diff options
Diffstat (limited to 'kernel/arch/arm/mach-shmobile/clock-r8a7779.c')
| -rw-r--r-- | kernel/arch/arm/mach-shmobile/clock-r8a7779.c | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/kernel/arch/arm/mach-shmobile/clock-r8a7779.c b/kernel/arch/arm/mach-shmobile/clock-r8a7779.c deleted file mode 100644 index fa8ab2cc9..000000000 --- a/kernel/arch/arm/mach-shmobile/clock-r8a7779.c +++ /dev/null @@ -1,271 +0,0 @@ -/* - * r8a7779 clock framework support - * - * Copyright (C) 2011 Renesas Solutions Corp. - * Copyright (C) 2011 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. - */ -#include <linux/bitops.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/io.h> -#include <linux/sh_clk.h> -#include <linux/clkdev.h> -#include <linux/sh_timer.h> - -#include "clock.h" -#include "common.h" -#include "r8a7779.h" - -/* - * MD1 = 1 MD1 = 0 - * (PLLA = 1500) (PLLA = 1600) - * (MHz) (MHz) - *------------------------------------------------+-------------------- - * clkz 1000 (2/3) 800 (1/2) - * clkzs 250 (1/6) 200 (1/8) - * clki 750 (1/2) 800 (1/2) - * clks 250 (1/6) 200 (1/8) - * clks1 125 (1/12) 100 (1/16) - * clks3 187.5 (1/8) 200 (1/8) - * clks4 93.7 (1/16) 100 (1/16) - * clkp 62.5 (1/24) 50 (1/32) - * clkg 62.5 (1/24) 66.6 (1/24) - * clkb, CLKOUT - * (MD2 = 0) 62.5 (1/24) 66.6 (1/24) - * (MD2 = 1) 41.6 (1/36) 50 (1/32) -*/ - -#define MD(nr) BIT(nr) - -#define MSTPCR0 IOMEM(0xffc80030) -#define MSTPCR1 IOMEM(0xffc80034) -#define MSTPCR3 IOMEM(0xffc8003c) -#define MSTPSR1 IOMEM(0xffc80044) - -/* ioremap() through clock mapping mandatory to avoid - * collision with ARM coherent DMA virtual memory range. - */ - -static struct clk_mapping cpg_mapping = { - .phys = 0xffc80000, - .len = 0x80, -}; - -/* - * Default rate for the root input clock, reset this with clk_set_rate() - * from the platform code. - */ -static struct clk plla_clk = { - /* .rate will be updated on r8a7779_clock_init() */ - .mapping = &cpg_mapping, -}; - -/* - * clock ratio of these clock will be updated - * on r8a7779_clock_init() - */ -SH_FIXED_RATIO_CLK_SET(clkz_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clkzs_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clki_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clks_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clks1_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clks3_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clks4_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clkb_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clkout_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clkp_clk, plla_clk, 1, 1); -SH_FIXED_RATIO_CLK_SET(clkg_clk, plla_clk, 1, 1); - -static struct clk *main_clks[] = { - &plla_clk, - &clkz_clk, - &clkzs_clk, - &clki_clk, - &clks_clk, - &clks1_clk, - &clks3_clk, - &clks4_clk, - &clkb_clk, - &clkout_clk, - &clkp_clk, - &clkg_clk, -}; - -enum { MSTP323, MSTP322, MSTP321, MSTP320, - MSTP120, - MSTP116, MSTP115, MSTP114, - MSTP110, MSTP109, MSTP108, - MSTP103, MSTP101, MSTP100, - MSTP030, - MSTP029, MSTP028, MSTP027, MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021, - MSTP016, MSTP015, MSTP014, - MSTP007, - MSTP_NR }; - -static struct clk mstp_clks[MSTP_NR] = { - [MSTP323] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 23, 0), /* SDHI0 */ - [MSTP322] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 22, 0), /* SDHI1 */ - [MSTP321] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 21, 0), /* SDHI2 */ - [MSTP320] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 20, 0), /* SDHI3 */ - [MSTP120] = SH_CLK_MSTP32_STS(&clks_clk, MSTPCR1, 20, MSTPSR1, 0), /* VIN3 */ - [MSTP116] = SH_CLK_MSTP32_STS(&clkp_clk, MSTPCR1, 16, MSTPSR1, 0), /* PCIe */ - [MSTP115] = SH_CLK_MSTP32_STS(&clkp_clk, MSTPCR1, 15, MSTPSR1, 0), /* SATA */ - [MSTP114] = SH_CLK_MSTP32_STS(&clkp_clk, MSTPCR1, 14, MSTPSR1, 0), /* Ether */ - [MSTP110] = SH_CLK_MSTP32_STS(&clks_clk, MSTPCR1, 10, MSTPSR1, 0), /* VIN0 */ - [MSTP109] = SH_CLK_MSTP32_STS(&clks_clk, MSTPCR1, 9, MSTPSR1, 0), /* VIN1 */ - [MSTP108] = SH_CLK_MSTP32_STS(&clks_clk, MSTPCR1, 8, MSTPSR1, 0), /* VIN2 */ - [MSTP103] = SH_CLK_MSTP32_STS(&clks_clk, MSTPCR1, 3, MSTPSR1, 0), /* DU */ - [MSTP101] = SH_CLK_MSTP32_STS(&clkp_clk, MSTPCR1, 1, MSTPSR1, 0), /* USB2 */ - [MSTP100] = SH_CLK_MSTP32_STS(&clkp_clk, MSTPCR1, 0, MSTPSR1, 0), /* USB0/1 */ - [MSTP030] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 30, 0), /* I2C0 */ - [MSTP029] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 29, 0), /* I2C1 */ - [MSTP028] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 28, 0), /* I2C2 */ - [MSTP027] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 27, 0), /* I2C3 */ - [MSTP026] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 26, 0), /* SCIF0 */ - [MSTP025] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 25, 0), /* SCIF1 */ - [MSTP024] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 24, 0), /* SCIF2 */ - [MSTP023] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 23, 0), /* SCIF3 */ - [MSTP022] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 22, 0), /* SCIF4 */ - [MSTP021] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 21, 0), /* SCIF5 */ - [MSTP016] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 16, 0), /* TMU0 */ - [MSTP015] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 15, 0), /* TMU1 */ - [MSTP014] = SH_CLK_MSTP32(&clkp_clk, MSTPCR0, 14, 0), /* TMU2 */ - [MSTP007] = SH_CLK_MSTP32(&clks_clk, MSTPCR0, 7, 0), /* HSPI */ -}; - -static struct clk_lookup lookups[] = { - /* main clocks */ - CLKDEV_CON_ID("plla_clk", &plla_clk), - CLKDEV_CON_ID("clkz_clk", &clkz_clk), - CLKDEV_CON_ID("clkzs_clk", &clkzs_clk), - - /* DIV4 clocks */ - CLKDEV_CON_ID("shyway_clk", &clks_clk), - CLKDEV_CON_ID("bus_clk", &clkout_clk), - CLKDEV_CON_ID("shyway4_clk", &clks4_clk), - CLKDEV_CON_ID("shyway3_clk", &clks3_clk), - CLKDEV_CON_ID("shyway1_clk", &clks1_clk), - CLKDEV_CON_ID("peripheral_clk", &clkp_clk), - - /* MSTP32 clocks */ - CLKDEV_DEV_ID("r8a7779-vin.3", &mstp_clks[MSTP120]), /* VIN3 */ - CLKDEV_DEV_ID("rcar-pcie", &mstp_clks[MSTP116]), /* PCIe */ - CLKDEV_DEV_ID("sata_rcar", &mstp_clks[MSTP115]), /* SATA */ - CLKDEV_DEV_ID("fc600000.sata", &mstp_clks[MSTP115]), /* SATA w/DT */ - CLKDEV_DEV_ID("r8a777x-ether", &mstp_clks[MSTP114]), /* Ether */ - CLKDEV_DEV_ID("r8a7779-vin.0", &mstp_clks[MSTP110]), /* VIN0 */ - CLKDEV_DEV_ID("r8a7779-vin.1", &mstp_clks[MSTP109]), /* VIN1 */ - CLKDEV_DEV_ID("r8a7779-vin.2", &mstp_clks[MSTP108]), /* VIN2 */ - CLKDEV_DEV_ID("ehci-platform.1", &mstp_clks[MSTP101]), /* USB EHCI port2 */ - CLKDEV_DEV_ID("ohci-platform.1", &mstp_clks[MSTP101]), /* USB OHCI port2 */ - CLKDEV_DEV_ID("ehci-platform.0", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */ - CLKDEV_DEV_ID("ohci-platform.0", &mstp_clks[MSTP100]), /* USB OHCI port0/1 */ - CLKDEV_ICK_ID("fck", "sh-tmu.0", &mstp_clks[MSTP016]), /* TMU0 */ - CLKDEV_DEV_ID("i2c-rcar.0", &mstp_clks[MSTP030]), /* I2C0 */ - CLKDEV_DEV_ID("ffc70000.i2c", &mstp_clks[MSTP030]), /* I2C0 */ - CLKDEV_DEV_ID("i2c-rcar.1", &mstp_clks[MSTP029]), /* I2C1 */ - CLKDEV_DEV_ID("ffc71000.i2c", &mstp_clks[MSTP029]), /* I2C1 */ - CLKDEV_DEV_ID("i2c-rcar.2", &mstp_clks[MSTP028]), /* I2C2 */ - CLKDEV_DEV_ID("ffc72000.i2c", &mstp_clks[MSTP028]), /* I2C2 */ - CLKDEV_DEV_ID("i2c-rcar.3", &mstp_clks[MSTP027]), /* I2C3 */ - CLKDEV_DEV_ID("ffc73000.i2c", &mstp_clks[MSTP027]), /* I2C3 */ - CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP026]), /* SCIF0 */ - CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP025]), /* SCIF1 */ - CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP024]), /* SCIF2 */ - CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP023]), /* SCIF3 */ - CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP022]), /* SCIF4 */ - CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP021]), /* SCIF6 */ - CLKDEV_DEV_ID("sh-hspi.0", &mstp_clks[MSTP007]), /* HSPI0 */ - CLKDEV_DEV_ID("fffc7000.spi", &mstp_clks[MSTP007]), /* HSPI0 */ - CLKDEV_DEV_ID("sh-hspi.1", &mstp_clks[MSTP007]), /* HSPI1 */ - CLKDEV_DEV_ID("fffc8000.spi", &mstp_clks[MSTP007]), /* HSPI1 */ - CLKDEV_DEV_ID("sh-hspi.2", &mstp_clks[MSTP007]), /* HSPI2 */ - CLKDEV_DEV_ID("fffc6000.spi", &mstp_clks[MSTP007]), /* HSPI2 */ - CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP323]), /* SDHI0 */ - CLKDEV_DEV_ID("ffe4c000.sd", &mstp_clks[MSTP323]), /* SDHI0 */ - CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP322]), /* SDHI1 */ - CLKDEV_DEV_ID("ffe4d000.sd", &mstp_clks[MSTP322]), /* SDHI1 */ - CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP321]), /* SDHI2 */ - CLKDEV_DEV_ID("ffe4e000.sd", &mstp_clks[MSTP321]), /* SDHI2 */ - CLKDEV_DEV_ID("sh_mobile_sdhi.3", &mstp_clks[MSTP320]), /* SDHI3 */ - CLKDEV_DEV_ID("ffe4f000.sd", &mstp_clks[MSTP320]), /* SDHI3 */ - CLKDEV_DEV_ID("rcar-du-r8a7779", &mstp_clks[MSTP103]), /* DU */ -}; - -void __init r8a7779_clock_init(void) -{ - u32 mode = r8a7779_read_mode_pins(); - int k, ret = 0; - - if (mode & MD(1)) { - plla_clk.rate = 1500000000; - - SH_CLK_SET_RATIO(&clkz_clk_ratio, 2, 3); - SH_CLK_SET_RATIO(&clkzs_clk_ratio, 1, 6); - SH_CLK_SET_RATIO(&clki_clk_ratio, 1, 2); - SH_CLK_SET_RATIO(&clks_clk_ratio, 1, 6); - SH_CLK_SET_RATIO(&clks1_clk_ratio, 1, 12); - SH_CLK_SET_RATIO(&clks3_clk_ratio, 1, 8); - SH_CLK_SET_RATIO(&clks4_clk_ratio, 1, 16); - SH_CLK_SET_RATIO(&clkp_clk_ratio, 1, 24); - SH_CLK_SET_RATIO(&clkg_clk_ratio, 1, 24); - if (mode & MD(2)) { - SH_CLK_SET_RATIO(&clkb_clk_ratio, 1, 36); - SH_CLK_SET_RATIO(&clkout_clk_ratio, 1, 36); - } else { - SH_CLK_SET_RATIO(&clkb_clk_ratio, 1, 24); - SH_CLK_SET_RATIO(&clkout_clk_ratio, 1, 24); - } - } else { - plla_clk.rate = 1600000000; - - SH_CLK_SET_RATIO(&clkz_clk_ratio, 1, 2); - SH_CLK_SET_RATIO(&clkzs_clk_ratio, 1, 8); - SH_CLK_SET_RATIO(&clki_clk_ratio, 1, 2); - SH_CLK_SET_RATIO(&clks_clk_ratio, 1, 8); - SH_CLK_SET_RATIO(&clks1_clk_ratio, 1, 16); - SH_CLK_SET_RATIO(&clks3_clk_ratio, 1, 8); - SH_CLK_SET_RATIO(&clks4_clk_ratio, 1, 16); - SH_CLK_SET_RATIO(&clkp_clk_ratio, 1, 32); - SH_CLK_SET_RATIO(&clkg_clk_ratio, 1, 24); - if (mode & MD(2)) { - SH_CLK_SET_RATIO(&clkb_clk_ratio, 1, 32); - SH_CLK_SET_RATIO(&clkout_clk_ratio, 1, 32); - } else { - SH_CLK_SET_RATIO(&clkb_clk_ratio, 1, 24); - SH_CLK_SET_RATIO(&clkout_clk_ratio, 1, 24); - } - } - - for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++) - ret = clk_register(main_clks[k]); - - 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 r8a7779 clocks\n"); -} - -/* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */ -void __init __weak r8a7779_register_twd(void) { } - -void __init r8a7779_earlytimer_init(void) -{ - r8a7779_clock_init(); - r8a7779_register_twd(); - shmobile_earlytimer_init(); -} |