diff options
Diffstat (limited to 'arch/arm/boot/dts/ste-ux500-samsung-janice.dts')
| -rw-r--r-- | arch/arm/boot/dts/ste-ux500-samsung-janice.dts | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/ste-ux500-samsung-janice.dts b/arch/arm/boot/dts/ste-ux500-samsung-janice.dts index 42762bfcd878..e6d4fd0eb5f4 100644 --- a/arch/arm/boot/dts/ste-ux500-samsung-janice.dts +++ b/arch/arm/boot/dts/ste-ux500-samsung-janice.dts @@ -485,7 +485,26 @@ /* CTS/RTS is not used, CTS is repurposed as GPIO */ pinctrl-0 = <&u1rxtx_a_1_default>; pinctrl-1 = <&u1rxtx_a_1_sleep>; - /* FIXME: add a device for the GPS here */ + + gnss { + /* + * The Low Noise Amplifier (LNA) power and enablement is controlled + * autonomously by the GSD4t. + * Janice has a SiRFstarIV-based GSD4t + * Golden has a SiRFstarV 5t-based CSRG05TA03-ICJE-R. + */ + compatible = "csr,gsd4t"; + /* GPS_RSTN on GPIO21 */ + reset-gpios = <&gpio0 21 GPIO_ACTIVE_LOW>; + /* GPS_ON_OFF on GPIO96 */ + sirf,onoff-gpios = <&gpio3 0 GPIO_ACTIVE_HIGH>; + /* GPS_1V8 (VSMPS2) */ + vcc-supply = <&db8500_vsmps2_reg>; + pinctrl-names = "default"; + pinctrl-0 = <&gsd4t_janice_default>; + /* According to /etc/sirfgps.conf */ + current-speed = <460800>; + }; }; /* Debugging console UART connected to TSU6111RSVR (FSA880) */ @@ -504,6 +523,10 @@ pinctrl-1 = <&usb_a_1_sleep>; }; + ab8500_fg { + line-impedance-micro-ohms = <15000>; + }; + regulator { ab8500_ldo_aux1 { /* Used for VDD for sensors */ @@ -941,4 +964,23 @@ }; }; }; + gsd4t { + gsd4t_janice_default: gsd4t_janice { + /* Reset line, start out asserted */ + janice_cfg1 { + pins = "GPIO21_AB3"; + ste,config = <&gpio_out_lo>; + }; + /* GPS_ON_OFF, start out deasserted (off) */ + janice_cfg2 { + pins = "GPIO96_D8"; + ste,config = <&gpio_out_lo>; + }; + /* Unused power enablement line, used in R0.0 and R0.1 boards */ + janice_cfg3 { + pins = "GPIO86_C6"; + ste,config = <&gpio_in_pd>; + }; + }; + }; }; |