From: Michal Simek michal.simek@xilinx.com
This patch added support to read register base address from DTS file.
Signed-off-by: Michal Simek michal.simek@xilinx.com Signed-off-by: Vipul Kumar vipul.kumar@xilinx.com --- drivers/spi/xilinx_spi.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-)
diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c index 8f0f32f..615106b 100644 --- a/drivers/spi/xilinx_spi.c +++ b/drivers/spi/xilinx_spi.c @@ -77,10 +77,6 @@ #define CONFIG_XILINX_SPI_IDLE_VAL GENMASK(7, 0) #endif
-#ifndef CONFIG_SYS_XILINX_SPI_LIST -#define CONFIG_SYS_XILINX_SPI_LIST { CONFIG_SYS_SPI_BASE } -#endif - /* xilinx spi register set */ struct xilinx_spi_regs { u32 __space0__[7]; @@ -105,16 +101,14 @@ struct xilinx_spi_priv { struct xilinx_spi_regs *regs; unsigned int freq; unsigned int mode; + unsigned int fifo_depth; };
-static unsigned long xilinx_spi_base_list[] = CONFIG_SYS_XILINX_SPI_LIST; static int xilinx_spi_probe(struct udevice *bus) { struct xilinx_spi_priv *priv = dev_get_priv(bus); struct xilinx_spi_regs *regs = priv->regs;
- priv->regs = (struct xilinx_spi_regs *)xilinx_spi_base_list[bus->seq]; - writel(SPISSR_RESET_VALUE, ®s->srr);
return 0; @@ -285,6 +279,21 @@ static const struct dm_spi_ops xilinx_spi_ops = { .set_mode = xilinx_spi_set_mode, };
+static int xilinx_spi_ofdata_to_platdata(struct udevice *bus) +{ + struct xilinx_spi_priv *priv = dev_get_priv(bus); + struct udevice *dev = dev_get_parent(bus); + + priv->regs = (struct xilinx_spi_regs *)devfdt_get_addr(bus); + + debug("%s: regs=%p\n", __func__, priv->regs); + + priv->fifo_depth = fdtdec_get_int(gd->fdt_blob, dev_of_offset(bus), + "fifo-size", 0); + + return 0; +} + static const struct udevice_id xilinx_spi_ids[] = { { .compatible = "xlnx,xps-spi-2.00.a" }, { .compatible = "xlnx,xps-spi-2.00.b" }, @@ -296,6 +305,7 @@ U_BOOT_DRIVER(xilinx_spi) = { .id = UCLASS_SPI, .of_match = xilinx_spi_ids, .ops = &xilinx_spi_ops, + .ofdata_to_platdata = xilinx_spi_ofdata_to_platdata, .priv_auto_alloc_size = sizeof(struct xilinx_spi_priv), .probe = xilinx_spi_probe, }; -- 2.7.4
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