clk: renesas: Updates for v4.14
- Add more module clocks for R-Car V2H and M3-W, - Add support for the R-Car Gen3 USB 2.0 clock selector PHY, - Add support for the new R-Car D3 SoC, - Allow compile-testing of all (sub)drivers now all dummy infrastructure is available, - Small fixes and cleanups. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZlVHhAAoJEEgEtLw/Ve77wqwP/1/RgfVlAoAHDL+aIo5FacVk uL5XPembCm7lCB+9OIU7GIrZQbZGWFBRUfL4oqOSfxqsTLv9gAKyZNUBETOKijXo NW0m6gkpN2+AZvZlTsZUzYLgdakNdOXi5atYn41zvAy2wbtww2aUqUHvwHz2PKjz k4ucRJEjljVGzTMu5/yqaADioEnTnb9FZ+uRGiy0/W+sD4UoEum75Ay6u3t7s0bL cmA2rtCFg52GlvC+BsZHntAjTHlSFXn7W8LddP1sb0oVvc9spC3k8q4DR8zVGNU2 VCk6XKyOnWTpHjyw/IYBAjQ+nNainklLyIusnEnG0VyUZY0pvFcC/SOAHxO4NSBS AJqD7ylhkc6gnYL0lqp+n6RJaoY4GOhpSFz+NNtPXFXaDUfuf+WTiYzHnrrCCZ4z jTGcmiynl229jAxN5fYudjfnbydBfvdKGINtVRI7ApP+oZa5K0Wzbd4ZDx4Q2mML 90mCdy+BVFGUcosh91kpL9vKazEm8EBYArMVhRDTFog6c4VyUrzL77fWleoptc4M yWlWB/KwfAhr0/NM1cxguax9bG1eOJbwq5FxHGwUqUCjxUxUWItNM9E1RMJ89drm zIsRO3CseOVFJcsm/75owYc/vXNbWcZ09wHyt8RExygPUPxRj3iCCvI5Y+tDqDIG zb2H5/e0HI7PjHt+hLEW =77l6 -----END PGP SIGNATURE----- Merge tag 'clk-renesas-for-v4.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next Pull Renesas clk driver updates from Geert Uytterhoeven: * Add more module clocks for R-Car V2H and M3-W, * Add support for the R-Car Gen3 USB 2.0 clock selector PHY, * Add support for the new R-Car D3 SoC, * Allow compile-testing of all (sub)drivers now all dummy infrastructure is available, * Small fixes and cleanups. * tag 'clk-renesas-for-v4.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: clk: renesas: r8a7796: Add USB3.0 clock clk: renesas: rcar-usb2-clock-sel: Add R-Car USB 2.0 clock selector PHY clk: renesas: cpg-mssr: Add R8A77995 support clk: renesas: rcar-gen3: Add support for SCCG/Clean peripheral clocks clk: renesas: rcar-gen3: Add divider support for PLL1 and PLL3 clk: renesas: Add r8a77995 CPG Core Clock Definitions clk: renesas: rcar-gen3-cpg: Refactor checks for accessing the div table clk: renesas: rcar-gen3-cpg: Drop superfluous variable clk: renesas: Allow compile-testing of all (sub)drivers clk: renesas: r8a7792: Add IMR-LX3/LSX3 clocks clk: renesas: div6: Document fields used for parent selection
This commit is contained in:
Коммит
535b1100d1
|
@ -22,6 +22,7 @@ Required Properties:
|
|||
- "renesas,r8a7794-cpg-mssr" for the r8a7794 SoC (R-Car E2)
|
||||
- "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC (R-Car H3)
|
||||
- "renesas,r8a7796-cpg-mssr" for the r8a7796 SoC (R-Car M3-W)
|
||||
- "renesas,r8a77995-cpg-mssr" for the r8a77995 SoC (R-Car D3)
|
||||
|
||||
- reg: Base address and length of the memory resource used by the CPG/MSSR
|
||||
block
|
||||
|
@ -30,7 +31,7 @@ Required Properties:
|
|||
clock-names
|
||||
- clock-names: List of external parent clock names. Valid names are:
|
||||
- "extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7792, r8a7793, r8a7794,
|
||||
r8a7795, r8a7796)
|
||||
r8a7795, r8a7796, r8a77995)
|
||||
- "extalr" (r8a7795, r8a7796)
|
||||
- "usb_extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7793, r8a7794)
|
||||
|
||||
|
|
|
@ -0,0 +1,55 @@
|
|||
* Renesas R-Car USB 2.0 clock selector
|
||||
|
||||
This file provides information on what the device node for the R-Car USB 2.0
|
||||
clock selector.
|
||||
|
||||
If you connect an external clock to the USB_EXTAL pin only, you should set
|
||||
the clock rate to "usb_extal" node only.
|
||||
If you connect an oscillator to both the USB_XTAL and USB_EXTAL, this module
|
||||
is not needed because this is default setting. (Of course, you can set the
|
||||
clock rates to both "usb_extal" and "usb_xtal" nodes.
|
||||
|
||||
Case 1: An external clock connects to R-Car SoC
|
||||
+----------+ +--- R-Car ---------------------+
|
||||
|External |---|USB_EXTAL ---> all usb channels|
|
||||
|clock | |USB_XTAL |
|
||||
+----------+ +-------------------------------+
|
||||
In this case, we need this driver with "usb_extal" clock.
|
||||
|
||||
Case 2: An oscillator connects to R-Car SoC
|
||||
+----------+ +--- R-Car ---------------------+
|
||||
|Oscillator|---|USB_EXTAL -+-> all usb channels|
|
||||
| |---|USB_XTAL --+ |
|
||||
+----------+ +-------------------------------+
|
||||
In this case, we don't need this selector.
|
||||
|
||||
Required properties:
|
||||
- compatible: "renesas,r8a7795-rcar-usb2-clock-sel" if the device is a part of
|
||||
an R8A7795 SoC.
|
||||
"renesas,r8a7796-rcar-usb2-clock-sel" if the device if a part of
|
||||
an R8A7796 SoC.
|
||||
"renesas,rcar-gen3-usb2-clock-sel" for a generic R-Car Gen3
|
||||
compatible device.
|
||||
|
||||
When compatible with the generic version, nodes must list the
|
||||
SoC-specific version corresponding to the platform first
|
||||
followed by the generic version.
|
||||
|
||||
- reg: offset and length of the USB 2.0 clock selector register block.
|
||||
- clocks: A list of phandles and specifier pairs.
|
||||
- clock-names: Name of the clocks.
|
||||
- The functional clock must be "ehci_ohci"
|
||||
- The USB_EXTAL clock pin must be "usb_extal"
|
||||
- The USB_XTAL clock pin must be "usb_xtal"
|
||||
- #clock-cells: Must be 0
|
||||
|
||||
Example (R-Car H3):
|
||||
|
||||
usb2_clksel: clock-controller@e6590630 {
|
||||
compatible = "renesas,r8a77950-rcar-usb2-clock-sel",
|
||||
"renesas,rcar-gen3-usb2-clock-sel";
|
||||
reg = <0 0xe6590630 0 0x02>;
|
||||
clocks = <&cpg CPG_MOD 703>, <&usb_extal>, <&usb_xtal>;
|
||||
clock-names = "ehci_ohci", "usb_extal", "usb_xtal";
|
||||
#clock-cells = <0>;
|
||||
};
|
|
@ -15,6 +15,7 @@ config CLK_RENESAS
|
|||
select CLK_R8A7794 if ARCH_R8A7794
|
||||
select CLK_R8A7795 if ARCH_R8A7795
|
||||
select CLK_R8A7796 if ARCH_R8A7796
|
||||
select CLK_R8A77995 if ARCH_R8A77995
|
||||
select CLK_SH73A0 if ARCH_SH73A0
|
||||
|
||||
if CLK_RENESAS
|
||||
|
@ -34,94 +35,103 @@ config CLK_EMEV2
|
|||
bool "Emma Mobile EV2 clock support" if COMPILE_TEST
|
||||
|
||||
config CLK_RZA1
|
||||
bool
|
||||
bool "RZ/A1H clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_CPG_MSTP
|
||||
|
||||
config CLK_R8A73A4
|
||||
bool
|
||||
bool "R-Mobile APE6 clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_CPG_MSTP
|
||||
select CLK_RENESAS_DIV6
|
||||
|
||||
config CLK_R8A7740
|
||||
bool
|
||||
bool "R-Mobile A1 clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_CPG_MSTP
|
||||
select CLK_RENESAS_DIV6
|
||||
|
||||
config CLK_R8A7743
|
||||
bool
|
||||
bool "RZ/G1M clock support" if COMPILE_TEST
|
||||
select CLK_RCAR_GEN2_CPG
|
||||
|
||||
config CLK_R8A7745
|
||||
bool
|
||||
bool "RZ/G1E clock support" if COMPILE_TEST
|
||||
select CLK_RCAR_GEN2_CPG
|
||||
|
||||
config CLK_R8A7778
|
||||
bool
|
||||
bool "R-Car M1A clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_CPG_MSTP
|
||||
|
||||
config CLK_R8A7779
|
||||
bool
|
||||
bool "R-Car H1 clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_CPG_MSTP
|
||||
|
||||
config CLK_R8A7790
|
||||
bool
|
||||
bool "R-Car H2 clock support" if COMPILE_TEST
|
||||
select CLK_RCAR_GEN2 if CLK_RENESAS_LEGACY
|
||||
select CLK_RCAR_GEN2_CPG
|
||||
select CLK_RENESAS_DIV6
|
||||
|
||||
config CLK_R8A7791
|
||||
bool
|
||||
bool "R-Car M2-W/N clock support" if COMPILE_TEST
|
||||
select CLK_RCAR_GEN2 if CLK_RENESAS_LEGACY
|
||||
select CLK_RCAR_GEN2_CPG
|
||||
select CLK_RENESAS_DIV6
|
||||
|
||||
config CLK_R8A7792
|
||||
bool
|
||||
bool "R-Car V2H clock support" if COMPILE_TEST
|
||||
select CLK_RCAR_GEN2 if CLK_RENESAS_LEGACY
|
||||
select CLK_RCAR_GEN2_CPG
|
||||
|
||||
config CLK_R8A7794
|
||||
bool
|
||||
bool "R-Car E2 clock support" if COMPILE_TEST
|
||||
select CLK_RCAR_GEN2 if CLK_RENESAS_LEGACY
|
||||
select CLK_RCAR_GEN2_CPG
|
||||
select CLK_RENESAS_DIV6
|
||||
|
||||
config CLK_R8A7795
|
||||
bool
|
||||
bool "R-Car H3 clock support" if COMPILE_TEST
|
||||
select CLK_RCAR_GEN3_CPG
|
||||
|
||||
config CLK_R8A7796
|
||||
bool
|
||||
bool "R-Car M3-W clock support" if COMPILE_TEST
|
||||
select CLK_RCAR_GEN3_CPG
|
||||
|
||||
config CLK_R8A77995
|
||||
bool "R-Car D3 clock support" if COMPILE_TEST
|
||||
select CLK_RCAR_GEN3_CPG
|
||||
|
||||
config CLK_SH73A0
|
||||
bool
|
||||
bool "SH-Mobile AG5 clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_CPG_MSTP
|
||||
select CLK_RENESAS_DIV6
|
||||
|
||||
|
||||
# Family
|
||||
config CLK_RCAR_GEN2
|
||||
bool
|
||||
bool "R-Car Gen2 legacy clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_CPG_MSTP
|
||||
select CLK_RENESAS_DIV6
|
||||
|
||||
config CLK_RCAR_GEN2_CPG
|
||||
bool
|
||||
bool "R-Car Gen2 CPG clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_CPG_MSSR
|
||||
|
||||
config CLK_RCAR_GEN3_CPG
|
||||
bool
|
||||
bool "R-Car Gen3 CPG clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_CPG_MSSR
|
||||
|
||||
config CLK_RCAR_USB2_CLOCK_SEL
|
||||
bool "Renesas R-Car USB2 clock selector support"
|
||||
depends on ARCH_RENESAS || COMPILE_TEST
|
||||
help
|
||||
This is a driver for R-Car USB2 clock selector
|
||||
|
||||
# Generic
|
||||
config CLK_RENESAS_CPG_MSSR
|
||||
bool
|
||||
bool "CPG/MSSR clock support" if COMPILE_TEST
|
||||
select CLK_RENESAS_DIV6
|
||||
|
||||
config CLK_RENESAS_CPG_MSTP
|
||||
bool
|
||||
bool "MSTP clock support" if COMPILE_TEST
|
||||
|
||||
config CLK_RENESAS_DIV6
|
||||
bool "DIV6 clock support" if COMPILE_TEST
|
||||
|
|
|
@ -13,12 +13,14 @@ obj-$(CONFIG_CLK_R8A7792) += r8a7792-cpg-mssr.o
|
|||
obj-$(CONFIG_CLK_R8A7794) += r8a7794-cpg-mssr.o
|
||||
obj-$(CONFIG_CLK_R8A7795) += r8a7795-cpg-mssr.o
|
||||
obj-$(CONFIG_CLK_R8A7796) += r8a7796-cpg-mssr.o
|
||||
obj-$(CONFIG_CLK_R8A77995) += r8a77995-cpg-mssr.o
|
||||
obj-$(CONFIG_CLK_SH73A0) += clk-sh73a0.o
|
||||
|
||||
# Family
|
||||
obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o
|
||||
obj-$(CONFIG_CLK_RCAR_GEN2_CPG) += rcar-gen2-cpg.o
|
||||
obj-$(CONFIG_CLK_RCAR_GEN3_CPG) += rcar-gen3-cpg.o
|
||||
obj-$(CONFIG_CLK_RCAR_USB2_CLOCK_SEL) += rcar-usb2-clock-sel.o
|
||||
|
||||
# Generic
|
||||
obj-$(CONFIG_CLK_RENESAS_CPG_MSSR) += renesas-cpg-mssr.o
|
||||
|
|
|
@ -29,6 +29,9 @@
|
|||
* @hw: handle between common and hardware-specific interfaces
|
||||
* @reg: IO-remapped register
|
||||
* @div: divisor value (1-64)
|
||||
* @src_shift: Shift to access the register bits to select the parent clock
|
||||
* @src_width: Number of register bits to select the parent clock (may be 0)
|
||||
* @parents: Array to map from valid parent clocks indices to hardware indices
|
||||
*/
|
||||
struct div6_clock {
|
||||
struct clk_hw hw;
|
||||
|
|
|
@ -118,6 +118,13 @@ static const struct mssr_mod_clk r8a7792_mod_clks[] __initconst = {
|
|||
DEF_MOD("vin1", 810, R8A7792_CLK_ZG),
|
||||
DEF_MOD("vin0", 811, R8A7792_CLK_ZG),
|
||||
DEF_MOD("etheravb", 812, R8A7792_CLK_HP),
|
||||
DEF_MOD("imr-lx3", 821, R8A7792_CLK_ZG),
|
||||
DEF_MOD("imr-lsx3-1", 822, R8A7792_CLK_ZG),
|
||||
DEF_MOD("imr-lsx3-0", 823, R8A7792_CLK_ZG),
|
||||
DEF_MOD("imr-lsx3-5", 825, R8A7792_CLK_ZG),
|
||||
DEF_MOD("imr-lsx3-4", 826, R8A7792_CLK_ZG),
|
||||
DEF_MOD("imr-lsx3-3", 827, R8A7792_CLK_ZG),
|
||||
DEF_MOD("imr-lsx3-2", 828, R8A7792_CLK_ZG),
|
||||
DEF_MOD("gyro-adc", 901, R8A7792_CLK_P),
|
||||
DEF_MOD("gpio7", 904, R8A7792_CLK_CP),
|
||||
DEF_MOD("gpio6", 905, R8A7792_CLK_CP),
|
||||
|
|
|
@ -305,23 +305,23 @@ static const unsigned int r8a7795_crit_mod_clks[] __initconst = {
|
|||
(((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, },
|
||||
/* EXTAL div PLL1 mult/div PLL3 mult/div */
|
||||
{ 1, 192, 1, 192, 1, },
|
||||
{ 1, 192, 1, 128, 1, },
|
||||
{ 0, /* Prohibited setting */ },
|
||||
{ 1, 192, 1, 192, 1, },
|
||||
{ 1, 160, 1, 160, 1, },
|
||||
{ 1, 160, 1, 106, 1, },
|
||||
{ 0, /* Prohibited setting */ },
|
||||
{ 1, 160, 1, 160, 1, },
|
||||
{ 1, 128, 1, 128, 1, },
|
||||
{ 1, 128, 1, 84, 1, },
|
||||
{ 0, /* Prohibited setting */ },
|
||||
{ 1, 128, 1, 128, 1, },
|
||||
{ 2, 192, 1, 192, 1, },
|
||||
{ 2, 192, 1, 128, 1, },
|
||||
{ 0, /* Prohibited setting */ },
|
||||
{ 2, 192, 1, 192, 1, },
|
||||
};
|
||||
|
||||
static const struct soc_device_attribute r8a7795es1[] __initconst = {
|
||||
|
|
|
@ -138,6 +138,7 @@ static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
|
|||
DEF_MOD("sdif0", 314, R8A7796_CLK_SD0),
|
||||
DEF_MOD("pcie1", 318, R8A7796_CLK_S3D1),
|
||||
DEF_MOD("pcie0", 319, R8A7796_CLK_S3D1),
|
||||
DEF_MOD("usb3-if0", 328, R8A7796_CLK_S3D1),
|
||||
DEF_MOD("usb-dmac0", 330, R8A7796_CLK_S3D1),
|
||||
DEF_MOD("usb-dmac1", 331, R8A7796_CLK_S3D1),
|
||||
DEF_MOD("rwdt", 402, R8A7796_CLK_R),
|
||||
|
@ -277,23 +278,23 @@ static const unsigned int r8a7796_crit_mod_clks[] __initconst = {
|
|||
(((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, },
|
||||
/* EXTAL div PLL1 mult/div PLL3 mult/div */
|
||||
{ 1, 192, 1, 192, 1, },
|
||||
{ 1, 192, 1, 128, 1, },
|
||||
{ 0, /* Prohibited setting */ },
|
||||
{ 1, 192, 1, 192, 1, },
|
||||
{ 1, 160, 1, 160, 1, },
|
||||
{ 1, 160, 1, 106, 1, },
|
||||
{ 0, /* Prohibited setting */ },
|
||||
{ 1, 160, 1, 160, 1, },
|
||||
{ 1, 128, 1, 128, 1, },
|
||||
{ 1, 128, 1, 84, 1, },
|
||||
{ 0, /* Prohibited setting */ },
|
||||
{ 1, 128, 1, 128, 1, },
|
||||
{ 2, 192, 1, 192, 1, },
|
||||
{ 2, 192, 1, 128, 1, },
|
||||
{ 0, /* Prohibited setting */ },
|
||||
{ 2, 192, 1, 192, 1, },
|
||||
};
|
||||
|
||||
static int __init r8a7796_cpg_mssr_init(struct device *dev)
|
||||
|
|
|
@ -0,0 +1,236 @@
|
|||
/*
|
||||
* r8a77995 Clock Pulse Generator / Module Standby and Software Reset
|
||||
*
|
||||
* Copyright (C) 2017 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 <linux/soc/renesas/rcar-rst.h>
|
||||
|
||||
#include <dt-bindings/clock/r8a77995-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 = R8A77995_CLK_CP,
|
||||
|
||||
/* External Input Clocks */
|
||||
CLK_EXTAL,
|
||||
|
||||
/* Internal Core Clocks */
|
||||
CLK_MAIN,
|
||||
CLK_PLL0,
|
||||
CLK_PLL1,
|
||||
CLK_PLL3,
|
||||
CLK_PLL0D2,
|
||||
CLK_PLL0D3,
|
||||
CLK_PLL0D5,
|
||||
CLK_PLL1D2,
|
||||
CLK_PE,
|
||||
CLK_S0,
|
||||
CLK_S1,
|
||||
CLK_S2,
|
||||
CLK_S3,
|
||||
CLK_SDSRC,
|
||||
CLK_SSPSRC,
|
||||
|
||||
/* Module Clocks */
|
||||
MOD_CLK_BASE
|
||||
};
|
||||
|
||||
static const struct cpg_core_clk r8a77995_core_clks[] __initconst = {
|
||||
/* External Clock Inputs */
|
||||
DEF_INPUT("extal", CLK_EXTAL),
|
||||
|
||||
/* Internal Core Clocks */
|
||||
DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
|
||||
DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
|
||||
DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
|
||||
|
||||
DEF_FIXED(".pll0", CLK_PLL0, CLK_MAIN, 4, 250),
|
||||
DEF_FIXED(".pll0d2", CLK_PLL0D2, CLK_PLL0, 2, 1),
|
||||
DEF_FIXED(".pll0d3", CLK_PLL0D3, CLK_PLL0, 3, 1),
|
||||
DEF_FIXED(".pll0d5", CLK_PLL0D5, CLK_PLL0, 5, 1),
|
||||
DEF_FIXED(".pll1d2", CLK_PLL1D2, CLK_PLL1, 2, 1),
|
||||
DEF_FIXED(".pe", CLK_PE, CLK_PLL0D3, 4, 1),
|
||||
DEF_FIXED(".s0", CLK_S0, CLK_PLL1, 2, 1),
|
||||
DEF_FIXED(".s1", CLK_S1, CLK_PLL1, 3, 1),
|
||||
DEF_FIXED(".s2", CLK_S2, CLK_PLL1, 4, 1),
|
||||
DEF_FIXED(".s3", CLK_S3, CLK_PLL1, 6, 1),
|
||||
DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1, 2, 1),
|
||||
|
||||
/* Core Clock Outputs */
|
||||
DEF_FIXED("z2", R8A77995_CLK_Z2, CLK_PLL0D3, 1, 1),
|
||||
DEF_FIXED("ztr", R8A77995_CLK_ZTR, CLK_PLL1, 6, 1),
|
||||
DEF_FIXED("zt", R8A77995_CLK_ZT, CLK_PLL1, 4, 1),
|
||||
DEF_FIXED("zx", R8A77995_CLK_ZX, CLK_PLL1, 3, 1),
|
||||
DEF_FIXED("s0d1", R8A77995_CLK_S0D1, CLK_S0, 1, 1),
|
||||
DEF_FIXED("s1d1", R8A77995_CLK_S1D1, CLK_S1, 1, 1),
|
||||
DEF_FIXED("s1d2", R8A77995_CLK_S1D2, CLK_S1, 2, 1),
|
||||
DEF_FIXED("s1d4", R8A77995_CLK_S1D4, CLK_S1, 4, 1),
|
||||
DEF_FIXED("s2d1", R8A77995_CLK_S2D1, CLK_S2, 1, 1),
|
||||
DEF_FIXED("s2d2", R8A77995_CLK_S2D2, CLK_S2, 2, 1),
|
||||
DEF_FIXED("s2d4", R8A77995_CLK_S2D4, CLK_S2, 4, 1),
|
||||
DEF_FIXED("s3d1", R8A77995_CLK_S3D1, CLK_S3, 1, 1),
|
||||
DEF_FIXED("s3d2", R8A77995_CLK_S3D2, CLK_S3, 2, 1),
|
||||
DEF_FIXED("s3d4", R8A77995_CLK_S3D4, CLK_S3, 4, 1),
|
||||
|
||||
DEF_FIXED("cl", R8A77995_CLK_CL, CLK_PLL1, 48, 1),
|
||||
DEF_FIXED("cp", R8A77995_CLK_CP, CLK_EXTAL, 2, 1),
|
||||
DEF_FIXED("osc", R8A77995_CLK_OSC, CLK_EXTAL, 384, 1),
|
||||
DEF_FIXED("r", R8A77995_CLK_R, CLK_EXTAL, 1536, 1),
|
||||
|
||||
DEF_GEN3_PE("s1d4c", R8A77995_CLK_S1D4C, CLK_S1, 4, CLK_PE, 2),
|
||||
DEF_GEN3_PE("s3d1c", R8A77995_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1),
|
||||
DEF_GEN3_PE("s3d2c", R8A77995_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2),
|
||||
DEF_GEN3_PE("s3d4c", R8A77995_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4),
|
||||
|
||||
DEF_GEN3_SD("sd0", R8A77995_CLK_SD0, CLK_SDSRC, 0x268),
|
||||
|
||||
DEF_DIV6P1("canfd", R8A77995_CLK_CANFD, CLK_PLL0D3, 0x244),
|
||||
DEF_DIV6P1("mso", R8A77995_CLK_MSO, CLK_PLL1D2, 0x014),
|
||||
};
|
||||
|
||||
static const struct mssr_mod_clk r8a77995_mod_clks[] __initconst = {
|
||||
DEF_MOD("scif5", 202, R8A77995_CLK_S3D4C),
|
||||
DEF_MOD("scif4", 203, R8A77995_CLK_S3D4C),
|
||||
DEF_MOD("scif3", 204, R8A77995_CLK_S3D4C),
|
||||
DEF_MOD("scif1", 206, R8A77995_CLK_S3D4C),
|
||||
DEF_MOD("scif0", 207, R8A77995_CLK_S3D4C),
|
||||
DEF_MOD("msiof3", 208, R8A77995_CLK_MSO),
|
||||
DEF_MOD("msiof2", 209, R8A77995_CLK_MSO),
|
||||
DEF_MOD("msiof1", 210, R8A77995_CLK_MSO),
|
||||
DEF_MOD("msiof0", 211, R8A77995_CLK_MSO),
|
||||
DEF_MOD("sys-dmac2", 217, R8A77995_CLK_S3D1),
|
||||
DEF_MOD("sys-dmac1", 218, R8A77995_CLK_S3D1),
|
||||
DEF_MOD("sys-dmac0", 219, R8A77995_CLK_S3D1),
|
||||
DEF_MOD("cmt3", 300, R8A77995_CLK_R),
|
||||
DEF_MOD("cmt2", 301, R8A77995_CLK_R),
|
||||
DEF_MOD("cmt1", 302, R8A77995_CLK_R),
|
||||
DEF_MOD("cmt0", 303, R8A77995_CLK_R),
|
||||
DEF_MOD("scif2", 310, R8A77995_CLK_S3D4C),
|
||||
DEF_MOD("emmc0", 312, R8A77995_CLK_SD0),
|
||||
DEF_MOD("usb-dmac0", 330, R8A77995_CLK_S3D1),
|
||||
DEF_MOD("usb-dmac1", 331, R8A77995_CLK_S3D1),
|
||||
DEF_MOD("rwdt", 402, R8A77995_CLK_R),
|
||||
DEF_MOD("intc-ex", 407, R8A77995_CLK_CP),
|
||||
DEF_MOD("intc-ap", 408, R8A77995_CLK_S3D1),
|
||||
DEF_MOD("audmac0", 502, R8A77995_CLK_S3D1),
|
||||
DEF_MOD("hscif3", 517, R8A77995_CLK_S3D1C),
|
||||
DEF_MOD("hscif0", 520, R8A77995_CLK_S3D1C),
|
||||
DEF_MOD("thermal", 522, R8A77995_CLK_CP),
|
||||
DEF_MOD("pwm", 523, R8A77995_CLK_S3D4C),
|
||||
DEF_MOD("fcpvd1", 602, R8A77995_CLK_S1D2),
|
||||
DEF_MOD("fcpvd0", 603, R8A77995_CLK_S1D2),
|
||||
DEF_MOD("fcpvbs", 607, R8A77995_CLK_S0D1),
|
||||
DEF_MOD("vspd1", 622, R8A77995_CLK_S1D2),
|
||||
DEF_MOD("vspd0", 623, R8A77995_CLK_S1D2),
|
||||
DEF_MOD("vspbs", 627, R8A77995_CLK_S0D1),
|
||||
DEF_MOD("ehci0", 703, R8A77995_CLK_S3D2),
|
||||
DEF_MOD("hsusb", 704, R8A77995_CLK_S3D2),
|
||||
DEF_MOD("du1", 723, R8A77995_CLK_S2D1),
|
||||
DEF_MOD("du0", 724, R8A77995_CLK_S2D1),
|
||||
DEF_MOD("lvds", 727, R8A77995_CLK_S2D1),
|
||||
DEF_MOD("vin7", 804, R8A77995_CLK_S1D2),
|
||||
DEF_MOD("vin6", 805, R8A77995_CLK_S1D2),
|
||||
DEF_MOD("vin5", 806, R8A77995_CLK_S1D2),
|
||||
DEF_MOD("vin4", 807, R8A77995_CLK_S1D2),
|
||||
DEF_MOD("etheravb", 812, R8A77995_CLK_S3D2),
|
||||
DEF_MOD("imr0", 823, R8A77995_CLK_S1D2),
|
||||
DEF_MOD("gpio6", 906, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("gpio5", 907, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("gpio4", 908, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("gpio3", 909, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("gpio2", 910, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("gpio1", 911, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("gpio0", 912, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("can-fd", 914, R8A77995_CLK_S3D2),
|
||||
DEF_MOD("can-if1", 915, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("can-if0", 916, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("i2c3", 928, R8A77995_CLK_S3D2),
|
||||
DEF_MOD("i2c2", 929, R8A77995_CLK_S3D2),
|
||||
DEF_MOD("i2c1", 930, R8A77995_CLK_S3D2),
|
||||
DEF_MOD("i2c0", 931, R8A77995_CLK_S3D2),
|
||||
DEF_MOD("ssi-all", 1005, R8A77995_CLK_S3D4),
|
||||
DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)),
|
||||
DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)),
|
||||
DEF_MOD("scu-all", 1017, R8A77995_CLK_S3D4),
|
||||
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-src6", 1025, MOD_CLK_ID(1017)),
|
||||
DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)),
|
||||
};
|
||||
|
||||
static const unsigned int r8a77995_crit_mod_clks[] __initconst = {
|
||||
MOD_CLK_ID(408), /* INTC-AP (GIC) */
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* CPG Clock Data
|
||||
*/
|
||||
|
||||
/*
|
||||
* MD19 EXTAL (MHz) PLL0 PLL1 PLL3
|
||||
*--------------------------------------------------------------------
|
||||
* 0 48 x 1 x250/4 x100/3 x100/3
|
||||
* 1 48 x 1 x250/4 x100/3 x116/6
|
||||
*/
|
||||
#define CPG_PLL_CONFIG_INDEX(md) (((md) & BIT(19)) >> 19)
|
||||
|
||||
static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] __initconst = {
|
||||
/* EXTAL div PLL1 mult/div PLL3 mult/div */
|
||||
{ 1, 100, 3, 100, 3, },
|
||||
{ 1, 100, 3, 116, 6, },
|
||||
};
|
||||
|
||||
static int __init r8a77995_cpg_mssr_init(struct device *dev)
|
||||
{
|
||||
const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
|
||||
u32 cpg_mode;
|
||||
int error;
|
||||
|
||||
error = rcar_rst_read_mode_pins(&cpg_mode);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
|
||||
|
||||
return rcar_gen3_cpg_init(cpg_pll_config, 0, cpg_mode);
|
||||
}
|
||||
|
||||
const struct cpg_mssr_info r8a77995_cpg_mssr_info __initconst = {
|
||||
/* Core Clocks */
|
||||
.core_clks = r8a77995_core_clks,
|
||||
.num_core_clks = ARRAY_SIZE(r8a77995_core_clks),
|
||||
.last_dt_core_clk = LAST_DT_CORE_CLK,
|
||||
.num_total_core_clks = MOD_CLK_BASE,
|
||||
|
||||
/* Module Clocks */
|
||||
.mod_clks = r8a77995_mod_clks,
|
||||
.num_mod_clks = ARRAY_SIZE(r8a77995_mod_clks),
|
||||
.num_hw_mod_clks = 12 * 32,
|
||||
|
||||
/* Critical Module Clocks */
|
||||
.crit_mod_clks = r8a77995_crit_mod_clks,
|
||||
.num_crit_mod_clks = ARRAY_SIZE(r8a77995_crit_mod_clks),
|
||||
|
||||
/* Callbacks */
|
||||
.init = r8a77995_cpg_mssr_init,
|
||||
.cpg_clk_register = rcar_gen3_cpg_clk_register,
|
||||
};
|
|
@ -60,6 +60,7 @@ struct sd_clock {
|
|||
unsigned int div_num;
|
||||
unsigned int div_min;
|
||||
unsigned int div_max;
|
||||
unsigned int cur_div_idx;
|
||||
};
|
||||
|
||||
/* SDn divider
|
||||
|
@ -96,21 +97,10 @@ static const struct sd_div_table cpg_sd_div_table[] = {
|
|||
static int cpg_sd_clock_enable(struct clk_hw *hw)
|
||||
{
|
||||
struct sd_clock *clock = to_sd_clock(hw);
|
||||
u32 val, sd_fc;
|
||||
unsigned int i;
|
||||
|
||||
val = readl(clock->reg);
|
||||
|
||||
sd_fc = val & CPG_SD_FC_MASK;
|
||||
for (i = 0; i < clock->div_num; i++)
|
||||
if (sd_fc == (clock->div_table[i].val & CPG_SD_FC_MASK))
|
||||
break;
|
||||
|
||||
if (i >= clock->div_num)
|
||||
return -EINVAL;
|
||||
u32 val = readl(clock->reg);
|
||||
|
||||
val &= ~(CPG_SD_STP_MASK);
|
||||
val |= clock->div_table[i].val & CPG_SD_STP_MASK;
|
||||
val |= clock->div_table[clock->cur_div_idx].val & CPG_SD_STP_MASK;
|
||||
|
||||
writel(val, clock->reg);
|
||||
|
||||
|
@ -135,21 +125,9 @@ static unsigned long cpg_sd_clock_recalc_rate(struct clk_hw *hw,
|
|||
unsigned long parent_rate)
|
||||
{
|
||||
struct sd_clock *clock = to_sd_clock(hw);
|
||||
unsigned long rate = parent_rate;
|
||||
u32 val, sd_fc;
|
||||
unsigned int i;
|
||||
|
||||
val = readl(clock->reg);
|
||||
|
||||
sd_fc = val & CPG_SD_FC_MASK;
|
||||
for (i = 0; i < clock->div_num; i++)
|
||||
if (sd_fc == (clock->div_table[i].val & CPG_SD_FC_MASK))
|
||||
break;
|
||||
|
||||
if (i >= clock->div_num)
|
||||
return -EINVAL;
|
||||
|
||||
return DIV_ROUND_CLOSEST(rate, clock->div_table[i].div);
|
||||
return DIV_ROUND_CLOSEST(parent_rate,
|
||||
clock->div_table[clock->cur_div_idx].div);
|
||||
}
|
||||
|
||||
static unsigned int cpg_sd_clock_calc_div(struct sd_clock *clock,
|
||||
|
@ -190,6 +168,8 @@ static int cpg_sd_clock_set_rate(struct clk_hw *hw, unsigned long rate,
|
|||
if (i >= clock->div_num)
|
||||
return -EINVAL;
|
||||
|
||||
clock->cur_div_idx = i;
|
||||
|
||||
val = readl(clock->reg);
|
||||
val &= ~(CPG_SD_STP_MASK | CPG_SD_FC_MASK);
|
||||
val |= clock->div_table[i].val & (CPG_SD_STP_MASK | CPG_SD_FC_MASK);
|
||||
|
@ -215,6 +195,7 @@ static struct clk * __init cpg_sd_clk_register(const struct cpg_core_clk *core,
|
|||
struct sd_clock *clock;
|
||||
struct clk *clk;
|
||||
unsigned int i;
|
||||
u32 sd_fc;
|
||||
|
||||
clock = kzalloc(sizeof(*clock), GFP_KERNEL);
|
||||
if (!clock)
|
||||
|
@ -231,6 +212,18 @@ static struct clk * __init cpg_sd_clk_register(const struct cpg_core_clk *core,
|
|||
clock->div_table = cpg_sd_div_table;
|
||||
clock->div_num = ARRAY_SIZE(cpg_sd_div_table);
|
||||
|
||||
sd_fc = readl(clock->reg) & CPG_SD_FC_MASK;
|
||||
for (i = 0; i < clock->div_num; i++)
|
||||
if (sd_fc == (clock->div_table[i].val & CPG_SD_FC_MASK))
|
||||
break;
|
||||
|
||||
if (WARN_ON(i >= clock->div_num)) {
|
||||
kfree(clock);
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
|
||||
clock->cur_div_idx = i;
|
||||
|
||||
clock->div_max = clock->div_table[0].div;
|
||||
clock->div_min = clock->div_max;
|
||||
for (i = 1; i < clock->div_num; i++) {
|
||||
|
@ -279,7 +272,7 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
|
|||
unsigned int div = 1;
|
||||
u32 value;
|
||||
|
||||
parent = clks[core->parent];
|
||||
parent = clks[core->parent & 0xffff]; /* CLK_TYPE_PE uses high bits */
|
||||
if (IS_ERR(parent))
|
||||
return ERR_CAST(parent);
|
||||
|
||||
|
@ -303,6 +296,7 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
|
|||
|
||||
case CLK_TYPE_GEN3_PLL1:
|
||||
mult = cpg_pll_config->pll1_mult;
|
||||
div = cpg_pll_config->pll1_div;
|
||||
break;
|
||||
|
||||
case CLK_TYPE_GEN3_PLL2:
|
||||
|
@ -320,6 +314,7 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
|
|||
|
||||
case CLK_TYPE_GEN3_PLL3:
|
||||
mult = cpg_pll_config->pll3_mult;
|
||||
div = cpg_pll_config->pll3_div;
|
||||
break;
|
||||
|
||||
case CLK_TYPE_GEN3_PLL4:
|
||||
|
@ -360,6 +355,24 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
|
|||
parent = clks[cpg_clk_extalr];
|
||||
break;
|
||||
|
||||
case CLK_TYPE_GEN3_PE:
|
||||
/*
|
||||
* Peripheral clock with a fixed divider, selectable between
|
||||
* clean and spread spectrum parents using MD12
|
||||
*/
|
||||
if (cpg_mode & BIT(12)) {
|
||||
/* Clean */
|
||||
div = core->div & 0xffff;
|
||||
} else {
|
||||
/* SCCG */
|
||||
parent = clks[core->parent >> 16];
|
||||
if (IS_ERR(parent))
|
||||
return ERR_CAST(parent);
|
||||
div = core->div >> 16;
|
||||
}
|
||||
mult = 1;
|
||||
break;
|
||||
|
||||
default:
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
|
|
|
@ -20,15 +20,24 @@ enum rcar_gen3_clk_types {
|
|||
CLK_TYPE_GEN3_PLL4,
|
||||
CLK_TYPE_GEN3_SD,
|
||||
CLK_TYPE_GEN3_R,
|
||||
CLK_TYPE_GEN3_PE,
|
||||
};
|
||||
|
||||
#define DEF_GEN3_SD(_name, _id, _parent, _offset) \
|
||||
DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset)
|
||||
|
||||
#define DEF_GEN3_PE(_name, _id, _parent_sscg, _div_sscg, _parent_clean, \
|
||||
_div_clean) \
|
||||
DEF_BASE(_name, _id, CLK_TYPE_GEN3_PE, \
|
||||
(_parent_sscg) << 16 | (_parent_clean), \
|
||||
.div = (_div_sscg) << 16 | (_div_clean))
|
||||
|
||||
struct rcar_gen3_cpg_pll_config {
|
||||
unsigned int extal_div;
|
||||
unsigned int pll1_mult;
|
||||
unsigned int pll3_mult;
|
||||
u8 extal_div;
|
||||
u8 pll1_mult;
|
||||
u8 pll1_div;
|
||||
u8 pll3_mult;
|
||||
u8 pll3_div;
|
||||
};
|
||||
|
||||
#define CPG_RCKCR 0x240
|
||||
|
|
|
@ -0,0 +1,188 @@
|
|||
/*
|
||||
* Renesas R-Car USB2.0 clock selector
|
||||
*
|
||||
* Copyright (C) 2017 Renesas Electronics Corp.
|
||||
*
|
||||
* Based on renesas-cpg-mssr.c
|
||||
*
|
||||
* Copyright (C) 2015 Glider bvba
|
||||
*
|
||||
* 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/clk.h>
|
||||
#include <linux/clk-provider.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of_device.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/pm.h>
|
||||
#include <linux/pm_runtime.h>
|
||||
#include <linux/slab.h>
|
||||
|
||||
#define USB20_CLKSET0 0x00
|
||||
#define CLKSET0_INTCLK_EN BIT(11)
|
||||
#define CLKSET0_PRIVATE BIT(0)
|
||||
#define CLKSET0_EXTAL_ONLY (CLKSET0_INTCLK_EN | CLKSET0_PRIVATE)
|
||||
|
||||
struct usb2_clock_sel_priv {
|
||||
void __iomem *base;
|
||||
struct clk_hw hw;
|
||||
bool extal;
|
||||
bool xtal;
|
||||
};
|
||||
#define to_priv(_hw) container_of(_hw, struct usb2_clock_sel_priv, hw)
|
||||
|
||||
static void usb2_clock_sel_enable_extal_only(struct usb2_clock_sel_priv *priv)
|
||||
{
|
||||
u16 val = readw(priv->base + USB20_CLKSET0);
|
||||
|
||||
pr_debug("%s: enter %d %d %x\n", __func__,
|
||||
priv->extal, priv->xtal, val);
|
||||
|
||||
if (priv->extal && !priv->xtal && val != CLKSET0_EXTAL_ONLY)
|
||||
writew(CLKSET0_EXTAL_ONLY, priv->base + USB20_CLKSET0);
|
||||
}
|
||||
|
||||
static void usb2_clock_sel_disable_extal_only(struct usb2_clock_sel_priv *priv)
|
||||
{
|
||||
if (priv->extal && !priv->xtal)
|
||||
writew(CLKSET0_PRIVATE, priv->base + USB20_CLKSET0);
|
||||
}
|
||||
|
||||
static int usb2_clock_sel_enable(struct clk_hw *hw)
|
||||
{
|
||||
usb2_clock_sel_enable_extal_only(to_priv(hw));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void usb2_clock_sel_disable(struct clk_hw *hw)
|
||||
{
|
||||
usb2_clock_sel_disable_extal_only(to_priv(hw));
|
||||
}
|
||||
|
||||
/*
|
||||
* This module seems a mux, but this driver assumes a gate because
|
||||
* ehci/ohci platform drivers don't support clk_set_parent() for now.
|
||||
* If this driver acts as a gate, ehci/ohci-platform drivers don't need
|
||||
* any modification.
|
||||
*/
|
||||
static const struct clk_ops usb2_clock_sel_clock_ops = {
|
||||
.enable = usb2_clock_sel_enable,
|
||||
.disable = usb2_clock_sel_disable,
|
||||
};
|
||||
|
||||
static const struct of_device_id rcar_usb2_clock_sel_match[] = {
|
||||
{ .compatible = "renesas,rcar-gen3-usb2-clock-sel" },
|
||||
{ }
|
||||
};
|
||||
|
||||
static int rcar_usb2_clock_sel_suspend(struct device *dev)
|
||||
{
|
||||
struct usb2_clock_sel_priv *priv = dev_get_drvdata(dev);
|
||||
|
||||
usb2_clock_sel_disable_extal_only(priv);
|
||||
pm_runtime_put(dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rcar_usb2_clock_sel_resume(struct device *dev)
|
||||
{
|
||||
struct usb2_clock_sel_priv *priv = dev_get_drvdata(dev);
|
||||
|
||||
pm_runtime_get_sync(dev);
|
||||
usb2_clock_sel_enable_extal_only(priv);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rcar_usb2_clock_sel_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct usb2_clock_sel_priv *priv = platform_get_drvdata(pdev);
|
||||
|
||||
of_clk_del_provider(dev->of_node);
|
||||
clk_hw_unregister(&priv->hw);
|
||||
pm_runtime_put(dev);
|
||||
pm_runtime_disable(dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rcar_usb2_clock_sel_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct device_node *np = dev->of_node;
|
||||
struct usb2_clock_sel_priv *priv;
|
||||
struct resource *res;
|
||||
struct clk *clk;
|
||||
struct clk_init_data init;
|
||||
|
||||
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
priv->base = devm_ioremap_resource(dev, res);
|
||||
if (IS_ERR(priv->base))
|
||||
return PTR_ERR(priv->base);
|
||||
|
||||
pm_runtime_enable(dev);
|
||||
pm_runtime_get_sync(dev);
|
||||
|
||||
clk = devm_clk_get(dev, "usb_extal");
|
||||
if (!IS_ERR(clk) && !clk_prepare_enable(clk)) {
|
||||
priv->extal = !!clk_get_rate(clk);
|
||||
clk_disable_unprepare(clk);
|
||||
}
|
||||
clk = devm_clk_get(dev, "usb_xtal");
|
||||
if (!IS_ERR(clk) && !clk_prepare_enable(clk)) {
|
||||
priv->xtal = !!clk_get_rate(clk);
|
||||
clk_disable_unprepare(clk);
|
||||
}
|
||||
|
||||
if (!priv->extal && !priv->xtal) {
|
||||
dev_err(dev, "This driver needs usb_extal or usb_xtal\n");
|
||||
return -ENOENT;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, priv);
|
||||
dev_set_drvdata(dev, priv);
|
||||
|
||||
init.name = "rcar_usb2_clock_sel";
|
||||
init.ops = &usb2_clock_sel_clock_ops;
|
||||
init.flags = 0;
|
||||
init.parent_names = NULL;
|
||||
init.num_parents = 0;
|
||||
priv->hw.init = &init;
|
||||
|
||||
clk = clk_register(NULL, &priv->hw);
|
||||
if (IS_ERR(clk))
|
||||
return PTR_ERR(clk);
|
||||
|
||||
return of_clk_add_hw_provider(np, of_clk_hw_simple_get, &priv->hw);
|
||||
}
|
||||
|
||||
static const struct dev_pm_ops rcar_usb2_clock_sel_pm_ops = {
|
||||
.suspend = rcar_usb2_clock_sel_suspend,
|
||||
.resume = rcar_usb2_clock_sel_resume,
|
||||
};
|
||||
|
||||
static struct platform_driver rcar_usb2_clock_sel_driver = {
|
||||
.driver = {
|
||||
.name = "rcar-usb2-clock-sel",
|
||||
.of_match_table = rcar_usb2_clock_sel_match,
|
||||
.pm = &rcar_usb2_clock_sel_pm_ops,
|
||||
},
|
||||
.probe = rcar_usb2_clock_sel_probe,
|
||||
.remove = rcar_usb2_clock_sel_remove,
|
||||
};
|
||||
builtin_platform_driver(rcar_usb2_clock_sel_driver);
|
||||
|
||||
MODULE_DESCRIPTION("Renesas R-Car USB2 clock selector Driver");
|
||||
MODULE_LICENSE("GPL v2");
|
|
@ -679,6 +679,12 @@ static const struct of_device_id cpg_mssr_match[] = {
|
|||
.compatible = "renesas,r8a7796-cpg-mssr",
|
||||
.data = &r8a7796_cpg_mssr_info,
|
||||
},
|
||||
#endif
|
||||
#ifdef CONFIG_CLK_R8A77995
|
||||
{
|
||||
.compatible = "renesas,r8a77995-cpg-mssr",
|
||||
.data = &r8a77995_cpg_mssr_info,
|
||||
},
|
||||
#endif
|
||||
{ /* sentinel */ }
|
||||
};
|
||||
|
|
|
@ -138,6 +138,7 @@ extern const struct cpg_mssr_info r8a7792_cpg_mssr_info;
|
|||
extern const struct cpg_mssr_info r8a7794_cpg_mssr_info;
|
||||
extern const struct cpg_mssr_info r8a7795_cpg_mssr_info;
|
||||
extern const struct cpg_mssr_info r8a7796_cpg_mssr_info;
|
||||
extern const struct cpg_mssr_info r8a77995_cpg_mssr_info;
|
||||
|
||||
|
||||
/*
|
||||
|
|
|
@ -0,0 +1,57 @@
|
|||
/*
|
||||
* Copyright (C) 2017 Glider bvba
|
||||
*
|
||||
* 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, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
#ifndef __DT_BINDINGS_CLOCK_R8A77995_CPG_MSSR_H__
|
||||
#define __DT_BINDINGS_CLOCK_R8A77995_CPG_MSSR_H__
|
||||
|
||||
#include <dt-bindings/clock/renesas-cpg-mssr.h>
|
||||
|
||||
/* r8a77995 CPG Core Clocks */
|
||||
#define R8A77995_CLK_Z2 0
|
||||
#define R8A77995_CLK_ZG 1
|
||||
#define R8A77995_CLK_ZTR 2
|
||||
#define R8A77995_CLK_ZT 3
|
||||
#define R8A77995_CLK_ZX 4
|
||||
#define R8A77995_CLK_S0D1 5
|
||||
#define R8A77995_CLK_S1D1 6
|
||||
#define R8A77995_CLK_S1D2 7
|
||||
#define R8A77995_CLK_S1D4 8
|
||||
#define R8A77995_CLK_S2D1 9
|
||||
#define R8A77995_CLK_S2D2 10
|
||||
#define R8A77995_CLK_S2D4 11
|
||||
#define R8A77995_CLK_S3D1 12
|
||||
#define R8A77995_CLK_S3D2 13
|
||||
#define R8A77995_CLK_S3D4 14
|
||||
#define R8A77995_CLK_S1D4C 15
|
||||
#define R8A77995_CLK_S3D1C 16
|
||||
#define R8A77995_CLK_S3D2C 17
|
||||
#define R8A77995_CLK_S3D4C 18
|
||||
#define R8A77995_CLK_LB 19
|
||||
#define R8A77995_CLK_CL 20
|
||||
#define R8A77995_CLK_ZB3 21
|
||||
#define R8A77995_CLK_ZB3D2 22
|
||||
#define R8A77995_CLK_CR 23
|
||||
#define R8A77995_CLK_CRD2 24
|
||||
#define R8A77995_CLK_SD0H 25
|
||||
#define R8A77995_CLK_SD0 26
|
||||
#define R8A77995_CLK_SSP2 27
|
||||
#define R8A77995_CLK_SSP1 28
|
||||
#define R8A77995_CLK_RPC 29
|
||||
#define R8A77995_CLK_RPCD2 30
|
||||
#define R8A77995_CLK_ZA2 31
|
||||
#define R8A77995_CLK_ZA8 32
|
||||
#define R8A77995_CLK_Z2D 33
|
||||
#define R8A77995_CLK_CANFD 34
|
||||
#define R8A77995_CLK_MSO 35
|
||||
#define R8A77995_CLK_R 36
|
||||
#define R8A77995_CLK_OSC 37
|
||||
#define R8A77995_CLK_LV0 38
|
||||
#define R8A77995_CLK_LV1 39
|
||||
#define R8A77995_CLK_CP 40
|
||||
|
||||
#endif /* __DT_BINDINGS_CLOCK_R8A77995_CPG_MSSR_H__ */
|
Загрузка…
Ссылка в новой задаче