 +222,29 @@
interrupt-parent = <&PIC>;
usb-clock = <5>;
};
spi@11aa0 {
cell-index = <0>;
compatible = "fsl,spi", "fsl,cpm2-spi";
reg = <0x11a80 0x40 0x89fc 0x2>;
interrupts = <2 8>;
interrupt-parent = <&PIC>;
gpios = < &cpm2_pio_d 19 0>;
#address-cells = <1>;
#size-cells = <0>;
ds3106@1 {
compatible = "gen,spidev";
reg = <0>;
spi-max-frequency = <8000000>;
};
};
};
cpm2_pio_d: gpio-controller@10d60 {
#gpio-cells = <2>;
compatible = "fsl,cpm2-pario-bank";
reg = <0x10d60 0x14>;
gpio-controller;
};
cpm2_pio_c: gpio-controller@10d40 {

12
arch/powerpc/configs/mgcoge_defconfig
View File

@ -2,7 +2,6 @@ CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_SPARSE_IRQ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
@ -12,6 +11,7 @@ CONFIG_KALLSYMS_ALL=y
# CONFIG_PCSPKR_PLATFORM is not set
CONFIG_EMBEDDED=y
CONFIG_SLAB=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_IOSCHED_CFQ is not set
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_82xx=y
@ -49,12 +49,9 @@ CONFIG_PROC_DEVICETREE=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_NETDEVICES=y
CONFIG_FIXED_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_FS_ENET=y
CONFIG_FS_ENET_MDIO_FCC=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_FIXED_PHY=y
# CONFIG_WLAN is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
@ -64,6 +61,8 @@ CONFIG_SERIAL_CPM_CONSOLE=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_CPM=y
CONFIG_SPI=y
CONFIG_SPI_FSL_SPI=y
# CONFIG_HWMON is not set
CONFIG_USB_GADGET=y
CONFIG_USB_FSL_USB2=y
@ -80,8 +79,6 @@ CONFIG_SQUASHFS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_NLS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
@ -90,7 +87,6 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_DEBUG_INFO=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_BDI_SWITCH=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y

5
arch/powerpc/platforms/82xx/km82xx.c
View File

@ -128,6 +128,11 @@ static __initdata struct cpm_pin km82xx_pins[] = {
{3, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, /* TXP */
{3, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, /* TXN */
{3, 25, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* RXD */
/* SPI */
{3, 16, CPM_PIN_INPUT | CPM_PIN_SECONDARY},/* SPI_MISO PD16 */
{3, 17, CPM_PIN_INPUT | CPM_PIN_SECONDARY},/* SPI_MOSI PD17 */
{3, 18, CPM_PIN_INPUT | CPM_PIN_SECONDARY},/* SPI_CLK PD18 */
};
static void __init init_ioports(void)