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/*
* Copyright (C) 2017 Marvell International Ltd.
*
* SPDX-License-Identifier: BSD-3-Clause
* https://spdx.org/licenses
*/
#include <ap810_setup.h>
#include <a8kp_plat_def.h>
#include <debug.h>
#include <mmio.h>
#include <plat_marvell.h>
#include <plat_def.h>
#include <plat_dram.h>
#include <ap810_init_clocks.h>
/* Read Frequency Value from MPPS 15-17 and save
* to scratch-pad Register as a temporary solution
* in AP810 A0 revision to cover the bug in sampled-at-reset
* register.
*/
static void ble_read_cpu_freq(void)
{
unsigned int mpp_address, val;
/* Relevant for A0 only */
if (ap810_rev_id_get(MVEBU_AP0) != MVEBU_AP810_REV_ID_A0)
return;
/* TODO: add errata for this WA, we can't read from sample at reset
* register.
*/
mpp_address = MVEBU_AP_GPIO_DATA_IN(0);
val = mmio_read_32(mpp_address);
val = (val >> 15) & 0x7;
INFO("sar option read from MPPs = 0x%x\n", val);
mmio_write_32(SCRATCH_PAD_ADDR(0, 1), val);
}
int ble_plat_setup(int *skip)
{
int ret = 0;
#if !PALLADIUM
/* SW WA for AP link bring-up over JTAG connection */
if ((ap810_get_ap_count() != 1) &&
(ap810_rev_id_get(MVEBU_AP0) == MVEBU_AP810_REV_ID_A0))
jtag_init_ihb_dual_ap();
#endif
ble_read_cpu_freq();
/* Initialize the enumeration algorithm in BLE stage to
* enable access to another APs.
*/
ap810_enumeration_algo();
/* init clocks for single AP */
ap810_clocks_init(ap810_get_ap_count());
/* TODO: need to check if need early cpu powerdown */
/* TODO: check if recovery feature is needed */
/* TODO: check if SVC is needed */
/* Trigger DRAM driver initialization */
ret = plat_dram_init();
return ret;
}
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