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openwrt/target/linux/generic/hack-6.6/810-bcma-ssb-fallback-sprom.patch
John Audia 3711557bdf kernel: bump 6.6 to 6.6.36 
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.36

Manually rebased:
        generic/hack-6.6/765-mxl-gpy-control-LED-reg-from-DT.patch
        bcm27xx/patches-6.6/950-0536-dmaengine-dw-axi-dmac-Fixes-for-RP1.patch

Removed upstreamed:
	bmips/patches-6.6/010-v6.10-mips-bmips-BCM6358-make-sure-CBR-is-correctly-set.patch[1]

All other patches automatically rebased.

1. 7c9644a7b5

Build system: x86/64
Build-tested: x86/64/AMD Cezanne, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3
Run-tested: x86/64/AMD Cezanne, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3

Signed-off-by: John Audia <therealgraysky@proton.me>
2024-07-04 22:07:10 +02:00

188 lines
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From e4d708702e6c98f2111e33201a264d6788564cb2 Mon Sep 17 00:00:00 2001
From: OpenWrt community <openwrt-devel@lists.openwrt.org>
Date: Fri, 12 May 2023 11:08:43 +0200
Subject: [PATCH] ssb_sprom: add generic kernel support for Broadcom Fallback SPROMs
---
drivers/bcma/Kconfig | 4 ++++
drivers/bcma/Makefile | 1 +
drivers/bcma/bcma_private.h | 4 ++++
drivers/bcma/main.c | 8 ++++++++
drivers/bcma/sprom.c | 23 ++++++++++++++---------
drivers/ssb/Kconfig | 5 +++++
drivers/ssb/Makefile | 1 +
drivers/ssb/main.c | 8 ++++++++
drivers/ssb/sprom.c | 12 +++++++++++-
drivers/ssb/ssb_private.h | 4 ++++
10 files changed, 60 insertions(+), 10 deletions(-)
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -18,6 +18,10 @@ config BCMA_BLOCKIO
bool
default y
+config BCMA_FALLBACK_SPROM
+ bool
+ default y
+
config BCMA_HOST_PCI_POSSIBLE
bool
depends on PCI = y
--- a/drivers/bcma/Makefile
+++ b/drivers/bcma/Makefile
@@ -11,6 +11,7 @@ bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE)
bcma-$(CONFIG_BCMA_DRIVER_MIPS) += driver_mips.o
bcma-$(CONFIG_BCMA_DRIVER_GMAC_CMN) += driver_gmac_cmn.o
bcma-$(CONFIG_BCMA_DRIVER_GPIO) += driver_gpio.o
+bcma-$(CONFIG_BCMA_FALLBACK_SPROM) += fallback-sprom.o
bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o
bcma-$(CONFIG_BCMA_HOST_SOC) += host_soc.o
obj-$(CONFIG_BCMA) += bcma.o
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -38,6 +38,10 @@ int bcma_bus_resume(struct bcma_bus *bus
void bcma_detect_chip(struct bcma_bus *bus);
int bcma_bus_scan(struct bcma_bus *bus);
+/* fallback-sprom.c */
+int __init bcma_fbs_register(void);
+int bcma_get_fallback_sprom(struct bcma_bus *dev, struct ssb_sprom *out);
+
/* sprom.c */
int bcma_sprom_get(struct bcma_bus *bus);
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -671,6 +671,14 @@ static int __init bcma_modinit(void)
{
int err;
+#ifdef CONFIG_BCMA_FALLBACK_SPROM
+ err = bcma_fbs_register();
+ if (err) {
+ pr_err("Fallback SPROM initialization failed\n");
+ err = 0;
+ }
+#endif /* CONFIG_BCMA_FALLBACK_SPROM */
+
err = bcma_init_bus_register();
if (err)
return err;
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -51,21 +51,26 @@ static int bcma_fill_sprom_with_fallback
{
int err;
- if (!get_fallback_sprom) {
+ if (get_fallback_sprom)
+ err = get_fallback_sprom(bus, out);
+
+#ifdef CONFIG_BCMA_FALLBACK_SPROM
+ if (!get_fallback_sprom || err)
+ err = bcma_get_fallback_sprom(bus, out);
+#else
+ if (!get_fallback_sprom)
err = -ENOENT;
- goto fail;
- }
+#endif /* CONFIG_BCMA_FALLBACK_SPROM */
- err = get_fallback_sprom(bus, out);
- if (err)
- goto fail;
+ if (err) {
+ bcma_warn(bus, "Using fallback SPROM failed (err %d)\n", err);
+ return err;
+ }
bcma_debug(bus, "Using SPROM revision %d provided by platform.\n",
bus->sprom.revision);
+
return 0;
-fail:
- bcma_warn(bus, "Using fallback SPROM failed (err %d)\n", err);
- return err;
}
/**************************************************
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -25,6 +25,11 @@ if SSB
config SSB_SPROM
bool
+config SSB_FALLBACK_SPROM
+ bool
+ depends on SSB_PCIHOST
+ default y
+
# Support for Block-I/O. SELECT this from the driver that needs it.
config SSB_BLOCKIO
bool
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -2,6 +2,7 @@
# core
ssb-y += main.o scan.o
ssb-$(CONFIG_SSB_EMBEDDED) += embedded.o
+ssb-$(CONFIG_SSB_FALLBACK_SPROM) += fallback-sprom.o
ssb-$(CONFIG_SSB_SPROM) += sprom.o
# host support
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -1289,6 +1289,14 @@ static int __init ssb_modinit(void)
{
int err;
+#ifdef CONFIG_SSB_FALLBACK_SPROM
+ err = ssb_fbs_register();
+ if (err) {
+ pr_err("Fallback SPROM initialization failed\n");
+ err = 0;
+ }
+#endif /* CONFIG_SSB_FALLBACK_SPROM */
+
/* See the comment at the ssb_is_early_boot definition */
ssb_is_early_boot = 0;
err = bus_register(&ssb_bustype);
--- a/drivers/ssb/sprom.c
+++ b/drivers/ssb/sprom.c
@@ -180,10 +180,20 @@ int ssb_arch_register_fallback_sprom(int
int ssb_fill_sprom_with_fallback(struct ssb_bus *bus, struct ssb_sprom *out)
{
+ int err;
+
+ if (get_fallback_sprom)
+ err = get_fallback_sprom(bus, out);
+
+#ifdef CONFIG_SSB_FALLBACK_SPROM
+ if (!get_fallback_sprom || err)
+ err = ssb_get_fallback_sprom(bus, out);
+#else
if (!get_fallback_sprom)
return -ENOENT;
+#endif /* CONFIG_SSB_FALLBACK_SPROM */
- return get_fallback_sprom(bus, out);
+ return err;
}
/* https://bcm-v4.sipsolutions.net/802.11/IsSpromAvailable */
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -143,6 +143,10 @@ extern int ssb_bus_scan(struct ssb_bus *
extern void ssb_iounmap(struct ssb_bus *ssb);
+/* fallback-sprom.c */
+int __init ssb_fbs_register(void);
+int ssb_get_fallback_sprom(struct ssb_bus *dev, struct ssb_sprom *out);
+
/* sprom.c */
extern
ssize_t ssb_attr_sprom_show(struct ssb_bus *bus, char *buf,
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