ARM: SPEAr3xx: Add device-tree support to SPEAr3xx architecture

This patch adds a generic target for SPEAr3xx machines that can be configured
via the device-tree. Currently the following devices are supported via the
devicetree:

- VIC interrupts
- PL011 UART
- PL061 GPIO
- PL110 CLCD
- SP805 WDT
- Synopsys DW I2C
- Synopsys DW ethernet
- ST FSMC-NAND
- ST SPEAR-SMI
- ST SPEAR-KEYBOARD
- ST SPEAR-RTC
- ARASAN SDHCI-SPEAR
- SPEAR-EHCI
- SPEAR-OHCI

Other peripheral devices will follow in later patches.

This also removes IO_ADDRESS macro and creates 16 MB static mappings instead of
4K for individual peripherals. This is done to have efficient TLB lookup for any
I/O windows that are located closely together. ioremap() on this range will
return this mapping only instead of creating another.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>

1 files changed, 107 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/spear310-evb.dts b/arch/arm/boot/dts/spear310-evb.dts
new file mode 100644
index 000000000000..ec19d7b9795a
--- /dev/null
+++ b/arch/arm/boot/dts/spear310-evb.dts
@@ -0,0 +1,107 @@
+/*
+ * DTS file for SPEAr310 Evaluation Baord
+ *
+ * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+/include/ "spear310.dtsi"
+
+/ {
+        model = "ST SPEAr310 Evaluation Board";
+        compatible = "st,spear310-evb", "st,spear310";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        memory {
+                reg = <0 0x40000000>;
+        };
+
+        ahb {
+                fsmc: flash@44000000 {
+                        status = "okay";
+                };
+
+                gmac: eth@e0800000 {
+                        status = "okay";
+                };
+
+                smi: flash@fc000000 {
+                        status = "okay";
+                        clock-rate=<50000000>;
+
+                        flash@f8000000 {
+                                label = "m25p64";
+                                reg = <0xf8000000 0x800000>;
+                                #address-cells = <1>;
+                                #size-cells = <1>;
+                                st,smi-fast-mode;
+                        };
+                };
+
+                spi0: spi@d0100000 {
+                        status = "okay";
+                };
+
+                ehci@e1800000 {
+                        status = "okay";
+                };
+
+                ohci@e1900000 {
+                        status = "okay";
+                };
+
+                ohci@e2100000 {
+                        status = "okay";
+                };
+
+                apb {
+                        gpio0: gpio@fc980000 {
+                               status = "okay";
+                        };
+
+                        i2c0: i2c@d0180000 {
+                               status = "okay";
+                        };
+
+                        rtc@fc900000 {
+                               status = "okay";
+                        };
+
+                        serial@d0000000 {
+                               status = "okay";
+                        };
+
+                        serial@b2000000 {
+                               status = "okay";
+                        };
+
+                        serial@b2080000 {
+                               status = "okay";
+                        };
+
+                        serial@b2100000 {
+                               status = "okay";
+                        };
+
+                        serial@b2180000 {
+                               status = "okay";
+                        };
+
+                        serial@b2200000 {
+                               status = "okay";
+                        };
+
+                        wdt@fc880000 {
+                               status = "okay";
+                        };
+                };
+        };
+};