diff options
Diffstat (limited to 'arch/mips')
-rw-r--r-- | arch/mips/Kconfig | 6 | ||||
-rw-r--r-- | arch/mips/ar7/clock.c | 113 | ||||
-rw-r--r-- | arch/mips/include/asm/mach-ar7/ar7.h | 4 | ||||
-rw-r--r-- | arch/mips/pic32/Kconfig | 1 | ||||
-rw-r--r-- | arch/mips/ralink/Kconfig | 5 | ||||
-rw-r--r-- | arch/mips/ralink/clk.c | 64 |
6 files changed, 34 insertions, 159 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index ed51970c08e7..96ab1a2a9357 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -201,6 +201,7 @@ config MIPS_ALCHEMY config AR7 bool "Texas Instruments AR7" select BOOT_ELF32 + select COMMON_CLK select DMA_NONCOHERENT select CEVT_R4K select CSRC_R4K @@ -215,7 +216,6 @@ config AR7 select SYS_SUPPORTS_ZBOOT_UART16550 select GPIOLIB select VLYNQ - select HAVE_LEGACY_CLK help Support for the Texas Instruments AR7 System-on-a-Chip family: TNETD7100, 7200 and 7300. @@ -332,7 +332,6 @@ config BCM63XX select SWAP_IO_SPACE select GPIOLIB select MIPS_L1_CACHE_SHIFT_4 - select CLKDEV_LOOKUP select HAVE_LEGACY_CLK help Support for BCM63XX based boards @@ -446,7 +445,6 @@ config LANTIQ select GPIOLIB select SWAP_IO_SPACE select BOOT_RAW - select CLKDEV_LOOKUP select HAVE_LEGACY_CLK select USE_OF select PINCTRL @@ -630,6 +628,7 @@ config MACH_NINTENDO64 config RALINK bool "Ralink based machines" select CEVT_R4K + select COMMON_CLK select CSRC_R4K select BOOT_RAW select DMA_NONCOHERENT @@ -642,7 +641,6 @@ config RALINK select SYS_SUPPORTS_MIPS16 select SYS_SUPPORTS_ZBOOT select SYS_HAS_EARLY_PRINTK - select CLKDEV_LOOKUP select ARCH_HAS_RESET_CONTROLLER select RESET_CONTROLLER diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c index 95def949c971..c717acbc5506 100644 --- a/arch/mips/ar7/clock.c +++ b/arch/mips/ar7/clock.c @@ -13,7 +13,9 @@ #include <linux/gcd.h> #include <linux/io.h> #include <linux/err.h> +#include <linux/clkdev.h> #include <linux/clk.h> +#include <linux/clk-provider.h> #include <asm/addrspace.h> #include <asm/mach-ar7/ar7.h> @@ -84,17 +86,17 @@ struct tnetd7200_clocks { struct tnetd7200_clock usb; }; -static struct clk bus_clk = { +struct clk_rate { + u32 rate; +}; +static struct clk_rate bus_clk = { .rate = 125000000, }; -static struct clk cpu_clk = { +static struct clk_rate cpu_clk = { .rate = 150000000, }; -static struct clk dsp_clk; -static struct clk vbus_clk; - static void approximate(int base, int target, int *prediv, int *postdiv, int *mul) { @@ -240,6 +242,8 @@ static void __init tnetd7300_init_clocks(void) struct tnetd7300_clocks *clocks = ioremap(UR8_REGS_CLOCKS, sizeof(struct tnetd7300_clocks)); + u32 dsp_clk; + struct clk *clk; bus_clk.rate = tnetd7300_get_clock(BUS_PLL_SOURCE_SHIFT, &clocks->bus, bootcr, AR7_AFE_CLOCK); @@ -250,12 +254,18 @@ static void __init tnetd7300_init_clocks(void) else cpu_clk.rate = bus_clk.rate; - if (dsp_clk.rate == 250000000) + dsp_clk = tnetd7300_dsp_clock(); + if (dsp_clk == 250000000) tnetd7300_set_clock(DSP_PLL_SOURCE_SHIFT, &clocks->dsp, - bootcr, dsp_clk.rate); + bootcr, dsp_clk); iounmap(clocks); iounmap(bootcr); + + clk = clk_register_fixed_rate(NULL, "cpu", NULL, 0, cpu_clk.rate); + clkdev_create(clk, "cpu", NULL); + clk = clk_register_fixed_rate(NULL, "dsp", NULL, 0, dsp_clk); + clkdev_create(clk, "dsp", NULL); } static void tnetd7200_set_clock(int base, struct tnetd7200_clock *clock, @@ -327,6 +337,7 @@ static void __init tnetd7200_init_clocks(void) int cpu_base, cpu_mul, cpu_prediv, cpu_postdiv; int dsp_base, dsp_mul, dsp_prediv, dsp_postdiv; int usb_base, usb_mul, usb_prediv, usb_postdiv; + struct clk *clk; cpu_base = tnetd7200_get_clock_base(TNETD7200_CLOCK_ID_CPU, bootcr); dsp_base = tnetd7200_get_clock_base(TNETD7200_CLOCK_ID_DSP, bootcr); @@ -395,100 +406,34 @@ static void __init tnetd7200_init_clocks(void) usb_prediv, usb_postdiv, -1, usb_mul, TNETD7200_DEF_USB_CLK); - dsp_clk.rate = cpu_clk.rate; - iounmap(clocks); iounmap(bootcr); -} - -/* - * Linux clock API - */ -int clk_enable(struct clk *clk) -{ - return 0; -} -EXPORT_SYMBOL(clk_enable); - -void clk_disable(struct clk *clk) -{ -} -EXPORT_SYMBOL(clk_disable); - -unsigned long clk_get_rate(struct clk *clk) -{ - if (!clk) - return 0; - return clk->rate; -} -EXPORT_SYMBOL(clk_get_rate); - -struct clk *clk_get(struct device *dev, const char *id) -{ - if (!strcmp(id, "bus")) - return &bus_clk; - /* cpmac and vbus share the same rate */ - if (!strcmp(id, "cpmac")) - return &vbus_clk; - if (!strcmp(id, "cpu")) - return &cpu_clk; - if (!strcmp(id, "dsp")) - return &dsp_clk; - if (!strcmp(id, "vbus")) - return &vbus_clk; - return ERR_PTR(-ENOENT); + clk = clk_register_fixed_rate(NULL, "cpu", NULL, 0, cpu_clk.rate); + clkdev_create(clk, "cpu", NULL); + clkdev_create(clk, "dsp", NULL); } -EXPORT_SYMBOL(clk_get); - -void clk_put(struct clk *clk) -{ -} -EXPORT_SYMBOL(clk_put); void __init ar7_init_clocks(void) { + struct clk *clk; + switch (ar7_chip_id()) { case AR7_CHIP_7100: case AR7_CHIP_7200: tnetd7200_init_clocks(); break; case AR7_CHIP_7300: - dsp_clk.rate = tnetd7300_dsp_clock(); tnetd7300_init_clocks(); break; default: break; } + clk = clk_register_fixed_rate(NULL, "bus", NULL, 0, bus_clk.rate); + clkdev_create(clk, "bus", NULL); /* adjust vbus clock rate */ - vbus_clk.rate = bus_clk.rate / 2; -} - -/* dummy functions, should not be called */ -long clk_round_rate(struct clk *clk, unsigned long rate) -{ - WARN_ON(clk); - return 0; -} -EXPORT_SYMBOL(clk_round_rate); - -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - WARN_ON(clk); - return 0; -} -EXPORT_SYMBOL(clk_set_rate); - -int clk_set_parent(struct clk *clk, struct clk *parent) -{ - WARN_ON(clk); - return 0; -} -EXPORT_SYMBOL(clk_set_parent); - -struct clk *clk_get_parent(struct clk *clk) -{ - WARN_ON(clk); - return NULL; + clk = clk_register_fixed_factor(NULL, "vbus", "bus", 0, 1, 2); + clkdev_create(clk, "vbus", NULL); + clkdev_create(clk, "cpmac", "cpmac.1"); + clkdev_create(clk, "cpmac", "cpmac.1"); } -EXPORT_SYMBOL(clk_get_parent); diff --git a/arch/mips/include/asm/mach-ar7/ar7.h b/arch/mips/include/asm/mach-ar7/ar7.h index dd09c3bf0601..cbe75ade3277 100644 --- a/arch/mips/include/asm/mach-ar7/ar7.h +++ b/arch/mips/include/asm/mach-ar7/ar7.h @@ -131,10 +131,6 @@ static inline u8 ar7_chip_rev(void) 0x14))) >> 16) & 0xff; } -struct clk { - unsigned int rate; -}; - static inline int ar7_has_high_cpmac(void) { u16 chip_id = ar7_chip_id(); diff --git a/arch/mips/pic32/Kconfig b/arch/mips/pic32/Kconfig index 7acbb50c1dcd..bb6ab1f3e80d 100644 --- a/arch/mips/pic32/Kconfig +++ b/arch/mips/pic32/Kconfig @@ -17,7 +17,6 @@ config PIC32MZDA select SYS_SUPPORTS_LITTLE_ENDIAN select GPIOLIB select COMMON_CLK - select CLKDEV_LOOKUP select LIBFDT select USE_OF select PINCTRL diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig index ec4daa63c5e3..c800bf5559b5 100644 --- a/arch/mips/ralink/Kconfig +++ b/arch/mips/ralink/Kconfig @@ -28,22 +28,18 @@ choice bool "RT288x" select MIPS_AUTO_PFN_OFFSET select MIPS_L1_CACHE_SHIFT_4 - select HAVE_LEGACY_CLK select HAVE_PCI config SOC_RT305X bool "RT305x" - select HAVE_LEGACY_CLK config SOC_RT3883 bool "RT3883" - select HAVE_LEGACY_CLK select HAVE_PCI config SOC_MT7620 bool "MT7620/8" select CPU_MIPSR2_IRQ_VI - select HAVE_LEGACY_CLK select HAVE_PCI config SOC_MT7621 @@ -54,7 +50,6 @@ choice select SYS_SUPPORTS_MIPS_CPS select SYS_SUPPORTS_HIGHMEM select MIPS_GIC - select COMMON_CLK select CLKSRC_MIPS_GIC select HAVE_PCI if PCI_MT7621 select SOC_BUS diff --git a/arch/mips/ralink/clk.c b/arch/mips/ralink/clk.c index f0bcb1051c30..5b02bb7e0829 100644 --- a/arch/mips/ralink/clk.c +++ b/arch/mips/ralink/clk.c @@ -10,79 +10,21 @@ #include <linux/export.h> #include <linux/clkdev.h> #include <linux/clk.h> +#include <linux/clk-provider.h> #include <asm/time.h> #include "common.h" -struct clk { - struct clk_lookup cl; - unsigned long rate; -}; - void ralink_clk_add(const char *dev, unsigned long rate) { - struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL); + struct clk *clk = clk_register_fixed_rate(NULL, dev, NULL, 0, rate); if (!clk) panic("failed to add clock"); - clk->cl.dev_id = dev; - clk->cl.clk = clk; - - clk->rate = rate; - - clkdev_add(&clk->cl); -} - -/* - * Linux clock API - */ -int clk_enable(struct clk *clk) -{ - return 0; -} -EXPORT_SYMBOL_GPL(clk_enable); - -void clk_disable(struct clk *clk) -{ -} -EXPORT_SYMBOL_GPL(clk_disable); - -unsigned long clk_get_rate(struct clk *clk) -{ - if (!clk) - return 0; - - return clk->rate; -} -EXPORT_SYMBOL_GPL(clk_get_rate); - -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - return -1; -} -EXPORT_SYMBOL_GPL(clk_set_rate); - -long clk_round_rate(struct clk *clk, unsigned long rate) -{ - return -1; -} -EXPORT_SYMBOL_GPL(clk_round_rate); - -int clk_set_parent(struct clk *clk, struct clk *parent) -{ - WARN_ON(clk); - return -1; -} -EXPORT_SYMBOL_GPL(clk_set_parent); - -struct clk *clk_get_parent(struct clk *clk) -{ - WARN_ON(clk); - return NULL; + clkdev_create(clk, NULL, "%s", dev); } -EXPORT_SYMBOL_GPL(clk_get_parent); void __init plat_time_init(void) { |