pp5020: Cache the result of the is_ssd check.

...So we don't look it up on every write.

Change-Id: I85b0abe5032a60588535b401cc719661601807ee

1 files changed, 5 insertions, 1 deletions

diff --git a/firmware/target/arm/pp/ata-pp5020.c b/firmware/target/arm/pp/ata-pp5020.c
index 396e684019..7351215693 100644
--- a/firmware/target/arm/pp/ata-pp5020.c
+++ b/firmware/target/arm/pp/ata-pp5020.c
@@ -106,6 +106,8 @@ static bool dma_boosted = false;
 static bool dma_needs_boost;
 #endif
 
+static int ata_is_ssd = 0;
+
 /* This function sets up registers for 80 Mhz.
    Ultra DMA mode 2 works at 30 Mhz.
  */
@@ -133,6 +135,8 @@ void ata_dma_set_mode(unsigned char mode) {
 #if !defined(IPOD_NANO)
     IDE0_CFG |= 0x20000000; /* >= 50 Mhz */
 #endif
+
+    ata_is_ssd = ata_disk_isssd();
 }
 
 #define IDE_CFG_INTRQ           8
@@ -175,7 +179,7 @@ bool ata_dma_setup(void *addr, unsigned long bytes, bool write) {
     if (write) {
         if ((unsigned long)addr & 3)
             return false;
-        if (!ata_disk_isssd())
+        if (!ata_is_ssd)
             return false;
     }