[ARM] add Marvell Loki (88RC8480) SoC support
The Marvell Loki (88RC8480) is an ARM SoC based on a Feroceon CPU
core running at between 400 MHz and 1.0 GHz, and features a 64 bit
DDR controller, 512K of internal SRAM, two x4 PCI-Express ports,
two Gigabit Ethernet ports, two 4x SAS/SATA controllers, two UARTs,
two TWSI controllers, and IDMA/XOR engines.
This patch adds support for the Marvell LB88RC8480 Development
Board, enabling the use of the PCIe interfaces, the ethernet
interfaces, the TWSI interfaces and the UARTs.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
diff --git a/include/asm-arm/arch-loki/entry-macro.S b/include/asm-arm/arch-loki/entry-macro.S
new file mode 100644
index 0000000..693257c
--- /dev/null
+++ b/include/asm-arm/arch-loki/entry-macro.S
@@ -0,0 +1,30 @@
+/*
+ * include/asm-arm/arch-loki/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Marvell Loki (88RC8480) platforms
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <asm/arch/loki.h>
+
+ .macro disable_fiq
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+ .macro get_irqnr_preamble, base, tmp
+ ldr \base, =IRQ_VIRT_BASE
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ ldr \irqstat, [\base, #IRQ_CAUSE_OFF]
+ ldr \tmp, [\base, #IRQ_MASK_OFF]
+ mov \irqnr, #0
+ ands \irqstat, \irqstat, \tmp
+ clzne \irqnr, \irqstat
+ rsbne \irqnr, \irqnr, #31
+ .endm