Hello,
When I enable SPI support I do not get a SPI bus.
Config:
--- a/configs/orangepi_zero_defconfig
+++ b/configs/orangepi_zero_defconfig
@@ -11,3 +11,21 @@ CONFIG_CONSOLE_MUX=y
CONFIG_SUN8I_EMAC=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_SF_TEST=y
+CONFIG_SPI_FLASH_SFDP_SUPPORT=y
+CONFIG_SPI_FLASH_ATMEL=y
+CONFIG_SPI_FLASH_EON=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_ISSI=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_SST=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI_FLASH_XMC=y
+CONFIG_SPI_FLASH_DATAFLASH=y
DT (which lists the flash types so did not really have to enable them all)
--- a/arch/arm/dts/sun8i-h2-plus-orangepi-zero.dts
+++ b/arch/arm/dts/sun8i-h2-plus-orangepi-zero.dts
@@ -163,10 +163,11 @@
};
&spi0 {
- /* Disable SPI NOR by default: it optional on Orange Pi Zero boards */
- status = "disabled";
+ /* Enable SPI NOR by default: it optional on Orange Pi Zero boards */
+ status = "okay";
flash@0 {
+ status = "okay";
#address-cells = <1>;
#size-cells = <1>;
compatible = "mxicy,mx25l1606e", "winbond,w25q128";
The guide on debugging says to add dm_dump_all
--- a/drivers/spi/spi-uclass.c
+++ b/drivers/spi/spi-uclass.c
@@ -328,6 +328,7 @@ int spi_get_bus_and_cs(int busnum, int cs, int speed, int
mode,
bool created = false;
int ret;
+ dm_dump_all();
#if CONFIG_IS_ENABLED(OF_PLATDATA)
ret = uclass_first_device_err(UCLASS_SPI, &bus);
#else
which prints
Class Index Probed Driver Name
-----------------------------------------------------------
root 0 [ + ] root_driver root_driver
simple_bus 0 [ + ] simple_bus |-- soc
mmc 0 [ + ] sunxi_mmc | |-- mmc@1c0f000
blk 0 [ ] mmc_blk | | `-- m...@1c0f000.blk
mmc 1 [ + ] sunxi_mmc | |-- mmc@1c10000
blk 1 [ ] mmc_blk | | `-- m...@1c10000.blk
phy 0 [ ] sun4i_usb_phy | |-- phy@1c19400
usb 0 [ ] ehci_generic | |-- usb@1c1a000
usb 1 [ ] ohci_generic | |-- usb@1c1a400
usb 2 [ ] ehci_generic | |-- usb@1c1b000
usb 3 [ ] ohci_generic | |-- usb@1c1b400
clk 0 [ + ] sun8i_h3_ccu | |-- clock@1c20000
reset 0 [ + ] sunxi_reset | | `-- reset
gpio 0 [ + ] gpio_sunxi | |-- pinctrl@1c20800
gpio 1 [ + ] gpio_sunxi | | |-- PA
gpio 2 [ + ] gpio_sunxi | | |-- PB
gpio 3 [ + ] gpio_sunxi | | |-- PC
gpio 4 [ + ] gpio_sunxi | | |-- PD
gpio 5 [ + ] gpio_sunxi | | |-- PE
gpio 6 [ + ] gpio_sunxi | | |-- PF
gpio 7 [ + ] gpio_sunxi | | |-- PG
gpio 8 [ + ] gpio_sunxi | | |-- PH
gpio 9 [ + ] gpio_sunxi | | `-- PI
eth 0 [ + ] eth_sun8i_emac | |-- ethernet@1c30000
spi 0 [ ] sun4i_spi | |-- spi@1c68000
serial 0 [ + ] ns16550_serial | |-- serial@1c28000
gpio 10 [ + ] gpio_sunxi | `-- pinctrl@1f02c00
gpio 11 [ + ] gpio_sunxi | `-- PL
clk 1 [ + ] fixed_rate_clock |-- osc24M_clk
clk 2 [ ] fixed_rate_clock `-- osc32k_clk
Invalid bus 0 (err=-19)
-19 means ENODEV according to my /usr/include/asm-generic/errno-base.h
Debug prints added to sunxi driver are never printed:
--- a/drivers/spi/spi-sunxi.c
+++ b/drivers/spi/spi-sunxi.c
@@ -305,6 +305,7 @@ static int sun4i_spi_claim_bus(struct udevice *dev)
{
struct sun4i_spi_priv *priv = dev_get_priv(dev->parent);
int ret;
+ printf("sun4i_spi_claim_bus\n");
ret = sun4i_spi_set_clock(dev->parent, true);
if (ret)
@@ -487,6 +488,8 @@ static int sun4i_spi_probe(struct udevice *bus)
struct sun4i_spi_priv *priv = dev_get_priv(bus);
int ret;
+ printf("sun4i_spi_probe\n");
+
ret = clk_get_by_name(bus, "ahb", &priv->clk_ahb);
if (ret) {
dev_err(dev, "failed to get ahb clock\n");
AFAICT the device tree compatible matches the one in the driver.
How do I make u-boot run the driver?
Thanks
Michal
