This adds platform-specific declarations for the PLL clocks on TI
DM644x based systems.
Signed-off-by: David Lechner <david@xxxxxxxxxxxxxx>
---
v7 changes:
- split registration functions for each PLL
- Add platform_device_id lookup
v6 changes:
- Added dm644x_pll{1,2}_info with controller-specific information
- Add empty lines between function calls
drivers/clk/davinci/Makefile | 1 +
drivers/clk/davinci/pll-dm644x.c | 76 ++++++++++++++++++++++++++++++++++++++++
drivers/clk/davinci/pll.c | 2 ++
drivers/clk/davinci/pll.h | 3 ++
4 files changed, 82 insertions(+)
create mode 100644 drivers/clk/davinci/pll-dm644x.c
diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
index 353aa02..59d8ab6 100644
--- a/drivers/clk/davinci/Makefile
+++ b/drivers/clk/davinci/Makefile
@@ -6,4 +6,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DA830) += pll-da830.o
obj-$(CONFIG_ARCH_DAVINCI_DA850) += pll-da850.o
obj-$(CONFIG_ARCH_DAVINCI_DM355) += pll-dm355.o
obj-$(CONFIG_ARCH_DAVINCI_DM365) += pll-dm365.o
+obj-$(CONFIG_ARCH_DAVINCI_DM644x) += pll-dm644x.o
endif
diff --git a/drivers/clk/davinci/pll-dm644x.c b/drivers/clk/davinci/pll-dm644x.c
new file mode 100644
index 0000000..cb31aa0
--- /dev/null
+++ b/drivers/clk/davinci/pll-dm644x.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PLL clock descriptions for TI DM644X
+ *
+ * Copyright (C) 2018 David Lechner <david@xxxxxxxxxxxxxx>
+ */
+
+#include <linux/bitops.h>
+#include <linux/init.h>
+#include <linux/types.h>
+
+#include "pll.h"
+
+static const struct davinci_pll_clk_info dm644x_pll1_info __initconst = {
+ .name = "pll1",
+ .pllm_mask = GENMASK(4, 0),
+ .pllm_min = 1,
+ .pllm_max = 32,
+ .pllout_min_rate = 400000000,
+ .pllout_max_rate = 600000000, /* 810MHz @ 1.3V, -810 only */
+ .flags = PLL_HAS_CLKMODE | PLL_HAS_POSTDIV,
+};
+
+static const struct davinci_pll_sysclk_info dm644x_pll1_sysclk_info[] __initconst = {
+ SYSCLK(1, pll1_sysclk1, pll1_pllen, 4, SYSCLK_FIXED_DIV),
+ SYSCLK(2, pll1_sysclk2, pll1_pllen, 4, SYSCLK_FIXED_DIV),
+ SYSCLK(3, pll1_sysclk3, pll1_pllen, 4, SYSCLK_FIXED_DIV),
+ SYSCLK(5, pll1_sysclk5, pll1_pllen, 4, SYSCLK_FIXED_DIV),
+ { }
+};
+
+static const struct davinci_pll_clk_info dm644x_pll2_info __initconst = {
+ .name = "pll2",
+ .pllm_mask = GENMASK(4, 0),
+ .pllm_min = 1,
+ .pllm_max = 32,
+ .pllout_min_rate = 400000000,
+ .pllout_max_rate = 900000000,
+ .flags = PLL_HAS_POSTDIV | PLL_POSTDIV_FIXED_DIV,
+};
+
+static const struct davinci_pll_sysclk_info dm644x_pll2_sysclk_info[] __initconst = {
+ SYSCLK(1, pll2_sysclk1, pll2_pllen, 4, 0),
+ SYSCLK(2, pll2_sysclk2, pll2_pllen, 4, 0),
+ { }
+};
+
+int __init dm644x_pll1_init(struct device *dev, void __iomem *base)
+{
+ const struct davinci_pll_sysclk_info *info;
+
+ davinci_pll_clk_register(dev, &dm644x_pll1_info, "ref_clk", base);
+
+ for (info = dm644x_pll1_sysclk_info; info->name; info++)
+ davinci_pll_sysclk_register(dev, info, base);
+
+ davinci_pll_auxclk_register(dev, "pll1_auxclk", base);
+
+ davinci_pll_sysclkbp_clk_register(dev, "pll1_sysclkbp", base);
+
+ return 0;
+}
+
+int __init dm644x_pll2_init(struct device *dev, void __iomem *base)
+{
+ const struct davinci_pll_sysclk_info *info;
+
+ davinci_pll_clk_register(dev, &dm644x_pll2_info, "oscin", base);
+
+ for (info = dm644x_pll2_sysclk_info; info->name; info++)
+ davinci_pll_sysclk_register(dev, info, base);
+
+ davinci_pll_sysclkbp_clk_register(dev, "pll2_sysclkbp", base);
+
+ return 0;
+}
diff --git a/drivers/clk/davinci/pll.c b/drivers/clk/davinci/pll.c
index c8dd3fa..613ec24 100644
--- a/drivers/clk/davinci/pll.c
+++ b/drivers/clk/davinci/pll.c
@@ -760,6 +760,8 @@ static const struct platform_device_id davinci_pll_id_table[] = {
{ .name = "dm355-pll2", .driver_data = (kernel_ulong_t)dm355_pll2_init },
{ .name = "dm365-pll1", .driver_data = (kernel_ulong_t)dm365_pll1_init },
{ .name = "dm365-pll2", .driver_data = (kernel_ulong_t)dm365_pll2_init },
+ { .name = "dm644x-pll1", .driver_data = (kernel_ulong_t)dm644x_pll1_init },
+ { .name = "dm644x-pll2", .driver_data = (kernel_ulong_t)dm644x_pll2_init },
{ }
};
diff --git a/drivers/clk/davinci/pll.h b/drivers/clk/davinci/pll.h
index b911c8a..df977a6 100644
--- a/drivers/clk/davinci/pll.h
+++ b/drivers/clk/davinci/pll.h
@@ -132,4 +132,7 @@ int dm355_pll2_init(struct device *dev, void __iomem *base);
int dm365_pll1_init(struct device *dev, void __iomem *base);
int dm365_pll2_init(struct device *dev, void __iomem *base);
+int dm644x_pll1_init(struct device *dev, void __iomem *base);
+int dm644x_pll2_init(struct device *dev, void __iomem *base);
+
#endif /* __CLK_DAVINCI_PLL_H___ */
--
2.7.4
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