From: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Date: Tue, 28 May 2024 11:13:25 +0000 (+0200)
Subject: powerpc: mpc85xx: remove dead watchdog-related code
X-Git-Url: http://git.dujemihanovic.xyz/html/static/git-logo.png?a=commitdiff_plain;h=85c476759a42dfedb2d66e9734f8c05b7cfb62d5;p=u-boot.git

powerpc: mpc85xx: remove dead watchdog-related code

Nothing in-tree calls watchdog_reset() anymore (that stopped two years
ago with the removal of the WATCHDOG_RESET macro). So that function is
dead code.

That was the only caller of reset_85xx_watchdog(), so that
can obviously also be removed.

Finally, init_85xx_watchdog() is/was also not called from anywhere, so
that can go away as well, which nicely also removes a bit of
arch-specific code from the generic watchdog.h header.

Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Stefan Roese <sr@denx.de>
---

diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index 6356b02163..ebce2fe393 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -349,37 +349,6 @@ __weak unsigned long get_tbclk(void)
 }
 
 
-#ifndef CONFIG_WDT
-#if defined(CONFIG_WATCHDOG)
-#define WATCHDOG_MASK (TCR_WP(63) | TCR_WRC(3) | TCR_WIE)
-void
-init_85xx_watchdog(void)
-{
-	mtspr(SPRN_TCR, (mfspr(SPRN_TCR) & ~WATCHDOG_MASK) |
-	      TCR_WP(CFG_WATCHDOG_PRESC) | TCR_WRC(CFG_WATCHDOG_RC));
-}
-
-void
-reset_85xx_watchdog(void)
-{
-	/*
-	 * Clear TSR(WIS) bit by writing 1
-	 */
-	mtspr(SPRN_TSR, TSR_WIS);
-}
-
-void
-watchdog_reset(void)
-{
-	int re_enable = disable_interrupts();
-
-	reset_85xx_watchdog();
-	if (re_enable)
-		enable_interrupts();
-}
-#endif	/* CONFIG_WATCHDOG */
-#endif
-
 /*
  * Initializes on-chip MMC controllers.
  * to override, implement board_mmc_init()
diff --git a/include/watchdog.h b/include/watchdog.h
index ac5f11e376..d1956fafca 100644
--- a/include/watchdog.h
+++ b/include/watchdog.h
@@ -40,7 +40,4 @@ int init_func_watchdog_reset(void);
 	void hw_watchdog_init(void);
 #endif
 
-#if defined(CONFIG_MPC85xx)
-	void init_85xx_watchdog(void);
-#endif
 #endif /* _WATCHDOG_H_ */