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clk: davinci: Add platform information for TI DM365 PLL

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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>
This commit is contained in:
David Lechner 2018-03-15 21:52:22 -05:00 committed by Stephen Boyd
parent dcdd19b269
commit 650bba61fc
4 changed files with 151 additions and 0 deletions
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1
drivers/clk/davinci/Makefile
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@ -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

145
drivers/clk/davinci/pll-dm365.c Normal file
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@ -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;
}

2
drivers/clk/davinci/pll.c
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@ -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 },
{ }
};

3
drivers/clk/davinci/pll.h
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@ -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___ */