diff options
| -rw-r--r-- | arch/sh/Kconfig | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/Makefile | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/clock-sh7366.c | 211 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/clock-sh7722.c | 42 |
4 files changed, 214 insertions, 43 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 3980714..dbc10ff 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -516,7 +516,7 @@ config SH_CLK_CPG config SH_CLK_CPG_LEGACY depends on SH_CLK_CPG - def_bool y if !CPU_SUBTYPE_SH7785 && !CPU_SUBTYPE_SH7723 && !CPU_SUBTYPE_SH7724 && !CPU_SUBTYPE_SH7343 + def_bool y if !CPU_SUBTYPE_SH7785 && !CPU_SUBTYPE_SH7723 && !CPU_SUBTYPE_SH7724 && !CPU_SUBTYPE_SH7343 && !CPU_SUBTYPE_SH7366 config SH_CLK_MD int "CPU Mode Pin Setting" diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile index f4415f9..96ea09c 100644 --- a/arch/sh/kernel/cpu/sh4a/Makefile +++ b/arch/sh/kernel/cpu/sh4a/Makefile @@ -28,7 +28,7 @@ clock-$(CONFIG_CPU_SUBTYPE_SH7343) := clock-sh7343.o clock-$(CONFIG_CPU_SUBTYPE_SH7722) := clock-sh7722.o clock-$(CONFIG_CPU_SUBTYPE_SH7723) := clock-sh7723.o clock-$(CONFIG_CPU_SUBTYPE_SH7724) := clock-sh7724.o -clock-$(CONFIG_CPU_SUBTYPE_SH7366) := clock-sh7722.o +clock-$(CONFIG_CPU_SUBTYPE_SH7366) := clock-sh7366.o clock-$(CONFIG_CPU_SUBTYPE_SHX3) := clock-shx3.o # Pinmux setup diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7366.c b/arch/sh/kernel/cpu/sh4a/clock-sh7366.c new file mode 100644 index 0000000..a95ebab --- /dev/null +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7366.c @@ -0,0 +1,211 @@ +/* + * arch/sh/kernel/cpu/sh4a/clock-sh7366.c + * + * SH7366 clock framework support + * + * Copyright (C) 2009 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <asm/clock.h> + +/* SH7366 registers */ +#define FRQCR 0xa4150000 +#define VCLKCR 0xa4150004 +#define SCLKACR 0xa4150008 +#define SCLKBCR 0xa415000c +#define PLLCR 0xa4150024 +#define MSTPCR0 0xa4150030 +#define MSTPCR1 0xa4150034 +#define MSTPCR2 0xa4150038 +#define DLLFRQ 0xa4150050 + +/* Fixed 32 KHz root clock for RTC and Power Management purposes */ +static struct clk r_clk = { + .name = "rclk", + .id = -1, + .rate = 32768, +}; + +/* + * Default rate for the root input clock, reset this with clk_set_rate() + * from the platform code. + */ +struct clk extal_clk = { + .name = "extal", + .id = -1, + .rate = 33333333, +}; + +/* The dll block multiplies the 32khz r_clk, may be used instead of extal */ +static unsigned long dll_recalc(struct clk *clk) +{ + unsigned long mult; + + if (__raw_readl(PLLCR) & 0x1000) + mult = __raw_readl(DLLFRQ); + else + mult = 0; + + return clk->parent->rate * mult; +} + +static struct clk_ops dll_clk_ops = { + .recalc = dll_recalc, +}; + +static struct clk dll_clk = { + .name = "dll_clk", + .id = -1, + .ops = &dll_clk_ops, + .parent = &r_clk, + .flags = CLK_ENABLE_ON_INIT, +}; + +static unsigned long pll_recalc(struct clk *clk) +{ + unsigned long mult = 1; + unsigned long div = 1; + + if (__raw_readl(PLLCR) & 0x4000) + mult = (((__raw_readl(FRQCR) >> 24) & 0x1f) + 1); + else + div = 2; + + return (clk->parent->rate * mult) / div; +} + +static struct clk_ops pll_clk_ops = { + .recalc = pll_recalc, +}; + +static struct clk pll_clk = { + .name = "pll_clk", + .id = -1, + .ops = &pll_clk_ops, + .flags = CLK_ENABLE_ON_INIT, +}; + +struct clk *main_clks[] = { + &r_clk, + &extal_clk, + &dll_clk, + &pll_clk, +}; + +static int multipliers[] = { 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1 }; +static int divisors[] = { 1, 3, 2, 5, 3, 4, 5, 6, 8, 10, 12, 16, 20 }; + +static struct clk_div_mult_table div4_table = { + .divisors = divisors, + .nr_divisors = ARRAY_SIZE(divisors), + .multipliers = multipliers, + .nr_multipliers = ARRAY_SIZE(multipliers), +}; + +enum { DIV4_I, DIV4_U, DIV4_SH, DIV4_B, DIV4_B3, DIV4_P, + DIV4_SIUA, DIV4_SIUB, DIV4_NR }; + +#define DIV4(_str, _reg, _bit, _mask, _flags) \ + SH_CLK_DIV4(_str, &pll_clk, _reg, _bit, _mask, _flags) + +struct clk div4_clks[DIV4_NR] = { + [DIV4_I] = DIV4("cpu_clk", FRQCR, 20, 0x1fef, CLK_ENABLE_ON_INIT), + [DIV4_U] = DIV4("umem_clk", FRQCR, 16, 0x1fff, CLK_ENABLE_ON_INIT), + [DIV4_SH] = DIV4("shyway_clk", FRQCR, 12, 0x1fff, CLK_ENABLE_ON_INIT), + [DIV4_B] = DIV4("bus_clk", FRQCR, 8, 0x1fff, CLK_ENABLE_ON_INIT), + [DIV4_B3] = DIV4("b3_clk", FRQCR, 4, 0x1fff, CLK_ENABLE_ON_INIT), + [DIV4_P] = DIV4("peripheral_clk", FRQCR, 0, 0x1fff, 0), + [DIV4_SIUA] = DIV4("siua_clk", SCLKACR, 0, 0x1fff, 0), + [DIV4_SIUB] = DIV4("siub_clk", SCLKBCR, 0, 0x1fff, 0), +}; + +struct clk div6_clks[] = { + SH_CLK_DIV6("video_clk", &pll_clk, VCLKCR, 0), +}; + +#define MSTP(_str, _parent, _reg, _bit, _flags) \ + SH_CLK_MSTP32(_str, -1, _parent, _reg, _bit, _flags) + +static struct clk mstp_clks[] = { + /* See page 52 of Datasheet V0.40: Overview -> Block Diagram */ + MSTP("tlb0", &div4_clks[DIV4_I], MSTPCR0, 31, CLK_ENABLE_ON_INIT), + MSTP("ic0", &div4_clks[DIV4_I], MSTPCR0, 30, CLK_ENABLE_ON_INIT), + MSTP("oc0", &div4_clks[DIV4_I], MSTPCR0, 29, CLK_ENABLE_ON_INIT), + MSTP("rsmem0", &div4_clks[DIV4_SH], MSTPCR0, 28, CLK_ENABLE_ON_INIT), + MSTP("xymem0", &div4_clks[DIV4_B], MSTPCR0, 26, CLK_ENABLE_ON_INIT), + MSTP("intc3", &div4_clks[DIV4_P], MSTPCR0, 23, 0), + MSTP("intc0", &div4_clks[DIV4_P], MSTPCR0, 22, 0), + MSTP("dmac0", &div4_clks[DIV4_P], MSTPCR0, 21, 0), + MSTP("sh0", &div4_clks[DIV4_P], MSTPCR0, 20, 0), + MSTP("hudi0", &div4_clks[DIV4_P], MSTPCR0, 19, 0), + MSTP("ubc0", &div4_clks[DIV4_P], MSTPCR0, 17, 0), + MSTP("tmu0", &div4_clks[DIV4_P], MSTPCR0, 15, 0), + MSTP("cmt0", &r_clk, MSTPCR0, 14, 0), + MSTP("rwdt0", &r_clk, MSTPCR0, 13, 0), + MSTP("mfi0", &div4_clks[DIV4_P], MSTPCR0, 11, 0), + MSTP("flctl0", &div4_clks[DIV4_P], MSTPCR0, 10, 0), + MSTP("scif0", &div4_clks[DIV4_P], MSTPCR0, 7, 0), + MSTP("scif1", &div4_clks[DIV4_P], MSTPCR0, 6, 0), + MSTP("scif2", &div4_clks[DIV4_P], MSTPCR0, 5, 0), + MSTP("msiof0", &div4_clks[DIV4_P], MSTPCR0, 2, 0), + MSTP("sbr0", &div4_clks[DIV4_P], MSTPCR0, 1, 0), + + MSTP("i2c0", &div4_clks[DIV4_P], MSTPCR1, 9, 0), + + MSTP("icb0", &div4_clks[DIV4_P], MSTPCR2, 27, 0), + MSTP("meram0", &div4_clks[DIV4_P], MSTPCR2, 26, 0), + MSTP("dacy1", &div4_clks[DIV4_P], MSTPCR2, 24, 0), + MSTP("dacy0", &div4_clks[DIV4_P], MSTPCR2, 23, 0), + MSTP("tsif0", &div4_clks[DIV4_P], MSTPCR2, 22, 0), + MSTP("sdhi0", &div4_clks[DIV4_P], MSTPCR2, 18, 0), + MSTP("mmcif0", &div4_clks[DIV4_P], MSTPCR2, 17, 0), + MSTP("usbf0", &div4_clks[DIV4_P], MSTPCR2, 11, 0), + MSTP("siu0", &div4_clks[DIV4_B], MSTPCR2, 9, 0), + MSTP("veu1", &div4_clks[DIV4_B], MSTPCR2, 7, CLK_ENABLE_ON_INIT), + MSTP("vou0", &div4_clks[DIV4_B], MSTPCR2, 5, 0), + MSTP("beu0", &div4_clks[DIV4_B], MSTPCR2, 4, 0), + MSTP("ceu0", &div4_clks[DIV4_B], MSTPCR2, 3, 0), + MSTP("veu0", &div4_clks[DIV4_B], MSTPCR2, 2, CLK_ENABLE_ON_INIT), + MSTP("vpu0", &div4_clks[DIV4_B], MSTPCR2, 1, CLK_ENABLE_ON_INIT), + MSTP("lcdc0", &div4_clks[DIV4_B], MSTPCR2, 0, 0), +}; + +int __init arch_clk_init(void) +{ + int k, ret = 0; + + /* autodetect extal or dll configuration */ + if (__raw_readl(PLLCR) & 0x1000) + pll_clk.parent = &dll_clk; + else + pll_clk.parent = &extal_clk; + + for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++) + ret = clk_register(main_clks[k]); + + if (!ret) + ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table); + + if (!ret) + ret = sh_clk_div6_register(div6_clks, ARRAY_SIZE(div6_clks)); + + if (!ret) + ret = sh_clk_mstp32_register(mstp_clks, ARRAY_SIZE(mstp_clks)); + + return ret; +} diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c index 8aaaac2..6ca7c74 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c @@ -1,7 +1,7 @@ /* * arch/sh/kernel/cpu/sh4a/clock-sh7722.c * - * SH7722 & SH7366 support for the clock framework + * SH7722 support for the clock framework * * Copyright (c) 2006-2007 Nomad Global Solutions Inc * Based on code for sh7343 by Paul Mundt @@ -654,46 +654,6 @@ static struct clk sh7722_mstpcr_clocks[] = { MSTPCR("vpu0", "bus_clk", 2, 1, CLK_ENABLE_ON_INIT), MSTPCR("lcdc0", "bus_clk", 2, 0, 0), #endif -#if defined(CONFIG_CPU_SUBTYPE_SH7366) - /* See page 52 of Datasheet V0.40: Overview -> Block Diagram */ - MSTPCR("tlb0", "cpu_clk", 0, 31, 0), - MSTPCR("ic0", "cpu_clk", 0, 30, 0), - MSTPCR("oc0", "cpu_clk", 0, 29, 0), - MSTPCR("rsmem0", "sh_clk", 0, 28, CLK_ENABLE_ON_INIT), - MSTPCR("xymem0", "cpu_clk", 0, 26, CLK_ENABLE_ON_INIT), - MSTPCR("intc30", "peripheral_clk", 0, 23, 0), - MSTPCR("intc0", "peripheral_clk", 0, 22, 0), - MSTPCR("dmac0", "bus_clk", 0, 21, 0), - MSTPCR("sh0", "sh_clk", 0, 20, 0), - MSTPCR("hudi0", "peripheral_clk", 0, 19, 0), - MSTPCR("ubc0", "cpu_clk", 0, 17, 0), - MSTPCR("tmu0", "peripheral_clk", 0, 15, 0), - MSTPCR("cmt0", "r_clk", 0, 14, 0), - MSTPCR("rwdt0", "r_clk", 0, 13, 0), - MSTPCR("flctl0", "peripheral_clk", 0, 10, 0), - MSTPCR("scif0", "peripheral_clk", 0, 7, 0), - MSTPCR("scif1", "bus_clk", 0, 6, 0), - MSTPCR("scif2", "bus_clk", 0, 5, 0), - MSTPCR("msiof0", "peripheral_clk", 0, 2, 0), - MSTPCR("sbr0", "peripheral_clk", 0, 1, 0), - MSTPCR("i2c0", "peripheral_clk", 1, 9, 0), - MSTPCR("icb0", "bus_clk", 2, 27, 0), - MSTPCR("meram0", "sh_clk", 2, 26, 0), - MSTPCR("dacc0", "peripheral_clk", 2, 24, 0), - MSTPCR("dacy0", "peripheral_clk", 2, 23, 0), - MSTPCR("tsif0", "bus_clk", 2, 22, 0), - MSTPCR("sdhi0", "bus_clk", 2, 18, 0), - MSTPCR("mmcif0", "bus_clk", 2, 17, 0), - MSTPCR("usb0", "bus_clk", 2, 11, 0), - MSTPCR("siu0", "bus_clk", 2, 8, 0), - MSTPCR("veu1", "bus_clk", 2, 7, CLK_ENABLE_ON_INIT), - MSTPCR("vou0", "bus_clk", 2, 5, 0), - MSTPCR("beu0", "bus_clk", 2, 4, 0), - MSTPCR("ceu0", "bus_clk", 2, 3, 0), - MSTPCR("veu0", "bus_clk", 2, 2, CLK_ENABLE_ON_INIT), - MSTPCR("vpu0", "bus_clk", 2, 1, CLK_ENABLE_ON_INIT), - MSTPCR("lcdc0", "bus_clk", 2, 0, 0), -#endif }; static struct clk *sh7722_clocks[] = { |
