--- /dev/null
+/*
+ * 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.
+ */
+#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 "clock.h"
+#include "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,
+ MSTP508,
+ 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 */
+ [MSTP508] = MSTP(&div4_clks[DIV4_HP], SMSTPCR5, 8, 0), /* INTCA0 */
+};
+
+/* 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-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("e6cd0000.serial", &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("e6cb0000.serial", &mstp_clks[MSTP207]), /* SCIFA5 */
+ CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]), /* SCIFB */
+ CLKDEV_DEV_ID("e6c3000.serial", &mstp_clks[MSTP206]), /* SCIFB */
+ CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */
+ CLKDEV_DEV_ID("e6c40000.serial", &mstp_clks[MSTP204]), /* SCIFA0 */
+ CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), /* SCIFA1 */
+ CLKDEV_DEV_ID("e6c50000.serial", &mstp_clks[MSTP203]), /* SCIFA1 */
+ CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]), /* SCIFA2 */
+ CLKDEV_DEV_ID("e6c60000.serial", &mstp_clks[MSTP202]), /* SCIFA2 */
+ CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]), /* SCIFA3 */
+ CLKDEV_DEV_ID("e6c70000.serial", &mstp_clks[MSTP201]), /* SCIFA3 */
+ CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), /* SCIFA4 */
+ CLKDEV_DEV_ID("e6c80000.serial", &mstp_clks[MSTP200]), /* SCIFA4 */
+ CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP331]), /* SCIFA6 */
+ CLKDEV_DEV_ID("e6cc0000.serial", &mstp_clks[MSTP331]), /* SCIFA6 */
+ CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]), /* FSI */
+ CLKDEV_DEV_ID("ec230000.sound", &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.sd", &mstp_clks[MSTP314]), /* SDHI0 */
+ CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
+ CLKDEV_DEV_ID("ee120000.sd", &mstp_clks[MSTP313]), /* SDHI1 */
+ CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */
+ CLKDEV_DEV_ID("e6bd0000.mmc", &mstp_clks[MSTP312]), /* MMCIF0 */
+ CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP311]), /* SDHI2 */
+ CLKDEV_DEV_ID("ee140000.sd", &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 */
+ CLKDEV_DEV_ID("renesas_intc_irqpin.0", &mstp_clks[MSTP508]), /* INTCA0 */
+ CLKDEV_DEV_ID("e6900000.irqpin", &mstp_clks[MSTP508]), /* INTCA0 */
+ CLKDEV_DEV_ID("renesas_intc_irqpin.1", &mstp_clks[MSTP508]), /* INTCA0 */
+ CLKDEV_DEV_ID("e6900004.irqpin", &mstp_clks[MSTP508]), /* INTCA0 */
+ CLKDEV_DEV_ID("renesas_intc_irqpin.2", &mstp_clks[MSTP508]), /* INTCA0 */
+ CLKDEV_DEV_ID("e6900008.irqpin", &mstp_clks[MSTP508]), /* INTCA0 */
+ CLKDEV_DEV_ID("renesas_intc_irqpin.3", &mstp_clks[MSTP508]), /* INTCA0 */
+ CLKDEV_DEV_ID("e690000c.irqpin", &mstp_clks[MSTP508]), /* INTCA0 */
+
+ /* 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),
+ CLKDEV_ICK_ID("fck", "sh-cmt-48.1", &mstp_clks[MSTP329]), /* CMT1 */
+ CLKDEV_ICK_ID("fck", "e6138000.timer", &mstp_clks[MSTP329]), /* CMT1 */
+ CLKDEV_ICK_ID("fck", "sh-tmu.0", &mstp_clks[MSTP125]), /* TMU0 */
+};
+
+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");
+}
Code Review / kvmfornfv.git / blobdiff