From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 11:13:47 +0200
Subject: Adding upstream version 2.8.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 plat/marvell/armada/a8k/common/plat_bl31_setup.c | 148 +++++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 plat/marvell/armada/a8k/common/plat_bl31_setup.c

(limited to 'plat/marvell/armada/a8k/common/plat_bl31_setup.c')

diff --git a/plat/marvell/armada/a8k/common/plat_bl31_setup.c b/plat/marvell/armada/a8k/common/plat_bl31_setup.c
new file mode 100644
index 0000000..db85cce
--- /dev/null
+++ b/plat/marvell/armada/a8k/common/plat_bl31_setup.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <common/debug.h>
+#include <drivers/marvell/mci.h>
+#include <drivers/marvell/mochi/ap_setup.h>
+#include <drivers/marvell/mochi/cp110_setup.h>
+#include <lib/mmio.h>
+
+#include <armada_common.h>
+#include <marvell_plat_priv.h>
+#include <marvell_pm.h>
+#include <mc_trustzone/mc_trustzone.h>
+#include <plat_marvell.h>
+#if MSS_SUPPORT
+#include <mss_ipc_drv.h>
+#include <mss_mem.h>
+#include <mss_defs.h>
+#endif
+
+/* In Armada-8k family AP806/AP807, CP0 connected to PIDI
+ * and CP1 connected to IHB via MCI #0
+ */
+#define MVEBU_MCI0		0
+
+static _Bool pm_fw_running;
+
+/* Set a weak stub for platforms that don't need to configure GPIO */
+#pragma weak marvell_gpio_config
+int marvell_gpio_config(void)
+{
+	return 0;
+}
+
+static void marvell_bl31_mpp_init(int cp)
+{
+	uint32_t reg;
+
+	/* need to do for CP#0 only */
+	if (cp)
+		return;
+
+
+	/*
+	 * Enable CP0 I2C MPPs (MPP: 37-38)
+	 * U-Boot rely on proper MPP settings for I2C EEPROM usage
+	 * (only for CP0)
+	 */
+	reg = mmio_read_32(MVEBU_CP_MPP_REGS(0, 4));
+	mmio_write_32(MVEBU_CP_MPP_REGS(0, 4), reg | 0x2200000);
+}
+
+#if MSS_SUPPORT
+void marvell_bl31_mss_init(void)
+{
+	struct mss_pm_ctrl_block *mss_pm_crtl =
+			(struct mss_pm_ctrl_block *)MSS_SRAM_PM_CONTROL_BASE;
+
+	/* Check that the image was loaded successfully */
+	if (mss_pm_crtl->handshake != HOST_ACKNOWLEDGMENT) {
+		NOTICE("MSS PM is not supported in this build\n");
+		return;
+	}
+
+	/* If we got here it means that the PM firmware is running */
+	pm_fw_running = 1;
+
+	INFO("MSS IPC init\n");
+
+	if (mss_pm_crtl->ipc_state == IPC_INITIALIZED)
+		mv_pm_ipc_init(mss_pm_crtl->ipc_base_address | MVEBU_REGS_BASE);
+}
+#endif
+
+_Bool is_pm_fw_running(void)
+{
+	return pm_fw_running;
+}
+
+/* For TrusTzone we treat the "target" field of addr_map_win
+ * struct as attribute
+ */
+static const struct addr_map_win tz_map[] = {
+	{PLAT_MARVELL_ATF_BASE, 0x200000, TZ_PERM_ABORT}
+};
+
+/* Configure MC TrustZone regions */
+static void marvell_bl31_security_setup(void)
+{
+	int tz_nr, win_id;
+
+	tz_nr = ARRAY_SIZE(tz_map);
+
+	for (win_id = 0; win_id < tz_nr; win_id++)
+		tz_enable_win(MVEBU_AP0, tz_map, win_id);
+}
+
+/* This function overruns the same function in marvell_bl31_setup.c */
+void bl31_plat_arch_setup(void)
+{
+	int cp;
+	uintptr_t *mailbox = (void *)PLAT_MARVELL_MAILBOX_BASE;
+
+	/* initialize the timer for mdelay/udelay functionality */
+	plat_delay_timer_init();
+
+	/* configure apn806 */
+	ap_init();
+
+	/* In marvell_bl31_plat_arch_setup, el3 mmu is configured.
+	 * el3 mmu configuration MUST be called after apn806_init, if not,
+	 * this will cause an hang in init_io_win
+	 * (after setting the IO windows GCR values).
+	 */
+	if (mailbox[MBOX_IDX_MAGIC] != MVEBU_MAILBOX_MAGIC_NUM ||
+	    mailbox[MBOX_IDX_SUSPEND_MAGIC] != MVEBU_MAILBOX_SUSPEND_STATE)
+		marvell_bl31_plat_arch_setup();
+
+	for (cp = 0; cp < CP_COUNT; cp++) {
+		cp110_init(MVEBU_CP_REGS_BASE(cp),
+			   STREAM_ID_BASE + (cp * MAX_STREAM_ID_PER_CP));
+
+		marvell_bl31_mpp_init(cp);
+
+#if MSS_SUPPORT
+		/* Release CP MSS CPU from reset once the CP init is done */
+		mss_start_cp_cm3(cp);
+#endif
+	}
+
+	for (cp = 1; cp < CP_COUNT; cp++)
+		mci_link_tune(cp - 1);
+
+#if MSS_SUPPORT
+	/* initialize IPC between MSS and ATF */
+	if (mailbox[MBOX_IDX_MAGIC] != MVEBU_MAILBOX_MAGIC_NUM ||
+	    mailbox[MBOX_IDX_SUSPEND_MAGIC] != MVEBU_MAILBOX_SUSPEND_STATE)
+		marvell_bl31_mss_init();
+#endif
+	/* Configure GPIO */
+	marvell_gpio_config();
+
+	marvell_bl31_security_setup();
+}
-- 
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