From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E4E75197A91; Thu, 6 Jun 2024 14:14:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717683296; cv=none; b=mN7G2cypvlU2YlFv0PVs0I1hreBOyEea3Tn6HyzRSk4LCo9M30ECjJaoZ1Nv4m/LHaUVZwiJK99peJppV5AgKtNwGOZ/NTOKkMBAEFOzPFzk/nbKfyNNgvTqUGDBqpRCH8yxyyWh44ynbaCimvxuLQHtKq/gFLxVX2lkeyZY2es= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717683296; c=relaxed/simple; bh=Jda6frCktPjEszAw8LuEwN8CAmPWNAM0eceXuQsdKZ0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Z+YBLO5F1IyQwsYqeZLBErxnunu2iu0qOfT7/EbnJQprh+pL3hqdkBUN34OxZHqpnBqn/ii9+lcThJ04okE1LtGmMBD7j9jj6Sm/sIxXHSHSbNHGCSmIHmEZ/SPOsJYZCP/TykJCRZF+qvdcJi4VBXnoMVOaAhHVG/gZQZ3P9as= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=FXRr4Hgi; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="FXRr4Hgi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF23DC2BD10; Thu, 6 Jun 2024 14:14:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1717683295; bh=Jda6frCktPjEszAw8LuEwN8CAmPWNAM0eceXuQsdKZ0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FXRr4HgiYqSBpEd0p+BUPLfDP7At4Eq09WggipnxeYXAI+xyx+Kvd+cOObv7HutSU W/9LZgHt51cCx1TeI3+Xs8HwVVwX6/C3Jm9BcvIqPZyesCBkpKykqh8M0O19h0u8WU ecLNhAoOzdC11O1EN1JdS6ew4U749TnRiyPWWGOI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Finn Thain , Geert Uytterhoeven , Sasha Levin , Stan Johnson Subject: [PATCH 6.6 236/744] m68k: mac: Fix reboot hang on Mac IIci Date: Thu, 6 Jun 2024 15:58:28 +0200 Message-ID: <20240606131739.969635280@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240606131732.440653204@linuxfoundation.org> References: <20240606131732.440653204@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Finn Thain [ Upstream commit 265a3b322df9a973ff1fc63da70af456ab6ae1d6 ] Calling mac_reset() on a Mac IIci does reset the system, but what follows is a POST failure that requires a manual reset to resolve. Avoid that by using the 68030 asm implementation instead of the C implementation. Apparently the SE/30 has a similar problem as it has used the asm implementation since before git. This patch extends that solution to other systems with a similar ROM. After this patch, the only systems still using the C implementation are 68040 systems where adb_type is either MAC_ADB_IOP or MAC_ADB_II. This implies a 1 MiB Quadra ROM. This now includes the Quadra 900/950, which previously fell through to the "should never get here" catch-all. Reported-and-tested-by: Stan Johnson Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/480ebd1249d229c6dc1f3f1c6d599b8505483fd8.1714797072.git.fthain@linux-m68k.org Signed-off-by: Geert Uytterhoeven Signed-off-by: Sasha Levin --- arch/m68k/mac/misc.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c index c7cb29f0ff016..29e06f46ab511 100644 --- a/arch/m68k/mac/misc.c +++ b/arch/m68k/mac/misc.c @@ -451,30 +451,18 @@ void mac_poweroff(void) void mac_reset(void) { - if (macintosh_config->adb_type == MAC_ADB_II && - macintosh_config->ident != MAC_MODEL_SE30) { - /* need ROMBASE in booter */ - /* indeed, plus need to MAP THE ROM !! */ - - if (mac_bi_data.rombase == 0) - mac_bi_data.rombase = 0x40800000; - - /* works on some */ - rom_reset = (void *) (mac_bi_data.rombase + 0xa); - - local_irq_disable(); - rom_reset(); #ifdef CONFIG_ADB_CUDA - } else if (macintosh_config->adb_type == MAC_ADB_EGRET || - macintosh_config->adb_type == MAC_ADB_CUDA) { + if (macintosh_config->adb_type == MAC_ADB_EGRET || + macintosh_config->adb_type == MAC_ADB_CUDA) { cuda_restart(); + } else #endif #ifdef CONFIG_ADB_PMU - } else if (macintosh_config->adb_type == MAC_ADB_PB2) { + if (macintosh_config->adb_type == MAC_ADB_PB2) { pmu_restart(); + } else #endif - } else if (CPU_IS_030) { - + if (CPU_IS_030) { /* 030-specific reset routine. The idea is general, but the * specific registers to reset are '030-specific. Until I * have a non-030 machine, I can't test anything else. @@ -522,6 +510,18 @@ void mac_reset(void) "jmp %/a0@\n\t" /* jump to the reset vector */ ".chip 68k" : : "r" (offset), "a" (rombase) : "a0"); + } else { + /* need ROMBASE in booter */ + /* indeed, plus need to MAP THE ROM !! */ + + if (mac_bi_data.rombase == 0) + mac_bi_data.rombase = 0x40800000; + + /* works on some */ + rom_reset = (void *)(mac_bi_data.rombase + 0xa); + + local_irq_disable(); + rom_reset(); } /* should never get here */ -- 2.43.0