On 02/06/2018 06:48 PM, Jagan Teki wrote:
On Tue, Feb 6, 2018 at 6:44 PM, Stefan Mavrodiev <ste...@olimex.com> wrote:
Driver testing is done with A20-OLinuXino-Lime2. Testing
requirements are:
- Exposing spi0 alternative pins in the dts file
- Add alias node, enabling driver probing
- Add flash sub-node of spi
- Enable spi flash related options in the defconfig file
The testing log is:
U-Boot SPL 2018.03-rc1-00075-g35a689a-dirty (Feb 06 2018 - 14:40:07 +0200)
DRAM: 1024 MiB
CPU: 912000000Hz, AXI/AHB/APB: 3/2/2
Trying to boot from FEL
Why FEL? can't it boot from SPI-FLASH?
Because I previously erased the flash during testing. Here is same,
booting from SPI:
U-Boot SPL 2018.03-rc1-00075-g61ce225 (Feb 07 2018 - 08:21:07 +0200)
DRAM: 1024 MiB
CPU: 912000000Hz, AXI/AHB/APB: 3/2/2
Trying to boot from sunxi SPI
U-Boot 2018.03-rc1-00075-g61ce225 (Feb 07 2018 - 08:21:07 +0200)
Allwinner Technology
CPU: Allwinner A20 (SUN7I)
Model: Olimex A20-OLinuXino-LIME2
I2C: ready
DRAM: 1 GiB
MMC: SUNXI SD/MMC: 0
Loading Environment from SPI Flash... SF: Detected w25q128bv with
page size 256 Bytes, erase size 4 KiB, total 16 MiB
OK
In: serial
Out: serial
Err: serial
Allwinner mUSB OTG (Peripheral)
SCSI: SATA link 0 timeout.
AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: ncq stag pm led clo only pmp pio slum part ccc apst
Net: No ethernet found.
starting USB...
USB0: USB EHCI 1.00
USB1: USB OHCI 1.0
USB2: USB EHCI 1.00
USB3: USB OHCI 1.0
scanning bus 0 for devices... 1 USB Device(s) found
scanning bus 2 for devices... 1 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
Hit any key to stop autoboot:
U-Boot 2018.03-rc1-00075-g35a689a-dirty (Feb 06 2018 - 14:40:07 +0200)
Allwinner Technology
CPU: Allwinner A20 (SUN7I)
Model: Olimex A20-OLinuXino-LIME2
I2C: ready
DRAM: 1 GiB
MMC: SUNXI SD/MMC: 0
Loading Environment from SPI Flash... SF: Detected w25q128bv with page size
256 Bytes, erase size 4 KiB, total 16 MiB
OK
In: serial
Out: serial
Err: serial
Allwinner mUSB OTG (Peripheral)
SCSI: SATA link 0 timeout.
AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: ncq stag pm led clo only pmp pio slum part ccc apst
Net: No ethernet found.
starting USB...
USB0: USB EHCI 1.00
USB1: USB OHCI 1.0
USB2: USB EHCI 1.00
USB3: USB OHCI 1.0
scanning bus 0 for devices... 1 USB Device(s) found
scanning bus 2 for devices... 1 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
Hit any key to stop autoboot: 0
# Probe device
=> sf probe
SF: Detected w25q128bv with page size 256 Bytes, erase size 4 KiB, total 16
MiB
How did this resolved w/o sspi?
I enabled both CONFIG_SPI_FLASH and CONFIG_DM_SPI_FLASH. The
driver-model search for
"spi-flash" compatible string, probe it and bind it to the spi driver.
# Erase
=> sf erase 0x1000 0x100
SF: 256 bytes @ 0x1000 Erased: ERROR
=> sf erase 0x1000 0x1000
SF: 4096 bytes @ 0x1000 Erased: OK
# Test
=> sf test 0 100000
SPI flash test:
0 erase: 12104 ticks, 84 KiB/s 0.672 Mbps
1 check: 8881 ticks, 115 KiB/s 0.920 Mbps
2 write: 10824 ticks, 94 KiB/s 0.752 Mbps
3 read: 8872 ticks, 115 KiB/s 0.920 Mbps
Test passed
0 erase: 12104 ticks, 84 KiB/s 0.672 Mbps
1 check: 8881 ticks, 115 KiB/s 0.920 Mbps
2 write: 10824 ticks, 94 KiB/s 0.752 Mbps
3 read: 8872 ticks, 115 KiB/s 0.920 Mbps
# Try write/read
=> sf erase 0x1000 0x1000
SF: 4096 bytes @ 0x1000 Erased: OK
=> md.b 0x50000000 0x100
50000000: a9 4d b7 68 d2 48 69 c3 09 78 fa d3 33 66 e9 53 .M.h.Hi..x..3f.S
50000010: b0 53 af 79 ad 33 79 b1 f1 e3 1d 09 2e ba dd dc .S.y.3y.........
50000020: 8c eb eb 53 f4 ef 66 89 b5 e9 f6 fb af 73 7f cb ...S..f......s..
50000030: b6 4b bf de c3 fd de bb 9a 53 ad 7d ef 38 6f bf .K.......S.}.8o.
50000040: fd fb e7 5e e9 db fc 0c fc f7 be 76 ad b9 fd eb ...^.......v....
50000050: f3 ed 5f b5 bb bd ba 8f ff df 1f bf f3 ff fb d7 .._.............
50000060: b7 6e 9e 5f af 7a 62 ed 7f 66 1b 6d fd fb 47 f7 .n._.zb..f.m..G.
50000070: b7 fa f4 db d5 b6 d5 ff 81 e6 f5 d9 8f ef ff db ................
50000080: b7 dd bd fb f3 1d 9d 2f f6 db c8 7f fb cf b9 f3 ......./........
50000090: 3c ee da 2f b7 5e 6f bc f1 2f 2b cf 3f f2 fb ee <../.^o../+.?...
500000a0: 6f 5e 99 c3 3b 51 bd d4 be 40 4e db ab ed f9 77 o^..;Q...@N....w
500000b0: 9f f6 7d ed 54 4a 68 f8 7d ee 53 9b ff ae ef e4 ..}.TJh.}.S.....
500000c0: 73 ff 3c c7 f7 df f6 be bf 0f 97 96 3d 9b 9e 9f s.<.........=...
500000d0: e4 49 ca ff be fa ff df f7 7a cf ab 7f 7a 7b cf .I.......z...z{.
500000e0: bb c7 9f 3f c1 99 f2 f2 bf ee cf fb d5 b9 e2 e8 ...?............
500000f0: ec e8 b2 bd 21 1f 5a ef 7a 7d 9d ad 31 89 3f 6f ....!.Z.z}..1.?o
=> sf write 0x50000000 0x1000 0x100
device 0 offset 0x1000, size 0x100
SF: 256 bytes @ 0x1000 Written: OK
=> sf read 0x51000000 0x1000 0x100
device 0 offset 0x1000, size 0x100
SF: 256 bytes @ 0x1000 Read: OK
=> cmp.b 0x50000000 0x51000000 0x100
Total of 256 byte(s) were the same
Signed-off-by: Stefan Mavrodiev <ste...@olimex.com>
---
arch/arm/dts/sun7i-a20-olinuxino-lime2.dts | 30 ++++++++++++++++++++++++++++++
configs/A20-OLinuXino-Lime2_defconfig | 11 +++++++++++
drivers/mtd/spi/Makefile | 4 +++-
include/configs/sunxi-common.h | 2 ++
4 files changed, 46 insertions(+), 1 deletion(-)
diff --git a/arch/arm/dts/sun7i-a20-olinuxino-lime2.dts
b/arch/arm/dts/sun7i-a20-olinuxino-lime2.dts
index d5c796c..a6ee87c 100644
--- a/arch/arm/dts/sun7i-a20-olinuxino-lime2.dts
+++ b/arch/arm/dts/sun7i-a20-olinuxino-lime2.dts
@@ -54,6 +54,7 @@
aliases {
serial0 = &uart0;
+ spi0 = &spi0;
};
chosen {
@@ -215,6 +216,20 @@
allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
};
+ spi0_pins_b: spi0@1 {
+ allwinner,pins = "PC0", "PC1", "PC2";
+ allwinner,function = "spi0";
+ allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+ allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+ };
+
+ spi0_cs0_pins_b: spi0_cs0@1 {
+ allwinner,pins = "PC23";
+ allwinner,function = "spi0";
+ allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+ allw inner,pull = <SUN4I_PINCTRL_NO_PULL>;
+ };
+
usb0_id_detect_pin: usb0_id_detect_pin@0 {
allwinner,pins = "PH4";
allwinner,function = "gpio_in";
@@ -257,6 +272,21 @@
status = "okay";
};
+&spi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_pins_b>, <&spi0_cs0_pins_b>;
+ status = "okay";
+
+ flash: w25q128@0 {
Was it sync from Linux?
No, this isn't in the linux dts.
I think as per binding docs
[label:] node-name[@unit-address]
vendor: subsys-nane[@0]
w25q128: spi-nor@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "winbond,w25q128", "jedec,spi-nor", "spi-flash";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ status = "okay";
+ };
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
diff --git a/configs/A20-OLinuXino-Lime2_defconfig
b/configs/A20-OLinuXino-Lime2_defconfig
index 1edc844..da5ca34 100644
--- a/configs/A20-OLinuXino-Lime2_defconfig
+++ b/configs/A20-OLinuXino-Lime2_defconfig
@@ -30,3 +30,14 @@ CONFIG_SCSI=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_MUSB_GADGET=y
CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SF_TEST=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPL_SPI_SUNXI=y
+CONFIG_DM_SPI=y
+CONFIG_SUN4I_SPI=y
+# CONFIG_ENV_IS_IN_FAT is not set
+# CONFIG_ENV_IS_IN_MMC is not set
+CONFIG_ENV_IS_IN_SPI_FLASH=y
diff --git a/drivers/mtd/spi/Makefile b/drivers/mtd/spi/Makefile
index fcda023..d4a5fbd 100644
--- a/drivers/mtd/spi/Makefile
+++ b/drivers/mtd/spi/Makefile
@@ -10,9 +10,11 @@ obj-$(CONFIG_DM_SPI_FLASH) += sf-uclass.o
ifdef CONFIG_SPL_BUILD
obj-$(CONFIG_SPL_SPI_BOOT) += fsl_espi_spl.o
obj-$(CONFIG_SPL_SPI_SUNXI) += sunxi_spi_spl.o
+else
+obj-$(CONFIG_SPI_FLASH) += sf_probe.o
endif
This will break SPL build with sf_probe.c and even we can unnecessary
build other SPI_FLASH files.
Yes, but if both DM and legacy drivers are enabled u-boot won't build.
From what I can understand,
sf-uclass is some kind of wrapper of sf_probe. Maybe sf_probe needs some
rework, because it uses
functions not available during spl build. Thats why I exclude it during
spl, because after all this is
test case, not actual patch.
Regards,
Stefan Mavrodiev
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