brain-hackers_pepepper-mirror/u-boot-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/u-boot-brain synced 2024-07-09 12:46:17 +09:00
Code Issues Projects Releases Wiki Activity

mxs: Add function to ungate the power block on MX23

Browse Source 
The power block on MX23 must first be ungated before it can be operated.
Add function to MXS power init that ungates it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Marek Vasut 2013-01-11 03:19:17 +00:00 committed by Stefano Babic
parent 1a3c5ffe4f
commit 7788bf067d
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
View File

@ -881,11 +881,23 @@ static void mxs_setup_batt_detect(void)
early_delay(10);
}
static void mxs_ungate_power(void)
{
#ifdef CONFIG_MX23
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
writel(POWER_CTRL_CLKGATE, &power_regs->hw_power_ctrl_clr);
#endif
}
void mxs_power_init(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
mxs_ungate_power();
mxs_power_clock2xtal();
mxs_power_clear_auto_restart();
mxs_power_set_linreg();