From 0052bc5d5c3adc4ee4ba567470aebe775fcf2006 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Thu, 24 Jan 2008 23:53:03 -0600 Subject: [POWERPC] 85xx: Port TQM85xx boards over from arch/ppc Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/Kconfig | 39 +++++++ arch/powerpc/platforms/85xx/Makefile | 1 + arch/powerpc/platforms/85xx/tqm85xx.c | 191 ++++++++++++++++++++++++++++++++++ 3 files changed, 231 insertions(+) create mode 100644 arch/powerpc/platforms/85xx/tqm85xx.c (limited to 'arch/powerpc/platforms/85xx') diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 26f9cd52e9f..7896f0686bc 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -46,8 +46,47 @@ config STX_GP3 select DEFAULT_UIMAGE select PPC_CPM_NEW_BINDING +config TQM8540 + bool "TQ Components TQM8540" + help + This option enables support for the TQ Components TQM8540 board. + select DEFAULT_UIMAGE + select PPC_CPM_NEW_BINDING + select TQM85xx + +config TQM8541 + bool "TQ Components TQM8541" + help + This option enables support for the TQ Components TQM8541 board. + select DEFAULT_UIMAGE + select PPC_CPM_NEW_BINDING + select TQM85xx + select CPM2 + +config TQM8555 + bool "TQ Components TQM8555" + help + This option enables support for the TQ Components TQM8555 board. + select DEFAULT_UIMAGE + select PPC_CPM_NEW_BINDING + select TQM85xx + select CPM2 + +config TQM8560 + bool "TQ Components TQM8560" + help + This option enables support for the TQ Components TQM8560 board. + select DEFAULT_UIMAGE + select PPC_CPM_NEW_BINDING + select TQM85xx + select CPM2 + endchoice +config TQM85xx + bool + select MPC85xx + config MPC8540 bool select PPC_UDBG_16550 diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile index bf7d2e1c07e..8c761d1671a 100644 --- a/arch/powerpc/platforms/85xx/Makefile +++ b/arch/powerpc/platforms/85xx/Makefile @@ -7,3 +7,4 @@ 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 +obj-$(CONFIG_TQM85xx) += tqm85xx.o diff --git a/arch/powerpc/platforms/85xx/tqm85xx.c b/arch/powerpc/platforms/85xx/tqm85xx.c new file mode 100644 index 00000000000..2a08b315e19 --- /dev/null +++ b/arch/powerpc/platforms/85xx/tqm85xx.c @@ -0,0 +1,191 @@ +/* + * Based on MPC8560 ADS and arch/ppc tqm85xx ports + * + * Maintained by Kumar Gala (see MAINTAINERS for contact information) + * + * Copyright 2008 Freescale Semiconductor Inc. + * + * Copyright (c) 2005-2006 DENX Software Engineering + * Stefan Roese + * + * Based on original work by + * Kumar Gala + * Copyright 2004 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 as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#ifdef CONFIG_CPM2 +#include +#include + +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 tqm85xx_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 tqm85xx_setup_arch(void) +{ +#ifdef CONFIG_PCI + struct device_node *np; +#endif + + if (ppc_md.progress) + ppc_md.progress("tqm85xx_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 tqm85xx_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: TQ Components\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(tqm85xx, declare_of_platform_devices); + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init tqm85xx_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if ((of_flat_dt_is_compatible(root, "tqm,8540")) || + (of_flat_dt_is_compatible(root, "tqm,8541")) || + (of_flat_dt_is_compatible(root, "tqm,8555")) || + (of_flat_dt_is_compatible(root, "tqm,8560"))) + return 1; + + return 0; +} + +define_machine(tqm85xx) { + .name = "TQM85xx", + .probe = tqm85xx_probe, + .setup_arch = tqm85xx_setup_arch, + .init_IRQ = tqm85xx_pic_init, + .show_cpuinfo = tqm85xx_show_cpuinfo, + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; -- cgit v1.2.3