[PATCH 1/3] sbc8548: Add basic support for Wind River SBC8548 as powerpc
Paul Gortmaker
paul.gortmaker at windriver.com
Fri Dec 21 17:43:51 EST 2007
This adds the basic support for the Wind River SBC8548 board, implemented
as powerpc. It closely follows the implementation of the MPC8548CDS.
Signed-off-by: Paul Gortmaker <paul.gortmaker at windriver.com>
---
arch/powerpc/platforms/85xx/Kconfig | 10 ++-
arch/powerpc/platforms/85xx/Makefile | 1 +
arch/powerpc/platforms/85xx/sbc8548.c | 182 +++++++++++++++++++++++++++++++++
3 files changed, 191 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 33d3bea..8407f43 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -39,6 +39,12 @@ config MPC85xx_DS
help
This option enables support for the MPC85xx DS (MPC8544 DS) board
+config SBC8548
+ bool "Wind River SBC8548"
+ select DEFAULT_UIMAGE
+ help
+ This option enables support for the Wind River SBC8548 board
+
config SBC8560
bool "Wind River SBC8560"
select DEFAULT_UIMAGE
@@ -52,7 +58,7 @@ config MPC8540
bool
select PPC_UDBG_16550
select PPC_INDIRECT_PCI
- default y if MPC8540_ADS || MPC85xx_CDS
+ default y if MPC8540_ADS || MPC85xx_CDS || SBC8548
config MPC8560
bool
@@ -66,4 +72,4 @@ config MPC85xx
select FSL_PCI if PCI
select SERIAL_8250_SHARE_IRQ if SERIAL_8250
default y if MPC8540_ADS || MPC85xx_CDS || MPC8560_ADS \
- || MPC85xx_MDS || MPC85xx_DS || SBC8560
+ || MPC85xx_MDS || MPC85xx_DS || SBC8560 || SBC8548
diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index c3f4d01..3a47b7a 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -6,4 +6,5 @@ obj-$(CONFIG_MPC8560_ADS) += mpc85xx_ads.o
obj-$(CONFIG_MPC85xx_CDS) += mpc85xx_cds.o
obj-$(CONFIG_MPC85xx_DS) += mpc85xx_ds.o
obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o
+obj-$(CONFIG_SBC8548) += sbc8548.o
obj-$(CONFIG_SBC8560) += sbc8560.o
diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c
new file mode 100644
index 0000000..f3ab271
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/sbc8548.c
@@ -0,0 +1,182 @@
+/*
+ * Wind River SBC8548 setup and early boot code.
+ *
+ * Copyright 2007 Wind River Systems Inc.
+ *
+ * By Paul Gortmaker (see MAINTAINERS for contact information)
+ *
+ * Based largely on the MPC8548CDS support - Copyright 2005 Freescale 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/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/pci.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/initrd.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/fsl_devices.h>
+#include <linux/of_platform.h>
+
+#include <asm/system.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/atomic.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/pci-bridge.h>
+#include <asm/irq.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+
+#ifdef CONFIG_PCI
+static int sbc8548_exclude_device(struct pci_controller *hose,
+ u_char bus, u_char devfn)
+{
+ if (bus == 0 && PCI_SLOT(devfn) == 0)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+ else
+ return PCIBIOS_SUCCESSFUL;
+}
+#endif
+
+static void __init sbc8548_pic_init(void)
+{
+ struct mpic *mpic;
+ struct resource r;
+ struct device_node *np = NULL;
+
+ np = of_find_node_by_type(np, "open-pic");
+
+ if (np == NULL) {
+ printk(KERN_ERR "Could not find open-pic node\n");
+ return;
+ }
+
+ if (of_address_to_resource(np, 0, &r)) {
+ printk(KERN_ERR "Failed to map mpic register space\n");
+ of_node_put(np);
+ return;
+ }
+
+ mpic = mpic_alloc(np, r.start,
+ MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
+ 0, 256, " OpenPIC ");
+ BUG_ON(mpic == NULL);
+
+ /* Return the mpic node */
+ of_node_put(np);
+
+ mpic_init(mpic);
+}
+
+/*
+ * Setup the architecture
+ */
+static void __init sbc8548_setup_arch(void)
+{
+#ifdef CONFIG_PCI
+ struct device_node *np;
+#endif
+
+ if (ppc_md.progress)
+ ppc_md.progress("sbc8548_setup_arch()", 0);
+
+#ifdef CONFIG_PCI
+ for_each_node_by_type(np, "pci") {
+ if (of_device_is_compatible(np, "fsl,mpc8540-pci") ||
+ of_device_is_compatible(np, "fsl,mpc8548-pcie")) {
+ struct resource rsrc;
+ of_address_to_resource(np, 0, &rsrc);
+ if ((rsrc.start & 0xfffff) == 0x8000)
+ fsl_add_bridge(np, 1);
+ else
+ fsl_add_bridge(np, 0);
+ }
+ }
+
+ ppc_md.pci_exclude_device = sbc8548_exclude_device;
+#endif
+}
+
+static void sbc8548_show_cpuinfo(struct seq_file *m)
+{
+ uint pvid, svid, phid1;
+ uint memsize = total_memory;
+
+ pvid = mfspr(SPRN_PVR);
+ svid = mfspr(SPRN_SVR);
+
+ seq_printf(m, "Vendor\t\t: Wind River\n");
+ seq_printf(m, "Machine\t\t: SBC8548\n");
+ seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
+ seq_printf(m, "SVR\t\t: 0x%x\n", svid);
+
+ /* Display cpu Pll setting */
+ phid1 = mfspr(SPRN_HID1);
+ seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
+
+ /* Display the amount of memory */
+ seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
+}
+
+static struct of_device_id __initdata of_bus_ids[] = {
+ { .name = "soc", },
+ { .type = "soc", },
+ {},
+};
+
+static int __init declare_of_platform_devices(void)
+{
+ if (!machine_is(sbc8548))
+ return 0;
+
+ of_platform_bus_probe(NULL, of_bus_ids, NULL);
+ return 0;
+}
+device_initcall(declare_of_platform_devices);
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init sbc8548_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ return of_flat_dt_is_compatible(root, "SBC8548");
+}
+
+define_machine(sbc8548) {
+ .name = "SBC8548",
+ .probe = sbc8548_probe,
+ .setup_arch = sbc8548_setup_arch,
+ .init_IRQ = sbc8548_pic_init,
+ .show_cpuinfo = sbc8548_show_cpuinfo,
+ .get_irq = mpic_get_irq,
+ .restart = fsl_rstcr_restart,
+#ifdef CONFIG_PCI
+ .pcibios_fixup_bus = fsl_pcibios_fixup_bus,
+#endif
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = udbg_progress,
+};
--
1.5.0.rc1.gf4b6c
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