Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-arm/arch-h720x/entry-macro.S b/include/asm-arm/arch-h720x/entry-macro.S
new file mode 100644
index 0000000..8f16564
--- /dev/null
+++ b/include/asm-arm/arch-h720x/entry-macro.S
@@ -0,0 +1,60 @@
+/*
+ * include/asm-arm/arch-h720x/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Hynix HMS720x based 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.
+ */
+
+ .macro disable_fiq
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+#if defined (CONFIG_CPU_H7201) || defined (CONFIG_CPU_H7202)
+ @ we could use the id register on H7202, but this is not
+ @ properly updated when we come back from asm_do_irq
+ @ without a previous return from interrupt
+ @ (see loops below in irq_svc, irq_usr)
+ @ We see unmasked pending ints only, as the masked pending ints
+ @ are not visible here
+
+ mov \base, #0xf0000000 @ base register
+ orr \base, \base, #0x24000 @ irqbase
+ ldr \irqstat, [\base, #0x04] @ get interrupt status
+#if defined (CONFIG_CPU_H7201)
+ ldr \tmp, =0x001fffff
+#else
+ mvn \tmp, #0xc0000000
+#endif
+ and \irqstat, \irqstat, \tmp @ mask out unused ints
+ mov \irqnr, #0
+
+ mov \tmp, #0xff00
+ orr \tmp, \tmp, #0xff
+ tst \irqstat, \tmp
+ addeq \irqnr, \irqnr, #16
+ moveq \irqstat, \irqstat, lsr #16
+ tst \irqstat, #255
+ addeq \irqnr, \irqnr, #8
+ moveq \irqstat, \irqstat, lsr #8
+ tst \irqstat, #15
+ addeq \irqnr, \irqnr, #4
+ moveq \irqstat, \irqstat, lsr #4
+ tst \irqstat, #3
+ addeq \irqnr, \irqnr, #2
+ moveq \irqstat, \irqstat, lsr #2
+ tst \irqstat, #1
+ addeq \irqnr, \irqnr, #1
+ moveq \irqstat, \irqstat, lsr #1
+ tst \irqstat, #1 @ bit 0 should be set
+ .endm
+
+ .macro irq_prio_table
+ .endm
+
+#else
+#error hynix processor selection missmatch
+#endif
+
