From 6b64253139a20b7db1f701a9117bc5174eb878bc Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 27 Nov 2006 14:16:28 -0700 Subject: [PATCH] [POWERPC] Add lite5200 board support to arch/powerpc Signed-off-by: Grant Likely Acked-by: Sylvain Munaut Signed-off-by: Paul Mackerras --- arch/powerpc/Kconfig | 6 + arch/powerpc/platforms/52xx/Makefile | 3 +- arch/powerpc/platforms/52xx/lite5200.c | 162 +++++++++++++++++++++++++ 3 files changed, 170 insertions(+), 1 deletion(-) create mode 100644 arch/powerpc/platforms/52xx/lite5200.c diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index a6bc221ad1b0..7b63ede083f2 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -423,6 +423,12 @@ config PPC_EFIKA select PPC_NATIVE default y +config PPC_LITE5200 + bool "Freescale Lite5200 Eval Board" + depends on PPC_MULTIPLATFORM && PPC32 + select PPC_MPC52xx + default n + config PPC_PMAC bool "Apple PowerMac based machines" depends on PPC_MULTIPLATFORM diff --git a/arch/powerpc/platforms/52xx/Makefile b/arch/powerpc/platforms/52xx/Makefile index b8f27a864069..a46184a0c750 100644 --- a/arch/powerpc/platforms/52xx/Makefile +++ b/arch/powerpc/platforms/52xx/Makefile @@ -5,4 +5,5 @@ ifeq ($(CONFIG_PPC_MERGE),y) obj-y += mpc52xx_pic.o mpc52xx_common.o endif -obj-$(CONFIG_PPC_EFIKA) += efika-setup.o efika-pci.o +obj-$(CONFIG_PPC_EFIKA) += efika-setup.o efika-pci.o +obj-$(CONFIG_PPC_LITE5200) += lite5200.o diff --git a/arch/powerpc/platforms/52xx/lite5200.c b/arch/powerpc/platforms/52xx/lite5200.c new file mode 100644 index 000000000000..a375c15b4315 --- /dev/null +++ b/arch/powerpc/platforms/52xx/lite5200.c @@ -0,0 +1,162 @@ +/* + * Freescale Lite5200 board support + * + * Written by: Grant Likely + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +/* ************************************************************************ + * + * Setup the architecture + * + */ + +static void __init +lite52xx_setup_cpu(void) +{ + struct mpc52xx_gpio __iomem *gpio; + u32 port_config; + + /* Map zones */ + gpio = mpc52xx_find_and_map("mpc52xx-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 lite52xx_setup_arch(void) +{ + struct device_node *np; + + if (ppc_md.progress) + ppc_md.progress("lite52xx_setup_arch()", 0); + + np = of_find_node_by_type(NULL, "cpu"); + if (np) { + unsigned int *fp = + (int *)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(); /* Generic */ + lite52xx_setup_cpu(); /* Platorm specific */ + +#ifdef CONFIG_BLK_DEV_INITRD + if (initrd_start) + ROOT_DEV = Root_RAM0; + else +#endif +#ifdef CONFIG_ROOT_NFS + ROOT_DEV = Root_NFS; +#else + ROOT_DEV = Root_HDA1; +#endif + +} + +void lite52xx_show_cpuinfo(struct seq_file *m) +{ + struct device_node* np = of_find_all_nodes(NULL); + const char *model = NULL; + + if (np) + model = 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 lite52xx_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, "lite52xx")) + return 0; + pr_debug("%s board w/ mpc52xx found\n", model ? model : "unknown"); + + return 1; +} + +define_machine(lite52xx) { + .name = "lite52xx", + .probe = lite52xx_probe, + .setup_arch = lite52xx_setup_arch, + .init_IRQ = mpc52xx_init_irq, + .get_irq = mpc52xx_get_irq, + .show_cpuinfo = lite52xx_show_cpuinfo, + .calibrate_decr = generic_calibrate_decr, +};