[PATCH 7/8] powerpc/fsl-booke: Add initial T4240QDS board support
Kumar Gala
galak at kernel.crashing.org
Wed Mar 6 10:15:59 EST 2013
Some minor changes to the common corenet_ds.c code are needed to support
the T4240QDS:
* Add support for "fsl,qoriq-pcie-v3.0" controller
* Bump max # of IRQs to 512 (T4240 supports more interrupts than
previous SoCs).
Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
---
arch/powerpc/platforms/85xx/Kconfig | 17 ++++++
arch/powerpc/platforms/85xx/Makefile | 1 +
arch/powerpc/platforms/85xx/corenet_ds.c | 5 +-
arch/powerpc/platforms/85xx/t4240_qds.c | 98 ++++++++++++++++++++++++++++++
4 files changed, 120 insertions(+), 1 deletion(-)
create mode 100644 arch/powerpc/platforms/85xx/t4240_qds.c
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index a0dcd57..31dc066 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -305,6 +305,23 @@ config PPC_QEMU_E500
unset based on the emulated CPU (or actual host CPU in the case
of KVM).
+if PPC64
+
+config T4240_QDS
+ bool "Freescale T4240 QDS"
+ select DEFAULT_UIMAGE
+ select E500
+ select PPC_E500MC
+ select PHYS_64BIT
+ select SWIOTLB
+ select ARCH_REQUIRE_GPIOLIB
+ select GPIO_MPC8XXX
+ select HAS_RAPIDIO
+ select PPC_EPAPR_HV_PIC
+ help
+ This option enables support for the T4240 QDS board
+
+endif
endif # FSL_SOC_BOOKE
config TQM85xx
diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index 07d0dbb..712e233 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_P3041_DS) += p3041_ds.o corenet_ds.o
obj-$(CONFIG_P4080_DS) += p4080_ds.o corenet_ds.o
obj-$(CONFIG_P5020_DS) += p5020_ds.o corenet_ds.o
obj-$(CONFIG_P5040_DS) += p5040_ds.o corenet_ds.o
+obj-$(CONFIG_T4240_QDS) += t4240_qds.o corenet_ds.o
obj-$(CONFIG_STX_GP3) += stx_gp3.o
obj-$(CONFIG_TQM85xx) += tqm85xx.o
obj-$(CONFIG_SBC8548) += sbc8548.o
diff --git a/arch/powerpc/platforms/85xx/corenet_ds.c b/arch/powerpc/platforms/85xx/corenet_ds.c
index 6f355d8..c59c617 100644
--- a/arch/powerpc/platforms/85xx/corenet_ds.c
+++ b/arch/powerpc/platforms/85xx/corenet_ds.c
@@ -40,7 +40,7 @@ void __init corenet_ds_pic_init(void)
if (ppc_md.get_irq == mpic_get_coreint_irq)
flags |= MPIC_ENABLE_COREINT;
- mpic = mpic_alloc(NULL, 0, flags, 0, 256, " OpenPIC ");
+ mpic = mpic_alloc(NULL, 0, flags, 0, 512, " OpenPIC ");
BUG_ON(mpic == NULL);
mpic_init(mpic);
@@ -83,6 +83,9 @@ static const struct of_device_id of_device_ids[] = {
{
.compatible = "fsl,qoriq-pcie-v2.4",
},
+ {
+ .compatible = "fsl,qoriq-pcie-v3.0",
+ },
/* The following two are for the Freescale hypervisor */
{
.name = "hypervisor",
diff --git a/arch/powerpc/platforms/85xx/t4240_qds.c b/arch/powerpc/platforms/85xx/t4240_qds.c
new file mode 100644
index 0000000..5998e9f
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/t4240_qds.c
@@ -0,0 +1,98 @@
+/*
+ * T4240 QDS Setup
+ *
+ * Maintained by Kumar Gala (see MAINTAINERS for contact information)
+ *
+ * Copyright 2012 Freescale Semiconductor 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/kernel.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/phy.h>
+
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+
+#include <linux/of_platform.h>
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+#include <asm/ehv_pic.h>
+
+#include "corenet_ds.h"
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init t4240_qds_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+#ifdef CONFIG_SMP
+ extern struct smp_ops_t smp_85xx_ops;
+#endif
+
+ if (of_flat_dt_is_compatible(root, "fsl,T4240QDS"))
+ return 1;
+
+ /* Check if we're running under the Freescale hypervisor */
+ if (of_flat_dt_is_compatible(root, "fsl,T4240QDS-hv")) {
+ ppc_md.init_IRQ = ehv_pic_init;
+ ppc_md.get_irq = ehv_pic_get_irq;
+ ppc_md.restart = fsl_hv_restart;
+ ppc_md.power_off = fsl_hv_halt;
+ ppc_md.halt = fsl_hv_halt;
+#ifdef CONFIG_SMP
+ /*
+ * Disable the timebase sync operations because we can't write
+ * to the timebase registers under the hypervisor.
+ */
+ smp_85xx_ops.give_timebase = NULL;
+ smp_85xx_ops.take_timebase = NULL;
+#endif
+ return 1;
+ }
+
+ return 0;
+}
+
+define_machine(t4240_qds) {
+ .name = "T4240 QDS",
+ .probe = t4240_qds_probe,
+ .setup_arch = corenet_ds_setup_arch,
+ .init_IRQ = corenet_ds_pic_init,
+#ifdef CONFIG_PCI
+ .pcibios_fixup_bus = fsl_pcibios_fixup_bus,
+#endif
+/* coreint doesn't play nice with lazy EE, use legacy mpic for now */
+#ifdef CONFIG_PPC64
+ .get_irq = mpic_get_irq,
+#else
+ .get_irq = mpic_get_coreint_irq,
+#endif
+ .restart = fsl_rstcr_restart,
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = udbg_progress,
+#ifdef CONFIG_PPC64
+ .power_save = book3e_idle,
+#else
+ .power_save = e500_idle,
+#endif
+};
+
+machine_arch_initcall(t4240_qds, corenet_ds_publish_devices);
+
+#ifdef CONFIG_SWIOTLB
+machine_arch_initcall(t4240_qds, swiotlb_setup_bus_notifier);
+#endif
--
1.7.9.7
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