diff options
| -rw-r--r-- | utils/hwstub/tools/lua/rk27xx.lua | 8 | ||||
| -rw-r--r-- | utils/hwstub/tools/lua/rk27xx/lradc.lua | 12 |
2 files changed, 20 insertions, 0 deletions
diff --git a/utils/hwstub/tools/lua/rk27xx.lua b/utils/hwstub/tools/lua/rk27xx.lua new file mode 100644 index 0000000..2a5bb92 --- /dev/null +++ b/utils/hwstub/tools/lua/rk27xx.lua @@ -0,0 +1,8 @@ +--- +--- Chip Identification +--- + +RK27XX = {} + +hwstub.soc:select("rk27xx") +require 'rk27xx/lcdif' diff --git a/utils/hwstub/tools/lua/rk27xx/lradc.lua b/utils/hwstub/tools/lua/rk27xx/lradc.lua new file mode 100644 index 0000000..943bdac --- /dev/null +++ b/utils/hwstub/tools/lua/rk27xx/lradc.lua @@ -0,0 +1,12 @@ +RK27XX.adc = {} + +function RK27XX.adc.init() + -- setup ADC clock divider to reach max 1MHz + HW.SCU.DIVCON1.write(bit32.replace(HW.SCU.DIVCON1.read(), 49, 10, 8)) +end + +function RK27XX.adc.read(channel) + HW.ADC.CTRL.write(bit32.bor(bit32.lshift(1,4), bit32.lshift(1,3), bit32.band(channel,3))) + -- udelay(20) + return bit32.band(HW.ADC.DATA.read(), 0x3ff) +end |