Tegra: fix MISRA defects in tegra_bl31_setup.c
Main fixes:
Add parentheses to avoid implicit operator precedence [Rule 12.1]
Fixed if statement conditional to be essentially boolean [Rule 14.4]
Added curly braces ({}) around if statements in order to
make them compound [Rule 15.6]
Voided non c-library functions whose return types are not used [Rule 17.7]
Bug 200272157
Change-Id: Ic3ab5a3de95aeb6d2265df940f7fb35ea0f19ab0
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
diff --git a/plat/nvidia/tegra/common/tegra_bl31_setup.c b/plat/nvidia/tegra/common/tegra_bl31_setup.c
index 0806307..fd5c461 100644
--- a/plat/nvidia/tegra/common/tegra_bl31_setup.c
+++ b/plat/nvidia/tegra/common/tegra_bl31_setup.c
@@ -40,20 +40,19 @@
* of trusted SRAM
******************************************************************************/
-IMPORT_SYM(unsigned long, __RW_START__, BL31_RW_START);
-IMPORT_SYM(unsigned long, __RW_END__, BL31_RW_END);
-IMPORT_SYM(unsigned long, __RODATA_START__, BL31_RODATA_BASE);
-IMPORT_SYM(unsigned long, __RODATA_END__, BL31_RODATA_END);
-IMPORT_SYM(unsigned long, __TEXT_START__, TEXT_START);
-IMPORT_SYM(unsigned long, __TEXT_END__, TEXT_END);
+IMPORT_SYM(uint64_t, __RW_START__, BL31_RW_START);
+IMPORT_SYM(uint64_t, __RW_END__, BL31_RW_END);
+IMPORT_SYM(uint64_t, __RODATA_START__, BL31_RODATA_BASE);
+IMPORT_SYM(uint64_t, __RODATA_END__, BL31_RODATA_END);
+IMPORT_SYM(uint64_t, __TEXT_START__, TEXT_START);
+IMPORT_SYM(uint64_t, __TEXT_END__, TEXT_END);
extern uint64_t tegra_bl31_phys_base;
extern uint64_t tegra_console_base;
-
static entry_point_info_t bl33_image_ep_info, bl32_image_ep_info;
static plat_params_from_bl2_t plat_bl31_params_from_bl2 = {
- .tzdram_size = (uint64_t)TZDRAM_SIZE
+ .tzdram_size = TZDRAM_SIZE
};
static unsigned long bl32_mem_size;
static unsigned long bl32_boot_params;
@@ -93,14 +92,16 @@
******************************************************************************/
entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
{
- if (type == NON_SECURE)
- return &bl33_image_ep_info;
+ entry_point_info_t *ep = NULL;
/* return BL32 entry point info if it is valid */
- if (type == SECURE && bl32_image_ep_info.pc)
- return &bl32_image_ep_info;
+ if (type == NON_SECURE) {
+ ep = &bl33_image_ep_info;
+ } else if ((type == SECURE) && (bl32_image_ep_info.pc != 0U)) {
+ ep = &bl32_image_ep_info;
+ }
- return NULL;
+ return ep;
}
/*******************************************************************************
@@ -131,10 +132,12 @@
* might use custom ways to get arguments, so provide handlers which
* they can override.
*/
- if (arg_from_bl2 == NULL)
+ if (arg_from_bl2 == NULL) {
arg_from_bl2 = plat_get_bl31_params();
- if (plat_params == NULL)
+ }
+ if (plat_params == NULL) {
plat_params = plat_get_bl31_plat_params();
+ }
/*
* Copy BL3-3, BL3-2 entry point information.
@@ -144,7 +147,7 @@
assert(arg_from_bl2->bl33_ep_info);
bl33_image_ep_info = *arg_from_bl2->bl33_ep_info;
- if (arg_from_bl2->bl32_ep_info) {
+ if (arg_from_bl2->bl32_ep_info != NULL) {
bl32_image_ep_info = *arg_from_bl2->bl32_ep_info;
bl32_mem_size = arg_from_bl2->bl32_ep_info->args.arg0;
bl32_boot_params = arg_from_bl2->bl32_ep_info->args.arg2;
@@ -163,14 +166,15 @@
* It is very important that we run either from TZDRAM or TZSRAM base.
* Add an explicit check here.
*/
- if ((plat_bl31_params_from_bl2.tzdram_base != BL31_BASE) &&
- (TEGRA_TZRAM_BASE != BL31_BASE))
+ if ((plat_bl31_params_from_bl2.tzdram_base != (uint64_t)BL31_BASE) &&
+ (TEGRA_TZRAM_BASE != BL31_BASE)) {
panic();
+ }
/*
* Reference clock used by the FPGAs is a lot slower.
*/
- if (tegra_platform_is_fpga() == 1U) {
+ if (tegra_platform_is_fpga()) {
console_clock = TEGRA_BOOT_UART_CLK_13_MHZ;
} else {
console_clock = TEGRA_BOOT_UART_CLK_408_MHZ;
@@ -182,11 +186,11 @@
*/
tegra_console_base = plat_get_console_from_id(plat_params->uart_id);
- if (tegra_console_base != (uint64_t)0) {
+ if (tegra_console_base != 0U) {
/*
* Configure the UART port to be used as the console
*/
- console_init(tegra_console_base, console_clock,
+ (void)console_init(tegra_console_base, console_clock,
TEGRA_CONSOLE_BAUDRATE);
}
@@ -199,14 +203,14 @@
* Do initial security configuration to allow DRAM/device access.
*/
tegra_memctrl_tzdram_setup(plat_bl31_params_from_bl2.tzdram_base,
- plat_bl31_params_from_bl2.tzdram_size);
+ (uint32_t)plat_bl31_params_from_bl2.tzdram_size);
/*
* The previous bootloader might not have placed the BL32 image
* inside the TZDRAM. We check the BL32 image info to find out
* the base/PC values and relocate the image if necessary.
*/
- if (arg_from_bl2->bl32_image_info) {
+ if (arg_from_bl2->bl32_image_info != NULL) {
bl32_img_info = *arg_from_bl2->bl32_image_info;
@@ -223,11 +227,11 @@
assert(bl32_image_ep_info.pc < tzdram_end);
/* relocate BL32 */
- if (bl32_start >= tzdram_end || bl32_end <= tzdram_start) {
+ if ((bl32_start >= tzdram_end) || (bl32_end <= tzdram_start)) {
INFO("Relocate BL32 to TZDRAM\n");
- memcpy16((void *)(uintptr_t)bl32_image_ep_info.pc,
+ (void)memcpy16((void *)(uintptr_t)bl32_image_ep_info.pc,
(void *)(uintptr_t)bl32_start,
bl32_img_info.image_size);
@@ -264,8 +268,6 @@
******************************************************************************/
void bl31_platform_setup(void)
{
- uint32_t tmp_reg;
-
/* Initialize the gic cpu and distributor interfaces */
plat_gic_setup();
@@ -285,10 +287,6 @@
*/
tegra_memctrl_tzram_setup(TEGRA_TZRAM_BASE, TEGRA_TZRAM_SIZE);
- /* Set the next EL to be AArch64 */
- tmp_reg = SCR_RES1_BITS | SCR_RW_BIT;
- write_scr(tmp_reg);
-
INFO("BL3-1: Tegra platform setup complete\n");
}
@@ -315,17 +313,17 @@
******************************************************************************/
void bl31_plat_arch_setup(void)
{
- unsigned long rw_start = BL31_RW_START;
- unsigned long rw_size = BL31_RW_END - BL31_RW_START;
- unsigned long rodata_start = BL31_RODATA_BASE;
- unsigned long rodata_size = BL31_RODATA_END - BL31_RODATA_BASE;
- unsigned long code_base = TEXT_START;
- unsigned long code_size = TEXT_END - TEXT_START;
+ uint64_t rw_start = BL31_RW_START;
+ uint64_t rw_size = BL31_RW_END - BL31_RW_START;
+ uint64_t rodata_start = BL31_RODATA_BASE;
+ uint64_t rodata_size = BL31_RODATA_END - BL31_RODATA_BASE;
+ uint64_t code_base = TEXT_START;
+ uint64_t code_size = TEXT_END - TEXT_START;
const mmap_region_t *plat_mmio_map = NULL;
#if USE_COHERENT_MEM
- unsigned long coh_start, coh_size;
+ uint32_t coh_start, coh_size;
#endif
- plat_params_from_bl2_t *params_from_bl2 = bl31_get_plat_params();
+ const plat_params_from_bl2_t *params_from_bl2 = bl31_get_plat_params();
/* add memory regions */
mmap_add_region(rw_start, rw_start,
@@ -352,21 +350,22 @@
mmap_add_region(coh_start, coh_start,
coh_size,
- MT_DEVICE | MT_RW | MT_SECURE);
+ (uint8_t)MT_DEVICE | (uint8_t)MT_RW | (uint8_t)MT_SECURE);
#endif
/* map on-chip free running uS timer */
- mmap_add_region(page_align((uint64_t)TEGRA_TMRUS_BASE, 0),
- page_align((uint64_t)TEGRA_TMRUS_BASE, 0),
- (uint64_t)TEGRA_TMRUS_SIZE,
- MT_DEVICE | MT_RO | MT_SECURE);
+ mmap_add_region(page_align(TEGRA_TMRUS_BASE, 0),
+ page_align(TEGRA_TMRUS_BASE, 0),
+ TEGRA_TMRUS_SIZE,
+ (uint8_t)MT_DEVICE | (uint8_t)MT_RO | (uint8_t)MT_SECURE);
/* add MMIO space */
plat_mmio_map = plat_get_mmio_map();
- if (plat_mmio_map)
+ if (plat_mmio_map != NULL) {
mmap_add(plat_mmio_map);
- else
+ } else {
WARN("MMIO map not available\n");
+ }
/* set up translation tables */
init_xlat_tables();
@@ -380,16 +379,17 @@
/*******************************************************************************
* Check if the given NS DRAM range is valid
******************************************************************************/
-int bl31_check_ns_address(uint64_t base, uint64_t size_in_bytes)
+int32_t bl31_check_ns_address(uint64_t base, uint64_t size_in_bytes)
{
uint64_t end = base + size_in_bytes;
+ int32_t ret = 0;
/*
* Check if the NS DRAM address is valid
*/
if ((base < TEGRA_DRAM_BASE) || (end > TEGRA_DRAM_END)) {
ERROR("NS address is out-of-bounds!\n");
- return -EFAULT;
+ ret = -EFAULT;
}
/*
@@ -398,9 +398,9 @@
*/
if ((base < TZDRAM_END) && (end > tegra_bl31_phys_base)) {
ERROR("NS address overlaps TZDRAM!\n");
- return -ENOTSUP;
+ ret = -ENOTSUP;
}
/* valid NS address */
- return 0;
+ return ret;
}