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Revert "mpfs/mpfs_ddr.c: Stop the DDR training once it is completed"

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This reverts commit ea9144bda8.

The commit made Icicle MPFS DDR useless. Revert the change for now.

Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
This commit is contained in:
Eero Nurkkala 2022-11-02 09:44:01 +02:00 committed by Xiang Xiao
parent f5c77933cb
commit e50db35dc4
1 changed files with 0 additions and 44 deletions
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44
arch/risc-v/src/mpfs/mpfs_ddr.c
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@ -45,11 +45,9 @@
#include "riscv_internal.h"
#include "mpfs_dma.h"
#include "mpfs_plic.h"
#include "hardware/mpfs_sysreg.h"
#include "hardware/mpfs_ddr.h"
#include "hardware/mpfs_sgmii.h"
#include "hardware/mpfs_plic.h"
/****************************************************************************
* Pre-processor Definitions
@ -3861,44 +3859,6 @@ static int mpfs_ddr_test_32bit_nc(struct mpfs_ddr_priv_s *priv)
return 0;
}
/****************************************************************************
* Name: mpfs_training_stop
*
* Description:
* This stops the DDR training process, resetting the training IP.
*
* Input Parameters:
* priv - Instance of the ddr private state structure
*
****************************************************************************/
static void mpfs_training_stop(struct mpfs_ddr_priv_s *priv)
{
uintptr_t claim_address;
uint32_t irq;
/* Not needed for now */
UNUSED(priv);
/* Stop training, i.e. reset the training block */
putreg32(0, MPFS_DDR_CSR_APB_PHY_DFI_INIT_START);
putreg32(0x02, MPFS_CFG_DDR_SGMII_PHY_TRAINING_RESET);
/* Eat a way any lingering DDRC interrupt */
claim_address = mpfs_plic_get_claimbase();
irq = MPFS_IRQ_EXT_START + getreg32(claim_address);
if (irq == MPFS_IRQ_DDRC_TRAIN)
{
/* Claim this interrupt, clearing the source */
putreg32(irq - MPFS_IRQ_EXT_START, claim_address);
}
}
/****************************************************************************
* Name: mpfs_ddr_setup
*
@ -4039,10 +3999,6 @@ static int mpfs_ddr_setup(struct mpfs_ddr_priv_s *priv)
mpfs_setup_ddr_segments(LIBERO_SEG_SETUP);
/* Stop the training */
mpfs_training_stop(priv);
return 0;
}