clk: davinci: Add platform information for TI DM365 PLL

This adds platform-specific declarations for the PLL clocks on TI
DM365 based systems.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
index 6720bd073a2799501c538c1a06f81e17928fa20a..353aa021d3c2aab03680b168efe30b9de9a8ab00 100644 (file)
--- a/drivers/clk/davinci/Makefile
+++ b/drivers/clk/davinci/Makefile
@@ -5,4 +5,5 @@ obj-y += pll.o
 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
 endif

diff --git a/drivers/clk/davinci/pll-dm365.c b/drivers/clk/davinci/pll-dm365.c
new file mode 100644 (file)
index 0000000..5f8d9f4
--- /dev/null
+++ b/drivers/clk/davinci/pll-dm365.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PLL clock descriptions for TI DM365
+ *
+ * Copyright (C) 2018 David Lechner <david@lechnology.com>
+ */
+
+#include <linux/bitops.h>
+#include <linux/clkdev.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+#include "pll.h"
+
+#define OCSEL_OCSRC_ENABLE     0
+
+static const struct davinci_pll_clk_info dm365_pll1_info = {
+       .name = "pll1",
+       .pllm_mask = GENMASK(9, 0),
+       .pllm_min = 1,
+       .pllm_max = 1023,
+       .flags = PLL_HAS_CLKMODE | PLL_HAS_PREDIV | PLL_HAS_POSTDIV |
+                PLL_POSTDIV_ALWAYS_ENABLED | PLL_PLLM_2X,
+};
+
+SYSCLK(1, pll1_sysclk1, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(2, pll1_sysclk2, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(3, pll1_sysclk3, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(4, pll1_sysclk4, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(5, pll1_sysclk5, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(6, pll1_sysclk6, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(7, pll1_sysclk7, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(8, pll1_sysclk8, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(9, pll1_sysclk9, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+
+/*
+ * This is a bit of a hack to make OCSEL[OCSRC] on DM365 look like OCSEL[OCSRC]
+ * on DA850. On DM365, OCSEL[OCSRC] is just an enable/disable bit instead of a
+ * multiplexer. By modeling it as a single parent mux clock, the clock code will
+ * still do the right thing in this case.
+ */
+static const char * const dm365_pll_obsclk_parent_names[] = {
+       "oscin",
+};
+
+static u32 dm365_pll_obsclk_table[] = {
+       OCSEL_OCSRC_ENABLE,
+};
+
+static const struct davinci_pll_obsclk_info dm365_pll1_obsclk_info = {
+       .name = "pll1_obsclk",
+       .parent_names = dm365_pll_obsclk_parent_names,
+       .num_parents = ARRAY_SIZE(dm365_pll_obsclk_parent_names),
+       .table = dm365_pll_obsclk_table,
+       .ocsrc_mask = BIT(4),
+};
+
+int dm365_pll1_init(struct device *dev, void __iomem *base)
+{
+       struct clk *clk;
+
+       davinci_pll_clk_register(dev, &dm365_pll1_info, "ref_clk", base);
+
+       clk = davinci_pll_sysclk_register(dev, &pll1_sysclk1, base);
+       clk_register_clkdev(clk, "pll1_sysclk1", "dm365-psc");
+
+       clk = davinci_pll_sysclk_register(dev, &pll1_sysclk2, base);
+       clk_register_clkdev(clk, "pll1_sysclk2", "dm365-psc");
+
+       clk = davinci_pll_sysclk_register(dev, &pll1_sysclk3, base);
+       clk_register_clkdev(clk, "pll1_sysclk3", "dm365-psc");
+
+       clk = davinci_pll_sysclk_register(dev, &pll1_sysclk4, base);
+       clk_register_clkdev(clk, "pll1_sysclk4", "dm365-psc");
+
+       clk = davinci_pll_sysclk_register(dev, &pll1_sysclk5, base);
+       clk_register_clkdev(clk, "pll1_sysclk5", "dm365-psc");
+
+       davinci_pll_sysclk_register(dev, &pll1_sysclk6, base);
+
+       davinci_pll_sysclk_register(dev, &pll1_sysclk7, base);
+
+       clk = davinci_pll_sysclk_register(dev, &pll1_sysclk8, base);
+       clk_register_clkdev(clk, "pll1_sysclk8", "dm365-psc");
+
+       davinci_pll_sysclk_register(dev, &pll1_sysclk9, base);
+
+       clk = davinci_pll_auxclk_register(dev, "pll1_auxclk", base);
+       clk_register_clkdev(clk, "pll1_auxclk", "dm355-psc");
+
+       davinci_pll_sysclkbp_clk_register(dev, "pll1_sysclkbp", base);
+
+       davinci_pll_obsclk_register(dev, &dm365_pll1_obsclk_info, base);
+
+       return 0;
+}
+
+static const struct davinci_pll_clk_info dm365_pll2_info = {
+       .name = "pll2",
+       .pllm_mask = GENMASK(9, 0),
+       .pllm_min = 1,
+       .pllm_max = 1023,
+       .flags = PLL_HAS_PREDIV | PLL_HAS_POSTDIV | PLL_POSTDIV_ALWAYS_ENABLED |
+                PLL_PLLM_2X,
+};
+
+SYSCLK(1, pll2_sysclk1, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(2, pll2_sysclk2, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(3, pll2_sysclk3, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(4, pll2_sysclk4, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+SYSCLK(5, pll2_sysclk5, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED);
+
+static const struct davinci_pll_obsclk_info dm365_pll2_obsclk_info = {
+       .name = "pll2_obsclk",
+       .parent_names = dm365_pll_obsclk_parent_names,
+       .num_parents = ARRAY_SIZE(dm365_pll_obsclk_parent_names),
+       .table = dm365_pll_obsclk_table,
+       .ocsrc_mask = BIT(4),
+};
+
+int dm365_pll2_init(struct device *dev, void __iomem *base)
+{
+       struct clk *clk;
+
+       davinci_pll_clk_register(dev, &dm365_pll2_info, "oscin", base);
+
+       davinci_pll_sysclk_register(dev, &pll2_sysclk1, base);
+
+       clk = davinci_pll_sysclk_register(dev, &pll2_sysclk2, base);
+       clk_register_clkdev(clk, "pll1_sysclk2", "dm365-psc");
+
+       davinci_pll_sysclk_register(dev, &pll2_sysclk3, base);
+
+       clk = davinci_pll_sysclk_register(dev, &pll2_sysclk4, base);
+       clk_register_clkdev(clk, "pll1_sysclk4", "dm365-psc");
+
+       davinci_pll_sysclk_register(dev, &pll2_sysclk5, base);
+
+       davinci_pll_auxclk_register(dev, "pll2_auxclk", base);
+
+       davinci_pll_obsclk_register(dev, &dm365_pll2_obsclk_info, base);
+
+       return 0;
+}

diff --git a/drivers/clk/davinci/pll.c b/drivers/clk/davinci/pll.c
index 4a506a970c52e29a051b5dcce1be87b32c2a6b37..7e1f6721533a58641d1610cf2eedb39e989b6b28 100644 (file)
--- a/drivers/clk/davinci/pll.c
+++ b/drivers/clk/davinci/pll.c
@@ -782,6 +782,8 @@ static const struct platform_device_id davinci_pll_id_table[] = {
        { .name = "da850-pll1",  .driver_data = (kernel_ulong_t)da850_pll1_init  },
        { .name = "dm355-pll1",  .driver_data = (kernel_ulong_t)dm355_pll1_init  },
        { .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  },
        { }
 };
 

diff --git a/drivers/clk/davinci/pll.h b/drivers/clk/davinci/pll.h
index d90d3080fcdacd91d123d488b320b374fa7de1a6..bf9fdc896fbc58473510554505998cfffa4e39da 100644 (file)
--- a/drivers/clk/davinci/pll.h
+++ b/drivers/clk/davinci/pll.h
@@ -129,4 +129,7 @@ int of_da850_pll1_init(struct device *dev, void __iomem *base);
 int dm355_pll1_init(struct device *dev, void __iomem *base);
 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);
+
 #endif /* __CLK_DAVINCI_PLL_H___ */