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authorBiju Das <biju.das.jz@bp.renesas.com>2020-12-16 11:00:21 +0000
committerBiju Das <biju.das.jz@bp.renesas.com>2021-01-13 13:03:49 +0000
commitd58da31400cf1f3148f6c98e97effd151f6a66f3 (patch)
tree400fc4df37eed108ef7b0668c325fba3d3aa3526 /drivers/renesas/rcar
parente17997dfd6e615c99a2176d9bcaf7a73c6f618cd (diff)
downloadtrusted-firmware-a-d58da31400cf1f3148f6c98e97effd151f6a66f3.tar.gz
drivers: renesas: watchdog: Move to common
Move watch driver code to common directory, so that the same code can be re-used by both R-Car Gen3 and RZ/G2 platforms. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Change-Id: I235f2cde325a0feeadbfc4b7ee02e8b1186f7ea1
Diffstat (limited to 'drivers/renesas/rcar')
-rw-r--r--drivers/renesas/rcar/watchdog/swdt.c167
1 files changed, 0 insertions, 167 deletions
diff --git a/drivers/renesas/rcar/watchdog/swdt.c b/drivers/renesas/rcar/watchdog/swdt.c
deleted file mode 100644
index 05987ab704..0000000000
--- a/drivers/renesas/rcar/watchdog/swdt.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Copyright (c) 2015-2020, Renesas Electronics Corporation. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <arch_helpers.h>
-#include <common/debug.h>
-#include <drivers/arm/gicv2.h>
-#include <lib/mmio.h>
-
-#include "rcar_def.h"
-
-extern void gicd_set_icenabler(uintptr_t base, unsigned int id);
-
-#define RST_BASE (0xE6160000U)
-#define RST_WDTRSTCR (RST_BASE + 0x0054U)
-#define SWDT_BASE (0xE6030000U)
-#define SWDT_WTCNT (SWDT_BASE + 0x0000U)
-#define SWDT_WTCSRA (SWDT_BASE + 0x0004U)
-#define SWDT_WTCSRB (SWDT_BASE + 0x0008U)
-#define SWDT_GICD_BASE (0xF1010000U)
-#define SWDT_GICC_BASE (0xF1020000U)
-#define SWDT_GICD_CTLR (SWDT_GICD_BASE + 0x0000U)
-#define SWDT_GICD_IGROUPR (SWDT_GICD_BASE + 0x0080U)
-#define SWDT_GICD_ISPRIORITYR (SWDT_GICD_BASE + 0x0400U)
-#define SWDT_GICC_CTLR (SWDT_GICC_BASE + 0x0000U)
-#define SWDT_GICC_PMR (SWDT_GICC_BASE + 0x0004U)
-#define SWDT_GICD_ITARGETSR (SWDT_GICD_BASE + 0x0800U)
-#define IGROUPR_NUM (16U)
-#define ISPRIORITY_NUM (128U)
-#define ITARGET_MASK (0x03U)
-
-#define WDTRSTCR_UPPER_BYTE (0xA55A0000U)
-#define WTCSRA_UPPER_BYTE (0xA5A5A500U)
-#define WTCSRB_UPPER_BYTE (0xA5A5A500U)
-#define WTCNT_UPPER_BYTE (0x5A5A0000U)
-#define WTCNT_RESET_VALUE (0xF488U)
-#define WTCSRA_BIT_CKS (0x0007U)
-#define WTCSRB_BIT_CKS (0x003FU)
-#define SWDT_RSTMSK (1U << 1U)
-#define WTCSRA_WOVFE (1U << 3U)
-#define WTCSRA_WRFLG (1U << 5U)
-#define SWDT_ENABLE (1U << 7U)
-
-#define WDTRSTCR_MASK_ALL (0x0000FFFFU)
-#define WTCSRA_MASK_ALL (0x000000FFU)
-#define WTCNT_INIT_DATA (WTCNT_UPPER_BYTE + WTCNT_RESET_VALUE)
-#define WTCSRA_INIT_DATA (WTCSRA_UPPER_BYTE + 0x0FU)
-#define WTCSRB_INIT_DATA (WTCSRB_UPPER_BYTE + 0x21U)
-
-#if RCAR_LSI == RCAR_D3
-#define WTCNT_COUNT_8p13k (0x10000U - 40760U)
-#else
-#define WTCNT_COUNT_8p13k (0x10000U - 40687U)
-#endif
-#define WTCNT_COUNT_8p13k_H3VER10 (0x10000U - 20343U)
-#define WTCNT_COUNT_8p22k (0x10000U - 41115U)
-#define WTCNT_COUNT_7p81k (0x10000U - 39062U)
-#define WTCSRA_CKS_DIV16 (0x00000002U)
-
-static void swdt_disable(void)
-{
- uint32_t rmsk;
-
- rmsk = mmio_read_32(RST_WDTRSTCR) & WDTRSTCR_MASK_ALL;
- rmsk |= SWDT_RSTMSK;
- mmio_write_32(RST_WDTRSTCR, WDTRSTCR_UPPER_BYTE | rmsk);
-
- mmio_write_32(SWDT_WTCNT, WTCNT_INIT_DATA);
- mmio_write_32(SWDT_WTCSRA, WTCSRA_INIT_DATA);
- mmio_write_32(SWDT_WTCSRB, WTCSRB_INIT_DATA);
-
- /* Set the interrupt clear enable register */
- gicd_set_icenabler(RCAR_GICD_BASE, ARM_IRQ_SEC_WDT);
-}
-
-void rcar_swdt_init(void)
-{
- uint32_t rmsk, sr;
-#if (RCAR_LSI != RCAR_E3)
- uint32_t reg, val, product_cut, chk_data;
-
- reg = mmio_read_32(RCAR_PRR);
- product_cut = reg & (PRR_PRODUCT_MASK | PRR_CUT_MASK);
-
- reg = mmio_read_32(RCAR_MODEMR);
- chk_data = reg & CHECK_MD13_MD14;
-#endif
- /* stop watchdog */
- if (mmio_read_32(SWDT_WTCSRA) & SWDT_ENABLE)
- mmio_write_32(SWDT_WTCSRA, WTCSRA_UPPER_BYTE);
-
- mmio_write_32(SWDT_WTCSRA, WTCSRA_UPPER_BYTE |
- WTCSRA_WOVFE | WTCSRA_CKS_DIV16);
-
-#if (RCAR_LSI == RCAR_E3)
- mmio_write_32(SWDT_WTCNT, WTCNT_UPPER_BYTE | WTCNT_COUNT_7p81k);
-#else
- val = WTCNT_UPPER_BYTE;
-
- switch (chk_data) {
- case MD14_MD13_TYPE_0:
- case MD14_MD13_TYPE_2:
- val |= WTCNT_COUNT_8p13k;
- break;
- case MD14_MD13_TYPE_1:
- val |= WTCNT_COUNT_8p22k;
- break;
- case MD14_MD13_TYPE_3:
- val |= product_cut == (PRR_PRODUCT_H3 | PRR_PRODUCT_10) ?
- WTCNT_COUNT_8p13k_H3VER10 : WTCNT_COUNT_8p13k;
- break;
- default:
- ERROR("MODEMR ERROR value = %x\n", chk_data);
- panic();
- break;
- }
-
- mmio_write_32(SWDT_WTCNT, val);
-#endif
- rmsk = mmio_read_32(RST_WDTRSTCR) & WDTRSTCR_MASK_ALL;
- rmsk |= SWDT_RSTMSK | WDTRSTCR_UPPER_BYTE;
- mmio_write_32(RST_WDTRSTCR, rmsk);
-
- while ((mmio_read_8(SWDT_WTCSRA) & WTCSRA_WRFLG) != 0U)
- ;
-
- /* Start the System WatchDog Timer */
- sr = mmio_read_32(SWDT_WTCSRA) & WTCSRA_MASK_ALL;
- mmio_write_32(SWDT_WTCSRA, (WTCSRA_UPPER_BYTE | sr | SWDT_ENABLE));
-}
-
-void rcar_swdt_release(void)
-{
- uintptr_t itarget = SWDT_GICD_ITARGETSR +
- (ARM_IRQ_SEC_WDT & ~ITARGET_MASK);
- uint32_t i;
-
- /* Disable FIQ interrupt */
- write_daifset(DAIF_FIQ_BIT);
- /* FIQ interrupts are not taken to EL3 */
- write_scr_el3(read_scr_el3() & ~SCR_FIQ_BIT);
-
- swdt_disable();
- gicv2_cpuif_disable();
-
- for (i = 0; i < IGROUPR_NUM; i++)
- mmio_write_32(SWDT_GICD_IGROUPR + i * 4, 0U);
-
- for (i = 0; i < ISPRIORITY_NUM; i++)
- mmio_write_32(SWDT_GICD_ISPRIORITYR + i * 4, 0U);
-
- mmio_write_32(itarget, 0U);
- mmio_write_32(SWDT_GICD_CTLR, 0U);
- mmio_write_32(SWDT_GICC_CTLR, 0U);
- mmio_write_32(SWDT_GICC_PMR, 0U);
-}
-
-void rcar_swdt_exec(uint64_t p)
-{
- gicv2_end_of_interrupt(ARM_IRQ_SEC_WDT);
- rcar_swdt_release();
- ERROR("\n");
- ERROR("System WDT overflow, occurred address is %p\n", (void *)p);
- panic();
-}