pch_phub: add new device ML7213

Add ML7213 device information.
ML7213 is companion chip of Intel Atom E6xx series for IVI(In-Vehicle Infotainment).
ML7213 is completely compatible for Intel EG20T PCH.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 53 insertions, 23 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index cc8e49db45fe..b7d5ef234ac9 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -441,7 +441,7 @@ config BMP085
           module will be called bmp085.
 
 config PCH_PHUB
-        tristate "PCH Packet Hub of Intel Topcliff"
+        tristate "PCH Packet Hub of Intel Topcliff / OKI SEMICONDUCTOR ML7213"
         depends on PCI
         help
           This driver is for PCH(Platform controller Hub) PHUB(Packet Hub) of
@@ -449,6 +449,11 @@ config PCH_PHUB
           processor. The Topcliff has MAC address and Option ROM data in SROM.
           This driver can access MAC address and Option ROM data in SROM.
 
+          This driver also can be used for OKI SEMICONDUCTOR's ML7213 which is
+          for IVI(In-Vehicle Infotainment) use.
+          ML7213 is companion chip for Intel Atom E6xx series.
+          ML7213 is completely compatible for Intel EG20T PCH.
+
           To compile this driver as a module, choose M here: the module will
           be called pch_phub.
 
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index 744b804aca15..98bffc471b17 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) 2010 OKI 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
@@ -33,7 +33,12 @@
 #define PHUB_TIMEOUT 0x05               /* Time out value for Status Register */
 #define PCH_PHUB_ROM_WRITE_ENABLE 0x01  /* Enabling for writing ROM */
 #define PCH_PHUB_ROM_WRITE_DISABLE 0x00 /* Disabling for writing ROM */
-#define PCH_PHUB_ROM_START_ADDR 0x14    /* ROM data area start address offset */
+#define PCH_PHUB_MAC_START_ADDR 0x20C  /* MAC data area start address offset */
+#define PCH_PHUB_ROM_START_ADDR_EG20T 0x14 /* 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)
+                                              */
 
 /* MAX number of INT_REDUCE_CONTROL registers */
 #define MAX_NUM_INT_REDUCE_CONTROL_REG 128
@@ -42,6 +47,10 @@
 #define CLKCFG_CAN_50MHZ 0x12000000
 #define CLKCFG_CANCLK_MASK 0xFF000000
 
+/* Macros for ML7213 */
+#define PCI_VENDOR_ID_ROHM                      0x10db
+#define PCI_DEVICE_ID_ROHM_ML7213_PHUB          0x801A
+
 /* SROM ACCESS Macro */
 #define PCH_WORD_ADDR_MASK (~((1 << 2) - 1))
 
@@ -298,7 +307,7 @@ static void pch_phub_read_serial_rom_val(struct pch_phub_reg *chip,
 {
         unsigned int mem_addr;
 
-        mem_addr = PCH_PHUB_ROM_START_ADDR +
+        mem_addr = PCH_PHUB_ROM_START_ADDR_EG20T +
                         pch_phub_mac_offset[offset_address];
 
         pch_phub_read_serial_rom(chip, mem_addr, data);
@@ -315,7 +324,7 @@ static int pch_phub_write_serial_rom_val(struct pch_phub_reg *chip,
         int retval;
         unsigned int mem_addr;
 
-        mem_addr = PCH_PHUB_ROM_START_ADDR +
+        mem_addr = PCH_PHUB_ROM_START_ADDR_EG20T +
                         pch_phub_mac_offset[offset_address];
 
         retval = pch_phub_write_serial_rom(chip, mem_addr, data);
@@ -594,23 +603,38 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
                 "pch_phub_extrom_base_address variable is %p\n", __func__,
                 chip->pch_phub_extrom_base_address);
 
-        pci_set_drvdata(pdev, chip);
-
-        retval = sysfs_create_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr);
-        if (retval)
-                goto err_sysfs_create;
-
-        retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
-        if (retval)
-                goto exit_bin_attr;
-
-        pch_phub_read_modify_write_reg(chip, (unsigned int)CLKCFG_REG_OFFSET,
-                                        CLKCFG_CAN_50MHZ, CLKCFG_CANCLK_MASK);
+        if (id->driver_data == 1) {
+                retval = sysfs_create_file(&pdev->dev.kobj,
+                                           &dev_attr_pch_mac.attr);
+                if (retval)
+                        goto err_sysfs_create;
 
-        /* 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);
+                retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
+                if (retval)
+                        goto exit_bin_attr;
+
+                pch_phub_read_modify_write_reg(chip,
+                                               (unsigned int)CLKCFG_REG_OFFSET,
+                                               CLKCFG_CAN_50MHZ,
+                                               CLKCFG_CANCLK_MASK);
+
+                /* 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);
+        } else if (id->driver_data == 2) {
+                retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
+                if (retval)
+                        goto err_sysfs_create;
+                /* set the prefech value
+                 * Device2(USB OHCI #1/ USB EHCI #1/ USB Device):a
+                 * Device4(SDIO #0,1,2):f
+                 * Device6(SATA 2):f
+                 * Device8(USB OHCI #0/ USB EHCI #0):a
+                 */
+                iowrite32(0x000affa0, chip->pch_phub_base_address + 0x14);
+        }
+        pci_set_drvdata(pdev, chip);
 
         return 0;
 exit_bin_attr:
@@ -687,8 +711,9 @@ static int pch_phub_resume(struct pci_dev *pdev)
 #endif /* CONFIG_PM */
 
 static struct pci_device_id pch_phub_pcidev_id[] = {
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PCH1_PHUB)},
-        {0,}
+        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PCH1_PHUB),       1,  },
+        { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7213_PHUB), 2,  },
+        { }
 };
 
 static struct pci_driver pch_phub_driver = {