diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/cpu/quark/quark.c | 40 | ||||
| -rw-r--r-- | arch/x86/include/asm/arch-quark/quark.h | 14 |
2 files changed, 54 insertions, 0 deletions
diff --git a/arch/x86/cpu/quark/quark.c b/arch/x86/cpu/quark/quark.c index 3ddf079..8b78a86 100644 --- a/arch/x86/cpu/quark/quark.c +++ b/arch/x86/cpu/quark/quark.c @@ -134,6 +134,43 @@ static void quark_usb_early_init(void) msg_port_alt_setbits(MSG_PORT_USB_AFE, USB2_PLL2, 1 << 24); } +static void quark_thermal_early_init(void) +{ + /* The sequence below comes from Quark firmware writer guide */ + + /* thermal sensor mode config */ + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG1, + (1 << 3) | (1 << 4) | (1 << 5), 1 << 5); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG1, + (1 << 8) | (1 << 9) | (1 << 10) | (1 << 11) | + (1 << 12), 1 << 9); + msg_port_alt_setbits(MSG_PORT_SOC_UNIT, TS_CFG1, 1 << 14); + msg_port_alt_clrbits(MSG_PORT_SOC_UNIT, TS_CFG1, 1 << 17); + msg_port_alt_clrbits(MSG_PORT_SOC_UNIT, TS_CFG1, 1 << 18); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG2, 0xffff, 0x011f); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG3, 0xff, 0x17); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG3, + (1 << 8) | (1 << 9), 1 << 8); + msg_port_alt_clrbits(MSG_PORT_SOC_UNIT, TS_CFG3, 0xff000000); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG4, + 0x7ff800, 0xc8 << 11); + + /* thermal monitor catastrophic trip set point (105 celsius) */ + msg_port_clrsetbits(MSG_PORT_RMU, TS_TRIP, 0xff, 155); + + /* thermal monitor catastrophic trip clear point (0 celsius) */ + msg_port_clrsetbits(MSG_PORT_RMU, TS_TRIP, 0xff0000, 50 << 16); + + /* take thermal sensor out of reset */ + msg_port_alt_clrbits(MSG_PORT_SOC_UNIT, TS_CFG4, 1 << 0); + + /* enable thermal monitor */ + msg_port_setbits(MSG_PORT_RMU, TS_MODE, 1 << 15); + + /* lock all thermal configuration */ + msg_port_setbits(MSG_PORT_RMU, RMU_CTRL, (1 << 5) | (1 << 6)); +} + static void quark_enable_legacy_seg(void) { msg_port_setbits(MSG_PORT_HOST_BRIDGE, HMISC2, @@ -173,6 +210,9 @@ int arch_cpu_init(void) /* Initialize USB2 PHY */ quark_usb_early_init(); + /* Initialize thermal sensor */ + quark_thermal_early_init(); + /* Turn on legacy segments (A/B/E/F) decode to system RAM */ quark_enable_legacy_seg(); diff --git a/arch/x86/include/asm/arch-quark/quark.h b/arch/x86/include/asm/arch-quark/quark.h index 338c896..f6009f6 100644 --- a/arch/x86/include/asm/arch-quark/quark.h +++ b/arch/x86/include/asm/arch-quark/quark.h @@ -42,9 +42,17 @@ /* ACPI PBLK Base Address Register */ #define PBLK_BA 0x70 +/* Control Register */ +#define RMU_CTRL 0x71 + /* SPI DMA Base Address Register */ #define SPI_DMA_BA 0x7a +/* Thermal Sensor Register */ +#define TS_MODE 0xb0 +#define TS_TEMP 0xb1 +#define TS_TRIP 0xb2 + /* Port 0x05: Memory Manager Message Port Registers */ /* eSRAM Block Page Control */ @@ -65,6 +73,12 @@ /* Port 0x31: SoC Unit Port Registers */ +/* Thermal Sensor Config */ +#define TS_CFG1 0x31 +#define TS_CFG2 0x32 +#define TS_CFG3 0x33 +#define TS_CFG4 0x34 + /* PCIe Controller Config */ #define PCIE_CFG 0x36 #define PCIE_CTLR_PRI_RST 0x00010000 |