ARM: tegra: migrate to new clock code
Migrate Tegra clock support to drivers/clk/tegra, this involves
moving:
1. definition of tegra_cpu_car_ops to clk.c
2. definition of reset functions to clk-peripheral.c
3. change parent of cpu clock.
4. Remove legacy clock initialization.
5. Initialize clocks using DT.
6. Remove all instance of mach/clk.h
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
[swarren: use to_clk_periph_gate().]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c
index e1f87dd..0c11b8a 100644
--- a/arch/arm/mach-tegra/board-dt-tegra20.c
+++ b/arch/arm/mach-tegra/board-dt-tegra20.c
@@ -42,7 +42,6 @@
#include <asm/setup.h>
#include "board.h"
-#include "clock.h"
#include "common.h"
#include "iomap.h"
@@ -104,37 +103,8 @@
{}
};
-static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
- /* name parent rate enabled */
- { "uarta", "pll_p", 216000000, true },
- { "uartd", "pll_p", 216000000, true },
- { "usbd", "clk_m", 12000000, false },
- { "usb2", "clk_m", 12000000, false },
- { "usb3", "clk_m", 12000000, false },
- { "pll_a", "pll_p_out1", 56448000, true },
- { "pll_a_out0", "pll_a", 11289600, true },
- { "cdev1", NULL, 0, true },
- { "blink", "clk_32k", 32768, true },
- { "i2s1", "pll_a_out0", 11289600, false},
- { "i2s2", "pll_a_out0", 11289600, false},
- { "sdmmc1", "pll_p", 48000000, false},
- { "sdmmc3", "pll_p", 48000000, false},
- { "sdmmc4", "pll_p", 48000000, false},
- { "spi", "pll_p", 20000000, false },
- { "sbc1", "pll_p", 100000000, false },
- { "sbc2", "pll_p", 100000000, false },
- { "sbc3", "pll_p", 100000000, false },
- { "sbc4", "pll_p", 100000000, false },
- { "host1x", "pll_c", 150000000, false },
- { "disp1", "pll_p", 600000000, false },
- { "disp2", "pll_p", 600000000, false },
- { NULL, NULL, 0, 0},
-};
-
static void __init tegra_dt_init(void)
{
- tegra_clk_init_from_table(tegra_dt_clk_init_table);
-
/*
* Finished with the static registrations now; fill in the missing
* devices
diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c
index cfe5fc0..92f6014 100644
--- a/arch/arm/mach-tegra/board-dt-tegra30.c
+++ b/arch/arm/mach-tegra/board-dt-tegra30.c
@@ -35,7 +35,6 @@
#include <asm/hardware/gic.h>
#include "board.h"
-#include "clock.h"
#include "common.h"
#include "iomap.h"
@@ -67,38 +66,8 @@
{}
};
-static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
- /* name parent rate enabled */
- { "uarta", "pll_p", 408000000, true },
- { "pll_a", "pll_p_out1", 564480000, true },
- { "pll_a_out0", "pll_a", 11289600, true },
- { "extern1", "pll_a_out0", 0, true },
- { "clk_out_1", "extern1", 0, true },
- { "blink", "clk_32k", 32768, true },
- { "i2s0", "pll_a_out0", 11289600, false},
- { "i2s1", "pll_a_out0", 11289600, false},
- { "i2s2", "pll_a_out0", 11289600, false},
- { "i2s3", "pll_a_out0", 11289600, false},
- { "i2s4", "pll_a_out0", 11289600, false},
- { "sdmmc1", "pll_p", 48000000, false},
- { "sdmmc3", "pll_p", 48000000, false},
- { "sdmmc4", "pll_p", 48000000, false},
- { "sbc1", "pll_p", 100000000, false},
- { "sbc2", "pll_p", 100000000, false},
- { "sbc3", "pll_p", 100000000, false},
- { "sbc4", "pll_p", 100000000, false},
- { "sbc5", "pll_p", 100000000, false},
- { "sbc6", "pll_p", 100000000, false},
- { "host1x", "pll_c", 150000000, false},
- { "disp1", "pll_p", 600000000, false},
- { "disp2", "pll_p", 600000000, false},
- { NULL, NULL, 0, 0},
-};
-
static void __init tegra30_dt_init(void)
{
- tegra_clk_init_from_table(tegra_dt_clk_init_table);
-
of_platform_populate(NULL, of_default_bus_match_table,
tegra30_auxdata_lookup, NULL);
}
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index 8c0ff06..baa0c5b 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -31,9 +31,6 @@
#include "board.h"
#include "clock.h"
-/* Global data of Tegra CPU CAR ops */
-struct tegra_cpu_car_ops *tegra_cpu_car_ops;
-
/*
* Locking:
*
@@ -131,22 +128,6 @@
tegra_clk_init_one_from_table(table);
}
-void tegra_periph_reset_deassert(struct clk *c)
-{
- struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c));
- BUG_ON(!clk->reset);
- clk->reset(__clk_get_hw(c), false);
-}
-EXPORT_SYMBOL(tegra_periph_reset_deassert);
-
-void tegra_periph_reset_assert(struct clk *c)
-{
- struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c));
- BUG_ON(!clk->reset);
- clk->reset(__clk_get_hw(c), true);
-}
-EXPORT_SYMBOL(tegra_periph_reset_assert);
-
/* Several extended clock configuration bits (e.g., clock routing, clock
* phase control) are included in PLL and peripheral clock source
* registers. */
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 3efe80b..87dd69c 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -22,6 +22,7 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/of_irq.h>
+#include <linux/clk/tegra.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/hardware/gic.h>
@@ -29,7 +30,6 @@
#include <mach/powergate.h>
#include "board.h"
-#include "clock.h"
#include "common.h"
#include "fuse.h"
#include "iomap.h"
@@ -65,6 +65,7 @@
void __init tegra_dt_init_irq(void)
{
+ tegra_clocks_init();
tegra_init_irq();
of_irq_init(tegra_dt_irq_match);
}
@@ -80,43 +81,6 @@
writel_relaxed(reg, reset);
}
-#ifdef CONFIG_ARCH_TEGRA_2x_SOC
-static __initdata struct tegra_clk_init_table tegra20_clk_init_table[] = {
- /* name parent rate enabled */
- { "clk_m", NULL, 0, true },
- { "pll_p", "clk_m", 216000000, true },
- { "pll_p_out1", "pll_p", 28800000, true },
- { "pll_p_out2", "pll_p", 48000000, true },
- { "pll_p_out3", "pll_p", 72000000, true },
- { "pll_p_out4", "pll_p", 24000000, true },
- { "pll_c", "clk_m", 600000000, true },
- { "pll_c_out1", "pll_c", 120000000, true },
- { "sclk", "pll_c_out1", 120000000, true },
- { "hclk", "sclk", 120000000, true },
- { "pclk", "hclk", 60000000, true },
- { "csite", NULL, 0, true },
- { "emc", NULL, 0, true },
- { "cpu", NULL, 0, true },
- { NULL, NULL, 0, 0},
-};
-#endif
-
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
-static __initdata struct tegra_clk_init_table tegra30_clk_init_table[] = {
- /* name parent rate enabled */
- { "clk_m", NULL, 0, true },
- { "pll_p", "pll_ref", 408000000, true },
- { "pll_p_out1", "pll_p", 9600000, true },
- { "pll_p_out4", "pll_p", 102000000, true },
- { "sclk", "pll_p_out4", 102000000, true },
- { "hclk", "sclk", 102000000, true },
- { "pclk", "hclk", 51000000, true },
- { "csite", NULL, 0, true },
- { NULL, NULL, 0, 0},
-};
-#endif
-
-
static void __init tegra_init_cache(void)
{
#ifdef CONFIG_CACHE_L2X0
@@ -141,8 +105,6 @@
tegra_cpu_reset_handler_init();
tegra_apb_io_init();
tegra_init_fuse();
- tegra2_init_clocks();
- tegra_clk_init_from_table(tegra20_clk_init_table);
tegra_init_cache();
tegra_pmc_init();
tegra_powergate_init();
@@ -155,8 +117,6 @@
tegra_cpu_reset_handler_init();
tegra_apb_io_init();
tegra_init_fuse();
- tegra30_init_clocks();
- tegra_clk_init_from_table(tegra30_clk_init_table);
tegra_init_cache();
tegra_pmc_init();
tegra_powergate_init();
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
index 85d4a23..ebffed6 100644
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -266,7 +266,7 @@
if (IS_ERR(pll_x_clk))
return PTR_ERR(pll_x_clk);
- pll_p_clk = clk_get_sys(NULL, "pll_p");
+ pll_p_clk = clk_get_sys(NULL, "pll_p_cclk");
if (IS_ERR(pll_p_clk))
return PTR_ERR(pll_p_clk);
diff --git a/arch/arm/mach-tegra/include/mach/clk.h b/arch/arm/mach-tegra/include/mach/clk.h
index 95f3a54..85bbf10 100644
--- a/arch/arm/mach-tegra/include/mach/clk.h
+++ b/arch/arm/mach-tegra/include/mach/clk.h
@@ -31,9 +31,6 @@
TEGRA_CLK_PLLD_MIPI_MUX_SEL,
};
-void tegra_periph_reset_deassert(struct clk *c);
-void tegra_periph_reset_assert(struct clk *c);
-
#ifndef CONFIG_COMMON_CLK
unsigned long clk_get_rate_all_locked(struct clk *c);
#endif
diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c
index bffcd64..b60165f 100644
--- a/arch/arm/mach-tegra/pcie.c
+++ b/arch/arm/mach-tegra/pcie.c
@@ -33,11 +33,11 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/export.h>
+#include <linux/clk/tegra.h>
#include <asm/sizes.h>
#include <asm/mach/pci.h>
-#include <mach/clk.h>
#include <mach/powergate.h>
#include "board.h"
diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index 2cc1185..c6bc8f8 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -26,8 +26,8 @@
#include <linux/io.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
+#include <linux/clk/tegra.h>
-#include <mach/clk.h>
#include <mach/powergate.h>
#include "fuse.h"