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>
diff --git a/board/exmeritus/hww1u1a/hww1u1a.c b/board/exmeritus/hww1u1a/hww1u1a.c
new file mode 100644
index 0000000..52c22fa
--- /dev/null
+++ b/board/exmeritus/hww1u1a/hww1u1a.c
@@ -0,0 +1,277 @@
+/*
+ * Copyright 2009-2011 eXMeritus, A Boeing Company
+ * Copyright 2007-2009 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 <common.h>
+#include <command.h>
+#include <pci.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/cache.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_pci.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/io.h>
+#include <miiphy.h>
+#include <libfdt.h>
+#include <linux/ctype.h>
+#include <fdt_support.h>
+#include <fsl_mdio.h>
+#include <tsec.h>
+#include <asm/fsl_law.h>
+#include <netdev.h>
+#include <malloc.h>
+#include <i2c.h>
+#include <pca953x.h>
+
+#include "gpios.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+ unsigned int gpio_high = 0;
+ unsigned int gpio_low = 0;
+ unsigned int gpio_in = 0;
+ unsigned int i;
+
+ puts("Board: HWW-1U-1A ");
+
+ /*
+ * First just figure out which CPU we're on, then use that to
+ * configure the lists of other GPIOs to be programmed.
+ */
+ mpc85xx_gpio_set_in(GPIO_CPU_ID);
+ if (hww1u1a_is_cpu_a()) {
+ puts("CPU A\n");
+
+ /* We want to turn on some LEDs */
+ gpio_high |= GPIO_CPUA_CPU_READY;
+ gpio_low |= GPIO_CPUA_DEBUG_LED1;
+ gpio_low |= GPIO_CPUA_DEBUG_LED2;
+
+ /* Disable the unused transmitters */
+ gpio_low |= GPIO_CPUA_TDIS1A;
+ gpio_high |= GPIO_CPUA_TDIS1B;
+ gpio_low |= GPIO_CPUA_TDIS2A;
+ gpio_high |= GPIO_CPUA_TDIS2B;
+ } else {
+ puts("CPU B\n");
+
+ /* We want to turn on some LEDs */
+ gpio_high |= GPIO_CPUB_CPU_READY;
+ gpio_low |= GPIO_CPUB_DEBUG_LED1;
+ gpio_low |= GPIO_CPUB_DEBUG_LED2;
+
+ /* Enable the appropriate receivers */
+ gpio_high |= GPIO_CPUB_RMUX_SEL0A;
+ gpio_high |= GPIO_CPUB_RMUX_SEL0B;
+ gpio_low |= GPIO_CPUB_RMUX_SEL1A;
+ gpio_low |= GPIO_CPUB_RMUX_SEL1B;
+ }
+
+ /* These GPIOs are common */
+ gpio_in |= IRQ_I2CINT | IRQ_FANINT | IRQ_DIMM_EVENT;
+ gpio_low |= GPIO_RS422_RE;
+ gpio_high |= GPIO_RS422_DE;
+
+ /* Ok, now go ahead and program all of those in one go */
+ mpc85xx_gpio_set(gpio_high|gpio_low|gpio_in,
+ gpio_high|gpio_low,
+ gpio_high);
+
+ /*
+ * If things have been taken out of reset early (for example, by one
+ * of the BDI3000 debuggers), then we need to put them back in reset
+ * and delay a while before we continue.
+ */
+ if (mpc85xx_gpio_get(GPIO_RESETS)) {
+ ccsr_ddr_t *ddr = (ccsr_ddr_t *)CONFIG_SYS_MPC85xx_DDR_ADDR;
+
+ puts("Debugger detected... extra device reset enabled!\n");
+
+ /* Put stuff into reset and disable the DDR controller */
+ mpc85xx_gpio_set_low(GPIO_RESETS);
+ out_be32(&ddr->sdram_cfg, 0x00000000);
+
+ puts(" Waiting 1 sec for reset...");
+ for (i = 0; i < 10; i++) {
+ udelay(100000);
+ puts(".");
+ }
+ puts("\n");
+ }
+
+ /* Now bring everything back out of reset again */
+ mpc85xx_gpio_set_high(GPIO_RESETS);
+ return 0;
+}
+
+/*
+ * This little shell function just returns whether or not it's CPU A.
+ * It can be used to select the right device-tree when booting, etc.
+ */
+int do_hww1u1a_test_cpu_a(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
+{
+ if (argc > 1)
+ cmd_usage(cmdtp);
+
+ if (hww1u1a_is_cpu_a())
+ return 0;
+ else
+ return 1;
+}
+U_BOOT_CMD(
+ test_cpu_a, 1, 0, do_hww1u1a_test_cpu_a,
+ "Test if this is CPU A (versus B) on the eXMeritus HWW-1U-1A board",
+ ""
+);
+
+/* Create a prompt-like string: "uboot@HOSTNAME% " */
+#define PROMPT_PREFIX "uboot@exm"
+#define PROMPT_SUFFIX "% "
+
+/* This function returns a PS1 prompt based on the serial number */
+static char *hww1u1a_prompt;
+const char *hww1u1a_get_ps1(void)
+{
+ unsigned long len, i, j;
+ const char *serialnr;
+
+ /* If our prompt was already set, just use that */
+ if (hww1u1a_prompt)
+ return hww1u1a_prompt;
+
+ /* Use our serial number if present, otherwise a default */
+ serialnr = getenv("serial#");
+ if (!serialnr || !serialnr[0])
+ serialnr = "999999-X";
+
+ /*
+ * We will turn the serial number into a hostname by:
+ * (A) Delete all non-alphanumerics.
+ * (B) Lowercase all letters.
+ * (C) Prefix "exm".
+ * (D) Suffix "a" for CPU A and "b" for CPU B.
+ */
+ for (i = 0, len = 0; serialnr[i]; i++) {
+ if (isalnum(serialnr[i]))
+ len++;
+ }
+
+ len += sizeof(PROMPT_PREFIX PROMPT_SUFFIX) + 1; /* Includes NUL */
+ hww1u1a_prompt = malloc(len);
+ if (!hww1u1a_prompt)
+ return PROMPT_PREFIX "UNKNOWN(ENOMEM)" PROMPT_SUFFIX;
+
+ /* Now actually fill it in */
+ i = 0;
+
+ /* Handle the prefix */
+ for (j = 0; j < sizeof(PROMPT_PREFIX) - 1; j++)
+ hww1u1a_prompt[i++] = PROMPT_PREFIX[j];
+
+ /* Now the serial# part of the hostname */
+ for (j = 0; serialnr[j]; j++)
+ if (isalnum(serialnr[j]))
+ hww1u1a_prompt[i++] = tolower(serialnr[j]);
+
+ /* Now the CPU id ("a" or "b") */
+ hww1u1a_prompt[i++] = hww1u1a_is_cpu_a() ? 'a' : 'b';
+
+ /* Finally the suffix */
+ for (j = 0; j < sizeof(PROMPT_SUFFIX); j++)
+ hww1u1a_prompt[i++] = PROMPT_SUFFIX[j];
+
+ /* This should all have added up, but just in case */
+ hww1u1a_prompt[len - 1] = '\0';
+
+ /* Now we're done */
+ return hww1u1a_prompt;
+}
+
+void pci_init_board(void)
+{
+ fsl_pcie_init_board(0);
+}
+
+int board_early_init_r(void)
+{
+ const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
+ const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);
+
+ /*
+ * Remap bootflash region to caching-inhibited
+ * so that flash can be erased properly.
+ */
+
+ /* Flush d-cache and invalidate i-cache of any FLASH data */
+ flush_dcache();
+ invalidate_icache();
+
+ /* invalidate existing TLB entry for FLASH */
+ disable_tlb(flash_esel);
+
+ set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, flash_esel, BOOKE_PAGESZ_256M, 1);
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ struct tsec_info_struct tsec_info[4];
+ struct fsl_pq_mdio_info mdio_info;
+
+ SET_STD_TSEC_INFO(tsec_info[0], 1);
+ SET_STD_TSEC_INFO(tsec_info[1], 2);
+ SET_STD_TSEC_INFO(tsec_info[2], 3);
+
+ if (hww1u1a_is_cpu_a())
+ tsec_info[2].phyaddr = TSEC3_PHY_ADDR_CPUA;
+ else
+ tsec_info[2].phyaddr = TSEC3_PHY_ADDR_CPUB;
+
+ mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
+ mdio_info.name = DEFAULT_MII_NAME;
+ fsl_pq_mdio_init(bis, &mdio_info);
+
+ tsec_eth_init(bis, tsec_info, 3);
+ return pci_eth_init(bis);
+}
+
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ phys_addr_t base;
+ phys_size_t size;
+
+ ft_cpu_setup(blob, bd);
+
+ base = getenv_bootm_low();
+ size = getenv_bootm_size();
+
+ fdt_fixup_memory(blob, (u64)base, (u64)size);
+
+ FT_FSL_PCI_SETUP;
+}