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u-boot/drivers/clk/renesas/r8a7791-cpg-mssr.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

291 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* Renesas R8A7791 CPG MSSR driver
*
* Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
*
* Based on the following driver from Linux kernel:
* r8a7791 Clock Pulse Generator / Module Standby and Software Reset
* Copyright (C) 2015-2017 Glider bvba
* Based on clk-rcar-gen2.c
* Copyright (C) 2013 Ideas On Board SPRL
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <dt-bindings/clock/r8a7791-cpg-mssr.h>
#include "renesas-cpg-mssr.h"
#include "rcar-gen2-cpg.h"
enum clk_ids {
/* Core Clock Outputs exported to DT */
LAST_DT_CORE_CLK = R8A7791_CLK_OSC,
/* External Input Clocks */
CLK_EXTAL,
CLK_USB_EXTAL,
/* Internal Core Clocks */
CLK_MAIN,
CLK_PLL0,
CLK_PLL1,
CLK_PLL3,
CLK_PLL1_DIV2,
/* Module Clocks */
MOD_CLK_BASE
};
static const struct cpg_core_clk r8a7791_core_clks[] = {
/* External Clock Inputs */
DEF_INPUT("extal", CLK_EXTAL),
DEF_INPUT("usb_extal", CLK_USB_EXTAL),
/* Internal Core Clocks */
DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN2_MAIN, CLK_EXTAL),
DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN2_PLL0, CLK_MAIN),
DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN2_PLL1, CLK_MAIN),
DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN2_PLL3, CLK_MAIN),
DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),
/* Core Clock Outputs */
DEF_BASE("z", R8A7791_CLK_Z, CLK_TYPE_GEN2_Z, CLK_PLL0),
DEF_BASE("lb", R8A7791_CLK_LB, CLK_TYPE_GEN2_LB, CLK_PLL1),
DEF_BASE("adsp", R8A7791_CLK_ADSP, CLK_TYPE_GEN2_ADSP, CLK_PLL1),
DEF_BASE("sdh", R8A7791_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1),
DEF_BASE("sd0", R8A7791_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1),
DEF_BASE("qspi", R8A7791_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2),
DEF_BASE("rcan", R8A7791_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL),
DEF_FIXED("zg", R8A7791_CLK_ZG, CLK_PLL1, 3, 1),
DEF_FIXED("zx", R8A7791_CLK_ZX, CLK_PLL1, 3, 1),
DEF_FIXED("zs", R8A7791_CLK_ZS, CLK_PLL1, 6, 1),
DEF_FIXED("hp", R8A7791_CLK_HP, CLK_PLL1, 12, 1),
DEF_FIXED("i", R8A7791_CLK_I, CLK_PLL1, 2, 1),
DEF_FIXED("b", R8A7791_CLK_B, CLK_PLL1, 12, 1),
DEF_FIXED("p", R8A7791_CLK_P, CLK_PLL1, 24, 1),
DEF_FIXED("cl", R8A7791_CLK_CL, CLK_PLL1, 48, 1),
DEF_FIXED("m2", R8A7791_CLK_M2, CLK_PLL1, 8, 1),
DEF_FIXED("zb3", R8A7791_CLK_ZB3, CLK_PLL3, 4, 1),
DEF_FIXED("zb3d2", R8A7791_CLK_ZB3D2, CLK_PLL3, 8, 1),
DEF_FIXED("ddr", R8A7791_CLK_DDR, CLK_PLL3, 8, 1),
DEF_FIXED("mp", R8A7791_CLK_MP, CLK_PLL1_DIV2, 15, 1),
DEF_FIXED("cp", R8A7791_CLK_CP, CLK_EXTAL, 2, 1),
DEF_FIXED("r", R8A7791_CLK_R, CLK_PLL1, 49152, 1),
DEF_FIXED("osc", R8A7791_CLK_OSC, CLK_PLL1, 12288, 1),
DEF_DIV6P1("sd2", R8A7791_CLK_SD2, CLK_PLL1_DIV2, 0x078),
DEF_DIV6P1("sd3", R8A7791_CLK_SD3, CLK_PLL1_DIV2, 0x26c),
DEF_DIV6P1("mmc0", R8A7791_CLK_MMC0, CLK_PLL1_DIV2, 0x240),
DEF_DIV6P1("ssp", R8A7791_CLK_SSP, CLK_PLL1_DIV2, 0x248),
DEF_DIV6P1("ssprs", R8A7791_CLK_SSPRS, CLK_PLL1_DIV2, 0x24c),
};
static const struct mssr_mod_clk r8a7791_mod_clks[] = {
DEF_MOD("msiof0", 0, R8A7791_CLK_MP),
DEF_MOD("vcp0", 101, R8A7791_CLK_ZS),
DEF_MOD("vpc0", 103, R8A7791_CLK_ZS),
DEF_MOD("jpu", 106, R8A7791_CLK_M2),
DEF_MOD("ssp1", 109, R8A7791_CLK_ZS),
DEF_MOD("tmu1", 111, R8A7791_CLK_P),
DEF_MOD("3dg", 112, R8A7791_CLK_ZG),
DEF_MOD("2d-dmac", 115, R8A7791_CLK_ZS),
DEF_MOD("fdp1-1", 118, R8A7791_CLK_ZS),
DEF_MOD("fdp1-0", 119, R8A7791_CLK_ZS),
DEF_MOD("tmu3", 121, R8A7791_CLK_P),
DEF_MOD("tmu2", 122, R8A7791_CLK_P),
DEF_MOD("cmt0", 124, R8A7791_CLK_R),
DEF_MOD("tmu0", 125, R8A7791_CLK_CP),
DEF_MOD("vsp1du1", 127, R8A7791_CLK_ZS),
DEF_MOD("vsp1du0", 128, R8A7791_CLK_ZS),
DEF_MOD("vsp1-sy", 131, R8A7791_CLK_ZS),
DEF_MOD("scifa2", 202, R8A7791_CLK_MP),
DEF_MOD("scifa1", 203, R8A7791_CLK_MP),
DEF_MOD("scifa0", 204, R8A7791_CLK_MP),
DEF_MOD("msiof2", 205, R8A7791_CLK_MP),
DEF_MOD("scifb0", 206, R8A7791_CLK_MP),
DEF_MOD("scifb1", 207, R8A7791_CLK_MP),
DEF_MOD("msiof1", 208, R8A7791_CLK_MP),
DEF_MOD("scifb2", 216, R8A7791_CLK_MP),
DEF_MOD("sys-dmac1", 218, R8A7791_CLK_ZS),
DEF_MOD("sys-dmac0", 219, R8A7791_CLK_ZS),
DEF_MOD("tpu0", 304, R8A7791_CLK_CP),
DEF_MOD("sdhi3", 311, R8A7791_CLK_SD3),
DEF_MOD("sdhi2", 312, R8A7791_CLK_SD2),
DEF_MOD("sdhi0", 314, R8A7791_CLK_SD0),
DEF_MOD("mmcif0", 315, R8A7791_CLK_MMC0),
DEF_MOD("iic0", 318, R8A7791_CLK_HP),
DEF_MOD("pciec", 319, R8A7791_CLK_MP),
DEF_MOD("iic1", 323, R8A7791_CLK_HP),
DEF_MOD("usb3.0", 328, R8A7791_CLK_MP),
DEF_MOD("cmt1", 329, R8A7791_CLK_R),
DEF_MOD("usbhs-dmac0", 330, R8A7791_CLK_HP),
DEF_MOD("usbhs-dmac1", 331, R8A7791_CLK_HP),
DEF_MOD("irqc", 407, R8A7791_CLK_CP),
DEF_MOD("intc-sys", 408, R8A7791_CLK_ZS),
DEF_MOD("audio-dmac1", 501, R8A7791_CLK_HP),
DEF_MOD("audio-dmac0", 502, R8A7791_CLK_HP),
DEF_MOD("adsp_mod", 506, R8A7791_CLK_ADSP),
DEF_MOD("thermal", 522, CLK_EXTAL),
DEF_MOD("pwm", 523, R8A7791_CLK_P),
DEF_MOD("usb-ehci", 703, R8A7791_CLK_MP),
DEF_MOD("usbhs", 704, R8A7791_CLK_HP),
DEF_MOD("hscif2", 713, R8A7791_CLK_ZS),
DEF_MOD("scif5", 714, R8A7791_CLK_P),
DEF_MOD("scif4", 715, R8A7791_CLK_P),
DEF_MOD("hscif1", 716, R8A7791_CLK_ZS),
DEF_MOD("hscif0", 717, R8A7791_CLK_ZS),
DEF_MOD("scif3", 718, R8A7791_CLK_P),
DEF_MOD("scif2", 719, R8A7791_CLK_P),
DEF_MOD("scif1", 720, R8A7791_CLK_P),
DEF_MOD("scif0", 721, R8A7791_CLK_P),
DEF_MOD("du1", 723, R8A7791_CLK_ZX),
DEF_MOD("du0", 724, R8A7791_CLK_ZX),
DEF_MOD("lvds0", 726, R8A7791_CLK_ZX),
DEF_MOD("ipmmu-sgx", 800, R8A7791_CLK_ZX),
DEF_MOD("mlb", 802, R8A7791_CLK_HP),
DEF_MOD("vin2", 809, R8A7791_CLK_ZG),
DEF_MOD("vin1", 810, R8A7791_CLK_ZG),
DEF_MOD("vin0", 811, R8A7791_CLK_ZG),
DEF_MOD("etheravb", 812, R8A7791_CLK_HP),
DEF_MOD("ether", 813, R8A7791_CLK_P),
DEF_MOD("sata1", 814, R8A7791_CLK_ZS),
DEF_MOD("sata0", 815, R8A7791_CLK_ZS),
DEF_MOD("gyro-adc", 901, R8A7791_CLK_P),
DEF_MOD("gpio7", 904, R8A7791_CLK_CP),
DEF_MOD("gpio6", 905, R8A7791_CLK_CP),
DEF_MOD("gpio5", 907, R8A7791_CLK_CP),
DEF_MOD("gpio4", 908, R8A7791_CLK_CP),
DEF_MOD("gpio3", 909, R8A7791_CLK_CP),
DEF_MOD("gpio2", 910, R8A7791_CLK_CP),
DEF_MOD("gpio1", 911, R8A7791_CLK_CP),
DEF_MOD("gpio0", 912, R8A7791_CLK_CP),
DEF_MOD("can1", 915, R8A7791_CLK_P),
DEF_MOD("can0", 916, R8A7791_CLK_P),
DEF_MOD("qspi_mod", 917, R8A7791_CLK_QSPI),
DEF_MOD("i2c5", 925, R8A7791_CLK_HP),
DEF_MOD("iicdvfs", 926, R8A7791_CLK_CP),
DEF_MOD("i2c4", 927, R8A7791_CLK_HP),
DEF_MOD("i2c3", 928, R8A7791_CLK_HP),
DEF_MOD("i2c2", 929, R8A7791_CLK_HP),
DEF_MOD("i2c1", 930, R8A7791_CLK_HP),
DEF_MOD("i2c0", 931, R8A7791_CLK_HP),
DEF_MOD("ssi-all", 1005, R8A7791_CLK_P),
DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)),
DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)),
DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)),
DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)),
DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)),
DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)),
DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)),
DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)),
DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)),
DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)),
DEF_MOD("scu-all", 1017, R8A7791_CLK_P),
DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)),
DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)),
DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)),
DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)),
DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)),
DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)),
DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)),
DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)),
DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)),
DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)),
DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)),
DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)),
DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)),
DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)),
DEF_MOD("scifa3", 1106, R8A7791_CLK_MP),
DEF_MOD("scifa4", 1107, R8A7791_CLK_MP),
DEF_MOD("scifa5", 1108, R8A7791_CLK_MP),
};
/*
* CPG Clock Data
*/
/*
* MD EXTAL PLL0 PLL1 PLL3
* 14 13 19 (MHz) *1 *1
*---------------------------------------------------
* 0 0 0 15 x172/2 x208/2 x106
* 0 0 1 15 x172/2 x208/2 x88
* 0 1 0 20 x130/2 x156/2 x80
* 0 1 1 20 x130/2 x156/2 x66
* 1 0 0 26 / 2 x200/2 x240/2 x122
* 1 0 1 26 / 2 x200/2 x240/2 x102
* 1 1 0 30 / 2 x172/2 x208/2 x106
* 1 1 1 30 / 2 x172/2 x208/2 x88
*
* *1 : Table 7.5a indicates VCO output (PLLx = VCO/2)
*/
#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \
(((md) & BIT(13)) >> 12) | \
(((md) & BIT(19)) >> 19))
static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[8] = {
{ 1, 208, 106 }, { 1, 208, 88 }, { 1, 156, 80 }, { 1, 156, 66 },
{ 2, 240, 122 }, { 2, 240, 102 }, { 2, 208, 106 }, { 2, 208, 88 },
};
static const struct mstp_stop_table r8a7791_mstp_table[] = {
{ 0x00640801, 0x400000, 0x00640801, 0x0 },
{ 0x9B6C9B5A, 0x0, 0x9B6C9B5A, 0x0 },
{ 0x100D21FC, 0x2000, 0x100D21FC, 0x0 },
{ 0xF08CD810, 0x0, 0xF08CD810, 0x0 },
{ 0x800001C4, 0x180, 0x800001C4, 0x0 },
{ 0x44C00046, 0x0, 0x44C00046, 0x0 },
{ 0x0, 0x0, 0x0, 0x0 }, /* SMSTP6 is not present on Gen2 */
{ 0x05BFE618, 0x200000, 0x05BFE618, 0x0 },
{ 0x40C0FE85, 0x0, 0x40C0FE85, 0x0 },
{ 0xFF979FFF, 0x0, 0xFF979FFF, 0x0 },
{ 0xFFFEFFE0, 0x0, 0xFFFEFFE0, 0x0 },
{ 0x000001C0, 0x0, 0x000001C0, 0x0 },
};
static const void *r8a7791_get_pll_config(const u32 cpg_mode)
{
return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
}
static const struct cpg_mssr_info r8a7791_cpg_mssr_info = {
.core_clk = r8a7791_core_clks,
.core_clk_size = ARRAY_SIZE(r8a7791_core_clks),
.mod_clk = r8a7791_mod_clks,
.mod_clk_size = ARRAY_SIZE(r8a7791_mod_clks),
.mstp_table = r8a7791_mstp_table,
.mstp_table_size = ARRAY_SIZE(r8a7791_mstp_table),
.reset_node = "renesas,r8a7791-rst",
.extal_usb_node = "usb_extal",
.mod_clk_base = MOD_CLK_BASE,
.clk_extal_id = CLK_EXTAL,
.clk_extal_usb_id = CLK_USB_EXTAL,
.pll0_div = 2,
.get_pll_config = r8a7791_get_pll_config,
};
static const struct udevice_id r8a7791_clk_ids[] = {
{
.compatible = "renesas,r8a7791-cpg-mssr",
.data = (ulong)&r8a7791_cpg_mssr_info
},
{
.compatible = "renesas,r8a7793-cpg-mssr",
.data = (ulong)&r8a7791_cpg_mssr_info
},
{ }
};
U_BOOT_DRIVER(clk_r8a7791) = {
.name = "clk_r8a7791",
.id = UCLASS_CLK,
.of_match = r8a7791_clk_ids,
.priv_auto_alloc_size = sizeof(struct gen2_clk_priv),
.ops = &gen2_clk_ops,
.probe = gen2_clk_probe,
.remove = gen2_clk_remove,
};
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