diff options
Diffstat (limited to 'arch/arm/mach-shmobile/clock-r8a73a4.c')
| -rw-r--r-- | arch/arm/mach-shmobile/clock-r8a73a4.c | 659 |
1 files changed, 0 insertions, 659 deletions
diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c deleted file mode 100644 index 1cf44dc6d718..000000000000 --- a/arch/arm/mach-shmobile/clock-r8a73a4.c +++ /dev/null @@ -1,659 +0,0 @@ -/* - * r8a73a4 clock framework support - * - * Copyright (C) 2013 Renesas Solutions Corp. - * Copyright (C) 2013 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; 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/init.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/sh_clk.h> -#include <linux/clkdev.h> -#include "common.h" -#include "clock.h" - -#define CPG_BASE 0xe6150000 -#define CPG_LEN 0x270 - -#define SMSTPCR2 0xe6150138 -#define SMSTPCR3 0xe615013c -#define SMSTPCR4 0xe6150140 -#define SMSTPCR5 0xe6150144 - -#define FRQCRA 0xE6150000 -#define FRQCRB 0xE6150004 -#define FRQCRC 0xE61500E0 -#define VCLKCR1 0xE6150008 -#define VCLKCR2 0xE615000C -#define VCLKCR3 0xE615001C -#define VCLKCR4 0xE6150014 -#define VCLKCR5 0xE6150034 -#define ZBCKCR 0xE6150010 -#define SD0CKCR 0xE6150074 -#define SD1CKCR 0xE6150078 -#define SD2CKCR 0xE615007C -#define MMC0CKCR 0xE6150240 -#define MMC1CKCR 0xE6150244 -#define FSIACKCR 0xE6150018 -#define FSIBCKCR 0xE6150090 -#define MPCKCR 0xe6150080 -#define SPUVCKCR 0xE6150094 -#define HSICKCR 0xE615026C -#define M4CKCR 0xE6150098 -#define PLLECR 0xE61500D0 -#define PLL0CR 0xE61500D8 -#define PLL1CR 0xE6150028 -#define PLL2CR 0xE615002C -#define PLL2SCR 0xE61501F4 -#define PLL2HCR 0xE61501E4 -#define CKSCR 0xE61500C0 - -#define CPG_MAP(o) ((o - CPG_BASE) + cpg_mapping.base) - -static struct clk_mapping cpg_mapping = { - .phys = CPG_BASE, - .len = CPG_LEN, -}; - -static struct clk extalr_clk = { - .rate = 32768, - .mapping = &cpg_mapping, -}; - -static struct clk extal1_clk = { - .rate = 26000000, - .mapping = &cpg_mapping, -}; - -static struct clk extal2_clk = { - .rate = 48000000, - .mapping = &cpg_mapping, -}; - -static struct sh_clk_ops followparent_clk_ops = { - .recalc = followparent_recalc, -}; - -static struct clk main_clk = { - /* .parent will be set r8a73a4_clock_init */ - .ops = &followparent_clk_ops, -}; - -SH_CLK_RATIO(div2, 1, 2); -SH_CLK_RATIO(div4, 1, 4); - -SH_FIXED_RATIO_CLK(main_div2_clk, main_clk, div2); -SH_FIXED_RATIO_CLK(extal1_div2_clk, extal1_clk, div2); -SH_FIXED_RATIO_CLK(extal2_div2_clk, extal2_clk, div2); -SH_FIXED_RATIO_CLK(extal2_div4_clk, extal2_clk, div4); - -/* External FSIACK/FSIBCK clock */ -static struct clk fsiack_clk = { -}; - -static struct clk fsibck_clk = { -}; - -/* - * PLL clocks - */ -static struct clk *pll_parent_main[] = { - [0] = &main_clk, - [1] = &main_div2_clk -}; - -static struct clk *pll_parent_main_extal[8] = { - [0] = &main_div2_clk, - [1] = &extal2_div2_clk, - [3] = &extal2_div4_clk, - [4] = &main_clk, - [5] = &extal2_clk, -}; - -static unsigned long pll_recalc(struct clk *clk) -{ - unsigned long mult = 1; - - if (ioread32(CPG_MAP(PLLECR)) & (1 << clk->enable_bit)) - mult = (((ioread32(clk->mapped_reg) >> 24) & 0x7f) + 1); - - return clk->parent->rate * mult; -} - -static int pll_set_parent(struct clk *clk, struct clk *parent) -{ - u32 val; - int i, ret; - - if (!clk->parent_table || !clk->parent_num) - return -EINVAL; - - /* Search the parent */ - for (i = 0; i < clk->parent_num; i++) - if (clk->parent_table[i] == parent) - break; - - if (i == clk->parent_num) - return -ENODEV; - - ret = clk_reparent(clk, parent); - if (ret < 0) - return ret; - - val = ioread32(clk->mapped_reg) & - ~(((1 << clk->src_width) - 1) << clk->src_shift); - - iowrite32(val | i << clk->src_shift, clk->mapped_reg); - - return 0; -} - -static struct sh_clk_ops pll_clk_ops = { - .recalc = pll_recalc, - .set_parent = pll_set_parent, -}; - -#define PLL_CLOCK(name, p, pt, w, s, reg, e) \ - static struct clk name = { \ - .ops = &pll_clk_ops, \ - .flags = CLK_ENABLE_ON_INIT, \ - .parent = p, \ - .parent_table = pt, \ - .parent_num = ARRAY_SIZE(pt), \ - .src_width = w, \ - .src_shift = s, \ - .enable_reg = (void __iomem *)reg, \ - .enable_bit = e, \ - .mapping = &cpg_mapping, \ - } - -PLL_CLOCK(pll0_clk, &main_clk, pll_parent_main, 1, 20, PLL0CR, 0); -PLL_CLOCK(pll1_clk, &main_clk, pll_parent_main, 1, 7, PLL1CR, 1); -PLL_CLOCK(pll2_clk, &main_div2_clk, pll_parent_main_extal, 3, 5, PLL2CR, 2); -PLL_CLOCK(pll2s_clk, &main_div2_clk, pll_parent_main_extal, 3, 5, PLL2SCR, 4); -PLL_CLOCK(pll2h_clk, &main_div2_clk, pll_parent_main_extal, 3, 5, PLL2HCR, 5); - -SH_FIXED_RATIO_CLK(pll1_div2_clk, pll1_clk, div2); - -static atomic_t frqcr_lock; - -/* Several clocks need to access FRQCRB, have to lock */ -static bool frqcr_kick_check(struct clk *clk) -{ - return !(ioread32(CPG_MAP(FRQCRB)) & BIT(31)); -} - -static int frqcr_kick_do(struct clk *clk) -{ - int i; - - /* set KICK bit in FRQCRB to update hardware setting, check success */ - iowrite32(ioread32(CPG_MAP(FRQCRB)) | BIT(31), CPG_MAP(FRQCRB)); - for (i = 1000; i; i--) - if (ioread32(CPG_MAP(FRQCRB)) & BIT(31)) - cpu_relax(); - else - return 0; - - return -ETIMEDOUT; -} - -static int zclk_set_rate(struct clk *clk, unsigned long rate) -{ - void __iomem *frqcrc; - int ret; - unsigned long step, p_rate; - u32 val; - - if (!clk->parent || !__clk_get(clk->parent)) - return -ENODEV; - - if (!atomic_inc_and_test(&frqcr_lock) || !frqcr_kick_check(clk)) { - ret = -EBUSY; - goto done; - } - - /* - * Users are supposed to first call clk_set_rate() only with - * clk_round_rate() results. So, we don't fix wrong rates here, but - * guard against them anyway - */ - - p_rate = clk_get_rate(clk->parent); - if (rate == p_rate) { - val = 0; - } else { - step = DIV_ROUND_CLOSEST(p_rate, 32); - - if (rate > p_rate || rate < step) { - ret = -EINVAL; - goto done; - } - - val = 32 - rate / step; - } - - frqcrc = clk->mapped_reg + (FRQCRC - (u32)clk->enable_reg); - - iowrite32((ioread32(frqcrc) & ~(clk->div_mask << clk->enable_bit)) | - (val << clk->enable_bit), frqcrc); - - ret = frqcr_kick_do(clk); - -done: - atomic_dec(&frqcr_lock); - __clk_put(clk->parent); - return ret; -} - -static long zclk_round_rate(struct clk *clk, unsigned long rate) -{ - /* - * theoretical rate = parent rate * multiplier / 32, - * where 1 <= multiplier <= 32. Therefore we should do - * multiplier = rate * 32 / parent rate - * rounded rate = parent rate * multiplier / 32. - * However, multiplication before division won't fit in 32 bits, so - * we sacrifice some precision by first dividing and then multiplying. - * To find the nearest divisor we calculate both and pick up the best - * one. This avoids 64-bit arithmetics. - */ - unsigned long step, mul_min, mul_max, rate_min, rate_max; - - rate_max = clk_get_rate(clk->parent); - - /* output freq <= parent */ - if (rate >= rate_max) - return rate_max; - - step = DIV_ROUND_CLOSEST(rate_max, 32); - /* output freq >= parent / 32 */ - if (step >= rate) - return step; - - mul_min = rate / step; - mul_max = DIV_ROUND_UP(rate, step); - rate_min = step * mul_min; - if (mul_max == mul_min) - return rate_min; - - rate_max = step * mul_max; - - if (rate_max - rate < rate - rate_min) - return rate_max; - - return rate_min; -} - -static unsigned long zclk_recalc(struct clk *clk) -{ - void __iomem *frqcrc = FRQCRC - (u32)clk->enable_reg + clk->mapped_reg; - unsigned int max = clk->div_mask + 1; - unsigned long val = ((ioread32(frqcrc) >> clk->enable_bit) & - clk->div_mask); - - return DIV_ROUND_CLOSEST(clk_get_rate(clk->parent), max) * - (max - val); -} - -static struct sh_clk_ops zclk_ops = { - .recalc = zclk_recalc, - .set_rate = zclk_set_rate, - .round_rate = zclk_round_rate, -}; - -static struct clk z_clk = { - .parent = &pll0_clk, - .div_mask = 0x1f, - .enable_bit = 8, - /* We'll need to access FRQCRB and FRQCRC */ - .enable_reg = (void __iomem *)FRQCRB, - .ops = &zclk_ops, -}; - -/* - * It seems only 1/2 divider is usable in manual mode. 1/2 / 2/3 - * switching is only available in auto-DVFS mode - */ -SH_FIXED_RATIO_CLK(pll0_div2_clk, pll0_clk, div2); - -static struct clk z2_clk = { - .parent = &pll0_div2_clk, - .div_mask = 0x1f, - .enable_bit = 0, - /* We'll need to access FRQCRB and FRQCRC */ - .enable_reg = (void __iomem *)FRQCRB, - .ops = &zclk_ops, -}; - -static struct clk *main_clks[] = { - &extalr_clk, - &extal1_clk, - &extal1_div2_clk, - &extal2_clk, - &extal2_div2_clk, - &extal2_div4_clk, - &main_clk, - &main_div2_clk, - &fsiack_clk, - &fsibck_clk, - &pll0_clk, - &pll1_clk, - &pll1_div2_clk, - &pll2_clk, - &pll2s_clk, - &pll2h_clk, - &z_clk, - &pll0_div2_clk, - &z2_clk, -}; - -/* DIV4 */ -static void div4_kick(struct clk *clk) -{ - if (!WARN(!atomic_inc_and_test(&frqcr_lock), "FRQCR* lock broken!\n")) - frqcr_kick_do(clk); - atomic_dec(&frqcr_lock); -} - -static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18, 24, 0, 36, 48, 10}; - -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_M3, DIV4_B, DIV4_M1, DIV4_M2, - DIV4_ZX, DIV4_ZS, DIV4_HP, - DIV4_NR }; - -static struct clk div4_clks[DIV4_NR] = { - [DIV4_I] = SH_CLK_DIV4(&pll1_clk, FRQCRA, 20, 0x0dff, CLK_ENABLE_ON_INIT), - [DIV4_M3] = SH_CLK_DIV4(&pll1_clk, FRQCRA, 12, 0x1dff, CLK_ENABLE_ON_INIT), - [DIV4_B] = SH_CLK_DIV4(&pll1_clk, FRQCRA, 8, 0x0dff, CLK_ENABLE_ON_INIT), - [DIV4_M1] = SH_CLK_DIV4(&pll1_clk, FRQCRA, 4, 0x1dff, 0), - [DIV4_M2] = SH_CLK_DIV4(&pll1_clk, FRQCRA, 0, 0x1dff, 0), - [DIV4_ZX] = SH_CLK_DIV4(&pll1_clk, FRQCRB, 12, 0x0dff, 0), - [DIV4_ZS] = SH_CLK_DIV4(&pll1_clk, FRQCRB, 8, 0x0dff, 0), - [DIV4_HP] = SH_CLK_DIV4(&pll1_clk, FRQCRB, 4, 0x0dff, 0), -}; - -enum { - DIV6_ZB, - DIV6_SDHI0, DIV6_SDHI1, DIV6_SDHI2, - DIV6_MMC0, DIV6_MMC1, - DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_VCK4, DIV6_VCK5, - DIV6_FSIA, DIV6_FSIB, - DIV6_MP, DIV6_M4, DIV6_HSI, DIV6_SPUV, - DIV6_NR }; - -static struct clk *div6_parents[8] = { - [0] = &pll1_div2_clk, - [1] = &pll2s_clk, - [3] = &extal2_clk, - [4] = &main_div2_clk, - [6] = &extalr_clk, -}; - -static struct clk *fsia_parents[4] = { - [0] = &pll1_div2_clk, - [1] = &pll2s_clk, - [2] = &fsiack_clk, -}; - -static struct clk *fsib_parents[4] = { - [0] = &pll1_div2_clk, - [1] = &pll2s_clk, - [2] = &fsibck_clk, -}; - -static struct clk *mp_parents[4] = { - [0] = &pll1_div2_clk, - [1] = &pll2s_clk, - [2] = &extal2_clk, - [3] = &extal2_clk, -}; - -static struct clk *m4_parents[2] = { - [0] = &pll2s_clk, -}; - -static struct clk *hsi_parents[4] = { - [0] = &pll2h_clk, - [1] = &pll1_div2_clk, - [3] = &pll2s_clk, -}; - -/*** FIXME *** - * SH_CLK_DIV6_EXT() macro doesn't care .mapping - * but, it is necessary on R-Car (= ioremap() base CPG) - * The difference between - * SH_CLK_DIV6_EXT() <--> SH_CLK_MAP_DIV6_EXT() - * is only .mapping - */ -#define SH_CLK_MAP_DIV6_EXT(_reg, _flags, _parents, \ - _num_parents, _src_shift, _src_width) \ -{ \ - .enable_reg = (void __iomem *)_reg, \ - .enable_bit = 0, /* unused */ \ - .flags = _flags | CLK_MASK_DIV_ON_DISABLE, \ - .div_mask = SH_CLK_DIV6_MSK, \ - .parent_table = _parents, \ - .parent_num = _num_parents, \ - .src_shift = _src_shift, \ - .src_width = _src_width, \ - .mapping = &cpg_mapping, \ -} - -static struct clk div6_clks[DIV6_NR] = { - [DIV6_ZB] = SH_CLK_MAP_DIV6_EXT(ZBCKCR, CLK_ENABLE_ON_INIT, - div6_parents, 2, 7, 1), - [DIV6_SDHI0] = SH_CLK_MAP_DIV6_EXT(SD0CKCR, 0, - div6_parents, 2, 6, 2), - [DIV6_SDHI1] = SH_CLK_MAP_DIV6_EXT(SD1CKCR, 0, - div6_parents, 2, 6, 2), - [DIV6_SDHI2] = SH_CLK_MAP_DIV6_EXT(SD2CKCR, 0, - div6_parents, 2, 6, 2), - [DIV6_MMC0] = SH_CLK_MAP_DIV6_EXT(MMC0CKCR, 0, - div6_parents, 2, 6, 2), - [DIV6_MMC1] = SH_CLK_MAP_DIV6_EXT(MMC1CKCR, 0, - div6_parents, 2, 6, 2), - [DIV6_VCK1] = SH_CLK_MAP_DIV6_EXT(VCLKCR1, 0, /* didn't care bit[6-7] */ - div6_parents, ARRAY_SIZE(div6_parents), 12, 3), - [DIV6_VCK2] = SH_CLK_MAP_DIV6_EXT(VCLKCR2, 0, /* didn't care bit[6-7] */ - div6_parents, ARRAY_SIZE(div6_parents), 12, 3), - [DIV6_VCK3] = SH_CLK_MAP_DIV6_EXT(VCLKCR3, 0, /* didn't care bit[6-7] */ - div6_parents, ARRAY_SIZE(div6_parents), 12, 3), - [DIV6_VCK4] = SH_CLK_MAP_DIV6_EXT(VCLKCR4, 0, /* didn't care bit[6-7] */ - div6_parents, ARRAY_SIZE(div6_parents), 12, 3), - [DIV6_VCK5] = SH_CLK_MAP_DIV6_EXT(VCLKCR5, 0, /* didn't care bit[6-7] */ - div6_parents, ARRAY_SIZE(div6_parents), 12, 3), - [DIV6_FSIA] = SH_CLK_MAP_DIV6_EXT(FSIACKCR, 0, - fsia_parents, ARRAY_SIZE(fsia_parents), 6, 2), - [DIV6_FSIB] = SH_CLK_MAP_DIV6_EXT(FSIBCKCR, 0, - fsib_parents, ARRAY_SIZE(fsib_parents), 6, 2), - [DIV6_MP] = SH_CLK_MAP_DIV6_EXT(MPCKCR, 0, /* it needs bit[9-11] control */ - mp_parents, ARRAY_SIZE(mp_parents), 6, 2), - /* pll2s will be selected always for M4 */ - [DIV6_M4] = SH_CLK_MAP_DIV6_EXT(M4CKCR, 0, /* it needs bit[9] control */ - m4_parents, ARRAY_SIZE(m4_parents), 6, 1), - [DIV6_HSI] = SH_CLK_MAP_DIV6_EXT(HSICKCR, 0, /* it needs bit[9] control */ - hsi_parents, ARRAY_SIZE(hsi_parents), 6, 2), - [DIV6_SPUV] = SH_CLK_MAP_DIV6_EXT(SPUVCKCR, 0, - mp_parents, ARRAY_SIZE(mp_parents), 6, 2), -}; - -/* MSTP */ -enum { - MSTP218, MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, - MSTP329, MSTP323, MSTP318, MSTP317, MSTP316, - MSTP315, MSTP314, MSTP313, MSTP312, MSTP305, MSTP300, - MSTP411, MSTP410, MSTP409, - MSTP522, MSTP515, - MSTP_NR -}; - -static struct clk mstp_clks[MSTP_NR] = { - [MSTP204] = SH_CLK_MSTP32(&div6_clks[DIV6_MP], SMSTPCR2, 4, 0), /* SCIFA0 */ - [MSTP203] = SH_CLK_MSTP32(&div6_clks[DIV6_MP], SMSTPCR2, 3, 0), /* SCIFA1 */ - [MSTP206] = SH_CLK_MSTP32(&div6_clks[DIV6_MP], SMSTPCR2, 6, 0), /* SCIFB0 */ - [MSTP207] = SH_CLK_MSTP32(&div6_clks[DIV6_MP], SMSTPCR2, 7, 0), /* SCIFB1 */ - [MSTP216] = SH_CLK_MSTP32(&div6_clks[DIV6_MP], SMSTPCR2, 16, 0), /* SCIFB2 */ - [MSTP217] = SH_CLK_MSTP32(&div6_clks[DIV6_MP], SMSTPCR2, 17, 0), /* SCIFB3 */ - [MSTP218] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC */ - [MSTP300] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR3, 0, 0), /* IIC2 */ - [MSTP305] = SH_CLK_MSTP32(&div6_clks[DIV6_MMC1],SMSTPCR3, 5, 0), /* MMCIF1 */ - [MSTP312] = SH_CLK_MSTP32(&div6_clks[DIV6_SDHI2],SMSTPCR3, 12, 0), /* SDHI2 */ - [MSTP313] = SH_CLK_MSTP32(&div6_clks[DIV6_SDHI1],SMSTPCR3, 13, 0), /* SDHI1 */ - [MSTP314] = SH_CLK_MSTP32(&div6_clks[DIV6_SDHI0],SMSTPCR3, 14, 0), /* SDHI0 */ - [MSTP315] = SH_CLK_MSTP32(&div6_clks[DIV6_MMC0],SMSTPCR3, 15, 0), /* MMCIF0 */ - [MSTP316] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR3, 16, 0), /* IIC6 */ - [MSTP317] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR3, 17, 0), /* IIC7 */ - [MSTP318] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR3, 18, 0), /* IIC0 */ - [MSTP323] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR3, 23, 0), /* IIC1 */ - [MSTP329] = SH_CLK_MSTP32(&extalr_clk, SMSTPCR3, 29, 0), /* CMT10 */ - [MSTP409] = SH_CLK_MSTP32(&main_div2_clk, SMSTPCR4, 9, 0), /* IIC5 */ - [MSTP410] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR4, 10, 0), /* IIC4 */ - [MSTP411] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR4, 11, 0), /* IIC3 */ - [MSTP522] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR5, 22, 0), /* Thermal */ - [MSTP515] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR5, 15, 0), /* IIC8 */ -}; - -static struct clk_lookup lookups[] = { - /* main clock */ - CLKDEV_CON_ID("extal1", &extal1_clk), - CLKDEV_CON_ID("extal1_div2", &extal1_div2_clk), - CLKDEV_CON_ID("extal2", &extal2_clk), - CLKDEV_CON_ID("extal2_div2", &extal2_div2_clk), - CLKDEV_CON_ID("extal2_div4", &extal2_div4_clk), - CLKDEV_CON_ID("fsiack", &fsiack_clk), - CLKDEV_CON_ID("fsibck", &fsibck_clk), - - /* pll clock */ - CLKDEV_CON_ID("pll1", &pll1_clk), - CLKDEV_CON_ID("pll1_div2", &pll1_div2_clk), - CLKDEV_CON_ID("pll2", &pll2_clk), - CLKDEV_CON_ID("pll2s", &pll2s_clk), - CLKDEV_CON_ID("pll2h", &pll2h_clk), - - /* CPU clock */ - CLKDEV_DEV_ID("cpu0", &z_clk), - - /* DIV6 */ - CLKDEV_CON_ID("zb", &div6_clks[DIV6_ZB]), - CLKDEV_CON_ID("vck1", &div6_clks[DIV6_VCK1]), - CLKDEV_CON_ID("vck2", &div6_clks[DIV6_VCK2]), - CLKDEV_CON_ID("vck3", &div6_clks[DIV6_VCK3]), - CLKDEV_CON_ID("vck4", &div6_clks[DIV6_VCK4]), - CLKDEV_CON_ID("vck5", &div6_clks[DIV6_VCK5]), - CLKDEV_CON_ID("fsia", &div6_clks[DIV6_FSIA]), - CLKDEV_CON_ID("fsib", &div6_clks[DIV6_FSIB]), - CLKDEV_CON_ID("mp", &div6_clks[DIV6_MP]), - CLKDEV_CON_ID("m4", &div6_clks[DIV6_M4]), - CLKDEV_CON_ID("hsi", &div6_clks[DIV6_HSI]), - CLKDEV_CON_ID("spuv", &div6_clks[DIV6_SPUV]), - - /* MSTP */ - CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), - CLKDEV_DEV_ID("e6c40000.serial", &mstp_clks[MSTP204]), - CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), - CLKDEV_DEV_ID("e6c50000.serial", &mstp_clks[MSTP203]), - CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP206]), - CLKDEV_DEV_ID("e6c20000.serial", &mstp_clks[MSTP206]), - CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP207]), - CLKDEV_DEV_ID("e6c30000.serial", &mstp_clks[MSTP207]), - CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP216]), - CLKDEV_DEV_ID("e6ce0000.serial", &mstp_clks[MSTP216]), - CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP217]), - CLKDEV_DEV_ID("e6cf0000.serial", &mstp_clks[MSTP217]), - CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), - CLKDEV_DEV_ID("e6700020.dma-controller", &mstp_clks[MSTP218]), - CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]), - CLKDEV_DEV_ID("e6520000.i2c", &mstp_clks[MSTP300]), - CLKDEV_DEV_ID("sh_mmcif.1", &mstp_clks[MSTP305]), - CLKDEV_DEV_ID("ee220000.mmc", &mstp_clks[MSTP305]), - CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP312]), - CLKDEV_DEV_ID("ee140000.sd", &mstp_clks[MSTP312]), - CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), - CLKDEV_DEV_ID("ee120000.sd", &mstp_clks[MSTP313]), - CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), - CLKDEV_DEV_ID("ee100000.sd", &mstp_clks[MSTP314]), - CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP315]), - CLKDEV_DEV_ID("ee200000.mmc", &mstp_clks[MSTP315]), - CLKDEV_DEV_ID("e6550000.i2c", &mstp_clks[MSTP316]), - CLKDEV_DEV_ID("e6560000.i2c", &mstp_clks[MSTP317]), - CLKDEV_DEV_ID("e6500000.i2c", &mstp_clks[MSTP318]), - CLKDEV_DEV_ID("e6510000.i2c", &mstp_clks[MSTP323]), - CLKDEV_ICK_ID("fck", "sh-cmt-48-gen2.1", &mstp_clks[MSTP329]), - CLKDEV_ICK_ID("fck", "e6130000.timer", &mstp_clks[MSTP329]), - CLKDEV_DEV_ID("e60b0000.i2c", &mstp_clks[MSTP409]), - CLKDEV_DEV_ID("e6540000.i2c", &mstp_clks[MSTP410]), - CLKDEV_DEV_ID("e6530000.i2c", &mstp_clks[MSTP411]), - CLKDEV_DEV_ID("e6570000.i2c", &mstp_clks[MSTP515]), - - /* for DT */ - CLKDEV_DEV_ID("e61f0000.thermal", &mstp_clks[MSTP522]), -}; - -void __init r8a73a4_clock_init(void) -{ - void __iomem *reg; - int k, ret = 0; - u32 ckscr; - - atomic_set(&frqcr_lock, -1); - - reg = ioremap_nocache(CKSCR, PAGE_SIZE); - BUG_ON(!reg); - ckscr = ioread32(reg); - iounmap(reg); - - switch ((ckscr >> 28) & 0x3) { - case 0: - main_clk.parent = &extal1_clk; - break; - case 1: - main_clk.parent = &extal1_div2_clk; - break; - case 2: - main_clk.parent = &extal2_clk; - break; - case 3: - main_clk.parent = &extal2_div2_clk; - break; - } - - 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_reparent_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 r8a73a4 clocks\n"); -} |