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mx25: properly initialize clocks 

This patch disables all unnecessary clock in mx25_clocks_init() to make a clean
start, the same as is being done for the rest of the i.MX chips.

This patch was tested on i.MX25 PDK.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Baruch Siach 2010-01-25 12:58:20 +02:00 committed by Sascha Hauer
parent fadc095622
commit 828df43f13
1 changed files with 8 additions and 0 deletions
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8
arch/arm/mach-mx25/clock.c
View File

@ -218,6 +218,14 @@ int __init mx25_clocks_init(void)
for (i = 0; i < ARRAY_SIZE(lookups); i++)
clkdev_add(&lookups[i]);
/* Turn off all clocks except the ones we need to survive, namely:
* EMI, GPIO1-3 (CCM_CGCR1[18:16]), GPT1, IOMUXC (CCM_CGCR1[27]), IIM,
* SCC
*/
__raw_writel((1 << 19), CRM_BASE + CCM_CGCR0);
__raw_writel((0xf << 16) | (3 << 26), CRM_BASE + CCM_CGCR1);
__raw_writel((1 << 5), CRM_BASE + CCM_CGCR2);
mxc_timer_init(&gpt_clk, MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
return 0;