From d93daf848161043c06b665bbbd4bc22ef0247065 Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Tue, 20 Mar 2007 11:19:10 -0500 Subject: [POWERPC] 85xx: Add initial MPC8544 DS platform files. This patch provides the basic MPC8544 DS platform code and config. Follow-up patches will add peripherals such as PCI and SATA. Signed-off-by: Xianghua Xiao Signed-off-by: Roy Zang Signed-off-by: York Sun Signed-off-by: Andy Fleming Signed-off-by: Jon Loeliger Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/Kconfig | 9 +- arch/powerpc/platforms/85xx/Makefile | 1 + arch/powerpc/platforms/85xx/mpc8544_ds.c | 144 +++++++++++++++++++++++++++++++ 3 files changed, 153 insertions(+), 1 deletion(-) create mode 100644 arch/powerpc/platforms/85xx/mpc8544_ds.c (limited to 'arch/powerpc/platforms/85xx') diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index eb661ccf2da..124e2c59597 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -30,6 +30,12 @@ config MPC85xx_MDS help This option enables support for the MPC85xx MDS board +config MPC8544_DS + bool "Freescale MPC8544 DS" + select DEFAULT_UIMAGE + help + This option enables support for the MPC8544 DS board + endchoice config MPC8540 @@ -47,7 +53,8 @@ config MPC85xx bool select PPC_UDBG_16550 select PPC_INDIRECT_PCI - default y if MPC8540_ADS || MPC85xx_CDS || MPC8560_ADS || MPC85xx_MDS + default y if MPC8540_ADS || MPC85xx_CDS || MPC8560_ADS \ + || MPC85xx_MDS || MPC8544_DS config PPC_INDIRECT_PCI_BE bool diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile index 4e63917ada9..4e02cbb14cf 100644 --- a/arch/powerpc/platforms/85xx/Makefile +++ b/arch/powerpc/platforms/85xx/Makefile @@ -5,4 +5,5 @@ obj-$(CONFIG_PPC_85xx) += misc.o pci.o obj-$(CONFIG_MPC8540_ADS) += mpc85xx_ads.o obj-$(CONFIG_MPC8560_ADS) += mpc85xx_ads.o obj-$(CONFIG_MPC85xx_CDS) += mpc85xx_cds.o +obj-$(CONFIG_MPC8544_DS) += mpc8544_ds.o obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o diff --git a/arch/powerpc/platforms/85xx/mpc8544_ds.c b/arch/powerpc/platforms/85xx/mpc8544_ds.c new file mode 100644 index 00000000000..2867f85e632 --- /dev/null +++ b/arch/powerpc/platforms/85xx/mpc8544_ds.c @@ -0,0 +1,144 @@ +/* + * MPC8544 DS Board Setup + * + * Author Xianghua Xiao (x.xiao@freescale.com) + * Copyright 2007 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 "mpc85xx.h" + +#undef DEBUG + +#ifdef DEBUG +#define DBG(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args) +#else +#define DBG(fmt, args...) +#endif + + +void __init mpc8544_ds_pic_init(void) +{ + struct mpic *mpic; + struct resource r; + struct device_node *np = NULL; +#ifdef CONFIG_PPC_I8259 + struct device_node *cascade_node = NULL; + int cascade_irq; +#endif + + np = of_find_node_by_type(np, "open-pic"); + + if (np == NULL) { + printk(KERN_ERR "Could not find open-pic node\n"); + return; + } + + if (of_address_to_resource(np, 0, &r)) { + printk(KERN_ERR "Failed to map mpic register space\n"); + of_node_put(np); + return; + } + + /* Alloc mpic structure and per isu has 16 INT entries. */ + mpic = mpic_alloc(np, r.start, + MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + 16, 64, " OPENPIC "); + BUG_ON(mpic == NULL); + + /* + * 48 Internal Interrupts + */ + mpic_assign_isu(mpic, 0, r.start + 0x10200); + mpic_assign_isu(mpic, 1, r.start + 0x10400); + mpic_assign_isu(mpic, 2, r.start + 0x10600); + + /* + * 16 External interrupts + */ + mpic_assign_isu(mpic, 3, r.start + 0x10000); + + mpic_init(mpic); + +#ifdef CONFIG_PPC_I8259 + /* Initialize the i8259 controller */ + for_each_node_by_type(np, "interrupt-controller") + if (device_is_compatible(np, "chrp,iic")) { + cascade_node = np; + break; + } + + if (cascade_node == NULL) { + printk(KERN_DEBUG "Could not find i8259 PIC\n"); + return; + } + + cascade_irq = irq_of_parse_and_map(cascade_node, 0); + if (cascade_irq == NO_IRQ) { + printk(KERN_ERR "Failed to map cascade interrupt\n"); + return; + } + + DBG("mpc8544ds: cascade mapped to irq %d\n", cascade_irq); + + i8259_init(cascade_node, 0); + of_node_put(cascade_node); + + set_irq_chained_handler(cascade_irq, mpc8544_8259_cascade); +#endif /* CONFIG_PPC_I8259 */ +} + + +/* + * Setup the architecture + */ +static void __init mpc8544_ds_setup_arch(void) +{ + if (ppc_md.progress) + ppc_md.progress("mpc8544_ds_setup_arch()", 0); + + printk("MPC8544 DS board from Freescale Semiconductor\n"); +} + + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init mpc8544_ds_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "MPC8544DS"); +} + +define_machine(mpc8544_ds) { + .name = "MPC8544 DS", + .probe = mpc8544_ds_probe, + .setup_arch = mpc8544_ds_setup_arch, + .init_IRQ = mpc8544_ds_pic_init, + .get_irq = mpic_get_irq, + .restart = mpc85xx_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; -- cgit v1.2.3