Release 4.11 drivers/clk/berlin/bg2.c
/*
* Copyright (c) 2014 Marvell Technology Group Ltd.
*
* Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
* Alexandre Belloni <alexandre.belloni@free-electrons.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#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(sizeof(*clk_data) +
sizeof(*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("%s: Unable to register leaf clock %d\n",
np->full_name, 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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sebastian Hesselbarth | 1148 | 90.54% | 1 | 25.00% |
| Stephen Boyd | 109 | 8.60% | 1 | 25.00% |
| Antoine Ténart | 11 | 0.87% | 2 | 50.00% |
| Total | 1268 | 100.00% | 4 | 100.00% |
CLK_OF_DECLARE(berlin2_clk, "marvell,berlin2-clk",
berlin2_clock_setup);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sebastian Hesselbarth | 3420 | 96.37% | 1 | 25.00% |
| Stephen Boyd | 111 | 3.13% | 1 | 25.00% |
| Antoine Ténart | 18 | 0.51% | 2 | 50.00% |
| Total | 3549 | 100.00% | 4 | 100.00% |
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