hwstub: introduce lua code for the STMP and Creative ZEN V/Mozaic

Change-Id: Ice5f509a2e0d2114436d4760f338b9203ef96691

utils/hwstub/tools/lua/stmp.lua

@@ -0,0 +1,78 @@
+---
+--- Chip Identification
+---
+
+STMP = { info = {} }
+
+local h = HELP:create_topic("STMP")
+h:add("This table contains the abstraction of the different device blocks for the STMP.")
+h:add("It allows one to use higher-level primitives rather than poking at register directly.")
+h:add("Furthermore, it tries as much as possible to hide the differences between the different STMP families.")
+
+local function identify(name, family, desc)
+    STMP.chipid = hwstub.dev.stmp.chipid
+    STMP.info.chip = name
+    STMP.info.revision = "TA" .. tostring(hwstub.dev.stmp.rev+1)
+    STMP.desc = desc
+    STMP.family = family
+    print("Chip identified as " .. name ..", ROM " .. STMP.info.revision)
+    if not hwstub.soc:select(desc) then
+        print("Looking for soc " .. desc .. ": not found. Please load a soc by hand.")
+    end
+end
+
+local hh = h:create_topic("is_imx233")
+hh:add("STMP.is_imx233() returns true if the chip ID reports a i.MX233")
+
+function STMP.is_imx233()
+    return hwstub.dev.stmp.chipid == 0x3780
+end
+
+hh = h:create_topic("is_stmp3700")
+hh:add("STMP.is_stmp3700() returns true if the chip ID reports a STMP3700")
+
+function STMP.is_stmp3700()
+    return hwstub.dev.stmp.chipid == 0x3700
+end
+
+hh = h:create_topic("is_stmp3770")
+hh:add("STMP.is_stmp3770() returns true if the chip ID reports a STMP3770")
+
+function STMP.is_stmp3770()
+    return hwstub.dev.stmp.chipid == 0x37b0
+end
+
+hh = h:create_topic("is_stmp3600")
+hh:add("STMP.is_stmp3600() returns true if the chip ID reports a STMP36xx")
+
+function STMP.is_stmp3600()
+    return hwstub.dev.stmp.chipid >= 0x3600 and hwstub.dev.stmp.chipid < 0x3700
+end
+
+if STMP.is_imx233() then
+    identify("STMP3780 (aka i.MX233)", "imx233", "imx233")
+elseif STMP.is_stmp3700() then
+    identify("STMP3700", "stmp3700", "stmp3700")
+elseif STMP.is_stmp3770() then
+    identify("STMP3770", "stmp3770", "stmp3700")
+elseif STMP.is_stmp3600() then
+    identify("STMP3600", "stmp3600", "stmp3600")
+else
+    print(string.format("Unable to identify this chip as a STMP: chipid=0x%x", hwstub.dev.stmp.chipid));
+end
+
+hh = h:create_topic("debug")
+hh:add("STMP.debug(...) prints some debug output if STMP.debug_on is true and does nothing otherwise.")
+
+STMP.debug_on = false
+
+function STMP.debug(...)
+    if STMP.debug_on then print(...) end
+end
+
+if STMP.info.chip ~= nil then
+    require "stmp/digctl"
+    require "stmp/pinctrl"
+    require "stmp/lcdif"
+    require "stmp/pwm"
+end