[POWERPC] 4xx: PIKA Warp base platform
Add the base platform support for the PIKA Warp boards. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
This commit is contained in:
Sean MacLennan
Josh Boyer
parent
3f8fc3e0c7
commit
f9bdedb2c5
5 changed files with 275 additions and 1 deletions
arch/powerpc
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@ -480,7 +480,7 @@ config MCA
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config PCI
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bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
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|| PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
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|| PPC_PS3
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|| PPC_PS3 || 44x
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default y if !40x && !CPM2 && !8xx && !PPC_83xx \
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&& !PPC_85xx && !PPC_86xx
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default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
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@ -54,6 +54,19 @@ config RAINIER
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help
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This option enables support for the AMCC PPC440GRX evaluation board.
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config WARP
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bool "PIKA Warp"
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depends on 44x
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default n
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select 440EP
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help
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This option enables support for the PIKA Warp(tm) Appliance. The Warp
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is a small computer replacement with up to 9 ports of FXO/FXS plus VOIP
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stations and trunks.
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See http://www.pikatechnologies.com/ and follow the "PIKA for Computer
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Telephony Developers" link for more information.
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#config LUAN
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# bool "Luan"
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# depends on 44x
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@ -76,6 +89,7 @@ config 440EP
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select PPC_FPU
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select IBM440EP_ERR42
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select IBM_NEW_EMAC_ZMII
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select USB_ARCH_HAS_OHCI
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config 440EPX
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bool
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@ -5,3 +5,5 @@ obj-$(CONFIG_BAMBOO) += bamboo.o
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obj-$(CONFIG_SEQUOIA) += sequoia.o
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obj-$(CONFIG_KATMAI) += katmai.o
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obj-$(CONFIG_RAINIER) += rainier.o
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obj-$(CONFIG_WARP) += warp.o
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obj-$(CONFIG_WARP) += warp-nand.o
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105
arch/powerpc/platforms/44x/warp-nand.c
Normal file
105
arch/powerpc/platforms/44x/warp-nand.c
Normal file
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@ -0,0 +1,105 @@
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/*
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* PIKA Warp(tm) NAND flash specific routines
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*
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* Copyright (c) 2008 PIKA Technologies
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* Sean MacLennan <smaclennan@pikatech.com>
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*/
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/ndfc.h>
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#ifdef CONFIG_MTD_NAND_NDFC
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#define CS_NAND_0 1 /* use chip select 1 for NAND device 0 */
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#define WARP_NAND_FLASH_REG_ADDR 0xD0000000UL
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#define WARP_NAND_FLASH_REG_SIZE 0x2000
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static struct resource warp_ndfc = {
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.start = WARP_NAND_FLASH_REG_ADDR,
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.end = WARP_NAND_FLASH_REG_ADDR + WARP_NAND_FLASH_REG_SIZE,
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.flags = IORESOURCE_MEM,
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};
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static struct mtd_partition nand_parts[] = {
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{
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.name = "kernel",
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.offset = 0,
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.size = 0x0200000
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},
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{
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.name = "root",
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.offset = 0x0200000,
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.size = 0x3400000
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},
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{
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.name = "user",
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.offset = 0x3600000,
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.size = 0x0A00000
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},
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};
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struct ndfc_controller_settings warp_ndfc_settings = {
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.ccr_settings = (NDFC_CCR_BS(CS_NAND_0) | NDFC_CCR_ARAC1),
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.ndfc_erpn = 0,
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};
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static struct ndfc_chip_settings warp_chip0_settings = {
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.bank_settings = 0x80002222,
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};
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struct platform_nand_ctrl warp_nand_ctrl = {
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.priv = &warp_ndfc_settings,
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};
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static struct platform_device warp_ndfc_device = {
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.name = "ndfc-nand",
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.id = 0,
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.dev = {
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.platform_data = &warp_nand_ctrl,
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},
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.num_resources = 1,
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.resource = &warp_ndfc,
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};
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static struct nand_ecclayout nand_oob_16 = {
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.eccbytes = 3,
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.eccpos = { 0, 1, 2, 3, 6, 7 },
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.oobfree = { {.offset = 8, .length = 16} }
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};
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static struct platform_nand_chip warp_nand_chip0 = {
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.nr_chips = 1,
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.chip_offset = CS_NAND_0,
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.nr_partitions = ARRAY_SIZE(nand_parts),
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.partitions = nand_parts,
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.chip_delay = 50,
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.ecclayout = &nand_oob_16,
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.priv = &warp_chip0_settings,
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};
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static struct platform_device warp_nand_device = {
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.name = "ndfc-chip",
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.id = 0,
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.num_resources = 1,
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.resource = &warp_ndfc,
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.dev = {
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.platform_data = &warp_nand_chip0,
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.parent = &warp_ndfc_device.dev,
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}
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};
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static int warp_setup_nand_flash(void)
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{
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platform_device_register(&warp_ndfc_device);
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platform_device_register(&warp_nand_device);
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return 0;
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}
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device_initcall(warp_setup_nand_flash);
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#endif
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153
arch/powerpc/platforms/44x/warp.c
Normal file
153
arch/powerpc/platforms/44x/warp.c
Normal file
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@ -0,0 +1,153 @@
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/*
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* PIKA Warp(tm) board specific routines
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*
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* Copyright (c) 2008 PIKA Technologies
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* Sean MacLennan <smaclennan@pikatech.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/init.h>
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#include <linux/of_platform.h>
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#include <linux/kthread.h>
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#include <asm/machdep.h>
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#include <asm/prom.h>
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#include <asm/udbg.h>
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#include <asm/time.h>
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#include <asm/uic.h>
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#include "44x.h"
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static __initdata struct of_device_id warp_of_bus[] = {
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{ .compatible = "ibm,plb4", },
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{ .compatible = "ibm,opb", },
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{ .compatible = "ibm,ebc", },
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{},
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};
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static int __init warp_device_probe(void)
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{
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of_platform_bus_probe(NULL, warp_of_bus, NULL);
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return 0;
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}
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machine_device_initcall(warp, warp_device_probe);
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static int __init warp_probe(void)
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{
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unsigned long root = of_get_flat_dt_root();
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return of_flat_dt_is_compatible(root, "pika,warp");
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}
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define_machine(warp) {
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.name = "Warp",
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.probe = warp_probe,
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.progress = udbg_progress,
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.init_IRQ = uic_init_tree,
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.get_irq = uic_get_irq,
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.restart = ppc44x_reset_system,
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.calibrate_decr = generic_calibrate_decr,
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};
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#define LED_GREEN (0x80000000 >> 0)
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#define LED_RED (0x80000000 >> 1)
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/* This is for the power LEDs 1 = on, 0 = off, -1 = leave alone */
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void warp_set_power_leds(int green, int red)
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{
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static void __iomem *gpio_base = NULL;
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unsigned leds;
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if (gpio_base == NULL) {
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struct device_node *np;
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/* Power LEDS are on the second GPIO controller */
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np = of_find_compatible_node(NULL, NULL, "ibm,gpio-440EP");
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if (np)
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np = of_find_compatible_node(np, NULL, "ibm,gpio-440EP");
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if (np == NULL) {
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printk(KERN_ERR __FILE__ ": Unable to find gpio\n");
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return;
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}
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gpio_base = of_iomap(np, 0);
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of_node_put(np);
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if (gpio_base == NULL) {
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printk(KERN_ERR __FILE__ ": Unable to map gpio");
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return;
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}
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}
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leds = in_be32(gpio_base);
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switch (green) {
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case 0: leds &= ~LED_GREEN; break;
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case 1: leds |= LED_GREEN; break;
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}
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switch (red) {
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case 0: leds &= ~LED_RED; break;
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case 1: leds |= LED_RED; break;
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}
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out_be32(gpio_base, leds);
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}
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EXPORT_SYMBOL(warp_set_power_leds);
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#ifdef CONFIG_SENSORS_AD7414
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static int pika_dtm_thread(void __iomem *fpga)
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{
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extern int ad7414_get_temp(int index);
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while (!kthread_should_stop()) {
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int temp = ad7414_get_temp(0);
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out_be32(fpga, temp);
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(HZ);
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}
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return 0;
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}
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static int __init pika_dtm_start(void)
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{
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struct task_struct *dtm_thread;
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struct device_node *np;
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struct resource res;
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void __iomem *fpga;
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np = of_find_compatible_node(NULL, NULL, "pika,fpga");
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if (np == NULL)
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return -ENOENT;
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/* We do not call of_iomap here since it would map in the entire
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* fpga space, which is over 8k.
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*/
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if (of_address_to_resource(np, 0, &res)) {
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of_node_put(np);
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return -ENOENT;
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}
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of_node_put(np);
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fpga = ioremap(res.start + 0x20, 4);
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if (fpga == NULL)
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return -ENOENT;
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dtm_thread = kthread_run(pika_dtm_thread, fpga + 0x20, "pika-dtm");
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if (IS_ERR(dtm_thread)) {
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iounmap(fpga);
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return PTR_ERR(dtm_thread);
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}
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return 0;
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}
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device_initcall(pika_dtm_start);
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#endif
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