From: Jim Quinlan <james.quinlan@broadcom.com>
To: linux-pci@vger.kernel.org,
Nicolas Saenz Julienne <nsaenz@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Cyril Brulebois <kibi@debian.org>,
Stanimir Varbanov <svarbanov@suse.de>,
bcm-kernel-feedback-list@broadcom.com, jim2101024@gmail.com,
james.quinlan@broadcom.com
Cc: "Florian Fainelli" <florian.fainelli@broadcom.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
linux-rpi-kernel@lists.infradead.org (moderated list:BROADCOM
BCM2711/BCM2835 ARM ARCHITECTURE),
linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM
BCM2711/BCM2835 ARM ARCHITECTURE),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v1 6/8] PCI: brcmstb: Don't conflate the reset rescal with phy ctrl
Date: Fri, 28 Jun 2024 16:54:25 -0400 [thread overview]
Message-ID: <20240628205430.24775-7-james.quinlan@broadcom.com> (raw)
In-Reply-To: <20240628205430.24775-1-james.quinlan@broadcom.com>
[-- Attachment #1: Type: text/plain, Size: 3010 bytes --]
We've been assuming that if an SOC has a "rescal" reset controller that we
should automatically invoke brcm_phy_cntl(...). This will not be true in
future SOCs, so we create a bool "has_phy" and adjust the cfg_data
appropriately (we need to give 7216 its own cfg_data structure instead of
sharing one).
Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com>
---
drivers/pci/controller/pcie-brcmstb.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index 4e0848e1311f..e740e2966a5c 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -227,6 +227,7 @@ enum pcie_type {
struct pcie_cfg_data {
const int *offsets;
const enum pcie_type type;
+ const bool has_phy;
void (*perst_set)(struct brcm_pcie *pcie, u32 val);
void (*bridge_sw_init_set)(struct brcm_pcie *pcie, u32 val);
};
@@ -277,6 +278,7 @@ struct brcm_pcie {
void (*bridge_sw_init_set)(struct brcm_pcie *pcie, u32 val);
struct subdev_regulators *sr;
bool ep_wakeup_capable;
+ bool has_phy;
};
static inline bool is_bmips(const struct brcm_pcie *pcie)
@@ -1316,12 +1318,12 @@ static int brcm_phy_cntl(struct brcm_pcie *pcie, const int start)
static inline int brcm_phy_start(struct brcm_pcie *pcie)
{
- return pcie->rescal ? brcm_phy_cntl(pcie, 1) : 0;
+ return pcie->has_phy ? brcm_phy_cntl(pcie, 1) : 0;
}
static inline int brcm_phy_stop(struct brcm_pcie *pcie)
{
- return pcie->rescal ? brcm_phy_cntl(pcie, 0) : 0;
+ return pcie->has_phy ? brcm_phy_cntl(pcie, 0) : 0;
}
static void brcm_pcie_turn_off(struct brcm_pcie *pcie)
@@ -1564,12 +1566,20 @@ static const struct pcie_cfg_data bcm2711_cfg = {
.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic,
};
+static const struct pcie_cfg_data bcm7216_cfg = {
+ .offsets = pcie_offset_bcm7278,
+ .type = BCM7278,
+ .perst_set = brcm_pcie_perst_set_7278,
+ .bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_7278,
+ .has_phy = true,
+};
+
static const struct of_device_id brcm_pcie_match[] = {
{ .compatible = "brcm,bcm2711-pcie", .data = &bcm2711_cfg },
{ .compatible = "brcm,bcm4908-pcie", .data = &bcm4908_cfg },
{ .compatible = "brcm,bcm7211-pcie", .data = &generic_cfg },
{ .compatible = "brcm,bcm7278-pcie", .data = &bcm7278_cfg },
- { .compatible = "brcm,bcm7216-pcie", .data = &bcm7278_cfg },
+ { .compatible = "brcm,bcm7216-pcie", .data = &bcm7216_cfg },
{ .compatible = "brcm,bcm7445-pcie", .data = &generic_cfg },
{ .compatible = "brcm,bcm7435-pcie", .data = &bcm7435_cfg },
{ .compatible = "brcm,bcm7425-pcie", .data = &bcm7425_cfg },
@@ -1617,6 +1627,7 @@ static int brcm_pcie_probe(struct platform_device *pdev)
pcie->type = data->type;
pcie->perst_set = data->perst_set;
pcie->bridge_sw_init_set = data->bridge_sw_init_set;
+ pcie->has_phy = data->has_phy;
pcie->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(pcie->base))
--
2.17.1
[-- Attachment #2: S/MIME Cryptographic Signature --]
[-- Type: application/pkcs7-signature, Size: 4210 bytes --]
next prev parent reply other threads:[~2024-06-28 20:57 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-28 20:54 [PATCH v1 0/8] PCI: brcnstb: Enable STB 7712 SOC Jim Quinlan
2024-06-28 20:54 ` [PATCH v1 1/8] dt-bindings: PCI: Add Broadcom STB 7712 SOC, update maintainter Jim Quinlan
2024-07-01 9:12 ` Krzysztof Kozlowski
2024-07-02 21:57 ` Jim Quinlan
2024-07-03 4:33 ` Krzysztof Kozlowski
2024-07-01 19:47 ` Bjorn Helgaas
2024-06-28 20:54 ` [PATCH v1 2/8] PCI: brcmstb: Use "clk_out" error path label Jim Quinlan
2024-07-01 19:49 ` Bjorn Helgaas
2024-07-03 18:45 ` [PATCH " Markus Elfring
2024-06-28 20:54 ` [PATCH v1 3/8] PCI: brcmstb: Use bridge reset if available Jim Quinlan
2024-07-02 12:59 ` Stanimir Varbanov
2024-07-02 18:36 ` Jim Quinlan
2024-07-03 13:09 ` Stanimir Varbanov
2024-06-28 20:54 ` [PATCH v1 4/8] PCI: brcmstb: Use swinit " Jim Quinlan
2024-07-01 9:48 ` Philipp Zabel
2024-07-02 13:02 ` Stanimir Varbanov
2024-06-28 20:54 ` [PATCH v1 5/8] PCI: brcmstb: Two more register offsets vary by SOC Jim Quinlan
2024-07-01 17:32 ` Bjorn Helgaas
2024-06-28 20:54 ` Jim Quinlan [this message]
2024-07-02 13:10 ` [PATCH v1 6/8] PCI: brcmstb: Don't conflate the reset rescal with phy ctrl Stanimir Varbanov
2024-07-02 17:59 ` Jim Quinlan
2024-07-03 12:38 ` Stanimir Varbanov
2024-06-28 20:54 ` [PATCH v1 7/8] PCI: brcmstb: Refactor for chips with many regular inbound BARs Jim Quinlan
2024-06-28 20:54 ` [PATCH v1 8/8] PCI: brcmstb: Enable 7712 SOCs Jim Quinlan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240628205430.24775-7-james.quinlan@broadcom.com \
--to=james.quinlan@broadcom.com \
--cc=bcm-kernel-feedback-list@broadcom.com \
--cc=bhelgaas@google.com \
--cc=florian.fainelli@broadcom.com \
--cc=jim2101024@gmail.com \
--cc=kibi@debian.org \
--cc=kw@linux.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=linux-rpi-kernel@lists.infradead.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=lpieralisi@kernel.org \
--cc=nsaenz@kernel.org \
--cc=robh@kernel.org \
--cc=svarbanov@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox