diff options
Diffstat (limited to 'arch/arm/mach-shmobile/clock-sh7377.c')
| -rw-r--r-- | arch/arm/mach-shmobile/clock-sh7377.c | 366 |
1 files changed, 0 insertions, 366 deletions
diff --git a/arch/arm/mach-shmobile/clock-sh7377.c b/arch/arm/mach-shmobile/clock-sh7377.c deleted file mode 100644 index b8480d19e1c8..000000000000 --- a/arch/arm/mach-shmobile/clock-sh7377.c +++ /dev/null @@ -1,366 +0,0 @@ -/* - * SH7377 clock framework support - * - * Copyright (C) 2010 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 <linux/sh_clk.h> -#include <linux/clkdev.h> -#include <mach/common.h> - -/* SH7377 registers */ -#define RTFRQCR IOMEM(0xe6150000) -#define SYFRQCR IOMEM(0xe6150004) -#define CMFRQCR IOMEM(0xe61500E0) -#define VCLKCR1 IOMEM(0xe6150008) -#define VCLKCR2 IOMEM(0xe615000C) -#define VCLKCR3 IOMEM(0xe615001C) -#define FMSICKCR IOMEM(0xe6150010) -#define FMSOCKCR IOMEM(0xe6150014) -#define FSICKCR IOMEM(0xe6150018) -#define PLLC1CR IOMEM(0xe6150028) -#define PLLC2CR IOMEM(0xe615002C) -#define SUBUSBCKCR IOMEM(0xe6150080) -#define SPUCKCR IOMEM(0xe6150084) -#define MSUCKCR IOMEM(0xe6150088) -#define MVI3CKCR IOMEM(0xe6150090) -#define HDMICKCR IOMEM(0xe6150094) -#define MFCK1CR IOMEM(0xe6150098) -#define MFCK2CR IOMEM(0xe615009C) -#define DSITCKCR IOMEM(0xe6150060) -#define DSIPCKCR IOMEM(0xe6150064) -#define SMSTPCR0 IOMEM(0xe6150130) -#define SMSTPCR1 IOMEM(0xe6150134) -#define SMSTPCR2 IOMEM(0xe6150138) -#define SMSTPCR3 IOMEM(0xe615013C) -#define SMSTPCR4 IOMEM(0xe6150140) - -/* Fixed 32 KHz root clock from EXTALR pin */ -static struct clk r_clk = { - .rate = 32768, -}; - -/* - * 26MHz default rate for the EXTALC1 root input clock. - * If needed, reset this with clk_set_rate() from the platform code. - */ -struct clk sh7377_extalc1_clk = { - .rate = 26666666, -}; - -/* - * 48MHz default rate for the EXTAL2 root input clock. - * If needed, reset this with clk_set_rate() from the platform code. - */ -struct clk sh7377_extal2_clk = { - .rate = 48000000, -}; - -/* A fixed divide-by-2 block */ -static unsigned long div2_recalc(struct clk *clk) -{ - return clk->parent->rate / 2; -} - -static struct sh_clk_ops div2_clk_ops = { - .recalc = div2_recalc, -}; - -/* Divide extalc1 by two */ -static struct clk extalc1_div2_clk = { - .ops = &div2_clk_ops, - .parent = &sh7377_extalc1_clk, -}; - -/* Divide extal2 by two */ -static struct clk extal2_div2_clk = { - .ops = &div2_clk_ops, - .parent = &sh7377_extal2_clk, -}; - -/* Divide extal2 by four */ -static struct clk extal2_div4_clk = { - .ops = &div2_clk_ops, - .parent = &extal2_div2_clk, -}; - -/* PLLC1 */ -static unsigned long pllc1_recalc(struct clk *clk) -{ - unsigned long mult = 1; - - if (__raw_readl(PLLC1CR) & (1 << 14)) - mult = (((__raw_readl(RTFRQCR) >> 24) & 0x3f) + 1) * 2; - - return clk->parent->rate * mult; -} - -static struct sh_clk_ops pllc1_clk_ops = { - .recalc = pllc1_recalc, -}; - -static struct clk pllc1_clk = { - .ops = &pllc1_clk_ops, - .flags = CLK_ENABLE_ON_INIT, - .parent = &extalc1_div2_clk, -}; - -/* Divide PLLC1 by two */ -static struct clk pllc1_div2_clk = { - .ops = &div2_clk_ops, - .parent = &pllc1_clk, -}; - -/* PLLC2 */ -static unsigned long pllc2_recalc(struct clk *clk) -{ - unsigned long mult = 1; - - if (__raw_readl(PLLC2CR) & (1 << 31)) - mult = (((__raw_readl(PLLC2CR) >> 24) & 0x3f) + 1) * 2; - - return clk->parent->rate * mult; -} - -static struct sh_clk_ops pllc2_clk_ops = { - .recalc = pllc2_recalc, -}; - -static struct clk pllc2_clk = { - .ops = &pllc2_clk_ops, - .flags = CLK_ENABLE_ON_INIT, - .parent = &extalc1_div2_clk, -}; - -static struct clk *main_clks[] = { - &r_clk, - &sh7377_extalc1_clk, - &sh7377_extal2_clk, - &extalc1_div2_clk, - &extal2_div2_clk, - &extal2_div4_clk, - &pllc1_clk, - &pllc1_div2_clk, - &pllc2_clk, -}; - -static void div4_kick(struct clk *clk) -{ - unsigned long value; - - /* set KICK bit in SYFRQCR to update hardware setting */ - value = __raw_readl(SYFRQCR); - value |= (1 << 31); - __raw_writel(value, SYFRQCR); -} - -static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18, - 24, 32, 36, 48, 0, 72, 96, 0 }; - -static struct clk_div_mult_table div4_div_mult_table = { - .divisors = divisors, - .nr_divisors = ARRAY_SIZE(divisors), -}; - -static struct clk_div4_table div4_table = { - .div_mult_table = &div4_div_mult_table, - .kick = div4_kick, -}; - -enum { DIV4_I, DIV4_ZG, DIV4_B, DIV4_M1, DIV4_CSIR, - DIV4_ZTR, DIV4_ZT, DIV4_Z, DIV4_HP, - DIV4_ZS, DIV4_ZB, DIV4_ZB3, DIV4_CP, DIV4_NR }; - -#define DIV4(_reg, _bit, _mask, _flags) \ - SH_CLK_DIV4(&pllc1_clk, _reg, _bit, _mask, _flags) - -static struct clk div4_clks[DIV4_NR] = { - [DIV4_I] = DIV4(RTFRQCR, 20, 0x6fff, CLK_ENABLE_ON_INIT), - [DIV4_ZG] = DIV4(RTFRQCR, 16, 0x6fff, CLK_ENABLE_ON_INIT), - [DIV4_B] = DIV4(RTFRQCR, 8, 0x6fff, CLK_ENABLE_ON_INIT), - [DIV4_M1] = DIV4(RTFRQCR, 4, 0x6fff, CLK_ENABLE_ON_INIT), - [DIV4_CSIR] = DIV4(RTFRQCR, 0, 0x6fff, 0), - [DIV4_ZTR] = DIV4(SYFRQCR, 20, 0x6fff, 0), - [DIV4_ZT] = DIV4(SYFRQCR, 16, 0x6fff, 0), - [DIV4_Z] = DIV4(SYFRQCR, 12, 0x6fff, 0), - [DIV4_HP] = DIV4(SYFRQCR, 4, 0x6fff, 0), - [DIV4_ZS] = DIV4(CMFRQCR, 12, 0x6fff, 0), - [DIV4_ZB] = DIV4(CMFRQCR, 8, 0x6fff, 0), - [DIV4_ZB3] = DIV4(CMFRQCR, 4, 0x6fff, 0), - [DIV4_CP] = DIV4(CMFRQCR, 0, 0x6fff, 0), -}; - -enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_FMSI, DIV6_FMSO, - DIV6_FSI, DIV6_SUB, DIV6_SPU, DIV6_MSU, DIV6_MVI3, DIV6_HDMI, - DIV6_MF1, DIV6_MF2, DIV6_DSIT, DIV6_DSIP, - DIV6_NR }; - -static struct clk div6_clks[] = { - [DIV6_VCK1] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR1, 0), - [DIV6_VCK2] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR2, 0), - [DIV6_VCK3] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR3, 0), - [DIV6_FMSI] = SH_CLK_DIV6(&pllc1_div2_clk, FMSICKCR, 0), - [DIV6_FMSO] = SH_CLK_DIV6(&pllc1_div2_clk, FMSOCKCR, 0), - [DIV6_FSI] = SH_CLK_DIV6(&pllc1_div2_clk, FSICKCR, 0), - [DIV6_SUB] = SH_CLK_DIV6(&sh7377_extal2_clk, SUBUSBCKCR, 0), - [DIV6_SPU] = SH_CLK_DIV6(&pllc1_div2_clk, SPUCKCR, 0), - [DIV6_MSU] = SH_CLK_DIV6(&pllc1_div2_clk, MSUCKCR, 0), - [DIV6_MVI3] = SH_CLK_DIV6(&pllc1_div2_clk, MVI3CKCR, 0), - [DIV6_HDMI] = SH_CLK_DIV6(&pllc1_div2_clk, HDMICKCR, 0), - [DIV6_MF1] = SH_CLK_DIV6(&pllc1_div2_clk, MFCK1CR, 0), - [DIV6_MF2] = SH_CLK_DIV6(&pllc1_div2_clk, MFCK2CR, 0), - [DIV6_DSIT] = SH_CLK_DIV6(&pllc1_div2_clk, DSITCKCR, 0), - [DIV6_DSIP] = SH_CLK_DIV6(&pllc1_div2_clk, DSIPCKCR, 0), -}; - -enum { MSTP001, - MSTP131, MSTP130, MSTP129, MSTP128, MSTP116, MSTP106, MSTP101, - MSTP223, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200, - MSTP331, MSTP329, MSTP325, MSTP323, MSTP322, - MSTP315, MSTP314, MSTP313, - MSTP403, - MSTP_NR }; - -#define MSTP(_parent, _reg, _bit, _flags) \ - SH_CLK_MSTP32(_parent, _reg, _bit, _flags) - -static struct clk mstp_clks[] = { - [MSTP001] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR0, 1, 0), /* IIC2 */ - [MSTP131] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 31, 0), /* VEU3 */ - [MSTP130] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 30, 0), /* VEU2 */ - [MSTP129] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 29, 0), /* VEU1 */ - [MSTP128] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 28, 0), /* VEU0 */ - [MSTP116] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 16, 0), /* IIC0 */ - [MSTP106] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 6, 0), /* JPU */ - [MSTP101] = MSTP(&div4_clks[DIV4_M1], SMSTPCR1, 1, 0), /* VPU */ - [MSTP223] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR2, 23, 0), /* SPU2 */ - [MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */ - [MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */ - [MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */ - [MSTP203] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 3, 0), /* SCIFA1 */ - [MSTP202] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 2, 0), /* SCIFA2 */ - [MSTP201] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 1, 0), /* SCIFA3 */ - [MSTP200] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 0, 0), /* SCIFA4 */ - [MSTP331] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 31, 0), /* SCIFA6 */ - [MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */ - [MSTP325] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 25, 0), /* IRDA */ - [MSTP323] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 23, 0), /* IIC1 */ - [MSTP322] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 22, 0), /* USB0 */ - [MSTP315] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 15, 0), /* FLCTL */ - [MSTP314] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 14, 0), /* SDHI0 */ - [MSTP313] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 13, 0), /* SDHI1 */ - [MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */ -}; - -static struct clk_lookup lookups[] = { - /* main clocks */ - CLKDEV_CON_ID("r_clk", &r_clk), - CLKDEV_CON_ID("extalc1", &sh7377_extalc1_clk), - CLKDEV_CON_ID("extal2", &sh7377_extal2_clk), - CLKDEV_CON_ID("extalc1_div2_clk", &extalc1_div2_clk), - CLKDEV_CON_ID("extal2_div2_clk", &extal2_div2_clk), - CLKDEV_CON_ID("extal2_div4_clk", &extal2_div4_clk), - CLKDEV_CON_ID("pllc1_clk", &pllc1_clk), - CLKDEV_CON_ID("pllc1_div2_clk", &pllc1_div2_clk), - CLKDEV_CON_ID("pllc2_clk", &pllc2_clk), - - /* DIV4 clocks */ - CLKDEV_CON_ID("i_clk", &div4_clks[DIV4_I]), - CLKDEV_CON_ID("zg_clk", &div4_clks[DIV4_ZG]), - CLKDEV_CON_ID("b_clk", &div4_clks[DIV4_B]), - CLKDEV_CON_ID("m1_clk", &div4_clks[DIV4_M1]), - CLKDEV_CON_ID("csir_clk", &div4_clks[DIV4_CSIR]), - CLKDEV_CON_ID("ztr_clk", &div4_clks[DIV4_ZTR]), - CLKDEV_CON_ID("zt_clk", &div4_clks[DIV4_ZT]), - CLKDEV_CON_ID("z_clk", &div4_clks[DIV4_Z]), - CLKDEV_CON_ID("hp_clk", &div4_clks[DIV4_HP]), - CLKDEV_CON_ID("zs_clk", &div4_clks[DIV4_ZS]), - CLKDEV_CON_ID("zb_clk", &div4_clks[DIV4_ZB]), - CLKDEV_CON_ID("zb3_clk", &div4_clks[DIV4_ZB3]), - CLKDEV_CON_ID("cp_clk", &div4_clks[DIV4_CP]), - - /* DIV6 clocks */ - CLKDEV_CON_ID("vck1_clk", &div6_clks[DIV6_VCK1]), - CLKDEV_CON_ID("vck2_clk", &div6_clks[DIV6_VCK2]), - CLKDEV_CON_ID("vck3_clk", &div6_clks[DIV6_VCK3]), - CLKDEV_CON_ID("fmsi_clk", &div6_clks[DIV6_FMSI]), - CLKDEV_CON_ID("fmso_clk", &div6_clks[DIV6_FMSO]), - CLKDEV_CON_ID("fsi_clk", &div6_clks[DIV6_FSI]), - CLKDEV_CON_ID("sub_clk", &div6_clks[DIV6_SUB]), - CLKDEV_CON_ID("spu_clk", &div6_clks[DIV6_SPU]), - CLKDEV_CON_ID("msu_clk", &div6_clks[DIV6_MSU]), - CLKDEV_CON_ID("mvi3_clk", &div6_clks[DIV6_MVI3]), - CLKDEV_CON_ID("hdmi_clk", &div6_clks[DIV6_HDMI]), - CLKDEV_CON_ID("mf1_clk", &div6_clks[DIV6_MF1]), - CLKDEV_CON_ID("mf2_clk", &div6_clks[DIV6_MF2]), - CLKDEV_CON_ID("dsit_clk", &div6_clks[DIV6_DSIT]), - CLKDEV_CON_ID("dsip_clk", &div6_clks[DIV6_DSIP]), - - /* MSTP32 clocks */ - CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* IIC2 */ - CLKDEV_DEV_ID("uio_pdrv_genirq.4", &mstp_clks[MSTP131]), /* VEU3 */ - CLKDEV_DEV_ID("uio_pdrv_genirq.3", &mstp_clks[MSTP130]), /* VEU2 */ - CLKDEV_DEV_ID("uio_pdrv_genirq.2", &mstp_clks[MSTP129]), /* VEU1 */ - CLKDEV_DEV_ID("uio_pdrv_genirq.1", &mstp_clks[MSTP128]), /* VEU0 */ - CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* IIC0 */ - CLKDEV_DEV_ID("uio_pdrv_genirq.5", &mstp_clks[MSTP106]), /* JPU */ - CLKDEV_DEV_ID("uio_pdrv_genirq.0", &mstp_clks[MSTP101]), /* VPU */ - CLKDEV_DEV_ID("uio_pdrv_genirq.6", &mstp_clks[MSTP223]), /* SPU2DSP0 */ - CLKDEV_DEV_ID("uio_pdrv_genirq.7", &mstp_clks[MSTP223]), /* SPU2DSP1 */ - CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */ - CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP206]), /* SCIFB */ - CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */ - CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), /* SCIFA1 */ - CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]), /* SCIFA2 */ - CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]), /* SCIFA3 */ - CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), /* SCIFA4 */ - CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP331]), /* SCIFA6 */ - CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */ - CLKDEV_DEV_ID("sh_irda", &mstp_clks[MSTP325]), /* IRDA */ - CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* IIC1 */ - CLKDEV_DEV_ID("r8a66597_hcd.0", &mstp_clks[MSTP322]), /* USBHS */ - CLKDEV_DEV_ID("r8a66597_udc.0", &mstp_clks[MSTP322]), /* USBHS */ - CLKDEV_DEV_ID("sh_flctl", &mstp_clks[MSTP315]), /* FLCTL */ - CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */ - CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */ - CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */ -}; - -void __init sh7377_clock_init(void) -{ - int k, ret = 0; - - 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, DIV6_NR); - - if (!ret) - ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); - - clkdev_add_table(lookups, ARRAY_SIZE(lookups)); - - if (!ret) - shmobile_clk_init(); - else - panic("failed to setup sh7377 clocks\n"); -} |