iPod Classic: disable IRAM1

On Classic, IRAM1 (second 128Kb of a total of 256KB available IRAM) is
slower than DRAM. Codecs that actually are using regions of IRAM1 runs
faster when DRAM is used, so IRAM1 is disabled and only IRAM0 remains
enabled: 48KB for core and 80KB for codecs/plugins.

The next test_codec results shows how decode time is decreased:

file           boosted     unboosted
*.ra           ~1.5%       ~0.5%
*.mpc          ~21%        ~4.5%
*.ogg          ~0.5%       ~0%
nero_he*.m4a   ~8%         ~1%
nero*.m4a      ~25%        ~7%
wmapro*.wma    ~4.5%       ~0%
wma*.wma       ~25%        ~7%

In addition there is a small power save when IRAM1 HW is disabled.

Change-Id: I102adee11458e82037f23076d5d5956e23235de8

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/rbcodec/codecs/libmusepack/mpcdec.h b/lib/rbcodec/codecs/libmusepack/mpcdec.h
index 02003cb01b..24c06bc4a0 100644
--- a/lib/rbcodec/codecs/libmusepack/mpcdec.h
+++ b/lib/rbcodec/codecs/libmusepack/mpcdec.h
@@ -58,7 +58,7 @@ extern "C" {
 /* Keep the data arrays of bitsreadr.c in IRAM. */
 #define ICONST_ATTR_MPC_BITSREADER ICONST_ATTR
 
-#elif (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024)
+#elif (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024) || (CONFIG_CPU == S5L8702)
 /* Enough IRAM to move additional data and code to it. */
 #define IBSS_ATTR_MPC_LARGE_IRAM   IBSS_ATTR
 #define ICODE_ATTR_MPC_LARGE_IRAM  ICODE_ATTR
@@ -70,7 +70,7 @@ extern "C" {
  * sv7/sv8 bitstream demuxing into IRAM. This config is faster. */
 #define ICONST_ATTR_MPC_BITSREADER
 
-#elif defined(CPU_S5L870X)
+#elif (CONFIG_CPU == S5L8700) || (CONFIG_CPU == S5L8701)
 /* Enough IRAM to move additional data and code to it. */
 #define IBSS_ATTR_MPC_LARGE_IRAM   IBSS_ATTR
 #define ICODE_ATTR_MPC_LARGE_IRAM  ICODE_ATTR