diff options
| -rw-r--r-- | drivers/misc/pch_phub.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c index 1dd18f500730..e42bdc90fa27 100644 --- a/drivers/misc/pch_phub.c +++ b/drivers/misc/pch_phub.c @@ -58,6 +58,7 @@ /* CM-iTC */ #define CLKCFG_UART_48MHZ (1 << 16) +#define CLKCFG_UART_25MHZ (2 << 16) #define CLKCFG_BAUDDIV (2 << 20) #define CLKCFG_PLL2VCO (8 << 9) #define CLKCFG_UARTCLKSEL (1 << 18) @@ -748,6 +749,16 @@ static int pch_phub_probe(struct pci_dev *pdev, 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; + + /* quirk for MIPS Boston platform */ + if (pdev->dev.of_node) { + if (of_machine_is_compatible("img,boston")) { + pch_phub_read_modify_write_reg(chip, + (unsigned int)CLKCFG_REG_OFFSET, + CLKCFG_UART_25MHZ, + CLKCFG_UART_MASK); + } + } } else if (id->driver_data == 2) { /* ML7213 IOH */ ret = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr); if (ret) |