From: Lucas Stach <dev@lynxeye.de>
To: barebox@lists.infradead.org
Subject: [PATCH 4/4] ARM: zynq: zed: add QSPI flash support
Date: Wed, 18 Dec 2019 23:43:49 +0100 [thread overview]
Message-ID: <20191218224349.107261-4-dev@lynxeye.de> (raw)
In-Reply-To: <20191218224349.107261-1-dev@lynxeye.de>
Signed-off-by: Lucas Stach <dev@lynxeye.de>
---
arch/arm/boards/avnet-zedboard/lowlevel.c | 9 +++++++++
arch/arm/dts/zynq-zed.dts | 18 ++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/arch/arm/boards/avnet-zedboard/lowlevel.c b/arch/arm/boards/avnet-zedboard/lowlevel.c
index 9b90ef112b46..58f9e40d11c9 100644
--- a/arch/arm/boards/avnet-zedboard/lowlevel.c
+++ b/arch/arm/boards/avnet-zedboard/lowlevel.c
@@ -241,9 +241,18 @@ static void avnet_zedboard_ps7_init(void)
/* UART1 pinmux */
writel(0x000002E1, ZYNQ_MIO_BASE + 0xC8);
writel(0x000002E0, ZYNQ_MIO_BASE + 0xCC);
+ /* QSPI pinmux */
+ writel(0x00001602, ZYNQ_MIO_BASE + 0x04);
+ writel(0x00000702, ZYNQ_MIO_BASE + 0x08);
+ writel(0x00000702, ZYNQ_MIO_BASE + 0x0c);
+ writel(0x00000702, ZYNQ_MIO_BASE + 0x10);
+ writel(0x00000702, ZYNQ_MIO_BASE + 0x14);
+ writel(0x00000702, ZYNQ_MIO_BASE + 0x18);
+ writel(0x00000602, ZYNQ_MIO_BASE + 0x20);
/* poor mans clkctrl */
writel(0x00001403, ZYNQ_CLOCK_CTRL_BASE + ZYNQ_UART_CLK_CTRL);
+ writel(0x00000101, ZYNQ_CLOCK_CTRL_BASE + ZYNQ_LQSPI_CLK_CTRL);
/* GEM0 */
writel(0x00000001, 0xf8000138);
diff --git a/arch/arm/dts/zynq-zed.dts b/arch/arm/dts/zynq-zed.dts
index 52d68332499a..a6b1da854bc4 100644
--- a/arch/arm/dts/zynq-zed.dts
+++ b/arch/arm/dts/zynq-zed.dts
@@ -1,7 +1,25 @@
#include <arm/zynq-zed.dts>
+#include "zynq-7000.dtsi"
/ {
chosen {
stdout-path = &uart1;
};
};
+
+&qspi {
+ status = "okay";
+ num-cs = <1>;
+
+ qspi_flash: flash@0 {
+ compatible = "spansion,s25fl256s1", "jedec,spi-nor";
+ reg = <0>;
+ spi-tx-bus-width = <1>;
+ spi-rx-bus-width = <4>;
+ spi-max-frequency = <50000000>;
+ m25p,fast-read;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+};
--
2.23.0
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next prev parent reply other threads:[~2019-12-18 22:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-18 22:43 [PATCH 1/4] clk: zynq: add QSPI reference clock Lucas Stach
2019-12-18 22:43 ` [PATCH 2/4] spi: add Zynq QSPI controller driver Lucas Stach
2019-12-18 22:43 ` [PATCH 3/4] ARM: zynq: add QSPI DT node Lucas Stach
2019-12-18 22:43 ` Lucas Stach [this message]
2019-12-20 15:11 ` [PATCH 1/4] clk: zynq: add QSPI reference clock Sascha Hauer
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