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https://github.com/brain-hackers/u-boot-brain
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f8bbb4dad0
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>
70 lines
2.7 KiB
C
70 lines
2.7 KiB
C
/*
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* Copyright 2010 eXMeritus, A Boeing Company
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <asm/mpc85xx_gpio.h>
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/* Common CPU A/B GPIOs (GPIO8-GPIO15 and IRQ4-IRQ6) */
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#define GPIO_CPU_ID (1UL << (31 - 8))
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#define GPIO_BLUE_LED (1UL << (31 - 9))
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#define GPIO_DIMM_RESET (1UL << (31 - 10))
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#define GPIO_USB_RESET (1UL << (31 - 11))
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#define GPIO_UNUSED_12 (1UL << (31 - 12))
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#define GPIO_GETH0_RESET (1UL << (31 - 13))
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#define GPIO_RS422_RE (1UL << (31 - 14))
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#define GPIO_RS422_DE (1UL << (31 - 15))
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#define IRQ_I2CINT (1UL << (31 - 20))
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#define IRQ_FANINT (1UL << (31 - 21))
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#define IRQ_DIMM_EVENT (1UL << (31 - 22))
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#define GPIO_RESETS (GPIO_DIMM_RESET|GPIO_USB_RESET|GPIO_GETH0_RESET)
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/* CPU A GPIOS (GPIO0-GPIO7 and IRQ0-IRQ3) */
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#define GPIO_CPUA_UNUSED_0 (1UL << (31 - 0))
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#define GPIO_CPUA_CPU_READY (1UL << (31 - 1))
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#define GPIO_CPUA_DEBUG_LED2 (1UL << (31 - 2))
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#define GPIO_CPUA_DEBUG_LED1 (1UL << (31 - 3))
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#define GPIO_CPUA_TDIS2B (1UL << (31 - 4)) /* MAC 2 TX B */
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#define GPIO_CPUA_TDIS2A (1UL << (31 - 5)) /* MAC 2 TX A */
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#define GPIO_CPUA_TDIS1B (1UL << (31 - 6)) /* MAC 1 TX B */
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#define GPIO_CPUA_TDIS1A (1UL << (31 - 7)) /* MAC 1 TX A */
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#define IRQ_CPUA_UNUSED_0 (1UL << (31 - 16))
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#define IRQ_CPUA_UNUSED_1 (1UL << (31 - 17))
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#define IRQ_CPUA_UNUSED_2 (1UL << (31 - 18))
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#define IRQ_CPUA_UNUSED_3 (1UL << (31 - 19))
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/* CPU B GPIOS (GPIO0-GPIO7 and IRQ0-IRQ3) */
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#define GPIO_CPUB_RMUX_SEL1B (1UL << (31 - 0))
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#define GPIO_CPUB_RMUX_SEL0B (1UL << (31 - 1))
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#define GPIO_CPUB_RMUX_SEL1A (1UL << (31 - 2))
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#define GPIO_CPUB_RMUX_SEL0A (1UL << (31 - 3))
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#define GPIO_CPUB_UNUSED_4 (1UL << (31 - 4))
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#define GPIO_CPUB_CPU_READY (1UL << (31 - 5))
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#define GPIO_CPUB_DEBUG_LED2 (1UL << (31 - 6))
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#define GPIO_CPUB_DEBUG_LED1 (1UL << (31 - 7))
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#define IRQ_CPUB_SD_1A (1UL << (31 - 16))
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#define IRQ_CPUB_SD_2B (1UL << (31 - 17))
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#define IRQ_CPUB_SD_2A (1UL << (31 - 18))
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#define IRQ_CPUB_SD_1B (1UL << (31 - 19))
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/* If it isn't CPU A then it's CPU B */
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static inline unsigned int hww1u1a_is_cpu_a(void)
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{
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return !mpc85xx_gpio_get(GPIO_CPU_ID);
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}
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