[PATCH 3/7] Basic Freescale MPC512x support
John Rigby
jrigby at freescale.com
Wed Jan 9 03:01:29 EST 2008
512x is very similar to 83xx and most
of this is patterned after code from 83xx
New platform:
changed:
arch/powerpc/Kconfig
arch/powerpc/platforms/Kconfig
arch/powerpc/platforms/Kconfig.cputype
arch/powerpc/platforms/Makefile
new:
arch/powerpc/platforms/512x/*
Signed-off-by: John Rigby <jrigby at freescale.com>
---
arch/powerpc/Kconfig | 2 +-
arch/powerpc/platforms/512x/Kconfig | 20 ++++++
arch/powerpc/platforms/512x/Makefile | 4 +
arch/powerpc/platforms/512x/mpc5121_ads.c | 90 +++++++++++++++++++++++++++++
arch/powerpc/platforms/Kconfig | 8 +++
arch/powerpc/platforms/Kconfig.cputype | 6 +-
arch/powerpc/platforms/Makefile | 1 +
7 files changed, 127 insertions(+), 4 deletions(-)
create mode 100644 arch/powerpc/platforms/512x/Kconfig
create mode 100644 arch/powerpc/platforms/512x/Makefile
create mode 100644 arch/powerpc/platforms/512x/mpc5121_ads.c
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 66a3d8c..81c3f05 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -470,7 +470,7 @@ config PCI
bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
|| PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
|| PPC_PS3
- default y if !40x && !CPM2 && !8xx && !PPC_83xx \
+ default y if !40x && !CPM2 && !8xx && !PPC_512x && !PPC_83xx \
&& !PPC_85xx && !PPC_86xx
default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
default PCI_QSPAN if !4xx && !CPM2 && 8xx
diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig
new file mode 100644
index 0000000..399d279
--- /dev/null
+++ b/arch/powerpc/platforms/512x/Kconfig
@@ -0,0 +1,20 @@
+menu "Platform support"
+ depends on PPC_512x
+
+choice
+ prompt "Machine Type"
+ default MPC5121_ADS
+
+config MPC5121_ADS
+ bool "Freescale MPC5121E ADS"
+ select DEFAULT_UIMAGE
+ help
+ This option enables support for the MPC5121E ADS board.
+
+endchoice
+
+config MPC5121
+ bool
+ default y if MPC5121_ADS
+
+endmenu
diff --git a/arch/powerpc/platforms/512x/Makefile b/arch/powerpc/platforms/512x/Makefile
new file mode 100644
index 0000000..232c89f
--- /dev/null
+++ b/arch/powerpc/platforms/512x/Makefile
@@ -0,0 +1,4 @@
+#
+# Makefile for the Freescale PowerPC 512x linux kernel.
+#
+obj-$(CONFIG_MPC5121_ADS) += mpc5121_ads.o
diff --git a/arch/powerpc/platforms/512x/mpc5121_ads.c b/arch/powerpc/platforms/512x/mpc5121_ads.c
new file mode 100644
index 0000000..a860bf0
--- /dev/null
+++ b/arch/powerpc/platforms/512x/mpc5121_ads.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: John Rigby, <jrigby at freescale.com>, Thur Mar 29 2007
+ *
+ * Description:
+ * MPC5121 ADS board setup
+ *
+ * This 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/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/kdev_t.h>
+#include <linux/major.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/time.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+
+#include <asm/system.h>
+#include <asm/atomic.h>
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/prom.h>
+#include <asm/time.h>
+#include <asm/of_platform.h>
+
+static void __init mpc5121_ads_setup_arch(void)
+{
+ if (ppc_md.progress)
+ ppc_md.progress("mpc5121_ads_setup_arch()", 0);
+
+ printk(KERN_INFO "MPC5121 ADS board from Freescale Semiconductor\n");
+}
+
+static void __init mpc5121_ads_declare_of_platform_devices(void)
+{
+ /* Find every child of the SOC node and add it to of_platform */
+ if (of_platform_bus_probe(NULL, NULL, NULL))
+ printk(KERN_ERR __FILE__ ": "
+ "Error while probing of_platform bus\n");
+}
+
+static void __init mpc5121_ads_init_IRQ(void)
+{
+ struct device_node *np;
+
+ np = of_find_node_by_type(NULL, "ipic");
+ if (!np)
+ return;
+
+ ipic_init(np, 0);
+
+ /*
+ * Initialize the default interrupt mapping priorities,
+ * in case the boot rom changed something on us.
+ */
+ ipic_set_default_priority();
+}
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc5121_ads_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ return of_flat_dt_is_compatible(root, "MPC5121ADS");
+}
+
+define_machine(mpc5121_ads) {
+ .name = "MPC5121 ADS",
+ .probe = mpc5121_ads_probe,
+ .setup_arch = mpc5121_ads_setup_arch,
+ .init = mpc5121_ads_declare_of_platform_devices,
+ .init_IRQ = mpc5121_ads_init_IRQ,
+ .get_irq = ipic_get_irq,
+ .calibrate_decr = generic_calibrate_decr,
+};
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index ad9b1c0..1daf47f 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -25,6 +25,13 @@ config PPC_83xx
select IPIC
select WANT_DEVICE_TREE
+config PPC_512x
+ bool "Freescale 512x"
+ depends on 6xx
+ select FSL_SOC
+ select IPIC
+ select WANT_DEVICE_TREE
+
config PPC_86xx
bool "Freescale 86xx"
depends on 6xx
@@ -41,6 +48,7 @@ config CLASSIC32
source "arch/powerpc/platforms/pseries/Kconfig"
source "arch/powerpc/platforms/iseries/Kconfig"
source "arch/powerpc/platforms/chrp/Kconfig"
+source "arch/powerpc/platforms/512x/Kconfig"
source "arch/powerpc/platforms/52xx/Kconfig"
source "arch/powerpc/platforms/powermac/Kconfig"
source "arch/powerpc/platforms/prep/Kconfig"
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index c3ee0b5..e21ffa5 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -14,7 +14,7 @@ choice
There are five families of 32 bit PowerPC chips supported.
The most common ones are the desktop and server CPUs (601, 603,
604, 740, 750, 74xx) CPUs from Freescale and IBM, with their
- embedded 52xx/82xx/83xx/86xx counterparts.
+ embedded 512x/52xx/82xx/83xx/86xx counterparts.
The other embeeded parts, namely 4xx, 8xx, e200 (55xx) and e500
(85xx) each form a family of their own that is not compatible
with the others.
@@ -22,7 +22,7 @@ choice
If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
config 6xx
- bool "52xx/6xx/7xx/74xx/82xx/83xx/86xx"
+ bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
select PPC_FPU
config PPC_85xx
@@ -229,7 +229,7 @@ config NR_CPUS
config NOT_COHERENT_CACHE
bool
- depends on 4xx || 8xx || E200
+ depends on 4xx || 8xx || E200 || PPC_512x
default y
config CHECK_CACHE_COHERENCY
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index 6d9079d..633a599 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -11,6 +11,7 @@ endif
obj-$(CONFIG_PPC_CHRP) += chrp/
obj-$(CONFIG_40x) += 40x/
obj-$(CONFIG_44x) += 44x/
+obj-$(CONFIG_PPC_512x) += 512x/
obj-$(CONFIG_PPC_MPC52xx) += 52xx/
obj-$(CONFIG_PPC_8xx) += 8xx/
obj-$(CONFIG_PPC_82xx) += 82xx/
--
1.5.3.5.726.g41a7a
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