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u-boot/drivers/clk/renesas/r8a77970-cpg-mssr.c
Simon Glass 41575d8e4c dm: treewide: Rename auto_alloc_size members to be shorter 
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.

Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13 08:00:25 -07:00

233 lines
7.5 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* Renesas R8A77970 CPG MSSR driver
*
* Copyright (C) 2017-2018 Marek Vasut <marek.vasut@gmail.com>
*
* Based on the following driver from Linux kernel:
* r8a7796 Clock Pulse Generator / Module Standby and Software Reset
*
* Copyright (C) 2016 Glider bvba
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <linux/bitops.h>
#include <dt-bindings/clock/r8a77970-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 = R8A77970_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_PLL0D2,
CLK_PLL0D3,
CLK_PLL0D5,
CLK_PLL1D2,
CLK_PE,
CLK_S0,
CLK_S1,
CLK_S2,
CLK_S3,
CLK_SDSRC,
CLK_RPCSRC,
CLK_SSPSRC,
CLK_RINT,
/* Module Clocks */
MOD_CLK_BASE
};
static const struct cpg_core_clk r8a77970_core_clks[] = {
/* 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(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, 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(".s1", CLK_S1, CLK_PLL1_DIV2, 4, 1),
DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 6, 1),
DEF_FIXED(".rpcsrc", CLK_RPCSRC, CLK_PLL1, 2, 1),
/* Core Clock Outputs */
DEF_BASE("z2", R8A77970_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL1_DIV4),
DEF_FIXED("ztr", R8A77970_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
DEF_FIXED("ztrd2", R8A77970_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
DEF_FIXED("zt", R8A77970_CLK_ZT, CLK_PLL1_DIV2, 4, 1),
DEF_FIXED("zx", R8A77970_CLK_ZX, CLK_PLL1_DIV2, 3, 1),
DEF_FIXED("s1d1", R8A77970_CLK_S1D1, CLK_S1, 1, 1),
DEF_FIXED("s1d2", R8A77970_CLK_S1D2, CLK_S1, 2, 1),
DEF_FIXED("s1d4", R8A77970_CLK_S1D4, CLK_S1, 4, 1),
DEF_FIXED("s2d1", R8A77970_CLK_S2D1, CLK_S2, 1, 1),
DEF_FIXED("s2d2", R8A77970_CLK_S2D2, CLK_S2, 2, 1),
DEF_FIXED("s2d4", R8A77970_CLK_S2D4, CLK_S2, 4, 1),
DEF_GEN3_SD("sd0", R8A77970_CLK_SD0, CLK_PLL1_DIV4, 0x0074),
DEF_GEN3_RPC("rpc", R8A77970_CLK_RPC, CLK_RPCSRC, 0x238),
DEF_FIXED("cl", R8A77970_CLK_CL, CLK_PLL1_DIV2, 48, 1),
DEF_FIXED("cp", R8A77970_CLK_CP, CLK_EXTAL, 2, 1),
/* NOTE: HDMI, CSI, CAN etc. clock are missing */
DEF_BASE("r", R8A77970_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT),
};
static const struct mssr_mod_clk r8a77970_mod_clks[] = {
DEF_MOD("ivcp1e", 127, R8A77970_CLK_S2D1),
DEF_MOD("scif4", 203, R8A77970_CLK_S2D4), /* @@ H3=S3D4 */
DEF_MOD("scif3", 204, R8A77970_CLK_S2D4), /* @@ H3=S3D4 */
DEF_MOD("scif1", 206, R8A77970_CLK_S2D4), /* @@ H3=S3D4 */
DEF_MOD("scif0", 207, R8A77970_CLK_S2D4), /* @@ H3=S3D4 */
DEF_MOD("msiof3", 208, R8A77970_CLK_MSO),
DEF_MOD("msiof2", 209, R8A77970_CLK_MSO),
DEF_MOD("msiof1", 210, R8A77970_CLK_MSO),
DEF_MOD("msiof0", 211, R8A77970_CLK_MSO),
DEF_MOD("mfis", 213, R8A77970_CLK_S2D2), /* @@ H3=S3D2 */
DEF_MOD("sys-dmac2", 217, R8A77970_CLK_S2D1), /* @@ H3=S3D1 */
DEF_MOD("sys-dmac1", 218, R8A77970_CLK_S2D1), /* @@ H3=S3D1 */
DEF_MOD("sdif", 314, R8A77970_CLK_SD0),
DEF_MOD("rwdt0", 402, R8A77970_CLK_R),
DEF_MOD("intc-ex", 407, R8A77970_CLK_CP),
DEF_MOD("intc-ap", 408, R8A77970_CLK_S2D1), /* @@ H3=S3D1 */
DEF_MOD("hscif3", 517, R8A77970_CLK_S2D1), /* @@ H3=S3D1 */
DEF_MOD("hscif2", 518, R8A77970_CLK_S2D1), /* @@ H3=S3D1 */
DEF_MOD("hscif1", 519, R8A77970_CLK_S2D1), /* @@ H3=S3D1 */
DEF_MOD("hscif0", 520, R8A77970_CLK_S2D1), /* @@ H3=S3D1 */
DEF_MOD("thermal", 522, R8A77970_CLK_CP),
DEF_MOD("pwm", 523, R8A77970_CLK_S2D4),
DEF_MOD("fcpvd0", 603, R8A77970_CLK_S2D1),
DEF_MOD("vspd0", 623, R8A77970_CLK_S2D1),
DEF_MOD("csi40", 716, R8A77970_CLK_CSI0),
DEF_MOD("du0", 724, R8A77970_CLK_S2D1),
DEF_MOD("lvds", 727, R8A77970_CLK_S2D1),
DEF_MOD("vin3", 808, R8A77970_CLK_S2D1),
DEF_MOD("vin2", 809, R8A77970_CLK_S2D1),
DEF_MOD("vin1", 810, R8A77970_CLK_S2D1),
DEF_MOD("vin0", 811, R8A77970_CLK_S2D1),
DEF_MOD("etheravb", 812, R8A77970_CLK_S2D2),
DEF_MOD("isp", 817, R8A77970_CLK_S2D1),
DEF_MOD("gpio5", 907, R8A77970_CLK_CP),
DEF_MOD("gpio4", 908, R8A77970_CLK_CP),
DEF_MOD("gpio3", 909, R8A77970_CLK_CP),
DEF_MOD("gpio2", 910, R8A77970_CLK_CP),
DEF_MOD("gpio1", 911, R8A77970_CLK_CP),
DEF_MOD("gpio0", 912, R8A77970_CLK_CP),
DEF_MOD("can-fd", 914, R8A77970_CLK_S2D2),
DEF_MOD("rpc", 917, R8A77970_CLK_RPC),
DEF_MOD("i2c4", 927, R8A77970_CLK_S2D2),
DEF_MOD("i2c3", 928, R8A77970_CLK_S2D2),
DEF_MOD("i2c2", 929, R8A77970_CLK_S2D2),
DEF_MOD("i2c1", 930, R8A77970_CLK_S2D2),
DEF_MOD("i2c0", 931, R8A77970_CLK_S2D2),
};
/*
* CPG Clock Data
*/
/*
* MD EXTAL PLL0 PLL1 PLL3
* 14 13 19 (MHz)
*-------------------------------------------------
* 0 0 0 16.66 x 1 x192 x192 x96
* 0 0 1 16.66 x 1 x192 x192 x80
* 0 1 0 20 x 1 x160 x160 x80
* 0 1 1 20 x 1 x160 x160 x66
* 1 0 0 27 / 2 x236 x236 x118
* 1 0 1 27 / 2 x236 x236 x98
* 1 1 0 33.33 / 2 x192 x192 x96
* 1 1 1 33.33 / 2 x192 x192 x80
*/
#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \
(((md) & BIT(13)) >> 12) | \
(((md) & BIT(19)) >> 19))
static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[8] = {
/* EXTAL div PLL1 mult/div PLL3 mult/div */
{ 1, 192, 1, 96, 1, },
{ 1, 192, 1, 80, 1, },
{ 1, 160, 1, 80, 1, },
{ 1, 160, 1, 66, 1, },
{ 2, 236, 1, 118, 1, },
{ 2, 236, 1, 98, 1, },
{ 2, 192, 1, 96, 1, },
{ 2, 192, 1, 80, 1, },
};
static const struct mstp_stop_table r8a77970_mstp_table[] = {
{ 0x00230000, 0x0, 0x00230000, 0 },
{ 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
{ 0x14062FD8, 0x2040, 0x14062FD8, 0 },
{ 0xFFFFFFDF, 0x400, 0xFFFFFFDF, 0 },
{ 0x80000184, 0x180, 0x80000184, 0 },
{ 0x83FFFFFF, 0x0, 0x83FFFFFF, 0 },
{ 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
{ 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
{ 0x7FF3FFF4, 0x0, 0x7FF3FFF4, 0 },
{ 0xFBF7FF97, 0x0, 0xFBF7FF97, 0 },
{ 0xFFFEFFE0, 0x0, 0xFFFEFFE0, 0 },
{ 0x000000B7, 0x0, 0x000000B7, 0 },
};
static const void *r8a77970_get_pll_config(const u32 cpg_mode)
{
return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
}
static const struct cpg_mssr_info r8a77970_cpg_mssr_info = {
.core_clk = r8a77970_core_clks,
.core_clk_size = ARRAY_SIZE(r8a77970_core_clks),
.mod_clk = r8a77970_mod_clks,
.mod_clk_size = ARRAY_SIZE(r8a77970_mod_clks),
.mstp_table = r8a77970_mstp_table,
.mstp_table_size = ARRAY_SIZE(r8a77970_mstp_table),
.reset_node = "renesas,r8a77970-rst",
.extalr_node = "extalr",
.mod_clk_base = MOD_CLK_BASE,
.clk_extal_id = CLK_EXTAL,
.clk_extalr_id = CLK_EXTALR,
.get_pll_config = r8a77970_get_pll_config,
};
static const struct udevice_id r8a77970_clk_ids[] = {
{
.compatible = "renesas,r8a77970-cpg-mssr",
.data = (ulong)&r8a77970_cpg_mssr_info
},
{ }
};
U_BOOT_DRIVER(clk_r8a77970) = {
.name = "clk_r8a77970",
.id = UCLASS_CLK,
.of_match = r8a77970_clk_ids,
.priv_auto = sizeof(struct gen3_clk_priv),
.ops = &gen3_clk_ops,
.probe = gen3_clk_probe,
.remove = gen3_clk_remove,
};
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