Merge pull request #953 from vwadekar/tegra-misra-fixes-v1

Tegra misra fixes v1
diff --git a/plat/arm/css/drivers/scp/css_pm_scmi.c b/plat/arm/css/drivers/scp/css_pm_scmi.c
index b4c0a7d..1ca70a2 100644
--- a/plat/arm/css/drivers/scp/css_pm_scmi.c
+++ b/plat/arm/css/drivers/scp/css_pm_scmi.c
@@ -189,7 +189,7 @@
  */
 void css_scp_on(u_register_t mpidr)
 {
-	int lvl = 0, ret;
+	int lvl = 0, ret, core_pos;
 	uint32_t scmi_pwr_state = 0;
 
 	for (; lvl <= PLAT_MAX_PWR_LVL; lvl++)
@@ -198,8 +198,11 @@
 
 	SCMI_SET_PWR_STATE_MAX_PWR_LVL(scmi_pwr_state, lvl - 1);
 
+	core_pos = plat_core_pos_by_mpidr(mpidr);
+	assert(core_pos >= 0 && core_pos < PLATFORM_CORE_COUNT);
+
 	ret = scmi_pwr_state_set(scmi_handle,
-		plat_css_core_pos_to_scmi_dmn_id_map[plat_core_pos_by_mpidr(mpidr)],
+		plat_css_core_pos_to_scmi_dmn_id_map[core_pos],
 		scmi_pwr_state);
 
 	if (ret != SCMI_E_QUEUED && ret != SCMI_E_SUCCESS) {
diff --git a/plat/arm/css/drivers/scp/css_pm_scpi.c b/plat/arm/css/drivers/scp/css_pm_scpi.c
index 8678d20..545c3fb 100644
--- a/plat/arm/css/drivers/scp/css_pm_scpi.c
+++ b/plat/arm/css/drivers/scp/css_pm_scpi.c
@@ -93,7 +93,16 @@
 		 * The CPU state returned by SCP is an 8-bit bit mask
 		 * corresponding to each CPU in the cluster
 		 */
+#if ARM_PLAT_MT
+		/*
+		 * The current SCPI driver only caters for single-threaded
+		 * platforms. Hence we ignore the thread ID (which is always 0)
+		 * for such platforms.
+		 */
+		element = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
+#else
 		element = mpidr & MPIDR_AFFLVL_MASK;
+#endif  /* ARM_PLAT_MT */
 		return CSS_CPU_PWR_STATE(cpu_state, element) ==
 			CSS_CPU_PWR_STATE_ON ? HW_ON : HW_OFF;
 	} else {
diff --git a/plat/arm/css/drivers/scpi/css_scpi.c b/plat/arm/css/drivers/scpi/css_scpi.c
index 4a9d9cf..3e92c86 100644
--- a/plat/arm/css/drivers/scpi/css_scpi.c
+++ b/plat/arm/css/drivers/scpi/css_scpi.c
@@ -183,8 +183,17 @@
 	 * Extract CPU and cluster membership of the given MPIDR. SCPI caters
 	 * for only up to 0xf clusters, and 8 CPUs per cluster
 	 */
+#if ARM_PLAT_MT
+	/*
+	 * The current SCPI driver only caters for single-threaded platforms.
+	 * Hence we ignore the thread ID (which is always 0) for such platforms.
+	 */
+	cpu = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
+	cluster = (mpidr >> MPIDR_AFF2_SHIFT) & MPIDR_AFFLVL_MASK;
+#else
 	cpu = mpidr & MPIDR_AFFLVL_MASK;
 	cluster = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
+#endif  /* ARM_PLAT_MT */
 	if (cpu >= 8 || cluster >= 0xf)
 		return -1;
 
diff --git a/plat/hisilicon/hikey960/hi3660_mailbox.c b/plat/hisilicon/hikey960/hi3660_mailbox.c
deleted file mode 100644
index aa12932..0000000
--- a/plat/hisilicon/hikey960/hi3660_mailbox.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-#include <assert.h>
-#include <debug.h>
-#include <errno.h>
-#include <hi3660_mailbox.h>
-#include <mailbox.h>
-#include <mmio.h>
-#include <string.h>
-
-typedef struct hi3660_chan {
-	unsigned char	src;
-	unsigned char	dst;
-	unsigned char	used;
-} hi3660_chan_t;
-
-static hi3660_chan_t chan_map[MBX_MAX_CHANNELS];
-
-static void hi3660_mbox_check_state(int chan, unsigned int state)
-{
-	unsigned int data;
-
-	data = mmio_read_32(MBX_MODE(chan));
-	assert((data & (MBX_MODE_AUTO_ANSWER | MBX_MODE_AUTO_LINK)) == 0);
-
-	data &= MBX_MODE_STATE_STATUS_MASK;
-	assert(data == state);
-	(void)state;
-}
-
-static int hi3660_mbox_send(int chan, void *message, int len)
-{
-	int i;
-	unsigned int *buf;
-	unsigned int data;
-
-	assert((chan >= 0) && (chan < MBX_MAX_CHANNELS) &&
-	       (message != NULL) && (len <= MBX_MAX_DATA_LEN));
-	assert((chan_map[chan].used != 0) &&
-	       (chan_map[chan].src != 0) &&
-	       (chan_map[chan].dst != 0));
-
-	buf = (unsigned int *)message;
-	len = ((len + 3) >> 2);		/* convert to word count */
-	for (i = 0; i < len; i++)
-		mmio_write_32(MBX_DATA0(chan) + (i << 2), *(buf + i));
-	/* send out */
-	mmio_write_32(MBX_SEND(chan), chan_map[chan].src);
-
-	do {
-		data = mmio_read_32(MBX_ICLR(chan));
-	} while ((data & chan_map[chan].src) == 0);
-	/* ack */
-	mmio_write_32(MBX_ICLR(chan), chan_map[chan].src);
-	return 0;
-}
-
-static int hi3660_mbox_recv(int chan, void *message, int *len)
-{
-	unsigned int *buf, data;
-	int i;
-
-	assert((chan >= 0) && (chan < MBX_MAX_CHANNELS) &&
-	       (message != NULL) && (len != NULL));
-	assert((chan_map[chan].used != 0) &&
-	       (chan_map[chan].src != 0) &&
-	       (chan_map[chan].dst != 0));
-	/* wait IPC event */
-	do {
-		data = mmio_read_32(MBX_MODE(chan));
-	} while ((data & MBX_MODE_STATE_STATUS_MASK) != MBX_MODE_STATE_DEST);
-	/* wait to clear interrupt */
-	do {
-		data = mmio_read_32(MBX_ICLR(chan));
-	} while (data == 0);
-	do {
-		mmio_write_32(MBX_ICLR(chan), chan_map[chan].dst);
-		data = mmio_read_32(MBX_ICLR(chan));
-	} while (data);
-
-	/* read data from IPC */
-	buf = (unsigned int *)message;
-	for (i = 0; i < MBX_MAX_DATA_LEN; i += 4)
-		*(buf + (i >> 2)) = mmio_read_32(MBX_DATA0(chan) + i);
-	*len = MBX_MAX_DATA_LEN;
-	/* ack */
-	mmio_write_32(MBX_SEND(chan), chan_map[chan].dst);
-	return 0;
-}
-
-static int hi3660_mbox_request(int chan, int direction)
-{
-	unsigned int data;
-	unsigned int src, dst;
-
-	assert((chan >= 0) && (chan < MBX_MAX_CHANNELS));
-
-	if (direction == MAILBOX_DIR_TX) {
-		src = CPU_A53;
-		dst = CPU_LPM3;
-	} else if (direction == MAILBOX_DIR_RX) {
-		src = CPU_LPM3;
-		dst = CPU_A53;
-	} else
-		assert(0);
-	mmio_write_32(MBX_SOURCE(chan), src);
-	data = mmio_read_32(MBX_SOURCE(chan));
-	assert(data == src);
-
-	/* mask all interrupts */
-	mmio_write_32(MBX_IMASK(chan), CPU_MASK);
-	/* unmask interrupt */
-	mmio_write_32(MBX_IMASK(chan), ~(src | dst));
-
-	/* set destination */
-	mmio_write_32(MBX_DCLEAR(chan), (~dst) & CPU_MASK);
-	mmio_write_32(MBX_DSET(chan), dst);
-	data = mmio_read_32(MBX_DSTATUS(chan));
-	assert((data & dst) != 0);
-
-	/* clear auto link & auto answer */
-	data = mmio_read_32(MBX_MODE(chan));
-	data &= ~(MBX_MODE_AUTO_ANSWER | MBX_MODE_AUTO_LINK);
-	mmio_write_32(MBX_MODE(chan), data);
-
-	hi3660_mbox_check_state(chan, MBX_MODE_STATE_SOURCE);
-	chan_map[chan].used = 1;
-	chan_map[chan].src = src;
-	chan_map[chan].dst = dst;
-	return 0;
-}
-
-static void hi3660_mbox_free(int chan)
-{
-	assert((chan >= 0) && (chan < MBX_MAX_CHANNELS));
-}
-
-static mbox_ops_t hi3660_mbox_ops = {
-	.send		= hi3660_mbox_send,
-	.recv		= hi3660_mbox_recv,
-	.request	= hi3660_mbox_request,
-	.free		= hi3660_mbox_free,
-};
-
-int hi3660_mbox_init(mbox_params_t *params)
-{
-	int result;
-	unsigned int data;
-
-	assert(params != NULL);
-	result = mbox_init(&hi3660_mbox_ops, params);
-	assert(result == 0);
-	memset(&chan_map, 0, sizeof(chan_map));
-
-	/* unlock mailbox */
-	data = mmio_read_32(IPC_LOCK);
-	while (data == MBX_IPC_LOCKED) {
-		mmio_write_32(IPC_LOCK, MBX_IPC_UNLOCK_MAGIC);
-		data = mmio_read_32(IPC_LOCK);
-	}
-	(void)result;
-	return 0;
-}
diff --git a/plat/socionext/uniphier/uniphier_nand.c b/plat/socionext/uniphier/uniphier_nand.c
index acf6a74..88f906c 100644
--- a/plat/socionext/uniphier/uniphier_nand.c
+++ b/plat/socionext/uniphier/uniphier_nand.c
@@ -106,8 +106,9 @@
 
 	is_bad = bbm != 0xff;
 
-	/* save the result for future re-use */
-	nand->bbt[block] = is_bad;
+	/* if possible, save the result for future re-use */
+	if (block < ARRAY_SIZE(nand->bbt))
+	    nand->bbt[block] = is_bad;
 
 	if (is_bad)
 		WARN("found bad block at %d. skip.\n", block);
diff --git a/tools/cert_create/Makefile b/tools/cert_create/Makefile
index efd1f25..eae76df 100644
--- a/tools/cert_create/Makefile
+++ b/tools/cert_create/Makefile
@@ -6,7 +6,7 @@
 
 PROJECT		:= cert_create
 PLAT		:= none
-V		:= 0
+V		?= 0
 DEBUG		:= 0
 BINARY		:= ${PROJECT}${BIN_EXT}
 OPENSSL_DIR	:= /usr
@@ -50,9 +50,9 @@
   CFLAGS += -O2 -DLOG_LEVEL=20
 endif
 ifeq (${V},0)
-	Q := @
+  Q := @
 else
-	Q :=
+  Q :=
 endif
 
 $(eval $(call add_define,USE_TBBR_DEFS))
diff --git a/tools/fiptool/Makefile b/tools/fiptool/Makefile
index ee674b7..5e2ecc1 100644
--- a/tools/fiptool/Makefile
+++ b/tools/fiptool/Makefile
@@ -10,7 +10,7 @@
 
 PROJECT := fiptool${BIN_EXT}
 OBJECTS := fiptool.o tbbr_config.o
-V := 0
+V ?= 0
 
 override CPPFLAGS += -D_GNU_SOURCE -D_XOPEN_SOURCE=700
 CFLAGS := -Wall -Werror -pedantic -std=c99