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linux_dsm_epyc7002/drivers/clk/meson/gxbb.c
Neil Armstrong e194401cf4 clk: meson-gxbb: Add GP0 PLL init parameters 
Tha Amlogic GXBB SoC GP0 PLL needs some vendor provided parameters to be
initializated in the the GP0 control registers before configuring the rate
with the rate table provided parameters.

GXBB GP0 PLL tweaks are also selected to respect the vendor init procedure.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1490178747-14837-3-git-send-email-narmstrong@baylibre.com
2017-04-04 12:05:13 -07:00

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33 KiB
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/*
* AmLogic S905 / GXBB Clock Controller Driver
*
* Copyright (c) 2016 AmLogic, Inc.
* Michael Turquette <mturquette@baylibre.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/of_address.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include "clkc.h"
#include "gxbb.h"
static DEFINE_SPINLOCK(clk_lock);
static const struct pll_rate_table sys_pll_rate_table[] = {
PLL_RATE(24000000, 56, 1, 2),
PLL_RATE(48000000, 64, 1, 2),
PLL_RATE(72000000, 72, 1, 2),
PLL_RATE(96000000, 64, 1, 2),
PLL_RATE(120000000, 80, 1, 2),
PLL_RATE(144000000, 96, 1, 2),
PLL_RATE(168000000, 56, 1, 1),
PLL_RATE(192000000, 64, 1, 1),
PLL_RATE(216000000, 72, 1, 1),
PLL_RATE(240000000, 80, 1, 1),
PLL_RATE(264000000, 88, 1, 1),
PLL_RATE(288000000, 96, 1, 1),
PLL_RATE(312000000, 52, 1, 2),
PLL_RATE(336000000, 56, 1, 2),
PLL_RATE(360000000, 60, 1, 2),
PLL_RATE(384000000, 64, 1, 2),
PLL_RATE(408000000, 68, 1, 2),
PLL_RATE(432000000, 72, 1, 2),
PLL_RATE(456000000, 76, 1, 2),
PLL_RATE(480000000, 80, 1, 2),
PLL_RATE(504000000, 84, 1, 2),
PLL_RATE(528000000, 88, 1, 2),
PLL_RATE(552000000, 92, 1, 2),
PLL_RATE(576000000, 96, 1, 2),
PLL_RATE(600000000, 50, 1, 1),
PLL_RATE(624000000, 52, 1, 1),
PLL_RATE(648000000, 54, 1, 1),
PLL_RATE(672000000, 56, 1, 1),
PLL_RATE(696000000, 58, 1, 1),
PLL_RATE(720000000, 60, 1, 1),
PLL_RATE(744000000, 62, 1, 1),
PLL_RATE(768000000, 64, 1, 1),
PLL_RATE(792000000, 66, 1, 1),
PLL_RATE(816000000, 68, 1, 1),
PLL_RATE(840000000, 70, 1, 1),
PLL_RATE(864000000, 72, 1, 1),
PLL_RATE(888000000, 74, 1, 1),
PLL_RATE(912000000, 76, 1, 1),
PLL_RATE(936000000, 78, 1, 1),
PLL_RATE(960000000, 80, 1, 1),
PLL_RATE(984000000, 82, 1, 1),
PLL_RATE(1008000000, 84, 1, 1),
PLL_RATE(1032000000, 86, 1, 1),
PLL_RATE(1056000000, 88, 1, 1),
PLL_RATE(1080000000, 90, 1, 1),
PLL_RATE(1104000000, 92, 1, 1),
PLL_RATE(1128000000, 94, 1, 1),
PLL_RATE(1152000000, 96, 1, 1),
PLL_RATE(1176000000, 98, 1, 1),
PLL_RATE(1200000000, 50, 1, 0),
PLL_RATE(1224000000, 51, 1, 0),
PLL_RATE(1248000000, 52, 1, 0),
PLL_RATE(1272000000, 53, 1, 0),
PLL_RATE(1296000000, 54, 1, 0),
PLL_RATE(1320000000, 55, 1, 0),
PLL_RATE(1344000000, 56, 1, 0),
PLL_RATE(1368000000, 57, 1, 0),
PLL_RATE(1392000000, 58, 1, 0),
PLL_RATE(1416000000, 59, 1, 0),
PLL_RATE(1440000000, 60, 1, 0),
PLL_RATE(1464000000, 61, 1, 0),
PLL_RATE(1488000000, 62, 1, 0),
PLL_RATE(1512000000, 63, 1, 0),
PLL_RATE(1536000000, 64, 1, 0),
PLL_RATE(1560000000, 65, 1, 0),
PLL_RATE(1584000000, 66, 1, 0),
PLL_RATE(1608000000, 67, 1, 0),
PLL_RATE(1632000000, 68, 1, 0),
PLL_RATE(1656000000, 68, 1, 0),
PLL_RATE(1680000000, 68, 1, 0),
PLL_RATE(1704000000, 68, 1, 0),
PLL_RATE(1728000000, 69, 1, 0),
PLL_RATE(1752000000, 69, 1, 0),
PLL_RATE(1776000000, 69, 1, 0),
PLL_RATE(1800000000, 69, 1, 0),
PLL_RATE(1824000000, 70, 1, 0),
PLL_RATE(1848000000, 70, 1, 0),
PLL_RATE(1872000000, 70, 1, 0),
PLL_RATE(1896000000, 70, 1, 0),
PLL_RATE(1920000000, 71, 1, 0),
PLL_RATE(1944000000, 71, 1, 0),
PLL_RATE(1968000000, 71, 1, 0),
PLL_RATE(1992000000, 71, 1, 0),
PLL_RATE(2016000000, 72, 1, 0),
PLL_RATE(2040000000, 72, 1, 0),
PLL_RATE(2064000000, 72, 1, 0),
PLL_RATE(2088000000, 72, 1, 0),
PLL_RATE(2112000000, 73, 1, 0),
{ /* sentinel */ },
};
static const struct pll_rate_table gp0_pll_rate_table[] = {
PLL_RATE(96000000, 32, 1, 3),
PLL_RATE(99000000, 33, 1, 3),
PLL_RATE(102000000, 34, 1, 3),
PLL_RATE(105000000, 35, 1, 3),
PLL_RATE(108000000, 36, 1, 3),
PLL_RATE(111000000, 37, 1, 3),
PLL_RATE(114000000, 38, 1, 3),
PLL_RATE(117000000, 39, 1, 3),
PLL_RATE(120000000, 40, 1, 3),
PLL_RATE(123000000, 41, 1, 3),
PLL_RATE(126000000, 42, 1, 3),
PLL_RATE(129000000, 43, 1, 3),
PLL_RATE(132000000, 44, 1, 3),
PLL_RATE(135000000, 45, 1, 3),
PLL_RATE(138000000, 46, 1, 3),
PLL_RATE(141000000, 47, 1, 3),
PLL_RATE(144000000, 48, 1, 3),
PLL_RATE(147000000, 49, 1, 3),
PLL_RATE(150000000, 50, 1, 3),
PLL_RATE(153000000, 51, 1, 3),
PLL_RATE(156000000, 52, 1, 3),
PLL_RATE(159000000, 53, 1, 3),
PLL_RATE(162000000, 54, 1, 3),
PLL_RATE(165000000, 55, 1, 3),
PLL_RATE(168000000, 56, 1, 3),
PLL_RATE(171000000, 57, 1, 3),
PLL_RATE(174000000, 58, 1, 3),
PLL_RATE(177000000, 59, 1, 3),
PLL_RATE(180000000, 60, 1, 3),
PLL_RATE(183000000, 61, 1, 3),
PLL_RATE(186000000, 62, 1, 3),
PLL_RATE(192000000, 32, 1, 2),
PLL_RATE(198000000, 33, 1, 2),
PLL_RATE(204000000, 34, 1, 2),
PLL_RATE(210000000, 35, 1, 2),
PLL_RATE(216000000, 36, 1, 2),
PLL_RATE(222000000, 37, 1, 2),
PLL_RATE(228000000, 38, 1, 2),
PLL_RATE(234000000, 39, 1, 2),
PLL_RATE(240000000, 40, 1, 2),
PLL_RATE(246000000, 41, 1, 2),
PLL_RATE(252000000, 42, 1, 2),
PLL_RATE(258000000, 43, 1, 2),
PLL_RATE(264000000, 44, 1, 2),
PLL_RATE(270000000, 45, 1, 2),
PLL_RATE(276000000, 46, 1, 2),
PLL_RATE(282000000, 47, 1, 2),
PLL_RATE(288000000, 48, 1, 2),
PLL_RATE(294000000, 49, 1, 2),
PLL_RATE(300000000, 50, 1, 2),
PLL_RATE(306000000, 51, 1, 2),
PLL_RATE(312000000, 52, 1, 2),
PLL_RATE(318000000, 53, 1, 2),
PLL_RATE(324000000, 54, 1, 2),
PLL_RATE(330000000, 55, 1, 2),
PLL_RATE(336000000, 56, 1, 2),
PLL_RATE(342000000, 57, 1, 2),
PLL_RATE(348000000, 58, 1, 2),
PLL_RATE(354000000, 59, 1, 2),
PLL_RATE(360000000, 60, 1, 2),
PLL_RATE(366000000, 61, 1, 2),
PLL_RATE(372000000, 62, 1, 2),
PLL_RATE(384000000, 32, 1, 1),
PLL_RATE(396000000, 33, 1, 1),
PLL_RATE(408000000, 34, 1, 1),
PLL_RATE(420000000, 35, 1, 1),
PLL_RATE(432000000, 36, 1, 1),
PLL_RATE(444000000, 37, 1, 1),
PLL_RATE(456000000, 38, 1, 1),
PLL_RATE(468000000, 39, 1, 1),
PLL_RATE(480000000, 40, 1, 1),
PLL_RATE(492000000, 41, 1, 1),
PLL_RATE(504000000, 42, 1, 1),
PLL_RATE(516000000, 43, 1, 1),
PLL_RATE(528000000, 44, 1, 1),
PLL_RATE(540000000, 45, 1, 1),
PLL_RATE(552000000, 46, 1, 1),
PLL_RATE(564000000, 47, 1, 1),
PLL_RATE(576000000, 48, 1, 1),
PLL_RATE(588000000, 49, 1, 1),
PLL_RATE(600000000, 50, 1, 1),
PLL_RATE(612000000, 51, 1, 1),
PLL_RATE(624000000, 52, 1, 1),
PLL_RATE(636000000, 53, 1, 1),
PLL_RATE(648000000, 54, 1, 1),
PLL_RATE(660000000, 55, 1, 1),
PLL_RATE(672000000, 56, 1, 1),
PLL_RATE(684000000, 57, 1, 1),
PLL_RATE(696000000, 58, 1, 1),
PLL_RATE(708000000, 59, 1, 1),
PLL_RATE(720000000, 60, 1, 1),
PLL_RATE(732000000, 61, 1, 1),
PLL_RATE(744000000, 62, 1, 1),
PLL_RATE(768000000, 32, 1, 0),
PLL_RATE(792000000, 33, 1, 0),
PLL_RATE(816000000, 34, 1, 0),
PLL_RATE(840000000, 35, 1, 0),
PLL_RATE(864000000, 36, 1, 0),
PLL_RATE(888000000, 37, 1, 0),
PLL_RATE(912000000, 38, 1, 0),
PLL_RATE(936000000, 39, 1, 0),
PLL_RATE(960000000, 40, 1, 0),
PLL_RATE(984000000, 41, 1, 0),
PLL_RATE(1008000000, 42, 1, 0),
PLL_RATE(1032000000, 43, 1, 0),
PLL_RATE(1056000000, 44, 1, 0),
PLL_RATE(1080000000, 45, 1, 0),
PLL_RATE(1104000000, 46, 1, 0),
PLL_RATE(1128000000, 47, 1, 0),
PLL_RATE(1152000000, 48, 1, 0),
PLL_RATE(1176000000, 49, 1, 0),
PLL_RATE(1200000000, 50, 1, 0),
PLL_RATE(1224000000, 51, 1, 0),
PLL_RATE(1248000000, 52, 1, 0),
PLL_RATE(1272000000, 53, 1, 0),
PLL_RATE(1296000000, 54, 1, 0),
PLL_RATE(1320000000, 55, 1, 0),
PLL_RATE(1344000000, 56, 1, 0),
PLL_RATE(1368000000, 57, 1, 0),
PLL_RATE(1392000000, 58, 1, 0),
PLL_RATE(1416000000, 59, 1, 0),
PLL_RATE(1440000000, 60, 1, 0),
PLL_RATE(1464000000, 61, 1, 0),
PLL_RATE(1488000000, 62, 1, 0),
{ /* sentinel */ },
};
static const struct clk_div_table cpu_div_table[] = {
{ .val = 1, .div = 1 },
{ .val = 2, .div = 2 },
{ .val = 3, .div = 3 },
{ .val = 2, .div = 4 },
{ .val = 3, .div = 6 },
{ .val = 4, .div = 8 },
{ .val = 5, .div = 10 },
{ .val = 6, .div = 12 },
{ .val = 7, .div = 14 },
{ .val = 8, .div = 16 },
{ /* sentinel */ },
};
static struct meson_clk_pll gxbb_fixed_pll = {
.m = {
.reg_off = HHI_MPLL_CNTL,
.shift = 0,
.width = 9,
},
.n = {
.reg_off = HHI_MPLL_CNTL,
.shift = 9,
.width = 5,
},
.od = {
.reg_off = HHI_MPLL_CNTL,
.shift = 16,
.width = 2,
},
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "fixed_pll",
.ops = &meson_clk_pll_ro_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
.flags = CLK_GET_RATE_NOCACHE,
},
};
static struct meson_clk_pll gxbb_hdmi_pll = {
.m = {
.reg_off = HHI_HDMI_PLL_CNTL,
.shift = 0,
.width = 9,
},
.n = {
.reg_off = HHI_HDMI_PLL_CNTL,
.shift = 9,
.width = 5,
},
.frac = {
.reg_off = HHI_HDMI_PLL_CNTL2,
.shift = 0,
.width = 12,
},
.od = {
.reg_off = HHI_HDMI_PLL_CNTL2,
.shift = 16,
.width = 2,
},
.od2 = {
.reg_off = HHI_HDMI_PLL_CNTL2,
.shift = 22,
.width = 2,
},
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "hdmi_pll",
.ops = &meson_clk_pll_ro_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
.flags = CLK_GET_RATE_NOCACHE,
},
};
static struct meson_clk_pll gxbb_sys_pll = {
.m = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 0,
.width = 9,
},
.n = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 9,
.width = 5,
},
.od = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 10,
.width = 2,
},
.rate_table = sys_pll_rate_table,
.rate_count = ARRAY_SIZE(sys_pll_rate_table),
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "sys_pll",
.ops = &meson_clk_pll_ro_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
.flags = CLK_GET_RATE_NOCACHE,
},
};
struct pll_params_table gxbb_gp0_params_table[] = {
PLL_PARAM(HHI_GP0_PLL_CNTL, 0x6a000228),
PLL_PARAM(HHI_GP0_PLL_CNTL2, 0x69c80000),
PLL_PARAM(HHI_GP0_PLL_CNTL3, 0x0a5590c4),
PLL_PARAM(HHI_GP0_PLL_CNTL4, 0x0000500d),
};
static struct meson_clk_pll gxbb_gp0_pll = {
.m = {
.reg_off = HHI_GP0_PLL_CNTL,
.shift = 0,
.width = 9,
},
.n = {
.reg_off = HHI_GP0_PLL_CNTL,
.shift = 9,
.width = 5,
},
.od = {
.reg_off = HHI_GP0_PLL_CNTL,
.shift = 16,
.width = 2,
},
.params = {
.params_table = gxbb_gp0_params_table,
.params_count = ARRAY_SIZE(gxbb_gp0_params_table),
.no_init_reset = true,
.clear_reset_for_lock = true,
},
.rate_table = gp0_pll_rate_table,
.rate_count = ARRAY_SIZE(gp0_pll_rate_table),
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "gp0_pll",
.ops = &meson_clk_pll_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
.flags = CLK_GET_RATE_NOCACHE,
},
};
static struct clk_fixed_factor gxbb_fclk_div2 = {
.mult = 1,
.div = 2,
.hw.init = &(struct clk_init_data){
.name = "fclk_div2",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_fixed_factor gxbb_fclk_div3 = {
.mult = 1,
.div = 3,
.hw.init = &(struct clk_init_data){
.name = "fclk_div3",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_fixed_factor gxbb_fclk_div4 = {
.mult = 1,
.div = 4,
.hw.init = &(struct clk_init_data){
.name = "fclk_div4",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_fixed_factor gxbb_fclk_div5 = {
.mult = 1,
.div = 5,
.hw.init = &(struct clk_init_data){
.name = "fclk_div5",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_fixed_factor gxbb_fclk_div7 = {
.mult = 1,
.div = 7,
.hw.init = &(struct clk_init_data){
.name = "fclk_div7",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct meson_clk_mpll gxbb_mpll0 = {
.sdm = {
.reg_off = HHI_MPLL_CNTL7,
.shift = 0,
.width = 14,
},
.sdm_en = {
.reg_off = HHI_MPLL_CNTL7,
.shift = 15,
.width = 1,
},
.n2 = {
.reg_off = HHI_MPLL_CNTL7,
.shift = 16,
.width = 9,
},
.en = {
.reg_off = HHI_MPLL_CNTL7,
.shift = 14,
.width = 1,
},
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mpll0",
.ops = &meson_clk_mpll_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct meson_clk_mpll gxbb_mpll1 = {
.sdm = {
.reg_off = HHI_MPLL_CNTL8,
.shift = 0,
.width = 14,
},
.sdm_en = {
.reg_off = HHI_MPLL_CNTL8,
.shift = 15,
.width = 1,
},
.n2 = {
.reg_off = HHI_MPLL_CNTL8,
.shift = 16,
.width = 9,
},
.en = {
.reg_off = HHI_MPLL_CNTL8,
.shift = 14,
.width = 1,
},
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mpll1",
.ops = &meson_clk_mpll_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct meson_clk_mpll gxbb_mpll2 = {
.sdm = {
.reg_off = HHI_MPLL_CNTL9,
.shift = 0,
.width = 14,
},
.sdm_en = {
.reg_off = HHI_MPLL_CNTL9,
.shift = 15,
.width = 1,
},
.n2 = {
.reg_off = HHI_MPLL_CNTL9,
.shift = 16,
.width = 9,
},
.en = {
.reg_off = HHI_MPLL_CNTL9,
.shift = 14,
.width = 1,
},
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mpll2",
.ops = &meson_clk_mpll_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
/*
* FIXME cpu clocks and the legacy composite clocks (e.g. clk81) are both PLL
* post-dividers and should be modeled with their respective PLLs via the
* forthcoming coordinated clock rates feature
*/
static struct meson_clk_cpu gxbb_cpu_clk = {
.reg_off = HHI_SYS_CPU_CLK_CNTL1,
.div_table = cpu_div_table,
.clk_nb.notifier_call = meson_clk_cpu_notifier_cb,
.hw.init = &(struct clk_init_data){
.name = "cpu_clk",
.ops = &meson_clk_cpu_ops,
.parent_names = (const char *[]){ "sys_pll" },
.num_parents = 1,
},
};
static u32 mux_table_clk81[] = { 6, 5, 7 };
static struct clk_mux gxbb_mpeg_clk_sel = {
.reg = (void *)HHI_MPEG_CLK_CNTL,
.mask = 0x7,
.shift = 12,
.flags = CLK_MUX_READ_ONLY,
.table = mux_table_clk81,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mpeg_clk_sel",
.ops = &clk_mux_ro_ops,
/*
* FIXME bits 14:12 selects from 8 possible parents:
* xtal, 1'b0 (wtf), fclk_div7, mpll_clkout1, mpll_clkout2,
* fclk_div4, fclk_div3, fclk_div5
*/
.parent_names = (const char *[]){ "fclk_div3", "fclk_div4",
"fclk_div5" },
.num_parents = 3,
.flags = (CLK_SET_RATE_NO_REPARENT | CLK_IGNORE_UNUSED),
},
};
static struct clk_divider gxbb_mpeg_clk_div = {
.reg = (void *)HHI_MPEG_CLK_CNTL,
.shift = 0,
.width = 7,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mpeg_clk_div",
.ops = &clk_divider_ops,
.parent_names = (const char *[]){ "mpeg_clk_sel" },
.num_parents = 1,
.flags = (CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED),
},
};
/* the mother of dragons^W gates */
static struct clk_gate gxbb_clk81 = {
.reg = (void *)HHI_MPEG_CLK_CNTL,
.bit_idx = 7,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "clk81",
.ops = &clk_gate_ops,
.parent_names = (const char *[]){ "mpeg_clk_div" },
.num_parents = 1,
.flags = (CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED | CLK_IS_CRITICAL),
},
};
static struct clk_mux gxbb_sar_adc_clk_sel = {
.reg = (void *)HHI_SAR_CLK_CNTL,
.mask = 0x3,
.shift = 9,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "sar_adc_clk_sel",
.ops = &clk_mux_ops,
/* NOTE: The datasheet doesn't list the parents for bit 10 */
.parent_names = (const char *[]){ "xtal", "clk81", },
.num_parents = 2,
},
};
static struct clk_divider gxbb_sar_adc_clk_div = {
.reg = (void *)HHI_SAR_CLK_CNTL,
.shift = 0,
.width = 8,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "sar_adc_clk_div",
.ops = &clk_divider_ops,
.parent_names = (const char *[]){ "sar_adc_clk_sel" },
.num_parents = 1,
},
};
static struct clk_gate gxbb_sar_adc_clk = {
.reg = (void *)HHI_SAR_CLK_CNTL,
.bit_idx = 8,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "sar_adc_clk",
.ops = &clk_gate_ops,
.parent_names = (const char *[]){ "sar_adc_clk_div" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
/*
* The MALI IP is clocked by two identical clocks (mali_0 and mali_1)
* muxed by a glitch-free switch.
*/
static u32 mux_table_mali_0_1[] = {0, 1, 2, 3, 4, 5, 6, 7};
static const char *gxbb_mali_0_1_parent_names[] = {
"xtal", "gp0_pll", "mpll2", "mpll1", "fclk_div7",
"fclk_div4", "fclk_div3", "fclk_div5"
};
static struct clk_mux gxbb_mali_0_sel = {
.reg = (void *)HHI_MALI_CLK_CNTL,
.mask = 0x7,
.shift = 9,
.table = mux_table_mali_0_1,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mali_0_sel",
.ops = &clk_mux_ops,
/*
* bits 10:9 selects from 8 possible parents:
* xtal, gp0_pll, mpll2, mpll1, fclk_div7,
* fclk_div4, fclk_div3, fclk_div5
*/
.parent_names = gxbb_mali_0_1_parent_names,
.num_parents = 8,
.flags = CLK_SET_RATE_NO_REPARENT,
},
};
static struct clk_divider gxbb_mali_0_div = {
.reg = (void *)HHI_MALI_CLK_CNTL,
.shift = 0,
.width = 7,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mali_0_div",
.ops = &clk_divider_ops,
.parent_names = (const char *[]){ "mali_0_sel" },
.num_parents = 1,
.flags = CLK_SET_RATE_NO_REPARENT,
},
};
static struct clk_gate gxbb_mali_0 = {
.reg = (void *)HHI_MALI_CLK_CNTL,
.bit_idx = 8,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mali_0",
.ops = &clk_gate_ops,
.parent_names = (const char *[]){ "mali_0_div" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_mux gxbb_mali_1_sel = {
.reg = (void *)HHI_MALI_CLK_CNTL,
.mask = 0x7,
.shift = 25,
.table = mux_table_mali_0_1,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mali_1_sel",
.ops = &clk_mux_ops,
/*
* bits 10:9 selects from 8 possible parents:
* xtal, gp0_pll, mpll2, mpll1, fclk_div7,
* fclk_div4, fclk_div3, fclk_div5
*/
.parent_names = gxbb_mali_0_1_parent_names,
.num_parents = 8,
.flags = CLK_SET_RATE_NO_REPARENT,
},
};
static struct clk_divider gxbb_mali_1_div = {
.reg = (void *)HHI_MALI_CLK_CNTL,
.shift = 16,
.width = 7,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mali_1_div",
.ops = &clk_divider_ops,
.parent_names = (const char *[]){ "mali_1_sel" },
.num_parents = 1,
.flags = CLK_SET_RATE_NO_REPARENT,
},
};
static struct clk_gate gxbb_mali_1 = {
.reg = (void *)HHI_MALI_CLK_CNTL,
.bit_idx = 24,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mali_1",
.ops = &clk_gate_ops,
.parent_names = (const char *[]){ "mali_1_div" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static u32 mux_table_mali[] = {0, 1};
static const char *gxbb_mali_parent_names[] = {
"mali_0", "mali_1"
};
static struct clk_mux gxbb_mali = {
.reg = (void *)HHI_MALI_CLK_CNTL,
.mask = 1,
.shift = 31,
.table = mux_table_mali,
.lock = &clk_lock,
.hw.init = &(struct clk_init_data){
.name = "mali",
.ops = &clk_mux_ops,
.parent_names = gxbb_mali_parent_names,
.num_parents = 2,
.flags = CLK_SET_RATE_NO_REPARENT,
},
};
/* Everything Else (EE) domain gates */
static MESON_GATE(gxbb_ddr, HHI_GCLK_MPEG0, 0);
static MESON_GATE(gxbb_dos, HHI_GCLK_MPEG0, 1);
static MESON_GATE(gxbb_isa, HHI_GCLK_MPEG0, 5);
static MESON_GATE(gxbb_pl301, HHI_GCLK_MPEG0, 6);
static MESON_GATE(gxbb_periphs, HHI_GCLK_MPEG0, 7);
static MESON_GATE(gxbb_spicc, HHI_GCLK_MPEG0, 8);
static MESON_GATE(gxbb_i2c, HHI_GCLK_MPEG0, 9);
static MESON_GATE(gxbb_sar_adc, HHI_GCLK_MPEG0, 10);
static MESON_GATE(gxbb_smart_card, HHI_GCLK_MPEG0, 11);
static MESON_GATE(gxbb_rng0, HHI_GCLK_MPEG0, 12);
static MESON_GATE(gxbb_uart0, HHI_GCLK_MPEG0, 13);
static MESON_GATE(gxbb_sdhc, HHI_GCLK_MPEG0, 14);
static MESON_GATE(gxbb_stream, HHI_GCLK_MPEG0, 15);
static MESON_GATE(gxbb_async_fifo, HHI_GCLK_MPEG0, 16);
static MESON_GATE(gxbb_sdio, HHI_GCLK_MPEG0, 17);
static MESON_GATE(gxbb_abuf, HHI_GCLK_MPEG0, 18);
static MESON_GATE(gxbb_hiu_iface, HHI_GCLK_MPEG0, 19);
static MESON_GATE(gxbb_assist_misc, HHI_GCLK_MPEG0, 23);
static MESON_GATE(gxbb_emmc_a, HHI_GCLK_MPEG0, 24);
static MESON_GATE(gxbb_emmc_b, HHI_GCLK_MPEG0, 25);
static MESON_GATE(gxbb_emmc_c, HHI_GCLK_MPEG0, 26);
static MESON_GATE(gxbb_spi, HHI_GCLK_MPEG0, 30);
static MESON_GATE(gxbb_i2s_spdif, HHI_GCLK_MPEG1, 2);
static MESON_GATE(gxbb_eth, HHI_GCLK_MPEG1, 3);
static MESON_GATE(gxbb_demux, HHI_GCLK_MPEG1, 4);
static MESON_GATE(gxbb_aiu_glue, HHI_GCLK_MPEG1, 6);
static MESON_GATE(gxbb_iec958, HHI_GCLK_MPEG1, 7);
static MESON_GATE(gxbb_i2s_out, HHI_GCLK_MPEG1, 8);
static MESON_GATE(gxbb_amclk, HHI_GCLK_MPEG1, 9);
static MESON_GATE(gxbb_aififo2, HHI_GCLK_MPEG1, 10);
static MESON_GATE(gxbb_mixer, HHI_GCLK_MPEG1, 11);
static MESON_GATE(gxbb_mixer_iface, HHI_GCLK_MPEG1, 12);
static MESON_GATE(gxbb_adc, HHI_GCLK_MPEG1, 13);
static MESON_GATE(gxbb_blkmv, HHI_GCLK_MPEG1, 14);
static MESON_GATE(gxbb_aiu, HHI_GCLK_MPEG1, 15);
static MESON_GATE(gxbb_uart1, HHI_GCLK_MPEG1, 16);
static MESON_GATE(gxbb_g2d, HHI_GCLK_MPEG1, 20);
static MESON_GATE(gxbb_usb0, HHI_GCLK_MPEG1, 21);
static MESON_GATE(gxbb_usb1, HHI_GCLK_MPEG1, 22);
static MESON_GATE(gxbb_reset, HHI_GCLK_MPEG1, 23);
static MESON_GATE(gxbb_nand, HHI_GCLK_MPEG1, 24);
static MESON_GATE(gxbb_dos_parser, HHI_GCLK_MPEG1, 25);
static MESON_GATE(gxbb_usb, HHI_GCLK_MPEG1, 26);
static MESON_GATE(gxbb_vdin1, HHI_GCLK_MPEG1, 28);
static MESON_GATE(gxbb_ahb_arb0, HHI_GCLK_MPEG1, 29);
static MESON_GATE(gxbb_efuse, HHI_GCLK_MPEG1, 30);
static MESON_GATE(gxbb_boot_rom, HHI_GCLK_MPEG1, 31);
static MESON_GATE(gxbb_ahb_data_bus, HHI_GCLK_MPEG2, 1);
static MESON_GATE(gxbb_ahb_ctrl_bus, HHI_GCLK_MPEG2, 2);
static MESON_GATE(gxbb_hdmi_intr_sync, HHI_GCLK_MPEG2, 3);
static MESON_GATE(gxbb_hdmi_pclk, HHI_GCLK_MPEG2, 4);
static MESON_GATE(gxbb_usb1_ddr_bridge, HHI_GCLK_MPEG2, 8);
static MESON_GATE(gxbb_usb0_ddr_bridge, HHI_GCLK_MPEG2, 9);
static MESON_GATE(gxbb_mmc_pclk, HHI_GCLK_MPEG2, 11);
static MESON_GATE(gxbb_dvin, HHI_GCLK_MPEG2, 12);
static MESON_GATE(gxbb_uart2, HHI_GCLK_MPEG2, 15);
static MESON_GATE(gxbb_sana, HHI_GCLK_MPEG2, 22);
static MESON_GATE(gxbb_vpu_intr, HHI_GCLK_MPEG2, 25);
static MESON_GATE(gxbb_sec_ahb_ahb3_bridge, HHI_GCLK_MPEG2, 26);
static MESON_GATE(gxbb_clk81_a53, HHI_GCLK_MPEG2, 29);
static MESON_GATE(gxbb_vclk2_venci0, HHI_GCLK_OTHER, 1);
static MESON_GATE(gxbb_vclk2_venci1, HHI_GCLK_OTHER, 2);
static MESON_GATE(gxbb_vclk2_vencp0, HHI_GCLK_OTHER, 3);
static MESON_GATE(gxbb_vclk2_vencp1, HHI_GCLK_OTHER, 4);
static MESON_GATE(gxbb_gclk_venci_int0, HHI_GCLK_OTHER, 8);
static MESON_GATE(gxbb_gclk_vencp_int, HHI_GCLK_OTHER, 9);
static MESON_GATE(gxbb_dac_clk, HHI_GCLK_OTHER, 10);
static MESON_GATE(gxbb_aoclk_gate, HHI_GCLK_OTHER, 14);
static MESON_GATE(gxbb_iec958_gate, HHI_GCLK_OTHER, 16);
static MESON_GATE(gxbb_enc480p, HHI_GCLK_OTHER, 20);
static MESON_GATE(gxbb_rng1, HHI_GCLK_OTHER, 21);
static MESON_GATE(gxbb_gclk_venci_int1, HHI_GCLK_OTHER, 22);
static MESON_GATE(gxbb_vclk2_venclmcc, HHI_GCLK_OTHER, 24);
static MESON_GATE(gxbb_vclk2_vencl, HHI_GCLK_OTHER, 25);
static MESON_GATE(gxbb_vclk_other, HHI_GCLK_OTHER, 26);
static MESON_GATE(gxbb_edp, HHI_GCLK_OTHER, 31);
/* Always On (AO) domain gates */
static MESON_GATE(gxbb_ao_media_cpu, HHI_GCLK_AO, 0);
static MESON_GATE(gxbb_ao_ahb_sram, HHI_GCLK_AO, 1);
static MESON_GATE(gxbb_ao_ahb_bus, HHI_GCLK_AO, 2);
static MESON_GATE(gxbb_ao_iface, HHI_GCLK_AO, 3);
static MESON_GATE(gxbb_ao_i2c, HHI_GCLK_AO, 4);
/* Array of all clocks provided by this provider */
static struct clk_hw_onecell_data gxbb_hw_onecell_data = {
.hws = {
[CLKID_SYS_PLL] = &gxbb_sys_pll.hw,
[CLKID_CPUCLK] = &gxbb_cpu_clk.hw,
[CLKID_HDMI_PLL] = &gxbb_hdmi_pll.hw,
[CLKID_FIXED_PLL] = &gxbb_fixed_pll.hw,
[CLKID_FCLK_DIV2] = &gxbb_fclk_div2.hw,
[CLKID_FCLK_DIV3] = &gxbb_fclk_div3.hw,
[CLKID_FCLK_DIV4] = &gxbb_fclk_div4.hw,
[CLKID_FCLK_DIV5] = &gxbb_fclk_div5.hw,
[CLKID_FCLK_DIV7] = &gxbb_fclk_div7.hw,
[CLKID_GP0_PLL] = &gxbb_gp0_pll.hw,
[CLKID_MPEG_SEL] = &gxbb_mpeg_clk_sel.hw,
[CLKID_MPEG_DIV] = &gxbb_mpeg_clk_div.hw,
[CLKID_CLK81] = &gxbb_clk81.hw,
[CLKID_MPLL0] = &gxbb_mpll0.hw,
[CLKID_MPLL1] = &gxbb_mpll1.hw,
[CLKID_MPLL2] = &gxbb_mpll2.hw,
[CLKID_DDR] = &gxbb_ddr.hw,
[CLKID_DOS] = &gxbb_dos.hw,
[CLKID_ISA] = &gxbb_isa.hw,
[CLKID_PL301] = &gxbb_pl301.hw,
[CLKID_PERIPHS] = &gxbb_periphs.hw,
[CLKID_SPICC] = &gxbb_spicc.hw,
[CLKID_I2C] = &gxbb_i2c.hw,
[CLKID_SAR_ADC] = &gxbb_sar_adc.hw,
[CLKID_SMART_CARD] = &gxbb_smart_card.hw,
[CLKID_RNG0] = &gxbb_rng0.hw,
[CLKID_UART0] = &gxbb_uart0.hw,
[CLKID_SDHC] = &gxbb_sdhc.hw,
[CLKID_STREAM] = &gxbb_stream.hw,
[CLKID_ASYNC_FIFO] = &gxbb_async_fifo.hw,
[CLKID_SDIO] = &gxbb_sdio.hw,
[CLKID_ABUF] = &gxbb_abuf.hw,
[CLKID_HIU_IFACE] = &gxbb_hiu_iface.hw,
[CLKID_ASSIST_MISC] = &gxbb_assist_misc.hw,
[CLKID_SPI] = &gxbb_spi.hw,
[CLKID_I2S_SPDIF] = &gxbb_i2s_spdif.hw,
[CLKID_ETH] = &gxbb_eth.hw,
[CLKID_DEMUX] = &gxbb_demux.hw,
[CLKID_AIU_GLUE] = &gxbb_aiu_glue.hw,
[CLKID_IEC958] = &gxbb_iec958.hw,
[CLKID_I2S_OUT] = &gxbb_i2s_out.hw,
[CLKID_AMCLK] = &gxbb_amclk.hw,
[CLKID_AIFIFO2] = &gxbb_aififo2.hw,
[CLKID_MIXER] = &gxbb_mixer.hw,
[CLKID_MIXER_IFACE] = &gxbb_mixer_iface.hw,
[CLKID_ADC] = &gxbb_adc.hw,
[CLKID_BLKMV] = &gxbb_blkmv.hw,
[CLKID_AIU] = &gxbb_aiu.hw,
[CLKID_UART1] = &gxbb_uart1.hw,
[CLKID_G2D] = &gxbb_g2d.hw,
[CLKID_USB0] = &gxbb_usb0.hw,
[CLKID_USB1] = &gxbb_usb1.hw,
[CLKID_RESET] = &gxbb_reset.hw,
[CLKID_NAND] = &gxbb_nand.hw,
[CLKID_DOS_PARSER] = &gxbb_dos_parser.hw,
[CLKID_USB] = &gxbb_usb.hw,
[CLKID_VDIN1] = &gxbb_vdin1.hw,
[CLKID_AHB_ARB0] = &gxbb_ahb_arb0.hw,
[CLKID_EFUSE] = &gxbb_efuse.hw,
[CLKID_BOOT_ROM] = &gxbb_boot_rom.hw,
[CLKID_AHB_DATA_BUS] = &gxbb_ahb_data_bus.hw,
[CLKID_AHB_CTRL_BUS] = &gxbb_ahb_ctrl_bus.hw,
[CLKID_HDMI_INTR_SYNC] = &gxbb_hdmi_intr_sync.hw,
[CLKID_HDMI_PCLK] = &gxbb_hdmi_pclk.hw,
[CLKID_USB1_DDR_BRIDGE] = &gxbb_usb1_ddr_bridge.hw,
[CLKID_USB0_DDR_BRIDGE] = &gxbb_usb0_ddr_bridge.hw,
[CLKID_MMC_PCLK] = &gxbb_mmc_pclk.hw,
[CLKID_DVIN] = &gxbb_dvin.hw,
[CLKID_UART2] = &gxbb_uart2.hw,
[CLKID_SANA] = &gxbb_sana.hw,
[CLKID_VPU_INTR] = &gxbb_vpu_intr.hw,
[CLKID_SEC_AHB_AHB3_BRIDGE] = &gxbb_sec_ahb_ahb3_bridge.hw,
[CLKID_CLK81_A53] = &gxbb_clk81_a53.hw,
[CLKID_VCLK2_VENCI0] = &gxbb_vclk2_venci0.hw,
[CLKID_VCLK2_VENCI1] = &gxbb_vclk2_venci1.hw,
[CLKID_VCLK2_VENCP0] = &gxbb_vclk2_vencp0.hw,
[CLKID_VCLK2_VENCP1] = &gxbb_vclk2_vencp1.hw,
[CLKID_GCLK_VENCI_INT0] = &gxbb_gclk_venci_int0.hw,
[CLKID_GCLK_VENCI_INT] = &gxbb_gclk_vencp_int.hw,
[CLKID_DAC_CLK] = &gxbb_dac_clk.hw,
[CLKID_AOCLK_GATE] = &gxbb_aoclk_gate.hw,
[CLKID_IEC958_GATE] = &gxbb_iec958_gate.hw,
[CLKID_ENC480P] = &gxbb_enc480p.hw,
[CLKID_RNG1] = &gxbb_rng1.hw,
[CLKID_GCLK_VENCI_INT1] = &gxbb_gclk_venci_int1.hw,
[CLKID_VCLK2_VENCLMCC] = &gxbb_vclk2_venclmcc.hw,
[CLKID_VCLK2_VENCL] = &gxbb_vclk2_vencl.hw,
[CLKID_VCLK_OTHER] = &gxbb_vclk_other.hw,
[CLKID_EDP] = &gxbb_edp.hw,
[CLKID_AO_MEDIA_CPU] = &gxbb_ao_media_cpu.hw,
[CLKID_AO_AHB_SRAM] = &gxbb_ao_ahb_sram.hw,
[CLKID_AO_AHB_BUS] = &gxbb_ao_ahb_bus.hw,
[CLKID_AO_IFACE] = &gxbb_ao_iface.hw,
[CLKID_AO_I2C] = &gxbb_ao_i2c.hw,
[CLKID_SD_EMMC_A] = &gxbb_emmc_a.hw,
[CLKID_SD_EMMC_B] = &gxbb_emmc_b.hw,
[CLKID_SD_EMMC_C] = &gxbb_emmc_c.hw,
[CLKID_SAR_ADC_CLK] = &gxbb_sar_adc_clk.hw,
[CLKID_SAR_ADC_SEL] = &gxbb_sar_adc_clk_sel.hw,
[CLKID_SAR_ADC_DIV] = &gxbb_sar_adc_clk_div.hw,
[CLKID_MALI_0_SEL] = &gxbb_mali_0_sel.hw,
[CLKID_MALI_0_DIV] = &gxbb_mali_0_div.hw,
[CLKID_MALI_0] = &gxbb_mali_0.hw,
[CLKID_MALI_1_SEL] = &gxbb_mali_1_sel.hw,
[CLKID_MALI_1_DIV] = &gxbb_mali_1_div.hw,
[CLKID_MALI_1] = &gxbb_mali_1.hw,
[CLKID_MALI] = &gxbb_mali.hw,
},
.num = NR_CLKS,
};
/* Convenience tables to populate base addresses in .probe */
static struct meson_clk_pll *const gxbb_clk_plls[] = {
&gxbb_fixed_pll,
&gxbb_hdmi_pll,
&gxbb_sys_pll,
&gxbb_gp0_pll,
};
static struct meson_clk_mpll *const gxbb_clk_mplls[] = {
&gxbb_mpll0,
&gxbb_mpll1,
&gxbb_mpll2,
};
static struct clk_gate *const gxbb_clk_gates[] = {
&gxbb_clk81,
&gxbb_ddr,
&gxbb_dos,
&gxbb_isa,
&gxbb_pl301,
&gxbb_periphs,
&gxbb_spicc,
&gxbb_i2c,
&gxbb_sar_adc,
&gxbb_smart_card,
&gxbb_rng0,
&gxbb_uart0,
&gxbb_sdhc,
&gxbb_stream,
&gxbb_async_fifo,
&gxbb_sdio,
&gxbb_abuf,
&gxbb_hiu_iface,
&gxbb_assist_misc,
&gxbb_spi,
&gxbb_i2s_spdif,
&gxbb_eth,
&gxbb_demux,
&gxbb_aiu_glue,
&gxbb_iec958,
&gxbb_i2s_out,
&gxbb_amclk,
&gxbb_aififo2,
&gxbb_mixer,
&gxbb_mixer_iface,
&gxbb_adc,
&gxbb_blkmv,
&gxbb_aiu,
&gxbb_uart1,
&gxbb_g2d,
&gxbb_usb0,
&gxbb_usb1,
&gxbb_reset,
&gxbb_nand,
&gxbb_dos_parser,
&gxbb_usb,
&gxbb_vdin1,
&gxbb_ahb_arb0,
&gxbb_efuse,
&gxbb_boot_rom,
&gxbb_ahb_data_bus,
&gxbb_ahb_ctrl_bus,
&gxbb_hdmi_intr_sync,
&gxbb_hdmi_pclk,
&gxbb_usb1_ddr_bridge,
&gxbb_usb0_ddr_bridge,
&gxbb_mmc_pclk,
&gxbb_dvin,
&gxbb_uart2,
&gxbb_sana,
&gxbb_vpu_intr,
&gxbb_sec_ahb_ahb3_bridge,
&gxbb_clk81_a53,
&gxbb_vclk2_venci0,
&gxbb_vclk2_venci1,
&gxbb_vclk2_vencp0,
&gxbb_vclk2_vencp1,
&gxbb_gclk_venci_int0,
&gxbb_gclk_vencp_int,
&gxbb_dac_clk,
&gxbb_aoclk_gate,
&gxbb_iec958_gate,
&gxbb_enc480p,
&gxbb_rng1,
&gxbb_gclk_venci_int1,
&gxbb_vclk2_venclmcc,
&gxbb_vclk2_vencl,
&gxbb_vclk_other,
&gxbb_edp,
&gxbb_ao_media_cpu,
&gxbb_ao_ahb_sram,
&gxbb_ao_ahb_bus,
&gxbb_ao_iface,
&gxbb_ao_i2c,
&gxbb_emmc_a,
&gxbb_emmc_b,
&gxbb_emmc_c,
&gxbb_sar_adc_clk,
&gxbb_mali_0,
&gxbb_mali_1,
};
static struct clk_mux *const gxbb_clk_muxes[] = {
&gxbb_mpeg_clk_sel,
&gxbb_sar_adc_clk_sel,
&gxbb_mali_0_sel,
&gxbb_mali_1_sel,
&gxbb_mali,
};
static struct clk_divider *const gxbb_clk_dividers[] = {
&gxbb_mpeg_clk_div,
&gxbb_sar_adc_clk_div,
&gxbb_mali_0_div,
&gxbb_mali_1_div,
};
static int gxbb_clkc_probe(struct platform_device *pdev)
{
void __iomem *clk_base;
int ret, clkid, i;
struct clk_hw *parent_hw;
struct clk *parent_clk;
struct device *dev = &pdev->dev;
/* Generic clocks and PLLs */
clk_base = of_iomap(dev->of_node, 0);
if (!clk_base) {
pr_err("%s: Unable to map clk base\n", __func__);
return -ENXIO;
}
/* Populate base address for PLLs */
for (i = 0; i < ARRAY_SIZE(gxbb_clk_plls); i++)
gxbb_clk_plls[i]->base = clk_base;
/* Populate base address for MPLLs */
for (i = 0; i < ARRAY_SIZE(gxbb_clk_mplls); i++)
gxbb_clk_mplls[i]->base = clk_base;
/* Populate the base address for CPU clk */
gxbb_cpu_clk.base = clk_base;
/* Populate base address for gates */
for (i = 0; i < ARRAY_SIZE(gxbb_clk_gates); i++)
gxbb_clk_gates[i]->reg = clk_base +
(u64)gxbb_clk_gates[i]->reg;
/* Populate base address for muxes */
for (i = 0; i < ARRAY_SIZE(gxbb_clk_muxes); i++)
gxbb_clk_muxes[i]->reg = clk_base +
(u64)gxbb_clk_muxes[i]->reg;
/* Populate base address for dividers */
for (i = 0; i < ARRAY_SIZE(gxbb_clk_dividers); i++)
gxbb_clk_dividers[i]->reg = clk_base +
(u64)gxbb_clk_dividers[i]->reg;
/*
* register all clks
*/
for (clkid = 0; clkid < NR_CLKS; clkid++) {
ret = devm_clk_hw_register(dev, gxbb_hw_onecell_data.hws[clkid]);
if (ret)
goto iounmap;
}
/*
* Register CPU clk notifier
*
* FIXME this is wrong for a lot of reasons. First, the muxes should be
* struct clk_hw objects. Second, we shouldn't program the muxes in
* notifier handlers. The tricky programming sequence will be handled
* by the forthcoming coordinated clock rates mechanism once that
* feature is released.
*
* Furthermore, looking up the parent this way is terrible. At some
* point we will stop allocating a default struct clk when registering
* a new clk_hw, and this hack will no longer work. Releasing the ccr
* feature before that time solves the problem :-)
*/
parent_hw = clk_hw_get_parent(&gxbb_cpu_clk.hw);
parent_clk = parent_hw->clk;
ret = clk_notifier_register(parent_clk, &gxbb_cpu_clk.clk_nb);
if (ret) {
pr_err("%s: failed to register clock notifier for cpu_clk\n",
__func__);
goto iounmap;
}
return of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
&gxbb_hw_onecell_data);
iounmap:
iounmap(clk_base);
return ret;
}
static const struct of_device_id gxbb_clkc_match_table[] = {
{ .compatible = "amlogic,gxbb-clkc" },
{ }
};
static struct platform_driver gxbb_driver = {
.probe = gxbb_clkc_probe,
.driver = {
.name = "gxbb-clkc",
.of_match_table = gxbb_clkc_match_table,
},
};
builtin_platform_driver(gxbb_driver);
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