[PATCH] pci: ecm generic: use dev_read_() interface
Use dev_read_() api instead of the fdtdec API to fetch the host controller's reg property value. This is similar to the other host controller drivers such as Sifive, Rockchip etc. Without this change, enabling CONFIG_OF_LIVE breaks the PCIe enumeration on Qemu Risc-V virt machine. The issue is described in the link below:
Link: https://source.denx.de/u-boot/custodians/u-boot-dm/-/issues/1 Signed-off-by: Mayuresh Chitale mchitale@ventanamicro.com --- drivers/pci/pcie_ecam_generic.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-)
diff --git a/drivers/pci/pcie_ecam_generic.c b/drivers/pci/pcie_ecam_generic.c index 1a9f9aec2e..f0effe0001 100644 --- a/drivers/pci/pcie_ecam_generic.c +++ b/drivers/pci/pcie_ecam_generic.c @@ -132,19 +132,14 @@ static int pci_generic_ecam_write_config(struct udevice *bus, pci_dev_t bdf, static int pci_generic_ecam_of_to_plat(struct udevice *dev) { struct generic_ecam_pcie *pcie = dev_get_priv(dev); - struct fdt_resource reg_res; - DECLARE_GLOBAL_DATA_PTR; - int err; - - err = fdt_get_resource(gd->fdt_blob, dev_of_offset(dev), "reg", - 0, ®_res); - if (err < 0) { - pr_err(""reg" resource not found\n"); - return err; - } - - pcie->size = fdt_resource_size(®_res); - pcie->cfg_base = map_physmem(reg_res.start, pcie->size, MAP_NOCACHE); + fdt_addr_t addr; + fdt_size_t size; + + addr = dev_read_addr_size(dev, "reg", &size); + if (addr == FDT_ADDR_T_NONE) + return -EINVAL; + pcie->size = size; + pcie->cfg_base = map_physmem(addr, pcie->size, MAP_NOCACHE);
return 0; }
On Sat, 18 Feb 2023 at 05:25, Mayuresh Chitale mchitale@ventanamicro.com wrote:
Use dev_read_() api instead of the fdtdec API to fetch the host controller's reg property value. This is similar to the other host controller drivers such as Sifive, Rockchip etc. Without this change, enabling CONFIG_OF_LIVE breaks the PCIe enumeration on Qemu Risc-V virt machine. The issue is described in the link below:
Link: https://source.denx.de/u-boot/custodians/u-boot-dm/-/issues/1 Signed-off-by: Mayuresh Chitale mchitale@ventanamicro.com
drivers/pci/pcie_ecam_generic.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
On Sat, Feb 18, 2023 at 05:55:25PM +0530, Mayuresh Chitale wrote:
Use dev_read_() api instead of the fdtdec API to fetch the host controller's reg property value. This is similar to the other host controller drivers such as Sifive, Rockchip etc. Without this change, enabling CONFIG_OF_LIVE breaks the PCIe enumeration on Qemu Risc-V virt machine. The issue is described in the link below:
Link: https://source.denx.de/u-boot/custodians/u-boot-dm/-/issues/1 Signed-off-by: Mayuresh Chitale mchitale@ventanamicro.com Reviewed-by: Simon Glass sjg@chromium.org
drivers/pci/pcie_ecam_generic.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-)
This breaks some platforms such as qemu_arm at a minimum.
On Thu, May 4, 2023 at 2:04 AM Tom Rini trini@konsulko.com wrote:
On Sat, Feb 18, 2023 at 05:55:25PM +0530, Mayuresh Chitale wrote:
Use dev_read_() api instead of the fdtdec API to fetch the host controller's reg property value. This is similar to the other host controller drivers such as Sifive, Rockchip etc. Without this change, enabling CONFIG_OF_LIVE breaks the PCIe enumeration on Qemu Risc-V virt machine. The issue is described in the link below:
Link: https://source.denx.de/u-boot/custodians/u-boot-dm/-/issues/1 Signed-off-by: Mayuresh Chitale mchitale@ventanamicro.com Reviewed-by: Simon Glass sjg@chromium.org
drivers/pci/pcie_ecam_generic.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-)
This breaks some platforms such as qemu_arm at a minimum.
Ok. How do I reproduce the issue?
-- Tom
On Mon, May 08, 2023 at 08:30:15PM +0530, Mayuresh Chitale wrote:
On Thu, May 4, 2023 at 2:04 AM Tom Rini trini@konsulko.com wrote:
On Sat, Feb 18, 2023 at 05:55:25PM +0530, Mayuresh Chitale wrote:
Use dev_read_() api instead of the fdtdec API to fetch the host controller's reg property value. This is similar to the other host controller drivers such as Sifive, Rockchip etc. Without this change, enabling CONFIG_OF_LIVE breaks the PCIe enumeration on Qemu Risc-V virt machine. The issue is described in the link below:
Link: https://source.denx.de/u-boot/custodians/u-boot-dm/-/issues/1 Signed-off-by: Mayuresh Chitale mchitale@ventanamicro.com Reviewed-by: Simon Glass sjg@chromium.org
drivers/pci/pcie_ecam_generic.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-)
This breaks some platforms such as qemu_arm at a minimum.
Ok. How do I reproduce the issue?
Right, sorry. So the failure log is: https://source.denx.de/u-boot/u-boot/-/jobs/622397 And https://u-boot.readthedocs.io/en/latest/develop/py_testing.html talks about running the pytest suite outside of CI and https://u-boot.readthedocs.io/en/latest/develop/ci_testing.html about how to trigger CI yourself. One thing that's not documented well enough is that you'll likely want https://source.denx.de/u-boot/u-boot-test-hooks as well as you can just use as-is the "travis-ci" directories (legacy name, used by both gitlab and azure as-is) as the configuration hooks for your system as well and then the network tests will run easily, locally.
Hi,
On Mon, 8 May 2023 at 09:08, Tom Rini trini@konsulko.com wrote:
On Mon, May 08, 2023 at 08:30:15PM +0530, Mayuresh Chitale wrote:
On Thu, May 4, 2023 at 2:04 AM Tom Rini trini@konsulko.com wrote:
On Sat, Feb 18, 2023 at 05:55:25PM +0530, Mayuresh Chitale wrote:
Use dev_read_() api instead of the fdtdec API to fetch the host controller's reg property value. This is similar to the other host controller drivers such as Sifive, Rockchip etc. Without this change, enabling CONFIG_OF_LIVE breaks the PCIe enumeration on Qemu Risc-V virt machine. The issue is described in the link below:
Link: https://source.denx.de/u-boot/custodians/u-boot-dm/-/issues/1 Signed-off-by: Mayuresh Chitale mchitale@ventanamicro.com Reviewed-by: Simon Glass sjg@chromium.org
drivers/pci/pcie_ecam_generic.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-)
This breaks some platforms such as qemu_arm at a minimum.
Ok. How do I reproduce the issue?
Right, sorry. So the failure log is: https://source.denx.de/u-boot/u-boot/-/jobs/622397 And https://u-boot.readthedocs.io/en/latest/develop/py_testing.html talks about running the pytest suite outside of CI and https://u-boot.readthedocs.io/en/latest/develop/ci_testing.html about how to trigger CI yourself. One thing that's not documented well enough is that you'll likely want https://source.denx.de/u-boot/u-boot-test-hooks as well as you can just use as-is the "travis-ci" directories (legacy name, used by both gitlab and azure as-is) as the configuration hooks for your system as well and then the network tests will run easily, locally.
Any update on this one? It is:
https://source.denx.de/u-boot/custodians/u-boot-dm/-/issues/1
Regards, Simon
participants (3)
-
Mayuresh Chitale -
Simon Glass -
Tom Rini