diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx')
| -rw-r--r-- | arch/powerpc/platforms/85xx/Kconfig | 12 | ||||
| -rw-r--r-- | arch/powerpc/platforms/85xx/Makefile | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/85xx/stx_gp3.c | 187 |
3 files changed, 198 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 7748a3a426d..26f9cd52e9f 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -38,6 +38,14 @@ config MPC85xx_DS help This option enables support for the MPC85xx DS (MPC8544 DS) board +config STX_GP3 + bool "Silicon Turnkey Express GP3" + help + This option enables support for the Silicon Turnkey Express GP3 + board. + select DEFAULT_UIMAGE + select PPC_CPM_NEW_BINDING + endchoice config MPC8540 @@ -49,7 +57,7 @@ config MPC8540 config MPC8560 bool select CPM2 - default y if MPC8560_ADS + default y if MPC8560_ADS || STX_GP3 config MPC85xx bool @@ -59,4 +67,4 @@ 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 + || MPC85xx_MDS || MPC85xx_DS || STX_GP3 diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile index 5eca92023ec..bf7d2e1c07e 100644 --- a/arch/powerpc/platforms/85xx/Makefile +++ b/arch/powerpc/platforms/85xx/Makefile @@ -6,3 +6,4 @@ 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_STX_GP3) += stx_gp3.o diff --git a/arch/powerpc/platforms/85xx/stx_gp3.c b/arch/powerpc/platforms/85xx/stx_gp3.c new file mode 100644 index 00000000000..0b20c170c4d --- /dev/null +++ b/arch/powerpc/platforms/85xx/stx_gp3.c @@ -0,0 +1,187 @@ +/* + * Based on MPC8560 ADS and arch/ppc stx_gp3 ports + * + * Maintained by Kumar Gala (see MAINTAINERS for contact information) + * + * Copyright 2008 Freescale Semiconductor Inc. + * + * Dan Malek <dan@embeddededge.com> + * Copyright 2004 Embedded Edge, LLC + * + * Copied from mpc8560_ads.c + * Copyright 2002, 2003 Motorola Inc. + * + * Ported to 2.6, Matt Porter <mporter@kernel.crashing.org> + * Copyright 2004-2005 MontaVista Software, 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/pci.h> +#include <linux/kdev_t.h> +#include <linux/delay.h> +#include <linux/seq_file.h> +#include <linux/of_platform.h> + +#include <asm/system.h> +#include <asm/time.h> +#include <asm/machdep.h> +#include <asm/pci-bridge.h> +#include <asm/mpic.h> +#include <asm/prom.h> +#include <mm/mmu_decl.h> +#include <asm/udbg.h> + +#include <sysdev/fsl_soc.h> +#include <sysdev/fsl_pci.h> + +#ifdef CONFIG_CPM2 +#include <asm/cpm2.h> +#include <sysdev/cpm2_pic.h> + +static void cpm2_cascade(unsigned int irq, struct irq_desc *desc) +{ + int cascade_irq; + + while ((cascade_irq = cpm2_get_irq()) >= 0) + generic_handle_irq(cascade_irq); + + desc->chip->eoi(irq); +} +#endif /* CONFIG_CPM2 */ + +static void __init stx_gp3_pic_init(void) +{ + struct mpic *mpic; + struct resource r; + struct device_node *np; +#ifdef CONFIG_CPM2 + int irq; +#endif + + np = of_find_node_by_type(NULL, "open-pic"); + if (!np) { + printk(KERN_ERR "Could not find open-pic node\n"); + return; + } + + if (of_address_to_resource(np, 0, &r)) { + printk(KERN_ERR "Could not 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); + of_node_put(np); + + mpic_init(mpic); + +#ifdef CONFIG_CPM2 + /* Setup CPM2 PIC */ + np = of_find_compatible_node(NULL, NULL, "fsl,cpm2-pic"); + if (np == NULL) { + printk(KERN_ERR "PIC init: can not find fsl,cpm2-pic node\n"); + return; + } + irq = irq_of_parse_and_map(np, 0); + + if (irq == NO_IRQ) { + of_node_put(np); + printk(KERN_ERR "PIC init: got no IRQ for cpm cascade\n"); + return; + } + + cpm2_pic_init(np); + of_node_put(np); + set_irq_chained_handler(irq, cpm2_cascade); +#endif +} + +/* + * Setup the architecture + */ +static void __init stx_gp3_setup_arch(void) +{ +#ifdef CONFIG_PCI + struct device_node *np; +#endif + + if (ppc_md.progress) + ppc_md.progress("stx_gp3_setup_arch()", 0); + +#ifdef CONFIG_CPM2 + cpm2_reset(); +#endif + +#ifdef CONFIG_PCI + for_each_compatible_node(np, "pci", "fsl,mpc8540-pci") + fsl_add_bridge(np, 1); +#endif +} + +static void stx_gp3_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: RPC Electronics STx \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", }, + { .name = "cpm", }, + { .name = "localbus", }, + { .compatible = "simple-bus", }, + {}, +}; + +static int __init declare_of_platform_devices(void) +{ + of_platform_bus_probe(NULL, of_bus_ids, NULL); + + return 0; +} +machine_device_initcall(stx_gp3, declare_of_platform_devices); + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init stx_gp3_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "stx,gp3-8560"); +} + +define_machine(stx_gp3) { + .name = "STX GP3", + .probe = stx_gp3_probe, + .setup_arch = stx_gp3_setup_arch, + .init_IRQ = stx_gp3_pic_init, + .show_cpuinfo = stx_gp3_show_cpuinfo, + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; |