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-rw-r--r--drivers/misc/pch_phub.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index 98bffc471b17..5dd0b921bfc6 100644
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -27,6 +27,7 @@
#include <linux/mutex.h>
#include <linux/if_ether.h>
#include <linux/ctype.h>
+#include <linux/dmi.h>
#define PHUB_STATUS 0x00 /* Status Register offset */
#define PHUB_CONTROL 0x04 /* Control Register offset */
@@ -46,6 +47,13 @@
#define PCH_MINOR_NOS 1
#define CLKCFG_CAN_50MHZ 0x12000000
#define CLKCFG_CANCLK_MASK 0xFF000000
+#define CLKCFG_UART_MASK 0xFFFFFF
+
+/* CM-iTC */
+#define CLKCFG_UART_48MHZ (1 << 16)
+#define CLKCFG_BAUDDIV (2 << 20)
+#define CLKCFG_PLL2VCO (8 << 9)
+#define CLKCFG_UARTCLKSEL (1 << 18)
/* Macros for ML7213 */
#define PCI_VENDOR_ID_ROHM 0x10db
@@ -618,6 +626,14 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
CLKCFG_CAN_50MHZ,
CLKCFG_CANCLK_MASK);
+ /* quirk for CM-iTC board */
+ if (strstr(dmi_get_system_info(DMI_BOARD_NAME), "CM-iTC"))
+ pch_phub_read_modify_write_reg(chip,
+ (unsigned int)CLKCFG_REG_OFFSET,
+ CLKCFG_UART_48MHZ | CLKCFG_BAUDDIV |
+ CLKCFG_PLL2VCO | CLKCFG_UARTCLKSEL,
+ CLKCFG_UART_MASK);
+
/* set the prefech value */
iowrite32(0x000affaa, chip->pch_phub_base_address + 0x14);
/* set the interrupt delay value */