};
};
- gpioa {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0 0x20>;
- bank-name = "A";
- };
-
- gpiob {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0x20 0x20>;
- bank-name = "B";
- };
-
- gpioc {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0x40 0x20>;
- bank-name = "C";
- };
-
- gpiod {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0x60 0x20>;
- bank-name = "D";
- };
-
- gpioe {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0x80 0x20>;
- bank-name = "E";
- };
-
- gpiof {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0xA0 0x20>;
- bank-name = "F";
- };
-
pci {
compatible = "pci-x86";
#address-cells = <3>;
pch@1f,0 {
reg = <0x0000f800 0 0 0 0>;
compatible = "intel,pch9";
+ #address-cells = <1>;
+ #size-cells = <1>;
irq-router {
compatible = "intel,irq-router";
};
};
};
+
+ gpioa {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0 0x20>;
+ bank-name = "A";
+ };
+
+ gpiob {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0x20 0x20>;
+ bank-name = "B";
+ };
+
+ gpioc {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0x40 0x20>;
+ bank-name = "C";
+ };
+
+ gpiod {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0x60 0x20>;
+ bank-name = "D";
+ };
+
+ gpioe {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0x80 0x20>;
+ bank-name = "E";
+ };
+
+ gpiof {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0xA0 0x20>;
+ bank-name = "F";
+ };
};
};
};
};
- gpioa {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0 0x20>;
- bank-name = "A";
- };
-
- gpiob {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0x20 0x20>;
- bank-name = "B";
- };
-
- gpioc {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0x40 0x20>;
- bank-name = "C";
- };
-
- gpiod {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0x60 0x20>;
- bank-name = "D";
- };
-
- gpioe {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0x80 0x20>;
- bank-name = "E";
- };
-
- gpiof {
- compatible = "intel,ich6-gpio";
- u-boot,dm-pre-reloc;
- reg = <0xA0 0x20>;
- bank-name = "F";
- };
-
chosen {
stdout-path = "/serial";
};
pch@1f,0 {
reg = <0x0000f800 0 0 0 0>;
compatible = "pci8086,0f1c", "intel,pch9";
+ #address-cells = <1>;
+ #size-cells = <1>;
irq-router {
compatible = "intel,irq-router";
};
};
};
+
+ gpioa {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0 0x20>;
+ bank-name = "A";
+ };
+
+ gpiob {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0x20 0x20>;
+ bank-name = "B";
+ };
+
+ gpioc {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0x40 0x20>;
+ bank-name = "C";
+ };
+
+ gpiod {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0x60 0x20>;
+ bank-name = "D";
+ };
+
+ gpioe {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0x80 0x20>;
+ bank-name = "E";
+ };
+
+ gpiof {
+ compatible = "intel,ich6-gpio";
+ u-boot,dm-pre-reloc;
+ reg = <0xA0 0x20>;
+ bank-name = "F";
+ };
};
};
#include <dm.h>
#include <errno.h>
#include <fdtdec.h>
+#include <pch.h>
#include <pci.h>
#include <asm/gpio.h>
#include <asm/io.h>
gd->arch.gpio_map = map;
}
-static int gpio_ich6_get_base(unsigned long base)
-{
- pci_dev_t pci_dev; /* handle for 0:1f:0 */
- u8 tmpbyte;
- u16 tmpword;
- u32 tmplong;
-
- /* Where should it be? */
- pci_dev = PCI_BDF(0, 0x1f, 0);
-
- /* Is the device present? */
- tmpword = x86_pci_read_config16(pci_dev, PCI_VENDOR_ID);
- if (tmpword != PCI_VENDOR_ID_INTEL) {
- debug("%s: wrong VendorID %x\n", __func__, tmpword);
- return -ENODEV;
- }
-
- tmpword = x86_pci_read_config16(pci_dev, PCI_DEVICE_ID);
- debug("Found %04x:%04x\n", PCI_VENDOR_ID_INTEL, tmpword);
- /*
- * We'd like to validate the Device ID too, but pretty much any
- * value is either a) correct with slight differences, or b)
- * correct but undocumented. We'll have to check a bunch of other
- * things instead...
- */
-
- /* I/O should already be enabled (it's a RO bit). */
- tmpword = x86_pci_read_config16(pci_dev, PCI_COMMAND);
- if (!(tmpword & PCI_COMMAND_IO)) {
- debug("%s: device IO not enabled\n", __func__);
- return -ENODEV;
- }
-
- /* Header Type must be normal (bits 6-0 only; see spec.) */
- tmpbyte = x86_pci_read_config8(pci_dev, PCI_HEADER_TYPE);
- if ((tmpbyte & 0x7f) != PCI_HEADER_TYPE_NORMAL) {
- debug("%s: invalid Header type\n", __func__);
- return -ENODEV;
- }
-
- /* Base Class must be a bridge device */
- tmpbyte = x86_pci_read_config8(pci_dev, PCI_CLASS_CODE);
- if (tmpbyte != PCI_CLASS_CODE_BRIDGE) {
- debug("%s: invalid class\n", __func__);
- return -ENODEV;
- }
- /* Sub Class must be ISA */
- tmpbyte = x86_pci_read_config8(pci_dev, PCI_CLASS_SUB_CODE);
- if (tmpbyte != PCI_CLASS_SUB_CODE_BRIDGE_ISA) {
- debug("%s: invalid subclass\n", __func__);
- return -ENODEV;
- }
-
- /* Programming Interface must be 0x00 (no others exist) */
- tmpbyte = x86_pci_read_config8(pci_dev, PCI_CLASS_PROG);
- if (tmpbyte != 0x00) {
- debug("%s: invalid interface type\n", __func__);
- return -ENODEV;
- }
-
- /*
- * GPIOBASE moved to its current offset with ICH6, but prior to
- * that it was unused (or undocumented). Check that it looks
- * okay: not all ones or zeros.
- *
- * Note we don't need check bit0 here, because the Tunnel Creek
- * GPIO base address register bit0 is reserved (read returns 0),
- * while on the Ivybridge the bit0 is used to indicate it is an
- * I/O space.
- */
- tmplong = x86_pci_read_config32(pci_dev, base);
- if (tmplong == 0x00000000 || tmplong == 0xffffffff) {
- debug("%s: unexpected BASE value\n", __func__);
- return -ENODEV;
- }
-
- /*
- * Okay, I guess we're looking at the right device. The actual
- * GPIO registers are in the PCI device's I/O space, starting
- * at the offset that we just read. Bit 0 indicates that it's
- * an I/O address, not a memory address, so mask that off.
- */
- return tmplong & 1 ? tmplong & ~3 : tmplong & ~15;
-}
-
static int _ich6_gpio_set_value(uint16_t base, unsigned offset, int value)
{
u32 val;
int gpio_ich6_pinctrl_init(void)
{
+ struct udevice *pch;
int pin_node;
int node;
int ret;
- int gpiobase;
- int iobase_offset;
- int iobase = -1;
+ u32 gpiobase;
+ u32 iobase = -1;
+
+ ret = uclass_first_device(UCLASS_PCH, &pch);
+ if (ret)
+ return ret;
+ if (!pch)
+ return -ENODEV;
/*
* Get the memory/io base address to configure every pins.
* IOBASE is used to configure the mode/pads
* GPIOBASE is used to configure the direction and default value
*/
- gpiobase = gpio_ich6_get_base(PCI_CFG_GPIOBASE);
- if (gpiobase < 0) {
+ ret = pch_get_gpio_base(pch, &gpiobase);
+ if (ret) {
debug("%s: invalid GPIOBASE address (%08x)\n", __func__,
gpiobase);
return -EINVAL;
* Get the IOBASE, this is not mandatory as this is not
* supported by all the CPU
*/
- iobase_offset = fdtdec_get_int(gd->fdt_blob, node, "io-base", -1);
- if (iobase_offset == -1) {
- debug("%s: io-base offset not present\n", __func__);
- } else {
- iobase = gpio_ich6_get_base(iobase_offset);
- if (IS_ERR_VALUE(iobase)) {
- debug("%s: invalid IOBASE address (%08x)\n", __func__,
- iobase);
- return -EINVAL;
- }
+ ret = pch_get_io_base(pch, &iobase);
+ if (ret && ret != -ENOSYS) {
+ debug("%s: invalid IOBASE address (%08x)\n", __func__,
+ iobase);
+ return -EINVAL;
}
for (pin_node = fdt_first_subnode(gd->fdt_blob, node);
static int gpio_ich6_ofdata_to_platdata(struct udevice *dev)
{
struct ich6_bank_platdata *plat = dev_get_platdata(dev);
- u16 gpiobase;
+ u32 gpiobase;
int offset;
+ int ret;
+
+ ret = pch_get_gpio_base(dev->parent, &gpiobase);
+ if (ret)
+ return ret;
- gpiobase = gpio_ich6_get_base(PCI_CFG_GPIOBASE);
offset = fdtdec_get_int(gd->fdt_blob, dev->of_offset, "reg", -1);
if (offset == -1) {
debug("%s: Invalid register offset %d\n", __func__, offset);
projects / u-boot / commitdiff