2 * include/asm-arm/arch-h720x/entry-macro.S
4 * Low-level IRQ helper macros for Hynix HMS720x based platforms
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
14 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
15 #if defined (CONFIG_CPU_H7201) || defined (CONFIG_CPU_H7202)
16 @ we could use the id register on H7202, but this is not
17 @ properly updated when we come back from asm_do_irq
18 @ without a previous return from interrupt
19 @ (see loops below in irq_svc, irq_usr)
20 @ We see unmasked pending ints only, as the masked pending ints
21 @ are not visible here
23 mov \base, #0xf0000000 @ base register
24 orr \base, \base, #0x24000 @ irqbase
25 ldr \irqstat, [\base, #0x04] @ get interrupt status
26 #if defined (CONFIG_CPU_H7201)
31 and \irqstat, \irqstat, \tmp @ mask out unused ints
37 addeq \irqnr, \irqnr, #16
38 moveq \irqstat, \irqstat, lsr #16
40 addeq \irqnr, \irqnr, #8
41 moveq \irqstat, \irqstat, lsr #8
43 addeq \irqnr, \irqnr, #4
44 moveq \irqstat, \irqstat, lsr #4
46 addeq \irqnr, \irqnr, #2
47 moveq \irqstat, \irqstat, lsr #2
49 addeq \irqnr, \irqnr, #1
50 moveq \irqstat, \irqstat, lsr #1
51 tst \irqstat, #1 @ bit 0 should be set
58 #error hynix processor selection missmatch