1 files changed, 103 insertions, 0 deletions
diff --git a/plat/rockchip/px30/drivers/secure/secure.c b/plat/rockchip/px30/drivers/secure/secure.c
new file mode 100644
index 0000000..144f945
--- /dev/null
+++ b/plat/rockchip/px30/drivers/secure/secure.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <ddr_parameter.h>
+#include <plat_private.h>
+#include <secure.h>
+#include <px30_def.h>
+
+/**
+ * There are 8 regions for DDR security control
+ * @rgn - the DDR regions 0 ~ 7 which are can be configured.
+ * @st - start address to set as secure
+ * @sz - length of area to set as secure
+ * The internal unit is megabytes, so memory areas need to be aligned
+ * to megabyte borders.
+ */
+static void secure_ddr_region(uint32_t rgn,
+			      uintptr_t st, size_t sz)
+{
+	uintptr_t ed = st + sz;
+	uintptr_t st_mb, ed_mb;
+	uint32_t val;
+
+	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);
+
+	/* map top and base */
+	mmio_write_32(FIREWALL_DDR_BASE +
+		      FIREWALL_DDR_FW_DDR_RGN(rgn),
+		      RG_MAP_SECURE(ed_mb, st_mb));
+
+	/* enable secure */
+	val = mmio_read_32(FIREWALL_DDR_BASE + FIREWALL_DDR_FW_DDR_CON_REG);
+	val |= BIT(rgn);
+	mmio_write_32(FIREWALL_DDR_BASE +
+		      FIREWALL_DDR_FW_DDR_CON_REG, val);
+}
+
+void secure_timer_init(void)
+{
+	mmio_write_32(STIMER_CHN_BASE(1) + TIMER_CONTROL_REG,
+		      TIMER_DIS);
+
+	mmio_write_32(STIMER_CHN_BASE(1) + TIMER_LOAD_COUNT0, 0xffffffff);
+	mmio_write_32(STIMER_CHN_BASE(1) + TIMER_LOAD_COUNT1, 0xffffffff);
+
+	/* auto reload & enable the timer */
+	mmio_write_32(STIMER_CHN_BASE(1) + TIMER_CONTROL_REG,
+		      TIMER_EN | TIMER_FMODE);
+}
+
+void sgrf_init(void)
+{
+#ifdef PLAT_RK_SECURE_DDR_MINILOADER
+	uint32_t i;
+	struct param_ddr_usage usg;
+
+	/* general secure regions */
+	usg = ddr_region_usage_parse(DDR_PARAM_BASE,
+				     PLAT_MAX_DDR_CAPACITY_MB);
+
+	/* region-0 for TF-A, region-1 for optional OP-TEE */
+	assert(usg.s_nr < 7);
+
+	for (i = 0; i < usg.s_nr; i++)
+		secure_ddr_region(7 - i, usg.s_top[i], usg.s_base[i]);
+#endif
+
+	/* secure the trustzone ram */
+	secure_ddr_region(0, TZRAM_BASE, TZRAM_SIZE);
+
+	/* set all slave ip into no-secure, except stimer */
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON(4), SGRF_SLV_S_ALL_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON(5), SGRF_SLV_S_ALL_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON(6), SGRF_SLV_S_ALL_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON(7), SGRF_SLV_S_ALL_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON(8), 0x00030000);
+
+	/* set master crypto to no-secure, dcf to secure */
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON(3), 0x000f0003);
+
+	/* set DMAC into no-secure */
+	mmio_write_32(SGRF_BASE + SGRF_DMAC_CON(0), DMA_IRQ_BOOT_NS);
+	mmio_write_32(SGRF_BASE + SGRF_DMAC_CON(1), DMA_PERI_CH_NS_15_0);
+	mmio_write_32(SGRF_BASE + SGRF_DMAC_CON(2), DMA_PERI_CH_NS_19_16);
+	mmio_write_32(SGRF_BASE + SGRF_DMAC_CON(3), DMA_MANAGER_BOOT_NS);
+
+	/* soft reset dma before use */
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON(1), DMA_SOFTRST_REQ);
+	udelay(5);
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON(1), DMA_SOFTRST_RLS);
+}