sunxi: Support H3 CCU security switches
H3's CCU includes some switches which disable non-secure access to some
of the more critical clock controls, such as MBUS, PLLs, and main
platform busses.
Configure them to enable non-secure access.
For now the only SoC that has this feature is the H3. For other
platforms just use a default (weak) empty function so things do
not break.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
index 5c76275..554d858 100644
--- a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
+++ b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
@@ -137,6 +137,8 @@
u32 apb1_reset_cfg; /* 0x2d0 APB1 Reset config */
u32 reserved24;
u32 apb2_reset_cfg; /* 0x2d8 APB2 Reset config */
+ u32 reserved25[5];
+ u32 ccu_sec_switch; /* 0x2f0 CCU Security Switch, H3 only */
};
/* apb2 bit field */
@@ -375,6 +377,11 @@
#define CCM_DE_CTRL_PLL10 (5 << 24)
#define CCM_DE_CTRL_GATE (1 << 31)
+/* CCU security switch, H3 only */
+#define CCM_SEC_SWITCH_MBUS_NONSEC (1 << 2)
+#define CCM_SEC_SWITCH_BUS_NONSEC (1 << 1)
+#define CCM_SEC_SWITCH_PLL_NONSEC (1 << 0)
+
#ifndef __ASSEMBLY__
void clock_set_pll1(unsigned int hz);
void clock_set_pll3(unsigned int hz);