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Subject[PATCH 07/11] clk: tegra: add clock support for tegra20
Date
Add tegra20 clock support based on common clock framework.

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
---
drivers/clk/tegra/Makefile | 2 +
drivers/clk/tegra/clk-tegra20.c | 1269 +++++++++++++++++++++++++++++++++++++++
drivers/clk/tegra/clk.h | 6 +
3 files changed, 1277 insertions(+), 0 deletions(-)
create mode 100644 drivers/clk/tegra/clk-tegra20.c

diff --git a/drivers/clk/tegra/Makefile b/drivers/clk/tegra/Makefile
index 68bd353..00484fd 100644
--- a/drivers/clk/tegra/Makefile
+++ b/drivers/clk/tegra/Makefile
@@ -6,3 +6,5 @@ obj-y += clk-periph-gate.o
obj-y += clk-pll.o
obj-y += clk-pll-out.o
obj-y += clk-super.o
+
+obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += clk-tegra20.o
diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
new file mode 100644
index 0000000..d8e88bd
--- /dev/null
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -0,0 +1,1269 @@
+/*
+ * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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/io.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/clk/tegra.h>
+
+#include "clk.h"
+
+#include <mach/iomap.h>
+
+#define RST_DEVICES_L 0x004
+#define RST_DEVICES_H 0x008
+#define RST_DEVICES_U 0x00c
+#define RST_DEVICES_SET_L 0x300
+#define RST_DEVICES_CLR_L 0x304
+#define RST_DEVICES_SET_H 0x308
+#define RST_DEVICES_CLR_H 0x30c
+#define RST_DEVICES_SET_U 0x310
+#define RST_DEVICES_CLR_U 0x314
+#define RST_DEVICES_NUM 3
+
+#define CLK_OUT_ENB_L 0x010
+#define CLK_OUT_ENB_H 0x014
+#define CLK_OUT_ENB_U 0x018
+#define CLK_OUT_ENB_SET_L 0x320
+#define CLK_OUT_ENB_CLR_L 0x324
+#define CLK_OUT_ENB_SET_H 0x328
+#define CLK_OUT_ENB_CLR_H 0x32c
+#define CLK_OUT_ENB_SET_U 0x330
+#define CLK_OUT_ENB_CLR_U 0x334
+#define CLK_OUT_ENB_NUM 3
+
+#define OSC_CTRL 0x50
+#define OSC_CTRL_OSC_FREQ_MASK (3<<30)
+#define OSC_CTRL_OSC_FREQ_13MHZ (0<<30)
+#define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30)
+#define OSC_CTRL_OSC_FREQ_12MHZ (2<<30)
+#define OSC_CTRL_OSC_FREQ_26MHZ (3<<30)
+#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK)
+
+#define OSC_CTRL_PLL_REF_DIV_MASK (3<<28)
+#define OSC_CTRL_PLL_REF_DIV_1 (0<<28)
+#define OSC_CTRL_PLL_REF_DIV_2 (1<<28)
+#define OSC_CTRL_PLL_REF_DIV_4 (2<<28)
+
+#define OSC_FREQ_DET 0x58
+#define OSC_FREQ_DET_TRIG (1<<31)
+
+#define OSC_FREQ_DET_STATUS 0x5c
+#define OSC_FREQ_DET_BUSY (1<<31)
+#define OSC_FREQ_DET_CNT_MASK 0xFFFF
+
+#define PLLS_BASE 0xf0
+#define PLLS_MISC 0xf4
+#define PLLC_BASE 0x80
+#define PLLC_MISC 0x8c
+#define PLLM_BASE 0x90
+#define PLLM_MISC 0x9c
+#define PLLP_BASE 0xa0
+#define PLLP_MISC 0xac
+#define PLLA_BASE 0xb0
+#define PLLA_MISC 0xbc
+#define PLLU_BASE 0xc0
+#define PLLU_MISC 0xcc
+#define PLLD_BASE 0xd0
+#define PLLD_MISC 0xdc
+#define PLLX_BASE 0xe0
+#define PLLX_MISC 0xe4
+#define PLLE_BASE 0xe8
+#define PLLE_MISC 0xec
+
+#define PLL_BASE_LOCK 27
+#define PLLE_MISC_LOCK 11
+
+#define PLL_MISC_LOCK_ENABLE 18
+#define PLLDU_MISC_LOCK_ENABLE 22
+#define PLLE_MISC_LOCK_ENABLE 9
+
+#define PLLC_OUT 0x84
+#define PLLM_OUT 0x94
+#define PLLP_OUTA 0xa4
+#define PLLP_OUTB 0xa8
+#define PLLA_OUT 0xb4
+
+#define CCLK_BURST_POLICY 0x20
+#define SUPER_CCLK_DIVIDER 0x24
+#define SCLK_BURST_POLICY 0x28
+#define SUPER_SCLK_DIVIDER 0x2c
+#define CLK_SYSTEM_RATE 0x30
+
+#define CLK_SOURCE_I2S1 0x100
+#define CLK_SOURCE_I2S2 0x104
+#define CLK_SOURCE_SPDIF_OUT 0x108
+#define CLK_SOURCE_SPDIF_IN 0x10c
+#define CLK_SOURCE_PWM 0x110
+#define CLK_SOURCE_SPI 0x114
+#define CLK_SOURCE_SBC1 0x134
+#define CLK_SOURCE_SBC2 0x118
+#define CLK_SOURCE_SBC3 0x11c
+#define CLK_SOURCE_SBC4 0x1b4
+#define CLK_SOURCE_XIO 0x120
+#define CLK_SOURCE_TWC 0x12c
+#define CLK_SOURCE_IDE 0x144
+#define CLK_SOURCE_NDFLASH 0x160
+#define CLK_SOURCE_VFIR 0x168
+#define CLK_SOURCE_SDMMC1 0x150
+#define CLK_SOURCE_SDMMC2 0x154
+#define CLK_SOURCE_SDMMC3 0x1bc
+#define CLK_SOURCE_SDMMC4 0x164
+#define CLK_SOURCE_CVE 0x140
+#define CLK_SOURCE_TVO 0x188
+#define CLK_SOURCE_TVDAC 0x194
+#define CLK_SOURCE_HDMI 0x18c
+#define CLK_SOURCE_DISP1 0x138
+#define CLK_SOURCE_DISP2 0x13c
+#define CLK_SOURCE_CSITE 0x1d4
+#define CLK_SOURCE_LA 0x1f8
+#define CLK_SOURCE_OWR 0x1cc
+#define CLK_SOURCE_NOR 0x1d0
+#define CLK_SOURCE_MIPI 0x174
+#define CLK_SOURCE_I2C1 0x124
+#define CLK_SOURCE_I2C2 0x198
+#define CLK_SOURCE_I2C3 0x1b8
+#define CLK_SOURCE_DVC 0x128
+#define CLK_SOURCE_UARTA 0x178
+#define CLK_SOURCE_UARTB 0x17c
+#define CLK_SOURCE_UARTC 0x1a0
+#define CLK_SOURCE_UARTD 0x1c0
+#define CLK_SOURCE_UARTE 0x1c4
+#define CLK_SOURCE_3D 0x158
+#define CLK_SOURCE_2D 0x15c
+#define CLK_SOURCE_MPE 0x170
+#define CLK_SOURCE_EPP 0x16c
+#define CLK_SOURCE_HOST1X 0x180
+#define CLK_SOURCE_VDE 0x1c8
+#define CLK_SOURCE_VI 0x148
+#define CLK_SOURCE_VI_SENSOR 0x1a8
+#define CLK_SOURCE_EMC 0x19c
+
+#define AUDIO_SYNC_CLK 0x38
+
+#define PMC_CTRL 0x0
+#define PMC_CTRL_BLINK_ENB 7
+#define PMC_DPD_PADS_ORIDE 0x1c
+#define PMC_DPD_PADS_ORIDE_BLINK_ENB 20
+
+/* Tegra CPU clock and reset control regs */
+#define TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX 0x4c
+#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET 0x340
+#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR 0x344
+
+#define CPU_CLOCK(cpu) (0x1 << (8 + cpu))
+#define CPU_RESET(cpu) (0x1111ul << (cpu))
+
+static int periph_clk_enb_refcnt[CLK_OUT_ENB_NUM * 32];
+
+static void __iomem *clk_base;
+static void __iomem *pmc_base;
+static void __iomem *apb_base;
+
+static DEFINE_SPINLOCK(pll_div_lock);
+
+#define TEGRA_INIT_DATA_MUX(_name, _con_id, _dev_id, _parents, _offset, \
+ _clk_num, _regs, _gate_flags, _clk_id) \
+ TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parents, _offset, \
+ 30, 2, 0, 0, 8, 1, 0, _regs, _clk_num, \
+ periph_clk_enb_refcnt, _gate_flags, _clk_id)
+
+#define TEGRA_INIT_DATA_INT(_name, _con_id, _dev_id, _parents, _offset, \
+ _clk_num, _regs, _gate_flags, _clk_id) \
+ TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parents, _offset, \
+ 30, 2, 0, 0, 8, 1, TEGRA_DIVIDER_INT, _regs, \
+ _clk_num, periph_clk_enb_refcnt, _gate_flags, \
+ _clk_id)
+
+#define TEGRA_INIT_DATA_DIV16(_name, _con_id, _dev_id, _parents, _offset,\
+ _clk_num, _regs, _gate_flags, _clk_id) \
+ TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parents, _offset, \
+ 30, 2, 0, 0, 16, 0, 0, _regs, \
+ _clk_num, periph_clk_enb_refcnt, _gate_flags, \
+ _clk_id)
+
+#define TEGRA_INIT_DATA_NODIV(_name, _con_id, _dev_id, _parents, _offset, \
+ _mux_shift, _mux_width, _clk_num, _regs, \
+ _gate_flags, _clk_id) \
+ TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parents, _offset, \
+ _mux_shift, _mux_width, 0, 0, 0, 0, 0, _regs, \
+ _clk_num, periph_clk_enb_refcnt, _gate_flags, \
+ _clk_id)
+
+/* IDs assigned here must be in sync with DT bindings definition
+ * for Tegra20 clocks .
+ */
+enum tegra20_clk {
+ cpu, ac97 = 3, rtc, timer, uarta, gpio = 8, sdmmc2, i2s1 = 11, i2c1,
+ ndflash, sdmmc1, sdmmc4, twc, pwm, i2s2, epp, gr2d = 21, usbd, isp,
+ gr3d, ide, disp2, disp1, host1x, vcp, cache2 = 31, mem, ahbdma, apbdma,
+ kbc = 36, stat_mon, pmc, fuse, kfuse, sbc1, nor, spi, sbc2, xio,
+ sbc3, dvc, dsi, mipi = 50, hdmi, csi, tvdac, i2c2, uartc, emc = 57,
+ usb2, usb3, mpe, vde, bsea, bsev, speedo, uartd, uarte, i2c3, sbc4,
+ sdmmc3, pex, owr, afi, csite, avpucq = 75, la, irama = 84, iramb,
+ iramc, iramd, cram2, audio_2x, clk_d, csus = 92, cdev1, cdev2,
+ uartb = 96, vfir, spdif_in, spdif_out, vi, vi_sensor, tvo, cve,
+ osc, clk_32k, clk_m, sclk, cclk, hclk, pclk, blink, pll_a, pll_a_out0,
+ pll_c, pll_c_out1, pll_d, pll_d_out0, pll_e, pll_m, pll_m_out1,
+ pll_p, pll_p_out1, pll_p_out2, pll_p_out3, pll_p_out4, pll_u,
+ pll_x, audio, pll_ref, twd,
+
+ /* Mux clocks */
+ audio_mux = 200, emc_mux, clk_max,
+};
+
+static struct clk *clks[clk_max];
+static struct clk_onecell_data clk_data;
+
+static struct tegra_clk_pll_freq_table pll_c_freq_table[] = {
+ { 12000000, 600000000, 600, 12, 1, 8 },
+ { 13000000, 600000000, 600, 13, 1, 8 },
+ { 19200000, 600000000, 500, 16, 1, 6 },
+ { 26000000, 600000000, 600, 26, 1, 8 },
+ { 0, 0, 0, 0, 0, 0 },
+};
+
+static struct tegra_clk_pll_freq_table pll_m_freq_table[] = {
+ { 12000000, 666000000, 666, 12, 1, 8},
+ { 13000000, 666000000, 666, 13, 1, 8},
+ { 19200000, 666000000, 555, 16, 1, 8},
+ { 26000000, 666000000, 666, 26, 1, 8},
+ { 12000000, 600000000, 600, 12, 1, 8},
+ { 13000000, 600000000, 600, 13, 1, 8},
+ { 19200000, 600000000, 375, 12, 1, 6},
+ { 26000000, 600000000, 600, 26, 1, 8},
+ { 0, 0, 0, 0, 0, 0 },
+};
+
+static struct tegra_clk_pll_freq_table pll_p_freq_table[] = {
+ { 12000000, 216000000, 432, 12, 2, 8},
+ { 13000000, 216000000, 432, 13, 2, 8},
+ { 19200000, 216000000, 90, 4, 2, 1},
+ { 26000000, 216000000, 432, 26, 2, 8},
+ { 12000000, 432000000, 432, 12, 1, 8},
+ { 13000000, 432000000, 432, 13, 1, 8},
+ { 19200000, 432000000, 90, 4, 1, 1},
+ { 26000000, 432000000, 432, 26, 1, 8},
+ { 0, 0, 0, 0, 0, 0 },
+};
+
+static struct tegra_clk_pll_freq_table pll_a_freq_table[] = {
+ { 28800000, 56448000, 49, 25, 1, 1},
+ { 28800000, 73728000, 64, 25, 1, 1},
+ { 28800000, 24000000, 5, 6, 1, 1},
+ { 0, 0, 0, 0, 0, 0 },
+};
+
+static struct tegra_clk_pll_freq_table pll_d_freq_table[] = {
+ { 12000000, 216000000, 216, 12, 1, 4},
+ { 13000000, 216000000, 216, 13, 1, 4},
+ { 19200000, 216000000, 135, 12, 1, 3},
+ { 26000000, 216000000, 216, 26, 1, 4},
+
+ { 12000000, 594000000, 594, 12, 1, 8},
+ { 13000000, 594000000, 594, 13, 1, 8},
+ { 19200000, 594000000, 495, 16, 1, 8},
+ { 26000000, 594000000, 594, 26, 1, 8},
+
+ { 12000000, 1000000000, 1000, 12, 1, 12},
+ { 13000000, 1000000000, 1000, 13, 1, 12},
+ { 19200000, 1000000000, 625, 12, 1, 8},
+ { 26000000, 1000000000, 1000, 26, 1, 12},
+
+ { 0, 0, 0, 0, 0, 0 },
+};
+
+static struct tegra_clk_pll_freq_table pll_u_freq_table[] = {
+ { 12000000, 480000000, 960, 12, 2, 0},
+ { 13000000, 480000000, 960, 13, 2, 0},
+ { 19200000, 480000000, 200, 4, 2, 0},
+ { 26000000, 480000000, 960, 26, 2, 0},
+ { 0, 0, 0, 0, 0, 0 },
+};
+
+static struct tegra_clk_pll_freq_table pll_x_freq_table[] = {
+ /* 1 GHz */
+ { 12000000, 1000000000, 1000, 12, 1, 12},
+ { 13000000, 1000000000, 1000, 13, 1, 12},
+ { 19200000, 1000000000, 625, 12, 1, 8},
+ { 26000000, 1000000000, 1000, 26, 1, 12},
+
+ /* 912 MHz */
+ { 12000000, 912000000, 912, 12, 1, 12},
+ { 13000000, 912000000, 912, 13, 1, 12},
+ { 19200000, 912000000, 760, 16, 1, 8},
+ { 26000000, 912000000, 912, 26, 1, 12},
+
+ /* 816 MHz */
+ { 12000000, 816000000, 816, 12, 1, 12},
+ { 13000000, 816000000, 816, 13, 1, 12},
+ { 19200000, 816000000, 680, 16, 1, 8},
+ { 26000000, 816000000, 816, 26, 1, 12},
+
+ /* 760 MHz */
+ { 12000000, 760000000, 760, 12, 1, 12},
+ { 13000000, 760000000, 760, 13, 1, 12},
+ { 19200000, 760000000, 950, 24, 1, 8},
+ { 26000000, 760000000, 760, 26, 1, 12},
+
+ /* 750 MHz */
+ { 12000000, 750000000, 750, 12, 1, 12},
+ { 13000000, 750000000, 750, 13, 1, 12},
+ { 19200000, 750000000, 625, 16, 1, 8},
+ { 26000000, 750000000, 750, 26, 1, 12},
+
+ /* 608 MHz */
+ { 12000000, 608000000, 608, 12, 1, 12},
+ { 13000000, 608000000, 608, 13, 1, 12},
+ { 19200000, 608000000, 380, 12, 1, 8},
+ { 26000000, 608000000, 608, 26, 1, 12},
+
+ /* 456 MHz */
+ { 12000000, 456000000, 456, 12, 1, 12},
+ { 13000000, 456000000, 456, 13, 1, 12},
+ { 19200000, 456000000, 380, 16, 1, 8},
+ { 26000000, 456000000, 456, 26, 1, 12},
+
+ /* 312 MHz */
+ { 12000000, 312000000, 312, 12, 1, 12},
+ { 13000000, 312000000, 312, 13, 1, 12},
+ { 19200000, 312000000, 260, 16, 1, 8},
+ { 26000000, 312000000, 312, 26, 1, 12},
+
+ { 0, 0, 0, 0, 0, 0 },
+};
+
+static struct tegra_clk_pll_freq_table pll_e_freq_table[] = {
+ { 12000000, 100000000, 200, 24, 1, 0 },
+ { 0, 0, 0, 0, 0, 0 },
+};
+
+/* PLL parameters */
+static struct tegra_clk_pll_params pll_c_params = {
+ .input_min = 2000000,
+ .input_max = 31000000,
+ .cf_min = 1000000,
+ .cf_max = 6000000,
+ .vco_min = 20000000,
+ .vco_max = 1400000000,
+ .base_reg = PLLC_BASE,
+ .misc_reg = PLLC_MISC,
+ .lock_bit_idx = PLL_BASE_LOCK,
+ .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE,
+ .lock_delay = 300,
+};
+
+static struct tegra_clk_pll_params pll_m_params = {
+ .input_min = 2000000,
+ .input_max = 31000000,
+ .cf_min = 1000000,
+ .cf_max = 6000000,
+ .vco_min = 20000000,
+ .vco_max = 1200000000,
+ .base_reg = PLLM_BASE,
+ .misc_reg = PLLM_MISC,
+ .lock_bit_idx = PLL_BASE_LOCK,
+ .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE,
+ .lock_delay = 300,
+};
+
+static struct tegra_clk_pll_params pll_p_params = {
+ .input_min = 2000000,
+ .input_max = 31000000,
+ .cf_min = 1000000,
+ .cf_max = 6000000,
+ .vco_min = 20000000,
+ .vco_max = 1400000000,
+ .base_reg = PLLP_BASE,
+ .misc_reg = PLLP_MISC,
+ .lock_bit_idx = PLL_BASE_LOCK,
+ .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE,
+ .lock_delay = 300,
+};
+
+static struct tegra_clk_pll_params pll_a_params = {
+ .input_min = 2000000,
+ .input_max = 31000000,
+ .cf_min = 1000000,
+ .cf_max = 6000000,
+ .vco_min = 20000000,
+ .vco_max = 1400000000,
+ .base_reg = PLLA_BASE,
+ .misc_reg = PLLA_MISC,
+ .lock_bit_idx = PLL_BASE_LOCK,
+ .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE,
+ .lock_delay = 300,
+};
+
+static struct tegra_clk_pll_params pll_d_params = {
+ .input_min = 2000000,
+ .input_max = 40000000,
+ .cf_min = 1000000,
+ .cf_max = 6000000,
+ .vco_min = 40000000,
+ .vco_max = 1000000000,
+ .base_reg = PLLD_BASE,
+ .misc_reg = PLLD_MISC,
+ .lock_bit_idx = PLL_BASE_LOCK,
+ .lock_enable_bit_idx = PLLDU_MISC_LOCK_ENABLE,
+ .lock_delay = 1000,
+};
+
+static struct tegra_clk_pll_params pll_u_params = {
+ .input_min = 2000000,
+ .input_max = 40000000,
+ .cf_min = 1000000,
+ .cf_max = 6000000,
+ .vco_min = 48000000,
+ .vco_max = 960000000,
+ .base_reg = PLLU_BASE,
+ .misc_reg = PLLU_MISC,
+ .lock_bit_idx = PLL_BASE_LOCK,
+ .lock_enable_bit_idx = PLLDU_MISC_LOCK_ENABLE,
+ .lock_delay = 1000,
+};
+
+static struct tegra_clk_pll_params pll_x_params = {
+ .input_min = 2000000,
+ .input_max = 31000000,
+ .cf_min = 1000000,
+ .cf_max = 6000000,
+ .vco_min = 20000000,
+ .vco_max = 1200000000,
+ .base_reg = PLLX_BASE,
+ .misc_reg = PLLX_MISC,
+ .lock_bit_idx = PLL_BASE_LOCK,
+ .lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE,
+ .lock_delay = 300,
+};
+
+static struct tegra_clk_pll_params pll_e_params = {
+ .input_min = 12000000,
+ .input_max = 12000000,
+ .cf_min = 0,
+ .cf_max = 0,
+ .vco_min = 0,
+ .vco_max = 0,
+ .base_reg = PLLE_BASE,
+ .misc_reg = PLLE_MISC,
+ .lock_bit_idx = PLLE_MISC_LOCK,
+ .lock_enable_bit_idx = PLLE_MISC_LOCK_ENABLE,
+ .lock_delay = 0,
+};
+
+/* Peripheral clock registers */
+static struct tegra_clk_periph_regs periph_l_regs = {
+ .enb_reg = CLK_OUT_ENB_L,
+ .enb_set_reg = CLK_OUT_ENB_SET_L,
+ .enb_clr_reg = CLK_OUT_ENB_CLR_L,
+ .rst_reg = RST_DEVICES_L,
+ .rst_set_reg = RST_DEVICES_SET_L,
+ .rst_clr_reg = RST_DEVICES_CLR_L,
+};
+
+static struct tegra_clk_periph_regs periph_h_regs = {
+ .enb_reg = CLK_OUT_ENB_H,
+ .enb_set_reg = CLK_OUT_ENB_SET_H,
+ .enb_clr_reg = CLK_OUT_ENB_CLR_H,
+ .rst_reg = RST_DEVICES_H,
+ .rst_set_reg = RST_DEVICES_SET_H,
+ .rst_clr_reg = RST_DEVICES_CLR_H,
+};
+
+static struct tegra_clk_periph_regs periph_u_regs = {
+ .enb_reg = CLK_OUT_ENB_U,
+ .enb_set_reg = CLK_OUT_ENB_SET_U,
+ .enb_clr_reg = CLK_OUT_ENB_CLR_U,
+ .rst_reg = RST_DEVICES_U,
+ .rst_set_reg = RST_DEVICES_SET_U,
+ .rst_clr_reg = RST_DEVICES_CLR_U,
+};
+
+static unsigned long tegra20_clk_measure_input_freq(void)
+{
+ u32 osc_ctrl = readl_relaxed(clk_base + OSC_CTRL);
+ u32 auto_clk_control = osc_ctrl & OSC_CTRL_OSC_FREQ_MASK;
+ u32 pll_ref_div = osc_ctrl & OSC_CTRL_PLL_REF_DIV_MASK;
+ unsigned long input_freq;
+
+ switch (auto_clk_control) {
+ case OSC_CTRL_OSC_FREQ_12MHZ:
+ BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
+ input_freq = 12000000;
+ break;
+ case OSC_CTRL_OSC_FREQ_13MHZ:
+ BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
+ input_freq = 13000000;
+ break;
+ case OSC_CTRL_OSC_FREQ_19_2MHZ:
+ BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
+ input_freq = 19200000;
+ break;
+ case OSC_CTRL_OSC_FREQ_26MHZ:
+ BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
+ input_freq = 26000000;
+ break;
+ default:
+ pr_err("Unexpected clock autodetect value %d",
+ auto_clk_control);
+ BUG();
+ return 0;
+ }
+
+ return input_freq;
+}
+
+static unsigned int tegra20_get_pll_ref_div(void)
+{
+ u32 pll_ref_div = readl_relaxed(clk_base + OSC_CTRL) &
+ OSC_CTRL_PLL_REF_DIV_MASK;
+
+ switch (pll_ref_div) {
+ case OSC_CTRL_PLL_REF_DIV_1:
+ return 1;
+ case OSC_CTRL_PLL_REF_DIV_2:
+ return 2;
+ case OSC_CTRL_PLL_REF_DIV_4:
+ return 4;
+ default:
+ pr_err("Invalied pll ref divider %d\n", pll_ref_div);
+ BUG();
+ }
+ return 0;
+}
+
+static void tegra20_pll_init(void)
+{
+ struct clk *clk;
+
+ /* PLLC */
+ clk = tegra_clk_pll("pll_c", "pll_ref", clk_base, NULL, 0,
+ 0, &pll_c_params, TEGRA_PLL_HAS_CPCON,
+ pll_c_freq_table, NULL);
+ clk_register_clkdev(clk, "pll_c", NULL);
+ clks[pll_c] = clk;
+
+ /* PLLC_OUT1 */
+ clk = tegra_clk_divider("pll_c_out1_div", "pll_c",
+ clk_base + PLLC_OUT, 0, TEGRA_DIVIDER_ROUND_UP,
+ 8, 8, 1, NULL);
+ clk = tegra_clk_pll_out("pll_c_out1", "pll_c_out1_div",
+ clk_base + PLLC_OUT, 1, 0, CLK_SET_RATE_PARENT,
+ 0, NULL);
+ clk_register_clkdev(clk, "pll_c_out1", NULL);
+ clks[pll_c_out1] = clk;
+
+ /* PLLP */
+ clk = tegra_clk_pll("pll_p", "pll_ref", clk_base, NULL, 0,
+ 216000000, &pll_p_params, TEGRA_PLL_FIXED |
+ TEGRA_PLL_HAS_CPCON, pll_p_freq_table, NULL);
+ clk_register_clkdev(clk, "pll_p", NULL);
+ clks[pll_p] = clk;
+
+ /* PLLP_OUT1 */
+ clk = tegra_clk_divider("pll_p_out1_div", "pll_p",
+ clk_base + PLLP_OUTA, 0,
+ TEGRA_DIVIDER_FIXED | TEGRA_DIVIDER_ROUND_UP,
+ 8, 8, 1, &pll_div_lock);
+ clk = tegra_clk_pll_out("pll_p_out1", "pll_p_out1_div",
+ clk_base + PLLP_OUTA, 1, 0,
+ CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0,
+ &pll_div_lock);
+ clk_register_clkdev(clk, "pll_p_out1", NULL);
+ clks[pll_p_out1] = clk;
+
+ /* PLLP_OUT2 */
+ clk = tegra_clk_divider("pll_p_out2_div", "pll_p",
+ clk_base + PLLP_OUTA, 0,
+ TEGRA_DIVIDER_FIXED | TEGRA_DIVIDER_ROUND_UP,
+ 24, 8, 1, &pll_div_lock);
+ clk = tegra_clk_pll_out("pll_p_out2", "pll_p_out2_div",
+ clk_base + PLLP_OUTA, 17, 16,
+ CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0,
+ &pll_div_lock);
+ clk_register_clkdev(clk, "pll_p_out2", NULL);
+ clks[pll_p_out2] = clk;
+
+ /* PLLP_OUT3 */
+ clk = tegra_clk_divider("pll_p_out3_div", "pll_p",
+ clk_base + PLLP_OUTB, 0,
+ TEGRA_DIVIDER_FIXED | TEGRA_DIVIDER_ROUND_UP,
+ 8, 8, 1, &pll_div_lock);
+ clk = tegra_clk_pll_out("pll_p_out3", "pll_p_out3_div",
+ clk_base + PLLP_OUTB, 1, 0,
+ CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0,
+ &pll_div_lock);
+ clk_register_clkdev(clk, "pll_p_out3", NULL);
+ clks[pll_p_out3] = clk;
+
+ /* PLLP_OUT4 */
+ clk = tegra_clk_divider("pll_p_out4_div", "pll_p",
+ clk_base + PLLP_OUTB, 0,
+ TEGRA_DIVIDER_FIXED | TEGRA_DIVIDER_ROUND_UP,
+ 24, 8, 1, &pll_div_lock);
+ clk = tegra_clk_pll_out("pll_p_out4", "pll_p_out4_div",
+ clk_base + PLLP_OUTB, 17, 16,
+ CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT, 0,
+ &pll_div_lock);
+ clk_register_clkdev(clk, "pll_p_out4", NULL);
+ clks[pll_p_out4] = clk;
+
+ /* PLLM */
+ clk = tegra_clk_pll("pll_m", "pll_ref", clk_base, NULL,
+ CLK_IGNORE_UNUSED | CLK_SET_RATE_GATE, 0,
+ &pll_m_params, TEGRA_PLL_HAS_CPCON,
+ pll_m_freq_table, NULL);
+ clk_register_clkdev(clk, "pll_m", NULL);
+ clks[pll_m] = clk;
+
+ /* PLLM_OUT1 */
+ clk = tegra_clk_divider("pll_m_out1_div", "pll_m",
+ clk_base + PLLM_OUT, 0, TEGRA_DIVIDER_ROUND_UP,
+ 8, 8, 1, NULL);
+ clk = tegra_clk_pll_out("pll_m_out1", "pll_m_out1_div",
+ clk_base + PLLM_OUT, 1, 0, CLK_IGNORE_UNUSED |
+ CLK_SET_RATE_PARENT, 0, NULL);
+ clk_register_clkdev(clk, "pll_m_out1", NULL);
+ clks[pll_m_out1] = clk;
+
+ /* PLLX */
+ clk = tegra_clk_pll("pll_x", "pll_ref", clk_base, NULL, 0,
+ 0, &pll_x_params, TEGRA_PLL_HAS_CPCON,
+ pll_x_freq_table, NULL);
+ clk_register_clkdev(clk, "pll_x", NULL);
+ clks[pll_x] = clk;
+
+ /* PLLU */
+ clk = tegra_clk_pll("pll_u", "pll_ref", clk_base, NULL, 0,
+ 0, &pll_u_params, TEGRA_PLLU | TEGRA_PLL_HAS_CPCON,
+ pll_u_freq_table, NULL);
+ clk_register_clkdev(clk, "pll_u", NULL);
+ clks[pll_u] = clk;
+
+ /* PLLD */
+ clk = tegra_clk_pll("pll_d", "pll_ref", clk_base, NULL, 0,
+ 0, &pll_d_params, TEGRA_PLL_HAS_CPCON,
+ pll_d_freq_table, NULL);
+ clk_register_clkdev(clk, "pll_d", NULL);
+ clks[pll_d] = clk;
+
+ /* PLLD_OUT0 */
+ clk = clk_register_fixed_factor(NULL, "pll_d_out0", "pll_d",
+ CLK_SET_RATE_PARENT, 1, 2);
+ clk_register_clkdev(clk, "pll_d_out0", NULL);
+ clks[pll_d_out0] = clk;
+
+ /* PLLA */
+ clk = tegra_clk_pll("pll_a", "pll_p_out1", clk_base, NULL, 0,
+ 0, &pll_a_params, TEGRA_PLL_HAS_CPCON,
+ pll_a_freq_table, NULL);
+ clk_register_clkdev(clk, "pll_a", NULL);
+ clks[pll_a] = clk;
+
+ /* PLLA_OUT0 */
+ clk = tegra_clk_divider("pll_a_out0_div", "pll_a",
+ clk_base + PLLA_OUT, 0, TEGRA_DIVIDER_ROUND_UP,
+ 8, 8, 1, NULL);
+ clk = tegra_clk_pll_out("pll_a_out0", "pll_a_out0_div",
+ clk_base + PLLA_OUT, 1, 0, CLK_IGNORE_UNUSED |
+ CLK_SET_RATE_PARENT, 0, NULL);
+ clk_register_clkdev(clk, "pll_a_out0", NULL);
+ clks[pll_a_out0] = clk;
+
+ /* PLLE */
+ clk = tegra_clk_plle("pll_e", "pll_ref", clk_base, NULL,
+ 0, 0, &pll_e_params,
+ 0, pll_e_freq_table, NULL);
+ clk_register_clkdev(clk, "pll_e", NULL);
+ clks[pll_e] = clk;
+}
+
+static const char *cclk_parents[] = { "clk_m", "pll_c", "clk_32k", "pll_m",
+ "pll_p_cclk", "pll_p_out4_cclk",
+ "pll_p_out3_cclk", "clk_d", "pll_x" };
+static const char *sclk_parents[] = { "clk_m", "pll_c_out1", "pll_p_out4",
+ "pll_p_out3", "pll_p_out2", "clk_d",
+ "clk_32k", "pll_m_out1" };
+
+static void tegra20_super_clk_init(void)
+{
+ struct clk *clk;
+
+ /*
+ * DIV_U71 dividers for CCLK, these dividers are used only
+ * if parent clock is fixed rate.
+ */
+
+ /*
+ * Clock input to cclk divided from pll_p using
+ * U71 divider of cclk.
+ */
+ clk = tegra_clk_divider("pll_p_cclk", "pll_p",
+ clk_base + SUPER_CCLK_DIVIDER, 0,
+ TEGRA_DIVIDER_INT, 16, 8, 1, NULL);
+ clk_register_clkdev(clk, "pll_p_cclk", NULL);
+
+ /*
+ * Clock input to cclk divided from pll_p_out3 using
+ * U71 divider of cclk.
+ */
+ clk = tegra_clk_divider("pll_p_out3_cclk", "pll_p_out3",
+ clk_base + SUPER_CCLK_DIVIDER, 0,
+ TEGRA_DIVIDER_INT, 16, 8, 1, NULL);
+ clk_register_clkdev(clk, "pll_p_out3_cclk", NULL);
+
+ /*
+ * Clock input to cclk divided from pll_p_out4 using
+ * U71 divider of cclk.
+ */
+ clk = tegra_clk_divider("pll_p_out4_cclk", "pll_p_out4",
+ clk_base + SUPER_CCLK_DIVIDER, 0,
+ TEGRA_DIVIDER_INT, 16, 8, 1, NULL);
+ clk_register_clkdev(clk, "pll_p_out4_cclk", NULL);
+
+ /* CCLK */
+ clk = tegra_clk_super_mux("cclk", cclk_parents,
+ ARRAY_SIZE(cclk_parents), CLK_SET_RATE_PARENT,
+ clk_base + CCLK_BURST_POLICY, 0, 4, 0, 0, NULL);
+ clk_register_clkdev(clk, "cclk", NULL);
+ clks[cclk] = clk;
+
+ /* SCLK */
+ clk = tegra_clk_super_mux("sclk", sclk_parents,
+ ARRAY_SIZE(sclk_parents), CLK_SET_RATE_PARENT,
+ clk_base + SCLK_BURST_POLICY, 0, 4, 0, 0, NULL);
+ clk_register_clkdev(clk, "sclk", NULL);
+ clks[sclk] = clk;
+
+ /* HCLK */
+ clk = clk_register_divider(NULL, "hclk_div", "sclk", 0,
+ clk_base + CLK_SYSTEM_RATE, 4, 2, 0, NULL);
+ clk = clk_register_gate(NULL, "hclk", "hclk_div", CLK_SET_RATE_PARENT,
+ clk_base + CLK_SYSTEM_RATE, 7,
+ CLK_GATE_SET_TO_DISABLE, NULL);
+ clks[hclk] = clk;
+
+ /* PCLK */
+ clk = clk_register_divider(NULL, "pclk_div", "hclk", 0,
+ clk_base + CLK_SYSTEM_RATE, 0, 2, 0, NULL);
+ clk = clk_register_gate(NULL, "pclk", "pclk_div", CLK_SET_RATE_PARENT,
+ clk_base + CLK_SYSTEM_RATE, 3,
+ CLK_GATE_SET_TO_DISABLE, NULL);
+ clks[pclk] = clk;
+
+ /* twd */
+ clk = clk_register_fixed_factor(NULL, "twd", "cclk", 0, 1, 4);
+ clk_register_clkdev(clk, "twd", NULL);
+ clks[twd] = clk;
+}
+
+static const char *audio_parents[] = {"spdif_in", "i2s1", "i2s2", "unused",
+ "pll_a_out0", "unused", "unused",
+ "unused"};
+
+static void __init tegra20_audio_clk_init(void)
+{
+ struct clk *clk;
+
+ /* audio */
+ clk = clk_register_mux(NULL, "audio_mux", audio_parents,
+ ARRAY_SIZE(audio_parents), 0,
+ clk_base + AUDIO_SYNC_CLK, 0, 3, 0, NULL);
+ clks[audio_mux] = clk;
+ clk = clk_register_gate(NULL, "audio", "audio_mux", 0,
+ clk_base + AUDIO_SYNC_CLK, 4,
+ CLK_GATE_SET_TO_DISABLE, NULL);
+ clk_register_clkdev(clk, "audio", NULL);
+ clks[audio] = clk;
+
+ /* audio_2x */
+ clk = clk_register_fixed_factor(NULL, "audio_doubler", "audio",
+ CLK_SET_RATE_PARENT, 2, 1);
+ clk = tegra_clk_periph_gate("audio_2x", "audio_doubler",
+ TEGRA_PERIPH_NO_RESET, clk_base, NULL,
+ CLK_SET_RATE_PARENT, 89, &periph_u_regs,
+ periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "audio_2x", NULL);
+ clks[audio_2x] = clk;
+
+}
+
+static const char *i2s1_parents[] = {"pll_a_out0", "audio_2x", "pll_p",
+ "clk_m"};
+static const char *i2s2_parents[] = {"pll_a_out0", "audio_2x", "pll_p",
+ "clk_m"};
+static const char *spdif_out_parents[] = {"pll_a_out0", "audio_2x", "pll_p",
+ "clk_m"};
+static const char *spdif_in_parents[] = {"pll_p", "pll_c", "pll_m"};
+static const char *pwm_parents[] = {"pll_p", "pll_c", "audio", "clk_m",
+ "clk_32k"};
+static const char *mux_pllpcm_clkm[] = {"pll_p", "pll_c", "pll_m", "clk_m"};
+static const char *mux_pllmcpa[] = {"pll_m", "pll_c", "pll_c", "pll_a"};
+static const char *mux_pllpdc_clkm[] = {"pll_p", "pll_d", "pll_c", "clk_m"};
+static const char *mux_pllmcp_clkm[] = {"pll_m", "pll_c", "pll_p", "clk_m"};
+
+static struct tegra_periph_init_data tegra_periph_clk_list[] = {
+ TEGRA_INIT_DATA_MUX("i2s1", NULL, "tegra20-i2s.0", i2s1_parents, CLK_SOURCE_I2S1, 11, &periph_l_regs, TEGRA_PERIPH_ON_APB, i2s1),
+ TEGRA_INIT_DATA_MUX("i2s2", NULL, "tegra20-i2s.1", i2s2_parents, CLK_SOURCE_I2S2, 18, &periph_l_regs, TEGRA_PERIPH_ON_APB, i2s2),
+ TEGRA_INIT_DATA_MUX("spdif_out", "spdif_out", "tegra20-spdif", spdif_out_parents, CLK_SOURCE_SPDIF_OUT, 10, &periph_l_regs, TEGRA_PERIPH_ON_APB, spdif_out),
+ TEGRA_INIT_DATA_MUX("spdif_in", "spdif_in", "tegra20-spdif", spdif_in_parents, CLK_SOURCE_SPDIF_IN, 10, &periph_l_regs, TEGRA_PERIPH_ON_APB, spdif_in),
+ TEGRA_INIT_DATA_MUX("sbc1", NULL, "spi_tegra.0", mux_pllpcm_clkm, CLK_SOURCE_SBC1, 41, &periph_h_regs, TEGRA_PERIPH_ON_APB, sbc1),
+ TEGRA_INIT_DATA_MUX("sbc2", NULL, "spi_tegra.1", mux_pllpcm_clkm, CLK_SOURCE_SBC2, 44, &periph_h_regs, TEGRA_PERIPH_ON_APB, sbc2),
+ TEGRA_INIT_DATA_MUX("sbc3", NULL, "spi_tegra.2", mux_pllpcm_clkm, CLK_SOURCE_SBC3, 46, &periph_h_regs, TEGRA_PERIPH_ON_APB, sbc3),
+ TEGRA_INIT_DATA_MUX("sbc4", NULL, "spi_tegra.3", mux_pllpcm_clkm, CLK_SOURCE_SBC4, 68, &periph_u_regs, TEGRA_PERIPH_ON_APB, sbc4),
+ TEGRA_INIT_DATA_MUX("spi", NULL, "spi", mux_pllpcm_clkm, CLK_SOURCE_SPI, 43, &periph_h_regs, TEGRA_PERIPH_ON_APB, spi),
+ TEGRA_INIT_DATA_MUX("xio", NULL, "xio", mux_pllpcm_clkm, CLK_SOURCE_XIO, 45, &periph_h_regs, 0, xio),
+ TEGRA_INIT_DATA_MUX("twc", NULL, "twc", mux_pllpcm_clkm, CLK_SOURCE_TWC, 16, &periph_l_regs, TEGRA_PERIPH_ON_APB, twc),
+ TEGRA_INIT_DATA_MUX("ide", NULL, "ide", mux_pllpcm_clkm, CLK_SOURCE_XIO, 25, &periph_l_regs, 0, ide),
+ TEGRA_INIT_DATA_MUX("ndflash", NULL, "tegra_nand", mux_pllpcm_clkm, CLK_SOURCE_NDFLASH, 13, &periph_l_regs, 0, ndflash),
+ TEGRA_INIT_DATA_MUX("vfir", NULL, "vfir", mux_pllpcm_clkm, CLK_SOURCE_VFIR, 7, &periph_l_regs, TEGRA_PERIPH_ON_APB, vfir),
+ TEGRA_INIT_DATA_MUX("csite", NULL, "csite", mux_pllpcm_clkm, CLK_SOURCE_CSITE, 73, &periph_u_regs, 0, csite),
+ TEGRA_INIT_DATA_MUX("la", NULL, "la", mux_pllpcm_clkm, CLK_SOURCE_LA, 76, &periph_u_regs, 0, la),
+ TEGRA_INIT_DATA_MUX("owr", NULL, "tegra_w1", mux_pllpcm_clkm, CLK_SOURCE_OWR, 71, &periph_u_regs, TEGRA_PERIPH_ON_APB, owr),
+ TEGRA_INIT_DATA_MUX("mipi", NULL, "mipi", mux_pllpcm_clkm, CLK_SOURCE_MIPI, 50, &periph_h_regs, TEGRA_PERIPH_ON_APB, mipi),
+ TEGRA_INIT_DATA_MUX("vde", NULL, "vde", mux_pllpcm_clkm, CLK_SOURCE_VDE, 61, &periph_h_regs, 0, vde),
+ TEGRA_INIT_DATA_MUX("vi", "vi", "tegra_camera", mux_pllmcpa, CLK_SOURCE_VI, 20, &periph_l_regs, 0, vi),
+ TEGRA_INIT_DATA_MUX("epp", NULL, "epp", mux_pllmcpa, CLK_SOURCE_EPP, 19, &periph_l_regs, 0, epp),
+ TEGRA_INIT_DATA_MUX("mpe", NULL, "mpe", mux_pllmcpa, CLK_SOURCE_MPE, 60, &periph_h_regs, 0, mpe),
+ TEGRA_INIT_DATA_MUX("host1x", NULL, "host1x", mux_pllmcpa, CLK_SOURCE_HOST1X, 28, &periph_l_regs, 0, host1x),
+ TEGRA_INIT_DATA_MUX("3d", NULL, "3d", mux_pllmcpa, CLK_SOURCE_3D, 24, &periph_l_regs, TEGRA_PERIPH_MANUAL_RESET, gr3d),
+ TEGRA_INIT_DATA_MUX("2d", NULL, "2d", mux_pllmcpa, CLK_SOURCE_2D, 21, &periph_l_regs, 0, gr2d),
+ TEGRA_INIT_DATA_MUX("nor", NULL, "tegra-nor", mux_pllpcm_clkm, CLK_SOURCE_NOR, 42, &periph_h_regs, 0, nor),
+ TEGRA_INIT_DATA_MUX("sdmmc1", NULL, "sdhci-tegra.0", mux_pllpcm_clkm, CLK_SOURCE_SDMMC1, 14, &periph_l_regs, 0, sdmmc1),
+ TEGRA_INIT_DATA_MUX("sdmmc2", NULL, "sdhci-tegra.1", mux_pllpcm_clkm, CLK_SOURCE_SDMMC2, 9, &periph_l_regs, 0, sdmmc2),
+ TEGRA_INIT_DATA_MUX("sdmmc3", NULL, "sdhci-tegra.2", mux_pllpcm_clkm, CLK_SOURCE_SDMMC3, 69, &periph_u_regs, 0, sdmmc3),
+ TEGRA_INIT_DATA_MUX("sdmmc4", NULL, "sdhci-tegra.3", mux_pllpcm_clkm, CLK_SOURCE_SDMMC4, 15, &periph_l_regs, 0, sdmmc4),
+ TEGRA_INIT_DATA_MUX("cve", NULL, "cve", mux_pllpdc_clkm, CLK_SOURCE_CVE, 49, &periph_h_regs, 0, cve),
+ TEGRA_INIT_DATA_MUX("tvo", NULL, "tvo", mux_pllpdc_clkm, CLK_SOURCE_TVO, 49, &periph_h_regs, 0, tvo),
+ TEGRA_INIT_DATA_MUX("tvdac", NULL, "tvdac", mux_pllpdc_clkm, CLK_SOURCE_TVDAC, 53, &periph_h_regs, 0, tvdac),
+ TEGRA_INIT_DATA_MUX("vi_sensor", "vi_sensor", "tegra_camera", mux_pllmcpa, CLK_SOURCE_VI_SENSOR, 20, &periph_l_regs, TEGRA_PERIPH_NO_RESET, vi_sensor),
+ TEGRA_INIT_DATA_DIV16("i2c1", "div-clk", "tegra-i2c.0", mux_pllpcm_clkm, CLK_SOURCE_I2C1, 12, &periph_l_regs, TEGRA_PERIPH_ON_APB, i2c1),
+ TEGRA_INIT_DATA_DIV16("i2c2", "div-clk", "tegra-i2c.1", mux_pllpcm_clkm, CLK_SOURCE_I2C2, 54, &periph_h_regs, TEGRA_PERIPH_ON_APB, i2c2),
+ TEGRA_INIT_DATA_DIV16("i2c3", "div-clk", "tegra-i2c.2", mux_pllpcm_clkm, CLK_SOURCE_I2C3, 67, &periph_u_regs, TEGRA_PERIPH_ON_APB, i2c3),
+ TEGRA_INIT_DATA_DIV16("dvc", "div-clk", "tegra-i2c.3", mux_pllpcm_clkm, CLK_SOURCE_DVC, 47, &periph_h_regs, TEGRA_PERIPH_ON_APB, dvc),
+ TEGRA_INIT_DATA_MUX("hdmi", NULL, "hdmi", mux_pllpdc_clkm, CLK_SOURCE_HDMI, 51, &periph_h_regs, 0, hdmi),
+ TEGRA_INIT_DATA("pwm", NULL, "pwm", pwm_parents, CLK_SOURCE_PWM, 28, 2, 0, 0, 8, 1, 0, &periph_l_regs, 17, periph_clk_enb_refcnt, TEGRA_PERIPH_ON_APB, pwm),
+};
+
+static struct tegra_periph_init_data tegra_periph_nodiv_clk_list[] = {
+ TEGRA_INIT_DATA_NODIV("uarta", NULL, "tegra_uart.0", mux_pllpcm_clkm, CLK_SOURCE_UARTA, 30, 2, 6, &periph_l_regs, TEGRA_PERIPH_ON_APB, uarta),
+ TEGRA_INIT_DATA_NODIV("uartb", NULL, "tegra_uart.1", mux_pllpcm_clkm, CLK_SOURCE_UARTB, 30, 2, 7, &periph_l_regs, TEGRA_PERIPH_ON_APB, uartb),
+ TEGRA_INIT_DATA_NODIV("uartc", NULL, "tegra_uart.2", mux_pllpcm_clkm, CLK_SOURCE_UARTC, 30, 2, 55, &periph_h_regs, TEGRA_PERIPH_ON_APB, uartc),
+ TEGRA_INIT_DATA_NODIV("uartd", NULL, "tegra_uart.3", mux_pllpcm_clkm, CLK_SOURCE_UARTD, 30, 2, 65, &periph_u_regs, TEGRA_PERIPH_ON_APB, uartd),
+ TEGRA_INIT_DATA_NODIV("uarte", NULL, "tegra_uart.4", mux_pllpcm_clkm, CLK_SOURCE_UARTE, 30, 2, 66, &periph_u_regs, TEGRA_PERIPH_ON_APB, uarte),
+ TEGRA_INIT_DATA_NODIV("disp1", NULL, "tegradc.0", mux_pllpdc_clkm, CLK_SOURCE_DISP1, 30, 2, 27, &periph_l_regs, 0, disp1),
+ TEGRA_INIT_DATA_NODIV("disp2", NULL, "tegradc.1", mux_pllpdc_clkm, CLK_SOURCE_DISP2, 30, 2, 26, &periph_l_regs, 0, disp2),
+};
+
+static void __init tegra20_periph_clk_init(void)
+{
+ struct tegra_periph_init_data *data;
+ struct clk *clk;
+ int i;
+
+ /* apbdma */
+ clk = tegra_clk_periph_gate("apbdma", "clk_m", 0, clk_base,
+ NULL, 0, 34, &periph_h_regs,
+ periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, NULL, "tegra-apbdma");
+ clks[apbdma] = clk;
+
+ /* rtc */
+ clk = tegra_clk_periph_gate("rtc", "clk_32k", TEGRA_PERIPH_NO_RESET,
+ clk_base, NULL, 0,
+ 4, &periph_l_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, NULL, "rtc-tegra");
+ clks[rtc] = clk;
+
+ /* timer */
+ clk = tegra_clk_periph_gate("timer", "clk_m", 0, clk_base,
+ NULL, 0, 5, &periph_l_regs,
+ periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, NULL, "timer");
+ clks[timer] = clk;
+
+ /* csus */
+ clk = tegra_clk_periph_gate("csus", "clk_m", TEGRA_PERIPH_NO_RESET,
+ clk_base, NULL, 0, 92, &periph_u_regs,
+ periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "csus", "tengra_camera");
+ clks[csus] = clk;
+
+ /* vcp */
+ clk = tegra_clk_periph_gate("vcp", "clk_m", 0,
+ clk_base, NULL, 0,
+ 29, &periph_l_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "vcp", "tegra-avp");
+ clks[vcp] = clk;
+
+ /* bsea */
+ clk = tegra_clk_periph_gate("bsea", "clk_m", 0,
+ clk_base, NULL, 0,
+ 62, &periph_h_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "bsea", "tegra-avp");
+ clks[bsea] = clk;
+
+ /* bsev */
+ clk = tegra_clk_periph_gate("bsev", "clk_m", 0,
+ clk_base, NULL, 0,
+ 63, &periph_h_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "bsev", "tegra-aes");
+ clks[bsev] = clk;
+
+ /* emc */
+ clk = clk_register_mux(NULL, "emc_mux", mux_pllmcp_clkm,
+ ARRAY_SIZE(mux_pllmcp_clkm), 0,
+ clk_base + CLK_SOURCE_EMC,
+ 30, 2, 0, NULL);
+ clks[emc_mux] = clk;
+ clk = tegra_clk_periph_gate("emc", "emc_mux", 0, clk_base, NULL, 0,
+ 57, &periph_h_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "emc", NULL);
+ clks[emc] = clk;
+
+ /* usbd */
+ clk = tegra_clk_periph_gate("usbd", "clk_m", 0,
+ clk_base, NULL, 0,
+ 22, &periph_l_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, NULL, "fsl-tegra-udc");
+ clks[usbd] = clk;
+
+ /* usb2 */
+ clk = tegra_clk_periph_gate("usb2", "clk_m", 0,
+ clk_base, NULL, 0,
+ 58, &periph_h_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, NULL, "tegra-ehci.1");
+ clks[usb2] = clk;
+
+ /* usb3 */
+ clk = tegra_clk_periph_gate("usb3", "clk_m", 0,
+ clk_base, NULL, 0,
+ 59, &periph_l_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, NULL, "tegra-ehci.2");
+ clks[usb3] = clk;
+
+ /* dsi */
+ clk = tegra_clk_periph_gate("dsi", "pll_d_out0", 0,
+ clk_base, NULL, 0,
+ 48, &periph_h_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, NULL, "dsi");
+ clks[dsi] = clk;
+
+ /* csi */
+ clk = tegra_clk_periph_gate("csi", "pll_p_out3", 0,
+ clk_base, NULL, 0,
+ 52, &periph_h_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "csi", "tegra_camera");
+ clks[csi] = clk;
+
+ /* isp */
+ clk = tegra_clk_periph_gate("isp", "clk_m", 0,
+ clk_base, NULL, 0,
+ 23, &periph_l_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "isp", "tegra_camera");
+ clks[isp] = clk;
+
+ /* pex */
+ clk = tegra_clk_periph_gate("pex", "clk_m", 0,
+ clk_base, NULL, 0,
+ 70, &periph_u_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "pex", NULL);
+ clks[pex] = clk;
+
+ /* afi */
+ clk = tegra_clk_periph_gate("afi", "clk_m", 0,
+ clk_base, NULL, 0,
+ 72, &periph_u_regs, periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "afi", NULL);
+ clks[afi] = clk;
+
+ /* cdev1 */
+ clk = clk_register_fixed_rate(NULL, "cdev1_fixed", NULL, CLK_IS_ROOT,
+ 26000000);
+ clk = tegra_clk_periph_gate("cdev1", "cdev1_fixed", 0, clk_base, NULL,
+ 0, 94, &periph_h_regs,
+ periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "cdev1", NULL);
+ clks[cdev1] = clk;
+
+ /* cdev2 */
+ clk = clk_register_fixed_rate(NULL, "cdev2_fixed", NULL, CLK_IS_ROOT,
+ 26000000);
+ clk = tegra_clk_periph_gate("cdev2", "cdev2_fixed", 0, clk_base, NULL,
+ 0, 93, &periph_h_regs,
+ periph_clk_enb_refcnt);
+ clk_register_clkdev(clk, "cdev2", NULL);
+ clks[cdev2] = clk;
+
+ for (i = 0; i < ARRAY_SIZE(tegra_periph_clk_list); i++) {
+ data = &tegra_periph_clk_list[i];
+ clk = tegra_clk_periph(data->name, data->parent_names,
+ data->num_parents, &data->periph,
+ clk_base, data->offset, apb_base);
+ clk_register_clkdev(clk, data->con_id, data->dev_id);
+ clks[data->clk_id] = clk;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(tegra_periph_nodiv_clk_list); i++) {
+ data = &tegra_periph_nodiv_clk_list[i];
+ clk = tegra_clk_periph_nodiv(data->name, data->parent_names,
+ data->num_parents, &data->periph,
+ clk_base, data->offset, apb_base);
+ clk_register_clkdev(clk, data->con_id, data->dev_id);
+ clks[data->clk_id] = clk;
+ }
+}
+
+
+static void __init tegra20_fixed_clk_init(void)
+{
+ struct clk *clk;
+
+ /* clk_32k */
+ clk = clk_register_fixed_rate(NULL, "clk_32k", NULL, CLK_IS_ROOT,
+ 32768);
+ clk_register_clkdev(clk, "clk_32k", NULL);
+ clks[clk_32k] = clk;
+}
+
+static void __init tegra20_pmc_clk_init(void)
+{
+ struct clk *clk;
+
+ /* blink */
+ clk = clk_register_gate(NULL, "blink_override", "clk_32k", 0,
+ pmc_base + PMC_DPD_PADS_ORIDE,
+ PMC_DPD_PADS_ORIDE_BLINK_ENB, 0, NULL);
+ clk = clk_register_gate(NULL, "blink", "blink_override", 0,
+ pmc_base + PMC_CTRL,
+ PMC_CTRL_BLINK_ENB, 0, NULL);
+ clk_register_clkdev(clk, "blink", NULL);
+ clks[blink] = clk;
+}
+
+static void __init tegra20_osc_clk_init(void)
+{
+ struct clk *clk;
+ unsigned long input_freq;
+ unsigned int pll_ref_div;
+
+ input_freq = tegra20_clk_measure_input_freq();
+
+ /* clk_m */
+ clk = clk_register_fixed_rate(NULL, "clk_m", NULL, CLK_IS_ROOT |
+ CLK_IGNORE_UNUSED, input_freq);
+ clk_register_clkdev(clk, "clk_m", NULL);
+ clks[clk_m] = clk;
+
+ /* pll_ref */
+ pll_ref_div = tegra20_get_pll_ref_div();
+ clk = clk_register_fixed_factor(NULL, "pll_ref", "clk_m",
+ CLK_SET_RATE_PARENT, 1, pll_ref_div);
+ clk_register_clkdev(clk, "pll_ref", NULL);
+ clks[pll_ref] = clk;
+}
+
+/* Tegra20 CPU clock and reset control functions */
+static void tegra20_wait_cpu_in_reset(u32 cpu)
+{
+ unsigned int reg;
+
+ do {
+ reg = readl(clk_base +
+ TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET);
+ cpu_relax();
+ } while (!(reg & (1 << cpu))); /* check CPU been reset or not */
+
+ return;
+}
+
+static void tegra20_put_cpu_in_reset(u32 cpu)
+{
+ writel(CPU_RESET(cpu),
+ clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET);
+ dmb();
+}
+
+static void tegra20_cpu_out_of_reset(u32 cpu)
+{
+ writel(CPU_RESET(cpu),
+ clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR);
+ wmb();
+}
+
+static void tegra20_enable_cpu_clock(u32 cpu)
+{
+ unsigned int reg;
+
+ reg = readl(clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
+ writel(reg & ~CPU_CLOCK(cpu),
+ clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
+ barrier();
+ reg = readl(clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
+}
+
+static void tegra20_disable_cpu_clock(u32 cpu)
+{
+ unsigned int reg;
+
+ reg = readl(clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
+ writel(reg | CPU_CLOCK(cpu),
+ clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX);
+}
+
+static struct tegra_cpu_car_ops tegra20_cpu_car_ops = {
+ .wait_for_reset = tegra20_wait_cpu_in_reset,
+ .put_in_reset = tegra20_put_cpu_in_reset,
+ .out_of_reset = tegra20_cpu_out_of_reset,
+ .enable_clock = tegra20_enable_cpu_clock,
+ .disable_clock = tegra20_disable_cpu_clock,
+};
+
+static __initdata struct tegra_clk_init_table init_table[] = {
+ {pll_p, clk_max, 216000000, 1},
+ {pll_p_out1, clk_max, 28800000, 1},
+ {pll_p_out2, clk_max, 48000000, 1},
+ {pll_p_out3, clk_max, 72000000, 1},
+ {pll_p_out4, clk_max, 108000000, 1},
+ {pll_c, clk_max, 600000000, 1},
+ {pll_c_out1, clk_max, 120000000, 1},
+ {sclk, pll_c_out1, 0, 1},
+ {hclk, clk_max, 0, 1},
+ {pclk, clk_max, 0, 1},
+ {csite, clk_max, 0, 1},
+ {emc, clk_max, 0, 1},
+ {cclk, clk_max, 0, 1},
+ {uarta, clk_max, 0, 1},
+ {uartd, clk_max, 0, 1},
+ {usbd, clk_max, 12000000, 0},
+ {usb2, clk_max, 12000000, 0},
+ {usb3, clk_max, 12000000, 0},
+ {pll_a, clk_max, 56448000, 1},
+ {pll_a_out0, clk_max, 11289600, 1},
+ {cdev1, clk_max, 0, 1},
+ {blink, clk_max, 32768, 1},
+ {i2s1, pll_a_out0, 11289600, 0},
+ {i2s2, pll_a_out0, 11289600, 0},
+ {sdmmc1, pll_p, 48000000, 0},
+ {sdmmc2, pll_p, 48000000, 0},
+ {sdmmc3, pll_p, 48000000, 0},
+ {clk_max, clk_max, 0, 0}, /* This MUST be the last entry */
+};
+
+/*
+ * Some clocks may be used by different drivers depending on the board
+ * configuration. List those here to register them twice in the clock lookup
+ * table under two names.
+ */
+static __initdata struct tegra_clk_duplicate tegra_clk_duplicates[] = {
+ TEGRA_CLK_DUPLICATE(uarta, "serial8250.0", NULL),
+ TEGRA_CLK_DUPLICATE(uartb, "serial8250.1", NULL),
+ TEGRA_CLK_DUPLICATE(uartc, "serial8250.2", NULL),
+ TEGRA_CLK_DUPLICATE(uartd, "serial8250.3", NULL),
+ TEGRA_CLK_DUPLICATE(uarte, "serial8250.4", NULL),
+ TEGRA_CLK_DUPLICATE(usbd, "utmip-pad", NULL),
+ TEGRA_CLK_DUPLICATE(usbd, "tegra-ehci.0", NULL),
+ TEGRA_CLK_DUPLICATE(usbd, "tegra-otg", NULL),
+ TEGRA_CLK_DUPLICATE(hdmi, "tegradc.0", "hdmi"),
+ TEGRA_CLK_DUPLICATE(hdmi, "tegradc.1", "hdmi"),
+ TEGRA_CLK_DUPLICATE(host1x, "tegra_grhost", "host1x"),
+ TEGRA_CLK_DUPLICATE(gr2d, "tegra_grhost", "gr2d"),
+ TEGRA_CLK_DUPLICATE(gr3d, "tegra_grhost", "gr3d"),
+ TEGRA_CLK_DUPLICATE(epp, "tegra_grhost", "epp"),
+ TEGRA_CLK_DUPLICATE(mpe, "tegra_grhost", "mpe"),
+ TEGRA_CLK_DUPLICATE(vde, "tegra-aes", "vde"),
+ TEGRA_CLK_DUPLICATE(cclk, NULL, "cpu"),
+ TEGRA_CLK_DUPLICATE(twd, "smp_twd", NULL),
+ TEGRA_CLK_DUPLICATE(pll_p_out3, "tegra-i2c.0", "fast-clk"),
+ TEGRA_CLK_DUPLICATE(pll_p_out3, "tegra-i2c.1", "fast-clk"),
+ TEGRA_CLK_DUPLICATE(pll_p_out3, "tegra-i2c.2", "fast-clk"),
+ TEGRA_CLK_DUPLICATE(pll_p_out3, "tegra-i2c.3", "fast-clk"),
+ TEGRA_CLK_DUPLICATE(clk_max, NULL, NULL), /* Must be the last entry */
+};
+
+static const struct of_device_id pmc_match[] __initconst = {
+ { .compatible = "nvidia,tegra20-pmc" },
+ {},
+};
+
+static const struct of_device_id apb_match[] __initconst = {
+ { .compatible = "nvidia,tegra20-apbmisc" },
+ {},
+};
+
+void __init tegra20_clock_init(struct device_node *np)
+{
+ int i;
+ struct device_node *node;
+
+ clk_base = of_iomap(np, 0);
+ if (!clk_base) {
+ pr_err("Can't map CAR registers\n");
+ BUG();
+ }
+
+ node = of_find_matching_node(NULL, pmc_match);
+ if (!node) {
+ pr_err("Failed to find pmc node\n");
+ BUG();
+ }
+
+ pmc_base = of_iomap(node, 0);
+ if (!pmc_base) {
+ pr_err("Can't map pmc registers\n");
+ BUG();
+ }
+
+ node = of_find_matching_node(NULL, apb_match);
+ if (!node) {
+ pr_err("Failed to find apb node\n");
+ BUG();
+ }
+
+ apb_base = of_iomap(node, 0);
+ if (!apb_base) {
+ pr_err("Can't map apb misc registers\n");
+ BUG();
+ }
+
+ tegra20_osc_clk_init();
+ tegra20_fixed_clk_init();
+ tegra20_pll_init();
+ tegra20_super_clk_init();
+ tegra20_periph_clk_init();
+ tegra20_audio_clk_init();
+ tegra20_pmc_clk_init();
+
+ for (i = 0; i < ARRAY_SIZE(clks); i++)
+ if (IS_ERR(clks[i])) {
+ pr_err("Tegra20 clk %d: register failed with %ld\n",
+ i, PTR_ERR(clks[i]));
+ BUG();
+ }
+
+ tegra_init_dup_clks(tegra_clk_duplicates, clks, clk_max);
+
+ clk_data.clks = clks;
+ clk_data.clk_num = ARRAY_SIZE(clks);
+ of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+
+ tegra_init_from_table(init_table, clks, clk_max);
+
+ tegra_cpu_car_ops = &tegra20_cpu_car_ops;
+}
diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h
index 7fdf8e6..7a2d7e7 100644
--- a/drivers/clk/tegra/clk.h
+++ b/drivers/clk/tegra/clk.h
@@ -476,4 +476,10 @@ void tegra_init_from_table(struct tegra_clk_init_table *tbl,
void tegra_init_dup_clks(struct tegra_clk_duplicate *dup_list,
struct clk *clks[], int clk_max);

+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+void tegra20_clock_init(struct device_node *np);
+#else
+static inline void tegra20_clock_init(struct device_node *np) {}
+#endif /* CONFIG_ARCH_TEGRA_2x_SOC */
+
#endif /* TEGRA_CLK_H */
--
1.7.4.1


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