[ARM] 4744/1: pcm027: add support for phyCORE-PXA270 CPU module

This patch adds main support for the generic phyCORE-PXA270 CPU module
(aka PCM-027). Its as generic as possible to support any kind of baseboard.

Note: Neither the CPU module nor the pcm027.c implementation can work without
a baseboard support. Baseboard support can be added by the PCM-990 or any
custom variant.

V2:
 After comments by Eric Miao:
  - Currently unsupported devices moved into separate patch
  - direct call of baseboard initialisation

V3:
 After comments by Russell King
  - sort include files
  - setting RTC bit for power control removed
 - style problems fixed (discovered by checkpatch.pl)

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 84 insertions, 1 deletions

diff --git a/include/asm-arm/arch-pxa/irqs.h b/include/asm-arm/arch-pxa/irqs.h
index b76ee6d1f5b4..c562b972a4a6 100644
--- a/include/asm-arm/arch-pxa/irqs.h
+++ b/include/asm-arm/arch-pxa/irqs.h
@@ -180,7 +180,8 @@
 #define NR_IRQS                 (IRQ_LOCOMO_SPI_TEND + 1)
 #elif defined(CONFIG_ARCH_LUBBOCK) || \
       defined(CONFIG_MACH_LOGICPD_PXA270) || \
-      defined(CONFIG_MACH_MAINSTONE)
+      defined(CONFIG_MACH_MAINSTONE) || \
+      defined(CONFIG_MACH_PCM027)
 #define NR_IRQS                 (IRQ_BOARD_END)
 #else
 #define NR_IRQS                 (IRQ_BOARD_START)
@@ -227,6 +228,13 @@
 #define IRQ_LOCOMO_LT_BASE      (IRQ_BOARD_START + 2)
 #define IRQ_LOCOMO_SPI_BASE     (IRQ_BOARD_START + 3)
 
+/* phyCORE-PXA270 (PCM027) Interrupts */
+#define PCM027_IRQ(x)          (IRQ_BOARD_START + (x))
+#define PCM027_BTDET_IRQ       PCM027_IRQ(0)
+#define PCM027_FF_RI_IRQ       PCM027_IRQ(1)
+#define PCM027_MMCDET_IRQ      PCM027_IRQ(2)
+#define PCM027_PM_5V_IRQ       PCM027_IRQ(3)
+
 /* ITE8152 irqs */
 /* add IT8152 IRQs beyond BOARD_END */
 #ifdef CONFIG_PCI_HOST_ITE8152
diff --git a/include/asm-arm/arch-pxa/pcm027.h b/include/asm-arm/arch-pxa/pcm027.h
new file mode 100644
index 000000000000..7beae1472c3e
--- /dev/null
+++ b/include/asm-arm/arch-pxa/pcm027.h
@@ -0,0 +1,75 @@
+/*
+ * linux/include/asm-arm/arch-pxa/pcm027.h
+ *
+ * (c) 2003 Phytec Messtechnik GmbH <armlinux@phytec.de>
+ * (c) 2007 Juergen Beisert <j.beisert@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ * Definitions of CPU card resources only
+ */
+
+/* I2C RTC */
+#define PCM027_RTC_IRQ_GPIO     0
+#define PCM027_RTC_IRQ          IRQ_GPIO(PCM027_RTC_IRQ_GPIO)
+#define PCM027_RTC_IRQ_EDGE     IRQ_TYPE_EDGE_FALLING
+#define ADR_PCM027_RTC          0x51    /* I2C address */
+
+/* I2C EEPROM */
+#define ADR_PCM027_EEPROM       0x54    /* I2C address */
+
+/* Ethernet chip (SMSC91C111) */
+#define PCM027_ETH_IRQ_GPIO     52
+#define PCM027_ETH_IRQ          IRQ_GPIO(PCM027_ETH_IRQ_GPIO)
+#define PCM027_ETH_IRQ_EDGE     IRQ_TYPE_EDGE_RISING
+#define PCM027_ETH_PHYS         PXA_CS5_PHYS
+#define PCM027_ETH_SIZE         (1*1024*1024)
+
+/* CAN controller SJA1000 (unsupported yet) */
+#define PCM027_CAN_IRQ_GPIO     114
+#define PCM027_CAN_IRQ          IRQ_GPIO(PCM027_CAN_IRQ_GPIO)
+#define PCM027_CAN_IRQ_EDGE     IRQ_TYPE_EDGE_FALLING
+#define PCM027_CAN_PHYS         0x22000000
+#define PCM027_CAN_SIZE         0x100
+
+/* SPI GPIO expander (unsupported yet) */
+#define PCM027_EGPIO_IRQ_GPIO   27
+#define PCM027_EGPIO_IRQ        IRQ_GPIO(PCM027_EGPIO_IRQ_GPIO)
+#define PCM027_EGPIO_IRQ_EDGE   IRQ_TYPE_EDGE_FALLING
+#define PCM027_EGPIO_CS         24
+/*
+ * TODO: Switch this pin from dedicated usage to GPIO if
+ * more than the MAX7301 device is connected to this SPI bus
+ */
+#define PCM027_EGPIO_CS_MODE    GPIO24_SFRM_MD
+
+/* Flash memory */
+#define PCM027_FLASH_PHYS       0x00000000
+#define PCM027_FLASH_SIZE       0x02000000
+
+/* onboard LEDs connected to GPIO */
+#define PCM027_LED_CPU          90
+#define PCM027_LED_HEARD_BEAT   91
+
+/*
+ * This CPU module needs a baseboard to work. After basic initializing
+ * its own devices, it calls baseboard's init function.
+ * TODO: Add your own basebaord init function and call it from
+ * inside pcm027_init(). This example here is for the developmen board.
+ * Refer pcm990-baseboard.c
+ */
+extern void pcm990_baseboard_init(void);