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authorDavid Lechner <david@lechnology.com>2018-03-16 05:52:23 +0300
committerStephen Boyd <sboyd@kernel.org>2018-03-20 20:16:26 +0300
commitd67c13eaf79b35bedb1e0bc405416afa3bd6ee04 (patch)
tree013f3f3cdd3522c91dd0300470c11ce1338171a1 /drivers/clk/davinci
parent650bba61fc3611e4a349fb323011fd3e7a228860 (diff)
downloadlinux-d67c13eaf79b35bedb1e0bc405416afa3bd6ee04.tar.xz
clk: davinci: Add platform information for TI DM644x PLL
This adds platform-specific declarations for the PLL clocks on TI DM644x based systems. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/davinci')
-rw-r--r--drivers/clk/davinci/Makefile1
-rw-r--r--drivers/clk/davinci/pll-dm644x.c80
-rw-r--r--drivers/clk/davinci/pll.c2
-rw-r--r--drivers/clk/davinci/pll.h3
4 files changed, 86 insertions, 0 deletions
diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
index 353aa021d3c2..59d8ab68c9ec 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 000000000000..69bf785377cf
--- /dev/null
+++ b/drivers/clk/davinci/pll-dm644x.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PLL clock descriptions for TI DM644X
+ *
+ * Copyright (C) 2018 David Lechner <david@lechnology.com>
+ */
+
+#include <linux/bitops.h>
+#include <linux/clkdev.h>
+#include <linux/init.h>
+#include <linux/types.h>
+
+#include "pll.h"
+
+static const struct davinci_pll_clk_info dm644x_pll1_info = {
+ .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,
+};
+
+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);
+
+int dm644x_pll1_init(struct device *dev, void __iomem *base)
+{
+ struct clk *clk;
+
+ davinci_pll_clk_register(dev, &dm644x_pll1_info, "ref_clk", base);
+
+ clk = davinci_pll_sysclk_register(dev, &pll1_sysclk1, base);
+ clk_register_clkdev(clk, "pll1_sysclk1", "dm644x-psc");
+
+ clk = davinci_pll_sysclk_register(dev, &pll1_sysclk2, base);
+ clk_register_clkdev(clk, "pll1_sysclk2", "dm644x-psc");
+
+ clk = davinci_pll_sysclk_register(dev, &pll1_sysclk3, base);
+ clk_register_clkdev(clk, "pll1_sysclk3", "dm644x-psc");
+
+ clk = davinci_pll_sysclk_register(dev, &pll1_sysclk5, base);
+ clk_register_clkdev(clk, "pll1_sysclk5", "dm644x-psc");
+
+ clk = davinci_pll_auxclk_register(dev, "pll1_auxclk", base);
+ clk_register_clkdev(clk, "pll1_auxclk", "dm644x-psc");
+
+ davinci_pll_sysclkbp_clk_register(dev, "pll1_sysclkbp", base);
+
+ return 0;
+}
+
+static const struct davinci_pll_clk_info dm644x_pll2_info = {
+ .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,
+};
+
+SYSCLK(1, pll2_sysclk1, pll2_pllen, 4, 0);
+SYSCLK(2, pll2_sysclk2, pll2_pllen, 4, 0);
+
+int dm644x_pll2_init(struct device *dev, void __iomem *base)
+{
+ davinci_pll_clk_register(dev, &dm644x_pll2_info, "oscin", base);
+
+ davinci_pll_sysclk_register(dev, &pll2_sysclk1, base);
+
+ davinci_pll_sysclk_register(dev, &pll2_sysclk2, 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 7e1f6721533a..4f86f35a70fd 100644
--- a/drivers/clk/davinci/pll.c
+++ b/drivers/clk/davinci/pll.c
@@ -784,6 +784,8 @@ 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 bf9fdc896fbc..d8af4f516253 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___ */