From: Frank Lee <frank@allwinnertech.com>
To: vkoul@kernel.org, robh+dt@kernel.org, mripard@kernel.org,
wens@csie.org, ulf.hansson@linaro.org, kishon@ti.com,
wim@linux-watchdog.org, linux@roeck-us.net,
dan.j.williams@intel.com, linus.walleij@linaro.org,
wsa+renesas@sang-engineering.com, dianders@chromium.org,
marex@denx.de, colin.king@canonical.com, rdunlap@infradead.org,
krzk@kernel.org, gregkh@linuxfoundation.org, megous@megous.com,
rikard.falkeborn@gmail.com, dmaengine@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org,
linux-watchdog@vger.kernel.org, linux-gpio@vger.kernel.org,
tiny.windzz@gmail.com
Cc: Yangtao Li <frank@allwinnertech.com>
Subject: [PATCH 05/19] dmaengine: sun6i: Add support for A100 DMA
Date: Tue, 10 Nov 2020 12:05:39 +0800 [thread overview]
Message-ID: <20201110040553.1381-6-frank@allwinnertech.com> (raw)
In-Reply-To: <20201110040553.1381-1-frank@allwinnertech.com>
From: Yangtao Li <frank@allwinnertech.com>
The dma of a100 is similar to h6, with some minor changes to
support greater addressing capabilities.
Add support for it.
Signed-off-by: Yangtao Li <frank@allwinnertech.com>
---
drivers/dma/sun6i-dma.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c
index f5f9c86c50bc..5cadd4d2b824 100644
--- a/drivers/dma/sun6i-dma.c
+++ b/drivers/dma/sun6i-dma.c
@@ -1173,6 +1173,30 @@ static struct sun6i_dma_config sun50i_a64_dma_cfg = {
BIT(DMA_SLAVE_BUSWIDTH_8_BYTES),
};
+/*
+ * TODO: Add support for more than 4g physical addressing.
+ *
+ * The A100 binding uses the number of dma channels from the
+ * device tree node.
+ */
+static struct sun6i_dma_config sun50i_a100_dma_cfg = {
+ .clock_autogate_enable = sun6i_enable_clock_autogate_h3,
+ .set_burst_length = sun6i_set_burst_length_h3,
+ .set_drq = sun6i_set_drq_h6,
+ .set_mode = sun6i_set_mode_h6,
+ .src_burst_lengths = BIT(1) | BIT(4) | BIT(8) | BIT(16),
+ .dst_burst_lengths = BIT(1) | BIT(4) | BIT(8) | BIT(16),
+ .src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |
+ BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |
+ BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) |
+ BIT(DMA_SLAVE_BUSWIDTH_8_BYTES),
+ .dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |
+ BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |
+ BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) |
+ BIT(DMA_SLAVE_BUSWIDTH_8_BYTES),
+ .has_mbus_clk = true,
+};
+
/*
* The H6 binding uses the number of dma channels from the
* device tree node.
@@ -1225,6 +1249,7 @@ static const struct of_device_id sun6i_dma_match[] = {
{ .compatible = "allwinner,sun8i-h3-dma", .data = &sun8i_h3_dma_cfg },
{ .compatible = "allwinner,sun8i-v3s-dma", .data = &sun8i_v3s_dma_cfg },
{ .compatible = "allwinner,sun50i-a64-dma", .data = &sun50i_a64_dma_cfg },
+ { .compatible = "allwinner,sun50i-a100-dma", .data = &sun50i_a100_dma_cfg },
{ .compatible = "allwinner,sun50i-h6-dma", .data = &sun50i_h6_dma_cfg },
{ /* sentinel */ }
};
--
2.28.0
next prev parent reply other threads:[~2020-11-10 4:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-10 4:05 [PATCH 00/19] Second step support for A100 Frank Lee
2020-11-10 4:05 ` [PATCH 01/19] pinctrl: sunxi: fix irq bank map for the Allwinner A100 pin controller Frank Lee
2020-11-10 4:05 ` [PATCH 02/19] pinctrl: sunxi: Mark the irq bank not found in sunxi_pinctrl_irq_handler() with WARN_ON Frank Lee
2020-11-10 4:05 ` [PATCH 03/19] pinctrl: sunxi: Always call chained_irq_{enter, exit} in sunxi_pinctrl_irq_handler Frank Lee
2020-11-10 4:05 ` [PATCH 04/19] dt-bindings: dma: allwinner,sun50i-a64-dma: Add A100 compatible Frank Lee
2020-11-10 4:05 ` Frank Lee [this message]
2020-11-10 4:05 ` [PATCH 06/19] arm64: allwinner: a100: Add device node for DMA controller Frank Lee
2020-11-10 4:05 ` [PATCH 07/19] arm64: dts: allwinner: A100: Add PMU mode Frank Lee
2020-11-10 4:05 ` [PATCH 08/19] phy: sun4i-usb: remove enable_pmu_unk1 from sun50i_h6_cfg Frank Lee
2020-11-10 4:05 ` [PATCH 09/19] phy: allwinner: Convert to devm_platform_ioremap_* API Frank Lee
2020-11-10 6:00 ` [PATCH 00/19] Second step support for A100 Frank Lee
2020-11-10 8:43 ` Krzysztof Kozlowski
2020-11-10 8:51 ` Frank Lee
2020-11-10 12:48 ` Vinod Koul
2020-11-10 12:55 ` maxime
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