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linux/drivers/clk/berlin/bg2.c
Linus Torvalds 6419945e33 This time we have a good set of changes to the core framework that do some 
general cleanups, but nothing too major. The majority of the diff goes to
 two SoCs, Actions Semi and Qualcomm. A brand new driver is introduced for
 Actions Semi so it takes up some lines to add all the different types, and
 the Qualcomm diff is there because we add support for two SoCs and it's quite
 a bit of data.
 
 Otherwise the big driver updates are on TI Davinci and Amlogic platforms. And
 then the long tail of driver updates for various fixes and stuff follows
 after that.
 
 Core:
  - debugfs cleanups removing error checking and an unused provider API
  - Removal of a clk init typedef that isn't used
  - Usage of match_string() to simplify parent string name matching
  - OF clk helpers moved to their own file (linux/of_clk.h)
  - Make clk warnings more readable across kernel versions
 
 New Drivers:
  - Qualcomm SDM845 GCC and Video clk controllers
  - Qualcomm MSM8998 GCC
  - Actions Semi S900 SoC support
  - Nuvoton npcm750 microcontroller clks
  - Amlogic axg AO clock controller
 
 Removed Drivers:
  - Deprecated Rockchip clk-gate driver
 
 Updates:
  - debugfs functions stopped checking return values
  - Support for the MSIOF module clocks on Rensas R-Car M3-N
  - Support for the new Rensas RZ/G1C and R-Car E3 SoCs
  - Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs
  - Berlin and Amlogic SPDX tagging
  - Usage of of_clk_get_parent_count() in more places
  - Proper implementation of the CDEV1/2 clocks on Tegra20
  - Allwinner H6 PRCM clock support and R40 EMAC support
  - Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet
  - Round closest support for meson's mpll driver
  - Support for meson8b nand clocks and gxbb video decoder clocks
  - Mediatek mali clks
  - STM32MP1 fixes
  - Uniphier LD11/LD20 stream demux system clock
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This time we have a good set of changes to the core framework that do
  some general cleanups, but nothing too major. The majority of the diff
  goes to two SoCs, Actions Semi and Qualcomm. A brand new driver is
  introduced for Actions Semi so it takes up some lines to add all the
  different types, and the Qualcomm diff is there because we add support
  for two SoCs and it's quite a bit of data.

  Otherwise the big driver updates are on TI Davinci and Amlogic
  platforms. And then the long tail of driver updates for various fixes
  and stuff follows after that.

  Core:
   - debugfs cleanups removing error checking and an unused provider API
   - Removal of a clk init typedef that isn't used
   - Usage of match_string() to simplify parent string name matching
   - OF clk helpers moved to their own file (linux/of_clk.h)
   - Make clk warnings more readable across kernel versions

  New Drivers:
   - Qualcomm SDM845 GCC and Video clk controllers
   - Qualcomm MSM8998 GCC
   - Actions Semi S900 SoC support
   - Nuvoton npcm750 microcontroller clks
   - Amlogic axg AO clock controller

  Removed Drivers:
   - Deprecated Rockchip clk-gate driver

  Updates:
   - debugfs functions stopped checking return values
   - Support for the MSIOF module clocks on Rensas R-Car M3-N
   - Support for the new Rensas RZ/G1C and R-Car E3 SoCs
   - Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs
   - Berlin and Amlogic SPDX tagging
   - Usage of of_clk_get_parent_count() in more places
   - Proper implementation of the CDEV1/2 clocks on Tegra20
   - Allwinner H6 PRCM clock support and R40 EMAC support
   - Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet
   - Round closest support for meson's mpll driver
   - Support for meson8b nand clocks and gxbb video decoder clocks
   - Mediatek mali clks
   - STM32MP1 fixes
   - Uniphier LD11/LD20 stream demux system clock"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (134 commits)
  clk: qcom: Export clk_fabia_pll_configure()
  clk: bcm: Update and add Stingray clock entries
  dt-bindings: clk: Update Stingray binding doc
  clk-si544: Properly round requested frequency to nearest match
  clk: ingenic: jz4770: Add 150us delay after enabling VPU clock
  clk: ingenic: jz4770: Enable power of AHB1 bus after ungating VPU clock
  clk: ingenic: jz4770: Modify C1CLK clock to disable CPU clock stop on idle
  clk: ingenic: jz4770: Change OTG from custom to standard gated clock
  clk: ingenic: Support specifying "wait for clock stable" delay
  clk: ingenic: Add support for clocks whose gate bit is inverted
  clk: use match_string() helper
  clk: bcm2835: use match_string() helper
  clk: Return void from debug_init op
  clk: remove clk_debugfs_add_file()
  clk: tegra: no need to check return value of debugfs_create functions
  clk: davinci: no need to check return value of debugfs_create functions
  clk: bcm2835: no need to check return value of debugfs_create functions
  clk: no need to check return value of debugfs_create functions
  clk: imx6: add EPIT clock support
  clk: mvebu: use correct bit for 98DX3236 NAND
  ...
2018-06-09 12:06:24 -07:00

684 lines
19 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2014 Marvell Technology Group Ltd.
*
* Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
* Alexandre Belloni <alexandre.belloni@free-electrons.com>
*/
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/slab.h>
#include <dt-bindings/clock/berlin2.h>
#include "berlin2-avpll.h"
#include "berlin2-div.h"
#include "berlin2-pll.h"
#include "common.h"
#define REG_PINMUX0 0x0000
#define REG_PINMUX1 0x0004
#define REG_SYSPLLCTL0 0x0014
#define REG_SYSPLLCTL4 0x0024
#define REG_MEMPLLCTL0 0x0028
#define REG_MEMPLLCTL4 0x0038
#define REG_CPUPLLCTL0 0x003c
#define REG_CPUPLLCTL4 0x004c
#define REG_AVPLLCTL0 0x0050
#define REG_AVPLLCTL31 0x00cc
#define REG_AVPLLCTL62 0x0148
#define REG_PLLSTATUS 0x014c
#define REG_CLKENABLE 0x0150
#define REG_CLKSELECT0 0x0154
#define REG_CLKSELECT1 0x0158
#define REG_CLKSELECT2 0x015c
#define REG_CLKSELECT3 0x0160
#define REG_CLKSWITCH0 0x0164
#define REG_CLKSWITCH1 0x0168
#define REG_RESET_TRIGGER 0x0178
#define REG_RESET_STATUS0 0x017c
#define REG_RESET_STATUS1 0x0180
#define REG_SW_GENERIC0 0x0184
#define REG_SW_GENERIC3 0x0190
#define REG_PRODUCTID 0x01cc
#define REG_PRODUCTID_EXT 0x01d0
#define REG_GFX3DCORE_CLKCTL 0x022c
#define REG_GFX3DSYS_CLKCTL 0x0230
#define REG_ARC_CLKCTL 0x0234
#define REG_VIP_CLKCTL 0x0238
#define REG_SDIO0XIN_CLKCTL 0x023c
#define REG_SDIO1XIN_CLKCTL 0x0240
#define REG_GFX3DEXTRA_CLKCTL 0x0244
#define REG_GFX3D_RESET 0x0248
#define REG_GC360_CLKCTL 0x024c
#define REG_SDIO_DLLMST_CLKCTL 0x0250
/*
* BG2/BG2CD SoCs have the following audio/video I/O units:
*
* audiohd: HDMI TX audio
* audio0: 7.1ch TX
* audio1: 2ch TX
* audio2: 2ch RX
* audio3: SPDIF TX
* video0: HDMI video
* video1: Secondary video
* video2: SD auxiliary video
*
* There are no external audio clocks (ACLKI0, ACLKI1) and
* only one external video clock (VCLKI0).
*
* Currently missing bits and pieces:
* - audio_fast_pll is unknown
* - audiohd_pll is unknown
* - video0_pll is unknown
* - audio[023], audiohd parent pll is assumed to be audio_fast_pll
*
*/
#define MAX_CLKS 41
static struct clk_hw_onecell_data *clk_data;
static DEFINE_SPINLOCK(lock);
static void __iomem *gbase;
enum {
REFCLK, VIDEO_EXT0,
SYSPLL, MEMPLL, CPUPLL,
AVPLL_A1, AVPLL_A2, AVPLL_A3, AVPLL_A4,
AVPLL_A5, AVPLL_A6, AVPLL_A7, AVPLL_A8,
AVPLL_B1, AVPLL_B2, AVPLL_B3, AVPLL_B4,
AVPLL_B5, AVPLL_B6, AVPLL_B7, AVPLL_B8,
AUDIO1_PLL, AUDIO_FAST_PLL,
VIDEO0_PLL, VIDEO0_IN,
VIDEO1_PLL, VIDEO1_IN,
VIDEO2_PLL, VIDEO2_IN,
};
static const char *clk_names[] = {
[REFCLK] = "refclk",
[VIDEO_EXT0] = "video_ext0",
[SYSPLL] = "syspll",
[MEMPLL] = "mempll",
[CPUPLL] = "cpupll",
[AVPLL_A1] = "avpll_a1",
[AVPLL_A2] = "avpll_a2",
[AVPLL_A3] = "avpll_a3",
[AVPLL_A4] = "avpll_a4",
[AVPLL_A5] = "avpll_a5",
[AVPLL_A6] = "avpll_a6",
[AVPLL_A7] = "avpll_a7",
[AVPLL_A8] = "avpll_a8",
[AVPLL_B1] = "avpll_b1",
[AVPLL_B2] = "avpll_b2",
[AVPLL_B3] = "avpll_b3",
[AVPLL_B4] = "avpll_b4",
[AVPLL_B5] = "avpll_b5",
[AVPLL_B6] = "avpll_b6",
[AVPLL_B7] = "avpll_b7",
[AVPLL_B8] = "avpll_b8",
[AUDIO1_PLL] = "audio1_pll",
[AUDIO_FAST_PLL] = "audio_fast_pll",
[VIDEO0_PLL] = "video0_pll",
[VIDEO0_IN] = "video0_in",
[VIDEO1_PLL] = "video1_pll",
[VIDEO1_IN] = "video1_in",
[VIDEO2_PLL] = "video2_pll",
[VIDEO2_IN] = "video2_in",
};
static const struct berlin2_pll_map bg2_pll_map __initconst = {
.vcodiv = {10, 15, 20, 25, 30, 40, 50, 60, 80},
.mult = 10,
.fbdiv_shift = 6,
.rfdiv_shift = 1,
.divsel_shift = 7,
};
static const u8 default_parent_ids[] = {
SYSPLL, AVPLL_B4, AVPLL_A5, AVPLL_B6, AVPLL_B7, SYSPLL
};
static const struct berlin2_div_data bg2_divs[] __initconst = {
{
.name = "sys",
.parent_ids = (const u8 []){
SYSPLL, AVPLL_B4, AVPLL_B5, AVPLL_B6, AVPLL_B7, SYSPLL
},
.num_parents = 6,
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 0),
BERLIN2_PLL_SELECT(REG_CLKSELECT0, 0),
BERLIN2_DIV_SELECT(REG_CLKSELECT0, 3),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 3),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 4),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 5),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = CLK_IGNORE_UNUSED,
},
{
.name = "cpu",
.parent_ids = (const u8 []){
CPUPLL, MEMPLL, MEMPLL, MEMPLL, MEMPLL
},
.num_parents = 5,
.map = {
BERLIN2_PLL_SELECT(REG_CLKSELECT0, 6),
BERLIN2_DIV_SELECT(REG_CLKSELECT0, 9),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 6),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 7),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 8),
},
.div_flags = BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "drmfigo",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 16),
BERLIN2_PLL_SELECT(REG_CLKSELECT0, 17),
BERLIN2_DIV_SELECT(REG_CLKSELECT0, 20),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 12),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 13),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 14),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "cfg",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 1),
BERLIN2_PLL_SELECT(REG_CLKSELECT0, 23),
BERLIN2_DIV_SELECT(REG_CLKSELECT0, 26),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 15),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 16),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 17),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "gfx",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 4),
BERLIN2_PLL_SELECT(REG_CLKSELECT0, 29),
BERLIN2_DIV_SELECT(REG_CLKSELECT1, 0),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 18),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 19),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 20),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "zsp",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 5),
BERLIN2_PLL_SELECT(REG_CLKSELECT1, 3),
BERLIN2_DIV_SELECT(REG_CLKSELECT1, 6),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 21),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 22),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 23),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "perif",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 6),
BERLIN2_PLL_SELECT(REG_CLKSELECT1, 9),
BERLIN2_DIV_SELECT(REG_CLKSELECT1, 12),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 24),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 25),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 26),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = CLK_IGNORE_UNUSED,
},
{
.name = "pcube",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 2),
BERLIN2_PLL_SELECT(REG_CLKSELECT1, 15),
BERLIN2_DIV_SELECT(REG_CLKSELECT1, 18),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 27),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 28),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 29),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "vscope",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 3),
BERLIN2_PLL_SELECT(REG_CLKSELECT1, 21),
BERLIN2_DIV_SELECT(REG_CLKSELECT1, 24),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 30),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 31),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 0),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "nfc_ecc",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 18),
BERLIN2_PLL_SELECT(REG_CLKSELECT1, 27),
BERLIN2_DIV_SELECT(REG_CLKSELECT2, 0),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 1),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 2),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 3),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "vpp",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 21),
BERLIN2_PLL_SELECT(REG_CLKSELECT2, 3),
BERLIN2_DIV_SELECT(REG_CLKSELECT2, 6),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 4),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 5),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 6),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "app",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 20),
BERLIN2_PLL_SELECT(REG_CLKSELECT2, 9),
BERLIN2_DIV_SELECT(REG_CLKSELECT2, 12),
BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 7),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 8),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 9),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "audio0",
.parent_ids = (const u8 []){ AUDIO_FAST_PLL },
.num_parents = 1,
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 22),
BERLIN2_DIV_SELECT(REG_CLKSELECT2, 17),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 10),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 11),
},
.div_flags = BERLIN2_DIV_HAS_GATE,
.flags = 0,
},
{
.name = "audio2",
.parent_ids = (const u8 []){ AUDIO_FAST_PLL },
.num_parents = 1,
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 24),
BERLIN2_DIV_SELECT(REG_CLKSELECT2, 20),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 14),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 15),
},
.div_flags = BERLIN2_DIV_HAS_GATE,
.flags = 0,
},
{
.name = "audio3",
.parent_ids = (const u8 []){ AUDIO_FAST_PLL },
.num_parents = 1,
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 25),
BERLIN2_DIV_SELECT(REG_CLKSELECT2, 23),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 16),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 17),
},
.div_flags = BERLIN2_DIV_HAS_GATE,
.flags = 0,
},
{
.name = "audio1",
.parent_ids = (const u8 []){ AUDIO1_PLL },
.num_parents = 1,
.map = {
BERLIN2_DIV_GATE(REG_CLKENABLE, 23),
BERLIN2_DIV_SELECT(REG_CLKSELECT3, 0),
BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 12),
BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 13),
},
.div_flags = BERLIN2_DIV_HAS_GATE,
.flags = 0,
},
{
.name = "gfx3d_core",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_SINGLE_DIV(REG_GFX3DCORE_CLKCTL),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "gfx3d_sys",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_SINGLE_DIV(REG_GFX3DSYS_CLKCTL),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "arc",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_SINGLE_DIV(REG_ARC_CLKCTL),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "vip",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_SINGLE_DIV(REG_VIP_CLKCTL),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "sdio0xin",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_SINGLE_DIV(REG_SDIO0XIN_CLKCTL),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "sdio1xin",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_SINGLE_DIV(REG_SDIO1XIN_CLKCTL),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "gfx3d_extra",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_SINGLE_DIV(REG_GFX3DEXTRA_CLKCTL),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "gc360",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_SINGLE_DIV(REG_GC360_CLKCTL),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
{
.name = "sdio_dllmst",
.parent_ids = default_parent_ids,
.num_parents = ARRAY_SIZE(default_parent_ids),
.map = {
BERLIN2_SINGLE_DIV(REG_SDIO_DLLMST_CLKCTL),
},
.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
.flags = 0,
},
};
static const struct berlin2_gate_data bg2_gates[] __initconst = {
{ "geth0", "perif", 7 },
{ "geth1", "perif", 8 },
{ "sata", "perif", 9 },
{ "ahbapb", "perif", 10, CLK_IGNORE_UNUSED },
{ "usb0", "perif", 11 },
{ "usb1", "perif", 12 },
{ "pbridge", "perif", 13, CLK_IGNORE_UNUSED },
{ "sdio0", "perif", 14 },
{ "sdio1", "perif", 15 },
{ "nfc", "perif", 17 },
{ "smemc", "perif", 19 },
{ "audiohd", "audiohd_pll", 26 },
{ "video0", "video0_in", 27 },
{ "video1", "video1_in", 28 },
{ "video2", "video2_in", 29 },
};
static void __init berlin2_clock_setup(struct device_node *np)
{
struct device_node *parent_np = of_get_parent(np);
const char *parent_names[9];
struct clk *clk;
struct clk_hw *hw;
struct clk_hw **hws;
u8 avpll_flags = 0;
int n, ret;
clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL);
if (!clk_data)
return;
clk_data->num = MAX_CLKS;
hws = clk_data->hws;
gbase = of_iomap(parent_np, 0);
if (!gbase)
return;
/* overwrite default clock names with DT provided ones */
clk = of_clk_get_by_name(np, clk_names[REFCLK]);
if (!IS_ERR(clk)) {
clk_names[REFCLK] = __clk_get_name(clk);
clk_put(clk);
}
clk = of_clk_get_by_name(np, clk_names[VIDEO_EXT0]);
if (!IS_ERR(clk)) {
clk_names[VIDEO_EXT0] = __clk_get_name(clk);
clk_put(clk);
}
/* simple register PLLs */
ret = berlin2_pll_register(&bg2_pll_map, gbase + REG_SYSPLLCTL0,
clk_names[SYSPLL], clk_names[REFCLK], 0);
if (ret)
goto bg2_fail;
ret = berlin2_pll_register(&bg2_pll_map, gbase + REG_MEMPLLCTL0,
clk_names[MEMPLL], clk_names[REFCLK], 0);
if (ret)
goto bg2_fail;
ret = berlin2_pll_register(&bg2_pll_map, gbase + REG_CPUPLLCTL0,
clk_names[CPUPLL], clk_names[REFCLK], 0);
if (ret)
goto bg2_fail;
if (of_device_is_compatible(np, "marvell,berlin2-global-register"))
avpll_flags |= BERLIN2_AVPLL_SCRAMBLE_QUIRK;
/* audio/video VCOs */
ret = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL0, "avpll_vcoA",
clk_names[REFCLK], avpll_flags, 0);
if (ret)
goto bg2_fail;
for (n = 0; n < 8; n++) {
ret = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL0,
clk_names[AVPLL_A1 + n], n, "avpll_vcoA",
avpll_flags, 0);
if (ret)
goto bg2_fail;
}
ret = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL31, "avpll_vcoB",
clk_names[REFCLK], BERLIN2_AVPLL_BIT_QUIRK |
avpll_flags, 0);
if (ret)
goto bg2_fail;
for (n = 0; n < 8; n++) {
ret = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL31,
clk_names[AVPLL_B1 + n], n, "avpll_vcoB",
BERLIN2_AVPLL_BIT_QUIRK | avpll_flags, 0);
if (ret)
goto bg2_fail;
}
/* reference clock bypass switches */
parent_names[0] = clk_names[SYSPLL];
parent_names[1] = clk_names[REFCLK];
hw = clk_hw_register_mux(NULL, "syspll_byp", parent_names, 2,
0, gbase + REG_CLKSWITCH0, 0, 1, 0, &lock);
if (IS_ERR(hw))
goto bg2_fail;
clk_names[SYSPLL] = clk_hw_get_name(hw);
parent_names[0] = clk_names[MEMPLL];
parent_names[1] = clk_names[REFCLK];
hw = clk_hw_register_mux(NULL, "mempll_byp", parent_names, 2,
0, gbase + REG_CLKSWITCH0, 1, 1, 0, &lock);
if (IS_ERR(hw))
goto bg2_fail;
clk_names[MEMPLL] = clk_hw_get_name(hw);
parent_names[0] = clk_names[CPUPLL];
parent_names[1] = clk_names[REFCLK];
hw = clk_hw_register_mux(NULL, "cpupll_byp", parent_names, 2,
0, gbase + REG_CLKSWITCH0, 2, 1, 0, &lock);
if (IS_ERR(hw))
goto bg2_fail;
clk_names[CPUPLL] = clk_hw_get_name(hw);
/* clock muxes */
parent_names[0] = clk_names[AVPLL_B3];
parent_names[1] = clk_names[AVPLL_A3];
hw = clk_hw_register_mux(NULL, clk_names[AUDIO1_PLL], parent_names, 2,
0, gbase + REG_CLKSELECT2, 29, 1, 0, &lock);
if (IS_ERR(hw))
goto bg2_fail;
parent_names[0] = clk_names[VIDEO0_PLL];
parent_names[1] = clk_names[VIDEO_EXT0];
hw = clk_hw_register_mux(NULL, clk_names[VIDEO0_IN], parent_names, 2,
0, gbase + REG_CLKSELECT3, 4, 1, 0, &lock);
if (IS_ERR(hw))
goto bg2_fail;
parent_names[0] = clk_names[VIDEO1_PLL];
parent_names[1] = clk_names[VIDEO_EXT0];
hw = clk_hw_register_mux(NULL, clk_names[VIDEO1_IN], parent_names, 2,
0, gbase + REG_CLKSELECT3, 6, 1, 0, &lock);
if (IS_ERR(hw))
goto bg2_fail;
parent_names[0] = clk_names[AVPLL_A2];
parent_names[1] = clk_names[AVPLL_B2];
hw = clk_hw_register_mux(NULL, clk_names[VIDEO1_PLL], parent_names, 2,
0, gbase + REG_CLKSELECT3, 7, 1, 0, &lock);
if (IS_ERR(hw))
goto bg2_fail;
parent_names[0] = clk_names[VIDEO2_PLL];
parent_names[1] = clk_names[VIDEO_EXT0];
hw = clk_hw_register_mux(NULL, clk_names[VIDEO2_IN], parent_names, 2,
0, gbase + REG_CLKSELECT3, 9, 1, 0, &lock);
if (IS_ERR(hw))
goto bg2_fail;
parent_names[0] = clk_names[AVPLL_B1];
parent_names[1] = clk_names[AVPLL_A5];
hw = clk_hw_register_mux(NULL, clk_names[VIDEO2_PLL], parent_names, 2,
0, gbase + REG_CLKSELECT3, 10, 1, 0, &lock);
if (IS_ERR(hw))
goto bg2_fail;
/* clock divider cells */
for (n = 0; n < ARRAY_SIZE(bg2_divs); n++) {
const struct berlin2_div_data *dd = &bg2_divs[n];
int k;
for (k = 0; k < dd->num_parents; k++)
parent_names[k] = clk_names[dd->parent_ids[k]];
hws[CLKID_SYS + n] = berlin2_div_register(&dd->map, gbase,
dd->name, dd->div_flags, parent_names,
dd->num_parents, dd->flags, &lock);
}
/* clock gate cells */
for (n = 0; n < ARRAY_SIZE(bg2_gates); n++) {
const struct berlin2_gate_data *gd = &bg2_gates[n];
hws[CLKID_GETH0 + n] = clk_hw_register_gate(NULL, gd->name,
gd->parent_name, gd->flags, gbase + REG_CLKENABLE,
gd->bit_idx, 0, &lock);
}
/* twdclk is derived from cpu/3 */
hws[CLKID_TWD] =
clk_hw_register_fixed_factor(NULL, "twd", "cpu", 0, 1, 3);
/* check for errors on leaf clocks */
for (n = 0; n < MAX_CLKS; n++) {
if (!IS_ERR(hws[n]))
continue;
pr_err("%pOF: Unable to register leaf clock %d\n", np, n);
goto bg2_fail;
}
/* register clk-provider */
of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
return;
bg2_fail:
iounmap(gbase);
}
CLK_OF_DECLARE(berlin2_clk, "marvell,berlin2-clk",
berlin2_clock_setup);
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