mpc85xx: Add board support for the eXMeritus HWW-1U-1A devices

The eXMeritus HWW-1U-1A unit is a DO-160-certified 13lb 1U chassis
with 3 independent TEMPEST zones.  Two independent P2020 computers may
be found inside each zone.  Complete hardware support is included.

High-level hardware overview:
  * DO-160 certified for passenger aircraft (noncritical)
  * TEMPEST ceritified for RED/BLACK separation
  * 3 zones per chassis, 2 computers per zone (total of 6)
  * Dual-core 1.066GHz P2020 per computer
  * One 2GB DDR2 SO-RDIMM module per computer (upgradable to 4GB)
  * Removable 80GB or 160GB Intel X18-M SSD per computer
  * Front-accessible dual-port E1000E per computer
  * Front-accessible serial console per computer
  * Front-accessible USB port per computer
  * Internal Gigabit crossover within each TEMPEST zone
  * Internal unidirectional fiber links across TEMPEST zones
  * Battery-backed DS1339 I2C RTC on each CPU.

Combined, each 13lb 1U chassis contains 12GB RAM, 12 cores @ 1.066GHz,
12 front-accessible Gigabit Ethernet ports and 960GB of solid-state
storage with a total power consumption of ~200W.

Additional notes:
  * SPD detection is only known to work with the DO-160-certified DIMMs

  * CPU reset is a little quirky due to hardware misfeature.  Proper
    support for the hardware reset mechanism has been left for a later
    patch series to address.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Cc: Andy Fleming <afleming@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 69 insertions, 0 deletions

diff --git a/board/exmeritus/hww1u1a/gpios.h b/board/exmeritus/hww1u1a/gpios.h
new file mode 100644
index 0000000000..ac56d42c61
--- /dev/null
+++ b/board/exmeritus/hww1u1a/gpios.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2010 eXMeritus, A Boeing Company
+ *
+ * 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
+ */
+
+#include <asm/mpc85xx_gpio.h>
+
+/* Common CPU A/B GPIOs (GPIO8-GPIO15 and IRQ4-IRQ6) */
+#define GPIO_CPU_ID		(1UL << (31 -  8))
+#define GPIO_BLUE_LED		(1UL << (31 -  9))
+#define GPIO_DIMM_RESET		(1UL << (31 - 10))
+#define GPIO_USB_RESET		(1UL << (31 - 11))
+#define GPIO_UNUSED_12		(1UL << (31 - 12))
+#define GPIO_GETH0_RESET	(1UL << (31 - 13))
+#define GPIO_RS422_RE		(1UL << (31 - 14))
+#define GPIO_RS422_DE		(1UL << (31 - 15))
+#define IRQ_I2CINT		(1UL << (31 - 20))
+#define IRQ_FANINT		(1UL << (31 - 21))
+#define IRQ_DIMM_EVENT		(1UL << (31 - 22))
+
+#define GPIO_RESETS (GPIO_DIMM_RESET|GPIO_USB_RESET|GPIO_GETH0_RESET)
+
+/* CPU A GPIOS (GPIO0-GPIO7 and IRQ0-IRQ3) */
+#define GPIO_CPUA_UNUSED_0	(1UL << (31 -  0))
+#define GPIO_CPUA_CPU_READY	(1UL << (31 -  1))
+#define GPIO_CPUA_DEBUG_LED2	(1UL << (31 -  2))
+#define GPIO_CPUA_DEBUG_LED1	(1UL << (31 -  3))
+#define GPIO_CPUA_TDIS2B	(1UL << (31 -  4)) /* MAC 2 TX B */
+#define GPIO_CPUA_TDIS2A	(1UL << (31 -  5)) /* MAC 2 TX A */
+#define GPIO_CPUA_TDIS1B	(1UL << (31 -  6)) /* MAC 1 TX B */
+#define GPIO_CPUA_TDIS1A	(1UL << (31 -  7)) /* MAC 1 TX A */
+#define IRQ_CPUA_UNUSED_0	(1UL << (31 - 16))
+#define IRQ_CPUA_UNUSED_1	(1UL << (31 - 17))
+#define IRQ_CPUA_UNUSED_2	(1UL << (31 - 18))
+#define IRQ_CPUA_UNUSED_3	(1UL << (31 - 19))
+
+/* CPU B GPIOS (GPIO0-GPIO7 and IRQ0-IRQ3) */
+#define GPIO_CPUB_RMUX_SEL1B	(1UL << (31 -  0))
+#define GPIO_CPUB_RMUX_SEL0B	(1UL << (31 -  1))
+#define GPIO_CPUB_RMUX_SEL1A	(1UL << (31 -  2))
+#define GPIO_CPUB_RMUX_SEL0A	(1UL << (31 -  3))
+#define GPIO_CPUB_UNUSED_4	(1UL << (31 -  4))
+#define GPIO_CPUB_CPU_READY	(1UL << (31 -  5))
+#define GPIO_CPUB_DEBUG_LED2	(1UL << (31 -  6))
+#define GPIO_CPUB_DEBUG_LED1	(1UL << (31 -  7))
+#define IRQ_CPUB_SD_1A		(1UL << (31 - 16))
+#define IRQ_CPUB_SD_2B		(1UL << (31 - 17))
+#define IRQ_CPUB_SD_2A		(1UL << (31 - 18))
+#define IRQ_CPUB_SD_1B		(1UL << (31 - 19))
+
+/* If it isn't CPU A then it's CPU B */
+static inline unsigned int hww1u1a_is_cpu_a(void)
+{
+	return !mpc85xx_gpio_get(GPIO_CPU_ID);
+}