![Bui Duc Phuc](/assets/img/avatar_default.png)
This patch adds CMT module clocks for r8a7796 SoC. Signed-off-by: Bui Duc Phuc <bd-phuc@jinso.co.jp> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
224 lines
7.5 KiB
C
224 lines
7.5 KiB
C
/*
|
|
* r8a7796 Clock Pulse Generator / Module Standby and Software Reset
|
|
*
|
|
* Copyright (C) 2016 Glider bvba
|
|
*
|
|
* Based on r8a7795-cpg-mssr.c
|
|
*
|
|
* Copyright (C) 2015 Glider bvba
|
|
* Copyright (C) 2015 Renesas Electronics Corp.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
|
|
#include <dt-bindings/clock/r8a7796-cpg-mssr.h>
|
|
|
|
#include "renesas-cpg-mssr.h"
|
|
#include "rcar-gen3-cpg.h"
|
|
|
|
enum clk_ids {
|
|
/* Core Clock Outputs exported to DT */
|
|
LAST_DT_CORE_CLK = R8A7796_CLK_OSC,
|
|
|
|
/* External Input Clocks */
|
|
CLK_EXTAL,
|
|
CLK_EXTALR,
|
|
|
|
/* Internal Core Clocks */
|
|
CLK_MAIN,
|
|
CLK_PLL0,
|
|
CLK_PLL1,
|
|
CLK_PLL2,
|
|
CLK_PLL3,
|
|
CLK_PLL4,
|
|
CLK_PLL1_DIV2,
|
|
CLK_PLL1_DIV4,
|
|
CLK_S0,
|
|
CLK_S1,
|
|
CLK_S2,
|
|
CLK_S3,
|
|
CLK_SDSRC,
|
|
CLK_SSPSRC,
|
|
CLK_RINT,
|
|
|
|
/* Module Clocks */
|
|
MOD_CLK_BASE
|
|
};
|
|
|
|
static const struct cpg_core_clk r8a7796_core_clks[] __initconst = {
|
|
/* External Clock Inputs */
|
|
DEF_INPUT("extal", CLK_EXTAL),
|
|
DEF_INPUT("extalr", CLK_EXTALR),
|
|
|
|
/* Internal Core Clocks */
|
|
DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
|
|
DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN),
|
|
DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
|
|
DEF_BASE(".pll2", CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN),
|
|
DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
|
|
DEF_BASE(".pll4", CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN),
|
|
|
|
DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),
|
|
DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1),
|
|
DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1),
|
|
DEF_FIXED(".s1", CLK_S1, CLK_PLL1_DIV2, 3, 1),
|
|
DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 4, 1),
|
|
DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 6, 1),
|
|
DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1),
|
|
|
|
/* Core Clock Outputs */
|
|
DEF_FIXED("ztr", R8A7796_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
|
|
DEF_FIXED("ztrd2", R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
|
|
DEF_FIXED("zt", R8A7796_CLK_ZT, CLK_PLL1_DIV2, 4, 1),
|
|
DEF_FIXED("zx", R8A7796_CLK_ZX, CLK_PLL1_DIV2, 2, 1),
|
|
DEF_FIXED("s0d1", R8A7796_CLK_S0D1, CLK_S0, 1, 1),
|
|
DEF_FIXED("s0d2", R8A7796_CLK_S0D2, CLK_S0, 2, 1),
|
|
DEF_FIXED("s0d3", R8A7796_CLK_S0D3, CLK_S0, 3, 1),
|
|
DEF_FIXED("s0d4", R8A7796_CLK_S0D4, CLK_S0, 4, 1),
|
|
DEF_FIXED("s0d6", R8A7796_CLK_S0D6, CLK_S0, 6, 1),
|
|
DEF_FIXED("s0d8", R8A7796_CLK_S0D8, CLK_S0, 8, 1),
|
|
DEF_FIXED("s0d12", R8A7796_CLK_S0D12, CLK_S0, 12, 1),
|
|
DEF_FIXED("s1d1", R8A7796_CLK_S1D1, CLK_S1, 1, 1),
|
|
DEF_FIXED("s1d2", R8A7796_CLK_S1D2, CLK_S1, 2, 1),
|
|
DEF_FIXED("s1d4", R8A7796_CLK_S1D4, CLK_S1, 4, 1),
|
|
DEF_FIXED("s2d1", R8A7796_CLK_S2D1, CLK_S2, 1, 1),
|
|
DEF_FIXED("s2d2", R8A7796_CLK_S2D2, CLK_S2, 2, 1),
|
|
DEF_FIXED("s2d4", R8A7796_CLK_S2D4, CLK_S2, 4, 1),
|
|
DEF_FIXED("s3d1", R8A7796_CLK_S3D1, CLK_S3, 1, 1),
|
|
DEF_FIXED("s3d2", R8A7796_CLK_S3D2, CLK_S3, 2, 1),
|
|
DEF_FIXED("s3d4", R8A7796_CLK_S3D4, CLK_S3, 4, 1),
|
|
|
|
DEF_GEN3_SD("sd0", R8A7796_CLK_SD0, CLK_SDSRC, 0x0074),
|
|
DEF_GEN3_SD("sd1", R8A7796_CLK_SD1, CLK_SDSRC, 0x0078),
|
|
DEF_GEN3_SD("sd2", R8A7796_CLK_SD2, CLK_SDSRC, 0x0268),
|
|
DEF_GEN3_SD("sd3", R8A7796_CLK_SD3, CLK_SDSRC, 0x026c),
|
|
|
|
DEF_FIXED("cl", R8A7796_CLK_CL, CLK_PLL1_DIV2, 48, 1),
|
|
DEF_FIXED("cp", R8A7796_CLK_CP, CLK_EXTAL, 2, 1),
|
|
|
|
DEF_DIV6_RO("osc", R8A7796_CLK_OSC, CLK_EXTAL, CPG_RCKCR, 8),
|
|
DEF_DIV6_RO("r_int", CLK_RINT, CLK_EXTAL, CPG_RCKCR, 32),
|
|
|
|
DEF_BASE("r", R8A7796_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT),
|
|
};
|
|
|
|
static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
|
|
DEF_MOD("cmt3", 300, R8A7796_CLK_R),
|
|
DEF_MOD("cmt2", 301, R8A7796_CLK_R),
|
|
DEF_MOD("cmt1", 302, R8A7796_CLK_R),
|
|
DEF_MOD("cmt0", 303, R8A7796_CLK_R),
|
|
DEF_MOD("scif2", 310, R8A7796_CLK_S3D4),
|
|
DEF_MOD("sdif3", 311, R8A7796_CLK_SD3),
|
|
DEF_MOD("sdif2", 312, R8A7796_CLK_SD2),
|
|
DEF_MOD("sdif1", 313, R8A7796_CLK_SD1),
|
|
DEF_MOD("sdif0", 314, R8A7796_CLK_SD0),
|
|
DEF_MOD("rwdt0", 402, R8A7796_CLK_R),
|
|
DEF_MOD("intc-ap", 408, R8A7796_CLK_S3D1),
|
|
DEF_MOD("thermal", 522, R8A7796_CLK_CP),
|
|
DEF_MOD("etheravb", 812, R8A7796_CLK_S0D6),
|
|
DEF_MOD("gpio7", 905, R8A7796_CLK_S3D4),
|
|
DEF_MOD("gpio6", 906, R8A7796_CLK_S3D4),
|
|
DEF_MOD("gpio5", 907, R8A7796_CLK_S3D4),
|
|
DEF_MOD("gpio4", 908, R8A7796_CLK_S3D4),
|
|
DEF_MOD("gpio3", 909, R8A7796_CLK_S3D4),
|
|
DEF_MOD("gpio2", 910, R8A7796_CLK_S3D4),
|
|
DEF_MOD("gpio1", 911, R8A7796_CLK_S3D4),
|
|
DEF_MOD("gpio0", 912, R8A7796_CLK_S3D4),
|
|
};
|
|
|
|
static const unsigned int r8a7796_crit_mod_clks[] __initconst = {
|
|
MOD_CLK_ID(408), /* INTC-AP (GIC) */
|
|
};
|
|
|
|
|
|
/*
|
|
* CPG Clock Data
|
|
*/
|
|
|
|
/*
|
|
* MD EXTAL PLL0 PLL1 PLL2 PLL3 PLL4
|
|
* 14 13 19 17 (MHz)
|
|
*-------------------------------------------------------------------
|
|
* 0 0 0 0 16.66 x 1 x180 x192 x144 x192 x144
|
|
* 0 0 0 1 16.66 x 1 x180 x192 x144 x128 x144
|
|
* 0 0 1 0 Prohibited setting
|
|
* 0 0 1 1 16.66 x 1 x180 x192 x144 x192 x144
|
|
* 0 1 0 0 20 x 1 x150 x160 x120 x160 x120
|
|
* 0 1 0 1 20 x 1 x150 x160 x120 x106 x120
|
|
* 0 1 1 0 Prohibited setting
|
|
* 0 1 1 1 20 x 1 x150 x160 x120 x160 x120
|
|
* 1 0 0 0 25 x 1 x120 x128 x96 x128 x96
|
|
* 1 0 0 1 25 x 1 x120 x128 x96 x84 x96
|
|
* 1 0 1 0 Prohibited setting
|
|
* 1 0 1 1 25 x 1 x120 x128 x96 x128 x96
|
|
* 1 1 0 0 33.33 / 2 x180 x192 x144 x192 x144
|
|
* 1 1 0 1 33.33 / 2 x180 x192 x144 x128 x144
|
|
* 1 1 1 0 Prohibited setting
|
|
* 1 1 1 1 33.33 / 2 x180 x192 x144 x192 x144
|
|
*/
|
|
#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 11) | \
|
|
(((md) & BIT(13)) >> 11) | \
|
|
(((md) & BIT(19)) >> 18) | \
|
|
(((md) & BIT(17)) >> 17))
|
|
|
|
static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
|
|
/* EXTAL div PLL1 mult PLL3 mult */
|
|
{ 1, 192, 192, },
|
|
{ 1, 192, 128, },
|
|
{ 0, /* Prohibited setting */ },
|
|
{ 1, 192, 192, },
|
|
{ 1, 160, 160, },
|
|
{ 1, 160, 106, },
|
|
{ 0, /* Prohibited setting */ },
|
|
{ 1, 160, 160, },
|
|
{ 1, 128, 128, },
|
|
{ 1, 128, 84, },
|
|
{ 0, /* Prohibited setting */ },
|
|
{ 1, 128, 128, },
|
|
{ 2, 192, 192, },
|
|
{ 2, 192, 128, },
|
|
{ 0, /* Prohibited setting */ },
|
|
{ 2, 192, 192, },
|
|
};
|
|
|
|
static int __init r8a7796_cpg_mssr_init(struct device *dev)
|
|
{
|
|
const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
|
|
u32 cpg_mode = rcar_gen3_read_mode_pins();
|
|
|
|
cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
|
|
if (!cpg_pll_config->extal_div) {
|
|
dev_err(dev, "Prohibited setting (cpg_mode=0x%x)\n", cpg_mode);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR);
|
|
}
|
|
|
|
const struct cpg_mssr_info r8a7796_cpg_mssr_info __initconst = {
|
|
/* Core Clocks */
|
|
.core_clks = r8a7796_core_clks,
|
|
.num_core_clks = ARRAY_SIZE(r8a7796_core_clks),
|
|
.last_dt_core_clk = LAST_DT_CORE_CLK,
|
|
.num_total_core_clks = MOD_CLK_BASE,
|
|
|
|
/* Module Clocks */
|
|
.mod_clks = r8a7796_mod_clks,
|
|
.num_mod_clks = ARRAY_SIZE(r8a7796_mod_clks),
|
|
.num_hw_mod_clks = 12 * 32,
|
|
|
|
/* Critical Module Clocks */
|
|
.crit_mod_clks = r8a7796_crit_mod_clks,
|
|
.num_crit_mod_clks = ARRAY_SIZE(r8a7796_crit_mod_clks),
|
|
|
|
/* Callbacks */
|
|
.init = r8a7796_cpg_mssr_init,
|
|
.cpg_clk_register = rcar_gen3_cpg_clk_register,
|
|
};
|