Add initial clock driver for Allwinner R40.
- Implement USB bus and USB clocks via ccu_clk_map descriptor
for R40, so it can accessed in common clk enable and disable
functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset_map descriptor
for R40, so it can accessed in common reset deassert and assert
functions from reset-sunxi.c
Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
drivers/clk/sunxi/Kconfig | 7 +++
drivers/clk/sunxi/Makefile | 1 +
drivers/clk/sunxi/clk_r40.c | 89 +++++++++++++++++++++++++++++++++++++
3 files changed, 97 insertions(+)
create mode 100644 drivers/clk/sunxi/clk_r40.c
diff --git a/drivers/clk/sunxi/Kconfig b/drivers/clk/sunxi/Kconfig
index 90af70d171..c45a4ba378 100644
--- a/drivers/clk/sunxi/Kconfig
+++ b/drivers/clk/sunxi/Kconfig
@@ -44,6 +44,13 @@ config CLK_SUN8I_A83T
This enables common clock driver support for platforms based
on Allwinner A83T SoC.
+config CLK_SUN8I_R40
+ bool "Clock driver for Allwinner R40"
+ default MACH_SUN8I_R40
+ help
+ This enables common clock driver support for platforms based
+ on Allwinner R40 SoC.
+
config CLK_SUN8I_H3
bool "Clock driver for Allwinner H3/H5"
default MACH_SUNXI_H3_H5
diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile
index 4a254c8671..61f8b87396 100644
--- a/drivers/clk/sunxi/Makefile
+++ b/drivers/clk/sunxi/Makefile
@@ -11,5 +11,6 @@ obj-$(CONFIG_CLK_SUN5I_A10S) += clk_a10s.o
obj-$(CONFIG_CLK_SUN6I_A31) += clk_a31.o
obj-$(CONFIG_CLK_SUN8I_A23) += clk_a23.o
obj-$(CONFIG_CLK_SUN8I_A83T) += clk_a83t.o
+obj-$(CONFIG_CLK_SUN8I_R40) += clk_r40.o
obj-$(CONFIG_CLK_SUN8I_H3) += clk_h3.o
obj-$(CONFIG_CLK_SUN50I_A64) += clk_a64.o
diff --git a/drivers/clk/sunxi/clk_r40.c b/drivers/clk/sunxi/clk_r40.c
new file mode 100644
index 0000000000..746d6734b2
--- /dev/null
+++ b/drivers/clk/sunxi/clk_r40.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2018 Amarula Solutions.
+ * Author: Jagan Teki <ja...@amarulasolutions.com>
+ */
+
+#include <common.h>
+#include <clk-uclass.h>
+#include <dm.h>
+#include <errno.h>
+#include <asm/arch/ccu.h>
+#include <dt-bindings/clock/sun8i-r40-ccu.h>
+#include <dt-bindings/reset/sun8i-r40-ccu.h>
+
+static struct ccu_clk_map r40_clks[] = {
+ [CLK_BUS_OTG] = { 0x060, BIT(25), NULL },
+ [CLK_BUS_EHCI0] = { 0x060, BIT(26), NULL },
+ [CLK_BUS_EHCI1] = { 0x060, BIT(27), NULL },
+ [CLK_BUS_EHCI2] = { 0x060, BIT(28), NULL },
+ [CLK_BUS_OHCI0] = { 0x060, BIT(29), NULL },
+ [CLK_BUS_OHCI1] = { 0x060, BIT(30), NULL },
+ [CLK_BUS_OHCI2] = { 0x060, BIT(31), NULL },
+
+
+ [CLK_USB_PHY0] = { 0x0cc, BIT(8), NULL },
+ [CLK_USB_PHY1] = { 0x0cc, BIT(9), NULL },
+ [CLK_USB_PHY2] = { 0x0cc, BIT(10), NULL },
+ [CLK_USB_OHCI0] = { 0x0cc, BIT(16), NULL },
+ [CLK_USB_OHCI1] = { 0x0cc, BIT(17), NULL },
+ [CLK_USB_OHCI2] = { 0x0cc, BIT(18), NULL },
+};
+
+static struct ccu_reset_map r40_resets[] = {
+ [RST_USB_PHY0] = { 0x0cc, BIT(0) },
+ [RST_USB_PHY1] = { 0x0cc, BIT(1) },
+ [RST_USB_PHY2] = { 0x0cc, BIT(2) },
+
+ [RST_BUS_OTG] = { 0x2c0, BIT(25) },
+ [RST_BUS_EHCI0] = { 0x2c0, BIT(26) },
+ [RST_BUS_EHCI1] = { 0x2c0, BIT(27) },
+ [RST_BUS_EHCI2] = { 0x2c0, BIT(28) },
+ [RST_BUS_OHCI0] = { 0x2c0, BIT(29) },
+ [RST_BUS_OHCI1] = { 0x2c0, BIT(30) },
+ [RST_BUS_OHCI2] = { 0x2c0, BIT(31) },
+};
+
+static const struct ccu_desc sun8i_r40_ccu_desc = {
+ .clks = r40_clks,
+ .num_clks = ARRAY_SIZE(r40_clks),
+
+ .resets = r40_resets,
+ .num_resets = ARRAY_SIZE(r40_resets),
+};
+
+static int r40_clk_probe(struct udevice *dev)
+{
+ struct sunxi_clk_priv *priv = dev_get_priv(dev);
+
+ priv->base = dev_read_addr_ptr(dev);
+ if (!priv->base)
+ return -ENOMEM;
+
+ priv->desc = (const struct ccu_desc *)dev_get_driver_data(dev);
+ if (!priv->desc)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int r40_clk_bind(struct udevice *dev)
+{
+ return sunxi_reset_bind(dev, 80);
+}
+
+static const struct udevice_id r40_clk_ids[] = {
+ { .compatible = "allwinner,sun8i-r40-ccu",
+ .data = (ulong)&sun8i_r40_ccu_desc },
+ { }
+};
+
+U_BOOT_DRIVER(clk_sun8i_r40) = {
+ .name = "sun8i_r40_ccu",
+ .id = UCLASS_CLK,
+ .of_match = r40_clk_ids,
+ .priv_auto_alloc_size = sizeof(struct sunxi_clk_priv),
+ .ops = &sunxi_clk_ops,
+ .probe = r40_clk_probe,
+ .bind = r40_clk_bind,
+};
--
2.18.0.321.gffc6fa0e3
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