diff options
Diffstat (limited to 'arch/powerpc/platforms/83xx/mpc837x_rdb.c')
-rw-r--r-- | arch/powerpc/platforms/83xx/mpc837x_rdb.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/83xx/mpc837x_rdb.c b/arch/powerpc/platforms/83xx/mpc837x_rdb.c new file mode 100644 index 00000000..7bafbf2e --- /dev/null +++ b/arch/powerpc/platforms/83xx/mpc837x_rdb.c @@ -0,0 +1,130 @@ +/* + * arch/powerpc/platforms/83xx/mpc837x_rdb.c + * + * Copyright (C) 2007 Freescale Semicondutor, Inc. All rights reserved. + * + * MPC837x RDB board specific routines + * + * 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/pci.h> +#include <linux/of_platform.h> + +#include <asm/time.h> +#include <asm/ipic.h> +#include <asm/udbg.h> +#include <sysdev/fsl_soc.h> +#include <sysdev/fsl_pci.h> + +#include "mpc83xx.h" + +static void mpc837x_rdb_sd_cfg(void) +{ + void __iomem *im; + + im = ioremap(get_immrbase(), 0x1000); + if (!im) { + WARN_ON(1); + return; + } + + /* + * On RDB boards (in contrast to MDS) USBB pins are used for SD only, + * so we can safely mux them away from the USB block. + */ + clrsetbits_be32(im + MPC83XX_SICRL_OFFS, MPC837X_SICRL_USBB_MASK, + MPC837X_SICRL_SD); + clrsetbits_be32(im + MPC83XX_SICRH_OFFS, MPC837X_SICRH_SPI_MASK, + MPC837X_SICRH_SD); + iounmap(im); +} + +/* ************************************************************************ + * + * Setup the architecture + * + */ +static void __init mpc837x_rdb_setup_arch(void) +{ +#ifdef CONFIG_PCI + struct device_node *np; +#endif + + if (ppc_md.progress) + ppc_md.progress("mpc837x_rdb_setup_arch()", 0); + +#ifdef CONFIG_PCI + for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") + mpc83xx_add_bridge(np); + for_each_compatible_node(np, "pci", "fsl,mpc8314-pcie") + mpc83xx_add_bridge(np); +#endif + mpc837x_usb_cfg(); + mpc837x_rdb_sd_cfg(); +} + +static struct of_device_id mpc837x_ids[] = { + { .type = "soc", }, + { .compatible = "soc", }, + { .compatible = "simple-bus", }, + { .compatible = "gianfar", }, + { .compatible = "gpio-leds", }, + {}, +}; + +static int __init mpc837x_declare_of_platform_devices(void) +{ + /* Publish platform_device */ + of_platform_bus_probe(NULL, mpc837x_ids, NULL); + + return 0; +} +machine_device_initcall(mpc837x_rdb, mpc837x_declare_of_platform_devices); + +static void __init mpc837x_rdb_init_IRQ(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "fsl,ipic"); + if (!np) + return; + + ipic_init(np, 0); + + /* Initialize the default interrupt mapping priorities, + * in case the boot rom changed something on us. + */ + ipic_set_default_priority(); +} + +static const char *board[] __initdata = { + "fsl,mpc8377rdb", + "fsl,mpc8378rdb", + "fsl,mpc8379rdb", + "fsl,mpc8377wlan", + NULL +}; + +/* + * Called very early, MMU is off, device-tree isn't unflattened + */ +static int __init mpc837x_rdb_probe(void) +{ + return of_flat_dt_match(of_get_flat_dt_root(), board); +} + +define_machine(mpc837x_rdb) { + .name = "MPC837x RDB/WLAN", + .probe = mpc837x_rdb_probe, + .setup_arch = mpc837x_rdb_setup_arch, + .init_IRQ = mpc837x_rdb_init_IRQ, + .get_irq = ipic_get_irq, + .restart = mpc83xx_restart, + .time_init = mpc83xx_time_init, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; |