* [PATCH v2] PCI: hisi: Add support for HiSilicon Hip06 PCIe host bridge controllers
@ 2015-11-26 17:17 Gabriele Paoloni
2016-01-08 20:20 ` Bjorn Helgaas
0 siblings, 1 reply; 3+ messages in thread
From: Gabriele Paoloni @ 2015-11-26 17:17 UTC (permalink / raw)
To: wangzhou1, linux-pci
Cc: gabriele.paoloni, xuwei5, zhangjukuo, qiuzhenfa, qiujiang,
liudongdong3, liguozhu, linux-kernel, lorenzo.pieralisi,
bhelgaas
This patch adds support for HiSilicon Hip06 SoC.
Documentation has been updated to include Hip06.
Gabriele Paoloni has been added as maintainer of the
driver
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
---
This patch is based on top of Arnd Bergmann patch
[PATCH] PCI: hisi: fix deferred probing
---
.../devicetree/bindings/pci/hisilicon-pcie.txt | 8 +--
MAINTAINERS | 1 +
drivers/pci/host/Kconfig | 5 +-
drivers/pci/host/pcie-hisi.c | 76 ++++++++++++++++++----
4 files changed, 73 insertions(+), 17 deletions(-)
diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
index 17c6ed9..b721bea 100644
--- a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
@@ -1,4 +1,4 @@
-HiSilicon PCIe host bridge DT description
+HiSilicon Hip05 and Hip06 PCIe host bridge DT description
HiSilicon PCIe host controller is based on Designware PCI core.
It shares common functions with PCIe Designware core driver and inherits
@@ -7,8 +7,8 @@ Documentation/devicetree/bindings/pci/designware-pci.txt.
Additional properties are described here:
-Required properties:
-- compatible: Should contain "hisilicon,hip05-pcie".
+Required properties
+- compatible: Should contain "hisilicon,hip05-pcie" or "hisilicon,hip06-pcie".
- reg: Should contain rc_dbi, config registers location and length.
- reg-names: Must include the following entries:
"rc_dbi": controller configuration registers;
@@ -20,7 +20,7 @@ Optional properties:
- status: Either "ok" or "disabled".
- dma-coherent: Present if DMA operations are coherent.
-Example:
+Hip05 Example (note that Hip06 is the same except compatible):
pcie@0xb0080000 {
compatible = "hisilicon,hip05-pcie", "snps,dw-pcie";
reg = <0 0xb0080000 0 0x10000>, <0x220 0x00000000 0 0x2000>;
diff --git a/MAINTAINERS b/MAINTAINERS
index f3de001..2f78e13 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8250,6 +8250,7 @@ F: drivers/pci/host/pci-xgene-msi.c
PCIE DRIVER FOR HISILICON
M: Zhou Wang <wangzhou1@hisilicon.com>
+M: Gabriele Paoloni <gabriele.paoloni@huawei.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
index f131ba9..3f73587 100644
--- a/drivers/pci/host/Kconfig
+++ b/drivers/pci/host/Kconfig
@@ -166,10 +166,11 @@ config PCIE_ALTERA_MSI
config PCI_HISI
depends on OF && ARM64
- bool "HiSilicon SoC HIP05 PCIe controller"
+ bool "HiSilicon Hip05 and Hip06 SoCs PCIe controllers"
select PCIEPORTBUS
select PCIE_DW
help
- Say Y here if you want PCIe controller support on HiSilicon HIP05 SoC
+ Say Y here if you want PCIe controller support on HiSilicon
+ Hip05 and Hip06 SoCs
endmenu
diff --git a/drivers/pci/host/pcie-hisi.c b/drivers/pci/host/pcie-hisi.c
index 163671a..0cd7554 100644
--- a/drivers/pci/host/pcie-hisi.c
+++ b/drivers/pci/host/pcie-hisi.c
@@ -1,10 +1,11 @@
/*
- * PCIe host controller driver for HiSilicon Hip05 SoC
+ * PCIe host controller driver for HiSilicon SoCs
*
* Copyright (C) 2015 HiSilicon Co., Ltd. http://www.hisilicon.com
*
- * Author: Zhou Wang <wangzhou1@hisilicon.com>
- * Dacai Zhu <zhudacai@hisilicon.com>
+ * Authors: Zhou Wang <wangzhou1@hisilicon.com>
+ * Dacai Zhu <zhudacai@hisilicon.com>
+ * Gabriele Paoloni <gabriele.paoloni@huawei.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -16,21 +17,31 @@
#include <linux/of_address.h>
#include <linux/of_pci.h>
#include <linux/platform_device.h>
+#include <linux/of_device.h>
#include <linux/regmap.h>
#include "pcie-designware.h"
-#define PCIE_SUBCTRL_SYS_STATE4_REG 0x6818
-#define PCIE_LTSSM_LINKUP_STATE 0x11
-#define PCIE_LTSSM_STATE_MASK 0x3F
+#define PCIE_LTSSM_LINKUP_STATE 0x11
+#define PCIE_LTSSM_STATE_MASK 0x3F
+#define PCIE_SUBCTRL_SYS_STATE4_REG 0x6818
+#define PCIE_SYS_STATE4 0x31c
+#define PCIE_HIP06_CTRL_OFF 0x1000
#define to_hisi_pcie(x) container_of(x, struct hisi_pcie, pp)
+struct hisi_pcie;
+
+struct pcie_soc_ops {
+ int (*hisi_pcie_link_up)(struct hisi_pcie *pcie);
+};
+
struct hisi_pcie {
struct regmap *subctrl;
void __iomem *reg_base;
u32 port_id;
struct pcie_port pp;
+ struct pcie_soc_ops *soc_ops;
};
static inline void hisi_pcie_apb_writel(struct hisi_pcie *pcie,
@@ -44,7 +55,7 @@ static inline u32 hisi_pcie_apb_readl(struct hisi_pcie *pcie, u32 reg)
return readl(pcie->reg_base + reg);
}
-/* Hip05 PCIe host only supports 32-bit config access */
+/* HipXX PCIe host only supports 32-bit config access */
static int hisi_pcie_cfg_read(struct pcie_port *pp, int where, int size,
u32 *val)
{
@@ -67,7 +78,7 @@ static int hisi_pcie_cfg_read(struct pcie_port *pp, int where, int size,
return PCIBIOS_SUCCESSFUL;
}
-/* Hip05 PCIe host only supports 32-bit config access */
+/* HipXX PCIe host only supports 32-bit config access */
static int hisi_pcie_cfg_write(struct pcie_port *pp, int where, int size,
u32 val)
{
@@ -94,10 +105,9 @@ static int hisi_pcie_cfg_write(struct pcie_port *pp, int where, int size,
return PCIBIOS_SUCCESSFUL;
}
-static int hisi_pcie_link_up(struct pcie_port *pp)
+static int hisi_pcie_link_up_hip05(struct hisi_pcie *hisi_pcie)
{
u32 val;
- struct hisi_pcie *hisi_pcie = to_hisi_pcie(pp);
regmap_read(hisi_pcie->subctrl, PCIE_SUBCTRL_SYS_STATE4_REG +
0x100 * hisi_pcie->port_id, &val);
@@ -105,6 +115,23 @@ static int hisi_pcie_link_up(struct pcie_port *pp)
return ((val & PCIE_LTSSM_STATE_MASK) == PCIE_LTSSM_LINKUP_STATE);
}
+static int hisi_pcie_link_up_hip06(struct hisi_pcie *hisi_pcie)
+{
+ u32 val;
+
+ val = hisi_pcie_apb_readl(hisi_pcie, PCIE_HIP06_CTRL_OFF +
+ PCIE_SYS_STATE4);
+
+ return ((val & PCIE_LTSSM_STATE_MASK) == PCIE_LTSSM_LINKUP_STATE);
+}
+
+static int hisi_pcie_link_up(struct pcie_port *pp)
+{
+ struct hisi_pcie *hisi_pcie = to_hisi_pcie(pp);
+
+ return hisi_pcie->soc_ops->hisi_pcie_link_up(hisi_pcie);
+}
+
static struct pcie_host_ops hisi_pcie_host_ops = {
.rd_own_conf = hisi_pcie_cfg_read,
.wr_own_conf = hisi_pcie_cfg_write,
@@ -143,7 +170,9 @@ static int hisi_pcie_probe(struct platform_device *pdev)
{
struct hisi_pcie *hisi_pcie;
struct pcie_port *pp;
+ const struct of_device_id *match;
struct resource *reg;
+ struct device_driver *driver;
int ret;
hisi_pcie = devm_kzalloc(&pdev->dev, sizeof(*hisi_pcie), GFP_KERNEL);
@@ -152,6 +181,10 @@ static int hisi_pcie_probe(struct platform_device *pdev)
pp = &hisi_pcie->pp;
pp->dev = &pdev->dev;
+ driver = (pdev->dev).driver;
+
+ match = of_match_device(driver->of_match_table, &pdev->dev);
+ hisi_pcie->soc_ops = (struct pcie_soc_ops *) match->data;
hisi_pcie->subctrl =
syscon_regmap_lookup_by_compatible("hisilicon,pcie-sas-subctrl");
@@ -180,11 +213,27 @@ static int hisi_pcie_probe(struct platform_device *pdev)
return 0;
}
+static struct pcie_soc_ops hip05_ops = {
+ &hisi_pcie_link_up_hip05
+};
+
+static struct pcie_soc_ops hip06_ops = {
+ &hisi_pcie_link_up_hip06
+};
+
static const struct of_device_id hisi_pcie_of_match[] = {
- {.compatible = "hisilicon,hip05-pcie",},
+ {
+ .compatible = "hisilicon,hip05-pcie",
+ .data = (void *) &hip05_ops,
+ },
+ {
+ .compatible = "hisilicon,hip06-pcie",
+ .data = (void *) &hip06_ops,
+ },
{},
};
+
MODULE_DEVICE_TABLE(of, hisi_pcie_of_match);
static struct platform_driver hisi_pcie_driver = {
@@ -196,3 +245,8 @@ static struct platform_driver hisi_pcie_driver = {
};
module_platform_driver(hisi_pcie_driver);
+
+MODULE_AUTHOR("Zhou Wang <wangzhou1@hisilicon.com>");
+MODULE_AUTHOR("Dacai Zhu <zhudacai@hisilicon.com>");
+MODULE_AUTHOR("Gabriele Paoloni <gabriele.paoloni@huawei.com>");
+MODULE_LICENSE("GPL v2");
--
1.9.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] PCI: hisi: Add support for HiSilicon Hip06 PCIe host bridge controllers
2015-11-26 17:17 [PATCH v2] PCI: hisi: Add support for HiSilicon Hip06 PCIe host bridge controllers Gabriele Paoloni
@ 2016-01-08 20:20 ` Bjorn Helgaas
2016-01-11 9:38 ` Gabriele Paoloni
0 siblings, 1 reply; 3+ messages in thread
From: Bjorn Helgaas @ 2016-01-08 20:20 UTC (permalink / raw)
To: Gabriele Paoloni
Cc: wangzhou1, linux-pci, xuwei5, zhangjukuo, qiuzhenfa, qiujiang,
liudongdong3, liguozhu, linux-kernel, lorenzo.pieralisi,
bhelgaas
On Fri, Nov 27, 2015 at 01:17:05AM +0800, Gabriele Paoloni wrote:
> This patch adds support for HiSilicon Hip06 SoC.
> Documentation has been updated to include Hip06.
> Gabriele Paoloni has been added as maintainer of the
> driver
>
> Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
> Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Beautiful, applied to pci/host-hisi for v4.5, thanks, Gabriele!
> ---
> This patch is based on top of Arnd Bergmann patch
> [PATCH] PCI: hisi: fix deferred probing
> ---
> .../devicetree/bindings/pci/hisilicon-pcie.txt | 8 +--
> MAINTAINERS | 1 +
> drivers/pci/host/Kconfig | 5 +-
> drivers/pci/host/pcie-hisi.c | 76 ++++++++++++++++++----
> 4 files changed, 73 insertions(+), 17 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
> index 17c6ed9..b721bea 100644
> --- a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
> +++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
> @@ -1,4 +1,4 @@
> -HiSilicon PCIe host bridge DT description
> +HiSilicon Hip05 and Hip06 PCIe host bridge DT description
>
> HiSilicon PCIe host controller is based on Designware PCI core.
> It shares common functions with PCIe Designware core driver and inherits
> @@ -7,8 +7,8 @@ Documentation/devicetree/bindings/pci/designware-pci.txt.
>
> Additional properties are described here:
>
> -Required properties:
> -- compatible: Should contain "hisilicon,hip05-pcie".
> +Required properties
> +- compatible: Should contain "hisilicon,hip05-pcie" or "hisilicon,hip06-pcie".
> - reg: Should contain rc_dbi, config registers location and length.
> - reg-names: Must include the following entries:
> "rc_dbi": controller configuration registers;
> @@ -20,7 +20,7 @@ Optional properties:
> - status: Either "ok" or "disabled".
> - dma-coherent: Present if DMA operations are coherent.
>
> -Example:
> +Hip05 Example (note that Hip06 is the same except compatible):
> pcie@0xb0080000 {
> compatible = "hisilicon,hip05-pcie", "snps,dw-pcie";
> reg = <0 0xb0080000 0 0x10000>, <0x220 0x00000000 0 0x2000>;
> diff --git a/MAINTAINERS b/MAINTAINERS
> index f3de001..2f78e13 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -8250,6 +8250,7 @@ F: drivers/pci/host/pci-xgene-msi.c
>
> PCIE DRIVER FOR HISILICON
> M: Zhou Wang <wangzhou1@hisilicon.com>
> +M: Gabriele Paoloni <gabriele.paoloni@huawei.com>
> L: linux-pci@vger.kernel.org
> S: Maintained
> F: Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
> diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
> index f131ba9..3f73587 100644
> --- a/drivers/pci/host/Kconfig
> +++ b/drivers/pci/host/Kconfig
> @@ -166,10 +166,11 @@ config PCIE_ALTERA_MSI
>
> config PCI_HISI
> depends on OF && ARM64
> - bool "HiSilicon SoC HIP05 PCIe controller"
> + bool "HiSilicon Hip05 and Hip06 SoCs PCIe controllers"
> select PCIEPORTBUS
> select PCIE_DW
> help
> - Say Y here if you want PCIe controller support on HiSilicon HIP05 SoC
> + Say Y here if you want PCIe controller support on HiSilicon
> + Hip05 and Hip06 SoCs
>
> endmenu
> diff --git a/drivers/pci/host/pcie-hisi.c b/drivers/pci/host/pcie-hisi.c
> index 163671a..0cd7554 100644
> --- a/drivers/pci/host/pcie-hisi.c
> +++ b/drivers/pci/host/pcie-hisi.c
> @@ -1,10 +1,11 @@
> /*
> - * PCIe host controller driver for HiSilicon Hip05 SoC
> + * PCIe host controller driver for HiSilicon SoCs
> *
> * Copyright (C) 2015 HiSilicon Co., Ltd. http://www.hisilicon.com
> *
> - * Author: Zhou Wang <wangzhou1@hisilicon.com>
> - * Dacai Zhu <zhudacai@hisilicon.com>
> + * Authors: Zhou Wang <wangzhou1@hisilicon.com>
> + * Dacai Zhu <zhudacai@hisilicon.com>
> + * Gabriele Paoloni <gabriele.paoloni@huawei.com>
> *
> * This program is free software; you can redistribute it and/or modify
> * it under the terms of the GNU General Public License version 2 as
> @@ -16,21 +17,31 @@
> #include <linux/of_address.h>
> #include <linux/of_pci.h>
> #include <linux/platform_device.h>
> +#include <linux/of_device.h>
> #include <linux/regmap.h>
>
> #include "pcie-designware.h"
>
> -#define PCIE_SUBCTRL_SYS_STATE4_REG 0x6818
> -#define PCIE_LTSSM_LINKUP_STATE 0x11
> -#define PCIE_LTSSM_STATE_MASK 0x3F
> +#define PCIE_LTSSM_LINKUP_STATE 0x11
> +#define PCIE_LTSSM_STATE_MASK 0x3F
> +#define PCIE_SUBCTRL_SYS_STATE4_REG 0x6818
> +#define PCIE_SYS_STATE4 0x31c
> +#define PCIE_HIP06_CTRL_OFF 0x1000
>
> #define to_hisi_pcie(x) container_of(x, struct hisi_pcie, pp)
>
> +struct hisi_pcie;
> +
> +struct pcie_soc_ops {
> + int (*hisi_pcie_link_up)(struct hisi_pcie *pcie);
> +};
> +
> struct hisi_pcie {
> struct regmap *subctrl;
> void __iomem *reg_base;
> u32 port_id;
> struct pcie_port pp;
> + struct pcie_soc_ops *soc_ops;
> };
>
> static inline void hisi_pcie_apb_writel(struct hisi_pcie *pcie,
> @@ -44,7 +55,7 @@ static inline u32 hisi_pcie_apb_readl(struct hisi_pcie *pcie, u32 reg)
> return readl(pcie->reg_base + reg);
> }
>
> -/* Hip05 PCIe host only supports 32-bit config access */
> +/* HipXX PCIe host only supports 32-bit config access */
> static int hisi_pcie_cfg_read(struct pcie_port *pp, int where, int size,
> u32 *val)
> {
> @@ -67,7 +78,7 @@ static int hisi_pcie_cfg_read(struct pcie_port *pp, int where, int size,
> return PCIBIOS_SUCCESSFUL;
> }
>
> -/* Hip05 PCIe host only supports 32-bit config access */
> +/* HipXX PCIe host only supports 32-bit config access */
> static int hisi_pcie_cfg_write(struct pcie_port *pp, int where, int size,
> u32 val)
> {
> @@ -94,10 +105,9 @@ static int hisi_pcie_cfg_write(struct pcie_port *pp, int where, int size,
> return PCIBIOS_SUCCESSFUL;
> }
>
> -static int hisi_pcie_link_up(struct pcie_port *pp)
> +static int hisi_pcie_link_up_hip05(struct hisi_pcie *hisi_pcie)
> {
> u32 val;
> - struct hisi_pcie *hisi_pcie = to_hisi_pcie(pp);
>
> regmap_read(hisi_pcie->subctrl, PCIE_SUBCTRL_SYS_STATE4_REG +
> 0x100 * hisi_pcie->port_id, &val);
> @@ -105,6 +115,23 @@ static int hisi_pcie_link_up(struct pcie_port *pp)
> return ((val & PCIE_LTSSM_STATE_MASK) == PCIE_LTSSM_LINKUP_STATE);
> }
>
> +static int hisi_pcie_link_up_hip06(struct hisi_pcie *hisi_pcie)
> +{
> + u32 val;
> +
> + val = hisi_pcie_apb_readl(hisi_pcie, PCIE_HIP06_CTRL_OFF +
> + PCIE_SYS_STATE4);
> +
> + return ((val & PCIE_LTSSM_STATE_MASK) == PCIE_LTSSM_LINKUP_STATE);
> +}
> +
> +static int hisi_pcie_link_up(struct pcie_port *pp)
> +{
> + struct hisi_pcie *hisi_pcie = to_hisi_pcie(pp);
> +
> + return hisi_pcie->soc_ops->hisi_pcie_link_up(hisi_pcie);
> +}
> +
> static struct pcie_host_ops hisi_pcie_host_ops = {
> .rd_own_conf = hisi_pcie_cfg_read,
> .wr_own_conf = hisi_pcie_cfg_write,
> @@ -143,7 +170,9 @@ static int hisi_pcie_probe(struct platform_device *pdev)
> {
> struct hisi_pcie *hisi_pcie;
> struct pcie_port *pp;
> + const struct of_device_id *match;
> struct resource *reg;
> + struct device_driver *driver;
> int ret;
>
> hisi_pcie = devm_kzalloc(&pdev->dev, sizeof(*hisi_pcie), GFP_KERNEL);
> @@ -152,6 +181,10 @@ static int hisi_pcie_probe(struct platform_device *pdev)
>
> pp = &hisi_pcie->pp;
> pp->dev = &pdev->dev;
> + driver = (pdev->dev).driver;
> +
> + match = of_match_device(driver->of_match_table, &pdev->dev);
> + hisi_pcie->soc_ops = (struct pcie_soc_ops *) match->data;
>
> hisi_pcie->subctrl =
> syscon_regmap_lookup_by_compatible("hisilicon,pcie-sas-subctrl");
> @@ -180,11 +213,27 @@ static int hisi_pcie_probe(struct platform_device *pdev)
> return 0;
> }
>
> +static struct pcie_soc_ops hip05_ops = {
> + &hisi_pcie_link_up_hip05
> +};
> +
> +static struct pcie_soc_ops hip06_ops = {
> + &hisi_pcie_link_up_hip06
> +};
> +
> static const struct of_device_id hisi_pcie_of_match[] = {
> - {.compatible = "hisilicon,hip05-pcie",},
> + {
> + .compatible = "hisilicon,hip05-pcie",
> + .data = (void *) &hip05_ops,
> + },
> + {
> + .compatible = "hisilicon,hip06-pcie",
> + .data = (void *) &hip06_ops,
> + },
> {},
> };
>
> +
> MODULE_DEVICE_TABLE(of, hisi_pcie_of_match);
>
> static struct platform_driver hisi_pcie_driver = {
> @@ -196,3 +245,8 @@ static struct platform_driver hisi_pcie_driver = {
> };
>
> module_platform_driver(hisi_pcie_driver);
> +
> +MODULE_AUTHOR("Zhou Wang <wangzhou1@hisilicon.com>");
> +MODULE_AUTHOR("Dacai Zhu <zhudacai@hisilicon.com>");
> +MODULE_AUTHOR("Gabriele Paoloni <gabriele.paoloni@huawei.com>");
> +MODULE_LICENSE("GPL v2");
> --
> 1.9.1
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-pci" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: [PATCH v2] PCI: hisi: Add support for HiSilicon Hip06 PCIe host bridge controllers
2016-01-08 20:20 ` Bjorn Helgaas
@ 2016-01-11 9:38 ` Gabriele Paoloni
0 siblings, 0 replies; 3+ messages in thread
From: Gabriele Paoloni @ 2016-01-11 9:38 UTC (permalink / raw)
To: Bjorn Helgaas
Cc: Wangzhou (B), linux-pci, xuwei (O),
zhangjukuo, qiuzhenfa, qiujiang, liudongdong (C),
Liguozhu (Kenneth),
linux-kernel, lorenzo.pieralisi, bhelgaas
> -----Original Message-----
> From: Bjorn Helgaas [mailto:helgaas@kernel.org]
> Sent: 08 January 2016 20:20
> To: Gabriele Paoloni
> Cc: Wangzhou (B); linux-pci@vger.kernel.org; xuwei (O); zhangjukuo;
> qiuzhenfa; qiujiang; liudongdong (C); Liguozhu (Kenneth); linux-
> kernel@vger.kernel.org; lorenzo.pieralisi@arm.com; bhelgaas@google.com
> Subject: Re: [PATCH v2] PCI: hisi: Add support for HiSilicon Hip06 PCIe
> host bridge controllers
>
> On Fri, Nov 27, 2015 at 01:17:05AM +0800, Gabriele Paoloni wrote:
> > This patch adds support for HiSilicon Hip06 SoC.
> > Documentation has been updated to include Hip06.
> > Gabriele Paoloni has been added as maintainer of the driver
> >
> > Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
> > Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
>
> Beautiful, applied to pci/host-hisi for v4.5, thanks, Gabriele!
Great! Thanks a lot Bjorn!
>
> > ---
> > This patch is based on top of Arnd Bergmann patch [PATCH] PCI: hisi:
> > fix deferred probing
> > ---
> > .../devicetree/bindings/pci/hisilicon-pcie.txt | 8 +--
> > MAINTAINERS | 1 +
> > drivers/pci/host/Kconfig | 5 +-
> > drivers/pci/host/pcie-hisi.c | 76
> ++++++++++++++++++----
> > 4 files changed, 73 insertions(+), 17 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
> > b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
> > index 17c6ed9..b721bea 100644
> > --- a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
> > +++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
> > @@ -1,4 +1,4 @@
> > -HiSilicon PCIe host bridge DT description
> > +HiSilicon Hip05 and Hip06 PCIe host bridge DT description
> >
> > HiSilicon PCIe host controller is based on Designware PCI core.
> > It shares common functions with PCIe Designware core driver and
> > inherits @@ -7,8 +7,8 @@
> Documentation/devicetree/bindings/pci/designware-pci.txt.
> >
> > Additional properties are described here:
> >
> > -Required properties:
> > -- compatible: Should contain "hisilicon,hip05-pcie".
> > +Required properties
> > +- compatible: Should contain "hisilicon,hip05-pcie" or
> "hisilicon,hip06-pcie".
> > - reg: Should contain rc_dbi, config registers location and length.
> > - reg-names: Must include the following entries:
> > "rc_dbi": controller configuration registers; @@ -20,7 +20,7 @@
> > Optional properties:
> > - status: Either "ok" or "disabled".
> > - dma-coherent: Present if DMA operations are coherent.
> >
> > -Example:
> > +Hip05 Example (note that Hip06 is the same except compatible):
> > pcie@0xb0080000 {
> > compatible = "hisilicon,hip05-pcie", "snps,dw-pcie";
> > reg = <0 0xb0080000 0 0x10000>, <0x220 0x00000000 0 0x2000>;
> diff
> > --git a/MAINTAINERS b/MAINTAINERS index f3de001..2f78e13 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -8250,6 +8250,7 @@ F: drivers/pci/host/pci-xgene-msi.c
> >
> > PCIE DRIVER FOR HISILICON
> > M: Zhou Wang <wangzhou1@hisilicon.com>
> > +M: Gabriele Paoloni <gabriele.paoloni@huawei.com>
> > L: linux-pci@vger.kernel.org
> > S: Maintained
> > F: Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
> > diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
> index
> > f131ba9..3f73587 100644
> > --- a/drivers/pci/host/Kconfig
> > +++ b/drivers/pci/host/Kconfig
> > @@ -166,10 +166,11 @@ config PCIE_ALTERA_MSI
> >
> > config PCI_HISI
> > depends on OF && ARM64
> > - bool "HiSilicon SoC HIP05 PCIe controller"
> > + bool "HiSilicon Hip05 and Hip06 SoCs PCIe controllers"
> > select PCIEPORTBUS
> > select PCIE_DW
> > help
> > - Say Y here if you want PCIe controller support on HiSilicon
> HIP05 SoC
> > + Say Y here if you want PCIe controller support on HiSilicon
> > + Hip05 and Hip06 SoCs
> >
> > endmenu
> > diff --git a/drivers/pci/host/pcie-hisi.c
> > b/drivers/pci/host/pcie-hisi.c index 163671a..0cd7554 100644
> > --- a/drivers/pci/host/pcie-hisi.c
> > +++ b/drivers/pci/host/pcie-hisi.c
> > @@ -1,10 +1,11 @@
> > /*
> > - * PCIe host controller driver for HiSilicon Hip05 SoC
> > + * PCIe host controller driver for HiSilicon SoCs
> > *
> > * Copyright (C) 2015 HiSilicon Co., Ltd. http://www.hisilicon.com
> > *
> > - * Author: Zhou Wang <wangzhou1@hisilicon.com>
> > - * Dacai Zhu <zhudacai@hisilicon.com>
> > + * Authors: Zhou Wang <wangzhou1@hisilicon.com>
> > + * Dacai Zhu <zhudacai@hisilicon.com>
> > + * Gabriele Paoloni <gabriele.paoloni@huawei.com>
> > *
> > * This program is free software; you can redistribute it and/or
> modify
> > * it under the terms of the GNU General Public License version 2 as
> > @@ -16,21 +17,31 @@ #include <linux/of_address.h> #include
> > <linux/of_pci.h> #include <linux/platform_device.h>
> > +#include <linux/of_device.h>
> > #include <linux/regmap.h>
> >
> > #include "pcie-designware.h"
> >
> > -#define PCIE_SUBCTRL_SYS_STATE4_REG 0x6818
> > -#define PCIE_LTSSM_LINKUP_STATE 0x11
> > -#define PCIE_LTSSM_STATE_MASK 0x3F
> > +#define PCIE_LTSSM_LINKUP_STATE 0x11
> > +#define PCIE_LTSSM_STATE_MASK 0x3F
> > +#define PCIE_SUBCTRL_SYS_STATE4_REG 0x6818
> > +#define PCIE_SYS_STATE4 0x31c
> > +#define PCIE_HIP06_CTRL_OFF 0x1000
> >
> > #define to_hisi_pcie(x) container_of(x, struct hisi_pcie, pp)
> >
> > +struct hisi_pcie;
> > +
> > +struct pcie_soc_ops {
> > + int (*hisi_pcie_link_up)(struct hisi_pcie *pcie); };
> > +
> > struct hisi_pcie {
> > struct regmap *subctrl;
> > void __iomem *reg_base;
> > u32 port_id;
> > struct pcie_port pp;
> > + struct pcie_soc_ops *soc_ops;
> > };
> >
> > static inline void hisi_pcie_apb_writel(struct hisi_pcie *pcie, @@
> > -44,7 +55,7 @@ static inline u32 hisi_pcie_apb_readl(struct hisi_pcie
> *pcie, u32 reg)
> > return readl(pcie->reg_base + reg);
> > }
> >
> > -/* Hip05 PCIe host only supports 32-bit config access */
> > +/* HipXX PCIe host only supports 32-bit config access */
> > static int hisi_pcie_cfg_read(struct pcie_port *pp, int where, int
> size,
> > u32 *val)
> > {
> > @@ -67,7 +78,7 @@ static int hisi_pcie_cfg_read(struct pcie_port *pp,
> int where, int size,
> > return PCIBIOS_SUCCESSFUL;
> > }
> >
> > -/* Hip05 PCIe host only supports 32-bit config access */
> > +/* HipXX PCIe host only supports 32-bit config access */
> > static int hisi_pcie_cfg_write(struct pcie_port *pp, int where, int
> size,
> > u32 val)
> > {
> > @@ -94,10 +105,9 @@ static int hisi_pcie_cfg_write(struct pcie_port
> *pp, int where, int size,
> > return PCIBIOS_SUCCESSFUL;
> > }
> >
> > -static int hisi_pcie_link_up(struct pcie_port *pp)
> > +static int hisi_pcie_link_up_hip05(struct hisi_pcie *hisi_pcie)
> > {
> > u32 val;
> > - struct hisi_pcie *hisi_pcie = to_hisi_pcie(pp);
> >
> > regmap_read(hisi_pcie->subctrl, PCIE_SUBCTRL_SYS_STATE4_REG +
> > 0x100 * hisi_pcie->port_id, &val); @@ -105,6 +115,23 @@
> static
> > int hisi_pcie_link_up(struct pcie_port *pp)
> > return ((val & PCIE_LTSSM_STATE_MASK) == PCIE_LTSSM_LINKUP_STATE);
> > }
> >
> > +static int hisi_pcie_link_up_hip06(struct hisi_pcie *hisi_pcie) {
> > + u32 val;
> > +
> > + val = hisi_pcie_apb_readl(hisi_pcie, PCIE_HIP06_CTRL_OFF +
> > + PCIE_SYS_STATE4);
> > +
> > + return ((val & PCIE_LTSSM_STATE_MASK) ==
> PCIE_LTSSM_LINKUP_STATE); }
> > +
> > +static int hisi_pcie_link_up(struct pcie_port *pp) {
> > + struct hisi_pcie *hisi_pcie = to_hisi_pcie(pp);
> > +
> > + return hisi_pcie->soc_ops->hisi_pcie_link_up(hisi_pcie);
> > +}
> > +
> > static struct pcie_host_ops hisi_pcie_host_ops = {
> > .rd_own_conf = hisi_pcie_cfg_read,
> > .wr_own_conf = hisi_pcie_cfg_write,
> > @@ -143,7 +170,9 @@ static int hisi_pcie_probe(struct platform_device
> > *pdev) {
> > struct hisi_pcie *hisi_pcie;
> > struct pcie_port *pp;
> > + const struct of_device_id *match;
> > struct resource *reg;
> > + struct device_driver *driver;
> > int ret;
> >
> > hisi_pcie = devm_kzalloc(&pdev->dev, sizeof(*hisi_pcie),
> > GFP_KERNEL); @@ -152,6 +181,10 @@ static int hisi_pcie_probe(struct
> > platform_device *pdev)
> >
> > pp = &hisi_pcie->pp;
> > pp->dev = &pdev->dev;
> > + driver = (pdev->dev).driver;
> > +
> > + match = of_match_device(driver->of_match_table, &pdev->dev);
> > + hisi_pcie->soc_ops = (struct pcie_soc_ops *) match->data;
> >
> > hisi_pcie->subctrl =
> > syscon_regmap_lookup_by_compatible("hisilicon,pcie-sas-subctrl");
> > @@ -180,11 +213,27 @@ static int hisi_pcie_probe(struct
> platform_device *pdev)
> > return 0;
> > }
> >
> > +static struct pcie_soc_ops hip05_ops = {
> > + &hisi_pcie_link_up_hip05
> > +};
> > +
> > +static struct pcie_soc_ops hip06_ops = {
> > + &hisi_pcie_link_up_hip06
> > +};
> > +
> > static const struct of_device_id hisi_pcie_of_match[] = {
> > - {.compatible = "hisilicon,hip05-pcie",},
> > + {
> > + .compatible = "hisilicon,hip05-pcie",
> > + .data = (void *) &hip05_ops,
> > + },
> > + {
> > + .compatible = "hisilicon,hip06-pcie",
> > + .data = (void *) &hip06_ops,
> > + },
> > {},
> > };
> >
> > +
> > MODULE_DEVICE_TABLE(of, hisi_pcie_of_match);
> >
> > static struct platform_driver hisi_pcie_driver = { @@ -196,3 +245,8
> > @@ static struct platform_driver hisi_pcie_driver = { };
> >
> > module_platform_driver(hisi_pcie_driver);
> > +
> > +MODULE_AUTHOR("Zhou Wang <wangzhou1@hisilicon.com>");
> > +MODULE_AUTHOR("Dacai Zhu <zhudacai@hisilicon.com>");
> > +MODULE_AUTHOR("Gabriele Paoloni <gabriele.paoloni@huawei.com>");
> > +MODULE_LICENSE("GPL v2");
> > --
> > 1.9.1
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-pci"
> > in the body of a message to majordomo@vger.kernel.org More majordomo
> > info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-01-11 9:39 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-11-26 17:17 [PATCH v2] PCI: hisi: Add support for HiSilicon Hip06 PCIe host bridge controllers Gabriele Paoloni
2016-01-08 20:20 ` Bjorn Helgaas
2016-01-11 9:38 ` Gabriele Paoloni
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).