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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2010-11-29 02:21:48 +0000
committerPaul Mundt <lethal@linux-sh.org>2010-11-29 13:05:26 +0900
commit4b82b68925d19ab32159ba94b30768f705812e0f (patch)
treeeeddb00ae17e3ef91a6a475530151b8daeb33dea /arch
parent11fee467a119afac02d336bf41dcd9c4db2b6106 (diff)
ARM: mach-shmobile: mackerel: document switch and pin modes.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-shmobile/board-mackerel.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index 21443fef28e6..889ce4f54ffd 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -57,6 +57,66 @@
* 0x4000_0000 LPDDR2-SDRAM (POP) 32bit
*/
+/*
+ * CPU mode
+ *
+ * SW4 | Boot Area| Master | Remarks
+ * 1 | 2 | 3 | 4 | 5 | 6 | 8 | | Processor|
+ * ----+-----+-----+-----+-----+-----+-----+----------+----------+--------------
+ * ON | ON | OFF | ON | ON | OFF | OFF | External | System | External ROM
+ * ON | ON | ON | ON | ON | OFF | OFF | External | System | ROM Debug
+ * ON | ON | X | ON | OFF | OFF | OFF | Built-in | System | ROM Debug
+ * X | OFF | X | X | X | X | OFF | Built-in | System | MaskROM
+ * OFF | X | X | X | X | X | OFF | Built-in | System | MaskROM
+ * X | X | X | OFF | X | X | OFF | Built-in | System | MaskROM
+ * OFF | ON | OFF | X | X | OFF | ON | External | System | Standalone
+ * ON | OFF | OFF | X | X | OFF | ON | External | Realtime | Standalone
+*/
+
+/*
+ * NOR Flash ROM
+ *
+ * SW1 | SW2 | SW7 | NOR Flash ROM
+ * bit1 | bit1 bit2 | bit1 | Memory allocation
+ * ------+------------+------+------------------
+ * OFF | ON OFF | ON | Area 0
+ * OFF | ON OFF | OFF | Area 4
+ */
+
+/*
+ * SMSC 9220
+ *
+ * SW1 SMSC 9220
+ * -----------------------
+ * ON access disable
+ * OFF access enable
+ */
+
+/*
+ * NAND Flash ROM
+ *
+ * SW1 | SW2 | SW7 | NAND Flash ROM
+ * bit1 | bit1 bit2 | bit2 | Memory allocation
+ * ------+------------+------+------------------
+ * OFF | ON OFF | ON | FCE 0
+ * OFF | ON OFF | OFF | FCE 1
+ */
+
+/*
+ * External interrupt pin settings
+ *
+ * IRQX | pin setting | device | level
+ * ------+--------------------+--------------------+-------
+ * IRQ0 | ICR1A.IRQ0SA=0010 | SDHI2 card detect | Low
+ * IRQ6 | ICR1A.IRQ6SA=0011 | Ether(LAN9220) | High
+ * IRQ7 | ICR1A.IRQ7SA=0010 | LCD Tuch Panel | Low
+ * IRQ8 | ICR2A.IRQ8SA=0010 | MMC/SD card detect | Low
+ * IRQ9 | ICR2A.IRQ9SA=0010 | KEY(TCA6408) | Low
+ * IRQ21 | ICR4A.IRQ21SA=0011 | Sensor(ADXL345) | High
+ * IRQ22 | ICR4A.IRQ22SA=0011 | Sensor(AK8975) | High
+
+*/
+
/* MTD */
static struct mtd_partition nor_flash_partitions[] = {
{