/*******************************************************************************
* Initialize the UART
******************************************************************************/
void tsp_early_platform_setup(void)
{
/*
* Initialize a different console than already in use to display
* messages from TSP
*/
console_init(ZYNQMP_UART_BASE, zynqmp_get_uart_clk(),
ZYNQMP_UART_BAUDRATE);
/* Initialize the platform config for future decision making */
zynqmp_config_setup();
}
/*******************************************************************************
* Perform any BL31 specific platform actions. Here is an opportunity to copy
* parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
* are lost (potentially). This needs to be done before the MMU is initialized
* so that the memory layout can be used while creating page tables. On the ZYNQMP
* we know that BL2 has populated the parameters in secure DRAM. So we just use
* the reference passed in 'from_bl2' instead of copying. The 'data' parameter
* is not used since all the information is contained in 'from_bl2'. Also, BL2
* has flushed this information to memory, so we are guaranteed to pick up good
* data
******************************************************************************/
void bl31_early_platform_setup(bl31_params_t *from_bl2,
void *plat_params_from_bl2)
{
/* Initialize the console to provide early debug support */
console_init(RDO_UART0_BASE, zynqmp_get_uart_clk(), CADENCE_UART_BAUDRATE);
/* Initialize the platform config for future decision making */
zynqmp_config_setup();
/* There are no parameters from BL2 if BL31 is a reset vector */
assert(from_bl2 == NULL);
assert(plat_params_from_bl2 == NULL);
/*
* Do initial security configuration to allow DRAM/device access. On
* Base ZYNQMP only DRAM security is programmable (via TrustZone), but
* other platforms might have more programmable security devices
* present.
*/
/* Populate entry point information for BL32 and BL33 */
SET_PARAM_HEAD(&bl32_image_ep_info,
PARAM_EP,
VERSION_1,
0);
SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE);
bl32_image_ep_info.pc = BL32_BASE;
bl32_image_ep_info.spsr = arm_get_spsr_for_bl32_entry();
NOTICE("BL31: Secure code at 0x%lx\n", bl32_image_ep_info.pc);
SET_PARAM_HEAD(&bl33_image_ep_info,
PARAM_EP,
VERSION_1,
0);
/*
* Tell BL31 where the non-trusted software image
* is located and the entry state information
*/
bl33_image_ep_info.pc = plat_get_ns_image_entrypoint();
bl33_image_ep_info.spsr = SPSR_64(MODE_EL2, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
NOTICE("BL31: Non secure code at 0x%lx\n", bl33_image_ep_info.pc);
}
/*
* Perform any BL31 specific platform actions. Here is an opportunity to copy
* parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
* are lost (potentially). This needs to be done before the MMU is initialized
* so that the memory layout can be used while creating page tables.
*/
void bl31_early_platform_setup(bl31_params_t *from_bl2,
void *plat_params_from_bl2)
{
/* Initialize the console to provide early debug support */
console_init(ZYNQMP_UART_BASE, zynqmp_get_uart_clk(),
ZYNQMP_UART_BAUDRATE);
/* Initialize the platform config for future decision making */
zynqmp_config_setup();
/* There are no parameters from BL2 if BL31 is a reset vector */
assert(from_bl2 == NULL);
assert(plat_params_from_bl2 == NULL);
/*
* Do initial security configuration to allow DRAM/device access. On
* Base ZYNQMP only DRAM security is programmable (via TrustZone), but
* other platforms might have more programmable security devices
* present.
*/
/* Populate common information for BL32 and BL33 */
SET_PARAM_HEAD(&bl32_image_ep_info, PARAM_EP, VERSION_1, 0);
SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE);
SET_PARAM_HEAD(&bl33_image_ep_info, PARAM_EP, VERSION_1, 0);
SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
if (zynqmp_get_bootmode() == ZYNQMP_BOOTMODE_JTAG) {
/* use build time defaults in JTAG boot mode */
bl32_image_ep_info.pc = BL32_BASE;
bl32_image_ep_info.spsr = arm_get_spsr_for_bl32_entry();
bl33_image_ep_info.pc = plat_get_ns_image_entrypoint();
bl33_image_ep_info.spsr = SPSR_64(MODE_EL2, MODE_SP_ELX,
DISABLE_ALL_EXCEPTIONS);
} else {
/* use parameters from FSBL */
fsbl_atf_handover(&bl32_image_ep_info, &bl33_image_ep_info);
}
NOTICE("BL31: Secure code at 0x%lx\n", bl32_image_ep_info.pc);
NOTICE("BL31: Non secure code at 0x%lx\n", bl33_image_ep_info.pc);
}
