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ARM: ux500: Enable PL022 SSP Controller in Device Tree 

This SSP Controller supports a number of serial communication methods
and as such cannot be registered using of_register_spi_devices.
Instead we register it simply as a primecell device.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
hifive-unleashed-5.1
Lee Jones 2012-03-15 16:47:11 +00:00 committed by Arnd Bergmann
parent f1949ea0d1
commit 15daf691e8
2 changed files with 6 additions and 3 deletions
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3
arch/arm/boot/dts/db8500.dtsi
View File

@ -204,7 +204,10 @@
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
// Add one of these for each child device
cs-gpios = <&gpio0 31 &gpio4 14 &gpio4 16 &gpio6 22 &gpio7 0>;
};
uart@80120000 {

6
arch/arm/mach-ux500/board-mop500.c
View File

@ -443,7 +443,7 @@ static struct stedma40_chan_cfg ssp0_dma_cfg_tx = {
};
#endif
static struct pl022_ssp_controller ssp0_platform_data = {
static struct pl022_ssp_controller ssp0_plat = {
.bus_id = 0,
#ifdef CONFIG_STE_DMA40
.enable_dma = 1,
@ -461,7 +461,7 @@ static struct pl022_ssp_controller ssp0_platform_data = {
static void __init mop500_spi_init(struct device *parent)
{
db8500_add_ssp0(parent, &ssp0_platform_data);
db8500_add_ssp0(parent, &ssp0_plat);
}
#ifdef CONFIG_STE_DMA40
@ -749,6 +749,7 @@ struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", &uart0_plat),
OF_DEV_AUXDATA("arm,pl011", 0x80121000, "uart1", &uart1_plat),
OF_DEV_AUXDATA("arm,pl011", 0x80007000, "uart2", &uart2_plat),
OF_DEV_AUXDATA("arm,pl022", 0x80002000, "ssp0", &ssp0_plat),
{},
};
@ -804,7 +805,6 @@ static void __init u8500_init_machine(void)
hrefv60_sdi_init(parent);
}
mop500_i2c_init(parent);
mop500_spi_init(parent);
i2c_register_board_info(0, mop500_i2c0_devices, i2c0_devs);
i2c_register_board_info(2, mop500_i2c2_devices,