Port agb_flash from pokeruby

src/agb_flash_le.c

@@ -0,0 +1,31 @@
+#include "gba/gba.h"
+#include "gba/flash_internal.h"
+
+const u16 leMaxTime[] =
+{
+      10, 65469, TIMER_ENABLE | TIMER_INTR_ENABLE | TIMER_256CLK,
+      10, 65469, TIMER_ENABLE | TIMER_INTR_ENABLE | TIMER_256CLK,
+    2000, 65469, TIMER_ENABLE | TIMER_INTR_ENABLE | TIMER_256CLK,
+    2000, 65469, TIMER_ENABLE | TIMER_INTR_ENABLE | TIMER_256CLK,
+};
+
+const struct FlashSetupInfo LE26FV10N1TS =
+{
+    ProgramFlashByte_MX,
+    ProgramFlashSector_MX,
+    EraseFlashChip_MX,
+    EraseFlashSector_MX,
+    WaitForFlashWrite_Common,
+    leMaxTime,
+    {
+        131072, // ROM size
+        {
+            4096, // sector size
+              12, // bit shift to multiply by sector size (4096 == 1 << 12)
+              32, // number of sectors
+               0  // appears to be unused
+        },
+        { 3, 1 }, // wait state setup data
+        { { 0x62, 0x13 } } // ID
+    }
+};