| /* |
| * sh73a0 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 <asm/processor.h> |
| #include <mach/clock.h> |
| #include <mach/common.h> |
| |
| #define FRQCRA IOMEM(0xe6150000) |
| #define FRQCRB IOMEM(0xe6150004) |
| #define FRQCRD IOMEM(0xe61500e4) |
| #define VCLKCR1 IOMEM(0xe6150008) |
| #define VCLKCR2 IOMEM(0xe615000C) |
| #define VCLKCR3 IOMEM(0xe615001C) |
| #define ZBCKCR IOMEM(0xe6150010) |
| #define FLCKCR IOMEM(0xe6150014) |
| #define SD0CKCR IOMEM(0xe6150074) |
| #define SD1CKCR IOMEM(0xe6150078) |
| #define SD2CKCR IOMEM(0xe615007C) |
| #define FSIACKCR IOMEM(0xe6150018) |
| #define FSIBCKCR IOMEM(0xe6150090) |
| #define SUBCKCR IOMEM(0xe6150080) |
| #define SPUACKCR IOMEM(0xe6150084) |
| #define SPUVCKCR IOMEM(0xe6150094) |
| #define MSUCKCR IOMEM(0xe6150088) |
| #define HSICKCR IOMEM(0xe615008C) |
| #define MFCK1CR IOMEM(0xe6150098) |
| #define MFCK2CR IOMEM(0xe615009C) |
| #define DSITCKCR IOMEM(0xe6150060) |
| #define DSI0PCKCR IOMEM(0xe6150064) |
| #define DSI1PCKCR IOMEM(0xe6150068) |
| #define DSI0PHYCR 0xe615006C |
| #define DSI1PHYCR 0xe6150070 |
| #define PLLECR IOMEM(0xe61500d0) |
| #define PLL0CR IOMEM(0xe61500d8) |
| #define PLL1CR IOMEM(0xe6150028) |
| #define PLL2CR IOMEM(0xe615002c) |
| #define PLL3CR IOMEM(0xe61500dc) |
| #define SMSTPCR0 IOMEM(0xe6150130) |
| #define SMSTPCR1 IOMEM(0xe6150134) |
| #define SMSTPCR2 IOMEM(0xe6150138) |
| #define SMSTPCR3 IOMEM(0xe615013c) |
| #define SMSTPCR4 IOMEM(0xe6150140) |
| #define SMSTPCR5 IOMEM(0xe6150144) |
| #define CKSCR IOMEM(0xe61500c0) |
| |
| /* Fixed 32 KHz root clock from EXTALR pin */ |
| static struct clk r_clk = { |
| .rate = 32768, |
| }; |
| |
| /* |
| * 26MHz default rate for the EXTAL1 root input clock. |
| * If needed, reset this with clk_set_rate() from the platform code. |
| */ |
| struct clk sh73a0_extal1_clk = { |
| .rate = 26000000, |
| }; |
| |
| /* |
| * 48MHz default rate for the EXTAL2 root input clock. |
| * If needed, reset this with clk_set_rate() from the platform code. |
| */ |
| struct clk sh73a0_extal2_clk = { |
| .rate = 48000000, |
| }; |
| |
| static struct sh_clk_ops main_clk_ops = { |
| .recalc = followparent_recalc, |
| }; |
| |
| /* Main clock */ |
| static struct clk main_clk = { |
| /* .parent wll be set on sh73a0_clock_init() */ |
| .ops = &main_clk_ops, |
| }; |
| |
| /* PLL0, PLL1, PLL2, PLL3 */ |
| static unsigned long pll_recalc(struct clk *clk) |
| { |
| unsigned long mult = 1; |
| |
| if (__raw_readl(PLLECR) & (1 << clk->enable_bit)) { |
| mult = (((__raw_readl(clk->enable_reg) >> 24) & 0x3f) + 1); |
| /* handle CFG bit for PLL1 and PLL2 */ |
| switch (clk->enable_bit) { |
| case 1: |
| case 2: |
| if (__raw_readl(clk->enable_reg) & (1 << 20)) |
| mult *= 2; |
| } |
| } |
| |
| return clk->parent->rate * mult; |
| } |
| |
| static struct sh_clk_ops pll_clk_ops = { |
| .recalc = pll_recalc, |
| }; |
| |
| static struct clk pll0_clk = { |
| .ops = &pll_clk_ops, |
| .flags = CLK_ENABLE_ON_INIT, |
| .parent = &main_clk, |
| .enable_reg = (void __iomem *)PLL0CR, |
| .enable_bit = 0, |
| }; |
| |
| static struct clk pll1_clk = { |
| .ops = &pll_clk_ops, |
| .flags = CLK_ENABLE_ON_INIT, |
| .parent = &main_clk, |
| .enable_reg = (void __iomem *)PLL1CR, |
| .enable_bit = 1, |
| }; |
| |
| static struct clk pll2_clk = { |
| .ops = &pll_clk_ops, |
| .flags = CLK_ENABLE_ON_INIT, |
| .parent = &main_clk, |
| .enable_reg = (void __iomem *)PLL2CR, |
| .enable_bit = 2, |
| }; |
| |
| static struct clk pll3_clk = { |
| .ops = &pll_clk_ops, |
| .flags = CLK_ENABLE_ON_INIT, |
| .parent = &main_clk, |
| .enable_reg = (void __iomem *)PLL3CR, |
| .enable_bit = 3, |
| }; |
| |
| /* A fixed divide block */ |
| SH_CLK_RATIO(div2, 1, 2); |
| SH_CLK_RATIO(div7, 1, 7); |
| SH_CLK_RATIO(div13, 1, 13); |
| |
| SH_FIXED_RATIO_CLK(extal1_div2_clk, sh73a0_extal1_clk, div2); |
| SH_FIXED_RATIO_CLK(extal2_div2_clk, sh73a0_extal2_clk, div2); |
| SH_FIXED_RATIO_CLK(main_div2_clk, main_clk, div2); |
| SH_FIXED_RATIO_CLK(pll1_div2_clk, pll1_clk, div2); |
| SH_FIXED_RATIO_CLK(pll1_div7_clk, pll1_clk, div7); |
| SH_FIXED_RATIO_CLK(pll1_div13_clk, pll1_clk, div13); |
| |
| /* External input clock */ |
| struct clk sh73a0_extcki_clk = { |
| }; |
| |
| struct clk sh73a0_extalr_clk = { |
| }; |
| |
| static struct clk *main_clks[] = { |
| &r_clk, |
| &sh73a0_extal1_clk, |
| &sh73a0_extal2_clk, |
| &extal1_div2_clk, |
| &extal2_div2_clk, |
| &main_clk, |
| &main_div2_clk, |
| &pll0_clk, |
| &pll1_clk, |
| &pll2_clk, |
| &pll3_clk, |
| &pll1_div2_clk, |
| &pll1_div7_clk, |
| &pll1_div13_clk, |
| &sh73a0_extcki_clk, |
| &sh73a0_extalr_clk, |
| }; |
| |
| static int frqcr_kick(void) |
| { |
| int i; |
| |
| /* set KICK bit in FRQCRB to update hardware setting, check success */ |
| __raw_writel(__raw_readl(FRQCRB) | (1 << 31), FRQCRB); |
| for (i = 1000; i; i--) |
| if (__raw_readl(FRQCRB) & (1 << 31)) |
| cpu_relax(); |
| else |
| return i; |
| |
| return -ETIMEDOUT; |
| } |
| |
| static void div4_kick(struct clk *clk) |
| { |
| frqcr_kick(); |
| } |
| |
| static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18, |
| 24, 0, 36, 48, 7 }; |
| |
| 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_M3, DIV4_B, DIV4_M1, DIV4_M2, |
| DIV4_Z, DIV4_ZX, DIV4_HP, DIV4_NR }; |
| |
| #define DIV4(_reg, _bit, _mask, _flags) \ |
| SH_CLK_DIV4(&pll1_clk, _reg, _bit, _mask, _flags) |
| |
| static struct clk div4_clks[DIV4_NR] = { |
| [DIV4_I] = DIV4(FRQCRA, 20, 0xdff, CLK_ENABLE_ON_INIT), |
| /* |
| * ZG clock is dividing PLL0 frequency to supply SGX. Make sure not to |
| * exceed maximum frequencies of 201.5MHz for VDD_DVFS=1.175 and |
| * 239.2MHz for VDD_DVFS=1.315V. |
| */ |
| [DIV4_ZG] = SH_CLK_DIV4(&pll0_clk, FRQCRA, 16, 0xd7f, CLK_ENABLE_ON_INIT), |
| [DIV4_M3] = DIV4(FRQCRA, 12, 0x1dff, CLK_ENABLE_ON_INIT), |
| [DIV4_B] = DIV4(FRQCRA, 8, 0xdff, CLK_ENABLE_ON_INIT), |
| [DIV4_M1] = DIV4(FRQCRA, 4, 0x1dff, 0), |
| [DIV4_M2] = DIV4(FRQCRA, 0, 0x1dff, 0), |
| [DIV4_Z] = SH_CLK_DIV4(&pll0_clk, FRQCRB, 24, 0x97f, 0), |
| [DIV4_ZX] = DIV4(FRQCRB, 12, 0xdff, 0), |
| [DIV4_HP] = DIV4(FRQCRB, 4, 0xdff, 0), |
| }; |
| |
| static unsigned long twd_recalc(struct clk *clk) |
| { |
| return clk_get_rate(clk->parent) / 4; |
| } |
| |
| static struct sh_clk_ops twd_clk_ops = { |
| .recalc = twd_recalc, |
| }; |
| |
| static struct clk twd_clk = { |
| .parent = &div4_clks[DIV4_Z], |
| .ops = &twd_clk_ops, |
| }; |
| |
| static struct sh_clk_ops zclk_ops, kicker_ops; |
| static const struct sh_clk_ops *div4_clk_ops; |
| |
| static int zclk_set_rate(struct clk *clk, unsigned long rate) |
| { |
| int ret; |
| |
| if (!clk->parent || !__clk_get(clk->parent)) |
| return -ENODEV; |
| |
| if (readl(FRQCRB) & (1 << 31)) |
| return -EBUSY; |
| |
| if (rate == clk_get_rate(clk->parent)) { |
| /* 1:1 - switch off divider */ |
| __raw_writel(__raw_readl(FRQCRB) & ~(1 << 28), FRQCRB); |
| /* nullify the divider to prepare for the next time */ |
| ret = div4_clk_ops->set_rate(clk, rate / 2); |
| if (!ret) |
| ret = frqcr_kick(); |
| if (ret > 0) |
| ret = 0; |
| } else { |
| /* Enable the divider */ |
| __raw_writel(__raw_readl(FRQCRB) | (1 << 28), FRQCRB); |
| |
| ret = frqcr_kick(); |
| if (ret >= 0) |
| /* |
| * set the divider - call the DIV4 method, it will kick |
| * FRQCRB too |
| */ |
| ret = div4_clk_ops->set_rate(clk, rate); |
| if (ret < 0) |
| goto esetrate; |
| } |
| |
| esetrate: |
| __clk_put(clk->parent); |
| return ret; |
| } |
| |
| static long zclk_round_rate(struct clk *clk, unsigned long rate) |
| { |
| unsigned long div_freq = div4_clk_ops->round_rate(clk, rate), |
| parent_freq = clk_get_rate(clk->parent); |
| |
| if (rate > div_freq && abs(parent_freq - rate) < rate - div_freq) |
| return parent_freq; |
| |
| return div_freq; |
| } |
| |
| static unsigned long zclk_recalc(struct clk *clk) |
| { |
| /* |
| * Must recalculate frequencies in case PLL0 has been changed, even if |
| * the divisor is unused ATM! |
| */ |
| unsigned long div_freq = div4_clk_ops->recalc(clk); |
| |
| if (__raw_readl(FRQCRB) & (1 << 28)) |
| return div_freq; |
| |
| return clk_get_rate(clk->parent); |
| } |
| |
| static int kicker_set_rate(struct clk *clk, unsigned long rate) |
| { |
| if (__raw_readl(FRQCRB) & (1 << 31)) |
| return -EBUSY; |
| |
| return div4_clk_ops->set_rate(clk, rate); |
| } |
| |
| static void div4_clk_extend(void) |
| { |
| int i; |
| |
| div4_clk_ops = div4_clks[0].ops; |
| |
| /* Add a kicker-busy check before changing the rate */ |
| kicker_ops = *div4_clk_ops; |
| /* We extend the DIV4 clock with a 1:1 pass-through case */ |
| zclk_ops = *div4_clk_ops; |
| |
| kicker_ops.set_rate = kicker_set_rate; |
| zclk_ops.set_rate = zclk_set_rate; |
| zclk_ops.round_rate = zclk_round_rate; |
| zclk_ops.recalc = zclk_recalc; |
| |
| for (i = 0; i < DIV4_NR; i++) |
| div4_clks[i].ops = i == DIV4_Z ? &zclk_ops : &kicker_ops; |
| } |
| |
| enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1, |
| DIV6_FLCTL, DIV6_SDHI0, DIV6_SDHI1, DIV6_SDHI2, |
| DIV6_FSIA, DIV6_FSIB, DIV6_SUB, |
| DIV6_SPUA, DIV6_SPUV, DIV6_MSU, |
| DIV6_HSI, DIV6_MFG1, DIV6_MFG2, |
| DIV6_DSIT, DIV6_DSI0P, DIV6_DSI1P, |
| DIV6_NR }; |
| |
| static struct clk *vck_parent[8] = { |
| [0] = &pll1_div2_clk, |
| [1] = &pll2_clk, |
| [2] = &sh73a0_extcki_clk, |
| [3] = &sh73a0_extal2_clk, |
| [4] = &main_div2_clk, |
| [5] = &sh73a0_extalr_clk, |
| [6] = &main_clk, |
| }; |
| |
| static struct clk *pll_parent[4] = { |
| [0] = &pll1_div2_clk, |
| [1] = &pll2_clk, |
| [2] = &pll1_div13_clk, |
| }; |
| |
| static struct clk *hsi_parent[4] = { |
| [0] = &pll1_div2_clk, |
| [1] = &pll2_clk, |
| [2] = &pll1_div7_clk, |
| }; |
| |
| static struct clk *pll_extal2_parent[] = { |
| [0] = &pll1_div2_clk, |
| [1] = &pll2_clk, |
| [2] = &sh73a0_extal2_clk, |
| [3] = &sh73a0_extal2_clk, |
| }; |
| |
| static struct clk *dsi_parent[8] = { |
| [0] = &pll1_div2_clk, |
| [1] = &pll2_clk, |
| [2] = &main_clk, |
| [3] = &sh73a0_extal2_clk, |
| [4] = &sh73a0_extcki_clk, |
| }; |
| |
| static struct clk div6_clks[DIV6_NR] = { |
| [DIV6_VCK1] = SH_CLK_DIV6_EXT(VCLKCR1, 0, |
| vck_parent, ARRAY_SIZE(vck_parent), 12, 3), |
| [DIV6_VCK2] = SH_CLK_DIV6_EXT(VCLKCR2, 0, |
| vck_parent, ARRAY_SIZE(vck_parent), 12, 3), |
| [DIV6_VCK3] = SH_CLK_DIV6_EXT(VCLKCR3, 0, |
| vck_parent, ARRAY_SIZE(vck_parent), 12, 3), |
| [DIV6_ZB1] = SH_CLK_DIV6_EXT(ZBCKCR, CLK_ENABLE_ON_INIT, |
| pll_parent, ARRAY_SIZE(pll_parent), 7, 1), |
| [DIV6_FLCTL] = SH_CLK_DIV6_EXT(FLCKCR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 7, 1), |
| [DIV6_SDHI0] = SH_CLK_DIV6_EXT(SD0CKCR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 6, 2), |
| [DIV6_SDHI1] = SH_CLK_DIV6_EXT(SD1CKCR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 6, 2), |
| [DIV6_SDHI2] = SH_CLK_DIV6_EXT(SD2CKCR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 6, 2), |
| [DIV6_FSIA] = SH_CLK_DIV6_EXT(FSIACKCR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 6, 1), |
| [DIV6_FSIB] = SH_CLK_DIV6_EXT(FSIBCKCR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 6, 1), |
| [DIV6_SUB] = SH_CLK_DIV6_EXT(SUBCKCR, 0, |
| pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2), |
| [DIV6_SPUA] = SH_CLK_DIV6_EXT(SPUACKCR, 0, |
| pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2), |
| [DIV6_SPUV] = SH_CLK_DIV6_EXT(SPUVCKCR, 0, |
| pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2), |
| [DIV6_MSU] = SH_CLK_DIV6_EXT(MSUCKCR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 7, 1), |
| [DIV6_HSI] = SH_CLK_DIV6_EXT(HSICKCR, 0, |
| hsi_parent, ARRAY_SIZE(hsi_parent), 6, 2), |
| [DIV6_MFG1] = SH_CLK_DIV6_EXT(MFCK1CR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 7, 1), |
| [DIV6_MFG2] = SH_CLK_DIV6_EXT(MFCK2CR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 7, 1), |
| [DIV6_DSIT] = SH_CLK_DIV6_EXT(DSITCKCR, 0, |
| pll_parent, ARRAY_SIZE(pll_parent), 7, 1), |
| [DIV6_DSI0P] = SH_CLK_DIV6_EXT(DSI0PCKCR, 0, |
| dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3), |
| [DIV6_DSI1P] = SH_CLK_DIV6_EXT(DSI1PCKCR, 0, |
| dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3), |
| }; |
| |
| /* DSI DIV */ |
| static unsigned long dsiphy_recalc(struct clk *clk) |
| { |
| u32 value; |
| |
| value = __raw_readl(clk->mapping->base); |
| |
| /* FIXME */ |
| if (!(value & 0x000B8000)) |
| return clk->parent->rate; |
| |
| value &= 0x3f; |
| value += 1; |
| |
| if ((value < 12) || |
| (value > 33)) { |
| pr_err("DSIPHY has wrong value (%d)", value); |
| return 0; |
| } |
| |
| return clk->parent->rate / value; |
| } |
| |
| static long dsiphy_round_rate(struct clk *clk, unsigned long rate) |
| { |
| return clk_rate_mult_range_round(clk, 12, 33, rate); |
| } |
| |
| static void dsiphy_disable(struct clk *clk) |
| { |
| u32 value; |
| |
| value = __raw_readl(clk->mapping->base); |
| value &= ~0x000B8000; |
| |
| __raw_writel(value , clk->mapping->base); |
| } |
| |
| static int dsiphy_enable(struct clk *clk) |
| { |
| u32 value; |
| int multi; |
| |
| value = __raw_readl(clk->mapping->base); |
| multi = (value & 0x3f) + 1; |
| |
| if ((multi < 12) || (multi > 33)) |
| return -EIO; |
| |
| __raw_writel(value | 0x000B8000, clk->mapping->base); |
| |
| return 0; |
| } |
| |
| static int dsiphy_set_rate(struct clk *clk, unsigned long rate) |
| { |
| u32 value; |
| int idx; |
| |
| idx = rate / clk->parent->rate; |
| if ((idx < 12) || (idx > 33)) |
| return -EINVAL; |
| |
| idx += -1; |
| |
| value = __raw_readl(clk->mapping->base); |
| value = (value & ~0x3f) + idx; |
| |
| __raw_writel(value, clk->mapping->base); |
| |
| return 0; |
| } |
| |
| static struct sh_clk_ops dsiphy_clk_ops = { |
| .recalc = dsiphy_recalc, |
| .round_rate = dsiphy_round_rate, |
| .set_rate = dsiphy_set_rate, |
| .enable = dsiphy_enable, |
| .disable = dsiphy_disable, |
| }; |
| |
| static struct clk_mapping dsi0phy_clk_mapping = { |
| .phys = DSI0PHYCR, |
| .len = 4, |
| }; |
| |
| static struct clk_mapping dsi1phy_clk_mapping = { |
| .phys = DSI1PHYCR, |
| .len = 4, |
| }; |
| |
| static struct clk dsi0phy_clk = { |
| .ops = &dsiphy_clk_ops, |
| .parent = &div6_clks[DIV6_DSI0P], /* late install */ |
| .mapping = &dsi0phy_clk_mapping, |
| }; |
| |
| static struct clk dsi1phy_clk = { |
| .ops = &dsiphy_clk_ops, |
| .parent = &div6_clks[DIV6_DSI1P], /* late install */ |
| .mapping = &dsi1phy_clk_mapping, |
| }; |
| |
| static struct clk *late_main_clks[] = { |
| &dsi0phy_clk, |
| &dsi1phy_clk, |
| &twd_clk, |
| }; |
| |
| enum { MSTP001, |
| MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, MSTP118, MSTP116, MSTP112, MSTP100, |
| MSTP219, MSTP218, MSTP217, |
| MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200, |
| MSTP331, MSTP329, MSTP328, MSTP325, MSTP323, MSTP322, |
| MSTP314, MSTP313, MSTP312, MSTP311, |
| MSTP304, MSTP303, MSTP302, MSTP301, MSTP300, |
| MSTP411, MSTP410, MSTP403, |
| MSTP_NR }; |
| |
| #define MSTP(_parent, _reg, _bit, _flags) \ |
| SH_CLK_MSTP32(_parent, _reg, _bit, _flags) |
| |
| static struct clk mstp_clks[MSTP_NR] = { |
| [MSTP001] = MSTP(&div4_clks[DIV4_HP], SMSTPCR0, 1, 0), /* IIC2 */ |
| [MSTP129] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 29, 0), /* CEU1 */ |
| [MSTP128] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 28, 0), /* CSI2-RX1 */ |
| [MSTP127] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 27, 0), /* CEU0 */ |
| [MSTP126] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 26, 0), /* CSI2-RX0 */ |
| [MSTP125] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 25, 0), /* TMU0 */ |
| [MSTP118] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 18, 0), /* DSITX0 */ |
| [MSTP116] = MSTP(&div4_clks[DIV4_HP], SMSTPCR1, 16, 0), /* IIC0 */ |
| [MSTP112] = MSTP(&div4_clks[DIV4_ZG], SMSTPCR1, 12, 0), /* SGX */ |
| [MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */ |
| [MSTP219] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 19, 0), /* SCIFA7 */ |
| [MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* SY-DMAC */ |
| [MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* MP-DMAC */ |
| [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 */ |
| [MSTP328] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 28, 0), /*FSI*/ |
| [MSTP325] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 25, 0), /* IrDA */ |
| [MSTP323] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 23, 0), /* IIC1 */ |
| [MSTP322] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 22, 0), /* USB */ |
| [MSTP314] = MSTP(&div6_clks[DIV6_SDHI0], SMSTPCR3, 14, 0), /* SDHI0 */ |
| [MSTP313] = MSTP(&div6_clks[DIV6_SDHI1], SMSTPCR3, 13, 0), /* SDHI1 */ |
| [MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMCIF0 */ |
| [MSTP311] = MSTP(&div6_clks[DIV6_SDHI2], SMSTPCR3, 11, 0), /* SDHI2 */ |
| [MSTP304] = MSTP(&main_div2_clk, SMSTPCR3, 4, 0), /* TPU0 */ |
| [MSTP303] = MSTP(&main_div2_clk, SMSTPCR3, 3, 0), /* TPU1 */ |
| [MSTP302] = MSTP(&main_div2_clk, SMSTPCR3, 2, 0), /* TPU2 */ |
| [MSTP301] = MSTP(&main_div2_clk, SMSTPCR3, 1, 0), /* TPU3 */ |
| [MSTP300] = MSTP(&main_div2_clk, SMSTPCR3, 0, 0), /* TPU4 */ |
| [MSTP411] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 11, 0), /* IIC3 */ |
| [MSTP410] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 10, 0), /* IIC4 */ |
| [MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */ |
| }; |
| |
| /* The lookups structure below includes duplicate entries for some clocks |
| * with alternate names. |
| * - The traditional name used when a device is initialised with platform data |
| * - The name used when a device is initialised using device tree |
| * The longer-term aim is to remove these duplicates, and indeed the |
| * lookups table entirely, by describing clocks using device tree. |
| */ |
| static struct clk_lookup lookups[] = { |
| /* main clocks */ |
| CLKDEV_CON_ID("r_clk", &r_clk), |
| CLKDEV_DEV_ID("smp_twd", &twd_clk), /* smp_twd */ |
| |
| /* DIV4 clocks */ |
| CLKDEV_DEV_ID("cpu0", &div4_clks[DIV4_Z]), |
| |
| /* 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("sdhi0_clk", &div6_clks[DIV6_SDHI0]), |
| CLKDEV_CON_ID("sdhi1_clk", &div6_clks[DIV6_SDHI1]), |
| CLKDEV_CON_ID("sdhi2_clk", &div6_clks[DIV6_SDHI2]), |
| |
| /* MSTP32 clocks */ |
| CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* I2C2 */ |
| CLKDEV_DEV_ID("e6824000.i2c", &mstp_clks[MSTP001]), /* I2C2 */ |
| CLKDEV_DEV_ID("sh_mobile_ceu.1", &mstp_clks[MSTP129]), /* CEU1 */ |
| CLKDEV_DEV_ID("sh-mobile-csi2.1", &mstp_clks[MSTP128]), /* CSI2-RX1 */ |
| CLKDEV_DEV_ID("sh_mobile_ceu.0", &mstp_clks[MSTP127]), /* CEU0 */ |
| CLKDEV_DEV_ID("sh-mobile-csi2.0", &mstp_clks[MSTP126]), /* CSI2-RX0 */ |
| CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP125]), /* TMU00 */ |
| CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP125]), /* TMU01 */ |
| CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX */ |
| CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* I2C0 */ |
| CLKDEV_DEV_ID("e6820000.i2c", &mstp_clks[MSTP116]), /* I2C0 */ |
| CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]), /* LCDC0 */ |
| CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP219]), /* SCIFA7 */ |
| CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* SY-DMAC */ |
| CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* MP-DMAC */ |
| CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */ |
| CLKDEV_DEV_ID("sh-sci.8", &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_fsi2", &mstp_clks[MSTP328]), /* FSI */ |
| CLKDEV_DEV_ID("sh_irda.0", &mstp_clks[MSTP325]), /* IrDA */ |
| CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* I2C1 */ |
| CLKDEV_DEV_ID("e6822000.i2c", &mstp_clks[MSTP323]), /* I2C1 */ |
| CLKDEV_DEV_ID("renesas_usbhs", &mstp_clks[MSTP322]), /* USB */ |
| CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */ |
| CLKDEV_DEV_ID("ee100000.sdhi", &mstp_clks[MSTP314]), /* SDHI0 */ |
| CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */ |
| CLKDEV_DEV_ID("ee120000.sdhi", &mstp_clks[MSTP313]), /* SDHI1 */ |
| CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */ |
| CLKDEV_DEV_ID("e6bd0000.mmcif", &mstp_clks[MSTP312]), /* MMCIF0 */ |
| CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP311]), /* SDHI2 */ |
| CLKDEV_DEV_ID("ee140000.sdhi", &mstp_clks[MSTP311]), /* SDHI2 */ |
| CLKDEV_DEV_ID("renesas-tpu-pwm.0", &mstp_clks[MSTP304]), /* TPU0 */ |
| CLKDEV_DEV_ID("renesas-tpu-pwm.1", &mstp_clks[MSTP303]), /* TPU1 */ |
| CLKDEV_DEV_ID("renesas-tpu-pwm.2", &mstp_clks[MSTP302]), /* TPU2 */ |
| CLKDEV_DEV_ID("renesas-tpu-pwm.3", &mstp_clks[MSTP301]), /* TPU3 */ |
| CLKDEV_DEV_ID("renesas-tpu-pwm.4", &mstp_clks[MSTP300]), /* TPU4 */ |
| CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* I2C3 */ |
| CLKDEV_DEV_ID("e6826000.i2c", &mstp_clks[MSTP411]), /* I2C3 */ |
| CLKDEV_DEV_ID("i2c-sh_mobile.4", &mstp_clks[MSTP410]), /* I2C4 */ |
| CLKDEV_DEV_ID("e6828000.i2c", &mstp_clks[MSTP410]), /* I2C4 */ |
| CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */ |
| |
| /* ICK */ |
| CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSIT]), |
| CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSIT]), |
| CLKDEV_ICK_ID("dsip_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSI0P]), |
| CLKDEV_ICK_ID("dsip_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSI1P]), |
| CLKDEV_ICK_ID("dsiphy_clk", "sh-mipi-dsi.0", &dsi0phy_clk), |
| CLKDEV_ICK_ID("dsiphy_clk", "sh-mipi-dsi.1", &dsi1phy_clk), |
| }; |
| |
| void __init sh73a0_clock_init(void) |
| { |
| int k, ret = 0; |
| |
| /* Set SDHI clocks to a known state */ |
| __raw_writel(0x108, SD0CKCR); |
| __raw_writel(0x108, SD1CKCR); |
| __raw_writel(0x108, SD2CKCR); |
| |
| /* detect main clock parent */ |
| switch ((__raw_readl(CKSCR) >> 28) & 0x03) { |
| case 0: |
| main_clk.parent = &sh73a0_extal1_clk; |
| break; |
| case 1: |
| main_clk.parent = &extal1_div2_clk; |
| break; |
| case 2: |
| main_clk.parent = &sh73a0_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) |
| div4_clk_extend(); |
| } |
| |
| if (!ret) |
| ret = sh_clk_div6_reparent_register(div6_clks, DIV6_NR); |
| |
| if (!ret) |
| ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); |
| |
| for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++) |
| ret = clk_register(late_main_clks[k]); |
| |
| clkdev_add_table(lookups, ARRAY_SIZE(lookups)); |
| |
| if (!ret) |
| shmobile_clk_init(); |
| else |
| panic("failed to setup sh73a0 clocks\n"); |
| } |