651c74c74b
The Marvell Kirkwood (88F6000) is a family of ARM SoCs based on a Shiva CPU core, and features a DDR2 controller, a x1 PCIe interface, a USB 2.0 interface, a SPI controller, a crypto accelerator, a TS interface, and IDMA/XOR engines, and depending on the model, also features one or two Gigabit Ethernet interfaces, two SATA II interfaces, one or two TWSI interfaces, one or two UARTs, a TDM/SLIC interface, a NAND controller, an I2S/SPDIF interface, and an SDIO interface. This patch adds supports for the Marvell DB-88F6281-BP Development Board and the RD-88F6192-NAS and the RD-88F6281 Reference Designs, enabling support for the PCIe interface, the USB interface, the ethernet interfaces, the SATA interfaces, the TWSI interfaces, the UARTs, and the NAND controller. Signed-off-by: Saeed Bishara <saeed@marvell.com> Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
40 lines
1,003 B
ArmAsm
40 lines
1,003 B
ArmAsm
/*
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* include/asm-arm/arch-kirkwood/entry-macro.S
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*
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* Low-level IRQ helper macros for Marvell Kirkwood platforms
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <asm/arch/kirkwood.h>
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.macro disable_fiq
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.endm
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.macro arch_ret_to_user, tmp1, tmp2
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.endm
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.macro get_irqnr_preamble, base, tmp
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ldr \base, =IRQ_VIRT_BASE
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.endm
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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@ check low interrupts
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ldr \irqstat, [\base, #IRQ_CAUSE_LOW_OFF]
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ldr \tmp, [\base, #IRQ_MASK_LOW_OFF]
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mov \irqnr, #31
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ands \irqstat, \irqstat, \tmp
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bne 1001f
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@ if no low interrupts set, check high interrupts
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ldr \irqstat, [\base, #IRQ_CAUSE_HIGH_OFF]
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ldr \tmp, [\base, #IRQ_MASK_HIGH_OFF]
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mov \irqnr, #63
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ands \irqstat, \irqstat, \tmp
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@ find first active interrupt source
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1001: clzne \irqstat, \irqstat
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subne \irqnr, \irqnr, \irqstat
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.endm
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