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path: root/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
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Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod_44xx_data.c')
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_44xx_data.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index cc9bd106a85..6abc75753e4 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -2594,6 +2594,15 @@ static struct omap_hwmod omap44xx_ipu_hwmod = {
static struct omap_hwmod_class_sysconfig omap44xx_iss_sysc = {
.rev_offs = 0x0000,
.sysc_offs = 0x0010,
+ /*
+ * ISS needs 100 OCP clk cycles delay after a softreset before
+ * accessing sysconfig again.
+ * The lowest frequency at the moment for L3 bus is 100 MHz, so
+ * 1usec delay is needed. Add an x2 margin to be safe (2 usecs).
+ *
+ * TODO: Indicate errata when available.
+ */
+ .srst_udelay = 2,
.sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_RESET_STATUS |
SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET),
.idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |