[PATCH v1 1/1] powerpc/86xx: Add support for Emerson/Artesyn MVME7100
Alessio Igor Bogani
alessio.bogani at elettra.eu
Tue Apr 12 00:21:22 AEST 2016
Add support for the Artesyn MVME7100 Single Board Computer.
The MVME7100 is a 6U form factor VME64 computer with:
- A two e600 cores Freescale MPC8641D CPU
- 2 GB of DDR2 onboard memory
- Four Gigabit Ethernets
- Five 16550 compatible UARTs
- One USB 2.0 port
- Two PCI/PCI eXpress Mezzanine Card (PMC/XMC) Slots
- A DS1375 Real Time Clock (RTC)
- 512 KB of Non-Volatile Memory (NVRAM)
- Two 64 KB EEPROMs
- 128 MB NOR and 4/8 GB NAND Flash
This patch is based on linux-4.6 and has been only boot tested.
Signed-off-by: Alessio Igor Bogani <alessio.bogani at elettra.eu>
---
This patch requires https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-April/141385.html to be built.
Limitations:
This patch covers only models 171 and 173
No plans to support CPLD timers.
Know issues:
All four PHYs work in polling mode
Configuration is missing for:
PCI IDSEL and PCI Interrupt definition
Support is missing for:
Cache and memory controllers (which are very similar to the 85xx ones
but right now I don't know if we can re-use their support)
Watchdog, USB, NVRAM, NOR, NAND, EEPROMs, VME, PMC/XMC and RTC
arch/powerpc/boot/Makefile | 4 +
arch/powerpc/boot/dts/fsl/mvme7100.dts | 210 +++++++++++++++++++++++++++
arch/powerpc/boot/mvme7100.c | 70 +++++++++
arch/powerpc/boot/ppcboot.h | 2 +-
arch/powerpc/boot/wrapper | 4 +
arch/powerpc/configs/mpc86xx_basic_defconfig | 1 +
arch/powerpc/platforms/86xx/Kconfig | 7 +-
arch/powerpc/platforms/86xx/Makefile | 1 +
arch/powerpc/platforms/86xx/mvme7100.c | 122 ++++++++++++++++
9 files changed, 419 insertions(+), 2 deletions(-)
create mode 100644 arch/powerpc/boot/dts/fsl/mvme7100.dts
create mode 100644 arch/powerpc/boot/mvme7100.c
create mode 100644 arch/powerpc/platforms/86xx/mvme7100.c
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 6116510..9e61ae2 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -113,6 +113,7 @@ src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr-wrapper.c
src-plat-$(CONFIG_PPC_PSERIES) += pseries-head.S
src-plat-$(CONFIG_PPC_POWERNV) += pseries-head.S
src-plat-$(CONFIG_PPC_IBM_CELL_BLADE) += pseries-head.S
+src-plat-$(CONFIG_MVME7100) += mvme7100.c
src-wlib := $(sort $(src-wlib-y))
src-plat := $(sort $(src-plat-y))
@@ -296,6 +297,9 @@ image-$(CONFIG_TQM8560) += cuImage.tqm8560
image-$(CONFIG_SBC8548) += cuImage.sbc8548
image-$(CONFIG_KSI8560) += cuImage.ksi8560
+# Board ports in arch/powerpc/platform/86xx/Kconfig
+image-$(CONFIG_MVME7100) += dtbImage.mvme7100
+
# Board ports in arch/powerpc/platform/embedded6xx/Kconfig
image-$(CONFIG_STORCENTER) += cuImage.storcenter
image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2
diff --git a/arch/powerpc/boot/dts/fsl/mvme7100.dts b/arch/powerpc/boot/dts/fsl/mvme7100.dts
new file mode 100644
index 0000000..7a5ff82
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/mvme7100.dts
@@ -0,0 +1,210 @@
+/*
+ * Device tree source for the Emerson/Artesyn MVME7100
+ *
+ * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A.
+ *
+ * Author: Alessio Igor Bogani <alessio.bogani at elettra.eu>
+ *
+ * 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.
+ *
+ */
+
+/include/ "mpc8641si-pre.dtsi"
+
+/ {
+ model = "MVME7100";
+ compatible = "artesyn,MVME7100";
+
+ aliases {
+ pci1 = &pci1;
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x00000000 0x80000000>;
+ };
+
+ soc: soc at f1000000 {
+ ranges = <0x00000000 0xf1000000 0x00100000>;
+
+ i2c at 3000 {
+ hwmon at 4c {
+ compatible = "dallas,max6649";
+ reg = <0x4c>;
+ };
+
+ rtc at 68 {
+ compatible = "dallas,ds1337";
+ reg = <0x68>;
+ };
+ };
+
+
+ enet0: ethernet at 24000 {
+ phy-handle = <&phy0>;
+ phy-connection-type = "rgmii-id";
+ };
+
+ mdio at 24520 {
+ phy0: ethernet-phy at 1 {
+ reg = <1>;
+ };
+ phy1: ethernet-phy at 2 {
+ reg = <2>;
+ };
+ phy2: ethernet-phy at 3 {
+ reg = <3>;
+ };
+ phy3: ethernet-phy at 4 {
+ reg = <4>;
+ };
+ };
+
+ enet1: ethernet at 25000 {
+ phy-handle = <&phy1>;
+ phy-connection-type = "rgmii-id";
+ };
+
+ mdio at 25520 {
+ status = "disabled";
+ };
+
+ enet2: ethernet at 26000 {
+ phy-handle = <&phy2>;
+ phy-connection-type = "rgmii-id";
+ };
+
+ mdio at 26520 {
+ status = "disabled";
+ };
+
+ enet3: ethernet at 27000 {
+ phy-handle = <&phy3>;
+ phy-connection-type = "rgmii-id";
+ };
+
+ mdio at 27520 {
+ status = "disabled";
+ };
+
+ serial1: serial at 4600 {
+ status = "disabled";
+ };
+ };
+
+ lbc: localbus at f1005000 {
+ reg = <0xf1005000 0x1000>;
+
+ ranges = <0 0 0xf8000000 0x08000000 // NOR Flash (128MB)
+ 2 0 0xf2030000 0x00010000 // NAND Flash (8GB)
+ 3 0 0xf2400000 0x00080000 // MRAM (512KB)
+ 4 0 0xf2000000 0x00010000 // BCSR
+ 5 0 0xf2010000 0x00010000>; // QUART
+
+ bcsr at 4,f2000000 {
+ compatible = "fsl,mvme7100-bcsr";
+ reg = <4 0xf2000000 0x10000>;
+ };
+
+ serial at 5,1000 {
+ cell-index = <2>;
+ device_type = "serial";
+ compatible = "ns16550";
+ reg = <5 0x1000 0x100>;
+ clock-frequency = <1843200>;
+ interrupts = <11 1 0 0>;
+ };
+
+ serial at 5,2000 {
+ cell-index = <3>;
+ device_type = "serial";
+ compatible = "ns16550";
+ reg = <5 0x2000 0x100>;
+ clock-frequency = <1843200>;
+ interrupts = <11 1 0 0>;
+ };
+
+ serial at 5,3000 {
+ cell-index = <4>;
+ device_type = "serial";
+ compatible = "ns16550";
+ reg = <5 0x3000 0x100>;
+ clock-frequency = <1843200>;
+ interrupts = <11 1 0 0>;
+ };
+
+
+ serial at 5,4000 {
+ cell-index = <5>;
+ device_type = "serial";
+ compatible = "ns16550";
+ reg = <5 0x4000 0x100>;
+ clock-frequency = <1843200>;
+ interrupts = <11 1 0 0>;
+ };
+ };
+
+ pci0: pcie at f1008000 {
+ reg = <0xf1008000 0x1000>;
+ ranges = <0x02000000 0x0 0x80000000 0x80000000 0x0 0x10000000
+ 0x42000000 0x0 0x90000000 0x90000000 0x0 0x40000000
+ 0x01000000 0x0 0x00000000 0xf0000000 0x0 0x00800000>;
+ pcie at 0 {
+ ranges = <0x02000000 0x0 0x80000000
+ 0x02000000 0x0 0x80000000
+ 0x0 0x10000000
+
+ 0x42000000 0x0 0x90000000
+ 0x42000000 0x0 0x90000000
+ 0x0 0x40000000
+
+ 0x01000000 0x0 0x00000000
+ 0x01000000 0x0 0x00000000
+ 0x0 0x00800000>;
+ };
+ };
+
+ pci1: pcie at f1009000 {
+ compatible = "fsl,mpc8641-pcie";
+ device_type = "pci";
+ #size-cells = <2>;
+ #address-cells = <3>;
+ reg = <0xf1009000 0x1000>;
+ bus-range = <0 0xff>;
+ ranges = <0x02000000 0x0 0xd0000000 0xd0000000 0x0 0x10000000
+ 0x01000000 0x0 0x00000000 0xf0800000 0x0 0x00800000>;
+ clock-frequency = <100000000>;
+ interrupts = <25 2 0 0>;
+ interrupt-map-mask = <0xf800 0 0 7>;
+ interrupt-map = <
+ /* IDSEL 0x0 */
+ 0x0000 0 0 1 &mpic 4 1
+ 0x0000 0 0 2 &mpic 5 1
+ 0x0000 0 0 3 &mpic 6 1
+ 0x0000 0 0 4 &mpic 7 1
+ >;
+ pcie at 0 {
+ reg = <0 0 0 0 0>;
+ #size-cells = <2>;
+ #address-cells = <3>;
+ device_type = "pci";
+ ranges = <0x02000000 0x0 0xd0000000
+ 0x02000000 0x0 0xd0000000
+ 0x0 0x10000000
+
+ 0x01000000 0x0 0x00000000
+ 0x01000000 0x0 0x00000000
+ 0x0 0x00800000>;
+ };
+ };
+
+ chosen {
+ linux,stdout-path = &serial0;
+ };
+
+};
+
+/include/ "mpc8641si-post.dtsi"
diff --git a/arch/powerpc/boot/mvme7100.c b/arch/powerpc/boot/mvme7100.c
new file mode 100644
index 0000000..55149e6
--- /dev/null
+++ b/arch/powerpc/boot/mvme7100.c
@@ -0,0 +1,70 @@
+/*
+ * Motload compatibility for the Emerson/Artesyn MVME7100
+ *
+ * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A.
+ *
+ * Author: Alessio Igor Bogani <alessio.bogani at elettra.eu>
+ *
+ * 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.
+ *
+ */
+
+#include "ops.h"
+#include "stdio.h"
+#include "cuboot.h"
+
+#define TARGET_MVME7100
+#define TARGET_HAS_ETH1
+#define TARGET_HAS_ETH2
+#define TARGET_HAS_ETH3
+#include "ppcboot.h"
+
+static bd_t bd;
+
+BSS_STACK(16384);
+
+static void mvme7100_fixups(void)
+{
+ void *devp;
+
+ unsigned long busfreq = bd.bi_busfreq * 1000000;
+ dt_fixup_cpu_clocks(bd.bi_intfreq * 1000000, busfreq / 4, busfreq);
+
+ devp = finddevice("/soc at f1000000");
+ if (devp)
+ setprop(devp, "bus-frequency", &busfreq, sizeof(busfreq));
+
+ devp = finddevice("/soc/serial at 4500");
+ if (devp)
+ setprop(devp, "clock-frequency", &busfreq, sizeof(busfreq));
+
+ dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
+
+ dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
+ dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
+ dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
+ dt_fixup_mac_address_by_alias("ethernet3", bd.bi_enet3addr);
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ CUBOOT_INIT();
+ fdt_init(_dtb_start);
+ serial_console_init();
+ platform_ops.fixups = mvme7100_fixups;
+
+}
+
+asm(" .globl _zimage_start\n\
+ _zimage_start:\n\
+ mfmsr 10\n\
+ rlwinm 10,10,0,~(1<<15) /* Clear MSR_EE */\n\
+ sync\n\
+ mtmsr 10\n\
+ isync\n\
+ b _zimage_start_lib\n\
+");
diff --git a/arch/powerpc/boot/ppcboot.h b/arch/powerpc/boot/ppcboot.h
index 6ae6f90..7b758be 100644
--- a/arch/powerpc/boot/ppcboot.h
+++ b/arch/powerpc/boot/ppcboot.h
@@ -43,7 +43,7 @@ typedef struct bd_info {
unsigned long bi_sramstart; /* start of SRAM memory */
unsigned long bi_sramsize; /* size of SRAM memory */
#if defined(TARGET_8xx) || defined(TARGET_CPM2) || defined(TARGET_85xx) ||\
- defined(TARGET_83xx)
+ defined(TARGET_83xx) || defined(TARGET_MVME7100)
unsigned long bi_immr_base; /* base of IMMR register */
#endif
#if defined(TARGET_PPC_MPC52xx)
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 6a19fce..5f461b0 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -302,6 +302,10 @@ mvme5100)
platformo="$object/fixed-head.o $object/mvme5100.o"
binary=y
;;
+mvme7100)
+ link_address='0x4000000'
+ binary=y
+ ;;
esac
vmz="$tmpdir/`basename \"$kernel\"`.$ext"
diff --git a/arch/powerpc/configs/mpc86xx_basic_defconfig b/arch/powerpc/configs/mpc86xx_basic_defconfig
index 33af5c5..3283f05 100644
--- a/arch/powerpc/configs/mpc86xx_basic_defconfig
+++ b/arch/powerpc/configs/mpc86xx_basic_defconfig
@@ -8,3 +8,4 @@ CONFIG_GEF_SBC610=y
CONFIG_MPC8610_HPCD=y
CONFIG_MPC8641_HPCN=y
CONFIG_SBC8641D=y
+CONFIG_MVME7100=y
diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index 1afd1e4..32874bf 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -61,6 +61,11 @@ config GEF_SBC610
help
This option enables support for the GE SBC610.
+config MVME7100
+ bool "Artesyn MVME7100"
+ help
+ This option enables support for the Emerson/Artesyn MVME7100 board.
+
endif
config MPC8641
@@ -69,7 +74,7 @@ config MPC8641
select FSL_PCI if PCI
select PPC_UDBG_16550
select MPIC
- default y if MPC8641_HPCN || SBC8641D || GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
+ default y if MPC8641_HPCN || SBC8641D || GEF_SBC610 || GEF_SBC310 || GEF_PPC9A || MVME7100
config MPC8610
bool
diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile
index 2d889ad..01958fe 100644
--- a/arch/powerpc/platforms/86xx/Makefile
+++ b/arch/powerpc/platforms/86xx/Makefile
@@ -10,3 +10,4 @@ obj-$(CONFIG_MPC8610_HPCD) += mpc8610_hpcd.o
obj-$(CONFIG_GEF_SBC610) += gef_sbc610.o
obj-$(CONFIG_GEF_SBC310) += gef_sbc310.o
obj-$(CONFIG_GEF_PPC9A) += gef_ppc9a.o
+obj-$(CONFIG_MVME7100) += mvme7100.o
diff --git a/arch/powerpc/platforms/86xx/mvme7100.c b/arch/powerpc/platforms/86xx/mvme7100.c
new file mode 100644
index 0000000..270eb43
--- /dev/null
+++ b/arch/powerpc/platforms/86xx/mvme7100.c
@@ -0,0 +1,122 @@
+/*
+ * Board setup routines for the Emerson/Artesyn MVME7100
+ *
+ * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A.
+ *
+ * Author: Alessio Igor Bogani <alessio.bogani at elettra.eu>
+ *
+ * Based on earlier code by:
+ *
+ * Ajit Prem <ajit.prem at emerson.com>
+ * Copyright 2008 Emerson
+ *
+ * USB host fixup is borrowed by:
+ *
+ * Martyn Welch <martyn.welch at ge.com>
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/pci.h>
+#include <linux/of_platform.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+
+#include "mpc86xx.h"
+
+#define MVME7100_INTERRUPT_REG_2_OFFSET 0x05
+#define MVME7100_DS1375_MASK 0x40
+#define MVME7100_MAX6649_MASK 0x20
+#define MVME7100_ABORT_MASK 0x10
+
+/*
+ * Setup the architecture
+ */
+static void __init mvme7100_setup_arch(void)
+{
+ u8 reg;
+ struct device_node *regs;
+ void __iomem *mvme7100_regs = NULL;
+
+ if (ppc_md.progress)
+ ppc_md.progress("mvme7100_setup_arch()", 0);
+
+#ifdef CONFIG_SMP
+ mpc86xx_smp_init();
+#endif
+
+ fsl_pci_assign_primary();
+
+ /* Remap BCSR registers */
+ regs = of_find_compatible_node(NULL, NULL, "bcsr");
+ if (regs) {
+ mvme7100_regs = of_iomap(regs, 0);
+ of_node_put(regs);
+ }
+
+ if (mvme7100_regs) {
+ /* Disable ds1375, max6649, and abort interrupts */
+ reg = readb(mvme7100_regs + MVME7100_INTERRUPT_REG_2_OFFSET);
+ reg |= MVME7100_DS1375_MASK | MVME7100_MAX6649_MASK
+ | MVME7100_ABORT_MASK;
+ writeb(reg, mvme7100_regs + MVME7100_INTERRUPT_REG_2_OFFSET);
+ } else
+ pr_warn("Unable to map board registers\n");
+
+ pr_info("MVME7100 board from Artesyn\n");
+}
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init mvme7100_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ if (!of_flat_dt_is_compatible(root, "artesyn,MVME7100"))
+ return 0;
+
+ _set_L2CR(_get_L2CR() | L2CR_L2E);
+ return 1;
+}
+
+static void mvme7100_usb_host_fixup(struct pci_dev *pdev)
+{
+ unsigned int val;
+
+ if (!machine_is(mvme7100))
+ return;
+
+ /* Ensure only ports 1 & 2 are enabled */
+ pci_read_config_dword(pdev, 0xe0, &val);
+ pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x2);
+
+ /* System clock is 48-MHz Oscillator and EHCI Enabled. */
+ pci_write_config_dword(pdev, 0xe4, 1 << 5);
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB,
+ mvme7100_usb_host_fixup);
+
+machine_arch_initcall(mvme7100, mpc86xx_common_publish_devices);
+
+define_machine(mvme7100) {
+ .name = "MVME7100",
+ .probe = mvme7100_probe,
+ .setup_arch = mvme7100_setup_arch,
+ .init_IRQ = mpc86xx_init_irq,
+ .get_irq = mpic_get_irq,
+ .restart = fsl_rstcr_restart,
+ .time_init = mpc86xx_time_init,
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = udbg_progress,
+#ifdef CONFIG_PCI
+ .pcibios_fixup_bus = fsl_pcibios_fixup_bus,
+#endif
+};
--
2.8.0
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