[PATCH 1/4] arch/powerpc/44x/fsp2: platform support for fsp2(476fpe) board

From: Ivan Mikhaylov
Date: Mon May 15 2017 - 09:08:47 EST


Add platform code support for FSP2 (476fpe) board.

Signed-off-by: Ivan Mikhaylov <ivan@xxxxxxxxxx>
---
arch/powerpc/platforms/44x/Kconfig | 12 +++++++
arch/powerpc/platforms/44x/Makefile | 1 +
arch/powerpc/platforms/44x/fsp2.c | 62 +++++++++++++++++++++++++++++++++++
3 files changed, 75 insertions(+), 0 deletions(-)
create mode 100644 arch/powerpc/platforms/44x/fsp2.c

diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index 9b0afe9..01cb109 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -199,6 +199,18 @@ config CURRITUCK
help
This option enables support for the IBM Currituck (476fpe) evaluation board

+config FSP2
+ bool "IBM FSP2 (476fpe) Support"
+ depends on PPC_47x
+ default n
+ select 476FPE
+ select IBM_EMAC_EMAC4 if IBM_EMAC
+ select IBM_EMAC_RGMII if IBM_EMAC
+ select COMMON_CLK
+ select DEFAULT_UIMAGE
+ help
+ This option enables support for the IBM FSP2 (476fpe) board
+
config AKEBONO
bool "IBM Akebono (476gtr) Support"
depends on PPC_47x
diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile
index 26d35b5..72b8241 100644
--- a/arch/powerpc/platforms/44x/Makefile
+++ b/arch/powerpc/platforms/44x/Makefile
@@ -12,3 +12,4 @@ obj-$(CONFIG_ISS4xx) += iss4xx.o
obj-$(CONFIG_CANYONLANDS)+= canyonlands.o
obj-$(CONFIG_CURRITUCK) += ppc476.o
obj-$(CONFIG_AKEBONO) += ppc476.o
+obj-$(CONFIG_FSP2) += fsp2.o
diff --git a/arch/powerpc/platforms/44x/fsp2.c b/arch/powerpc/platforms/44x/fsp2.c
new file mode 100644
index 0000000..92e9804
--- /dev/null
+++ b/arch/powerpc/platforms/44x/fsp2.c
@@ -0,0 +1,62 @@
+/*
+ * FSP-2 board specific routines
+ *
+ * Based on earlier code:
+ * Matt Porter <mporter@xxxxxxxxxxxxxxxxxxx>
+ * Copyright 2002-2005 MontaVista Software Inc.
+ *
+ * Eugene Surovegin <eugene.surovegin@xxxxxxxxxx> or <ebs@xxxxxxxxxxx>
+ * Copyright (c) 2003-2005 Zultys Technologies
+ *
+ * Rewritten and ported to the merged powerpc tree:
+ * Copyright 2007 David Gibson <dwg@xxxxxxxxxxx>, IBM Corporation.
+ *
+ * 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/init.h>
+#include <linux/of_platform.h>
+#include <linux/rtc.h>
+
+#include <asm/machdep.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/time.h>
+#include <asm/uic.h>
+#include <asm/ppc4xx.h>
+
+static __initdata struct of_device_id fsp2_of_bus[] = {
+ { .compatible = "ibm,plb4", },
+ { .compatible = "ibm,plb6", },
+ { .compatible = "ibm,opb", },
+ {},
+};
+
+static int __init fsp2_device_probe(void)
+{
+ of_platform_bus_probe(NULL, fsp2_of_bus, NULL);
+ return 0;
+}
+machine_device_initcall(fsp2, fsp2_device_probe);
+
+static int __init fsp2_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ if (!of_flat_dt_is_compatible(root, "ibm,fsp2"))
+ return 0;
+ return 1;
+}
+
+define_machine(fsp2) {
+ .name = "FSP-2",
+ .probe = fsp2_probe,
+ .progress = udbg_progress,
+ .init_IRQ = uic_init_tree,
+ .get_irq = uic_get_irq,
+ .restart = ppc4xx_reset_system,
+ .calibrate_decr = generic_calibrate_decr,
+};
--
1.7.1