18c2ecf20Sopenharmony_ci/* 28c2ecf20Sopenharmony_ci * arch/arm/mach-ebsa110/include/mach/entry-macro.S 38c2ecf20Sopenharmony_ci * 48c2ecf20Sopenharmony_ci * Low-level IRQ helper macros for ebsa110 platform. 58c2ecf20Sopenharmony_ci * 68c2ecf20Sopenharmony_ci * This file is licensed under the terms of the GNU General Public 78c2ecf20Sopenharmony_ci * License version 2. This program is licensed "as is" without any 88c2ecf20Sopenharmony_ci * warranty of any kind, whether express or implied. 98c2ecf20Sopenharmony_ci */ 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ci#define IRQ_STAT 0xff000000 /* read */ 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci .macro get_irqnr_preamble, base, tmp 168c2ecf20Sopenharmony_ci mov \base, #IRQ_STAT 178c2ecf20Sopenharmony_ci .endm 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ci .macro get_irqnr_and_base, irqnr, stat, base, tmp 208c2ecf20Sopenharmony_ci ldrb \stat, [\base] @ get interrupts 218c2ecf20Sopenharmony_ci mov \irqnr, #0 228c2ecf20Sopenharmony_ci tst \stat, #15 238c2ecf20Sopenharmony_ci addeq \irqnr, \irqnr, #4 248c2ecf20Sopenharmony_ci moveq \stat, \stat, lsr #4 258c2ecf20Sopenharmony_ci tst \stat, #3 268c2ecf20Sopenharmony_ci addeq \irqnr, \irqnr, #2 278c2ecf20Sopenharmony_ci moveq \stat, \stat, lsr #2 288c2ecf20Sopenharmony_ci tst \stat, #1 298c2ecf20Sopenharmony_ci addeq \irqnr, \irqnr, #1 308c2ecf20Sopenharmony_ci moveq \stat, \stat, lsr #1 318c2ecf20Sopenharmony_ci tst \stat, #1 @ bit 0 should be set 328c2ecf20Sopenharmony_ci .endm 338c2ecf20Sopenharmony_ci 34