2 files changed, 477 insertions, 0 deletions
diff --git a/plat/xilinx/zynqmp/aarch64/zynqmp_common.c b/plat/xilinx/zynqmp/aarch64/zynqmp_common.c
new file mode 100644
index 0000000..3946e9b
--- /dev/null
+++ b/plat/xilinx/zynqmp/aarch64/zynqmp_common.c
@@ -0,0 +1,391 @@
+/*
+ * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdbool.h>
+#include <string.h>
+
+#include <common/debug.h>
+#include <drivers/generic_delay_timer.h>
+#include <lib/mmio.h>
+#include <lib/xlat_tables/xlat_tables.h>
+#include <plat_ipi.h>
+#include <plat_private.h>
+#include <plat/common/platform.h>
+
+#include "pm_api_sys.h"
+
+/*
+ * Table of regions to map using the MMU.
+ * This doesn't include TZRAM as the 'mem_layout' argument passed to
+ * configure_mmu_elx() will give the available subset of that,
+ */
+const mmap_region_t plat_arm_mmap[] = {
+	{ DEVICE0_BASE, DEVICE0_BASE, DEVICE0_SIZE, MT_DEVICE | MT_RW | MT_SECURE },
+	{ DEVICE1_BASE, DEVICE1_BASE, DEVICE1_SIZE, MT_DEVICE | MT_RW | MT_SECURE },
+	{ CRF_APB_BASE, CRF_APB_BASE, CRF_APB_SIZE, MT_DEVICE | MT_RW | MT_SECURE },
+	{0}
+};
+
+static uint32_t zynqmp_get_silicon_ver(void)
+{
+	static unsigned int ver;
+
+	if (!ver) {
+		ver = mmio_read_32(ZYNQMP_CSU_BASEADDR +
+				   ZYNQMP_CSU_VERSION_OFFSET);
+		ver &= ZYNQMP_SILICON_VER_MASK;
+		ver >>= ZYNQMP_SILICON_VER_SHIFT;
+	}
+
+	return ver;
+}
+
+uint32_t zynqmp_get_uart_clk(void)
+{
+	unsigned int ver = zynqmp_get_silicon_ver();
+
+	if (ver == ZYNQMP_CSU_VERSION_QEMU) {
+		return 133000000;
+	} else {
+		return 100000000;
+	}
+}
+
+#if LOG_LEVEL >= LOG_LEVEL_NOTICE
+static const struct {
+	uint32_t id;
+	uint32_t ver;
+	char *name;
+	bool evexists;
+} zynqmp_devices[] = {
+	{
+		.id = 0x10,
+		.name = "XCZU3EG",
+	},
+	{
+		.id = 0x10,
+		.ver = 0x2c,
+		.name = "XCZU3CG",
+	},
+	{
+		.id = 0x11,
+		.name = "XCZU2EG",
+	},
+	{
+		.id = 0x11,
+		.ver = 0x2c,
+		.name = "XCZU2CG",
+	},
+	{
+		.id = 0x20,
+		.name = "XCZU5EV",
+		.evexists = true,
+	},
+	{
+		.id = 0x20,
+		.ver = 0x100,
+		.name = "XCZU5EG",
+		.evexists = true,
+	},
+	{
+		.id = 0x20,
+		.ver = 0x12c,
+		.name = "XCZU5CG",
+	},
+	{
+		.id = 0x21,
+		.name = "XCZU4EV",
+		.evexists = true,
+	},
+	{
+		.id = 0x21,
+		.ver = 0x100,
+		.name = "XCZU4EG",
+		.evexists = true,
+	},
+	{
+		.id = 0x21,
+		.ver = 0x12c,
+		.name = "XCZU4CG",
+	},
+	{
+		.id = 0x30,
+		.name = "XCZU7EV",
+		.evexists = true,
+	},
+	{
+		.id = 0x30,
+		.ver = 0x100,
+		.name = "XCZU7EG",
+		.evexists = true,
+	},
+	{
+		.id = 0x30,
+		.ver = 0x12c,
+		.name = "XCZU7CG",
+	},
+	{
+		.id = 0x38,
+		.name = "XCZU9EG",
+	},
+	{
+		.id = 0x38,
+		.ver = 0x2c,
+		.name = "XCZU9CG",
+	},
+	{
+		.id = 0x39,
+		.name = "XCZU6EG",
+	},
+	{
+		.id = 0x39,
+		.ver = 0x2c,
+		.name = "XCZU6CG",
+	},
+	{
+		.id = 0x40,
+		.name = "XCZU11EG",
+	},
+	{
+		.id = 0x50,
+		.name = "XCZU15EG",
+	},
+	{
+		.id = 0x58,
+		.name = "XCZU19EG",
+	},
+	{
+		.id = 0x59,
+		.name = "XCZU17EG",
+	},
+	{
+		.id = 0x60,
+		.name = "XCZU28DR",
+	},
+	{
+		.id = 0x61,
+		.name = "XCZU21DR",
+	},
+	{
+		.id = 0x62,
+		.name = "XCZU29DR",
+	},
+	{
+		.id = 0x63,
+		.name = "XCZU23DR",
+	},
+	{
+		.id = 0x64,
+		.name = "XCZU27DR",
+	},
+	{
+		.id = 0x65,
+		.name = "XCZU25DR",
+	},
+	{
+		.id = 0x66,
+		.name = "XCZU39DR",
+	},
+	{
+		.id = 0x7d,
+		.name = "XCZU43DR",
+	},
+	{
+		.id = 0x78,
+		.name = "XCZU46DR",
+	},
+	{
+		.id = 0x7f,
+		.name = "XCZU47DR",
+	},
+	{
+		.id = 0x7b,
+		.name = "XCZU48DR",
+	},
+	{
+		.id = 0x7e,
+		.name = "XCZU49DR",
+	},
+};
+
+#define ZYNQMP_PL_STATUS_BIT	9
+#define ZYNQMP_PL_STATUS_MASK	BIT(ZYNQMP_PL_STATUS_BIT)
+#define ZYNQMP_CSU_VERSION_MASK	~(ZYNQMP_PL_STATUS_MASK)
+
+#define SILICON_ID_XCK24	0x4714093U
+#define SILICON_ID_XCK26	0x4724093U
+
+static char *zynqmp_get_silicon_idcode_name(void)
+{
+	uint32_t id, ver, chipid[2];
+	size_t i, j, len;
+	const char *name = "EG/EV";
+
+#ifdef IMAGE_BL32
+	/*
+	 * For BL32, get the chip id info directly by reading corresponding
+	 * registers instead of making pm call. This has limitation
+	 * that these registers should be configured to have access
+	 * from APU which is default case.
+	 */
+	chipid[0] = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_IDCODE_OFFSET);
+	chipid[1] = mmio_read_32(EFUSE_BASEADDR + EFUSE_IPDISABLE_OFFSET);
+#else
+	if (pm_get_chipid(chipid) != PM_RET_SUCCESS) {
+		return "XCZUUNKN";
+	}
+#endif
+
+	id = chipid[0] & (ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK |
+			  ZYNQMP_CSU_IDCODE_SVD_MASK);
+	id >>= ZYNQMP_CSU_IDCODE_SVD_SHIFT;
+	ver = chipid[1] >> ZYNQMP_EFUSE_IPDISABLE_SHIFT;
+
+	for (i = 0; i < ARRAY_SIZE(zynqmp_devices); i++) {
+		if (zynqmp_devices[i].id == id &&
+		    zynqmp_devices[i].ver == (ver & ZYNQMP_CSU_VERSION_MASK)) {
+			break;
+		}
+	}
+
+	if (i >= ARRAY_SIZE(zynqmp_devices)) {
+		switch (chipid[0]) {
+		case SILICON_ID_XCK24:
+			return "XCK24";
+		case SILICON_ID_XCK26:
+			return "XCK26";
+		default:
+			return "XCZUUNKN";
+		}
+	}
+
+	if (!zynqmp_devices[i].evexists) {
+		return zynqmp_devices[i].name;
+	}
+
+	if ((ver & ZYNQMP_PL_STATUS_MASK) != 0U) {
+		return zynqmp_devices[i].name;
+	}
+
+	len = strlen(zynqmp_devices[i].name) - 2;
+	for (j = 0; j < strlen(name); j++) {
+		zynqmp_devices[i].name[len] = name[j];
+		len++;
+	}
+	zynqmp_devices[i].name[len] = '\0';
+
+	return zynqmp_devices[i].name;
+}
+
+static unsigned int zynqmp_get_rtl_ver(void)
+{
+	uint32_t ver;
+
+	ver = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_VERSION_OFFSET);
+	ver &= ZYNQMP_RTL_VER_MASK;
+	ver >>= ZYNQMP_RTL_VER_SHIFT;
+
+	return ver;
+}
+
+static char *zynqmp_print_silicon_idcode(void)
+{
+	uint32_t id, maskid, tmp;
+
+	id = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_IDCODE_OFFSET);
+
+	tmp = id;
+	tmp &= ZYNQMP_CSU_IDCODE_XILINX_ID_MASK |
+	       ZYNQMP_CSU_IDCODE_FAMILY_MASK;
+	maskid = ZYNQMP_CSU_IDCODE_XILINX_ID << ZYNQMP_CSU_IDCODE_XILINX_ID_SHIFT |
+		 ZYNQMP_CSU_IDCODE_FAMILY << ZYNQMP_CSU_IDCODE_FAMILY_SHIFT;
+	if (tmp != maskid) {
+		ERROR("Incorrect XILINX IDCODE 0x%x, maskid 0x%x\n", id, maskid);
+		return "UNKN";
+	}
+	VERBOSE("Xilinx IDCODE 0x%x\n", id);
+	return zynqmp_get_silicon_idcode_name();
+}
+
+static uint32_t zynqmp_get_ps_ver(void)
+{
+	uint32_t ver = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_VERSION_OFFSET);
+
+	ver &= ZYNQMP_PS_VER_MASK;
+	ver >>= ZYNQMP_PS_VER_SHIFT;
+
+	return ver + 1U;
+}
+
+static void zynqmp_print_platform_name(void)
+{
+	uint32_t ver = zynqmp_get_silicon_ver();
+	uint32_t rtl = zynqmp_get_rtl_ver();
+	char *label = "Unknown";
+
+	switch (ver) {
+	case ZYNQMP_CSU_VERSION_QEMU:
+		label = "QEMU";
+		break;
+	case ZYNQMP_CSU_VERSION_SILICON:
+		label = "silicon";
+		break;
+	default:
+		/* Do nothing in default case */
+		break;
+	}
+
+	VERBOSE("TF-A running on %s/%s at 0x%x\n",
+		zynqmp_print_silicon_idcode(), label, BL31_BASE);
+	VERBOSE("TF-A running on v%d/RTL%d.%d\n",
+	       zynqmp_get_ps_ver(), (rtl & 0xf0) >> 4, rtl & 0xf);
+}
+#else
+static inline void zynqmp_print_platform_name(void) { }
+#endif
+
+uint32_t zynqmp_get_bootmode(void)
+{
+	uint32_t r;
+	unsigned int ret;
+
+	ret = pm_mmio_read(CRL_APB_BOOT_MODE_USER, &r);
+
+	if (ret != PM_RET_SUCCESS) {
+		r = mmio_read_32(CRL_APB_BOOT_MODE_USER);
+	}
+
+	return r & CRL_APB_BOOT_MODE_MASK;
+}
+
+void zynqmp_config_setup(void)
+{
+	uint64_t counter_freq;
+
+	/* Configure IPI data for ZynqMP */
+	zynqmp_ipi_config_table_init();
+
+	zynqmp_print_platform_name();
+
+	/* Configure counter frequency */
+	counter_freq = read_cntfrq_el0();
+	if (counter_freq == ZYNQMP_DEFAULT_COUNTER_FREQ) {
+		write_cntfrq_el0(plat_get_syscnt_freq2());
+	}
+
+	generic_delay_timer_init();
+}
+
+uint32_t plat_get_syscnt_freq2(void)
+{
+	uint32_t ver = zynqmp_get_silicon_ver();
+
+	if (ver == ZYNQMP_CSU_VERSION_QEMU) {
+		return 65000000;
+	} else {
+		return mmio_read_32(IOU_SCNTRS_BASEFREQ);
+	}
+}
diff --git a/plat/xilinx/zynqmp/aarch64/zynqmp_helpers.S b/plat/xilinx/zynqmp/aarch64/zynqmp_helpers.S
new file mode 100644
index 0000000..d8439f7
--- /dev/null
+++ b/plat/xilinx/zynqmp/aarch64/zynqmp_helpers.S
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <asm_macros.S>
+#include <drivers/arm/gicv2.h>
+#include <platform_def.h>
+
+	.globl	plat_secondary_cold_boot_setup
+	.globl	plat_is_my_cpu_primary
+	.globl	zynqmp_calc_core_pos
+	.globl	plat_my_core_pos
+	.globl	platform_mem_init
+
+	/* -----------------------------------------------------
+	 * void plat_secondary_cold_boot_setup (void);
+	 *
+	 * This function performs any platform specific actions
+	 * needed for a secondary cpu after a cold reset e.g
+	 * mark the cpu's presence, mechanism to place it in a
+	 * holding pen etc.
+	 * TODO: Should we read the PSYS register to make sure
+	 * that the request has gone through.
+	 * -----------------------------------------------------
+	 */
+func plat_secondary_cold_boot_setup
+	mrs	x0, mpidr_el1
+
+	/* Deactivate the gic cpu interface */
+	ldr	x1, =BASE_GICC_BASE
+	mov	w0, #(IRQ_BYP_DIS_GRP1 | FIQ_BYP_DIS_GRP1)
+	orr	w0, w0, #(IRQ_BYP_DIS_GRP0 | FIQ_BYP_DIS_GRP0)
+	str	w0, [x1, #GICC_CTLR]
+
+	/*
+	 * There is no sane reason to come out of this wfi. This
+	 * cpu will be powered on and reset by the cpu_on pm api
+	 */
+	dsb	sy
+1:
+	no_ret	plat_panic_handler
+endfunc plat_secondary_cold_boot_setup
+
+func plat_is_my_cpu_primary
+	mov	x9, x30
+	bl	plat_my_core_pos
+	cmp	x0, #ZYNQMP_PRIMARY_CPU
+	cset	x0, eq
+	ret	x9
+endfunc plat_is_my_cpu_primary
+
+	/* -----------------------------------------------------
+	 *  unsigned int plat_my_core_pos(void)
+	 *  This function uses the zynqmp_calc_core_pos()
+	 *  definition to get the index of the calling CPU.
+	 * -----------------------------------------------------
+	 */
+func plat_my_core_pos
+	mrs	x0, mpidr_el1
+	b	zynqmp_calc_core_pos
+endfunc plat_my_core_pos
+
+	/* -----------------------------------------------------
+	 *  unsigned int zynqmp_calc_core_pos(u_register_t mpidr)
+	 *  Helper function to calculate the core position.
+	 *  With this function: CorePos = (ClusterId * 4) +
+	 *  				  CoreId
+	 * -----------------------------------------------------
+	 */
+func zynqmp_calc_core_pos
+	and	x1, x0, #MPIDR_CPU_MASK
+	and	x0, x0, #MPIDR_CLUSTER_MASK
+	add	x0, x1, x0, LSR #6
+	ret
+endfunc zynqmp_calc_core_pos
+
+	/* ---------------------------------------------------------------------
+	 * We don't need to carry out any memory initialization on ARM
+	 * platforms. The Secure RAM is accessible straight away.
+	 * ---------------------------------------------------------------------
+	 */
+func platform_mem_init
+	ret
+endfunc platform_mem_init