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path: root/drivers/misc/pch_phub.c
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Diffstat (limited to 'drivers/misc/pch_phub.c')
-rw-r--r--drivers/misc/pch_phub.c143
1 files changed, 81 insertions, 62 deletions
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index dee33addcae..956597321d2 100644
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2010 OKI SEMICONDUCTOR CO., LTD.
+ * Copyright (C) 2011 LAPIS Semiconductor Co., Ltd.
*
* 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
@@ -41,10 +41,10 @@
#define PCH_PHUB_ROM_START_ADDR_EG20T 0x80 /* ROM data area start address offset
(Intel EG20T PCH)*/
#define PCH_PHUB_ROM_START_ADDR_ML7213 0x400 /* ROM data area start address
- offset(OKI SEMICONDUCTOR ML7213)
+ offset(LAPIS Semicon ML7213)
*/
#define PCH_PHUB_ROM_START_ADDR_ML7223 0x400 /* ROM data area start address
- offset(OKI SEMICONDUCTOR ML7223)
+ offset(LAPIS Semicon ML7223)
*/
/* MAX number of INT_REDUCE_CONTROL registers */
@@ -65,14 +65,13 @@
#define PCI_VENDOR_ID_ROHM 0x10db
#define PCI_DEVICE_ID_ROHM_ML7213_PHUB 0x801A
-/* Macros for ML7213 */
-#define PCI_VENDOR_ID_ROHM 0x10db
-#define PCI_DEVICE_ID_ROHM_ML7213_PHUB 0x801A
-
/* Macros for ML7223 */
#define PCI_DEVICE_ID_ROHM_ML7223_mPHUB 0x8012 /* for Bus-m */
#define PCI_DEVICE_ID_ROHM_ML7223_nPHUB 0x8002 /* for Bus-n */
+/* Macros for ML7831 */
+#define PCI_DEVICE_ID_ROHM_ML7831_PHUB 0x8801
+
/* SROM ACCESS Macro */
#define PCH_WORD_ADDR_MASK (~((1 << 2) - 1))
@@ -115,6 +114,7 @@
* @pch_mac_start_address: MAC address area start address
* @pch_opt_rom_start_address: Option ROM start address
* @ioh_type: Save IOH type
+ * @pdev: pointer to pci device struct
*/
struct pch_phub_reg {
u32 phub_id_reg;
@@ -136,6 +136,7 @@ struct pch_phub_reg {
u32 pch_mac_start_address;
u32 pch_opt_rom_start_address;
int ioh_type;
+ struct pci_dev *pdev;
};
/* SROM SPEC for MAC address assignment offset */
@@ -471,7 +472,7 @@ static int pch_phub_write_gbe_mac_addr(struct pch_phub_reg *chip, u8 *data)
int retval;
int i;
- if (chip->ioh_type == 1) /* EG20T */
+ if ((chip->ioh_type == 1) || (chip->ioh_type == 5)) /* EG20T or ML7831*/
retval = pch_phub_gbe_serial_rom_conf(chip);
else /* ML7223 */
retval = pch_phub_gbe_serial_rom_conf_mp(chip);
@@ -498,6 +499,7 @@ static ssize_t pch_phub_bin_read(struct file *filp, struct kobject *kobj,
unsigned int orom_size;
int ret;
int err;
+ ssize_t rom_size;
struct pch_phub_reg *chip =
dev_get_drvdata(container_of(kobj, struct device, kobj));
@@ -509,6 +511,10 @@ static ssize_t pch_phub_bin_read(struct file *filp, struct kobject *kobj,
}
/* Get Rom signature */
+ chip->pch_phub_extrom_base_address = pci_map_rom(chip->pdev, &rom_size);
+ if (!chip->pch_phub_extrom_base_address)
+ goto exrom_map_err;
+
pch_phub_read_serial_rom(chip, chip->pch_opt_rom_start_address,
(unsigned char *)&rom_signature);
rom_signature &= 0xff;
@@ -539,10 +545,13 @@ static ssize_t pch_phub_bin_read(struct file *filp, struct kobject *kobj,
goto return_err;
}
return_ok:
+ pci_unmap_rom(chip->pdev, chip->pch_phub_extrom_base_address);
mutex_unlock(&pch_phub_mutex);
return addr_offset;
return_err:
+ pci_unmap_rom(chip->pdev, chip->pch_phub_extrom_base_address);
+exrom_map_err:
mutex_unlock(&pch_phub_mutex);
return_err_nomutex:
return err;
@@ -555,6 +564,7 @@ static ssize_t pch_phub_bin_write(struct file *filp, struct kobject *kobj,
int err;
unsigned int addr_offset;
int ret;
+ ssize_t rom_size;
struct pch_phub_reg *chip =
dev_get_drvdata(container_of(kobj, struct device, kobj));
@@ -571,6 +581,12 @@ static ssize_t pch_phub_bin_write(struct file *filp, struct kobject *kobj,
goto return_ok;
}
+ chip->pch_phub_extrom_base_address = pci_map_rom(chip->pdev, &rom_size);
+ if (!chip->pch_phub_extrom_base_address) {
+ err = -ENOMEM;
+ goto exrom_map_err;
+ }
+
for (addr_offset = 0; addr_offset < count; addr_offset++) {
if (PCH_PHUB_OROM_SIZE < off + addr_offset)
goto return_ok;
@@ -585,10 +601,14 @@ static ssize_t pch_phub_bin_write(struct file *filp, struct kobject *kobj,
}
return_ok:
+ pci_unmap_rom(chip->pdev, chip->pch_phub_extrom_base_address);
mutex_unlock(&pch_phub_mutex);
return addr_offset;
return_err:
+ pci_unmap_rom(chip->pdev, chip->pch_phub_extrom_base_address);
+
+exrom_map_err:
mutex_unlock(&pch_phub_mutex);
return err;
}
@@ -598,8 +618,14 @@ static ssize_t show_pch_mac(struct device *dev, struct device_attribute *attr,
{
u8 mac[8];
struct pch_phub_reg *chip = dev_get_drvdata(dev);
+ ssize_t rom_size;
+
+ chip->pch_phub_extrom_base_address = pci_map_rom(chip->pdev, &rom_size);
+ if (!chip->pch_phub_extrom_base_address)
+ return -ENOMEM;
pch_phub_read_gbe_mac_addr(chip, mac);
+ pci_unmap_rom(chip->pdev, chip->pch_phub_extrom_base_address);
return sprintf(buf, "%pM\n", mac);
}
@@ -607,17 +633,22 @@ static ssize_t show_pch_mac(struct device *dev, struct device_attribute *attr,
static ssize_t store_pch_mac(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- u8 mac[6];
+ u8 mac[ETH_ALEN];
+ ssize_t rom_size;
struct pch_phub_reg *chip = dev_get_drvdata(dev);
+ int ret;
- if (count != 18)
+ if (!mac_pton(buf, mac))
return -EINVAL;
- sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
- (u32 *)&mac[0], (u32 *)&mac[1], (u32 *)&mac[2], (u32 *)&mac[3],
- (u32 *)&mac[4], (u32 *)&mac[5]);
+ chip->pch_phub_extrom_base_address = pci_map_rom(chip->pdev, &rom_size);
+ if (!chip->pch_phub_extrom_base_address)
+ return -ENOMEM;
- pch_phub_write_gbe_mac_addr(chip, mac);
+ ret = pch_phub_write_gbe_mac_addr(chip, mac);
+ pci_unmap_rom(chip->pdev, chip->pch_phub_extrom_base_address);
+ if (ret)
+ return ret;
return count;
}
@@ -634,13 +665,10 @@ static struct bin_attribute pch_bin_attr = {
.write = pch_phub_bin_write,
};
-static int __devinit pch_phub_probe(struct pci_dev *pdev,
+static int pch_phub_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
- int retval;
-
int ret;
- ssize_t rom_size;
struct pch_phub_reg *chip;
chip = kzalloc(sizeof(struct pch_phub_reg), GFP_KERNEL);
@@ -668,7 +696,7 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
chip->pch_phub_base_address = pci_iomap(pdev, 1, 0);
- if (chip->pch_phub_base_address == 0) {
+ if (chip->pch_phub_base_address == NULL) {
dev_err(&pdev->dev, "%s : pci_iomap FAILED", __func__);
ret = -ENOMEM;
goto err_pci_iomap;
@@ -677,30 +705,18 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
"in pch_phub_base_address variable is %p\n", __func__,
chip->pch_phub_base_address);
- if (id->driver_data != 3) {
- chip->pch_phub_extrom_base_address =\
- pci_map_rom(pdev, &rom_size);
- if (chip->pch_phub_extrom_base_address == 0) {
- dev_err(&pdev->dev, "%s: pci_map_rom FAILED", __func__);
- ret = -ENOMEM;
- goto err_pci_map;
- }
- dev_dbg(&pdev->dev, "%s : "
- "pci_map_rom SUCCESS and value in "
- "pch_phub_extrom_base_address variable is %p\n",
- __func__, chip->pch_phub_extrom_base_address);
- }
+ chip->pdev = pdev; /* Save pci device struct */
if (id->driver_data == 1) { /* EG20T PCH */
const char *board_name;
- retval = sysfs_create_file(&pdev->dev.kobj,
- &dev_attr_pch_mac.attr);
- if (retval)
+ ret = sysfs_create_file(&pdev->dev.kobj,
+ &dev_attr_pch_mac.attr);
+ if (ret)
goto err_sysfs_create;
- retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
- if (retval)
+ ret = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
+ if (ret)
goto exit_bin_attr;
pch_phub_read_modify_write_reg(chip,
@@ -724,8 +740,8 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
chip->pch_opt_rom_start_address = PCH_PHUB_ROM_START_ADDR_EG20T;
chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_EG20T;
} else if (id->driver_data == 2) { /* ML7213 IOH */
- retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
- if (retval)
+ ret = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
+ if (ret)
goto err_sysfs_create;
/* set the prefech value
* Device2(USB OHCI #1/ USB EHCI #1/ USB Device):a
@@ -747,12 +763,12 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
PCH_PHUB_ROM_START_ADDR_ML7223;
chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223;
} else if (id->driver_data == 4) { /* ML7223 IOH Bus-n*/
- retval = sysfs_create_file(&pdev->dev.kobj,
- &dev_attr_pch_mac.attr);
- if (retval)
+ ret = sysfs_create_file(&pdev->dev.kobj,
+ &dev_attr_pch_mac.attr);
+ if (ret)
goto err_sysfs_create;
- retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
- if (retval)
+ ret = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
+ if (ret)
goto exit_bin_attr;
/* set the prefech value
* Device2(USB OHCI #0,1,2,3/ USB EHCI #0):a
@@ -763,6 +779,22 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
chip->pch_opt_rom_start_address =\
PCH_PHUB_ROM_START_ADDR_ML7223;
chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223;
+ } else if (id->driver_data == 5) { /* ML7831 */
+ ret = sysfs_create_file(&pdev->dev.kobj,
+ &dev_attr_pch_mac.attr);
+ if (ret)
+ goto err_sysfs_create;
+
+ ret = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
+ if (ret)
+ goto exit_bin_attr;
+
+ /* set the prefech value */
+ iowrite32(0x000affaa, chip->pch_phub_base_address + 0x14);
+ /* set the interrupt delay value */
+ iowrite32(0x25, chip->pch_phub_base_address + 0x44);
+ chip->pch_opt_rom_start_address = PCH_PHUB_ROM_START_ADDR_EG20T;
+ chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_EG20T;
}
chip->ioh_type = id->driver_data;
@@ -773,8 +805,6 @@ exit_bin_attr:
sysfs_remove_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr);
err_sysfs_create:
- pci_unmap_rom(pdev, chip->pch_phub_extrom_base_address);
-err_pci_map:
pci_iounmap(pdev, chip->pch_phub_base_address);
err_pci_iomap:
pci_release_regions(pdev);
@@ -786,13 +816,12 @@ err_pci_enable_dev:
return ret;
}
-static void __devexit pch_phub_remove(struct pci_dev *pdev)
+static void pch_phub_remove(struct pci_dev *pdev)
{
struct pch_phub_reg *chip = pci_get_drvdata(pdev);
sysfs_remove_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr);
sysfs_remove_bin_file(&pdev->dev.kobj, &pch_bin_attr);
- pci_unmap_rom(pdev, chip->pch_phub_extrom_base_address);
pci_iounmap(pdev, chip->pch_phub_base_address);
pci_release_regions(pdev);
pci_disable_device(pdev);
@@ -847,6 +876,7 @@ static struct pci_device_id pch_phub_pcidev_id[] = {
{ PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7213_PHUB), 2, },
{ PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_mPHUB), 3, },
{ PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_nPHUB), 4, },
+ { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7831_PHUB), 5, },
{ }
};
MODULE_DEVICE_TABLE(pci, pch_phub_pcidev_id);
@@ -855,23 +885,12 @@ static struct pci_driver pch_phub_driver = {
.name = "pch_phub",
.id_table = pch_phub_pcidev_id,
.probe = pch_phub_probe,
- .remove = __devexit_p(pch_phub_remove),
+ .remove = pch_phub_remove,
.suspend = pch_phub_suspend,
.resume = pch_phub_resume
};
-static int __init pch_phub_pci_init(void)
-{
- return pci_register_driver(&pch_phub_driver);
-}
-
-static void __exit pch_phub_pci_exit(void)
-{
- pci_unregister_driver(&pch_phub_driver);
-}
-
-module_init(pch_phub_pci_init);
-module_exit(pch_phub_pci_exit);
+module_pci_driver(pch_phub_driver);
-MODULE_DESCRIPTION("Intel EG20T PCH/OKI SEMICONDUCTOR IOH(ML7213/ML7223) PHUB");
+MODULE_DESCRIPTION("Intel EG20T PCH/LAPIS Semiconductor IOH(ML7213/ML7223) PHUB");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 17:15:30 +0000