linux-kernel - [PATCH 3/5] MIPS: Move mips_cm_probe after prom

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Date: Tue, 07 May 2024 10:01:51 +0100
From: Jiaxun Yang <jiaxun.yang@...goat.com>
To: Paul Burton <paulburton@...nel.org>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: [PATCH 3/5] MIPS: Move mips_cm_probe after prom_init

Move mips_cm_probe after prom_init so we can use fdt functions
in mips_cm_probe to obtain essential information.

Impat for all systems that may have CM in system:
- geneirc: Adjusted code to accommodate this change
- Lantiq: No impact, CM configuration won't be changed at all
- ralink: Called mips_cm_probe on it's own, in prom_init->prom_soc_init
- malta: No impact, CM address comes from CP0_CMGCR

Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
 arch/mips/kernel/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 12a1a4ffb602..732579c8f4f8 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -773,8 +773,8 @@ static void __init setup_rng_seed(void)
 void __init setup_arch(char **cmdline_p)
 {
 	cpu_probe();
-	mips_cm_probe();
 	prom_init();
+	mips_cm_probe();
 
 	setup_early_fdc_console();
 #ifdef CONFIG_EARLY_PRINTK

-- 
2.34.1