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| author | Chen-Yu Tsai <wens@csie.org> | 2016-01-06 15:13:07 +0800 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2016-01-26 16:20:05 +0100 |
| commit | ed80584f3087f8d4da996cddd9807fc90f3de06c (patch) | |
| tree | 774b96da536519157b0280342229fbdb4478a85d /arch/arm/include/asm/arch-sunxi | |
| parent | 5823664fb84612ef511136b66059710cccd71bed (diff) | |
| download | talos-obmc-uboot-ed80584f3087f8d4da996cddd9807fc90f3de06c.tar.gz talos-obmc-uboot-ed80584f3087f8d4da996cddd9807fc90f3de06c.zip | |
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>
Diffstat (limited to 'arch/arm/include/asm/arch-sunxi')
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/clock.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/clock_sun6i.h | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/clock.h b/arch/arm/include/asm/arch-sunxi/clock.h index 8ca58ae521..6c0573fe58 100644 --- a/arch/arm/include/asm/arch-sunxi/clock.h +++ b/arch/arm/include/asm/arch-sunxi/clock.h @@ -30,6 +30,7 @@ int clock_init(void); int clock_twi_onoff(int port, int state); void clock_set_de_mod_clock(u32 *clk_cfg, unsigned int hz); void clock_init_safe(void); +void clock_init_sec(void); void clock_init_uart(void); #endif diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h index 5c76275112..554d8589ed 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 @@ struct sunxi_ccm_reg { 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 @@ struct sunxi_ccm_reg { #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); |
