diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-08 05:27:30 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-08 05:27:30 +0200 |
commit | 1a5700bc2d10cd379a795fd2bb377a190af5acd4 (patch) | |
tree | e9f754cbc34020dd23c1d2e3e45fb6890ba7593c /drivers/clk/berlin/bg2.c | |
parent | Merge tag 'vfio-v3.16-rc1' of git://github.com/awilliam/linux-vfio into next (diff) | |
parent | mmc: sunxi: Add driver for SD/MMC hosts found on Allwinner sunxi SoCs (diff) | |
download | linux-1a5700bc2d10cd379a795fd2bb377a190af5acd4.tar.xz linux-1a5700bc2d10cd379a795fd2bb377a190af5acd4.zip |
Merge tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux into next
Pull clock framework updates from Mike Turquette:
"The clock framework changes for 3.16 are pretty typical: mostly clock
driver additions and fixes. There are additions to the clock core
code for some of the basic types (e.g. the common divider type has
some fixes and featured added to it).
One minor annoyance is a last-minute dependency that wasn't handled
quite right. Commit ba0fae3b06a6 ("clk: berlin: add core clock driver
for BG2/BG2CD") in this pull request depends on
include/dt-bindings/clock/berlin2.h, which is already in your tree via
the arm-soc pull request. Building for the berlin platform will break
when the clk tree is built on it's own, but merged into your master
branch everything should be fine"
* tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux: (75 commits)
mmc: sunxi: Add driver for SD/MMC hosts found on Allwinner sunxi SoCs
clk: export __clk_round_rate for providers
clk: versatile: free icst on error return
clk: qcom: Return error pointers for unimplemented clocks
clk: qcom: Support msm8974pro global clock control hardware
clk: qcom: Properly support display clocks on msm8974
clk: qcom: Support display RCG clocks
clk: qcom: Return highest rate when round_rate() exceeds plan
clk: qcom: Fix mmcc-8974's PLL configurations
clk: qcom: Fix clk_rcg2_is_enabled() check
clk: berlin: add core clock driver for BG2Q
clk: berlin: add core clock driver for BG2/BG2CD
clk: berlin: add driver for BG2x complex divider cells
clk: berlin: add driver for BG2x simple PLLs
clk: berlin: add driver for BG2x audio/video PLL
clk: st: Terminate of match table
clk/exynos4: Fix compilation warning
ARM: shmobile: r8a7779: Add clock index macros for DT sources
clk: divider: Fix overflow in clk_divider_bestdiv
clk: u300: Terminate of match table
...
Diffstat (limited to 'drivers/clk/berlin/bg2.c')
-rw-r--r-- | drivers/clk/berlin/bg2.c | 691 |
1 files changed, 691 insertions, 0 deletions
diff --git a/drivers/clk/berlin/bg2.c b/drivers/clk/berlin/bg2.c new file mode 100644 index 000000000000..515fb133495c --- /dev/null +++ b/drivers/clk/berlin/bg2.c @@ -0,0 +1,691 @@ +/* + * 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 *clks[MAX_CLKS]; +static struct clk_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, CLK_IGNORE_UNUSED }, + { "sdio1", "perif", 15, CLK_IGNORE_UNUSED }, + { "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) +{ + const char *parent_names[9]; + struct clk *clk; + u8 avpll_flags = 0; + int n; + + gbase = of_iomap(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 */ + clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_SYSPLLCTL0, + clk_names[SYSPLL], clk_names[REFCLK], 0); + if (IS_ERR(clk)) + goto bg2_fail; + + clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_MEMPLLCTL0, + clk_names[MEMPLL], clk_names[REFCLK], 0); + if (IS_ERR(clk)) + goto bg2_fail; + + clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_CPUPLLCTL0, + clk_names[CPUPLL], clk_names[REFCLK], 0); + if (IS_ERR(clk)) + goto bg2_fail; + + if (of_device_is_compatible(np, "marvell,berlin2-global-register")) + avpll_flags |= BERLIN2_AVPLL_SCRAMBLE_QUIRK; + + /* audio/video VCOs */ + clk = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL0, "avpll_vcoA", + clk_names[REFCLK], avpll_flags, 0); + if (IS_ERR(clk)) + goto bg2_fail; + + for (n = 0; n < 8; n++) { + clk = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL0, + clk_names[AVPLL_A1 + n], n, "avpll_vcoA", + avpll_flags, 0); + if (IS_ERR(clk)) + goto bg2_fail; + } + + clk = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL31, "avpll_vcoB", + clk_names[REFCLK], BERLIN2_AVPLL_BIT_QUIRK | + avpll_flags, 0); + if (IS_ERR(clk)) + goto bg2_fail; + + for (n = 0; n < 8; n++) { + clk = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL31, + clk_names[AVPLL_B1 + n], n, "avpll_vcoB", + BERLIN2_AVPLL_BIT_QUIRK | avpll_flags, 0); + if (IS_ERR(clk)) + goto bg2_fail; + } + + /* reference clock bypass switches */ + parent_names[0] = clk_names[SYSPLL]; + parent_names[1] = clk_names[REFCLK]; + clk = clk_register_mux(NULL, "syspll_byp", parent_names, 2, + 0, gbase + REG_CLKSWITCH0, 0, 1, 0, &lock); + if (IS_ERR(clk)) + goto bg2_fail; + clk_names[SYSPLL] = __clk_get_name(clk); + + parent_names[0] = clk_names[MEMPLL]; + parent_names[1] = clk_names[REFCLK]; + clk = clk_register_mux(NULL, "mempll_byp", parent_names, 2, + 0, gbase + REG_CLKSWITCH0, 1, 1, 0, &lock); + if (IS_ERR(clk)) + goto bg2_fail; + clk_names[MEMPLL] = __clk_get_name(clk); + + parent_names[0] = clk_names[CPUPLL]; + parent_names[1] = clk_names[REFCLK]; + clk = clk_register_mux(NULL, "cpupll_byp", parent_names, 2, + 0, gbase + REG_CLKSWITCH0, 2, 1, 0, &lock); + if (IS_ERR(clk)) + goto bg2_fail; + clk_names[CPUPLL] = __clk_get_name(clk); + + /* clock muxes */ + parent_names[0] = clk_names[AVPLL_B3]; + parent_names[1] = clk_names[AVPLL_A3]; + clk = clk_register_mux(NULL, clk_names[AUDIO1_PLL], parent_names, 2, + 0, gbase + REG_CLKSELECT2, 29, 1, 0, &lock); + if (IS_ERR(clk)) + goto bg2_fail; + + parent_names[0] = clk_names[VIDEO0_PLL]; + parent_names[1] = clk_names[VIDEO_EXT0]; + clk = clk_register_mux(NULL, clk_names[VIDEO0_IN], parent_names, 2, + 0, gbase + REG_CLKSELECT3, 4, 1, 0, &lock); + if (IS_ERR(clk)) + goto bg2_fail; + + parent_names[0] = clk_names[VIDEO1_PLL]; + parent_names[1] = clk_names[VIDEO_EXT0]; + clk = clk_register_mux(NULL, clk_names[VIDEO1_IN], parent_names, 2, + 0, gbase + REG_CLKSELECT3, 6, 1, 0, &lock); + if (IS_ERR(clk)) + goto bg2_fail; + + parent_names[0] = clk_names[AVPLL_A2]; + parent_names[1] = clk_names[AVPLL_B2]; + clk = clk_register_mux(NULL, clk_names[VIDEO1_PLL], parent_names, 2, + 0, gbase + REG_CLKSELECT3, 7, 1, 0, &lock); + if (IS_ERR(clk)) + goto bg2_fail; + + parent_names[0] = clk_names[VIDEO2_PLL]; + parent_names[1] = clk_names[VIDEO_EXT0]; + clk = clk_register_mux(NULL, clk_names[VIDEO2_IN], parent_names, 2, + 0, gbase + REG_CLKSELECT3, 9, 1, 0, &lock); + if (IS_ERR(clk)) + goto bg2_fail; + + parent_names[0] = clk_names[AVPLL_B1]; + parent_names[1] = clk_names[AVPLL_A5]; + clk = clk_register_mux(NULL, clk_names[VIDEO2_PLL], parent_names, 2, + 0, gbase + REG_CLKSELECT3, 10, 1, 0, &lock); + if (IS_ERR(clk)) + 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]]; + + clks[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]; + + clks[CLKID_GETH0 + n] = clk_register_gate(NULL, gd->name, + gd->parent_name, gd->flags, gbase + REG_CLKENABLE, + gd->bit_idx, 0, &lock); + } + + /* twdclk is derived from cpu/3 */ + clks[CLKID_TWD] = + clk_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(clks[n])) + continue; + + pr_err("%s: Unable to register leaf clock %d\n", + np->full_name, n); + goto bg2_fail; + } + + /* register clk-provider */ + clk_data.clks = clks; + clk_data.clk_num = MAX_CLKS; + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + return; + +bg2_fail: + iounmap(gbase); +} +CLK_OF_DECLARE(berlin2_clock, "marvell,berlin2-chip-ctrl", + berlin2_clock_setup); +CLK_OF_DECLARE(berlin2cd_clock, "marvell,berlin2cd-chip-ctrl", + berlin2_clock_setup); |