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author | Paul Gortmaker <paul.gortmaker@windriver.com> | 2008-01-24 18:41:27 -0500 |
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committer | Kumar Gala <galak@kernel.crashing.org> | 2008-01-28 08:30:50 -0600 |
commit | 0e0fffe887673a04bb8f8ec8287c5057e2ed8f27 (patch) | |
tree | 42b5d35b90791cc929d2b7771f0dadcf39a8a640 /arch/powerpc/platforms/85xx | |
parent | 3ad1f93155221510101399af105af6019c7a8e3d (diff) | |
download | kernel_samsung_smdk4412-0e0fffe887673a04bb8f8ec8287c5057e2ed8f27.zip kernel_samsung_smdk4412-0e0fffe887673a04bb8f8ec8287c5057e2ed8f27.tar.gz kernel_samsung_smdk4412-0e0fffe887673a04bb8f8ec8287c5057e2ed8f27.tar.bz2 |
[POWERPC] 85xx: Add basic support for Wind River SBC8548 board
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@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/85xx')
-rw-r--r-- | arch/powerpc/platforms/85xx/Kconfig | 10 | ||||
-rw-r--r-- | arch/powerpc/platforms/85xx/Makefile | 1 | ||||
-rw-r--r-- | arch/powerpc/platforms/85xx/sbc8548.c | 169 |
3 files changed, 178 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 333779e..74779b9 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -83,6 +83,12 @@ config TQM8560 select TQM85xx select CPM2 +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 @@ -100,7 +106,7 @@ 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 MPC85xx bool @@ -110,4 +116,4 @@ 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 || STX_GP3 || SBC8560 + || MPC85xx_MDS || MPC85xx_DS || STX_GP3 || SBC8560 || SBC8548 diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile index 698f9f9..cb7af4e 100644 --- a/arch/powerpc/platforms/85xx/Makefile +++ b/arch/powerpc/platforms/85xx/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o obj-$(CONFIG_STX_GP3) += stx_gp3.o obj-$(CONFIG_TQM85xx) += tqm85xx.o obj-$(CONFIG_SBC8560) += sbc8560.o +obj-$(CONFIG_SBC8548) += sbc8548.o diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c new file mode 100644 index 0000000..de27b57 --- /dev/null +++ b/arch/powerpc/platforms/85xx/sbc8548.c @@ -0,0 +1,169 @@ +/* + * 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> + +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); + } + } +#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, +}; |