[PATCH 3/4 v4] POWERPC: Add initial iomega StorCenter board port.
Jon Loeliger
jdl at jdl.com
Thu Jan 24 05:42:50 EST 2008
Use cuImage bootwrapper until U-Boot port is completed.
Derived heavily from Linkstation port.
Signed-off-by: Jon Loeliger <jdl at freescale.com>
Acked-by: Andy Wilcox <andy at protium.com>
---
arch/powerpc/boot/Makefile | 3 +-
arch/powerpc/boot/cuboot-824x.c | 53 +++++++
arch/powerpc/platforms/embedded6xx/Kconfig | 23 ++-
arch/powerpc/platforms/embedded6xx/Makefile | 1 +
arch/powerpc/platforms/embedded6xx/storcenter.c | 190 +++++++++++++++++++++++
5 files changed, 263 insertions(+), 7 deletions(-)
create mode 100644 arch/powerpc/boot/cuboot-824x.c
create mode 100644 arch/powerpc/platforms/embedded6xx/storcenter.c
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index d1e625c..a59b176 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -57,7 +57,7 @@ src-wlib := string.S crt0.S stdio.c main.c \
4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \
fsl-soc.c mpc8xx.c pq2.c
-src-plat := of.c cuboot-52xx.c cuboot-83xx.c cuboot-85xx.c holly.c \
+src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \
cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \
@@ -196,6 +196,7 @@ image-$(CONFIG_PPC_EP88XC) += zImage.ep88xc
image-$(CONFIG_EP405) += zImage.ep405
image-$(CONFIG_8260) += cuImage.pq2
image-$(CONFIG_PPC_MPC52xx) += cuImage.52xx
+image-$(CONFIG_STORCENTER) += cuImage.824x
image-$(CONFIG_PPC_83xx) += cuImage.83xx
image-$(CONFIG_PPC_85xx) += cuImage.85xx
image-$(CONFIG_MPC7448HPC2) += cuImage.hpc2
diff --git a/arch/powerpc/boot/cuboot-824x.c b/arch/powerpc/boot/cuboot-824x.c
new file mode 100644
index 0000000..ced90c5
--- /dev/null
+++ b/arch/powerpc/boot/cuboot-824x.c
@@ -0,0 +1,53 @@
+/*
+ * Old U-boot compatibility for 824x
+ *
+ * Copyright (c) 2007 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 version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include "ops.h"
+#include "stdio.h"
+#include "cuboot.h"
+
+#define TARGET_824x
+#include "ppcboot.h"
+
+static bd_t bd;
+
+
+static void platform_fixups(void)
+{
+ void *soc;
+
+ dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
+ dt_fixup_mac_addresses(bd.bi_enetaddr);
+ dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
+
+ soc = find_node_by_devtype(NULL, "soc");
+ if (soc) {
+ void *serial = NULL;
+
+ setprop(soc, "bus-frequency", &bd.bi_busfreq,
+ sizeof(bd.bi_busfreq));
+
+ while ((serial = find_node_by_devtype(serial, "serial"))) {
+ if (get_parent(serial) != soc)
+ continue;
+
+ setprop(serial, "clock-frequency", &bd.bi_busfreq,
+ sizeof(bd.bi_busfreq));
+ }
+ }
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ CUBOOT_INIT();
+ fdt_init(_dtb_start);
+ serial_console_init();
+ platform_ops.fixups = platform_fixups;
+}
diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig
index 8924095..6c80837 100644
--- a/arch/powerpc/platforms/embedded6xx/Kconfig
+++ b/arch/powerpc/platforms/embedded6xx/Kconfig
@@ -9,6 +9,8 @@ config LINKSTATION
select FSL_SOC
select PPC_UDBG_16550 if SERIAL_8250
select DEFAULT_UIMAGE
+ select MPC10X_OPENPIC
+ select MPC10X_BRIDGE
help
Select LINKSTATION if configuring for one of PPC- (MPC8241)
based NAS systems from Buffalo Technology. So far only
@@ -16,6 +18,19 @@ config LINKSTATION
Linkstation-I HD-HLAN and HD-HGLAN versions, and PPC-based
Terastation systems should be supported too.
+config STORCENTER
+ bool "IOMEGA StorCenter"
+ depends on EMBEDDED6xx
+ select MPIC
+ select FSL_SOC
+ select PPC_UDBG_16550 if SERIAL_8250
+ select WANT_DEVICE_TREE
+ select MPC10X_OPENPIC
+ select MPC10X_BRIDGE
+ help
+ Select STORCENTER if configuring for the iomega StorCenter
+ with an 8241 CPU in it.
+
config MPC7448HPC2
bool "Freescale MPC7448HPC2(Taiga)"
depends on EMBEDDED6xx
@@ -23,6 +38,7 @@ config MPC7448HPC2
select DEFAULT_UIMAGE
select PPC_UDBG_16550
select WANT_DEVICE_TREE
+ select TSI108_BRIDGE
help
Select MPC7448HPC2 if configuring for Freescale MPC7448HPC2 (Taiga)
platform
@@ -33,6 +49,7 @@ config PPC_HOLLY
select TSI108_BRIDGE
select PPC_UDBG_16550
select WANT_DEVICE_TREE
+ select TSI108_BRIDGE
help
Select PPC_HOLLY if configuring for an IBM 750GX/CL Eval
Board with TSI108/9 bridge (Hickory/Holly)
@@ -48,17 +65,13 @@ config PPC_PRPMC2800
config TSI108_BRIDGE
bool
- depends on MPC7448HPC2 || PPC_HOLLY
select PCI
select MPIC
select MPIC_WEIRD
- default y
config MPC10X_BRIDGE
bool
- depends on LINKSTATION
select PPC_INDIRECT_PCI
- default y
config MV64X60
bool
@@ -67,8 +80,6 @@ config MV64X60
config MPC10X_OPENPIC
bool
- depends on LINKSTATION
- default y
config MPC10X_STORE_GATHERING
bool "Enable MPC10x store gathering"
diff --git a/arch/powerpc/platforms/embedded6xx/Makefile b/arch/powerpc/platforms/embedded6xx/Makefile
index 844947c..06524d3 100644
--- a/arch/powerpc/platforms/embedded6xx/Makefile
+++ b/arch/powerpc/platforms/embedded6xx/Makefile
@@ -3,5 +3,6 @@
#
obj-$(CONFIG_MPC7448HPC2) += mpc7448_hpc2.o
obj-$(CONFIG_LINKSTATION) += linkstation.o ls_uart.o
+obj-$(CONFIG_STORCENTER) += storcenter.o
obj-$(CONFIG_PPC_HOLLY) += holly.o
obj-$(CONFIG_PPC_PRPMC2800) += prpmc2800.o
diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c
new file mode 100644
index 0000000..56cc317
--- /dev/null
+++ b/arch/powerpc/platforms/embedded6xx/storcenter.c
@@ -0,0 +1,190 @@
+/*
+ * Board setup routines for the storcenter
+ *
+ * Copyright 2007 (C) Oyvind Repvik (nail at nslu2-linux.org)
+ * Copyright 2007 Andy Wilcox, Jon Loeliger
+ *
+ * Based on linkstation.c by G. Liakhovetski
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of
+ * any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/initrd.h>
+#include <linux/mtd/physmap.h>
+#include <linux/of_platform.h>
+
+#include <asm/system.h>
+#include <asm/time.h>
+#include <asm/prom.h>
+#include <asm/mpic.h>
+#include <asm/pci-bridge.h>
+
+#include "mpc10x.h"
+
+
+#ifdef CONFIG_MTD_PHYSMAP
+static struct mtd_partition storcenter_physmap_partitions[] = {
+ {
+ .name = "kernel",
+ .offset = 0x000000,
+ .size = 0x170000,
+ },
+ {
+ .name = "rootfs",
+ .offset = 0x170000,
+ .size = 0x590000,
+ },
+ {
+ .name = "uboot",
+ .offset = 0x700000,
+ .size = 0x040000,
+ },
+ {
+ .name = "config",
+ .offset = 0x740000,
+ .size = 0x0c0000,
+ },
+};
+#endif
+
+
+static __initdata struct of_device_id storcenter_of_bus[] = {
+ { .name = "soc", },
+ {},
+};
+
+static int __init storcenter_device_probe(void)
+{
+ of_platform_bus_probe(NULL, storcenter_of_bus, NULL);
+ return 0;
+}
+machine_device_initcall(storcenter, storcenter_device_probe);
+
+
+static int __init storcenter_add_bridge(struct device_node *dev)
+{
+#ifdef CONFIG_PCI
+ int len;
+ struct pci_controller *hose;
+ const int *bus_range;
+
+ printk("Adding PCI host bridge %s\n", dev->full_name);
+
+ hose = pcibios_alloc_controller(dev);
+ if (hose == NULL)
+ return -ENOMEM;
+
+ bus_range = of_get_property(dev, "bus-range", &len);
+ hose->first_busno = bus_range ? bus_range[0] : 0;
+ hose->last_busno = bus_range ? bus_range[1] : 0xff;
+
+ setup_indirect_pci(hose, MPC10X_MAPB_CNFG_ADDR, MPC10X_MAPB_CNFG_DATA, 0);
+
+ /* 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);
+#endif
+
+ return 0;
+}
+
+static void __init storcenter_setup_arch(void)
+{
+ struct device_node *np;
+
+#ifdef CONFIG_MTD_PHYSMAP
+ physmap_set_partitions(storcenter_physmap_partitions,
+ ARRAY_SIZE(storcenter_physmap_partitions));
+#endif
+
+ /* Lookup PCI host bridges */
+ for_each_compatible_node(np, "pci", "mpc10x-pci")
+ storcenter_add_bridge(np);
+
+ printk(KERN_INFO "IOMEGA StorCenter\n");
+}
+
+/*
+ * Interrupt setup and service. Interrrupts on the turbostation come
+ * from the four PCI slots plus onboard 8241 devices: I2C, DUART.
+ */
+static void __init storcenter_init_IRQ(void)
+{
+ struct mpic *mpic;
+ struct device_node *dnp;
+ const void *prop;
+ int size;
+ phys_addr_t paddr;
+
+ dnp = of_find_node_by_type(NULL, "open-pic");
+ if (dnp == NULL)
+ return;
+
+ prop = of_get_property(dnp, "reg", &size);
+ if (prop == NULL)
+ return;
+
+ paddr = (phys_addr_t)of_translate_address(dnp, prop);
+ mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET,
+ 4, 32, " EPIC ");
+
+ of_node_put(dnp);
+
+ BUG_ON(mpic == NULL);
+
+ /* PCI IRQs */
+ /*
+ * 2.6.12 patch:
+ * openpic_set_sources(0, 5, OpenPIC_Addr + 0x10200);
+ * openpic_set_sources(5, 2, OpenPIC_Addr + 0x11120);
+ * first_irq, num_irqs, __iomem first_ISR
+ * o_ss: i, src: 0, fdf50200
+ * o_ss: i, src: 1, fdf50220
+ * o_ss: i, src: 2, fdf50240
+ * o_ss: i, src: 3, fdf50260
+ * o_ss: i, src: 4, fdf50280
+ * o_ss: i, src: 5, fdf51120
+ * o_ss: i, src: 6, fdf51140
+ */
+ mpic_assign_isu(mpic, 0, paddr + 0x10200);
+ mpic_assign_isu(mpic, 1, paddr + 0x10220);
+ mpic_assign_isu(mpic, 2, paddr + 0x10240);
+ mpic_assign_isu(mpic, 3, paddr + 0x10260);
+ mpic_assign_isu(mpic, 4, paddr + 0x10280);
+ mpic_assign_isu(mpic, 5, paddr + 0x11120);
+ mpic_assign_isu(mpic, 6, paddr + 0x11140);
+
+ mpic_init(mpic);
+}
+
+static void storcenter_restart(char *cmd)
+{
+ local_irq_disable();
+
+ /* Set exception prefix high - to the firmware */
+ _nmask_and_or_msr(0, MSR_IP);
+
+ /* Wait for reset to happen */
+ for (;;) ;
+}
+
+static int __init storcenter_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ return of_flat_dt_is_compatible(root, "storcenter");
+}
+
+define_machine(storcenter){
+ .name = "IOMEGA StorCenter",
+ .probe = storcenter_probe,
+ .setup_arch = storcenter_setup_arch,
+ .init_IRQ = storcenter_init_IRQ,
+ .get_irq = mpic_get_irq,
+ .restart = storcenter_restart,
+ .calibrate_decr = generic_calibrate_decr,
+};
--
1.5.4.rc0
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