[PATCH 1/2] powerpc/86xx: Board support for GE Fanuc's PPC9A
Martyn Welch
martyn.welch at gefanuc.com
Sat Mar 14 02:52:26 EST 2009
Support for the PPC9A VME Single Board Computer from GE Fanuc (PowerPC
MPC8641D).
This is the basic board support for GE Fanuc's PPC9A, a 6U single board
computer, based on Freescale's MPC8641D.
Signed-off-by: Martyn Welch <martyn.welch at gefanuc.com>
---
arch/powerpc/boot/dts/gef_ppc9a.dts | 363 +++++++++++++++++++++++++++++++
arch/powerpc/platforms/86xx/Kconfig | 10 +
arch/powerpc/platforms/86xx/Makefile | 1
arch/powerpc/platforms/86xx/gef_ppc9a.c | 223 +++++++++++++++++++
drivers/watchdog/Kconfig | 2
5 files changed, 597 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/boot/dts/gef_ppc9a.dts b/arch/powerpc/boot/dts/gef_ppc9a.dts
new file mode 100644
index 0000000..3be1c43
--- /dev/null
+++ b/arch/powerpc/boot/dts/gef_ppc9a.dts
@@ -0,0 +1,363 @@
+/*
+ * GE Fanuc PPC9A Device Tree Source
+ *
+ * Copyright 2008 GE Fanuc 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.
+ *
+ * Based on: SBS CM6 Device Tree Source
+ * Copyright 2007 SBS Technologies GmbH & Co. KG
+ * And: mpc8641_hpcn.dts (MPC8641 HPCN Device Tree Source)
+ * Copyright 2006 Freescale Semiconductor Inc.
+ */
+
+/*
+ * Compiled with dtc -I dts -O dtb -o gef_ppc9a.dtb gef_ppc9a.dts
+ */
+
+/dts-v1/;
+
+/ {
+ model = "GEF_PPC9A";
+ compatible = "gef,ppc9a";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ aliases {
+ ethernet0 = &enet0;
+ ethernet1 = &enet1;
+ serial0 = &serial0;
+ serial1 = &serial1;
+ pci0 = &pci0;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ PowerPC,8641 at 0 {
+ device_type = "cpu";
+ reg = <0>;
+ d-cache-line-size = <32>; // 32 bytes
+ i-cache-line-size = <32>; // 32 bytes
+ d-cache-size = <32768>; // L1, 32K
+ i-cache-size = <32768>; // L1, 32K
+ timebase-frequency = <0>; // From uboot
+ bus-frequency = <0>; // From uboot
+ clock-frequency = <0>; // From uboot
+ };
+ PowerPC,8641 at 1 {
+ device_type = "cpu";
+ reg = <1>;
+ d-cache-line-size = <32>; // 32 bytes
+ i-cache-line-size = <32>; // 32 bytes
+ d-cache-size = <32768>; // L1, 32K
+ i-cache-size = <32768>; // L1, 32K
+ timebase-frequency = <0>; // From uboot
+ bus-frequency = <0>; // From uboot
+ clock-frequency = <0>; // From uboot
+ };
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x0 0x40000000>; // set by uboot
+ };
+
+ localbus at fef05000 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ compatible = "fsl,mpc8641-localbus", "simple-bus";
+ reg = <0xfef05000 0x1000>;
+ interrupts = <19 2>;
+ interrupt-parent = <&mpic>;
+
+ ranges = <0 0 0xff000000 0x01000000 // 16MB Boot flash
+ 1 0 0xe8000000 0x08000000 // Paged Flash 0
+ 2 0 0xe0000000 0x08000000 // Paged Flash 1
+ 3 0 0xfc100000 0x00020000 // NVRAM
+ 4 0 0xfc000000 0x00008000 // FPGA
+ 5 0 0xfc008000 0x00008000 // AFIX FPGA
+ 6 0 0xfd000000 0x00800000 // IO FPGA (8-bit)
+ 7 0 0xfd800000 0x00800000>; // IO FPGA (32-bit)
+
+ /* flash at 0,0 is a mirror of part of the memory in flash at 1,0
+ flash at 0,0 {
+ compatible = "cfi-flash";
+ reg = <0x0 0x0 0x1000000>;
+ bank-width = <4>;
+ device-width = <2>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ partition at 0 {
+ label = "firmware";
+ reg = <0x0 0x1000000>;
+ read-only;
+ };
+ };
+ */
+
+ flash at 1,0 {
+ compatible = "cfi-flash";
+ reg = <0x1 0x0 0x8000000>;
+ bank-width = <4>;
+ device-width = <2>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ partition at 0 {
+ label = "user";
+ reg = <0x0 0x7800000>;
+ };
+ partition at 7800000 {
+ label = "firmware";
+ reg = <0x7800000 0x800000>;
+ read-only;
+ };
+ };
+
+ fpga at 4,0 {
+ compatible = "gef,fpga-regs";
+ reg = <0x4 0x0 0x40>;
+ };
+
+ wdt at 4,2000 {
+ compatible = "gef,fpga-wdt";
+ reg = <0x4 0x2000 0x8>;
+ interrupts = <0x1a 0x4>;
+ interrupt-parent = <&gef_pic>;
+ };
+ /* Second watchdog available, driver currently supports one.
+ wdt at 4,2010 {
+ compatible = "gef,fpga-wdt";
+ reg = <0x4 0x2010 0x8>;
+ interrupts = <0x1b 0x4>;
+ interrupt-parent = <&gef_pic>;
+ };
+ */
+ gef_pic: pic at 4,4000 {
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ compatible = "gef,fpga-pic";
+ reg = <0x4 0x4000 0x20>;
+ interrupts = <0x8
+ 0x9>;
+ interrupt-parent = <&mpic>;
+
+ };
+ gef_gpio: gpio at 7,14000 {
+ #gpio-cells = <2>;
+ compatible = "gef,sbc610-gpio";
+ reg = <0x7 0x14000 0x24>;
+ gpio-controller;
+ };
+ };
+
+ soc at fef00000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #interrupt-cells = <2>;
+ device_type = "soc";
+ compatible = "simple-bus";
+ ranges = <0x0 0xfef00000 0x00100000>;
+ reg = <0xfef00000 0x100000>; // CCSRBAR 1M
+ bus-frequency = <33333333>;
+
+ i2c1: i2c at 3000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl-i2c";
+ reg = <0x3000 0x100>;
+ interrupts = <0x2b 0x2>;
+ interrupt-parent = <&mpic>;
+ dfsrr;
+
+ hwmon at 48 {
+ compatible = "national,lm92";
+ reg = <0x48>;
+ };
+
+ hwmon at 4c {
+ compatible = "adi,adt7461";
+ reg = <0x4c>;
+ };
+
+ rtc at 51 {
+ compatible = "epson,rx8581";
+ reg = <0x00000051>;
+ };
+
+ eti at 6b {
+ compatible = "dallas,ds1682";
+ reg = <0x6b>;
+ };
+ };
+
+ i2c2: i2c at 3100 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl-i2c";
+ reg = <0x3100 0x100>;
+ interrupts = <0x2b 0x2>;
+ interrupt-parent = <&mpic>;
+ dfsrr;
+ };
+
+ dma at 21300 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,mpc8641-dma", "fsl,eloplus-dma";
+ reg = <0x21300 0x4>;
+ ranges = <0x0 0x21100 0x200>;
+ cell-index = <0>;
+ dma-channel at 0 {
+ compatible = "fsl,mpc8641-dma-channel",
+ "fsl,eloplus-dma-channel";
+ reg = <0x0 0x80>;
+ cell-index = <0>;
+ interrupt-parent = <&mpic>;
+ interrupts = <20 2>;
+ };
+ dma-channel at 80 {
+ compatible = "fsl,mpc8641-dma-channel",
+ "fsl,eloplus-dma-channel";
+ reg = <0x80 0x80>;
+ cell-index = <1>;
+ interrupt-parent = <&mpic>;
+ interrupts = <21 2>;
+ };
+ dma-channel at 100 {
+ compatible = "fsl,mpc8641-dma-channel",
+ "fsl,eloplus-dma-channel";
+ reg = <0x100 0x80>;
+ cell-index = <2>;
+ interrupt-parent = <&mpic>;
+ interrupts = <22 2>;
+ };
+ dma-channel at 180 {
+ compatible = "fsl,mpc8641-dma-channel",
+ "fsl,eloplus-dma-channel";
+ reg = <0x180 0x80>;
+ cell-index = <3>;
+ interrupt-parent = <&mpic>;
+ interrupts = <23 2>;
+ };
+ };
+
+ mdio at 24520 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,gianfar-mdio";
+ reg = <0x24520 0x20>;
+
+ phy0: ethernet-phy at 0 {
+ interrupt-parent = <&gef_pic>;
+ interrupts = <0x9 0x4>;
+ reg = <1>;
+ };
+ phy2: ethernet-phy at 2 {
+ interrupt-parent = <&gef_pic>;
+ interrupts = <0x8 0x4>;
+ reg = <3>;
+ };
+ };
+
+ enet0: ethernet at 24000 {
+ device_type = "network";
+ model = "eTSEC";
+ compatible = "gianfar";
+ reg = <0x24000 0x1000>;
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ interrupts = <0x1d 0x2 0x1e 0x2 0x22 0x2>;
+ interrupt-parent = <&mpic>;
+ phy-handle = <&phy0>;
+ phy-connection-type = "gmii";
+ };
+
+ enet1: ethernet at 26000 {
+ device_type = "network";
+ model = "eTSEC";
+ compatible = "gianfar";
+ reg = <0x26000 0x1000>;
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ interrupts = <0x1f 0x2 0x20 0x2 0x21 0x2>;
+ interrupt-parent = <&mpic>;
+ phy-handle = <&phy2>;
+ phy-connection-type = "gmii";
+ };
+
+ serial0: serial at 4500 {
+ cell-index = <0>;
+ device_type = "serial";
+ compatible = "ns16550";
+ reg = <0x4500 0x100>;
+ clock-frequency = <0>;
+ interrupts = <0x2a 0x2>;
+ interrupt-parent = <&mpic>;
+ };
+
+ serial1: serial at 4600 {
+ cell-index = <1>;
+ device_type = "serial";
+ compatible = "ns16550";
+ reg = <0x4600 0x100>;
+ clock-frequency = <0>;
+ interrupts = <0x1c 0x2>;
+ interrupt-parent = <&mpic>;
+ };
+
+ mpic: pic at 40000 {
+ clock-frequency = <0>;
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <2>;
+ reg = <0x40000 0x40000>;
+ compatible = "chrp,open-pic";
+ device_type = "open-pic";
+ };
+
+ global-utilities at e0000 {
+ compatible = "fsl,mpc8641-guts";
+ reg = <0xe0000 0x1000>;
+ fsl,has-rstcr;
+ };
+ };
+
+ pci0: pcie at fef08000 {
+ compatible = "fsl,mpc8641-pcie";
+ device_type = "pci";
+ #interrupt-cells = <1>;
+ #size-cells = <2>;
+ #address-cells = <3>;
+ reg = <0xfef08000 0x1000>;
+ bus-range = <0x0 0xff>;
+ ranges = <0x02000000 0x0 0x80000000 0x80000000 0x0 0x40000000
+ 0x01000000 0x0 0x00000000 0xfe000000 0x0 0x00400000>;
+ clock-frequency = <33333333>;
+ interrupt-parent = <&mpic>;
+ interrupts = <0x18 0x2>;
+ interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
+ interrupt-map = <
+ 0x0000 0x0 0x0 0x1 &mpic 0x0 0x1
+ 0x0000 0x0 0x0 0x2 &mpic 0x1 0x1
+ 0x0000 0x0 0x0 0x3 &mpic 0x2 0x1
+ 0x0000 0x0 0x0 0x4 &mpic 0x3 0x1
+ >;
+
+ pcie at 0 {
+ reg = <0 0 0 0 0>;
+ #size-cells = <2>;
+ #address-cells = <3>;
+ device_type = "pci";
+ ranges = <0x02000000 0x0 0x80000000
+ 0x02000000 0x0 0x80000000
+ 0x0 0x40000000
+
+ 0x01000000 0x0 0x00000000
+ 0x01000000 0x0 0x00000000
+ 0x0 0x00400000>;
+ };
+ };
+};
diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index fa276c6..611d0d1 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -31,6 +31,14 @@ config MPC8610_HPCD
help
This option enables support for the MPC8610 HPCD board.
+config GEF_PPC9A
+ bool "GE Fanuc PPC9A"
+ select DEFAULT_UIMAGE
+ select GENERIC_GPIO
+ select ARCH_REQUIRE_GPIOLIB
+ help
+ This option enables support for GE Fanuc's PPC9A.
+
config GEF_SBC310
bool "GE Fanuc SBC310"
select DEFAULT_UIMAGE
@@ -56,7 +64,7 @@ config MPC8641
select FSL_PCI if PCI
select PPC_UDBG_16550
select MPIC
- default y if MPC8641_HPCN || SBC8641D || GEF_SBC610 || GEF_SBC310
+ default y if MPC8641_HPCN || SBC8641D || GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
config MPC8610
bool
diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile
index 7c080da..4b0d7b1 100644
--- a/arch/powerpc/platforms/86xx/Makefile
+++ b/arch/powerpc/platforms/86xx/Makefile
@@ -10,3 +10,4 @@ obj-$(CONFIG_MPC8610_HPCD) += mpc8610_hpcd.o
gef-gpio-$(CONFIG_GPIOLIB) += gef_gpio.o
obj-$(CONFIG_GEF_SBC610) += gef_sbc610.o gef_pic.o $(gef-gpio-y)
obj-$(CONFIG_GEF_SBC310) += gef_sbc310.o gef_pic.o $(gef-gpio-y)
+obj-$(CONFIG_GEF_PPC9A) += gef_ppc9a.o gef_pic.o $(gef-gpio-y)
diff --git a/arch/powerpc/platforms/86xx/gef_ppc9a.c b/arch/powerpc/platforms/86xx/gef_ppc9a.c
new file mode 100644
index 0000000..66f0ed2
--- /dev/null
+++ b/arch/powerpc/platforms/86xx/gef_ppc9a.c
@@ -0,0 +1,223 @@
+/*
+ * GE Fanuc PPC9A board support
+ *
+ * Author: Martyn Welch <martyn.welch at gefanuc.com>
+ *
+ * Copyright 2008 GE Fanuc 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.
+ *
+ * Based on: mpc86xx_hpcn.c (MPC86xx HPCN board specific routines)
+ * Copyright 2006 Freescale Semiconductor Inc.
+ *
+ * NEC fixup adapted from arch/mips/pci/fixup-lm2e.c
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/delay.h>
+#include <linux/seq_file.h>
+#include <linux/of_platform.h>
+
+#include <asm/system.h>
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <asm/mpc86xx.h>
+#include <asm/prom.h>
+#include <mm/mmu_decl.h>
+#include <asm/udbg.h>
+
+#include <asm/mpic.h>
+
+#include <sysdev/fsl_pci.h>
+#include <sysdev/fsl_soc.h>
+
+#include "mpc86xx.h"
+#include "gef_pic.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG (fmt...) do { printk(KERN_ERR "PPC9A: " fmt); } while (0)
+#else
+#define DBG (fmt...) do { } while (0)
+#endif
+
+void __iomem *ppc9a_regs;
+
+static void __init gef_ppc9a_init_irq(void)
+{
+ struct device_node *cascade_node = NULL;
+
+ mpc86xx_init_irq();
+
+ /*
+ * There is a simple interrupt handler in the main FPGA, this needs
+ * to be cascaded into the MPIC
+ */
+ cascade_node = of_find_compatible_node(NULL, NULL, "gef,fpga-pic");
+ if (!cascade_node) {
+ printk(KERN_WARNING "PPC9A: No FPGA PIC\n");
+ return;
+ }
+
+ gef_pic_init(cascade_node);
+ of_node_put(cascade_node);
+}
+
+static void __init gef_ppc9a_setup_arch(void)
+{
+ struct device_node *regs;
+#ifdef CONFIG_PCI
+ struct device_node *np;
+
+ for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") {
+ fsl_add_bridge(np, 1);
+ }
+#endif
+
+ printk(KERN_INFO "GE Fanuc Intelligent Platforms PPC9A 6U VME SBC\n");
+
+#ifdef CONFIG_SMP
+ mpc86xx_smp_init();
+#endif
+
+ /* Remap basic board registers */
+ regs = of_find_compatible_node(NULL, NULL, "gef,fpga-regs");
+ if (regs) {
+ ppc9a_regs = of_iomap(regs, 0);
+ if (ppc9a_regs == NULL)
+ printk(KERN_WARNING "Unable to map board registers\n");
+ of_node_put(regs);
+ }
+}
+
+/* Return the PCB revision */
+static unsigned int gef_ppc9a_get_pcb_rev(void)
+{
+ unsigned int reg;
+
+ reg = ioread32(ppc9a_regs);
+ return (reg >> 8) & 0xff;
+}
+
+/* Return the board (software) revision */
+static unsigned int gef_ppc9a_get_board_rev(void)
+{
+ unsigned int reg;
+
+ reg = ioread32(ppc9a_regs);
+ return (reg >> 16) & 0xff;
+}
+
+/* Return the FPGA revision */
+static unsigned int gef_ppc9a_get_fpga_rev(void)
+{
+ unsigned int reg;
+
+ reg = ioread32(ppc9a_regs);
+ return (reg >> 24) & 0xf;
+}
+
+static void gef_ppc9a_show_cpuinfo(struct seq_file *m)
+{
+ uint svid = mfspr(SPRN_SVR);
+
+ seq_printf(m, "Vendor\t\t: GE Fanuc Intelligent Platforms\n");
+
+ seq_printf(m, "Revision\t: %u%c\n", gef_ppc9a_get_pcb_rev(),
+ ('A' + gef_ppc9a_get_board_rev() - 1));
+ seq_printf(m, "FPGA Revision\t: %u\n", gef_ppc9a_get_fpga_rev());
+
+ seq_printf(m, "SVR\t\t: 0x%x\n", svid);
+}
+
+static void __init gef_ppc9a_nec_fixup(struct pci_dev *pdev)
+{
+ unsigned int val;
+
+ /* Do not do the fixup on other platforms! */
+ if (!machine_is(gef_ppc9a))
+ return;
+
+ printk(KERN_INFO "Running NEC uPD720101 Fixup\n");
+
+ /* Ensure ports 1, 2, 3, 4 & 5 are enabled */
+ pci_read_config_dword(pdev, 0xe0, &val);
+ pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x5);
+
+ /* 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,
+ gef_ppc9a_nec_fixup);
+
+/*
+ * Called very early, device-tree isn't unflattened
+ *
+ * This function is called to determine whether the BSP is compatible with the
+ * supplied device-tree, which is assumed to be the correct one for the actual
+ * board. It is expected thati, in the future, a kernel may support multiple
+ * boards.
+ */
+static int __init gef_ppc9a_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ if (of_flat_dt_is_compatible(root, "gef,ppc9a"))
+ return 1;
+
+ return 0;
+}
+
+static long __init mpc86xx_time_init(void)
+{
+ unsigned int temp;
+
+ /* Set the time base to zero */
+ mtspr(SPRN_TBWL, 0);
+ mtspr(SPRN_TBWU, 0);
+
+ temp = mfspr(SPRN_HID0);
+ temp |= HID0_TBEN;
+ mtspr(SPRN_HID0, temp);
+ asm volatile("isync");
+
+ return 0;
+}
+
+static __initdata struct of_device_id of_bus_ids[] = {
+ { .compatible = "simple-bus", },
+ {},
+};
+
+static int __init declare_of_platform_devices(void)
+{
+ printk(KERN_DEBUG "Probe platform devices\n");
+ of_platform_bus_probe(NULL, of_bus_ids, NULL);
+
+ return 0;
+}
+machine_device_initcall(gef_ppc9a, declare_of_platform_devices);
+
+define_machine(gef_ppc9a) {
+ .name = "GE Fanuc PPC9A",
+ .probe = gef_ppc9a_probe,
+ .setup_arch = gef_ppc9a_setup_arch,
+ .init_IRQ = gef_ppc9a_init_irq,
+ .show_cpuinfo = gef_ppc9a_show_cpuinfo,
+ .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
+};
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index c7352f7..ecf52e4 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -772,7 +772,7 @@ config TXX9_WDT
config GEF_WDT
tristate "GE Fanuc Watchdog Timer"
- depends on GEF_SBC610 || GEF_SBC310
+ depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
---help---
Watchdog timer found in a number of GE Fanuc single board computers.
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