Copied from 83xx minus support for two busses.
Signed-off-by: John Rigby <[EMAIL PROTECTED]>
---
arch/powerpc/Kconfig | 2 +-
arch/powerpc/platforms/512x/Kconfig | 1 +
arch/powerpc/platforms/512x/Makefile | 1 +
arch/powerpc/platforms/512x/mpc5121_ads.c | 10 ++++
arch/powerpc/platforms/512x/mpc512x.h | 1 +
arch/powerpc/platforms/512x/pci.c | 84 +++++++++++++++++++++++++++++
6 files changed, 98 insertions(+), 1 deletions(-)
create mode 100644 arch/powerpc/platforms/512x/pci.c
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 3934e26..5a467a1 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -545,7 +545,7 @@ config MCA
config PCI
bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
|| PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
- || PPC_PS3 || 44x
+ || PPC_PS3 || 44x || PPC_MPC512x
default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \
&& !PPC_85xx && !PPC_86xx
default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
diff --git a/arch/powerpc/platforms/512x/Kconfig
b/arch/powerpc/platforms/512x/Kconfig
index 0fd3b00..a0eae56 100644
--- a/arch/powerpc/platforms/512x/Kconfig
+++ b/arch/powerpc/platforms/512x/Kconfig
@@ -2,6 +2,7 @@ config PPC_MPC512x
bool
select FSL_SOC
select IPIC
+ select PPC_INDIRECT_PCI
config PPC_MPC5121
bool
diff --git a/arch/powerpc/platforms/512x/Makefile
b/arch/powerpc/platforms/512x/Makefile
index aaa934b..3292b44 100644
--- a/arch/powerpc/platforms/512x/Makefile
+++ b/arch/powerpc/platforms/512x/Makefile
@@ -4,3 +4,4 @@
obj-y := clock.o mpc512x_shared.o
obj-$(CONFIG_MPC5121_ADS) += mpc5121_ads.o mpc5121_ads_cpld.o
obj-$(CONFIG_MPC5121_GENERIC) += mpc5121_generic.o
+obj-$(CONFIG_PCI) += pci.o
diff --git a/arch/powerpc/platforms/512x/mpc5121_ads.c
b/arch/powerpc/platforms/512x/mpc5121_ads.c
index 36805fd..dd533ff 100644
--- a/arch/powerpc/platforms/512x/mpc5121_ads.c
+++ b/arch/powerpc/platforms/512x/mpc5121_ads.c
@@ -22,16 +22,26 @@
#include <asm/prom.h>
#include <asm/time.h>
+#include <sysdev/fsl_soc.h>
+
#include "mpc512x.h"
#include "mpc5121_ads.h"
static void __init mpc5121_ads_setup_arch(void)
{
+#ifdef CONFIG_PCI
+ struct device_node *np;
+#endif
printk(KERN_INFO "MPC5121 ADS board from Freescale Semiconductor\n");
/*
* cpld regs are needed early
*/
mpc5121_ads_cpld_map();
+
+#ifdef CONFIG_PCI
+ for_each_compatible_node(np, "pci", "fsl,mpc5121-pci")
+ mpc512x_add_bridge(np);
+#endif
}
static struct of_device_id __initdata of_bus_ids[] = {
diff --git a/arch/powerpc/platforms/512x/mpc512x.h
b/arch/powerpc/platforms/512x/mpc512x.h
index 789b817..be30915 100644
--- a/arch/powerpc/platforms/512x/mpc512x.h
+++ b/arch/powerpc/platforms/512x/mpc512x.h
@@ -11,4 +11,5 @@
#define __MPC512X_H__
extern unsigned long mpc512x_find_ips_freq(struct device_node *node);
extern void __init mpc512x_init_IRQ(void);
+extern int mpc512x_add_bridge(struct device_node *dev);
#endif /* __MPC512X_H__ */
diff --git a/arch/powerpc/platforms/512x/pci.c
b/arch/powerpc/platforms/512x/pci.c
new file mode 100644
index 0000000..7ed9b34
--- /dev/null
+++ b/arch/powerpc/platforms/512x/pci.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Original copied from 83xx/pci.c:
+ *
+ * FSL SoC setup code
+ *
+ * Maintained by Kumar Gala (see MAINTAINERS for contact information)
+ *
+ * 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/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/io.h>
+
+#include <asm/system.h>
+#include <asm/atomic.h>
+#include <asm/pci-bridge.h>
+#include <asm/prom.h>
+#include <sysdev/fsl_soc.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+int __init mpc512x_add_bridge(struct device_node *dev)
+{
+ int len;
+ struct pci_controller *hose;
+ struct resource rsrc;
+ const int *bus_range;
+ int has_address = 0;
+ phys_addr_t immr = get_immrbase();
+
+ DBG("Adding PCI host bridge %s\n", dev->full_name);
+
+ /* Fetch host bridge registers address */
+ has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
+
+ /* Get bus range if any */
+ bus_range = of_get_property(dev, "bus-range", &len);
+ if (bus_range == NULL || len < 2 * sizeof(int)) {
+ printk(KERN_WARNING "Can't get bus-range for %s, assume"
+ " bus 0\n", dev->full_name);
+ }
+
+ ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
+ hose = pcibios_alloc_controller(dev);
+ if (!hose)
+ return -ENOMEM;
+
+ hose->first_busno = bus_range ? bus_range[0] : 0;
+ hose->last_busno = bus_range ? bus_range[1] : 0xff;
+
+ setup_indirect_pci(hose, immr + 0x8300, immr + 0x8304, 0);
+
+ printk(KERN_INFO "Found MPC512x PCI host bridge at 0x%016llx. "
+ "Firmware bus number: %d->%d\n",
+ (unsigned long long)rsrc.start, hose->first_busno,
+ hose->last_busno);
+
+ DBG(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
+ hose, hose->cfg_addr, hose->cfg_data);
+
+ /* Interpret the "ranges" property */
+ /* This also maps the I/O region and sets isa_io/mem_base */
+ pci_process_bridge_OF_ranges(hose, dev, 1);
+
+ return 0;
+}
--
1.5.6.rc0.46.gd2b3
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