hikey: support BL1
Initialize regulators, pins and eMMC in BL1. Only SRAM could be used in BL1.
So BL2 will be loaded from eMMC into SRAM later.
Change-Id: I8e7ef82ffa29a3c647c9d2d2981e8759ee85d833
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Dan Handley <dan.handley@arm.com>
diff --git a/plat/hisilicon/hikey/hikey_bl1_setup.c b/plat/hisilicon/hikey/hikey_bl1_setup.c
new file mode 100644
index 0000000..b005874
--- /dev/null
+++ b/plat/hisilicon/hikey/hikey_bl1_setup.c
@@ -0,0 +1,551 @@
+/*
+ * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <assert.h>
+#include <bl_common.h>
+#include <console.h>
+#include <debug.h>
+#include <dw_mmc.h>
+#include <emmc.h>
+#include <errno.h>
+#include <gpio.h>
+#include <hi6220.h>
+#include <hi6553.h>
+#include <mmio.h>
+#include <pl061_gpio.h>
+#include <platform.h>
+#include <platform_def.h>
+#include <sp804_delay_timer.h>
+#include <string.h>
+#include <tbbr/tbbr_img_desc.h>
+
+#include "../../bl1/bl1_private.h"
+#include "hikey_def.h"
+#include "hikey_private.h"
+
+/*
+ * Declarations of linker defined symbols which will help us find the layout
+ * of trusted RAM
+ */
+extern unsigned long __COHERENT_RAM_START__;
+extern unsigned long __COHERENT_RAM_END__;
+
+/*
+ * The next 2 constants identify the extents of the coherent memory region.
+ * These addresses are used by the MMU setup code and therefore they must be
+ * page-aligned. It is the responsibility of the linker script to ensure that
+ * __COHERENT_RAM_START__ and __COHERENT_RAM_END__ linker symbols refer to
+ * page-aligned addresses.
+ */
+#define BL1_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
+#define BL1_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
+
+/* Data structure which holds the extents of the trusted RAM for BL1 */
+static meminfo_t bl1_tzram_layout;
+
+enum {
+ BOOT_NORMAL = 0,
+ BOOT_USB_DOWNLOAD,
+ BOOT_UART_DOWNLOAD,
+};
+
+meminfo_t *bl1_plat_sec_mem_layout(void)
+{
+ return &bl1_tzram_layout;
+}
+
+/*
+ * Perform any BL1 specific platform actions.
+ */
+void bl1_early_platform_setup(void)
+{
+ const size_t bl1_size = BL1_RAM_LIMIT - BL1_RAM_BASE;
+
+ /* Initialize the console to provide early debug support */
+ console_init(CONSOLE_BASE, PL011_UART_CLK_IN_HZ, PL011_BAUDRATE);
+
+ /* Allow BL1 to see the whole Trusted RAM */
+ bl1_tzram_layout.total_base = BL1_RW_BASE;
+ bl1_tzram_layout.total_size = BL1_RW_SIZE;
+
+ /* Calculate how much RAM BL1 is using and how much remains free */
+ bl1_tzram_layout.free_base = BL1_RW_BASE;
+ bl1_tzram_layout.free_size = BL1_RW_SIZE;
+ reserve_mem(&bl1_tzram_layout.free_base,
+ &bl1_tzram_layout.free_size,
+ BL1_RAM_BASE,
+ bl1_size);
+
+ INFO("BL1: 0x%lx - 0x%lx [size = %lu]\n", BL1_RAM_BASE, BL1_RAM_LIMIT,
+ bl1_size);
+}
+
+/*
+ * Perform the very early platform specific architecture setup here. At the
+ * moment this only does basic initialization. Later architectural setup
+ * (bl1_arch_setup()) does not do anything platform specific.
+ */
+void bl1_plat_arch_setup(void)
+{
+ hikey_init_mmu_el3(bl1_tzram_layout.total_base,
+ bl1_tzram_layout.total_size,
+ BL1_RO_BASE,
+ BL1_RO_LIMIT,
+ BL1_COHERENT_RAM_BASE,
+ BL1_COHERENT_RAM_LIMIT);
+}
+
+static void hikey_sp804_init(void)
+{
+ uint32_t data;
+
+ /* select the clock of dual timer0 */
+ data = mmio_read_32(AO_SC_TIMER_EN0);
+ while (data & 3) {
+ data &= ~3;
+ data |= 3 << 16;
+ mmio_write_32(AO_SC_TIMER_EN0, data);
+ data = mmio_read_32(AO_SC_TIMER_EN0);
+ }
+ /* enable the pclk of dual timer0 */
+ data = mmio_read_32(AO_SC_PERIPH_CLKSTAT4);
+ while (!(data & PCLK_TIMER1) || !(data & PCLK_TIMER0)) {
+ mmio_write_32(AO_SC_PERIPH_CLKEN4, PCLK_TIMER1 | PCLK_TIMER0);
+ data = mmio_read_32(AO_SC_PERIPH_CLKSTAT4);
+ }
+ /* reset dual timer0 */
+ data = mmio_read_32(AO_SC_PERIPH_RSTSTAT4);
+ mmio_write_32(AO_SC_PERIPH_RSTEN4, PCLK_TIMER1 | PCLK_TIMER0);
+ do {
+ data = mmio_read_32(AO_SC_PERIPH_RSTSTAT4);
+ } while (!(data & PCLK_TIMER1) || !(data & PCLK_TIMER0));
+ /* unreset dual timer0 */
+ mmio_write_32(AO_SC_PERIPH_RSTDIS4, PCLK_TIMER1 | PCLK_TIMER0);
+ do {
+ data = mmio_read_32(AO_SC_PERIPH_RSTSTAT4);
+ } while ((data & PCLK_TIMER1) || (data & PCLK_TIMER0));
+
+ sp804_timer_init(SP804_TIMER0_BASE, 10, 192);
+}
+
+static void hikey_gpio_init(void)
+{
+ pl061_gpio_init();
+ pl061_gpio_register(GPIO0_BASE, 0);
+ pl061_gpio_register(GPIO1_BASE, 1);
+ pl061_gpio_register(GPIO2_BASE, 2);
+ pl061_gpio_register(GPIO3_BASE, 3);
+ pl061_gpio_register(GPIO4_BASE, 4);
+ pl061_gpio_register(GPIO5_BASE, 5);
+ pl061_gpio_register(GPIO6_BASE, 6);
+ pl061_gpio_register(GPIO7_BASE, 7);
+ pl061_gpio_register(GPIO8_BASE, 8);
+ pl061_gpio_register(GPIO9_BASE, 9);
+ pl061_gpio_register(GPIO10_BASE, 10);
+ pl061_gpio_register(GPIO11_BASE, 11);
+ pl061_gpio_register(GPIO12_BASE, 12);
+ pl061_gpio_register(GPIO13_BASE, 13);
+ pl061_gpio_register(GPIO14_BASE, 14);
+ pl061_gpio_register(GPIO15_BASE, 15);
+ pl061_gpio_register(GPIO16_BASE, 16);
+ pl061_gpio_register(GPIO17_BASE, 17);
+ pl061_gpio_register(GPIO18_BASE, 18);
+ pl061_gpio_register(GPIO19_BASE, 19);
+
+ /* Power on indicator LED (USER_LED1). */
+ gpio_set_direction(32, GPIO_DIR_OUT); /* LED1 */
+ gpio_set_value(32, GPIO_LEVEL_HIGH);
+ gpio_set_direction(33, GPIO_DIR_OUT); /* LED2 */
+ gpio_set_value(33, GPIO_LEVEL_LOW);
+ gpio_set_direction(34, GPIO_DIR_OUT); /* LED3 */
+ gpio_set_direction(35, GPIO_DIR_OUT); /* LED4 */
+}
+
+static void hikey_pmussi_init(void)
+{
+ uint32_t data;
+
+ /* Initialize PWR_HOLD GPIO */
+ gpio_set_direction(0, GPIO_DIR_OUT);
+ gpio_set_value(0, GPIO_LEVEL_LOW);
+
+ /*
+ * After reset, PMUSSI stays in reset mode.
+ * Now make it out of reset.
+ */
+ mmio_write_32(AO_SC_PERIPH_RSTDIS4,
+ AO_SC_PERIPH_RSTDIS4_PRESET_PMUSSI_N);
+ do {
+ data = mmio_read_32(AO_SC_PERIPH_RSTSTAT4);
+ } while (data & AO_SC_PERIPH_RSTDIS4_PRESET_PMUSSI_N);
+
+ /* Set PMUSSI clock latency for read operation. */
+ data = mmio_read_32(AO_SC_MCU_SUBSYS_CTRL3);
+ data &= ~AO_SC_MCU_SUBSYS_CTRL3_RCLK_MASK;
+ data |= AO_SC_MCU_SUBSYS_CTRL3_RCLK_3;
+ mmio_write_32(AO_SC_MCU_SUBSYS_CTRL3, data);
+
+ /* enable PMUSSI clock */
+ data = AO_SC_PERIPH_CLKEN5_PCLK_PMUSSI_CCPU |
+ AO_SC_PERIPH_CLKEN5_PCLK_PMUSSI_MCU;
+ mmio_write_32(AO_SC_PERIPH_CLKEN5, data);
+ data = AO_SC_PERIPH_CLKEN4_PCLK_PMUSSI;
+ mmio_write_32(AO_SC_PERIPH_CLKEN4, data);
+
+ gpio_set_value(0, GPIO_LEVEL_HIGH);
+}
+
+static void hikey_hi6553_init(void)
+{
+ uint8_t data;
+
+ mmio_write_8(HI6553_PERI_EN_MARK, 0x1e);
+ mmio_write_8(HI6553_NP_REG_ADJ1, 0);
+ data = DISABLE6_XO_CLK_CONN | DISABLE6_XO_CLK_NFC |
+ DISABLE6_XO_CLK_RF1 | DISABLE6_XO_CLK_RF2;
+ mmio_write_8(HI6553_DISABLE6_XO_CLK, data);
+
+ /* configure BUCK0 & BUCK1 */
+ mmio_write_8(HI6553_BUCK01_CTRL2, 0x5e);
+ mmio_write_8(HI6553_BUCK0_CTRL7, 0x10);
+ mmio_write_8(HI6553_BUCK1_CTRL7, 0x10);
+ mmio_write_8(HI6553_BUCK0_CTRL5, 0x1e);
+ mmio_write_8(HI6553_BUCK1_CTRL5, 0x1e);
+ mmio_write_8(HI6553_BUCK0_CTRL1, 0xfc);
+ mmio_write_8(HI6553_BUCK1_CTRL1, 0xfc);
+
+ /* configure BUCK2 */
+ mmio_write_8(HI6553_BUCK2_REG1, 0x4f);
+ mmio_write_8(HI6553_BUCK2_REG5, 0x99);
+ mmio_write_8(HI6553_BUCK2_REG6, 0x45);
+ mdelay(1);
+ mmio_write_8(HI6553_VSET_BUCK2_ADJ, 0x22);
+ mdelay(1);
+
+ /* configure BUCK3 */
+ mmio_write_8(HI6553_BUCK3_REG3, 0x02);
+ mmio_write_8(HI6553_BUCK3_REG5, 0x99);
+ mmio_write_8(HI6553_BUCK3_REG6, 0x41);
+ mmio_write_8(HI6553_VSET_BUCK3_ADJ, 0x02);
+ mdelay(1);
+
+ /* configure BUCK4 */
+ mmio_write_8(HI6553_BUCK4_REG2, 0x9a);
+ mmio_write_8(HI6553_BUCK4_REG5, 0x99);
+ mmio_write_8(HI6553_BUCK4_REG6, 0x45);
+
+ /* configure LDO20 */
+ mmio_write_8(HI6553_LDO20_REG_ADJ, 0x50);
+
+ mmio_write_8(HI6553_NP_REG_CHG, 0x0f);
+ mmio_write_8(HI6553_CLK_TOP0, 0x06);
+ mmio_write_8(HI6553_CLK_TOP3, 0xc0);
+ mmio_write_8(HI6553_CLK_TOP4, 0x00);
+
+ /* configure LDO7 & LDO10 for SD slot */
+ /* enable LDO7 */
+ data = mmio_read_8(HI6553_LDO7_REG_ADJ);
+ data = (data & 0xf8) | 0x2;
+ mmio_write_8(HI6553_LDO7_REG_ADJ, data);
+ mdelay(5);
+ mmio_write_8(HI6553_ENABLE2_LDO1_8, 1 << 6);
+ mdelay(5);
+ /* enable LDO10 */
+ data = mmio_read_8(HI6553_LDO10_REG_ADJ);
+ data = (data & 0xf8) | 0x5;
+ mmio_write_8(HI6553_LDO10_REG_ADJ, data);
+ mdelay(5);
+ mmio_write_8(HI6553_ENABLE3_LDO9_16, 1 << 1);
+ mdelay(5);
+ /* enable LDO15 */
+ data = mmio_read_8(HI6553_LDO15_REG_ADJ);
+ data = (data & 0xf8) | 0x4;
+ mmio_write_8(HI6553_LDO15_REG_ADJ, data);
+ mmio_write_8(HI6553_ENABLE3_LDO9_16, 1 << 6);
+ mdelay(5);
+ /* enable LDO19 */
+ data = mmio_read_8(HI6553_LDO19_REG_ADJ);
+ data |= 0x7;
+ mmio_write_8(HI6553_LDO19_REG_ADJ, data);
+ mmio_write_8(HI6553_ENABLE4_LDO17_22, 1 << 2);
+ mdelay(5);
+ /* enable LDO21 */
+ data = mmio_read_8(HI6553_LDO21_REG_ADJ);
+ data = (data & 0xf8) | 0x3;
+ mmio_write_8(HI6553_LDO21_REG_ADJ, data);
+ mmio_write_8(HI6553_ENABLE4_LDO17_22, 1 << 4);
+ mdelay(5);
+ /* enable LDO22 */
+ data = mmio_read_8(HI6553_LDO22_REG_ADJ);
+ data = (data & 0xf8) | 0x7;
+ mmio_write_8(HI6553_LDO22_REG_ADJ, data);
+ mmio_write_8(HI6553_ENABLE4_LDO17_22, 1 << 5);
+ mdelay(5);
+
+ /* select 32.764KHz */
+ mmio_write_8(HI6553_CLK19M2_600_586_EN, 0x01);
+}
+
+static void init_mmc0_pll(void)
+{
+ unsigned int data;
+
+ /* select SYSPLL as the source of MMC0 */
+ /* select SYSPLL as the source of MUX1 (SC_CLK_SEL0) */
+ mmio_write_32(PERI_SC_CLK_SEL0, 1 << 5 | 1 << 21);
+ do {
+ data = mmio_read_32(PERI_SC_CLK_SEL0);
+ } while (!(data & (1 << 5)));
+ /* select MUX1 as the source of MUX2 (SC_CLK_SEL0) */
+ mmio_write_32(PERI_SC_CLK_SEL0, 1 << 29);
+ do {
+ data = mmio_read_32(PERI_SC_CLK_SEL0);
+ } while (data & (1 << 13));
+
+ mmio_write_32(PERI_SC_PERIPH_CLKEN0, (1 << 0));
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_CLKSTAT0);
+ } while (!(data & (1 << 0)));
+
+ data = mmio_read_32(PERI_SC_PERIPH_CLKEN12);
+ data |= 1 << 1;
+ mmio_write_32(PERI_SC_PERIPH_CLKEN12, data);
+
+ do {
+ mmio_write_32(PERI_SC_CLKCFG8BIT1, (1 << 7) | 0xb);
+ data = mmio_read_32(PERI_SC_CLKCFG8BIT1);
+ } while ((data & 0xb) != 0xb);
+}
+
+static void reset_mmc0_clk(void)
+{
+ unsigned int data;
+
+ /* disable mmc0 bus clock */
+ mmio_write_32(PERI_SC_PERIPH_CLKDIS0, PERI_CLK0_MMC0);
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_CLKSTAT0);
+ } while (data & PERI_CLK0_MMC0);
+ /* enable mmc0 bus clock */
+ mmio_write_32(PERI_SC_PERIPH_CLKEN0, PERI_CLK0_MMC0);
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_CLKSTAT0);
+ } while (!(data & PERI_CLK0_MMC0));
+ /* reset mmc0 clock domain */
+ mmio_write_32(PERI_SC_PERIPH_RSTEN0, PERI_RST0_MMC0);
+
+ /* bypass mmc0 clock phase */
+ data = mmio_read_32(PERI_SC_PERIPH_CTRL2);
+ data |= 3;
+ mmio_write_32(PERI_SC_PERIPH_CTRL2, data);
+
+ /* disable low power */
+ data = mmio_read_32(PERI_SC_PERIPH_CTRL13);
+ data |= 1 << 3;
+ mmio_write_32(PERI_SC_PERIPH_CTRL13, data);
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_RSTSTAT0);
+ } while (!(data & PERI_RST0_MMC0));
+
+ /* unreset mmc0 clock domain */
+ mmio_write_32(PERI_SC_PERIPH_RSTDIS0, PERI_RST0_MMC0);
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_RSTSTAT0);
+ } while (data & PERI_RST0_MMC0);
+}
+
+static void init_media_clk(void)
+{
+ unsigned int data, value;
+
+ data = mmio_read_32(PMCTRL_MEDPLLCTRL);
+ data |= 1;
+ mmio_write_32(PMCTRL_MEDPLLCTRL, data);
+
+ for (;;) {
+ data = mmio_read_32(PMCTRL_MEDPLLCTRL);
+ value = 1 << 28;
+ if ((data & value) == value)
+ break;
+ }
+
+ data = mmio_read_32(PERI_SC_PERIPH_CLKEN12);
+ data = 1 << 10;
+ mmio_write_32(PERI_SC_PERIPH_CLKEN12, data);
+}
+
+static void init_mmc1_pll(void)
+{
+ uint32_t data;
+
+ /* select SYSPLL as the source of MMC1 */
+ /* select SYSPLL as the source of MUX1 (SC_CLK_SEL0) */
+ mmio_write_32(PERI_SC_CLK_SEL0, 1 << 11 | 1 << 27);
+ do {
+ data = mmio_read_32(PERI_SC_CLK_SEL0);
+ } while (!(data & (1 << 11)));
+ /* select MUX1 as the source of MUX2 (SC_CLK_SEL0) */
+ mmio_write_32(PERI_SC_CLK_SEL0, 1 << 30);
+ do {
+ data = mmio_read_32(PERI_SC_CLK_SEL0);
+ } while (data & (1 << 14));
+
+ mmio_write_32(PERI_SC_PERIPH_CLKEN0, (1 << 1));
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_CLKSTAT0);
+ } while (!(data & (1 << 1)));
+
+ data = mmio_read_32(PERI_SC_PERIPH_CLKEN12);
+ data |= 1 << 2;
+ mmio_write_32(PERI_SC_PERIPH_CLKEN12, data);
+
+ do {
+ /* 1.2GHz / 50 = 24MHz */
+ mmio_write_32(PERI_SC_CLKCFG8BIT2, 0x31 | (1 << 7));
+ data = mmio_read_32(PERI_SC_CLKCFG8BIT2);
+ } while ((data & 0x31) != 0x31);
+}
+
+static void reset_mmc1_clk(void)
+{
+ unsigned int data;
+
+ /* disable mmc1 bus clock */
+ mmio_write_32(PERI_SC_PERIPH_CLKDIS0, PERI_CLK0_MMC1);
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_CLKSTAT0);
+ } while (data & PERI_CLK0_MMC1);
+ /* enable mmc1 bus clock */
+ mmio_write_32(PERI_SC_PERIPH_CLKEN0, PERI_CLK0_MMC1);
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_CLKSTAT0);
+ } while (!(data & PERI_CLK0_MMC1));
+ /* reset mmc1 clock domain */
+ mmio_write_32(PERI_SC_PERIPH_RSTEN0, PERI_RST0_MMC1);
+
+ /* bypass mmc1 clock phase */
+ data = mmio_read_32(PERI_SC_PERIPH_CTRL2);
+ data |= 3 << 2;
+ mmio_write_32(PERI_SC_PERIPH_CTRL2, data);
+
+ /* disable low power */
+ data = mmio_read_32(PERI_SC_PERIPH_CTRL13);
+ data |= 1 << 4;
+ mmio_write_32(PERI_SC_PERIPH_CTRL13, data);
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_RSTSTAT0);
+ } while (!(data & PERI_RST0_MMC1));
+
+ /* unreset mmc0 clock domain */
+ mmio_write_32(PERI_SC_PERIPH_RSTDIS0, PERI_RST0_MMC1);
+ do {
+ data = mmio_read_32(PERI_SC_PERIPH_RSTSTAT0);
+ } while (data & PERI_RST0_MMC1);
+}
+
+/* Initialize PLL of both eMMC and SD controllers. */
+static void hikey_mmc_pll_init(void)
+{
+ init_mmc0_pll();
+ reset_mmc0_clk();
+ init_media_clk();
+
+ dsb();
+
+ init_mmc1_pll();
+ reset_mmc1_clk();
+}
+
+/*
+ * Function which will perform any remaining platform-specific setup that can
+ * occur after the MMU and data cache have been enabled.
+ */
+void bl1_platform_setup(void)
+{
+ dw_mmc_params_t params;
+
+ assert((HIKEY_BL1_MMC_DESC_BASE >= SRAM_BASE) &&
+ ((SRAM_BASE + SRAM_SIZE) >=
+ (HIKEY_BL1_MMC_DATA_BASE + HIKEY_BL1_MMC_DATA_SIZE)));
+ hikey_sp804_init();
+ hikey_gpio_init();
+ hikey_pmussi_init();
+ hikey_hi6553_init();
+
+ hikey_mmc_pll_init();
+
+ memset(¶ms, 0, sizeof(dw_mmc_params_t));
+ params.reg_base = DWMMC0_BASE;
+ params.desc_base = HIKEY_BL1_MMC_DESC_BASE;
+ params.desc_size = 1 << 20;
+ params.clk_rate = 24 * 1000 * 1000;
+ params.bus_width = EMMC_BUS_WIDTH_8;
+ params.flags = EMMC_FLAG_CMD23;
+ dw_mmc_init(¶ms);
+
+ hikey_io_setup();
+}
+
+/*
+ * The following function checks if Firmware update is needed,
+ * by checking if TOC in FIP image is valid or not.
+ */
+unsigned int bl1_plat_get_next_image_id(void)
+{
+ int32_t boot_mode;
+ unsigned int ret;
+
+ boot_mode = mmio_read_32(ONCHIPROM_PARAM_BASE);
+ switch (boot_mode) {
+ case BOOT_NORMAL:
+ ret = BL2_IMAGE_ID;
+ break;
+ case BOOT_USB_DOWNLOAD:
+ case BOOT_UART_DOWNLOAD:
+ ret = NS_BL1U_IMAGE_ID;
+ break;
+ default:
+ WARN("Invalid boot mode is found:%d\n", boot_mode);
+ panic();
+ }
+ return ret;
+}
+
+image_desc_t *bl1_plat_get_image_desc(unsigned int image_id)
+{
+ unsigned int index = 0;
+
+ while (bl1_tbbr_image_descs[index].image_id != INVALID_IMAGE_ID) {
+ if (bl1_tbbr_image_descs[index].image_id == image_id)
+ return &bl1_tbbr_image_descs[index];
+
+ index++;
+ }
+
+ return NULL;
+}
+
+void bl1_plat_set_ep_info(unsigned int image_id,
+ entry_point_info_t *ep_info)
+{
+ unsigned int data = 0;
+
+ if (image_id == BL2_IMAGE_ID)
+ return;
+ inv_dcache_range(NS_BL1U_BASE, NS_BL1U_SIZE);
+ __asm__ volatile ("mrs %0, cpacr_el1" : "=r"(data));
+ do {
+ data |= 3 << 20;
+ __asm__ volatile ("msr cpacr_el1, %0" : : "r"(data));
+ __asm__ volatile ("mrs %0, cpacr_el1" : "=r"(data));
+ } while ((data & (3 << 20)) != (3 << 20));
+ INFO("cpacr_el1:0x%x\n", data);
+
+ ep_info->args.arg0 = 0xffff & read_mpidr();
+ ep_info->spsr = SPSR_64(MODE_EL1, MODE_SP_ELX,
+ DISABLE_ALL_EXCEPTIONS);
+}