mirror of https://gitee.com/openkylin/linux.git
733 lines
22 KiB
C
733 lines
22 KiB
C
/*
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* sh73a0 clock framework support
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*
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* Copyright (C) 2010 Magnus Damm
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include <linux/sh_clk.h>
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#include <linux/clkdev.h>
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#include <asm/processor.h>
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#include <mach/clock.h>
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#include <mach/common.h>
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#define FRQCRA IOMEM(0xe6150000)
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#define FRQCRB IOMEM(0xe6150004)
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#define FRQCRD IOMEM(0xe61500e4)
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#define VCLKCR1 IOMEM(0xe6150008)
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#define VCLKCR2 IOMEM(0xe615000C)
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#define VCLKCR3 IOMEM(0xe615001C)
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#define ZBCKCR IOMEM(0xe6150010)
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#define FLCKCR IOMEM(0xe6150014)
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#define SD0CKCR IOMEM(0xe6150074)
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#define SD1CKCR IOMEM(0xe6150078)
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#define SD2CKCR IOMEM(0xe615007C)
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#define FSIACKCR IOMEM(0xe6150018)
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#define FSIBCKCR IOMEM(0xe6150090)
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#define SUBCKCR IOMEM(0xe6150080)
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#define SPUACKCR IOMEM(0xe6150084)
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#define SPUVCKCR IOMEM(0xe6150094)
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#define MSUCKCR IOMEM(0xe6150088)
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#define HSICKCR IOMEM(0xe615008C)
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#define MFCK1CR IOMEM(0xe6150098)
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#define MFCK2CR IOMEM(0xe615009C)
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#define DSITCKCR IOMEM(0xe6150060)
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#define DSI0PCKCR IOMEM(0xe6150064)
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#define DSI1PCKCR IOMEM(0xe6150068)
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#define DSI0PHYCR 0xe615006C
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#define DSI1PHYCR 0xe6150070
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#define PLLECR IOMEM(0xe61500d0)
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#define PLL0CR IOMEM(0xe61500d8)
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#define PLL1CR IOMEM(0xe6150028)
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#define PLL2CR IOMEM(0xe615002c)
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#define PLL3CR IOMEM(0xe61500dc)
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#define SMSTPCR0 IOMEM(0xe6150130)
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#define SMSTPCR1 IOMEM(0xe6150134)
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#define SMSTPCR2 IOMEM(0xe6150138)
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#define SMSTPCR3 IOMEM(0xe615013c)
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#define SMSTPCR4 IOMEM(0xe6150140)
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#define SMSTPCR5 IOMEM(0xe6150144)
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#define CKSCR IOMEM(0xe61500c0)
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/* Fixed 32 KHz root clock from EXTALR pin */
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static struct clk r_clk = {
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.rate = 32768,
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};
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/*
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* 26MHz default rate for the EXTAL1 root input clock.
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* If needed, reset this with clk_set_rate() from the platform code.
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*/
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struct clk sh73a0_extal1_clk = {
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.rate = 26000000,
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};
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/*
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* 48MHz default rate for the EXTAL2 root input clock.
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* If needed, reset this with clk_set_rate() from the platform code.
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*/
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struct clk sh73a0_extal2_clk = {
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.rate = 48000000,
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};
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static struct sh_clk_ops main_clk_ops = {
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.recalc = followparent_recalc,
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};
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/* Main clock */
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static struct clk main_clk = {
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/* .parent wll be set on sh73a0_clock_init() */
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.ops = &main_clk_ops,
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};
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/* PLL0, PLL1, PLL2, PLL3 */
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static unsigned long pll_recalc(struct clk *clk)
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{
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unsigned long mult = 1;
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if (__raw_readl(PLLECR) & (1 << clk->enable_bit)) {
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mult = (((__raw_readl(clk->enable_reg) >> 24) & 0x3f) + 1);
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/* handle CFG bit for PLL1 and PLL2 */
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switch (clk->enable_bit) {
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case 1:
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case 2:
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if (__raw_readl(clk->enable_reg) & (1 << 20))
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mult *= 2;
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}
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}
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return clk->parent->rate * mult;
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}
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static struct sh_clk_ops pll_clk_ops = {
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.recalc = pll_recalc,
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};
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static struct clk pll0_clk = {
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.ops = &pll_clk_ops,
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.flags = CLK_ENABLE_ON_INIT,
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.parent = &main_clk,
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.enable_reg = (void __iomem *)PLL0CR,
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.enable_bit = 0,
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};
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static struct clk pll1_clk = {
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.ops = &pll_clk_ops,
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.flags = CLK_ENABLE_ON_INIT,
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.parent = &main_clk,
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.enable_reg = (void __iomem *)PLL1CR,
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.enable_bit = 1,
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};
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static struct clk pll2_clk = {
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.ops = &pll_clk_ops,
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.flags = CLK_ENABLE_ON_INIT,
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.parent = &main_clk,
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.enable_reg = (void __iomem *)PLL2CR,
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.enable_bit = 2,
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};
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static struct clk pll3_clk = {
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.ops = &pll_clk_ops,
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.flags = CLK_ENABLE_ON_INIT,
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.parent = &main_clk,
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.enable_reg = (void __iomem *)PLL3CR,
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.enable_bit = 3,
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};
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/* A fixed divide block */
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SH_CLK_RATIO(div2, 1, 2);
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SH_CLK_RATIO(div7, 1, 7);
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SH_CLK_RATIO(div13, 1, 13);
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SH_FIXED_RATIO_CLK(extal1_div2_clk, sh73a0_extal1_clk, div2);
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SH_FIXED_RATIO_CLK(extal2_div2_clk, sh73a0_extal2_clk, div2);
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SH_FIXED_RATIO_CLK(main_div2_clk, main_clk, div2);
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SH_FIXED_RATIO_CLK(pll1_div2_clk, pll1_clk, div2);
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SH_FIXED_RATIO_CLK(pll1_div7_clk, pll1_clk, div7);
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SH_FIXED_RATIO_CLK(pll1_div13_clk, pll1_clk, div13);
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/* External input clock */
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struct clk sh73a0_extcki_clk = {
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};
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struct clk sh73a0_extalr_clk = {
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};
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static struct clk *main_clks[] = {
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&r_clk,
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&sh73a0_extal1_clk,
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&sh73a0_extal2_clk,
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&extal1_div2_clk,
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&extal2_div2_clk,
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&main_clk,
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&main_div2_clk,
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&pll0_clk,
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&pll1_clk,
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&pll2_clk,
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&pll3_clk,
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&pll1_div2_clk,
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&pll1_div7_clk,
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&pll1_div13_clk,
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&sh73a0_extcki_clk,
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&sh73a0_extalr_clk,
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};
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static int frqcr_kick(void)
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{
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int i;
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/* set KICK bit in FRQCRB to update hardware setting, check success */
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__raw_writel(__raw_readl(FRQCRB) | (1 << 31), FRQCRB);
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for (i = 1000; i; i--)
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if (__raw_readl(FRQCRB) & (1 << 31))
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cpu_relax();
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else
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return i;
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return -ETIMEDOUT;
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}
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static void div4_kick(struct clk *clk)
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{
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frqcr_kick();
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}
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static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
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24, 0, 36, 48, 7 };
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static struct clk_div_mult_table div4_div_mult_table = {
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.divisors = divisors,
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.nr_divisors = ARRAY_SIZE(divisors),
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};
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static struct clk_div4_table div4_table = {
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.div_mult_table = &div4_div_mult_table,
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.kick = div4_kick,
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};
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enum { DIV4_I, DIV4_ZG, DIV4_M3, DIV4_B, DIV4_M1, DIV4_M2,
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DIV4_Z, DIV4_ZX, DIV4_HP, DIV4_NR };
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#define DIV4(_reg, _bit, _mask, _flags) \
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SH_CLK_DIV4(&pll1_clk, _reg, _bit, _mask, _flags)
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static struct clk div4_clks[DIV4_NR] = {
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[DIV4_I] = DIV4(FRQCRA, 20, 0xdff, CLK_ENABLE_ON_INIT),
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/*
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* ZG clock is dividing PLL0 frequency to supply SGX. Make sure not to
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* exceed maximum frequencies of 201.5MHz for VDD_DVFS=1.175 and
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* 239.2MHz for VDD_DVFS=1.315V.
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*/
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[DIV4_ZG] = SH_CLK_DIV4(&pll0_clk, FRQCRA, 16, 0xd7f, CLK_ENABLE_ON_INIT),
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[DIV4_M3] = DIV4(FRQCRA, 12, 0x1dff, CLK_ENABLE_ON_INIT),
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[DIV4_B] = DIV4(FRQCRA, 8, 0xdff, CLK_ENABLE_ON_INIT),
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[DIV4_M1] = DIV4(FRQCRA, 4, 0x1dff, 0),
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[DIV4_M2] = DIV4(FRQCRA, 0, 0x1dff, 0),
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[DIV4_Z] = SH_CLK_DIV4(&pll0_clk, FRQCRB, 24, 0x97f, 0),
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[DIV4_ZX] = DIV4(FRQCRB, 12, 0xdff, 0),
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[DIV4_HP] = DIV4(FRQCRB, 4, 0xdff, 0),
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};
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static unsigned long twd_recalc(struct clk *clk)
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{
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return clk_get_rate(clk->parent) / 4;
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}
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static struct sh_clk_ops twd_clk_ops = {
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.recalc = twd_recalc,
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};
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static struct clk twd_clk = {
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.parent = &div4_clks[DIV4_Z],
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.ops = &twd_clk_ops,
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};
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static struct sh_clk_ops zclk_ops, kicker_ops;
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static const struct sh_clk_ops *div4_clk_ops;
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static int zclk_set_rate(struct clk *clk, unsigned long rate)
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{
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int ret;
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if (!clk->parent || !__clk_get(clk->parent))
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return -ENODEV;
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if (readl(FRQCRB) & (1 << 31))
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return -EBUSY;
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if (rate == clk_get_rate(clk->parent)) {
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/* 1:1 - switch off divider */
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__raw_writel(__raw_readl(FRQCRB) & ~(1 << 28), FRQCRB);
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/* nullify the divider to prepare for the next time */
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ret = div4_clk_ops->set_rate(clk, rate / 2);
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if (!ret)
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ret = frqcr_kick();
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if (ret > 0)
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ret = 0;
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} else {
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/* Enable the divider */
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__raw_writel(__raw_readl(FRQCRB) | (1 << 28), FRQCRB);
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ret = frqcr_kick();
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if (ret >= 0)
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/*
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* set the divider - call the DIV4 method, it will kick
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* FRQCRB too
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*/
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ret = div4_clk_ops->set_rate(clk, rate);
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if (ret < 0)
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goto esetrate;
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}
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esetrate:
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__clk_put(clk->parent);
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return ret;
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}
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static long zclk_round_rate(struct clk *clk, unsigned long rate)
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{
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unsigned long div_freq = div4_clk_ops->round_rate(clk, rate),
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parent_freq = clk_get_rate(clk->parent);
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if (rate > div_freq && abs(parent_freq - rate) < rate - div_freq)
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return parent_freq;
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return div_freq;
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}
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static unsigned long zclk_recalc(struct clk *clk)
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{
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/*
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* Must recalculate frequencies in case PLL0 has been changed, even if
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* the divisor is unused ATM!
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*/
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unsigned long div_freq = div4_clk_ops->recalc(clk);
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if (__raw_readl(FRQCRB) & (1 << 28))
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return div_freq;
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return clk_get_rate(clk->parent);
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}
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static int kicker_set_rate(struct clk *clk, unsigned long rate)
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{
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if (__raw_readl(FRQCRB) & (1 << 31))
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return -EBUSY;
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return div4_clk_ops->set_rate(clk, rate);
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}
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static void div4_clk_extend(void)
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{
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int i;
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div4_clk_ops = div4_clks[0].ops;
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/* Add a kicker-busy check before changing the rate */
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kicker_ops = *div4_clk_ops;
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/* We extend the DIV4 clock with a 1:1 pass-through case */
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zclk_ops = *div4_clk_ops;
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kicker_ops.set_rate = kicker_set_rate;
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zclk_ops.set_rate = zclk_set_rate;
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zclk_ops.round_rate = zclk_round_rate;
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zclk_ops.recalc = zclk_recalc;
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for (i = 0; i < DIV4_NR; i++)
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div4_clks[i].ops = i == DIV4_Z ? &zclk_ops : &kicker_ops;
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}
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enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1,
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DIV6_FLCTL, DIV6_SDHI0, DIV6_SDHI1, DIV6_SDHI2,
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DIV6_FSIA, DIV6_FSIB, DIV6_SUB,
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DIV6_SPUA, DIV6_SPUV, DIV6_MSU,
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DIV6_HSI, DIV6_MFG1, DIV6_MFG2,
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DIV6_DSIT, DIV6_DSI0P, DIV6_DSI1P,
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DIV6_NR };
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static struct clk *vck_parent[8] = {
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[0] = &pll1_div2_clk,
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[1] = &pll2_clk,
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[2] = &sh73a0_extcki_clk,
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[3] = &sh73a0_extal2_clk,
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[4] = &main_div2_clk,
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[5] = &sh73a0_extalr_clk,
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[6] = &main_clk,
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};
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static struct clk *pll_parent[4] = {
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[0] = &pll1_div2_clk,
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[1] = &pll2_clk,
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[2] = &pll1_div13_clk,
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};
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static struct clk *hsi_parent[4] = {
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[0] = &pll1_div2_clk,
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[1] = &pll2_clk,
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[2] = &pll1_div7_clk,
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};
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static struct clk *pll_extal2_parent[] = {
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[0] = &pll1_div2_clk,
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[1] = &pll2_clk,
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[2] = &sh73a0_extal2_clk,
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[3] = &sh73a0_extal2_clk,
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};
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static struct clk *dsi_parent[8] = {
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[0] = &pll1_div2_clk,
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[1] = &pll2_clk,
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[2] = &main_clk,
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[3] = &sh73a0_extal2_clk,
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[4] = &sh73a0_extcki_clk,
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};
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static struct clk div6_clks[DIV6_NR] = {
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[DIV6_VCK1] = SH_CLK_DIV6_EXT(VCLKCR1, 0,
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vck_parent, ARRAY_SIZE(vck_parent), 12, 3),
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[DIV6_VCK2] = SH_CLK_DIV6_EXT(VCLKCR2, 0,
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vck_parent, ARRAY_SIZE(vck_parent), 12, 3),
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[DIV6_VCK3] = SH_CLK_DIV6_EXT(VCLKCR3, 0,
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vck_parent, ARRAY_SIZE(vck_parent), 12, 3),
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[DIV6_ZB1] = SH_CLK_DIV6_EXT(ZBCKCR, CLK_ENABLE_ON_INIT,
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pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
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[DIV6_FLCTL] = SH_CLK_DIV6_EXT(FLCKCR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
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[DIV6_SDHI0] = SH_CLK_DIV6_EXT(SD0CKCR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 6, 2),
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[DIV6_SDHI1] = SH_CLK_DIV6_EXT(SD1CKCR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 6, 2),
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[DIV6_SDHI2] = SH_CLK_DIV6_EXT(SD2CKCR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 6, 2),
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[DIV6_FSIA] = SH_CLK_DIV6_EXT(FSIACKCR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 6, 1),
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[DIV6_FSIB] = SH_CLK_DIV6_EXT(FSIBCKCR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 6, 1),
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[DIV6_SUB] = SH_CLK_DIV6_EXT(SUBCKCR, 0,
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pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2),
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[DIV6_SPUA] = SH_CLK_DIV6_EXT(SPUACKCR, 0,
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pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2),
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[DIV6_SPUV] = SH_CLK_DIV6_EXT(SPUVCKCR, 0,
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pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2),
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[DIV6_MSU] = SH_CLK_DIV6_EXT(MSUCKCR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
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[DIV6_HSI] = SH_CLK_DIV6_EXT(HSICKCR, 0,
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hsi_parent, ARRAY_SIZE(hsi_parent), 6, 2),
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[DIV6_MFG1] = SH_CLK_DIV6_EXT(MFCK1CR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
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[DIV6_MFG2] = SH_CLK_DIV6_EXT(MFCK2CR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
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[DIV6_DSIT] = SH_CLK_DIV6_EXT(DSITCKCR, 0,
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pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
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[DIV6_DSI0P] = SH_CLK_DIV6_EXT(DSI0PCKCR, 0,
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dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3),
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[DIV6_DSI1P] = SH_CLK_DIV6_EXT(DSI1PCKCR, 0,
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dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3),
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};
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|
|
/* 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,
|
|
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 */
|
|
[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("cpufreq-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]),
|
|
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),
|
|
|
|
/* 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("leds-renesas-tpu.12", &mstp_clks[MSTP303]), /* TPU1 */
|
|
CLKDEV_DEV_ID("leds-renesas-tpu.21", &mstp_clks[MSTP302]), /* TPU2 */
|
|
CLKDEV_DEV_ID("leds-renesas-tpu.30", &mstp_clks[MSTP301]), /* TPU3 */
|
|
CLKDEV_DEV_ID("leds-renesas-tpu.41", &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 */
|
|
};
|
|
|
|
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");
|
|
}
|