diff options
Diffstat (limited to 'arch/powerpc/platforms/44x')
| -rw-r--r-- | arch/powerpc/platforms/44x/Kconfig | 35 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/Makefile | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/sam440ep.c | 79 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/virtex.c | 60 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/warp-nand.c | 57 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/warp.c | 293 |
6 files changed, 462 insertions, 64 deletions
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index 6abe91357eee..249ba01c6674 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -17,6 +17,15 @@ config EBONY help This option enables support for the IBM PPC440GP evaluation board. +config SAM440EP + bool "Sam440ep" + depends on 44x + default n + select 440EP + select PCI + help + This option enables support for the ACube Sam440ep board. + config SEQUOIA bool "Sequoia" depends on 44x @@ -102,6 +111,22 @@ config YOSEMITE # help # This option enables support for the IBM PPC440GX evaluation board. +config XILINX_VIRTEX440_GENERIC_BOARD + bool "Generic Xilinx Virtex 440 board" + depends on 44x + default n + select XILINX_VIRTEX_5_FXT + help + This option enables generic support for Xilinx Virtex based boards + that use a 440 based processor in the Virtex 5 FXT FPGA architecture. + + The generic virtex board support matches any device tree which + specifies 'xlnx,virtex440' in its compatible field. This includes + the Xilinx ML5xx reference designs using the powerpc core. + + Most Virtex 5 designs should use this unless it needs to do some + special configuration at board probe time. + # 44x specific CPU modules, selected based on the board above. config 440EP bool @@ -152,3 +177,13 @@ config 460EX # 44x errata/workaround config symbols, selected by the CPU models above config IBM440EP_ERR42 bool + +# Xilinx specific config options. +config XILINX_VIRTEX + bool + +# Xilinx Virtex 5 FXT FPGA architecture, selected by a Xilinx board above +config XILINX_VIRTEX_5_FXT + bool + select XILINX_VIRTEX + diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile index 774165f9acdd..8d0b1a192d62 100644 --- a/arch/powerpc/platforms/44x/Makefile +++ b/arch/powerpc/platforms/44x/Makefile @@ -3,9 +3,11 @@ obj-$(CONFIG_EBONY) += ebony.o obj-$(CONFIG_TAISHAN) += taishan.o obj-$(CONFIG_BAMBOO) += bamboo.o obj-$(CONFIG_YOSEMITE) += bamboo.o +obj-$(CONFIG_SAM440EP) += sam440ep.o obj-$(CONFIG_SEQUOIA) += sequoia.o obj-$(CONFIG_KATMAI) += katmai.o obj-$(CONFIG_RAINIER) += rainier.o obj-$(CONFIG_WARP) += warp.o obj-$(CONFIG_WARP) += warp-nand.o obj-$(CONFIG_CANYONLANDS) += canyonlands.o +obj-$(CONFIG_XILINX_VIRTEX_5_FXT) += virtex.o diff --git a/arch/powerpc/platforms/44x/sam440ep.c b/arch/powerpc/platforms/44x/sam440ep.c new file mode 100644 index 000000000000..47f10e647735 --- /dev/null +++ b/arch/powerpc/platforms/44x/sam440ep.c @@ -0,0 +1,79 @@ +/* + * Sam440ep board specific routines based off bamboo.c code + * original copyrights below + * + * Wade Farnsworth <wfarnsworth@mvista.com> + * Copyright 2004 MontaVista Software Inc. + * + * Rewritten and ported to the merged powerpc tree: + * Josh Boyer <jwboyer@linux.vnet.ibm.com> + * Copyright 2007 IBM Corporation + * + * Modified from bamboo.c for sam440ep: + * Copyright 2008 Giuseppe Coviello <gicoviello@gmail.com> + * + * 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/init.h> +#include <linux/of_platform.h> + +#include <asm/machdep.h> +#include <asm/prom.h> +#include <asm/udbg.h> +#include <asm/time.h> +#include <asm/uic.h> +#include <asm/pci-bridge.h> +#include <asm/ppc4xx.h> +#include <linux/i2c.h> + +static __initdata struct of_device_id sam440ep_of_bus[] = { + { .compatible = "ibm,plb4", }, + { .compatible = "ibm,opb", }, + { .compatible = "ibm,ebc", }, + {}, +}; + +static int __init sam440ep_device_probe(void) +{ + of_platform_bus_probe(NULL, sam440ep_of_bus, NULL); + + return 0; +} +machine_device_initcall(sam440ep, sam440ep_device_probe); + +static int __init sam440ep_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (!of_flat_dt_is_compatible(root, "acube,sam440ep")) + return 0; + + ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; + + return 1; +} + +define_machine(sam440ep) { + .name = "Sam440ep", + .probe = sam440ep_probe, + .progress = udbg_progress, + .init_IRQ = uic_init_tree, + .get_irq = uic_get_irq, + .restart = ppc4xx_reset_system, + .calibrate_decr = generic_calibrate_decr, +}; + +static struct i2c_board_info sam440ep_rtc_info = { + .type = "m41st85", + .addr = 0x68, + .irq = -1, +}; + +static int sam440ep_setup_rtc(void) +{ + return i2c_register_board_info(0, &sam440ep_rtc_info, 1); +} +machine_device_initcall(sam440ep, sam440ep_setup_rtc); diff --git a/arch/powerpc/platforms/44x/virtex.c b/arch/powerpc/platforms/44x/virtex.c new file mode 100644 index 000000000000..68637faf70ae --- /dev/null +++ b/arch/powerpc/platforms/44x/virtex.c @@ -0,0 +1,60 @@ +/* + * Xilinx Virtex 5FXT based board support, derived from + * the Xilinx Virtex (IIpro & 4FX) based board support + * + * Copyright 2007 Secret Lab Technologies Ltd. + * Copyright 2008 Xilinx, Inc. + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <linux/init.h> +#include <linux/of_platform.h> +#include <asm/machdep.h> +#include <asm/prom.h> +#include <asm/time.h> +#include <asm/xilinx_intc.h> +#include <asm/reg.h> +#include <asm/ppc4xx.h> +#include "44x.h" + +static struct of_device_id xilinx_of_bus_ids[] __initdata = { + { .compatible = "simple-bus", }, + { .compatible = "xlnx,plb-v46-1.00.a", }, + { .compatible = "xlnx,plb-v46-1.02.a", }, + { .compatible = "xlnx,plb-v34-1.01.a", }, + { .compatible = "xlnx,plb-v34-1.02.a", }, + { .compatible = "xlnx,opb-v20-1.10.c", }, + { .compatible = "xlnx,dcr-v29-1.00.a", }, + { .compatible = "xlnx,compound", }, + {} +}; + +static int __init virtex_device_probe(void) +{ + of_platform_bus_probe(NULL, xilinx_of_bus_ids, NULL); + + return 0; +} +machine_device_initcall(virtex, virtex_device_probe); + +static int __init virtex_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (!of_flat_dt_is_compatible(root, "xlnx,virtex440")) + return 0; + + return 1; +} + +define_machine(virtex) { + .name = "Xilinx Virtex440", + .probe = virtex_probe, + .init_IRQ = xilinx_intc_init_tree, + .get_irq = xilinx_intc_get_irq, + .calibrate_decr = generic_calibrate_decr, + .restart = ppc4xx_reset_system, +}; diff --git a/arch/powerpc/platforms/44x/warp-nand.c b/arch/powerpc/platforms/44x/warp-nand.c index 9150318cfc56..e55746b824b4 100644 --- a/arch/powerpc/platforms/44x/warp-nand.c +++ b/arch/powerpc/platforms/44x/warp-nand.c @@ -11,8 +11,10 @@ #include <linux/mtd/partitions.h> #include <linux/mtd/nand.h> #include <linux/mtd/ndfc.h> +#include <linux/of.h> #include <asm/machdep.h> + #ifdef CONFIG_MTD_NAND_NDFC #define CS_NAND_0 1 /* use chip select 1 for NAND device 0 */ @@ -35,13 +37,23 @@ static struct mtd_partition nand_parts[] = { { .name = "root", .offset = 0x0200000, - .size = 0x3400000 + .size = 0x3E00000 + }, + { + .name = "persistent", + .offset = 0x4000000, + .size = 0x4000000 }, { - .name = "user", - .offset = 0x3600000, - .size = 0x0A00000 + .name = "persistent1", + .offset = 0x8000000, + .size = 0x4000000 }, + { + .name = "persistent2", + .offset = 0xC000000, + .size = 0x4000000 + } }; struct ndfc_controller_settings warp_ndfc_settings = { @@ -67,27 +79,22 @@ static struct platform_device warp_ndfc_device = { .resource = &warp_ndfc, }; -static struct nand_ecclayout nand_oob_16 = { - .eccbytes = 3, - .eccpos = { 0, 1, 2, 3, 6, 7 }, - .oobfree = { {.offset = 8, .length = 16} } -}; - +/* Do NOT set the ecclayout: let it default so it is correct for both + * 64M and 256M flash chips. + */ static struct platform_nand_chip warp_nand_chip0 = { .nr_chips = 1, .chip_offset = CS_NAND_0, .nr_partitions = ARRAY_SIZE(nand_parts), .partitions = nand_parts, - .chip_delay = 50, - .ecclayout = &nand_oob_16, + .chip_delay = 20, .priv = &warp_chip0_settings, }; static struct platform_device warp_nand_device = { .name = "ndfc-chip", .id = 0, - .num_resources = 1, - .resource = &warp_ndfc, + .num_resources = 0, .dev = { .platform_data = &warp_nand_chip0, .parent = &warp_ndfc_device.dev, @@ -96,6 +103,28 @@ static struct platform_device warp_nand_device = { static int warp_setup_nand_flash(void) { + struct device_node *np; + + /* Try to detect a rev A based on NOR size. */ + np = of_find_compatible_node(NULL, NULL, "cfi-flash"); + if (np) { + struct property *pp; + + pp = of_find_property(np, "reg", NULL); + if (pp && (pp->length == 12)) { + u32 *v = pp->value; + if (v[2] == 0x4000000) { + /* Rev A = 64M NAND */ + warp_nand_chip0.nr_partitions = 3; + + nand_parts[1].size = 0x3000000; + nand_parts[2].offset = 0x3200000; + nand_parts[2].size = 0x0e00000; + } + } + of_node_put(np); + } + platform_device_register(&warp_ndfc_device); platform_device_register(&warp_nand_device); diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c index 39cf6150a72b..9565995cba7f 100644 --- a/arch/powerpc/platforms/44x/warp.c +++ b/arch/powerpc/platforms/44x/warp.c @@ -12,6 +12,9 @@ #include <linux/init.h> #include <linux/of_platform.h> #include <linux/kthread.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/delay.h> #include <asm/machdep.h> #include <asm/prom.h> @@ -27,6 +30,18 @@ static __initdata struct of_device_id warp_of_bus[] = { {}, }; +static __initdata struct i2c_board_info warp_i2c_info[] = { + { I2C_BOARD_INFO("ad7414", 0x4a) } +}; + +static int __init warp_arch_init(void) +{ + /* This should go away once support is moved to the dts. */ + i2c_register_board_info(0, warp_i2c_info, ARRAY_SIZE(warp_i2c_info)); + return 0; +} +machine_arch_initcall(warp, warp_arch_init); + static int __init warp_device_probe(void) { of_platform_bus_probe(NULL, warp_of_bus, NULL); @@ -52,61 +67,232 @@ define_machine(warp) { }; -#define LED_GREEN (0x80000000 >> 0) -#define LED_RED (0x80000000 >> 1) +/* I am not sure this is the best place for this... */ +static int __init warp_post_info(void) +{ + struct device_node *np; + void __iomem *fpga; + u32 post1, post2; + + /* Sighhhh... POST information is in the sd area. */ + np = of_find_compatible_node(NULL, NULL, "pika,fpga-sd"); + if (np == NULL) + return -ENOENT; + + fpga = of_iomap(np, 0); + of_node_put(np); + if (fpga == NULL) + return -ENOENT; + + post1 = in_be32(fpga + 0x40); + post2 = in_be32(fpga + 0x44); + + iounmap(fpga); + + if (post1 || post2) + printk(KERN_INFO "Warp POST %08x %08x\n", post1, post2); + else + printk(KERN_INFO "Warp POST OK\n"); + + return 0; +} +machine_late_initcall(warp, warp_post_info); + + +#ifdef CONFIG_SENSORS_AD7414 + +static LIST_HEAD(dtm_shutdown_list); +static void __iomem *dtm_fpga; +static void __iomem *gpio_base; + + +struct dtm_shutdown { + struct list_head list; + void (*func)(void *arg); + void *arg; +}; -/* This is for the power LEDs 1 = on, 0 = off, -1 = leave alone */ -void warp_set_power_leds(int green, int red) +int pika_dtm_register_shutdown(void (*func)(void *arg), void *arg) { - static void __iomem *gpio_base = NULL; - unsigned leds; - - if (gpio_base == NULL) { - struct device_node *np; - - /* Power LEDS are on the second GPIO controller */ - np = of_find_compatible_node(NULL, NULL, "ibm,gpio-440EP"); - if (np) - np = of_find_compatible_node(np, NULL, "ibm,gpio-440EP"); - if (np == NULL) { - printk(KERN_ERR __FILE__ ": Unable to find gpio\n"); - return; + struct dtm_shutdown *shutdown; + + shutdown = kmalloc(sizeof(struct dtm_shutdown), GFP_KERNEL); + if (shutdown == NULL) + return -ENOMEM; + + shutdown->func = func; + shutdown->arg = arg; + + list_add(&shutdown->list, &dtm_shutdown_list); + + return 0; +} + +int pika_dtm_unregister_shutdown(void (*func)(void *arg), void *arg) +{ + struct dtm_shutdown *shutdown; + + list_for_each_entry(shutdown, &dtm_shutdown_list, list) + if (shutdown->func == func && shutdown->arg == arg) { + list_del(&shutdown->list); + kfree(shutdown); + return 0; + } + + return -EINVAL; +} + +static irqreturn_t temp_isr(int irq, void *context) +{ + struct dtm_shutdown *shutdown; + + local_irq_disable(); + + /* Run through the shutdown list. */ + list_for_each_entry(shutdown, &dtm_shutdown_list, list) + shutdown->func(shutdown->arg); + + printk(KERN_EMERG "\n\nCritical Temperature Shutdown\n"); + + while (1) { + if (dtm_fpga) { + unsigned reset = in_be32(dtm_fpga + 0x14); + out_be32(dtm_fpga + 0x14, reset); } - gpio_base = of_iomap(np, 0); - of_node_put(np); - if (gpio_base == NULL) { - printk(KERN_ERR __FILE__ ": Unable to map gpio"); - return; + if (gpio_base) { + unsigned leds = in_be32(gpio_base); + + /* green off, red toggle */ + leds &= ~0x80000000; + leds ^= 0x40000000; + + out_be32(gpio_base, leds); } + + mdelay(500); + } +} + +static int pika_setup_leds(void) +{ + struct device_node *np; + const u32 *gpios; + int len; + + np = of_find_compatible_node(NULL, NULL, "linux,gpio-led"); + if (!np) { + printk(KERN_ERR __FILE__ ": Unable to find gpio-led\n"); + return -ENOENT; } - leds = in_be32(gpio_base); + gpios = of_get_property(np, "gpios", &len); + of_node_put(np); + if (!gpios || len < 4) { + printk(KERN_ERR __FILE__ + ": Unable to get gpios property (%d)\n", len); + return -ENOENT; + } - switch (green) { - case 0: leds &= ~LED_GREEN; break; - case 1: leds |= LED_GREEN; break; + np = of_find_node_by_phandle(gpios[0]); + if (!np) { + printk(KERN_ERR __FILE__ ": Unable to find gpio\n"); + return -ENOENT; } - switch (red) { - case 0: leds &= ~LED_RED; break; - case 1: leds |= LED_RED; break; + + gpio_base = of_iomap(np, 0); + of_node_put(np); + if (!gpio_base) { + printk(KERN_ERR __FILE__ ": Unable to map gpio"); + return -ENOMEM; } - out_be32(gpio_base, leds); + return 0; } -EXPORT_SYMBOL(warp_set_power_leds); +static void pika_setup_critical_temp(struct i2c_client *client) +{ + struct device_node *np; + int irq, rc; + + /* Do this before enabling critical temp interrupt since we + * may immediately interrupt. + */ + pika_setup_leds(); + + /* These registers are in 1 degree increments. */ + i2c_smbus_write_byte_data(client, 2, 65); /* Thigh */ + i2c_smbus_write_byte_data(client, 3, 55); /* Tlow */ + + np = of_find_compatible_node(NULL, NULL, "adi,ad7414"); + if (np == NULL) { + printk(KERN_ERR __FILE__ ": Unable to find ad7414\n"); + return; + } + + irq = irq_of_parse_and_map(np, 0); + of_node_put(np); + if (irq == NO_IRQ) { + printk(KERN_ERR __FILE__ ": Unable to get ad7414 irq\n"); + return; + } + + rc = request_irq(irq, temp_isr, 0, "ad7414", NULL); + if (rc) { + printk(KERN_ERR __FILE__ + ": Unable to request ad7414 irq %d = %d\n", irq, rc); + return; + } +} + +static inline void pika_dtm_check_fan(void __iomem *fpga) +{ + static int fan_state; + u32 fan = in_be32(fpga + 0x34) & (1 << 14); + + if (fan_state != fan) { + fan_state = fan; + if (fan) + printk(KERN_WARNING "Fan rotation error detected." + " Please check hardware.\n"); + } +} -#ifdef CONFIG_SENSORS_AD7414 static int pika_dtm_thread(void __iomem *fpga) { - extern int ad7414_get_temp(int index); + struct i2c_adapter *adap; + struct i2c_client *client; + + /* We loop in case either driver was compiled as a module and + * has not been insmoded yet. + */ + while (!(adap = i2c_get_adapter(0))) { + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ); + } + + while (1) { + list_for_each_entry(client, &adap->clients, list) + if (client->addr == 0x4a) + goto found_it; + + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ); + } + +found_it: + i2c_put_adapter(adap); + + pika_setup_critical_temp(client); + + printk(KERN_INFO "PIKA DTM thread running.\n"); while (!kthread_should_stop()) { - int temp = ad7414_get_temp(0); + u16 temp = swab16(i2c_smbus_read_word_data(client, 0)); + out_be32(fpga + 0x20, temp); - out_be32(fpga, temp); + pika_dtm_check_fan(fpga); set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(HZ); @@ -115,37 +301,44 @@ static int pika_dtm_thread(void __iomem *fpga) return 0; } + static int __init pika_dtm_start(void) { struct task_struct *dtm_thread; struct device_node *np; - struct resource res; - void __iomem *fpga; np = of_find_compatible_node(NULL, NULL, "pika,fpga"); if (np == NULL) return -ENOENT; - /* We do not call of_iomap here since it would map in the entire - * fpga space, which is over 8k. - */ - if (of_address_to_resource(np, 0, &res)) { - of_node_put(np); - return -ENOENT; - } + dtm_fpga = of_iomap(np, 0); of_node_put(np); - - fpga = ioremap(res.start, 0x24); - if (fpga == NULL) + if (dtm_fpga == NULL) return -ENOENT; - dtm_thread = kthread_run(pika_dtm_thread, fpga + 0x20, "pika-dtm"); + dtm_thread = kthread_run(pika_dtm_thread, dtm_fpga, "pika-dtm"); if (IS_ERR(dtm_thread)) { - iounmap(fpga); + iounmap(dtm_fpga); return PTR_ERR(dtm_thread); } return 0; } -device_initcall(pika_dtm_start); +machine_late_initcall(warp, pika_dtm_start); + +#else /* !CONFIG_SENSORS_AD7414 */ + +int pika_dtm_register_shutdown(void (*func)(void *arg), void *arg) +{ + return 0; +} + +int pika_dtm_unregister_shutdown(void (*func)(void *arg), void *arg) +{ + return 0; +} + #endif + +EXPORT_SYMBOL(pika_dtm_register_shutdown); +EXPORT_SYMBOL(pika_dtm_unregister_shutdown); |