Pratap Nirujogi | 6e75991 | 2018-01-17 17:51:17 +0530 | [diff] [blame^] | 1 | * Qualcomm Technologies, Inc. MSM EEPROM |
| 2 | |
| 3 | EEPROM is an one time programmed(OTP) device that stores the calibration data |
| 4 | use for camera sensor. It may either be integrated in the sensor module or in |
| 5 | the sensor itself. As a result, the power, clock and GPIOs may be the same as |
| 6 | the camera sensor. The following describes the page block map, power supply, |
| 7 | clock, GPIO and power on sequence properties of the EEPROM device. |
| 8 | |
| 9 | Required properties if probe happens from camera daemon: |
| 10 | - cell-index: eeprom hardware core index |
| 11 | - compatible : |
| 12 | - "qcom,eeprom" |
| 13 | - reg : offset of eeprom device registers. |
| 14 | - qcom,cci-master : should specify the cci core index that eeprom use. |
| 15 | - cam_vio-supply : should contain regulator to be used for the IO vdd. |
| 16 | - qcom,cam-vreg-name : should specify the regulator name to be used for |
| 17 | this eeprom. |
| 18 | - qcom,cam-vreg-type : should specify the regulator type to be used for |
| 19 | this eeprom. |
| 20 | - qcom,cam-vreg-min-voltage : should specify minimum voltage level |
| 21 | for eeprom in uV. |
| 22 | - qcom,cam-vreg-max-voltage : should specify maximum voltage level |
| 23 | for eeprom in uV. |
| 24 | - qcom,cam-vreg-op-mode : should specify current level for eeprom in uA. |
| 25 | - qcom,gpio-no-mux : should specify the gpio mux type. |
| 26 | - gpios : should specify the gpios to be used for the eeprom. |
| 27 | - qcom,gpio-reset : should specify the reset gpio index. |
| 28 | - qcom,gpio-standby : should specify the standby gpio index. |
| 29 | - qcom,gpio-req-tbl-num : should specify the gpio table index. |
| 30 | - qcom,gpio-req-tbl-flags : should specify the gpio functions. |
| 31 | - qcom,gpio-req-tbl-label : should specify the gpio labels. |
| 32 | - qcom,cam-power-seq-type : should specify the power on sequence types. |
| 33 | - qcom,cam-power-seq-val : should specify the power on sequence values. |
| 34 | - qcom,cam-power-seq-cfg-val : should specify the power on sequence config |
| 35 | values. |
| 36 | - qcom,cam-power-seq-delay : should specify the power on sequence delay |
| 37 | time in ms. |
| 38 | |
| 39 | Optional properties: |
| 40 | - cam_vdig-supply : should contain regulator to be used for the digital vdd. |
| 41 | |
| 42 | |
| 43 | |
| 44 | Example: |
| 45 | |
| 46 | eeprom0: qcom,eeprom@60 { |
| 47 | cell-index = <0>; |
| 48 | reg = <0x60 0x0>; |
| 49 | compatible = "qcom,eeprom"; |
| 50 | qcom,cci-master = <0>; |
| 51 | cam_vdig-supply = <&pm8226_l5>; |
| 52 | cam_vio-supply = <&pm8226_lvs1>; |
| 53 | qcom,cam-vreg-name = "cam_vdig", "cam_vio"; |
| 54 | qcom,cam-vreg-type = <0 1>; |
| 55 | qcom,cam-vreg-min-voltage = <1200000 0>; |
| 56 | qcom,cam-vreg-max-voltage = <1200000 0>; |
| 57 | qcom,cam-vreg-op-mode = <200000 0>; |
| 58 | qcom,gpio-no-mux = <0>; |
| 59 | gpios = <&msmgpio 26 0>, |
| 60 | <&msmgpio 37 0>, |
| 61 | <&msmgpio 36 0>; |
| 62 | qcom,gpio-reset = <1>; |
| 63 | qcom,gpio-standby = <2>; |
| 64 | qcom,gpio-req-tbl-num = <0 1 2>; |
| 65 | qcom,gpio-req-tbl-flags = <1 0 0>; |
| 66 | qcom,gpio-req-tbl-label = "CAMIF_MCLK", |
| 67 | "CAM_RESET1", |
| 68 | "CAM_STANDBY"; |
| 69 | qcom,cam-power-seq-type = "sensor_vreg", |
| 70 | "sensor_vreg", "sensor_clk", |
| 71 | "sensor_gpio", "sensor_gpio"; |
| 72 | qcom,cam-power-seq-val = "cam_vdig", |
| 73 | "cam_vio", "sensor_cam_mclk", |
| 74 | "sensor_gpio_reset", |
| 75 | "sensor_gpio_standby"; |
| 76 | qcom,cam-power-seq-cfg-val = <1 1 24000000 1 1>; |
| 77 | qcom,cam-power-seq-delay = <1 1 5 5 10>; |
| 78 | }; |
| 79 | |
| 80 | |
| 81 | |
| 82 | Required properties if eeprom probe is kernel probe: |
| 83 | - cell-index: eeprom hardware core index |
| 84 | - compatible : |
| 85 | - "qcom,eeprom" |
| 86 | - reg : offset of eeprom device registers. |
| 87 | - qcom,eeprom-name : should specify relevant names of the eeprom module |
| 88 | library. |
| 89 | - qcom,slave-addr : should specify the slave address of the eeprom. |
| 90 | - qcom,cci-master : should specify the cci core index that eeprom use. |
| 91 | - qcom,num-blocks : should specify the total block number that eeprom contains, |
| 92 | every block should contains page poll and mem. |
| 93 | - qcom,page%d : number %d page size, start address, address type, data, |
| 94 | data type, delay in ms. size 0 stand for non-paged. |
| 95 | - address type : 1 byte, 2 word. |
| 96 | - data type : 1 byte, 2 word. |
| 97 | - qcom,poll%d : number %d poll size, poll reg address, address type, data, |
| 98 | data type, delay in ms. size 0 stand for not used. |
| 99 | - address type : 1 byte, 2 word. |
| 100 | - data type : 1 byte, 2 word. |
| 101 | - qcom,mem%d : number %d memory size, start address, address type, data, |
| 102 | data type, delay in ms. size 0 stand for not used. |
| 103 | - address type : 1 byte, 2 word. |
| 104 | - data type : 1 byte, 2 word. |
| 105 | - cam_vio-supply : should contain regulator to be used for the IO vdd. |
| 106 | - qcom,cam-vreg-name : should specify the regulator name to be used for |
| 107 | this eeprom. |
| 108 | - qcom,cam-vreg-type : should specify the regulator type to be used for |
| 109 | this eeprom. |
| 110 | - qcom,cam-vreg-min-voltage : should specify minimum voltage level |
| 111 | for eeprom in uV. |
| 112 | - qcom,cam-vreg-max-voltage : should specify maximum voltage level |
| 113 | for eeprom in uV. |
| 114 | - qcom,cam-vreg-op-mode : should specify current level for eeprom in uA. |
| 115 | - pinctrl-names : should specify the pin control groups followed by |
| 116 | the definition of each group |
| 117 | - qcom,gpio-no-mux : should specify the gpio mux type. |
| 118 | - gpios : should specify the gpios to be used for the eeprom. |
| 119 | - qcom,gpio-reset : should specify the reset gpio index. |
| 120 | - qcom,gpio-standby : should specify the standby gpio index. |
| 121 | - qcom,gpio-req-tbl-num : should specify the gpio table index. |
| 122 | - qcom,gpio-req-tbl-flags : should specify the gpio functions. |
| 123 | - qcom,gpio-req-tbl-label : should specify the gpio labels. |
| 124 | - qcom,cam-power-seq-type : should specify the power on sequence types. |
| 125 | - qcom,cam-power-seq-val : should specify the power on sequence values. |
| 126 | - qcom,cam-power-seq-cfg-val : should specify the power on sequence config |
| 127 | values. |
| 128 | - qcom,cam-power-seq-delay : should specify the power on sequence delay |
| 129 | time in ms. |
| 130 | |
| 131 | Optional properties: |
| 132 | - qcom,pageen%d : number %d page enable reg size, start address, address type, |
| 133 | data, data type, delay in ms. size 0 stand for not used. |
| 134 | - cam_vdig-supply : should contain regulator to be used for the digital vdd. |
| 135 | - qcom,saddr%d : property should specify the slave address for block (%d). |
| 136 | - qcom,i2c-freq-mode : property should specify the I2C speed mode. |
| 137 | |
| 138 | Optional properties -EEPROM Camera Multimodule |
| 139 | - qcom,cmm-data-support - Camera MultiModule data capability flag. |
| 140 | - qcom,cmm-data-compressed - Camera MultiModule data compression flag. |
| 141 | - qcom,cmm-data-offset - Camera MultiModule data start offset. |
| 142 | - qcom,cmm-data-size - Camera MultiModule data size. |
| 143 | |
| 144 | |
| 145 | |
| 146 | Example: |
| 147 | |
| 148 | eeprom0: qcom,eeprom@60 { |
| 149 | cell-index = <0>; |
| 150 | reg = <0x60 0x0>; |
| 151 | qcom,eeprom-name = "msm_eeprom"; |
| 152 | compatible = "qcom,eeprom"; |
| 153 | qcom,slave-addr = <0x60>; |
| 154 | qcom,cci-master = <0>; |
| 155 | qcom,num-blocks = <2>; |
| 156 | qcom,page0 = <1 0x0100 2 0x01 1 1>; |
| 157 | qcom,poll0 = <0 0x0 2 0 1 1>; |
| 158 | qcom,mem0 = <0 0x0 2 0 1 0>; |
| 159 | qcom,page1 = <1 0x0200 2 0x8 1 1>; |
| 160 | qcom,pageen1 = <1 0x0202 2 0x01 1 10>; |
| 161 | qcom,poll1 = <0 0x0 2 0 1 1>; |
| 162 | qcom,mem1 = <32 0x3000 2 0 1 0>; |
| 163 | qcom,saddr1 = <0x62>; |
| 164 | |
| 165 | qcom,cmm-data-support; |
| 166 | qcom,cmm-data-compressed; |
| 167 | qcom,cmm-data-offset = <0>; |
| 168 | qcom,cmm-data-size = <0>; |
| 169 | |
| 170 | cam_vdig-supply = <&pm8226_l5>; |
| 171 | cam_vio-supply = <&pm8226_lvs1>; |
| 172 | qcom,cam-vreg-name = "cam_vdig", "cam_vio"; |
| 173 | qcom,cam-vreg-type = <0 1>; |
| 174 | qcom,cam-vreg-min-voltage = <1200000 0>; |
| 175 | qcom,cam-vreg-max-voltage = <1200000 0>; |
| 176 | qcom,cam-vreg-op-mode = <200000 0>; |
| 177 | qcom,gpio-no-mux = <0>; |
| 178 | gpios = <&msmgpio 26 0>, |
| 179 | <&msmgpio 37 0>, |
| 180 | <&msmgpio 36 0>; |
| 181 | qcom,gpio-reset = <1>; |
| 182 | qcom,gpio-standby = <2>; |
| 183 | qcom,gpio-req-tbl-num = <0 1 2>; |
| 184 | qcom,gpio-req-tbl-flags = <1 0 0>; |
| 185 | qcom,gpio-req-tbl-label = "CAMIF_MCLK", |
| 186 | "CAM_RESET1", |
| 187 | "CAM_STANDBY"; |
| 188 | qcom,cam-power-seq-type = "sensor_vreg", |
| 189 | "sensor_vreg", "sensor_clk", |
| 190 | "sensor_gpio", "sensor_gpio"; |
| 191 | qcom,cam-power-seq-val = "cam_vdig", |
| 192 | "cam_vio", "sensor_cam_mclk", |
| 193 | "sensor_gpio_reset", |
| 194 | "sensor_gpio_standby"; |
| 195 | qcom,cam-power-seq-cfg-val = <1 1 24000000 1 1>; |
| 196 | qcom,cam-power-seq-delay = <1 1 5 5 10>; |
| 197 | }; |
| 198 | |
| 199 | |