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Pali Rohár d9ac6e28af arm: a37xx: pci: Implement re-issuing config requests on CRS response 
According to PCIe base specification, if CRS Software Visibility is not
enabled, the Root Complex must re-issue the Configuration Request as a new
Request.

Normally this part of Root Complex is implemented in hardware but aardvark
is somehow special and does not implement it in hardware and expect that
handling of config requests are fully implemented in software.

This re-issuing functionality is required also because U-Boot does not
support CRS Software Visibility feature and therefore expects that Root
Complex re-issues requests as is specified in PCIe base specification.

Retry / re-issue config request up to the PIO_MAX_RETRIES, to prevent
infinite loop. After retry count exceed PIO_MAX_RETRIES, returns failure.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2021-09-10 09:01:51 +02:00
..
adc dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
ata arm: mvebu: sata_mv failed to identify HDDs during cold start 2021-08-11 08:42:26 +02:00
axi dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
bios_emulator pci: Drop DM_PCI check from bios_emul 2021-08-05 19:46:35 -04:00
block blk: Support iteration 2021-07-21 10:27:35 -06:00
bootcount bootcount: add a new driver with syscon as backend 2021-08-22 11:04:52 +02:00
bus bus: ti-sysc: change in a normal driver 2021-03-22 19:23:27 +13:00
button dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
cache cache: add sifive composable cache driver 2021-09-07 10:34:29 +08:00
clk drivers: clk: Add memory clock driver for Intel N5X device 2021-08-25 12:55:13 +08:00
core dm: core: Don't allow uclass use before ready 2021-08-08 11:27:27 -06:00
cpu dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
crypto image: Drop if/elseif hash selection in calculate_hash() 2021-09-08 16:12:09 -04:00
ddr ddr: altera: Add SDRAM driver for Intel N5X device 2021-08-25 13:47:05 +08:00
demo common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
dfu global: Convert simple_strtoul() with decimal to dectoul() 2021-08-02 13:32:14 -04:00
dma dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
fastboot Fix flashing of eMMC user area with Fastboot 2021-08-21 18:23:02 -04:00
firmware psci: Do not define do_poweroff() if CONFIG_SYSRESET_CMD_POWEROFF is enabled 2021-07-26 09:18:45 +02:00
fpga arm: socfpga: Move Stratix10 and Agilex to use TARGET_SOCFPGA_SOC64 2021-03-08 10:59:10 +08:00
gpio gpio: mcp230xx: Introduce new driver 2021-08-22 10:53:14 +02:00
hwspinlock dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
i2c riscv: Add missing sentinel in ocores_i2c.c 2021-09-07 10:34:29 +08:00
input dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
led dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
mailbox dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
memory memory: stm32-fmc2: migrate trace to dev and log macro 2021-01-13 09:52:58 +01:00
misc imx8ulp: move struct mu_type to common header 2021-08-09 14:46:51 +02:00
mmc Xilinx changes for v2021.10-rc3 2021-08-27 08:33:02 -04:00
mtd Merge tag 'u-boot-rockchip-20210812' of https://source.denx.de/u-boot/custodians/u-boot-rockchip 2021-08-12 09:33:39 -04:00
mux dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
net net: cortina: Add support for tfa boot in cortina firmware 2021-08-18 15:55:15 +05:30
nvme dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
pch dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
pci arm: a37xx: pci: Implement re-issuing config requests on CRS response 2021-09-10 09:01:51 +02:00
pci_endpoint dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
phy Merge tag 'ti-v2021.10-rc2' of https://source.denx.de/u-boot/custodians/u-boot-ti 2021-07-29 08:20:06 -04:00
pinctrl pinctrl: Add pinctrl driver for imx8ulp 2021-08-09 14:46:51 +02:00
power global: Convert simple_strtoul() with hex to hextoul() 2021-08-02 13:32:14 -04:00
pwm dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
qe global: Convert simple_strtoul() with hex to hextoul() 2021-08-02 13:32:14 -04:00
ram global: Convert simple_strtoul() with decimal to dectoul() 2021-08-02 13:32:14 -04:00
reboot-mode reboot-mode: read the boot mode from RTC memory 2021-07-23 10:16:39 -04:00
remoteproc remoteproc: pru: Add support for various PRU cores on K3 AM65x SoCs 2021-07-15 17:56:04 +05:30
reset reset: zynqmp: Add reset controller for ZynqMP SoC 2021-08-06 09:32:03 +02:00
rng dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
rtc rtc: zynqmp: Add support for ZynqMP RTC 2021-08-06 09:32:02 +02:00
scsi pci: scsi: pci: Drop DM_PCI check from scsi 2021-08-05 19:46:35 -04:00
serial global: Convert simple_strtoul() with decimal to dectoul() 2021-08-02 13:32:14 -04:00
smem dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
soc soc: xilinx: versal: Add soc_xilinx_versal driver 2021-08-26 08:08:11 +02:00
sound dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
spi spi: zynqmp_gqspi: Fix dma alignment issue 2021-09-03 09:15:01 +02:00
spmi dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
sysinfo sysinfo: rcar3: Add Renesas R-Car Gen3 sysinfo driver 2021-07-20 23:33:54 +02:00
sysreset sysreset: provide type of reset in do_reset cmd 2021-04-20 07:31:12 -04:00
tee tee: optee: sync cache on pre-reloc OP-TEE invocation 2021-07-23 07:13:25 -04:00
thermal dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
timer x86: tsc: Rename X86_TSC_TIMER_EARLY_FREQ to X86_TSC_TIMER_FREQ 2021-08-02 15:11:40 +08:00
tpm sandbox: tpm: Support extending a PCR multiple times 2021-08-01 09:05:24 -06:00
ufs dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
usb pci: usb: ohci: Test on PCI not DM_PCI 2021-08-05 19:45:54 -04:00
video - add display driver for ST-Ericsson MCDE 2021-08-06 13:46:40 -04:00
virtio dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
w1 various minor sandbox improvements 2021-07-07 13:34:42 -04:00
w1-eeprom dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
watchdog watchdog: versal: Include header file needed for dev_ functions 2021-08-26 08:08:11 +02:00
xen dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
Kconfig reboot-mode: add support for reboot mode control 2021-07-23 10:16:39 -04:00
Makefile ddr: Add DDR driver for iMX8ULP 2021-08-09 14:46:51 +02:00