target/linux/s3c24xx/patches-2.6.24/1286-fix-glamo-crank-memory-to-90MHz.patch.patch

   1 From 8846830e0f7b5ea2721e3d8b2bd517fa1a11c628 Mon Sep 17 00:00:00 2001
   2 From: Andy Green <andy@openmoko.com>
   3 Date: Thu, 11 Sep 2008 20:38:46 +0800
   4 Subject: [PATCH] fix-glamo-crank-memory-to-90MHz.patch
   5
   6 This changes Glamo memory and now host bus PLL to 90MHz from
   7 80MHz, as recommended by S-Media.  Bandwidth should go up
   8 by 12.5% by this in raw terms anyway.
   9
  10 Signed-off-by: Andy Green <andy@openmoko.com>
  11 ---
  12  drivers/mfd/glamo/glamo-core.c |    9 ++++++---
  13  1 files changed, 6 insertions(+), 3 deletions(-)
  14
  15 diff --git a/drivers/mfd/glamo/glamo-core.c b/drivers/mfd/glamo/glamo-core.c
  16 index b30ec9f..2619c5f 100644
  17 --- a/drivers/mfd/glamo/glamo-core.c
  18 +++ b/drivers/mfd/glamo/glamo-core.c
  19 @@ -729,8 +729,8 @@ static struct glamo_script glamo_init_script[] = {
  20         { GLAMO_REG_CLOCK_MPEG,         0x0000 },
  21  #endif
  22         { GLAMO_REG_PLL_GEN1,           0x05db },       /* 48MHz */
  23 -       { GLAMO_REG_PLL_GEN3,           0x09c3 },       /* 80MHz */
  24 -               { 0xfffd, 0 },
  25 +       { GLAMO_REG_PLL_GEN3,           0x0aba },       /* 90MHz */
  26 +       { 0xfffd, 0 },
  27         /*
  28          * b9 of this register MUST be zero to get any interrupts on INT#
  29          * the other set bits enable all the engine interrupt sources
  30 @@ -745,7 +745,10 @@ static struct glamo_script glamo_init_script[] = {
  31         { 0x212,        0x0000 },
  32         { 0x214,        0x4000 },
  33         { 0x216,        0xf00e },
  34 -       { GLAMO_REG_MEM_TYPE,           0x0874 }, /* 8MB, 16 word pg wr+rd */
  35 +
  36 +       /* S-Media recommended "set tiling mode to 512 mode for memory access
  37 +        * more efficiency when 640x480" */
  38 +       { GLAMO_REG_MEM_TYPE,           0x0c74 }, /* 8MB, 16 word pg wr+rd */
  39         { GLAMO_REG_MEM_GEN,            0xafaf }, /* 63 grants min + max */
  40         /*
  41          * the register below originally 0x0108 makes unreliable Glamo MMC
  42 --
  43 1.5.6.5
  44