From mboxrd@z Thu Jan 1 00:00:00 1970 From: Scott Wood Date: Mon, 19 Apr 2010 15:41:00 -0500 Subject: [U-Boot] [PATCH 3/3] mpc83xx: turn on icache in core initialization to improve u-boot boot time In-Reply-To: References: <20100415173609.e701a08b.kim.phillips@freescale.com> Message-ID: <4BCCBFDC.8050606@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Timur Tabi wrote: > On Thu, Apr 15, 2010 at 5:36 PM, Kim Phillips > wrote: > >> #define CONFIG_SYS_HID0_FINAL (HID0_ENABLE_MACHINE_CHECK | \ >> - HID0_ENABLE_DYNAMIC_POWER_MANAGMENT) >> + HID0_ENABLE_INSTRUCTION_CACHE | \ >> + HID0_ENABLE_DYNAMIC_POWER_MANAGMENT) > > What was so special about the 8349ITX that icache() didn't work? > You're changing the HDI0 values for all of the 83xx boards, but AFAIK, > only the ITX had this problem. All 83xx boards had the performance problem of not enabling icache until after relocation. -Scott