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openwrt/target/linux/bcm63xx/patches-5.15/342-MIPS-BCM63XX-split-PCIe-reset-signals.patch
Álvaro Fernández Rojas 2317a7426e bcm63xx: add linux v5.15 support 
Build system: x86_64
Build-tested: generic, smp
Run-tested: generic/AR-5387un, smp/VR-3032u

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2022-05-20 15:53:16 +02:00

157 lines
5.7 KiB
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From 4bdfacdeaf3c988c4f3256c88118893eac640b03 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Sun, 8 Dec 2013 14:17:50 +0100
Subject: [PATCH 52/53] MIPS: BCM63XX: split PCIE reset signals
---
arch/mips/bcm63xx/reset.c | 39 ++++++++++++++--------
arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h | 2 ++
arch/mips/pci/pci-bcm63xx.c | 7 ++++
3 files changed, 34 insertions(+), 14 deletions(-)
--- a/arch/mips/bcm63xx/reset.c
+++ b/arch/mips/bcm63xx/reset.c
@@ -29,7 +29,9 @@
[BCM63XX_RESET_PCM] = BCM## __cpu ##_RESET_PCM, \
[BCM63XX_RESET_MPI] = BCM## __cpu ##_RESET_MPI, \
[BCM63XX_RESET_PCIE] = BCM## __cpu ##_RESET_PCIE, \
- [BCM63XX_RESET_PCIE_EXT] = BCM## __cpu ##_RESET_PCIE_EXT,
+ [BCM63XX_RESET_PCIE_EXT] = BCM## __cpu ##_RESET_PCIE_EXT, \
+ [BCM63XX_RESET_PCIE_CORE] = BCM## __cpu ##_RESET_PCIE_CORE, \
+ [BCM63XX_RESET_PCIE_HARD] = BCM## __cpu ##_RESET_PCIE_HARD,
#define BCM3368_RESET_SPI SOFTRESET_3368_SPI_MASK
#define BCM3368_RESET_ENET SOFTRESET_3368_ENET_MASK
@@ -43,6 +45,8 @@
#define BCM3368_RESET_MPI SOFTRESET_3368_MPI_MASK
#define BCM3368_RESET_PCIE 0
#define BCM3368_RESET_PCIE_EXT 0
+#define BCM3368_RESET_PCIE_CORE 0
+#define BCM3368_RESET_PCIE_HARD 0
#define BCM6318_RESET_SPI SOFTRESET_6318_SPI_MASK
@@ -55,11 +59,10 @@
#define BCM6318_RESET_ENETSW SOFTRESET_6318_ENETSW_MASK
#define BCM6318_RESET_PCM 0
#define BCM6318_RESET_MPI 0
-#define BCM6318_RESET_PCIE \
- (SOFTRESET_6318_PCIE_MASK | \
- SOFTRESET_6318_PCIE_CORE_MASK | \
- SOFTRESET_6318_PCIE_HARD_MASK)
+#define BCM6318_RESET_PCIE SOFTRESET_6318_PCIE_MASK
#define BCM6318_RESET_PCIE_EXT SOFTRESET_6318_PCIE_EXT_MASK
+#define BCM6318_RESET_PCIE_CORE SOFTRESET_6318_PCIE_CORE_MASK
+#define BCM6318_RESET_PCIE_HARD SOFTRESET_6318_PCIE_HARD_MASK
#define BCM6328_RESET_SPI SOFTRESET_6328_SPI_MASK
#define BCM6328_RESET_ENET 0
@@ -71,11 +74,10 @@
#define BCM6328_RESET_ENETSW SOFTRESET_6328_ENETSW_MASK
#define BCM6328_RESET_PCM SOFTRESET_6328_PCM_MASK
#define BCM6328_RESET_MPI 0
-#define BCM6328_RESET_PCIE \
- (SOFTRESET_6328_PCIE_MASK | \
- SOFTRESET_6328_PCIE_CORE_MASK | \
- SOFTRESET_6328_PCIE_HARD_MASK)
+#define BCM6328_RESET_PCIE SOFTRESET_6328_PCIE_MASK
#define BCM6328_RESET_PCIE_EXT SOFTRESET_6328_PCIE_EXT_MASK
+#define BCM6328_RESET_PCIE_CORE SOFTRESET_6328_PCIE_CORE_MASK
+#define BCM6328_RESET_PCIE_HARD SOFTRESET_6328_PCIE_HARD_MASK
#define BCM6338_RESET_SPI SOFTRESET_6338_SPI_MASK
#define BCM6338_RESET_ENET SOFTRESET_6338_ENET_MASK
@@ -89,6 +91,8 @@
#define BCM6338_RESET_MPI 0
#define BCM6338_RESET_PCIE 0
#define BCM6338_RESET_PCIE_EXT 0
+#define BCM6338_RESET_PCIE_CORE 0
+#define BCM6338_RESET_PCIE_HARD 0
#define BCM6348_RESET_SPI SOFTRESET_6348_SPI_MASK
#define BCM6348_RESET_ENET SOFTRESET_6348_ENET_MASK
@@ -102,6 +106,8 @@
#define BCM6348_RESET_MPI 0
#define BCM6348_RESET_PCIE 0
#define BCM6348_RESET_PCIE_EXT 0
+#define BCM6348_RESET_PCIE_CORE 0
+#define BCM6348_RESET_PCIE_HARD 0
#define BCM6358_RESET_SPI SOFTRESET_6358_SPI_MASK
#define BCM6358_RESET_ENET SOFTRESET_6358_ENET_MASK
@@ -115,6 +121,8 @@
#define BCM6358_RESET_MPI SOFTRESET_6358_MPI_MASK
#define BCM6358_RESET_PCIE 0
#define BCM6358_RESET_PCIE_EXT 0
+#define BCM6358_RESET_PCIE_CORE 0
+#define BCM6358_RESET_PCIE_HARD 0
#define BCM6362_RESET_SPI SOFTRESET_6362_SPI_MASK
#define BCM6362_RESET_ENET 0
@@ -126,9 +134,10 @@
#define BCM6362_RESET_ENETSW SOFTRESET_6362_ENETSW_MASK
#define BCM6362_RESET_PCM SOFTRESET_6362_PCM_MASK
#define BCM6362_RESET_MPI 0
-#define BCM6362_RESET_PCIE (SOFTRESET_6362_PCIE_MASK | \
- SOFTRESET_6362_PCIE_CORE_MASK)
+#define BCM6362_RESET_PCIE SOFTRESET_6362_PCIE_MASK
#define BCM6362_RESET_PCIE_EXT SOFTRESET_6362_PCIE_EXT_MASK
+#define BCM6362_RESET_PCIE_CORE SOFTRESET_6362_PCIE_CORE_MASK
+#define BCM6362_RESET_PCIE_HARD 0
#define BCM6368_RESET_SPI SOFTRESET_6368_SPI_MASK
#define BCM6368_RESET_ENET 0
@@ -142,6 +151,8 @@
#define BCM6368_RESET_MPI SOFTRESET_6368_MPI_MASK
#define BCM6368_RESET_PCIE 0
#define BCM6368_RESET_PCIE_EXT 0
+#define BCM6368_RESET_PCIE_CORE 0
+#define BCM6368_RESET_PCIE_HARD 0
#define BCM63268_RESET_SPI SOFTRESET_63268_SPI_MASK
#define BCM63268_RESET_ENET 0
@@ -153,10 +164,10 @@
#define BCM63268_RESET_ENETSW SOFTRESET_63268_ENETSW_MASK
#define BCM63268_RESET_PCM SOFTRESET_63268_PCM_MASK
#define BCM63268_RESET_MPI 0
-#define BCM63268_RESET_PCIE (SOFTRESET_63268_PCIE_MASK | \
- SOFTRESET_63268_PCIE_CORE_MASK | \
- SOFTRESET_63268_PCIE_HARD_MASK)
+#define BCM63268_RESET_PCIE SOFTRESET_63268_PCIE_MASK
#define BCM63268_RESET_PCIE_EXT SOFTRESET_63268_PCIE_EXT_MASK
+#define BCM63268_RESET_PCIE_CORE SOFTRESET_63268_PCIE_CORE_MASK
+#define BCM63268_RESET_PCIE_HARD SOFTRESET_63268_PCIE_HARD_MASK
/*
* core reset bits
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h
@@ -15,6 +15,8 @@ enum bcm63xx_core_reset {
BCM63XX_RESET_MPI,
BCM63XX_RESET_PCIE,
BCM63XX_RESET_PCIE_EXT,
+ BCM63XX_RESET_PCIE_CORE,
+ BCM63XX_RESET_PCIE_HARD,
};
void bcm63xx_core_set_reset(enum bcm63xx_core_reset, int reset);
--- a/arch/mips/pci/pci-bcm63xx.c
+++ b/arch/mips/pci/pci-bcm63xx.c
@@ -135,9 +135,16 @@ static void __init bcm63xx_reset_pcie(vo
/* reset the PCIe core */
bcm63xx_core_set_reset(BCM63XX_RESET_PCIE, 1);
+ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_CORE, 1);
bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_EXT, 1);
+ if (BCMCPU_IS_6328() || BCMCPU_IS_63268()) {
+ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_HARD, 1);
+ mdelay(10);
+ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_HARD, 0);
+ }
mdelay(10);
+ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_CORE, 0);
bcm63xx_core_set_reset(BCM63XX_RESET_PCIE, 0);
mdelay(10);
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