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);
+}
diff --git a/plat/rockchip/rk3399/drivers/secure/secure.h b/plat/rockchip/rk3399/drivers/secure/secure.h
new file mode 100644
index 0000000..6eb2237
--- /dev/null
+++ b/plat/rockchip/rk3399/drivers/secure/secure.h
@@ -0,0 +1,126 @@
+/*
+ * 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.
+ */
+
+#ifndef __PLAT_ROCKCHIP_RK3399_DRIVER_SECURE_H__
+#define __PLAT_ROCKCHIP_RK3399_DRIVER_SECURE_H__
+
+/**************************************************
+ * sgrf reg, offset
+ **************************************************/
+#define SGRF_SOC_CON0_1(n) (0xc000 + (n) * 4)
+#define SGRF_SOC_CON3_7(n) (0xe00c + ((n) - 3) * 4)
+#define SGRF_SOC_CON8_15(n) (0x8020 + ((n) - 8) * 4)
+#define SGRF_SOC_CON(n) (n < 3 ? SGRF_SOC_CON0_1(n) :\
+ (n < 8 ? SGRF_SOC_CON3_7(n) :\
+ SGRF_SOC_CON8_15(n)))
+
+#define SGRF_PMU_SLV_CON0_1(n) (0xc240 + ((n) - 0) * 4)
+#define SGRF_SLV_SECURE_CON0_4(n) (0xe3c0 + ((n) - 0) * 4)
+#define SGRF_DDRRGN_CON0_16(n) ((n) * 4)
+#define SGRF_DDRRGN_CON20_34(n) (0x50 + ((n) - 20) * 4)
+
+/* All of master in ns */
+#define SGRF_SOC_ALLMST_NS 0xffff
+
+/* security config for slave */
+#define SGRF_SLV_S_WMSK 0xffff0000
+#define SGRF_SLV_S_ALL_NS 0x0
+
+/* security config pmu slave ip */
+/* All of slaves is ns */
+#define SGRF_PMU_SLV_S_NS BIT_WITH_WMSK(0)
+/* slaves secure attr is configed */
+#define SGRF_PMU_SLV_S_CFGED WMSK_BIT(0)
+#define SGRF_PMU_SLV_CRYPTO1_NS WMSK_BIT(1)
+
+#define SGRF_PMUSRAM_S BIT(8)
+
+/* ddr region */
+#define SGRF_DDR_RGN_0_16_WMSK 0x0fff /* DDR RGN 0~16 size mask */
+
+#define SGRF_DDR_RGN_DPLL_CLK BIT_WITH_WMSK(15) /* DDR PLL output clock */
+#define SGRF_DDR_RGN_RTC_CLK BIT_WITH_WMSK(14) /* 32K clock for DDR PLL */
+
+/* All security of the DDR RGNs are bypass */
+#define SGRF_DDR_RGN_BYPS BIT_WITH_WMSK(9)
+/* All security of the DDR RGNs are not bypass */
+#define SGRF_DDR_RGN_NO_BYPS WMSK_BIT(9)
+
+/* The MST access the ddr rgn n with secure attribution */
+#define SGRF_L_MST_S_DDR_RGN(n) BIT_WITH_WMSK((n))
+/* bits[16:8]*/
+#define SGRF_H_MST_S_DDR_RGN(n) BIT_WITH_WMSK((n) + 8)
+
+#define SGRF_PMU_CON0 0x0c100
+#define SGRF_PMU_CON(n) (SGRF_PMU_CON0 + (n) * 4)
+
+/**************************************************
+ * secure timer
+ **************************************************/
+/* chanal0~5 */
+#define STIMER0_CHN_BASE(n) (STIME_BASE + 0x20 * (n))
+/* chanal6~11 */
+#define STIMER1_CHN_BASE(n) (STIME_BASE + 0x8000 + 0x20 * (n))
+
+ /* low 32 bits */
+#define TIMER_END_COUNT0 0x00
+ /* high 32 bits */
+#define TIMER_END_COUNT1 0x04
+
+#define TIMER_CURRENT_VALUE0 0x08
+#define TIMER_CURRENT_VALUE1 0x0C
+
+ /* low 32 bits */
+#define TIMER_INIT_COUNT0 0x10
+ /* high 32 bits */
+#define TIMER_INIT_COUNT1 0x14
+
+#define TIMER_INTSTATUS 0x18
+#define TIMER_CONTROL_REG 0x1c
+
+#define TIMER_EN 0x1
+
+#define TIMER_FMODE (0x0 << 1)
+#define TIMER_RMODE (0x1 << 1)
+
+/**************************************************
+ * secure WDT
+ **************************************************/
+#define PCLK_WDT_CA53_GATE_SHIFT 8
+#define PCLK_WDT_CM0_GATE_SHIFT 10
+
+/* export secure operating APIs */
+void secure_watchdog_disable(void);
+void secure_watchdog_enable(void);
+void secure_timer_init(void);
+void secure_sgrf_init(void);
+void secure_sgrf_ddr_rgn_init(void);
+
+#endif /* __PLAT_ROCKCHIP_RK3399_DRIVER_SECURE_H__ */