lkml.org 
[lkml]   [2007]   [Jun]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch #2 2/6] SM501: initialise SDRAM clock before bus clocks
This init sequence of setting the SDRAM clock before the
bus clock is recommend by Silicon Motion to stop problems
with writes not sticking into registers.

Signed-off-by: Vincent Sanders <vince@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

Index: linux-2.6.21-quilt8/drivers/mfd/sm501.c
===================================================================
--- linux-2.6.21-quilt8.orig/drivers/mfd/sm501.c 2007-06-07 12:12:38.000000000 +0100
+++ linux-2.6.21-quilt8/drivers/mfd/sm501.c 2007-06-07 12:13:03.000000000 +0100
@@ -833,15 +833,15 @@ static void sm501_init_regs(struct sm501
sm501_init_reg(sm, SM501_GPIO31_0_CONTROL, &init->gpio_low);
sm501_init_reg(sm, SM501_GPIO63_32_CONTROL, &init->gpio_high);

- if (init->mclk) {
- dev_info(sm->dev, "setting MCLK to %ld\n", init->mclk);
- sm501_set_clock(sm->dev, SM501_CLOCK_MCLK, init->mclk);
- }
-
if (init->m1xclk) {
dev_info(sm->dev, "setting M1XCLK to %ld\n", init->m1xclk);
sm501_set_clock(sm->dev, SM501_CLOCK_M1XCLK, init->m1xclk);
}
+
+ if (init->mclk) {
+ dev_info(sm->dev, "setting MCLK to %ld\n", init->mclk);
+ sm501_set_clock(sm->dev, SM501_CLOCK_MCLK, init->mclk);
+ }
}

static unsigned int sm501_mem_local[] = {
--
Ben (ben@fluff.org, http://www.fluff.org/)

'a smiley only costs 4 bytes'
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-06-18 23:07    [W:0.074 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site