[PATCH 4/4 v4] ARM: at91: sam9g45 add spi DT support
Jean-Christophe PLAGNIOL-VILLARD
plagnioj at jcrosoft.com
Wed Mar 7 07:23:09 EST 2012
at91sam9m10g45ek:
add dataflash support
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre at atmel.com>
---
arch/arm/boot/dts/at91sam9g45.dtsi | 18 ++++++++++++++++++
arch/arm/boot/dts/at91sam9m10g45ek.dts | 23 +++++++++++++++++++++++
arch/arm/mach-at91/at91sam9g45.c | 2 ++
3 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index 7a685f9..8a11530 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -271,6 +271,24 @@
atmel,can-isoc = <1>;
};
};
+
+ spi0: spi at fffa4000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "atmel,at91rm9200-spi";
+ reg = <0xfffa4000 0x4000>;
+ interrupts = <14 4>;
+ status = "disabled";
+ };
+
+ spi1: spi at fffa8000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "atmel,at91rm9200-spi";
+ reg = <0xfffa8000 0x4000>;
+ interrupts = <15 4>;
+ status = "disabled";
+ };
};
nand0: nand at 40000000 {
diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
index b9382e3..2b96ab2 100644
--- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
+++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
@@ -51,6 +51,29 @@
atmel,vbus-gpio = <&pioB 19 0>;
status = "okay";
};
+
+ spi0: spi at fffa4000 {
+ cs-gpios = <&pioB 3 0>;
+ status = "okay";
+ flash: at45db321d at 0 {
+ compatible = "atmel,at45db321d", "atmel,at45", "atmel,dataflash";
+ reg = <0>;
+ spi-max-frequency = <15000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition at 0 {
+ label = "U-Boot";
+ reg = <0x0 0x40110>;
+ read-only;
+ };
+
+ partition at 40110 {
+ label = "Kernel";
+ reg = <0x40110 0x3dfef0>;
+ };
+ };
+ };
};
nand0: nand at 40000000 {
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index da80f0c..06547bf 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -236,6 +236,8 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("ehci_clk", "800000.ehci", &uhphs_clk),
CLKDEV_CON_DEV_ID("hclk", "600000.gadget", &utmi_clk),
CLKDEV_CON_DEV_ID("pclk", "600000.gadget", &udphs_clk),
+ CLKDEV_CON_DEV_ID("spi_clk", "fffa4000.spi", &spi0_clk),
+ CLKDEV_CON_DEV_ID("spi_clk", "fffa8000.spi", &spi1_clk),
/* fake hclk clock */
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &uhphs_clk),
CLKDEV_CON_ID("pioA", &pioA_clk),
--
1.7.7
More information about the linux-arm-kernel
mailing list