ARM: OMAP: TI81XX: add always-on powerdomain for TI81XX

This patch adds alwon powerdomain support for TI81XX, which is required
for stable functioning of a big number of TI81XX subsystems.
Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Signed-off-by: Paul Walmsley <paul@pwsan.com>

arch/arm/mach-omap2/powerdomains3xxx_data.c

@@ -336,6 +336,13 @@ static struct powerdomain dpll5_pwrdm = {
 	.voltdm		  = { .name = "core" },
 };
 
+static struct powerdomain alwon_81xx_pwrdm = {
+	.name		  = "alwon_pwrdm",
+	.prcm_offs	  = TI81XX_PRM_ALWON_MOD,
+	.pwrsts		  = PWRSTS_OFF_ON,
+	.voltdm		  = { .name = "core" },
+};
+
 static struct powerdomain device_81xx_pwrdm = {
 	.name		  = "device_pwrdm",
 	.prcm_offs	  = TI81XX_PRM_DEVICE_MOD,
@@ -442,6 +449,7 @@ static struct powerdomain *powerdomains_am35x[] __initdata = {
 };
 
 static struct powerdomain *powerdomains_ti81xx[] __initdata = {
+	&alwon_81xx_pwrdm,
 	&device_81xx_pwrdm,
 	&active_816x_pwrdm,
 	&default_816x_pwrdm,

arch/arm/mach-omap2/prcm-common.h

@@ -58,6 +58,7 @@
 #define TI816X_PRM_IVAHD1_MOD			0x0d00
 #define TI816X_PRM_IVAHD2_MOD			0x0e00
 #define TI816X_PRM_SGX_MOD				0x0f00
+#define TI81XX_PRM_ALWON_MOD			0x1800
 
 /* 24XX register bits shared between CM & PRM registers */