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/*
* Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <debug.h>
#include <generic_delay_timer.h>
#include <mmio.h>
#include <platform.h>
#include <xlat_tables.h>
#include "../zynqmp_private.h"
/*
* Table of regions to map using the MMU.
* This doesn't include TZRAM as the 'mem_layout' argument passed to
* configure_mmu_elx() will give the available subset of that,
*/
const mmap_region_t plat_arm_mmap[] = {
{ DEVICE0_BASE, DEVICE0_BASE, DEVICE0_SIZE, MT_DEVICE | MT_RW | MT_SECURE },
{ DEVICE1_BASE, DEVICE1_BASE, DEVICE1_SIZE, MT_DEVICE | MT_RW | MT_SECURE },
{ CRF_APB_BASE, CRF_APB_BASE, CRF_APB_SIZE, MT_DEVICE | MT_RW | MT_SECURE },
{0}
};
static unsigned int zynqmp_get_silicon_ver(void)
{
unsigned int ver;
ver = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_VERSION_OFFSET);
ver &= ZYNQMP_SILICON_VER_MASK;
ver >>= ZYNQMP_SILICON_VER_SHIFT;
return ver;
}
unsigned int zynqmp_get_uart_clk(void)
{
unsigned int ver = zynqmp_get_silicon_ver();
switch (ver) {
case ZYNQMP_CSU_VERSION_VELOCE:
return 48000;
case ZYNQMP_CSU_VERSION_EP108:
return 25000000;
case ZYNQMP_CSU_VERSION_QEMU:
return 133000000;
}
return 100000000;
}
static unsigned int zynqmp_get_system_timer_freq(void)
{
unsigned int ver = zynqmp_get_silicon_ver();
switch (ver) {
case ZYNQMP_CSU_VERSION_VELOCE:
return 10000;
case ZYNQMP_CSU_VERSION_EP108:
return 4000000;
case ZYNQMP_CSU_VERSION_QEMU:
return 50000000;
}
return 100000000;
}
unsigned int zynqmp_get_silicon_id(void)
{
uint32_t id;
id = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_IDCODE_OFFSET);
id &= ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK | ZYNQMP_CSU_IDCODE_SVD_MASK;
id >>= ZYNQMP_CSU_IDCODE_SVD_SHIFT;
return id;
}
#if LOG_LEVEL >= LOG_LEVEL_NOTICE
static const struct {
unsigned int id;
char *name;
} zynqmp_devices[] = {
{
.id = 0x10,
.name = "3EG",
},
{
.id = 0x11,
.name = "2EG",
},
{
.id = 0x20,
.name = "5EV",
},
{
.id = 0x21,
.name = "4EV",
},
{
.id = 0x30,
.name = "7EV",
},
{
.id = 0x38,
.name = "9EG",
},
{
.id = 0x39,
.name = "6EG",
},
{
.id = 0x40,
.name = "11EG",
},
{
.id = 0x50,
.name = "15EG",
},
{
.id = 0x58,
.name = "19EG",
},
{
.id = 0x59,
.name = "17EG",
},
};
static char *zynqmp_get_silicon_idcode_name(void)
{
unsigned int id;
id = zynqmp_get_silicon_id();
for (size_t i = 0; i < ARRAY_SIZE(zynqmp_devices); i++) {
if (zynqmp_devices[i].id == id)
return zynqmp_devices[i].name;
}
return "UNKN";
}
static unsigned int zynqmp_get_rtl_ver(void)
{
uint32_t ver;
ver = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_VERSION_OFFSET);
ver &= ZYNQMP_RTL_VER_MASK;
ver >>= ZYNQMP_RTL_VER_SHIFT;
return ver;
}
static char *zynqmp_print_silicon_idcode(void)
{
uint32_t id, maskid, tmp;
id = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_IDCODE_OFFSET);
tmp = id;
tmp &= ZYNQMP_CSU_IDCODE_XILINX_ID_MASK |
ZYNQMP_CSU_IDCODE_FAMILY_MASK;
maskid = ZYNQMP_CSU_IDCODE_XILINX_ID << ZYNQMP_CSU_IDCODE_XILINX_ID_SHIFT |
ZYNQMP_CSU_IDCODE_FAMILY << ZYNQMP_CSU_IDCODE_FAMILY_SHIFT;
if (tmp != maskid) {
ERROR("Incorrect XILINX IDCODE 0x%x, maskid 0x%x\n", id, maskid);
return "UNKN";
}
VERBOSE("Xilinx IDCODE 0x%x\n", id);
return zynqmp_get_silicon_idcode_name();
}
static unsigned int zynqmp_get_ps_ver(void)
{
uint32_t ver = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_VERSION_OFFSET);
ver &= ZYNQMP_PS_VER_MASK;
ver >>= ZYNQMP_PS_VER_SHIFT;
return ver + 1;
}
static void zynqmp_print_platform_name(void)
{
unsigned int ver = zynqmp_get_silicon_ver();
unsigned int rtl = zynqmp_get_rtl_ver();
char *label = "Unknown";
switch (ver) {
case ZYNQMP_CSU_VERSION_VELOCE:
label = "VELOCE";
break;
case ZYNQMP_CSU_VERSION_EP108:
label = "EP108";
break;
case ZYNQMP_CSU_VERSION_QEMU:
label = "QEMU";
break;
case ZYNQMP_CSU_VERSION_SILICON:
label = "silicon";
break;
}
NOTICE("ATF running on XCZU%s/%s v%d/RTL%d.%d at 0x%x%s\n",
zynqmp_print_silicon_idcode(), label, zynqmp_get_ps_ver(),
(rtl & 0xf0) >> 4, rtl & 0xf, BL31_BASE,
zynqmp_is_pmu_up() ? ", with PMU firmware" : "");
}
#else
static inline void zynqmp_print_platform_name(void) { }
#endif
/*
* Indicator for PMUFW discovery:
* 0 = No FW found
* non-zero = FW is present
*/
static int zynqmp_pmufw_present;
/*
* zynqmp_discover_pmufw - Discover presence of PMUFW
*
* Discover the presence of PMUFW and store it for later run-time queries
* through zynqmp_is_pmu_up.
* NOTE: This discovery method is fragile and will break if:
* - setting FW_PRESENT is done by PMUFW itself and could be left out in PMUFW
* (be it by error or intentionally)
* - XPPU/XMPU may restrict ATF's access to the PMU address space
*/
static int zynqmp_discover_pmufw(void)
{
zynqmp_pmufw_present = mmio_read_32(PMU_GLOBAL_CNTRL);
zynqmp_pmufw_present &= PMU_GLOBAL_CNTRL_FW_IS_PRESENT;
return !!zynqmp_pmufw_present;
}
/*
* zynqmp_is_pmu_up - Find if PMU firmware is up and running
*
* Return 0 if firmware is not available, non 0 otherwise
*/
int zynqmp_is_pmu_up(void)
{
return zynqmp_pmufw_present;
}
unsigned int zynqmp_get_bootmode(void)
{
uint32_t r = mmio_read_32(CRL_APB_BOOT_MODE_USER);
return r & CRL_APB_BOOT_MODE_MASK;
}
void zynqmp_config_setup(void)
{
zynqmp_discover_pmufw();
zynqmp_print_platform_name();
/* Global timer init - Program time stamp reference clk */
uint32_t val = mmio_read_32(CRL_APB_TIMESTAMP_REF_CTRL);
val |= CRL_APB_TIMESTAMP_REF_CTRL_CLKACT_BIT;
mmio_write_32(CRL_APB_TIMESTAMP_REF_CTRL, val);
/* Program freq register in System counter and enable system counter. */
mmio_write_32(IOU_SCNTRS_BASEFREQ, zynqmp_get_system_timer_freq());
mmio_write_32(IOU_SCNTRS_CONTROL, IOU_SCNTRS_CONTROL_EN);
generic_delay_timer_init();
}
unsigned int plat_get_syscnt_freq2(void)
{
unsigned int counter_base_frequency;
/* FIXME: Read the frequency from Frequency modes table */
counter_base_frequency = zynqmp_get_system_timer_freq();
return counter_base_frequency;
}