rockchip: rk3399: Clean up and seprate secure parts from SoC codes
The goal is that make clear the secure and SoC codes. Now cleaning them
will help secure code extensions for RK3399 in the future.
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
diff --git a/plat/rockchip/rk3399/drivers/secure/secure.c b/plat/rockchip/rk3399/drivers/secure/secure.c
new file mode 100644
index 0000000..f2e9ab0
--- /dev/null
+++ b/plat/rockchip/rk3399/drivers/secure/secure.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <arch_helpers.h>
+#include <assert.h>
+#include <debug.h>
+#include <delay_timer.h>
+#include <plat_private.h>
+#include <secure.h>
+#include <soc.h>
+
+static void sgrf_ddr_rgn_global_bypass(uint32_t bypass)
+{
+ if (bypass)
+ /* set bypass (non-secure regions) for whole ddr regions */
+ mmio_write_32(SGRF_BASE + SGRF_DDRRGN_CON0_16(16),
+ SGRF_DDR_RGN_BYPS);
+ else
+ /* cancel bypass for whole ddr regions */
+ mmio_write_32(SGRF_BASE + SGRF_DDRRGN_CON0_16(16),
+ SGRF_DDR_RGN_NO_BYPS);
+}
+
+/**
+ * There are 8 + 1 regions for DDR secure control:
+ * DDR_RGN_0 ~ DDR_RGN_7: Per DDR_RGNs grain size is 1MB
+ * DDR_RGN_X - the memories of exclude DDR_RGN_0 ~ DDR_RGN_7
+ *
+ * DDR_RGN_0 - start address of the RGN0
+ * DDR_RGN_8 - end address of the RGN0
+ * DDR_RGN_1 - start address of the RGN1
+ * DDR_RGN_9 - end address of the RGN1
+ * ...
+ * DDR_RGN_7 - start address of the RGN7
+ * DDR_RGN_15 - end address of the RGN7
+ * DDR_RGN_16 - bit 0 ~ 7 is bitmap for RGN0~7 secure,0: disable, 1: enable
+ * bit 8 is setting for RGNx, the rest of the memory and region
+ * which excludes RGN0~7, 0: disable, 1: enable
+ * bit 9, the global secure configuration via bypass, 0: disable
+ * bypass, 1: enable bypass
+ *
+ * @rgn - the DDR regions 0 ~ 7 which are can be configured.
+ * The @st_mb and @ed_mb indicate the start and end addresses for which to set
+ * the security, and the unit is megabyte. When the st_mb == 0, ed_mb == 0, the
+ * address range 0x0 ~ 0xfffff is secure.
+ *
+ * For example, if we would like to set the range [0, 32MB) is security via
+ * DDR_RGN0, then rgn == 0, st_mb == 0, ed_mb == 31.
+ */
+static void sgrf_ddr_rgn_config(uint32_t rgn,
+ uintptr_t st, uintptr_t ed)
+{
+ uintptr_t st_mb, ed_mb;
+
+ assert(rgn <= 7);
+ assert(st < ed);
+
+ /* check aligned 1MB */
+ assert(st % SIZE_M(1) == 0);
+ assert(ed % SIZE_M(1) == 0);
+
+ st_mb = st / SIZE_M(1);
+ ed_mb = ed / SIZE_M(1);
+
+ /* set ddr region addr start */
+ mmio_write_32(SGRF_BASE + SGRF_DDRRGN_CON0_16(rgn),
+ BITS_WITH_WMASK(st_mb, SGRF_DDR_RGN_0_16_WMSK, 0));
+
+ /* set ddr region addr end */
+ mmio_write_32(SGRF_BASE + SGRF_DDRRGN_CON0_16(rgn + 8),
+ BITS_WITH_WMASK((ed_mb - 1), SGRF_DDR_RGN_0_16_WMSK, 0));
+
+ mmio_write_32(SGRF_BASE + SGRF_DDRRGN_CON0_16(16),
+ BIT_WITH_WMSK(rgn));
+}
+
+void secure_watchdog_disable(void)
+{
+ /**
+ * Disable CA53 and CM0 wdt pclk
+ * BIT[8]: ca53 wdt pclk, 0: enable 1: disable
+ * BIT[10]: cm0 wdt pclk, 0: enable 1: disable
+ */
+ mmio_write_32(SGRF_BASE + SGRF_SOC_CON(3),
+ BIT_WITH_WMSK(PCLK_WDT_CA53_GATE_SHIFT) |
+ BIT_WITH_WMSK(PCLK_WDT_CM0_GATE_SHIFT));
+}
+
+void secure_watchdog_enable(void)
+{
+ /**
+ * Enable CA53 and CM0 wdt pclk
+ * BIT[8]: ca53 wdt pclk, 0: enable 1: disable
+ * BIT[10]: cm0 wdt pclk, 0: enable 1: disable
+ */
+ mmio_write_32(SGRF_BASE + SGRF_SOC_CON(3),
+ WMSK_BIT(PCLK_WDT_CA53_GATE_SHIFT) |
+ WMSK_BIT(PCLK_WDT_CM0_GATE_SHIFT));
+}
+
+void secure_timer_init(void)
+{
+ mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_END_COUNT0, 0xffffffff);
+ mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_END_COUNT1, 0xffffffff);
+
+ mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_INIT_COUNT0, 0x0);
+ mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_INIT_COUNT0, 0x0);
+
+ /* auto reload & enable the timer */
+ mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_CONTROL_REG,
+ TIMER_EN | TIMER_FMODE);
+}
+
+void secure_sgrf_init(void)
+{
+ /* security config for master */
+ mmio_write_32(SGRF_BASE + SGRF_SOC_CON(5),
+ REG_SOC_WMSK | SGRF_SOC_ALLMST_NS);
+ mmio_write_32(SGRF_BASE + SGRF_SOC_CON(6),
+ REG_SOC_WMSK | SGRF_SOC_ALLMST_NS);
+ mmio_write_32(SGRF_BASE + SGRF_SOC_CON(7),
+ REG_SOC_WMSK | SGRF_SOC_ALLMST_NS);
+
+ /* security config for slave */
+ mmio_write_32(SGRF_BASE + SGRF_PMU_SLV_CON0_1(0),
+ SGRF_PMU_SLV_S_CFGED |
+ SGRF_PMU_SLV_CRYPTO1_NS);
+ mmio_write_32(SGRF_BASE + SGRF_PMU_SLV_CON0_1(1),
+ SGRF_SLV_S_WMSK | SGRF_PMUSRAM_S);
+ mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(0),
+ SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+ mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(1),
+ SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+ mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(2),
+ SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+ mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(3),
+ SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+ mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(4),
+ SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+}
+
+void secure_sgrf_ddr_rgn_init(void)
+{
+ sgrf_ddr_rgn_config(0, TZRAM_BASE, TZRAM_SIZE);
+ sgrf_ddr_rgn_global_bypass(0);
+}