Add arch/powerpc board support for TQM5200. Signed-off-by: Marian Balakowicz <[EMAIL PROTECTED]> Signed-off-by: Jan Wrobel <[EMAIL PROTECTED]> ---
Kconfig | 5 + Makefile | 1 tqm5200.c | 174 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 180 insertions(+) diff --git a/arch/powerpc/platforms/52xx/Kconfig b/arch/powerpc/platforms/52xx/Kconfig index 3ffaa06..7c828eb 100644 --- a/arch/powerpc/platforms/52xx/Kconfig +++ b/arch/powerpc/platforms/52xx/Kconfig @@ -33,4 +33,9 @@ config PPC_LITE5200 select PPC_MPC5200 default n +config PPC_TQM5200 + bool "TQM5200 Board" + depends on PPC_MULTIPLATFORM && PPC32 + select PPC_MPC5200 + default n diff --git a/arch/powerpc/platforms/52xx/Makefile b/arch/powerpc/platforms/52xx/Makefile index b91e39c..4997ebf 100644 --- a/arch/powerpc/platforms/52xx/Makefile +++ b/arch/powerpc/platforms/52xx/Makefile @@ -8,5 +8,6 @@ endif obj-$(CONFIG_PPC_EFIKA) += efika.o obj-$(CONFIG_PPC_LITE5200) += lite5200.o +obj-$(CONFIG_PPC_TQM5200) += tqm5200.o obj-$(CONFIG_PM) += mpc52xx_sleep.o mpc52xx_pm.o diff --git a/arch/powerpc/platforms/52xx/tqm5200.c b/arch/powerpc/platforms/52xx/tqm5200.c new file mode 100644 index 0000000..780b79f --- /dev/null +++ b/arch/powerpc/platforms/52xx/tqm5200.c @@ -0,0 +1,174 @@ +/* + * TQM5200 board support + * + * Written by: Grant Likely <[EMAIL PROTECTED]> for lite5200 + * Adapted for tqm5200 by: Jan Wrobel <[EMAIL PROTECTED]> + * + * Copyright (C) Secret Lab Technologies Ltd. 2006. All rights reserved. + * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved. + * + * Description: + * 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. + */ + +#undef DEBUG + +#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/root_dev.h> +#include <linux/initrd.h> + +#include <asm/system.h> +#include <asm/atomic.h> +#include <asm/time.h> +#include <asm/io.h> +#include <asm/machdep.h> +#include <asm/ipic.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/prom.h> +#include <asm/udbg.h> +#include <sysdev/fsl_soc.h> +#include <asm/of_platform.h> + +#include <asm/mpc52xx.h> + +/* ************************************************************************ + * + * Setup the architecture + * + */ +static void __init +tqm5200_setup_cpu(void) +{ + struct mpc52xx_gpio __iomem *gpio; + u32 port_config; + + /* Map zones */ + gpio = mpc52xx_find_and_map("mpc5200-gpio"); + if (!gpio) { + printk(KERN_ERR __FILE__ ": " + "Error while mapping GPIO register for port config. " + "Expect some abnormal behavior\n"); + goto error; + } + + /* Set port config */ + port_config = in_be32(&gpio->port_config); + + port_config &= ~0x00800000; /* 48Mhz internal, pin is GPIO */ + + port_config &= ~0x00007000; /* USB port : Differential mode */ + port_config |= 0x00001000; /* USB 1 only */ + + port_config &= ~0x03000000; /* ATA CS is on csb_4/5 */ + port_config |= 0x01000000; + + pr_debug("port_config: old:%x new:%x\n", + in_be32(&gpio->port_config), port_config); + out_be32(&gpio->port_config, port_config); + + /* Unmap zone */ +error: + iounmap(gpio); +} + +static void __init tqm5200_setup_arch(void) +{ + struct device_node *np; + + if (ppc_md.progress) + ppc_md.progress("tqm5200_setup_arch()", 0); + + np = of_find_node_by_type(NULL, "cpu"); + if (np) { + unsigned int *fp = + (int *)of_get_property(np, "clock-frequency", NULL); + if (fp != 0) + loops_per_jiffy = *fp / HZ; + else + loops_per_jiffy = 50000000 / HZ; + of_node_put(np); + } + + /* CPU & Port mux setup */ + mpc52xx_setup_cpu(); + tqm5200_setup_cpu(); + +#ifdef CONFIG_PCI + np = of_find_node_by_type(NULL, "pci"); + if (np) { + mpc52xx_add_bridge(np); + of_node_put(np); + } +#endif + +#ifdef CONFIG_BLK_DEV_INITRD + if (initrd_start) + /* + * We want the proper initrd behavior, i.e., launching of + * /linuxrc from the initial root file system, and not only + * mounting it as the normal root file system. + */ + ROOT_DEV = 0x0; + else +#endif +#ifdef CONFIG_ROOT_NFS + ROOT_DEV = Root_NFS; +#else + ROOT_DEV = Root_HDA1; +#endif + +} + +void tqm5200_show_cpuinfo(struct seq_file *m) +{ + struct device_node* np = of_find_all_nodes(NULL); + const char *model = NULL; + + if (np) + model = of_get_property(np, "model", NULL); + + seq_printf(m, "vendor\t\t: Freescale Semiconductor\n"); + seq_printf(m, "machine\t\t: %s\n", model ? model : "unknown"); + + of_node_put(np); +} + +/* + * Called very early, MMU is off, device-tree isn't unflattened + */ +static int __init tqm5200_probe(void) +{ + unsigned long node = of_get_flat_dt_root(); + const char *model = of_get_flat_dt_prop(node, "model", NULL); + + if (!of_flat_dt_is_compatible(node, "fsl,tqm5200")) + return 0; + pr_debug("%s board found\n", model ? model : "unknown"); + + return 1; +} + +define_machine(tqm5200) { + .name = "tqm5200", + .probe = tqm5200_probe, + .setup_arch = tqm5200_setup_arch, + .init = mpc52xx_declare_of_platform_devices, + .init_IRQ = mpc52xx_init_irq, + .get_irq = mpc52xx_get_irq, + .show_cpuinfo = tqm5200_show_cpuinfo, + .calibrate_decr = generic_calibrate_decr, +}; _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev