diff options
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/Makefile | 3 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/cpm_gpio.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mv64x60.h | 13 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mv64x60_dev.c | 535 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mv64x60_pci.c | 171 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mv64x60_pic.c | 297 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mv64x60_udbg.c | 152 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xics/xics-common.c | 7 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xive/native.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xive/spapr.c | 88 |
10 files changed, 80 insertions, 1189 deletions
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index 9861407d644a..ea2f595b5133 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -28,9 +28,6 @@ obj-$(CONFIG_FSL_85XX_CACHE_SRAM) += fsl_85xx_l2ctlr.o fsl_85xx_cache_sram.o obj-$(CONFIG_SIMPLE_GPIO) += simple_gpio.o obj-$(CONFIG_FSL_RIO) += fsl_rio.o fsl_rmu.o obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o -mv64x60-$(CONFIG_PCI) += mv64x60_pci.o -obj-$(CONFIG_MV64X60) += $(mv64x60-y) mv64x60_pic.o mv64x60_dev.o \ - mv64x60_udbg.o obj-$(CONFIG_RTC_DRV_CMOS) += rtc_cmos_setup.o obj-$(CONFIG_PPC_INDIRECT_PCI) += indirect_pci.o diff --git a/arch/powerpc/sysdev/cpm_gpio.c b/arch/powerpc/sysdev/cpm_gpio.c index 0badc90be666..0695d26bd301 100644 --- a/arch/powerpc/sysdev/cpm_gpio.c +++ b/arch/powerpc/sysdev/cpm_gpio.c @@ -63,7 +63,6 @@ static struct platform_driver cpm_gpio_driver = { .probe = cpm_gpio_probe, .driver = { .name = "cpm-gpio", - .owner = THIS_MODULE, .of_match_table = cpm_gpio_match, }, }; diff --git a/arch/powerpc/sysdev/mv64x60.h b/arch/powerpc/sysdev/mv64x60.h deleted file mode 100644 index 60cfcb90d1fa..000000000000 --- a/arch/powerpc/sysdev/mv64x60.h +++ /dev/null @@ -1,13 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __MV64X60_H__ -#define __MV64X60_H__ - -#include <linux/init.h> - -extern void __init mv64x60_init_irq(void); -extern unsigned int mv64x60_get_irq(void); - -extern void __init mv64x60_pci_init(void); -extern void __init mv64x60_init_early(void); - -#endif /* __MV64X60_H__ */ diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c deleted file mode 100644 index 185a67e742a6..000000000000 --- a/arch/powerpc/sysdev/mv64x60_dev.c +++ /dev/null @@ -1,535 +0,0 @@ -/* - * Platform device setup for Marvell mv64360/mv64460 host bridges (Discovery) - * - * Author: Dale Farnsworth <dale@farnsworth.org> - * - * 2007 (c) MontaVista, Software, 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/stddef.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/console.h> -#include <linux/mv643xx.h> -#include <linux/platform_device.h> -#include <linux/of_platform.h> -#include <linux/of_net.h> -#include <linux/dma-mapping.h> - -#include <asm/prom.h> - -/* These functions provide the necessary setup for the mv64x60 drivers. */ - -static const struct of_device_id of_mv64x60_devices[] __initconst = { - { .compatible = "marvell,mv64306-devctrl", }, - {} -}; - -/* - * Create MPSC platform devices - */ -static int __init mv64x60_mpsc_register_shared_pdev(struct device_node *np) -{ - struct platform_device *pdev; - struct resource r[2]; - struct mpsc_shared_pdata pdata; - const phandle *ph; - struct device_node *mpscrouting, *mpscintr; - int err; - - ph = of_get_property(np, "mpscrouting", NULL); - mpscrouting = of_find_node_by_phandle(*ph); - if (!mpscrouting) - return -ENODEV; - - err = of_address_to_resource(mpscrouting, 0, &r[0]); - of_node_put(mpscrouting); - if (err) - return err; - - ph = of_get_property(np, "mpscintr", NULL); - mpscintr = of_find_node_by_phandle(*ph); - if (!mpscintr) - return -ENODEV; - - err = of_address_to_resource(mpscintr, 0, &r[1]); - of_node_put(mpscintr); - if (err) - return err; - - memset(&pdata, 0, sizeof(pdata)); - - pdev = platform_device_alloc(MPSC_SHARED_NAME, 0); - if (!pdev) - return -ENOMEM; - - err = platform_device_add_resources(pdev, r, 2); - if (err) - goto error; - - err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); - if (err) - goto error; - - err = platform_device_add(pdev); - if (err) - goto error; - - return 0; - -error: - platform_device_put(pdev); - return err; -} - - -static int __init mv64x60_mpsc_device_setup(struct device_node *np, int id) -{ - struct resource r[5]; - struct mpsc_pdata pdata; - struct platform_device *pdev; - const unsigned int *prop; - const phandle *ph; - struct device_node *sdma, *brg; - int err; - int port_number; - - /* only register the shared platform device the first time through */ - if (id == 0 && (err = mv64x60_mpsc_register_shared_pdev(np))) - return err; - - memset(r, 0, sizeof(r)); - - err = of_address_to_resource(np, 0, &r[0]); - if (err) - return err; - - of_irq_to_resource(np, 0, &r[4]); - - ph = of_get_property(np, "sdma", NULL); - sdma = of_find_node_by_phandle(*ph); - if (!sdma) - return -ENODEV; - - of_irq_to_resource(sdma, 0, &r[3]); - err = of_address_to_resource(sdma, 0, &r[1]); - of_node_put(sdma); - if (err) - return err; - - ph = of_get_property(np, "brg", NULL); - brg = of_find_node_by_phandle(*ph); - if (!brg) - return -ENODEV; - - err = of_address_to_resource(brg, 0, &r[2]); - of_node_put(brg); - if (err) - return err; - - prop = of_get_property(np, "cell-index", NULL); - if (!prop) - return -ENODEV; - port_number = *(int *)prop; - - memset(&pdata, 0, sizeof(pdata)); - - pdata.cache_mgmt = 1; /* All current revs need this set */ - - pdata.max_idle = 40; /* default */ - prop = of_get_property(np, "max_idle", NULL); - if (prop) - pdata.max_idle = *prop; - - prop = of_get_property(brg, "current-speed", NULL); - if (prop) - pdata.default_baud = *prop; - - /* Default is 8 bits, no parity, no flow control */ - pdata.default_bits = 8; - pdata.default_parity = 'n'; - pdata.default_flow = 'n'; - - prop = of_get_property(np, "chr_1", NULL); - if (prop) - pdata.chr_1_val = *prop; - - prop = of_get_property(np, "chr_2", NULL); - if (prop) - pdata.chr_2_val = *prop; - - prop = of_get_property(np, "chr_10", NULL); - if (prop) - pdata.chr_10_val = *prop; - - prop = of_get_property(np, "mpcr", NULL); - if (prop) - pdata.mpcr_val = *prop; - - prop = of_get_property(brg, "bcr", NULL); - if (prop) - pdata.bcr_val = *prop; - - pdata.brg_can_tune = 1; /* All current revs need this set */ - - prop = of_get_property(brg, "clock-src", NULL); - if (prop) - pdata.brg_clk_src = *prop; - - prop = of_get_property(brg, "clock-frequency", NULL); - if (prop) - pdata.brg_clk_freq = *prop; - - pdev = platform_device_alloc(MPSC_CTLR_NAME, port_number); - if (!pdev) - return -ENOMEM; - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - - err = platform_device_add_resources(pdev, r, 5); - if (err) - goto error; - - err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); - if (err) - goto error; - - err = platform_device_add(pdev); - if (err) - goto error; - - return 0; - -error: - platform_device_put(pdev); - return err; -} - -/* - * Create mv64x60_eth platform devices - */ -static struct platform_device * __init mv64x60_eth_register_shared_pdev( - struct device_node *np, int id) -{ - struct platform_device *pdev; - struct resource r[2]; - int err; - - err = of_address_to_resource(np, 0, &r[0]); - if (err) - return ERR_PTR(err); - - /* register an orion mdio bus driver */ - r[1].start = r[0].start + 0x4; - r[1].end = r[0].start + 0x84 - 1; - r[1].flags = IORESOURCE_MEM; - - if (id == 0) { - pdev = platform_device_register_simple("orion-mdio", -1, &r[1], 1); - if (IS_ERR(pdev)) - return pdev; - } - - pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, id, - &r[0], 1); - - return pdev; -} - -static int __init mv64x60_eth_device_setup(struct device_node *np, int id, - struct platform_device *shared_pdev) -{ - struct resource r[1]; - struct mv643xx_eth_platform_data pdata; - struct platform_device *pdev; - struct device_node *phy; - const u8 *mac_addr; - const int *prop; - const phandle *ph; - int err; - - memset(r, 0, sizeof(r)); - of_irq_to_resource(np, 0, &r[0]); - - memset(&pdata, 0, sizeof(pdata)); - - pdata.shared = shared_pdev; - - prop = of_get_property(np, "reg", NULL); - if (!prop) - return -ENODEV; - pdata.port_number = *prop; - - mac_addr = of_get_mac_address(np); - if (mac_addr) - memcpy(pdata.mac_addr, mac_addr, 6); - - prop = of_get_property(np, "speed", NULL); - if (prop) - pdata.speed = *prop; - - prop = of_get_property(np, "tx_queue_size", NULL); - if (prop) - pdata.tx_queue_size = *prop; - - prop = of_get_property(np, "rx_queue_size", NULL); - if (prop) - pdata.rx_queue_size = *prop; - - prop = of_get_property(np, "tx_sram_addr", NULL); - if (prop) - pdata.tx_sram_addr = *prop; - - prop = of_get_property(np, "tx_sram_size", NULL); - if (prop) - pdata.tx_sram_size = *prop; - - prop = of_get_property(np, "rx_sram_addr", NULL); - if (prop) - pdata.rx_sram_addr = *prop; - - prop = of_get_property(np, "rx_sram_size", NULL); - if (prop) - pdata.rx_sram_size = *prop; - - ph = of_get_property(np, "phy", NULL); - if (!ph) - return -ENODEV; - - phy = of_find_node_by_phandle(*ph); - if (phy == NULL) - return -ENODEV; - - prop = of_get_property(phy, "reg", NULL); - if (prop) - pdata.phy_addr = MV643XX_ETH_PHY_ADDR(*prop); - - of_node_put(phy); - - pdev = platform_device_alloc(MV643XX_ETH_NAME, id); - if (!pdev) - return -ENOMEM; - - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - err = platform_device_add_resources(pdev, r, 1); - if (err) - goto error; - - err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); - if (err) - goto error; - - err = platform_device_add(pdev); - if (err) - goto error; - - return 0; - -error: - platform_device_put(pdev); - return err; -} - -/* - * Create mv64x60_i2c platform devices - */ -static int __init mv64x60_i2c_device_setup(struct device_node *np, int id) -{ - struct resource r[2]; - struct platform_device *pdev; - struct mv64xxx_i2c_pdata pdata; - const unsigned int *prop; - int err; - - memset(r, 0, sizeof(r)); - - err = of_address_to_resource(np, 0, &r[0]); - if (err) - return err; - - of_irq_to_resource(np, 0, &r[1]); - - memset(&pdata, 0, sizeof(pdata)); - - pdata.freq_m = 8; /* default */ - prop = of_get_property(np, "freq_m", NULL); - if (prop) - pdata.freq_m = *prop; - - pdata.freq_n = 3; /* default */ - prop = of_get_property(np, "freq_n", NULL); - if (prop) - pdata.freq_n = *prop; - - pdata.timeout = 1000; /* default: 1 second */ - - pdev = platform_device_alloc(MV64XXX_I2C_CTLR_NAME, id); - if (!pdev) - return -ENOMEM; - - err = platform_device_add_resources(pdev, r, 2); - if (err) - goto error; - - err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); - if (err) - goto error; - - err = platform_device_add(pdev); - if (err) - goto error; - - return 0; - -error: - platform_device_put(pdev); - return err; -} - -/* - * Create mv64x60_wdt platform devices - */ -static int __init mv64x60_wdt_device_setup(struct device_node *np, int id) -{ - struct resource r; - struct platform_device *pdev; - struct mv64x60_wdt_pdata pdata; - const unsigned int *prop; - int err; - - err = of_address_to_resource(np, 0, &r); - if (err) - return err; - - memset(&pdata, 0, sizeof(pdata)); - - pdata.timeout = 10; /* Default: 10 seconds */ - - np = of_get_parent(np); - if (!np) - return -ENODEV; - - prop = of_get_property(np, "clock-frequency", NULL); - of_node_put(np); - if (!prop) - return -ENODEV; - pdata.bus_clk = *prop / 1000000; /* wdt driver wants freq in MHz */ - - pdev = platform_device_alloc(MV64x60_WDT_NAME, id); - if (!pdev) - return -ENOMEM; - - err = platform_device_add_resources(pdev, &r, 1); - if (err) - goto error; - - err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); - if (err) - goto error; - - err = platform_device_add(pdev); - if (err) - goto error; - - return 0; - -error: - platform_device_put(pdev); - return err; -} - -static int __init mv64x60_device_setup(void) -{ - struct device_node *np, *np2; - struct platform_device *pdev; - int id, id2; - int err; - - id = 0; - for_each_compatible_node(np, NULL, "marvell,mv64360-mpsc") { - err = mv64x60_mpsc_device_setup(np, id++); - if (err) - printk(KERN_ERR "Failed to initialize MV64x60 " - "serial device %pOF: error %d.\n", - np, err); - } - - id = 0; - id2 = 0; - for_each_compatible_node(np, NULL, "marvell,mv64360-eth-group") { - pdev = mv64x60_eth_register_shared_pdev(np, id++); - if (IS_ERR(pdev)) { - err = PTR_ERR(pdev); - printk(KERN_ERR "Failed to initialize MV64x60 " - "network block %pOF: error %d.\n", - np, err); - continue; - } - for_each_child_of_node(np, np2) { - if (!of_device_is_compatible(np2, - "marvell,mv64360-eth")) - continue; - err = mv64x60_eth_device_setup(np2, id2++, pdev); - if (err) - printk(KERN_ERR "Failed to initialize " - "MV64x60 network device %pOF: " - "error %d.\n", - np2, err); - } - } - - id = 0; - for_each_compatible_node(np, "i2c", "marvell,mv64360-i2c") { - err = mv64x60_i2c_device_setup(np, id++); - if (err) - printk(KERN_ERR "Failed to initialize MV64x60 I2C " - "bus %pOF: error %d.\n", - np, err); - } - - /* support up to one watchdog timer */ - np = of_find_compatible_node(np, NULL, "marvell,mv64360-wdt"); - if (np) { - if ((err = mv64x60_wdt_device_setup(np, id))) - printk(KERN_ERR "Failed to initialize MV64x60 " - "Watchdog %pOF: error %d.\n", - np, err); - of_node_put(np); - } - - /* Now add every node that is on the device bus */ - for_each_compatible_node(np, NULL, "marvell,mv64360") - of_platform_bus_probe(np, of_mv64x60_devices, NULL); - - return 0; -} -arch_initcall(mv64x60_device_setup); - -static int __init mv64x60_add_mpsc_console(void) -{ - struct device_node *np = NULL; - const char *prop; - - prop = of_get_property(of_chosen, "linux,stdout-path", NULL); - if (prop == NULL) - goto not_mpsc; - - np = of_find_node_by_path(prop); - if (!np) - goto not_mpsc; - - if (!of_device_is_compatible(np, "marvell,mv64360-mpsc")) - goto not_mpsc; - - prop = of_get_property(np, "cell-index", NULL); - if (!prop) - goto not_mpsc; - - add_preferred_console("ttyMM", *(int *)prop, NULL); - -not_mpsc: - return 0; -} -console_initcall(mv64x60_add_mpsc_console); diff --git a/arch/powerpc/sysdev/mv64x60_pci.c b/arch/powerpc/sysdev/mv64x60_pci.c deleted file mode 100644 index 1afcdb428e51..000000000000 --- a/arch/powerpc/sysdev/mv64x60_pci.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * PCI bus setup for Marvell mv64360/mv64460 host bridges (Discovery) - * - * Author: Dale Farnsworth <dale@farnsworth.org> - * - * 2007 (c) MontaVista, Software, 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/stddef.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/stat.h> -#include <linux/pci.h> - -#include <asm/prom.h> -#include <asm/pci-bridge.h> - -#define PCI_HEADER_TYPE_INVALID 0x7f /* Invalid PCI header type */ - -#ifdef CONFIG_SYSFS -/* 32-bit hex or dec stringified number + '\n' */ -#define MV64X60_VAL_LEN_MAX 11 -#define MV64X60_PCICFG_CPCI_HOTSWAP 0x68 - -static ssize_t mv64x60_hs_reg_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, char *buf, - loff_t off, size_t count) -{ - struct pci_dev *phb; - u32 v; - - if (off > 0) - return 0; - if (count < MV64X60_VAL_LEN_MAX) - return -EINVAL; - - phb = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0)); - if (!phb) - return -ENODEV; - pci_read_config_dword(phb, MV64X60_PCICFG_CPCI_HOTSWAP, &v); - pci_dev_put(phb); - - return sprintf(buf, "0x%08x\n", v); -} - -static ssize_t mv64x60_hs_reg_write(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, char *buf, - loff_t off, size_t count) -{ - struct pci_dev *phb; - u32 v; - - if (off > 0) - return 0; - if (count <= 0) - return -EINVAL; - - if (sscanf(buf, "%i", &v) != 1) - return -EINVAL; - - phb = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0)); - if (!phb) - return -ENODEV; - pci_write_config_dword(phb, MV64X60_PCICFG_CPCI_HOTSWAP, v); - pci_dev_put(phb); - - return count; -} - -static const struct bin_attribute mv64x60_hs_reg_attr = { /* Hotswap register */ - .attr = { - .name = "hs_reg", - .mode = 0644, - }, - .size = MV64X60_VAL_LEN_MAX, - .read = mv64x60_hs_reg_read, - .write = mv64x60_hs_reg_write, -}; - -static int __init mv64x60_sysfs_init(void) -{ - struct device_node *np; - struct platform_device *pdev; - const unsigned int *prop; - - np = of_find_compatible_node(NULL, NULL, "marvell,mv64360"); - if (!np) - return 0; - - prop = of_get_property(np, "hs_reg_valid", NULL); - of_node_put(np); - - pdev = platform_device_register_simple("marvell,mv64360", 0, NULL, 0); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); - - return sysfs_create_bin_file(&pdev->dev.kobj, &mv64x60_hs_reg_attr); -} - -subsys_initcall(mv64x60_sysfs_init); - -#endif /* CONFIG_SYSFS */ - -static void mv64x60_pci_fixup_early(struct pci_dev *dev) -{ - /* - * Set the host bridge hdr_type to an invalid value so that - * pci_setup_device() will ignore the host bridge. - */ - dev->hdr_type = PCI_HEADER_TYPE_INVALID; -} -DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_MARVELL, PCI_DEVICE_ID_MARVELL_MV64360, - mv64x60_pci_fixup_early); -DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_MARVELL, PCI_DEVICE_ID_MARVELL_MV64460, - mv64x60_pci_fixup_early); - -static int __init mv64x60_add_bridge(struct device_node *dev) -{ - int len; - struct pci_controller *hose; - struct resource rsrc; - const int *bus_range; - int primary; - - memset(&rsrc, 0, sizeof(rsrc)); - - /* Fetch host bridge registers address */ - if (of_address_to_resource(dev, 0, &rsrc)) { - printk(KERN_ERR "No PCI reg property in device tree\n"); - return -ENODEV; - } - - /* Get bus range if any */ - bus_range = of_get_property(dev, "bus-range", &len); - if (bus_range == NULL || len < 2 * sizeof(int)) - printk(KERN_WARNING "Can't get bus-range for %pOF, assume" - " bus 0\n", dev); - - hose = pcibios_alloc_controller(dev); - if (!hose) - return -ENOMEM; - - hose->first_busno = bus_range ? bus_range[0] : 0; - hose->last_busno = bus_range ? bus_range[1] : 0xff; - - setup_indirect_pci(hose, rsrc.start, rsrc.start + 4, 0); - hose->self_busno = hose->first_busno; - - printk(KERN_INFO "Found MV64x60 PCI host bridge at 0x%016llx. " - "Firmware bus number: %d->%d\n", - (unsigned long long)rsrc.start, hose->first_busno, - hose->last_busno); - - /* Interpret the "ranges" property */ - /* This also maps the I/O region and sets isa_io/mem_base */ - primary = (hose->first_busno == 0); - pci_process_bridge_OF_ranges(hose, dev, primary); - - return 0; -} - -void __init mv64x60_pci_init(void) -{ - struct device_node *np; - - for_each_compatible_node(np, "pci", "marvell,mv64360-pci") - mv64x60_add_bridge(np); -} diff --git a/arch/powerpc/sysdev/mv64x60_pic.c b/arch/powerpc/sysdev/mv64x60_pic.c deleted file mode 100644 index a79953deb489..000000000000 --- a/arch/powerpc/sysdev/mv64x60_pic.c +++ /dev/null @@ -1,297 +0,0 @@ -/* - * Interrupt handling for Marvell mv64360/mv64460 host bridges (Discovery) - * - * Author: Dale Farnsworth <dale@farnsworth.org> - * - * 2007 (c) MontaVista, Software, 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/stddef.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <linux/spinlock.h> - -#include <asm/byteorder.h> -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/irq.h> - -#include "mv64x60.h" - -/* Interrupt Controller Interface Registers */ -#define MV64X60_IC_MAIN_CAUSE_LO 0x0004 -#define MV64X60_IC_MAIN_CAUSE_HI 0x000c -#define MV64X60_IC_CPU0_INTR_MASK_LO 0x0014 -#define MV64X60_IC_CPU0_INTR_MASK_HI 0x001c -#define MV64X60_IC_CPU0_SELECT_CAUSE 0x0024 - -#define MV64X60_HIGH_GPP_GROUPS 0x0f000000 -#define MV64X60_SELECT_CAUSE_HIGH 0x40000000 - -/* General Purpose Pins Controller Interface Registers */ -#define MV64x60_GPP_INTR_CAUSE 0x0008 -#define MV64x60_GPP_INTR_MASK 0x000c - -#define MV64x60_LEVEL1_LOW 0 -#define MV64x60_LEVEL1_HIGH 1 -#define MV64x60_LEVEL1_GPP 2 - -#define MV64x60_LEVEL1_MASK 0x00000060 -#define MV64x60_LEVEL1_OFFSET 5 - -#define MV64x60_LEVEL2_MASK 0x0000001f - -#define MV64x60_NUM_IRQS 96 - -static DEFINE_SPINLOCK(mv64x60_lock); - -static void __iomem *mv64x60_irq_reg_base; -static void __iomem *mv64x60_gpp_reg_base; - -/* - * Interrupt Controller Handling - * - * The interrupt controller handles three groups of interrupts: - * main low: IRQ0-IRQ31 - * main high: IRQ32-IRQ63 - * gpp: IRQ64-IRQ95 - * - * This code handles interrupts in two levels. Level 1 selects the - * interrupt group, and level 2 selects an IRQ within that group. - * Each group has its own irq_chip structure. - */ - -static u32 mv64x60_cached_low_mask; -static u32 mv64x60_cached_high_mask = MV64X60_HIGH_GPP_GROUPS; -static u32 mv64x60_cached_gpp_mask; - -static struct irq_domain *mv64x60_irq_host; - -/* - * mv64x60_chip_low functions - */ - -static void mv64x60_mask_low(struct irq_data *d) -{ - int level2 = irqd_to_hwirq(d) & MV64x60_LEVEL2_MASK; - unsigned long flags; - - spin_lock_irqsave(&mv64x60_lock, flags); - mv64x60_cached_low_mask &= ~(1 << level2); - out_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_LO, - mv64x60_cached_low_mask); - spin_unlock_irqrestore(&mv64x60_lock, flags); - (void)in_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_LO); -} - -static void mv64x60_unmask_low(struct irq_data *d) -{ - int level2 = irqd_to_hwirq(d) & MV64x60_LEVEL2_MASK; - unsigned long flags; - - spin_lock_irqsave(&mv64x60_lock, flags); - mv64x60_cached_low_mask |= 1 << level2; - out_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_LO, - mv64x60_cached_low_mask); - spin_unlock_irqrestore(&mv64x60_lock, flags); - (void)in_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_LO); -} - -static struct irq_chip mv64x60_chip_low = { - .name = "mv64x60_low", - .irq_mask = mv64x60_mask_low, - .irq_mask_ack = mv64x60_mask_low, - .irq_unmask = mv64x60_unmask_low, -}; - -/* - * mv64x60_chip_high functions - */ - -static void mv64x60_mask_high(struct irq_data *d) -{ - int level2 = irqd_to_hwirq(d) & MV64x60_LEVEL2_MASK; - unsigned long flags; - - spin_lock_irqsave(&mv64x60_lock, flags); - mv64x60_cached_high_mask &= ~(1 << level2); - out_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_HI, - mv64x60_cached_high_mask); - spin_unlock_irqrestore(&mv64x60_lock, flags); - (void)in_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_HI); -} - -static void mv64x60_unmask_high(struct irq_data *d) -{ - int level2 = irqd_to_hwirq(d) & MV64x60_LEVEL2_MASK; - unsigned long flags; - - spin_lock_irqsave(&mv64x60_lock, flags); - mv64x60_cached_high_mask |= 1 << level2; - out_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_HI, - mv64x60_cached_high_mask); - spin_unlock_irqrestore(&mv64x60_lock, flags); - (void)in_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_HI); -} - -static struct irq_chip mv64x60_chip_high = { - .name = "mv64x60_high", - .irq_mask = mv64x60_mask_high, - .irq_mask_ack = mv64x60_mask_high, - .irq_unmask = mv64x60_unmask_high, -}; - -/* - * mv64x60_chip_gpp functions - */ - -static void mv64x60_mask_gpp(struct irq_data *d) -{ - int level2 = irqd_to_hwirq(d) & MV64x60_LEVEL2_MASK; - unsigned long flags; - - spin_lock_irqsave(&mv64x60_lock, flags); - mv64x60_cached_gpp_mask &= ~(1 << level2); - out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_MASK, - mv64x60_cached_gpp_mask); - spin_unlock_irqrestore(&mv64x60_lock, flags); - (void)in_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_MASK); -} - -static void mv64x60_mask_ack_gpp(struct irq_data *d) -{ - int level2 = irqd_to_hwirq(d) & MV64x60_LEVEL2_MASK; - unsigned long flags; - - spin_lock_irqsave(&mv64x60_lock, flags); - mv64x60_cached_gpp_mask &= ~(1 << level2); - out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_MASK, - mv64x60_cached_gpp_mask); - out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_CAUSE, - ~(1 << level2)); - spin_unlock_irqrestore(&mv64x60_lock, flags); - (void)in_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_CAUSE); -} - -static void mv64x60_unmask_gpp(struct irq_data *d) -{ - int level2 = irqd_to_hwirq(d) & MV64x60_LEVEL2_MASK; - unsigned long flags; - - spin_lock_irqsave(&mv64x60_lock, flags); - mv64x60_cached_gpp_mask |= 1 << level2; - out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_MASK, - mv64x60_cached_gpp_mask); - spin_unlock_irqrestore(&mv64x60_lock, flags); - (void)in_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_MASK); -} - -static struct irq_chip mv64x60_chip_gpp = { - .name = "mv64x60_gpp", - .irq_mask = mv64x60_mask_gpp, - .irq_mask_ack = mv64x60_mask_ack_gpp, - .irq_unmask = mv64x60_unmask_gpp, -}; - -/* - * mv64x60_host_ops functions - */ - -static struct irq_chip *mv64x60_chips[] = { - [MV64x60_LEVEL1_LOW] = &mv64x60_chip_low, - [MV64x60_LEVEL1_HIGH] = &mv64x60_chip_high, - [MV64x60_LEVEL1_GPP] = &mv64x60_chip_gpp, -}; - -static int mv64x60_host_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hwirq) -{ - int level1; - - irq_set_status_flags(virq, IRQ_LEVEL); - - level1 = (hwirq & MV64x60_LEVEL1_MASK) >> MV64x60_LEVEL1_OFFSET; - BUG_ON(level1 > MV64x60_LEVEL1_GPP); - irq_set_chip_and_handler(virq, mv64x60_chips[level1], - handle_level_irq); - - return 0; -} - -static const struct irq_domain_ops mv64x60_host_ops = { - .map = mv64x60_host_map, -}; - -/* - * Global functions - */ - -void __init mv64x60_init_irq(void) -{ - struct device_node *np; - phys_addr_t paddr; - unsigned int size; - const unsigned int *reg; - unsigned long flags; - - np = of_find_compatible_node(NULL, NULL, "marvell,mv64360-gpp"); - reg = of_get_property(np, "reg", &size); - paddr = of_translate_address(np, reg); - mv64x60_gpp_reg_base = ioremap(paddr, reg[1]); - of_node_put(np); - - np = of_find_compatible_node(NULL, NULL, "marvell,mv64360-pic"); - reg = of_get_property(np, "reg", &size); - paddr = of_translate_address(np, reg); - mv64x60_irq_reg_base = ioremap(paddr, reg[1]); - - mv64x60_irq_host = irq_domain_add_linear(np, MV64x60_NUM_IRQS, - &mv64x60_host_ops, NULL); - - spin_lock_irqsave(&mv64x60_lock, flags); - out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_MASK, - mv64x60_cached_gpp_mask); - out_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_LO, - mv64x60_cached_low_mask); - out_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_INTR_MASK_HI, - mv64x60_cached_high_mask); - - out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_INTR_CAUSE, 0); - out_le32(mv64x60_irq_reg_base + MV64X60_IC_MAIN_CAUSE_LO, 0); - out_le32(mv64x60_irq_reg_base + MV64X60_IC_MAIN_CAUSE_HI, 0); - spin_unlock_irqrestore(&mv64x60_lock, flags); -} - -unsigned int mv64x60_get_irq(void) -{ - u32 cause; - int level1; - irq_hw_number_t hwirq; - int virq = 0; - - cause = in_le32(mv64x60_irq_reg_base + MV64X60_IC_CPU0_SELECT_CAUSE); - if (cause & MV64X60_SELECT_CAUSE_HIGH) { - cause &= mv64x60_cached_high_mask; - level1 = MV64x60_LEVEL1_HIGH; - if (cause & MV64X60_HIGH_GPP_GROUPS) { - cause = in_le32(mv64x60_gpp_reg_base + - MV64x60_GPP_INTR_CAUSE); - cause &= mv64x60_cached_gpp_mask; - level1 = MV64x60_LEVEL1_GPP; - } - } else { - cause &= mv64x60_cached_low_mask; - level1 = MV64x60_LEVEL1_LOW; - } - if (cause) { - hwirq = (level1 << MV64x60_LEVEL1_OFFSET) | __ilog2(cause); - virq = irq_linear_revmap(mv64x60_irq_host, hwirq); - } - - return virq; -} diff --git a/arch/powerpc/sysdev/mv64x60_udbg.c b/arch/powerpc/sysdev/mv64x60_udbg.c deleted file mode 100644 index 3b8734b870e9..000000000000 --- a/arch/powerpc/sysdev/mv64x60_udbg.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * udbg serial input/output routines for the Marvell MV64x60 (Discovery). - * - * Author: Dale Farnsworth <dale@farnsworth.org> - * - * 2007 (c) MontaVista Software, 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 <asm/io.h> -#include <asm/prom.h> -#include <asm/udbg.h> - -#include <sysdev/mv64x60.h> - -#define MPSC_0_CR1_OFFSET 0x000c - -#define MPSC_0_CR2_OFFSET 0x0010 -#define MPSC_CHR_2_TCS (1 << 9) - -#define MPSC_0_CHR_10_OFFSET 0x0030 - -#define MPSC_INTR_CAUSE_OFF_0 0x0004 -#define MPSC_INTR_CAUSE_OFF_1 0x000c -#define MPSC_INTR_CAUSE_RCC (1<<6) - -static void __iomem *mpsc_base; -static void __iomem *mpsc_intr_cause; - -static void mv64x60_udbg_putc(char c) -{ - if (c == '\n') - mv64x60_udbg_putc('\r'); - - while(in_le32(mpsc_base + MPSC_0_CR2_OFFSET) & MPSC_CHR_2_TCS) - ; - out_le32(mpsc_base + MPSC_0_CR1_OFFSET, c); - out_le32(mpsc_base + MPSC_0_CR2_OFFSET, MPSC_CHR_2_TCS); -} - -static int mv64x60_udbg_testc(void) -{ - return (in_le32(mpsc_intr_cause) & MPSC_INTR_CAUSE_RCC) != 0; -} - -static int mv64x60_udbg_getc(void) -{ - int cause = 0; - int c; - - while (!mv64x60_udbg_testc()) - ; - - c = in_8(mpsc_base + MPSC_0_CHR_10_OFFSET + 2); - out_8(mpsc_base + MPSC_0_CHR_10_OFFSET + 2, c); - out_le32(mpsc_intr_cause, cause & ~MPSC_INTR_CAUSE_RCC); - return c; -} - -static int mv64x60_udbg_getc_poll(void) -{ - if (!mv64x60_udbg_testc()) - return -1; - - return mv64x60_udbg_getc(); -} - -static void mv64x60_udbg_init(void) -{ - struct device_node *np, *mpscintr, *stdout = NULL; - const char *path; - const phandle *ph; - struct resource r[2]; - const int *block_index; - int intr_cause_offset; - int err; - - path = of_get_property(of_chosen, "linux,stdout-path", NULL); - if (!path) - return; - - stdout = of_find_node_by_path(path); - if (!stdout) - return; - - for_each_compatible_node(np, NULL, "marvell,mv64360-mpsc") { - if (np == stdout) - break; - } - - of_node_put(stdout); - if (!np) - return; - - block_index = of_get_property(np, "cell-index", NULL); - if (!block_index) - goto error; - - switch (*block_index) { - case 0: - intr_cause_offset = MPSC_INTR_CAUSE_OFF_0; - break; - case 1: - intr_cause_offset = MPSC_INTR_CAUSE_OFF_1; - break; - default: - goto error; - } - - err = of_address_to_resource(np, 0, &r[0]); - if (err) - goto error; - - ph = of_get_property(np, "mpscintr", NULL); - mpscintr = of_find_node_by_phandle(*ph); - if (!mpscintr) - goto error; - - err = of_address_to_resource(mpscintr, 0, &r[1]); - of_node_put(mpscintr); - if (err) - goto error; - - of_node_put(np); - - mpsc_base = ioremap(r[0].start, resource_size(&r[0])); - if (!mpsc_base) - return; - - mpsc_intr_cause = ioremap(r[1].start, resource_size(&r[1])); - if (!mpsc_intr_cause) { - iounmap(mpsc_base); - return; - } - mpsc_intr_cause += intr_cause_offset; - - udbg_putc = mv64x60_udbg_putc; - udbg_getc = mv64x60_udbg_getc; - udbg_getc_poll = mv64x60_udbg_getc_poll; - - return; - -error: - of_node_put(np); -} - -void mv64x60_init_early(void) -{ - mv64x60_udbg_init(); -} diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c index 77e864d5506d..f87470319d71 100644 --- a/arch/powerpc/sysdev/xics/xics-common.c +++ b/arch/powerpc/sysdev/xics/xics-common.c @@ -446,10 +446,11 @@ static void __init xics_get_server_size(void) np = of_find_compatible_node(NULL, NULL, "ibm,ppc-xics"); if (!np) return; + isize = of_get_property(np, "ibm,interrupt-server#-size", NULL); - if (!isize) - return; - xics_interrupt_server_size = be32_to_cpu(*isize); + if (isize) + xics_interrupt_server_size = be32_to_cpu(*isize); + of_node_put(np); } diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c index b48454be5b98..83bcd72b21cf 100644 --- a/arch/powerpc/sysdev/xive/native.c +++ b/arch/powerpc/sysdev/xive/native.c @@ -341,7 +341,7 @@ static void xive_native_update_pending(struct xive_cpu *xc) * of the hypervisor interrupt (if any) */ cppr = ack & 0xff; - he = GETFIELD(TM_QW3_NSR_HE, (ack >> 8)); + he = (ack >> 8) >> 6; switch(he) { case TM_QW3_NSR_HE_NONE: /* Nothing to see here */ break; diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c index 091f1d0d0af1..575db3b06a6b 100644 --- a/arch/powerpc/sysdev/xive/spapr.c +++ b/arch/powerpc/sysdev/xive/spapr.c @@ -19,6 +19,7 @@ #include <linux/spinlock.h> #include <linux/cpumask.h> #include <linux/mm.h> +#include <linux/delay.h> #include <asm/prom.h> #include <asm/io.h> @@ -108,6 +109,51 @@ static void xive_irq_bitmap_free(int irq) } } + +/* Based on the similar routines in RTAS */ +static unsigned int plpar_busy_delay_time(long rc) +{ + unsigned int ms = 0; + + if (H_IS_LONG_BUSY(rc)) { + ms = get_longbusy_msecs(rc); + } else if (rc == H_BUSY) { + ms = 10; /* seems appropriate for XIVE hcalls */ + } + + return ms; +} + +static unsigned int plpar_busy_delay(int rc) +{ + unsigned int ms; + + ms = plpar_busy_delay_time(rc); + if (ms) + mdelay(ms); + + return ms; +} + +/* + * Note: this call has a partition wide scope and can take a while to + * complete. If it returns H_LONG_BUSY_* it should be retried + * periodically. + */ +static long plpar_int_reset(unsigned long flags) +{ + long rc; + + do { + rc = plpar_hcall_norets(H_INT_RESET, flags); + } while (plpar_busy_delay(rc)); + + if (rc) + pr_err("H_INT_RESET failed %ld\n", rc); + + return rc; +} + static long plpar_int_get_source_info(unsigned long flags, unsigned long lisn, unsigned long *src_flags, @@ -118,7 +164,10 @@ static long plpar_int_get_source_info(unsigned long flags, unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; long rc; - rc = plpar_hcall(H_INT_GET_SOURCE_INFO, retbuf, flags, lisn); + do { + rc = plpar_hcall(H_INT_GET_SOURCE_INFO, retbuf, flags, lisn); + } while (plpar_busy_delay(rc)); + if (rc) { pr_err("H_INT_GET_SOURCE_INFO lisn=%ld failed %ld\n", lisn, rc); return rc; @@ -151,8 +200,11 @@ static long plpar_int_set_source_config(unsigned long flags, flags, lisn, target, prio, sw_irq); - rc = plpar_hcall_norets(H_INT_SET_SOURCE_CONFIG, flags, lisn, - target, prio, sw_irq); + do { + rc = plpar_hcall_norets(H_INT_SET_SOURCE_CONFIG, flags, lisn, + target, prio, sw_irq); + } while (plpar_busy_delay(rc)); + if (rc) { pr_err("H_INT_SET_SOURCE_CONFIG lisn=%ld target=%lx prio=%lx failed %ld\n", lisn, target, prio, rc); @@ -171,7 +223,11 @@ static long plpar_int_get_queue_info(unsigned long flags, unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; long rc; - rc = plpar_hcall(H_INT_GET_QUEUE_INFO, retbuf, flags, target, priority); + do { + rc = plpar_hcall(H_INT_GET_QUEUE_INFO, retbuf, flags, target, + priority); + } while (plpar_busy_delay(rc)); + if (rc) { pr_err("H_INT_GET_QUEUE_INFO cpu=%ld prio=%ld failed %ld\n", target, priority, rc); @@ -200,8 +256,11 @@ static long plpar_int_set_queue_config(unsigned long flags, pr_devel("H_INT_SET_QUEUE_CONFIG flags=%lx target=%lx priority=%lx qpage=%lx qsize=%lx\n", flags, target, priority, qpage, qsize); - rc = plpar_hcall_norets(H_INT_SET_QUEUE_CONFIG, flags, target, - priority, qpage, qsize); + do { + rc = plpar_hcall_norets(H_INT_SET_QUEUE_CONFIG, flags, target, + priority, qpage, qsize); + } while (plpar_busy_delay(rc)); + if (rc) { pr_err("H_INT_SET_QUEUE_CONFIG cpu=%ld prio=%ld qpage=%lx returned %ld\n", target, priority, qpage, rc); @@ -215,7 +274,10 @@ static long plpar_int_sync(unsigned long flags, unsigned long lisn) { long rc; - rc = plpar_hcall_norets(H_INT_SYNC, flags, lisn); + do { + rc = plpar_hcall_norets(H_INT_SYNC, flags, lisn); + } while (plpar_busy_delay(rc)); + if (rc) { pr_err("H_INT_SYNC lisn=%ld returned %ld\n", lisn, rc); return rc; @@ -238,7 +300,11 @@ static long plpar_int_esb(unsigned long flags, pr_devel("H_INT_ESB flags=%lx lisn=%lx offset=%lx in=%lx\n", flags, lisn, offset, in_data); - rc = plpar_hcall(H_INT_ESB, retbuf, flags, lisn, offset, in_data); + do { + rc = plpar_hcall(H_INT_ESB, retbuf, flags, lisn, offset, + in_data); + } while (plpar_busy_delay(rc)); + if (rc) { pr_err("H_INT_ESB lisn=%ld offset=%ld returned %ld\n", lisn, offset, rc); @@ -445,11 +511,7 @@ static void xive_spapr_put_ipi(unsigned int cpu, struct xive_cpu *xc) static void xive_spapr_shutdown(void) { - long rc; - - rc = plpar_hcall_norets(H_INT_RESET, 0); - if (rc) - pr_err("H_INT_RESET failed %ld\n", rc); + plpar_int_reset(0); } /* |