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Date: Thu, 12 May 2011 13:12:36 +0900
From: Tomoya MORINAGA <tomoya-linux@....okisemi.com>
To: linux-kernel@...r.kernel.org, gregkh@...e.de
Cc: qi.wang@...el.com, yong.y.wang@...el.com, joel.clark@...el.com,
kok.howg.ewe@...el.com, toshiharu-linux@....okisemi.com,
Tomoya MORINAGA <tomoya-linux@....okisemi.com>
Subject: [PATCH] pch_phub: Support new device ML7223
Support new device OKI SEMICONDUCTOR ML7223 IOH(Input/Output Hub).
The ML7223 IOH is for MP(Media Phone) use.
The ML7223 is companion chip for Intel Atom E6xx series.
The ML7223 is completely compatible for Intel EG20T PCH.
Signed-off-by: Tomoya MORINAGA <tomoya-linux@....okisemi.com>
---
drivers/misc/Kconfig | 12 ++--
drivers/misc/pch_phub.c | 153 +++++++++++++++++++++++++++++++++++++++-------
2 files changed, 136 insertions(+), 29 deletions(-)
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 754d616..32df7e7 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 / OKI SEMICONDUCTOR ML7213"
+ tristate "Intel EG20T PCH / OKI SEMICONDUCTOR IOH(ML7213/ML7223) PHUB"
depends on PCI
help
This driver is for PCH(Platform controller Hub) PHUB(Packet Hub) of
@@ -449,10 +449,12 @@ 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.
+ This driver also can be used for OKI SEMICONDUCTOR IOH(Input/
+ Output Hub), ML7213 and ML7223.
+ ML7213 IOH is for IVI(In-Vehicle Infotainment) use and ML7223 IOH is
+ for MP(Media Phone) use.
+ ML7213/ML7223 is companion chip for Intel Atom E6xx series.
+ ML7213/ML7223 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 b41e108..b5f3b51 100644
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -34,12 +34,18 @@
#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_MAC_START_ADDR 0x20C /* MAC data area start address offset */
-#define PCH_PHUB_ROM_START_ADDR_EG20T 0x14 /* ROM data area start address offset
+#define PCH_PHUB_MAC_START_ADDR_EG20T 0x14 /* MAC data area start address
+ offset */
+#define PCH_PHUB_MAC_START_ADDR_ML7223 0x20C /* MAC data area start address
+ offset */
+#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)
*/
+#define PCH_PHUB_ROM_START_ADDR_ML7223 0x400 /* ROM data area start address
+ offset(OKI SEMICONDUCTOR ML7223)
+ */
/* MAX number of INT_REDUCE_CONTROL registers */
#define MAX_NUM_INT_REDUCE_CONTROL_REG 128
@@ -59,6 +65,10 @@
#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 */
+
/* SROM ACCESS Macro */
#define PCH_WORD_ADDR_MASK (~((1 << 2) - 1))
@@ -96,6 +106,9 @@
* @clkcfg_reg: CLK CFG register val
* @pch_phub_base_address: Register base address
* @pch_phub_extrom_base_address: external rom base address
+ * @pch_mac_start_address: MAC address area start address
+ * @pch_opt_rom_start_address: Option ROM start address
+ * @ioh_type: Save IOH type
*/
struct pch_phub_reg {
u32 phub_id_reg;
@@ -113,6 +126,9 @@ struct pch_phub_reg {
u32 clkcfg_reg;
void __iomem *pch_phub_base_address;
void __iomem *pch_phub_extrom_base_address;
+ u32 pch_mac_start_address;
+ u32 pch_opt_rom_start_address;
+ int ioh_type;
};
/* SROM SPEC for MAC address assignment offset */
@@ -315,7 +331,7 @@ static void pch_phub_read_serial_rom_val(struct pch_phub_reg *chip,
{
unsigned int mem_addr;
- mem_addr = PCH_PHUB_ROM_START_ADDR_EG20T +
+ mem_addr = chip->pch_mac_start_address +
pch_phub_mac_offset[offset_address];
pch_phub_read_serial_rom(chip, mem_addr, data);
@@ -332,7 +348,7 @@ 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_EG20T +
+ mem_addr = chip->pch_mac_start_address +
pch_phub_mac_offset[offset_address];
retval = pch_phub_write_serial_rom(chip, mem_addr, data);
@@ -380,6 +396,48 @@ static int pch_phub_gbe_serial_rom_conf(struct pch_phub_reg *chip)
return retval;
}
+/* pch_phub_gbe_serial_rom_conf_mp - makes SerialROM header format configuration
+ * for Gigabit Ethernet MAC address
+ */
+static int pch_phub_gbe_serial_rom_conf_mp(struct pch_phub_reg *chip)
+{
+ int retval;
+ u32 offset_addr;
+
+ offset_addr = 0x200;
+ retval = pch_phub_write_serial_rom(chip, 0x03 + offset_addr, 0xbc);
+ retval |= pch_phub_write_serial_rom(chip, 0x02 + offset_addr, 0x00);
+ retval |= pch_phub_write_serial_rom(chip, 0x01 + offset_addr, 0x40);
+ retval |= pch_phub_write_serial_rom(chip, 0x00 + offset_addr, 0x02);
+
+ retval |= pch_phub_write_serial_rom(chip, 0x07 + offset_addr, 0x00);
+ retval |= pch_phub_write_serial_rom(chip, 0x06 + offset_addr, 0x00);
+ retval |= pch_phub_write_serial_rom(chip, 0x05 + offset_addr, 0x00);
+ retval |= pch_phub_write_serial_rom(chip, 0x04 + offset_addr, 0x80);
+
+ retval |= pch_phub_write_serial_rom(chip, 0x0b + offset_addr, 0xbc);
+ retval |= pch_phub_write_serial_rom(chip, 0x0a + offset_addr, 0x00);
+ retval |= pch_phub_write_serial_rom(chip, 0x09 + offset_addr, 0x40);
+ retval |= pch_phub_write_serial_rom(chip, 0x08 + offset_addr, 0x18);
+
+ retval |= pch_phub_write_serial_rom(chip, 0x13 + offset_addr, 0xbc);
+ retval |= pch_phub_write_serial_rom(chip, 0x12 + offset_addr, 0x00);
+ retval |= pch_phub_write_serial_rom(chip, 0x11 + offset_addr, 0x40);
+ retval |= pch_phub_write_serial_rom(chip, 0x10 + offset_addr, 0x19);
+
+ retval |= pch_phub_write_serial_rom(chip, 0x1b + offset_addr, 0xbc);
+ retval |= pch_phub_write_serial_rom(chip, 0x1a + offset_addr, 0x00);
+ retval |= pch_phub_write_serial_rom(chip, 0x19 + offset_addr, 0x40);
+ retval |= pch_phub_write_serial_rom(chip, 0x18 + offset_addr, 0x3a);
+
+ retval |= pch_phub_write_serial_rom(chip, 0x1f + offset_addr, 0x01);
+ retval |= pch_phub_write_serial_rom(chip, 0x1e + offset_addr, 0x00);
+ retval |= pch_phub_write_serial_rom(chip, 0x1d + offset_addr, 0x00);
+ retval |= pch_phub_write_serial_rom(chip, 0x1c + offset_addr, 0x00);
+
+ return retval;
+}
+
/**
* pch_phub_read_gbe_mac_addr() - Read Gigabit Ethernet MAC address
* @offset_address: Gigabit Ethernet MAC address offset value.
@@ -402,7 +460,10 @@ static int pch_phub_write_gbe_mac_addr(struct pch_phub_reg *chip, u8 *data)
int retval;
int i;
- retval = pch_phub_gbe_serial_rom_conf(chip);
+ if (chip->ioh_type == 1) /* EG20T */
+ retval = pch_phub_gbe_serial_rom_conf(chip);
+ else /* ML7223 */
+ retval = pch_phub_gbe_serial_rom_conf_mp(chip);
if (retval)
return retval;
@@ -437,12 +498,16 @@ static ssize_t pch_phub_bin_read(struct file *filp, struct kobject *kobj,
}
/* Get Rom signature */
- pch_phub_read_serial_rom(chip, 0x80, (unsigned char *)&rom_signature);
+ pch_phub_read_serial_rom(chip, chip->pch_opt_rom_start_address,
+ (unsigned char *)&rom_signature);
rom_signature &= 0xff;
- pch_phub_read_serial_rom(chip, 0x81, (unsigned char *)&tmp);
+ pch_phub_read_serial_rom(chip, chip->pch_opt_rom_start_address + 1,
+ (unsigned char *)&tmp);
rom_signature |= (tmp & 0xff) << 8;
if (rom_signature == 0xAA55) {
- pch_phub_read_serial_rom(chip, 0x82, &rom_length);
+ pch_phub_read_serial_rom(chip,
+ chip->pch_opt_rom_start_address + 2,
+ &rom_length);
orom_size = rom_length * 512;
if (orom_size < off) {
addr_offset = 0;
@@ -454,8 +519,9 @@ static ssize_t pch_phub_bin_read(struct file *filp, struct kobject *kobj,
}
for (addr_offset = 0; addr_offset < count; addr_offset++) {
- pch_phub_read_serial_rom(chip, 0x80 + addr_offset + off,
- &buf[addr_offset]);
+ pch_phub_read_serial_rom(chip,
+ chip->pch_opt_rom_start_address + addr_offset + off,
+ &buf[addr_offset]);
}
} else {
err = -ENODATA;
@@ -498,8 +564,9 @@ static ssize_t pch_phub_bin_write(struct file *filp, struct kobject *kobj,
if (PCH_PHUB_OROM_SIZE < off + addr_offset)
goto return_ok;
- ret = pch_phub_write_serial_rom(chip, 0x80 + addr_offset + off,
- buf[addr_offset]);
+ ret = pch_phub_write_serial_rom(chip,
+ chip->pch_opt_rom_start_address + addr_offset + off,
+ buf[addr_offset]);
if (ret) {
err = ret;
goto return_err;
@@ -599,19 +666,22 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
dev_dbg(&pdev->dev, "%s : pci_iomap SUCCESS and value "
"in pch_phub_base_address variable is %p\n", __func__,
chip->pch_phub_base_address);
- 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;
+ 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);
}
- 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);
- if (id->driver_data == 1) {
+ if (id->driver_data == 1) { /* EG20T PCH */
retval = sysfs_create_file(&pdev->dev.kobj,
&dev_attr_pch_mac.attr);
if (retval)
@@ -638,7 +708,9 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
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) {
+ 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)
goto err_sysfs_create;
@@ -649,7 +721,38 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
* Device8(USB OHCI #0/ USB EHCI #0):a
*/
iowrite32(0x000affa0, chip->pch_phub_base_address + 0x14);
+ chip->pch_opt_rom_start_address =\
+ PCH_PHUB_ROM_START_ADDR_ML7213;
+ } else if (id->driver_data == 3) { /* ML7223 IOH Bus-m*/
+ /* set the prefech value
+ * Device8(GbE)
+ */
+ iowrite32(0x000a0000, chip->pch_phub_base_address + 0x14);
+ 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 == 4) { /* ML7223 IOH Bus-n*/
+ 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;
+ /* set the prefech value
+ * Device2(USB OHCI #0,1,2,3/ USB EHCI #0):a
+ * Device4(SDIO #0,1):f
+ * Device6(SATA 2):f
+ */
+ iowrite32(0x0000ffa0, chip->pch_phub_base_address + 0x14);
+ /* set the interrupt delay value */
+ iowrite32(0x25, chip->pch_phub_base_address + 0x140);
+ chip->pch_opt_rom_start_address =\
+ PCH_PHUB_ROM_START_ADDR_ML7223;
+ chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223;
}
+
+ chip->ioh_type = id->driver_data;
pci_set_drvdata(pdev, chip);
return 0;
@@ -729,6 +832,8 @@ static int pch_phub_resume(struct pci_dev *pdev)
static struct pci_device_id pch_phub_pcidev_id[] = {
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PCH1_PHUB), 1, },
{ 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, },
{ }
};
MODULE_DEVICE_TABLE(pci, pch_phub_pcidev_id);
@@ -755,5 +860,5 @@ static void __exit pch_phub_pci_exit(void)
module_init(pch_phub_pci_init);
module_exit(pch_phub_pci_exit);
-MODULE_DESCRIPTION("PCH Packet Hub PCI Driver");
+MODULE_DESCRIPTION("Intel EG20T PCH/OKI SEMICONDUCTOR IOH(ML7213/ML7223) PHUB");
MODULE_LICENSE("GPL");
--
1.7.4
--
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