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-rw-r--r--drivers/i2c/busses/i2c-ocores.c14
-rw-r--r--drivers/i2c/i2c-core.c2
-rw-r--r--drivers/mmc/host/mmc_spi.c4
-rw-r--r--drivers/net/ethoc.c8
-rw-r--r--drivers/of/Kconfig6
-rw-r--r--drivers/of/Makefile1
-rw-r--r--drivers/of/of_pci.c92
-rw-r--r--drivers/rtc/rtc-cmos.c45
-rw-r--r--drivers/rtc/rtc-mrst.c13
-rw-r--r--drivers/spi/pxa2xx_spi.c2
-rw-r--r--drivers/spi/pxa2xx_spi_pci.c2
-rw-r--r--drivers/spi/xilinx_spi.c6
12 files changed, 160 insertions, 35 deletions
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index 61653f07967..1b46a9d9f90 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -330,9 +330,7 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev)
i2c->adap = ocores_adapter;
i2c_set_adapdata(&i2c->adap, i2c);
i2c->adap.dev.parent = &pdev->dev;
-#ifdef CONFIG_OF
i2c->adap.dev.of_node = pdev->dev.of_node;
-#endif
/* add i2c adapter to i2c tree */
ret = i2c_add_adapter(&i2c->adap);
@@ -390,15 +388,11 @@ static int ocores_i2c_resume(struct platform_device *pdev)
#define ocores_i2c_resume NULL
#endif
-#ifdef CONFIG_OF
static struct of_device_id ocores_i2c_match[] = {
- {
- .compatible = "opencores,i2c-ocores",
- },
- {},
+ { .compatible = "opencores,i2c-ocores", },
+ {},
};
MODULE_DEVICE_TABLE(of, ocores_i2c_match);
-#endif
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:ocores-i2c");
@@ -411,9 +405,7 @@ static struct platform_driver ocores_i2c_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "ocores-i2c",
-#ifdef CONFIG_OF
- .of_match_table = ocores_i2c_match,
-#endif
+ .of_match_table = ocores_i2c_match,
},
};
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index f0bd5bcdf56..045ba6efea4 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -537,9 +537,7 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
client->dev.parent = &client->adapter->dev;
client->dev.bus = &i2c_bus_type;
client->dev.type = &i2c_client_type;
-#ifdef CONFIG_OF
client->dev.of_node = info->of_node;
-#endif
dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap),
client->addr);
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index fd877f633dd..2f7fc0c5146 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1516,21 +1516,17 @@ static int __devexit mmc_spi_remove(struct spi_device *spi)
return 0;
}
-#if defined(CONFIG_OF)
static struct of_device_id mmc_spi_of_match_table[] __devinitdata = {
{ .compatible = "mmc-spi-slot", },
{},
};
-#endif
static struct spi_driver mmc_spi_driver = {
.driver = {
.name = "mmc_spi",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
-#if defined(CONFIG_OF)
.of_match_table = mmc_spi_of_match_table,
-#endif
},
.probe = mmc_spi_probe,
.remove = __devexit_p(mmc_spi_remove),
diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c
index b79d7e1555d..db0290f05bd 100644
--- a/drivers/net/ethoc.c
+++ b/drivers/net/ethoc.c
@@ -1163,15 +1163,11 @@ static int ethoc_resume(struct platform_device *pdev)
# define ethoc_resume NULL
#endif
-#ifdef CONFIG_OF
static struct of_device_id ethoc_match[] = {
- {
- .compatible = "opencores,ethoc",
- },
+ { .compatible = "opencores,ethoc", },
{},
};
MODULE_DEVICE_TABLE(of, ethoc_match);
-#endif
static struct platform_driver ethoc_driver = {
.probe = ethoc_probe,
@@ -1181,9 +1177,7 @@ static struct platform_driver ethoc_driver = {
.driver = {
.name = "ethoc",
.owner = THIS_MODULE,
-#ifdef CONFIG_OF
.of_match_table = ethoc_match,
-#endif
},
};
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 3c6e100a3ad..d06a6374ed6 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -69,4 +69,10 @@ config OF_MDIO
help
OpenFirmware MDIO bus (Ethernet PHY) accessors
+config OF_PCI
+ def_tristate PCI
+ depends on PCI && (PPC || MICROBLAZE || X86)
+ help
+ OpenFirmware PCI bus accessors
+
endmenu # OF
diff --git a/drivers/of/Makefile b/drivers/of/Makefile
index 3ab21a0a490..f7861ed2f28 100644
--- a/drivers/of/Makefile
+++ b/drivers/of/Makefile
@@ -9,3 +9,4 @@ obj-$(CONFIG_OF_I2C) += of_i2c.o
obj-$(CONFIG_OF_NET) += of_net.o
obj-$(CONFIG_OF_SPI) += of_spi.o
obj-$(CONFIG_OF_MDIO) += of_mdio.o
+obj-$(CONFIG_OF_PCI) += of_pci.o
diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c
new file mode 100644
index 00000000000..ac1ec54e4fd
--- /dev/null
+++ b/drivers/of/of_pci.c
@@ -0,0 +1,92 @@
+#include <linux/kernel.h>
+#include <linux/of_pci.h>
+#include <linux/of_irq.h>
+#include <asm/prom.h>
+
+/**
+ * of_irq_map_pci - Resolve the interrupt for a PCI device
+ * @pdev: the device whose interrupt is to be resolved
+ * @out_irq: structure of_irq filled by this function
+ *
+ * This function resolves the PCI interrupt for a given PCI device. If a
+ * device-node exists for a given pci_dev, it will use normal OF tree
+ * walking. If not, it will implement standard swizzling and walk up the
+ * PCI tree until an device-node is found, at which point it will finish
+ * resolving using the OF tree walking.
+ */
+int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
+{
+ struct device_node *dn, *ppnode;
+ struct pci_dev *ppdev;
+ u32 lspec;
+ __be32 lspec_be;
+ __be32 laddr[3];
+ u8 pin;
+ int rc;
+
+ /* Check if we have a device node, if yes, fallback to standard
+ * device tree parsing
+ */
+ dn = pci_device_to_OF_node(pdev);
+ if (dn) {
+ rc = of_irq_map_one(dn, 0, out_irq);
+ if (!rc)
+ return rc;
+ }
+
+ /* Ok, we don't, time to have fun. Let's start by building up an
+ * interrupt spec. we assume #interrupt-cells is 1, which is standard
+ * for PCI. If you do different, then don't use that routine.
+ */
+ rc = pci_read_config_byte(pdev, PCI_INTERRUPT_PIN, &pin);
+ if (rc != 0)
+ return rc;
+ /* No pin, exit */
+ if (pin == 0)
+ return -ENODEV;
+
+ /* Now we walk up the PCI tree */
+ lspec = pin;
+ for (;;) {
+ /* Get the pci_dev of our parent */
+ ppdev = pdev->bus->self;
+
+ /* Ouch, it's a host bridge... */
+ if (ppdev == NULL) {
+ ppnode = pci_bus_to_OF_node(pdev->bus);
+
+ /* No node for host bridge ? give up */
+ if (ppnode == NULL)
+ return -EINVAL;
+ } else {
+ /* We found a P2P bridge, check if it has a node */
+ ppnode = pci_device_to_OF_node(ppdev);
+ }
+
+ /* Ok, we have found a parent with a device-node, hand over to
+ * the OF parsing code.
+ * We build a unit address from the linux device to be used for
+ * resolution. Note that we use the linux bus number which may
+ * not match your firmware bus numbering.
+ * Fortunately, in most cases, interrupt-map-mask doesn't
+ * include the bus number as part of the matching.
+ * You should still be careful about that though if you intend
+ * to rely on this function (you ship a firmware that doesn't
+ * create device nodes for all PCI devices).
+ */
+ if (ppnode)
+ break;
+
+ /* We can only get here if we hit a P2P bridge with no node,
+ * let's do standard swizzling and try again
+ */
+ lspec = pci_swizzle_interrupt_pin(pdev, lspec);
+ pdev = ppdev;
+ }
+
+ lspec_be = cpu_to_be32(lspec);
+ laddr[0] = cpu_to_be32((pdev->bus->number << 16) | (pdev->devfn << 8));
+ laddr[1] = laddr[2] = cpu_to_be32(0);
+ return of_irq_map_raw(ppnode, &lspec_be, 1, laddr, out_irq);
+}
+EXPORT_SYMBOL_GPL(of_irq_map_pci);
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index dc2a0ba969c..911e75cdc12 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -37,6 +37,8 @@
#include <linux/mod_devicetable.h>
#include <linux/log2.h>
#include <linux/pm.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
/* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
#include <asm-generic/rtc.h>
@@ -1057,6 +1059,47 @@ static struct pnp_driver cmos_pnp_driver = {
#endif /* CONFIG_PNP */
+#ifdef CONFIG_OF
+static const struct of_device_id of_cmos_match[] = {
+ {
+ .compatible = "motorola,mc146818",
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(of, of_cmos_match);
+
+static __init void cmos_of_init(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct rtc_time time;
+ int ret;
+ const __be32 *val;
+
+ if (!node)
+ return;
+
+ val = of_get_property(node, "ctrl-reg", NULL);
+ if (val)
+ CMOS_WRITE(be32_to_cpup(val), RTC_CONTROL);
+
+ val = of_get_property(node, "freq-reg", NULL);
+ if (val)
+ CMOS_WRITE(be32_to_cpup(val), RTC_FREQ_SELECT);
+
+ get_rtc_time(&time);
+ ret = rtc_valid_tm(&time);
+ if (ret) {
+ struct rtc_time def_time = {
+ .tm_year = 1,
+ .tm_mday = 1,
+ };
+ set_rtc_time(&def_time);
+ }
+}
+#else
+static inline void cmos_of_init(struct platform_device *pdev) {}
+#define of_cmos_match NULL
+#endif
/*----------------------------------------------------------------*/
/* Platform setup should have set up an RTC device, when PNP is
@@ -1065,6 +1108,7 @@ static struct pnp_driver cmos_pnp_driver = {
static int __init cmos_platform_probe(struct platform_device *pdev)
{
+ cmos_of_init(pdev);
cmos_wake_setup(&pdev->dev);
return cmos_do_probe(&pdev->dev,
platform_get_resource(pdev, IORESOURCE_IO, 0),
@@ -1096,6 +1140,7 @@ static struct platform_driver cmos_platform_driver = {
#ifdef CONFIG_PM
.pm = &cmos_pm_ops,
#endif
+ .of_match_table = of_cmos_match,
}
};
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index 4db96fa306f..b86bc328463 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -62,6 +62,17 @@ static inline int is_intr(u8 rtc_intr)
return rtc_intr & RTC_IRQMASK;
}
+static inline unsigned char vrtc_is_updating(void)
+{
+ unsigned char uip;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
+ uip = (vrtc_cmos_read(RTC_FREQ_SELECT) & RTC_UIP);
+ spin_unlock_irqrestore(&rtc_lock, flags);
+ return uip;
+}
+
/*
* rtc_time's year contains the increment over 1900, but vRTC's YEAR
* register can't be programmed to value larger than 0x64, so vRTC
@@ -76,7 +87,7 @@ static int mrst_read_time(struct device *dev, struct rtc_time *time)
{
unsigned long flags;
- if (rtc_is_updating())
+ if (vrtc_is_updating())
mdelay(20);
spin_lock_irqsave(&rtc_lock, flags);
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index 95928833855..a429b01d028 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -1557,9 +1557,7 @@ static int __devinit pxa2xx_spi_probe(struct platform_device *pdev)
drv_data->ssp = ssp;
master->dev.parent = &pdev->dev;
-#ifdef CONFIG_OF
master->dev.of_node = pdev->dev.of_node;
-#endif
/* the spi->mode bits understood by this driver: */
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
diff --git a/drivers/spi/pxa2xx_spi_pci.c b/drivers/spi/pxa2xx_spi_pci.c
index 19752b09e15..378e504f89e 100644
--- a/drivers/spi/pxa2xx_spi_pci.c
+++ b/drivers/spi/pxa2xx_spi_pci.c
@@ -89,9 +89,7 @@ static int __devinit ce4100_spi_probe(struct pci_dev *dev,
goto err_nomem;
pdev->dev.parent = &dev->dev;
-#ifdef CONFIG_OF
pdev->dev.of_node = dev->dev.of_node;
-#endif
ssp = &spi_info->ssp;
ssp->phys_base = pci_resource_start(dev, 0);
ssp->mmio_base = ioremap(phys_beg, phys_len);
diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c
index 7adaef62a99..4d2c75df886 100644
--- a/drivers/spi/xilinx_spi.c
+++ b/drivers/spi/xilinx_spi.c
@@ -351,14 +351,12 @@ static irqreturn_t xilinx_spi_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
-#ifdef CONFIG_OF
static const struct of_device_id xilinx_spi_of_match[] = {
{ .compatible = "xlnx,xps-spi-2.00.a", },
{ .compatible = "xlnx,xps-spi-2.00.b", },
{}
};
MODULE_DEVICE_TABLE(of, xilinx_spi_of_match);
-#endif
struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
u32 irq, s16 bus_num, int num_cs, int little_endian, int bits_per_word)
@@ -394,9 +392,7 @@ struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
master->bus_num = bus_num;
master->num_chipselect = num_cs;
-#ifdef CONFIG_OF
master->dev.of_node = dev->of_node;
-#endif
xspi->mem = *mem;
xspi->irq = irq;
@@ -539,9 +535,7 @@ static struct platform_driver xilinx_spi_driver = {
.driver = {
.name = XILINX_SPI_NAME,
.owner = THIS_MODULE,
-#ifdef CONFIG_OF
.of_match_table = xilinx_spi_of_match,
-#endif
},
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 09:30:14 +0000