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 <ma...@denx.de>
Cc: Fabio Estevam <fabio.este...@freescale.com>
Cc: Otavio Salvador <ota...@ossystems.com.br>
Cc: Stefano Babic <sba...@denx.de>
---
arch/arm/cpu/arm926ejs/mxs/spl_power_init.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
index be44c22..e9d6302 100644
--- a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
+++ b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
@@ -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();
--
1.7.10.4
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