diff options
| author | Steven King <sfking@fdwdc.com> | 2012-06-17 09:34:00 +0200 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2012-07-16 01:59:22 +0200 |
| commit | fe66158aaf44255d05f232f1eace281898e3ee75 (patch) | |
| tree | 5cf8b4bc0b90a47f0ed4a983e66d8eef0538ae93 /arch/m68k/platform | |
| parent | m68knommu: Add rtc device for m5441x. (diff) | |
| download | linux-fe66158aaf44255d05f232f1eace281898e3ee75.tar.xz linux-fe66158aaf44255d05f232f1eace281898e3ee75.zip | |
m68knommu: Add clk definitions for m520x.
The 520x has individually controllable clocks for its peripherals. Add clk
definitions for these and add default initialization of either enabled or
disabled for all of the clocks.
Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k/platform')
| -rw-r--r-- | arch/m68k/platform/coldfire/m520x.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/m520x.c b/arch/m68k/platform/coldfire/m520x.c index 09df4b89e8be..ea1be0e98ad6 100644 --- a/arch/m68k/platform/coldfire/m520x.c +++ b/arch/m68k/platform/coldfire/m520x.c @@ -19,6 +19,102 @@ #include <asm/coldfire.h> #include <asm/mcfsim.h> #include <asm/mcfuart.h> +#include <asm/mcfclk.h> + +/***************************************************************************/ + +DEFINE_CLK(0, "flexbus", 2, MCF_CLK); +DEFINE_CLK(0, "fec.0", 12, MCF_CLK); +DEFINE_CLK(0, "edma", 17, MCF_CLK); +DEFINE_CLK(0, "intc.0", 18, MCF_CLK); +DEFINE_CLK(0, "iack.0", 21, MCF_CLK); +DEFINE_CLK(0, "mcfi2c.0", 22, MCF_CLK); +DEFINE_CLK(0, "mcfqspi.0", 23, MCF_CLK); +DEFINE_CLK(0, "mcfuart.0", 24, MCF_BUSCLK); +DEFINE_CLK(0, "mcfuart.1", 25, MCF_BUSCLK); +DEFINE_CLK(0, "mcfuart.2", 26, MCF_BUSCLK); +DEFINE_CLK(0, "mcftmr.0", 28, MCF_CLK); +DEFINE_CLK(0, "mcftmr.1", 29, MCF_CLK); +DEFINE_CLK(0, "mcftmr.2", 30, MCF_CLK); +DEFINE_CLK(0, "mcftmr.3", 31, MCF_CLK); + +DEFINE_CLK(0, "mcfpit.0", 32, MCF_CLK); +DEFINE_CLK(0, "mcfpit.1", 33, MCF_CLK); +DEFINE_CLK(0, "mcfeport.0", 34, MCF_CLK); +DEFINE_CLK(0, "mcfwdt.0", 35, MCF_CLK); +DEFINE_CLK(0, "pll.0", 36, MCF_CLK); +DEFINE_CLK(0, "sys.0", 40, MCF_BUSCLK); +DEFINE_CLK(0, "gpio.0", 41, MCF_BUSCLK); +DEFINE_CLK(0, "sdram.0", 42, MCF_CLK); + +struct clk *mcf_clks[] = { + &__clk_0_2, /* flexbus */ + &__clk_0_12, /* fec.0 */ + &__clk_0_17, /* edma */ + &__clk_0_18, /* intc.0 */ + &__clk_0_21, /* iack.0 */ + &__clk_0_22, /* mcfi2c.0 */ + &__clk_0_23, /* mcfqspi.0 */ + &__clk_0_24, /* mcfuart.0 */ + &__clk_0_25, /* mcfuart.1 */ + &__clk_0_26, /* mcfuart.2 */ + &__clk_0_28, /* mcftmr.0 */ + &__clk_0_29, /* mcftmr.1 */ + &__clk_0_30, /* mcftmr.2 */ + &__clk_0_31, /* mcftmr.3 */ + + &__clk_0_32, /* mcfpit.0 */ + &__clk_0_33, /* mcfpit.1 */ + &__clk_0_34, /* mcfeport.0 */ + &__clk_0_35, /* mcfwdt.0 */ + &__clk_0_36, /* pll.0 */ + &__clk_0_40, /* sys.0 */ + &__clk_0_41, /* gpio.0 */ + &__clk_0_42, /* sdram.0 */ +NULL, +}; + +static struct clk * const enable_clks[] __initconst = { + &__clk_0_2, /* flexbus */ + &__clk_0_18, /* intc.0 */ + &__clk_0_21, /* iack.0 */ + &__clk_0_24, /* mcfuart.0 */ + &__clk_0_25, /* mcfuart.1 */ + &__clk_0_26, /* mcfuart.2 */ + + &__clk_0_32, /* mcfpit.0 */ + &__clk_0_33, /* mcfpit.1 */ + &__clk_0_34, /* mcfeport.0 */ + &__clk_0_36, /* pll.0 */ + &__clk_0_40, /* sys.0 */ + &__clk_0_41, /* gpio.0 */ + &__clk_0_42, /* sdram.0 */ +}; + +static struct clk * const disable_clks[] __initconst = { + &__clk_0_12, /* fec.0 */ + &__clk_0_17, /* edma */ + &__clk_0_22, /* mcfi2c.0 */ + &__clk_0_23, /* mcfqspi.0 */ + &__clk_0_28, /* mcftmr.0 */ + &__clk_0_29, /* mcftmr.1 */ + &__clk_0_30, /* mcftmr.2 */ + &__clk_0_31, /* mcftmr.3 */ + &__clk_0_35, /* mcfwdt.0 */ +}; + + +static void __init m520x_clk_init(void) +{ + unsigned i; + + /* make sure these clocks are enabled */ + for (i = 0; i < ARRAY_SIZE(enable_clks); ++i) + __clk_init_enabled(enable_clks[i]); + /* make sure these clocks are disabled */ + for (i = 0; i < ARRAY_SIZE(disable_clks); ++i) + __clk_init_disabled(disable_clks[i]); +} /***************************************************************************/ @@ -77,6 +173,7 @@ static void __init m520x_fec_init(void) void __init config_BSP(char *commandp, int size) { mach_sched_init = hw_timer_init; + m520x_clk_init(); m520x_uarts_init(); m520x_fec_init(); #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) |