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linux_old1/drivers/clk/pistachio/clk-pistachio.c

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CLK: Pistachio: Register core clocks Register the clocks generated by the core clock controller. This includes the 7 PLLs and clocks for the CPU, RPU co-processor, audio, WiFi, bluetooth, and several other peripherals. The MIPS and PERIPH_SYS clocks must remain enabled at all times. Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Patchwork: https://patchwork.linux-mips.org/patch/9317/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-25 11:56:04 +08:00
/*
* Pistachio SoC clock controllers
*
* Copyright (C) 2014 Google, Inc.
*
* 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.
*/
#include <linux/clk-provider.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <dt-bindings/clock/pistachio-clk.h>
#include "clk.h"
static struct pistachio_gate pistachio_gates[] __initdata = {
GATE(CLK_MIPS, "mips", "mips_div", 0x104, 0),
GATE(CLK_AUDIO_IN, "audio_in", "audio_clk_in_gate", 0x104, 1),
GATE(CLK_AUDIO, "audio", "audio_div", 0x104, 2),
GATE(CLK_I2S, "i2s", "i2s_div", 0x104, 3),
GATE(CLK_SPDIF, "spdif", "spdif_div", 0x104, 4),
GATE(CLK_AUDIO_DAC, "audio_dac", "audio_dac_div", 0x104, 5),
GATE(CLK_RPU_V, "rpu_v", "rpu_v_div", 0x104, 6),
GATE(CLK_RPU_L, "rpu_l", "rpu_l_div", 0x104, 7),
GATE(CLK_RPU_SLEEP, "rpu_sleep", "rpu_sleep_div", 0x104, 8),
GATE(CLK_WIFI_PLL_GATE, "wifi_pll_gate", "wifi_pll_mux", 0x104, 9),
GATE(CLK_RPU_CORE, "rpu_core", "rpu_core_div", 0x104, 10),
GATE(CLK_WIFI_ADC, "wifi_adc", "wifi_div8_mux", 0x104, 11),
GATE(CLK_WIFI_DAC, "wifi_dac", "wifi_div4_mux", 0x104, 12),
GATE(CLK_USB_PHY, "usb_phy", "usb_phy_div", 0x104, 13),
GATE(CLK_ENET_IN, "enet_in", "enet_clk_in_gate", 0x104, 14),
GATE(CLK_ENET, "enet", "enet_div", 0x104, 15),
GATE(CLK_UART0, "uart0", "uart0_div", 0x104, 16),
GATE(CLK_UART1, "uart1", "uart1_div", 0x104, 17),
GATE(CLK_PERIPH_SYS, "periph_sys", "sys_internal_div", 0x104, 18),
GATE(CLK_SPI0, "spi0", "spi0_div", 0x104, 19),
GATE(CLK_SPI1, "spi1", "spi1_div", 0x104, 20),
GATE(CLK_EVENT_TIMER, "event_timer", "event_timer_div", 0x104, 21),
GATE(CLK_AUX_ADC_INTERNAL, "aux_adc_internal", "sys_internal_div",
0x104, 22),
GATE(CLK_AUX_ADC, "aux_adc", "aux_adc_div", 0x104, 23),
GATE(CLK_SD_HOST, "sd_host", "sd_host_div", 0x104, 24),
GATE(CLK_BT, "bt", "bt_div", 0x104, 25),
GATE(CLK_BT_DIV4, "bt_div4", "bt_div4_div", 0x104, 26),
GATE(CLK_BT_DIV8, "bt_div8", "bt_div8_div", 0x104, 27),
GATE(CLK_BT_1MHZ, "bt_1mhz", "bt_1mhz_div", 0x104, 28),
};
static struct pistachio_fixed_factor pistachio_ffs[] __initdata = {
FIXED_FACTOR(CLK_WIFI_DIV4, "wifi_div4", "wifi_pll", 4),
FIXED_FACTOR(CLK_WIFI_DIV8, "wifi_div8", "wifi_pll", 8),
};
static struct pistachio_div pistachio_divs[] __initdata = {
DIV(CLK_MIPS_INTERNAL_DIV, "mips_internal_div", "mips_pll_mux",
0x204, 2),
DIV(CLK_MIPS_DIV, "mips_div", "mips_internal_div", 0x208, 8),
DIV_F(CLK_AUDIO_DIV, "audio_div", "audio_mux",
0x20c, 8, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_I2S_DIV, "i2s_div", "audio_pll_mux",
0x210, 8, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_SPDIF_DIV, "spdif_div", "audio_pll_mux",
0x214, 8, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_AUDIO_DAC_DIV, "audio_dac_div", "audio_pll_mux",
0x218, 8, CLK_DIVIDER_ROUND_CLOSEST),
DIV(CLK_RPU_V_DIV, "rpu_v_div", "rpu_v_pll_mux", 0x21c, 2),
DIV(CLK_RPU_L_DIV, "rpu_l_div", "rpu_l_mux", 0x220, 2),
DIV(CLK_RPU_SLEEP_DIV, "rpu_sleep_div", "xtal", 0x224, 10),
DIV(CLK_RPU_CORE_DIV, "rpu_core_div", "rpu_core_mux", 0x228, 3),
DIV(CLK_USB_PHY_DIV, "usb_phy_div", "sys_internal_div", 0x22c, 6),
DIV(CLK_ENET_DIV, "enet_div", "enet_mux", 0x230, 6),
DIV_F(CLK_UART0_INTERNAL_DIV, "uart0_internal_div", "sys_pll_mux",
0x234, 3, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_UART0_DIV, "uart0_div", "uart0_internal_div", 0x238, 10,
CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_UART1_INTERNAL_DIV, "uart1_internal_div", "sys_pll_mux",
0x23c, 3, CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(CLK_UART1_DIV, "uart1_div", "uart1_internal_div", 0x240, 10,
CLK_DIVIDER_ROUND_CLOSEST),
DIV(CLK_SYS_INTERNAL_DIV, "sys_internal_div", "sys_pll_mux", 0x244, 3),
DIV(CLK_SPI0_INTERNAL_DIV, "spi0_internal_div", "sys_pll_mux",
0x248, 3),
DIV(CLK_SPI0_DIV, "spi0_div", "spi0_internal_div", 0x24c, 7),
DIV(CLK_SPI1_INTERNAL_DIV, "spi1_internal_div", "sys_pll_mux",
0x250, 3),
DIV(CLK_SPI1_DIV, "spi1_div", "spi1_internal_div", 0x254, 7),
DIV(CLK_EVENT_TIMER_INTERNAL_DIV, "event_timer_internal_div",
"event_timer_mux", 0x258, 3),
DIV(CLK_EVENT_TIMER_DIV, "event_timer_div", "event_timer_internal_div",
0x25c, 12),
DIV(CLK_AUX_ADC_INTERNAL_DIV, "aux_adc_internal_div",
"aux_adc_internal", 0x260, 3),
DIV(CLK_AUX_ADC_DIV, "aux_adc_div", "aux_adc_internal_div", 0x264, 10),
DIV(CLK_SD_HOST_DIV, "sd_host_div", "sd_host_mux", 0x268, 6),
DIV(CLK_BT_DIV, "bt_div", "bt_pll_mux", 0x26c, 6),
DIV(CLK_BT_DIV4_DIV, "bt_div4_div", "bt_pll_mux", 0x270, 6),
DIV(CLK_BT_DIV8_DIV, "bt_div8_div", "bt_pll_mux", 0x274, 6),
DIV(CLK_BT_1MHZ_INTERNAL_DIV, "bt_1mhz_internal_div", "bt_pll_mux",
0x278, 3),
DIV(CLK_BT_1MHZ_DIV, "bt_1mhz_div", "bt_1mhz_internal_div", 0x27c, 10),
};
PNAME(mux_xtal_audio_refclk) = { "xtal", "audio_clk_in_gate" };
PNAME(mux_xtal_mips) = { "xtal", "mips_pll" };
PNAME(mux_xtal_audio) = { "xtal", "audio_pll", "audio_in" };
PNAME(mux_audio_debug) = { "audio_pll_mux", "debug_mux" };
PNAME(mux_xtal_rpu_v) = { "xtal", "rpu_v_pll" };
PNAME(mux_xtal_rpu_l) = { "xtal", "rpu_l_pll" };
PNAME(mux_rpu_l_mips) = { "rpu_l_pll_mux", "mips_pll_mux" };
PNAME(mux_xtal_wifi) = { "xtal", "wifi_pll" };
PNAME(mux_xtal_wifi_div4) = { "xtal", "wifi_div4" };
PNAME(mux_xtal_wifi_div8) = { "xtal", "wifi_div8" };
PNAME(mux_wifi_div4_rpu_l) = { "wifi_pll_gate", "wifi_div4_mux",
"rpu_l_pll_mux" };
PNAME(mux_xtal_sys) = { "xtal", "sys_pll" };
PNAME(mux_sys_enet) = { "sys_internal_div", "enet_in" };
PNAME(mux_audio_sys) = { "audio_pll_mux", "sys_internal_div" };
PNAME(mux_sys_bt) = { "sys_internal_div", "bt_pll_mux" };
PNAME(mux_xtal_bt) = { "xtal", "bt_pll" };
static struct pistachio_mux pistachio_muxes[] __initdata = {
MUX(CLK_AUDIO_REF_MUX, "audio_refclk_mux", mux_xtal_audio_refclk,
0x200, 0),
MUX(CLK_MIPS_PLL_MUX, "mips_pll_mux", mux_xtal_mips, 0x200, 1),
MUX(CLK_AUDIO_PLL_MUX, "audio_pll_mux", mux_xtal_audio, 0x200, 2),
MUX(CLK_AUDIO_MUX, "audio_mux", mux_audio_debug, 0x200, 4),
MUX(CLK_RPU_V_PLL_MUX, "rpu_v_pll_mux", mux_xtal_rpu_v, 0x200, 5),
MUX(CLK_RPU_L_PLL_MUX, "rpu_l_pll_mux", mux_xtal_rpu_l, 0x200, 6),
MUX(CLK_RPU_L_MUX, "rpu_l_mux", mux_rpu_l_mips, 0x200, 7),
MUX(CLK_WIFI_PLL_MUX, "wifi_pll_mux", mux_xtal_wifi, 0x200, 8),
MUX(CLK_WIFI_DIV4_MUX, "wifi_div4_mux", mux_xtal_wifi_div4, 0x200, 9),
MUX(CLK_WIFI_DIV8_MUX, "wifi_div8_mux", mux_xtal_wifi_div8, 0x200, 10),
MUX(CLK_RPU_CORE_MUX, "rpu_core_mux", mux_wifi_div4_rpu_l, 0x200, 11),
MUX(CLK_SYS_PLL_MUX, "sys_pll_mux", mux_xtal_sys, 0x200, 13),
MUX(CLK_ENET_MUX, "enet_mux", mux_sys_enet, 0x200, 14),
MUX(CLK_EVENT_TIMER_MUX, "event_timer_mux", mux_audio_sys, 0x200, 15),
MUX(CLK_SD_HOST_MUX, "sd_host_mux", mux_sys_bt, 0x200, 16),
MUX(CLK_BT_PLL_MUX, "bt_pll_mux", mux_xtal_bt, 0x200, 17),
};
static struct pistachio_pll pistachio_plls[] __initdata = {
PLL_FIXED(CLK_MIPS_PLL, "mips_pll", "xtal", PLL_GF40LP_LAINT, 0x0),
PLL_FIXED(CLK_AUDIO_PLL, "audio_pll", "audio_refclk_mux",
PLL_GF40LP_FRAC, 0xc),
PLL_FIXED(CLK_RPU_V_PLL, "rpu_v_pll", "xtal", PLL_GF40LP_LAINT, 0x20),
PLL_FIXED(CLK_RPU_L_PLL, "rpu_l_pll", "xtal", PLL_GF40LP_LAINT, 0x2c),
PLL_FIXED(CLK_SYS_PLL, "sys_pll", "xtal", PLL_GF40LP_FRAC, 0x38),
PLL_FIXED(CLK_WIFI_PLL, "wifi_pll", "xtal", PLL_GF40LP_FRAC, 0x4c),
PLL_FIXED(CLK_BT_PLL, "bt_pll", "xtal", PLL_GF40LP_LAINT, 0x60),
};
PNAME(mux_debug) = { "mips_pll_mux", "rpu_v_pll_mux",
"rpu_l_pll_mux", "sys_pll_mux",
"wifi_pll_mux", "bt_pll_mux" };
static u32 mux_debug_idx[] = { 0x0, 0x1, 0x2, 0x4, 0x8, 0x10 };
clk: pistachio: correct critical clock list Current critical clock list for pistachio enables only mips and sys clocks by default but there are also other clocks that are not claimed by anyone and needs to be enabled by default. This patch updates the critical clocks that need to be enabled by default. Add a separate struct to distinguish the critical clocks as listed: 1.) core clocks: a.) mips clock 2.) peripheral system clocks: a.) sys clock b.) sys_bus clock c.) DDR clock d.) ROM clock Fixes: b35d7c33419c("CLK: Pistachio: Register core clocks") Cc: <stable@vger.kernel.org> # 4.1 Reviewed-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Signed-off-by: Damien.Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Govindraj Raja <govindraj.raja@imgtec.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-27 00:11:40 +08:00
static unsigned int pistachio_critical_clks_core[] __initdata = {
CLK_MIPS
};
static unsigned int pistachio_critical_clks_sys[] __initdata = {
PERIPH_CLK_SYS,
PERIPH_CLK_SYS_BUS,
PERIPH_CLK_DDR,
PERIPH_CLK_ROM,
CLK: Pistachio: Register core clocks Register the clocks generated by the core clock controller. This includes the 7 PLLs and clocks for the CPU, RPU co-processor, audio, WiFi, bluetooth, and several other peripherals. The MIPS and PERIPH_SYS clocks must remain enabled at all times. Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Patchwork: https://patchwork.linux-mips.org/patch/9317/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-25 11:56:04 +08:00
};
static void __init pistachio_clk_init(struct device_node *np)
{
struct pistachio_clk_provider *p;
struct clk *debug_clk;
p = pistachio_clk_alloc_provider(np, CLK_NR_CLKS);
if (!p)
return;
pistachio_clk_register_pll(p, pistachio_plls,
ARRAY_SIZE(pistachio_plls));
pistachio_clk_register_mux(p, pistachio_muxes,
ARRAY_SIZE(pistachio_muxes));
pistachio_clk_register_div(p, pistachio_divs,
ARRAY_SIZE(pistachio_divs));
pistachio_clk_register_fixed_factor(p, pistachio_ffs,
ARRAY_SIZE(pistachio_ffs));
pistachio_clk_register_gate(p, pistachio_gates,
ARRAY_SIZE(pistachio_gates));
debug_clk = clk_register_mux_table(NULL, "debug_mux", mux_debug,
ARRAY_SIZE(mux_debug),
CLK_SET_RATE_NO_REPARENT,
p->base + 0x200, 18, 0x1f, 0,
mux_debug_idx, NULL);
p->clk_data.clks[CLK_DEBUG_MUX] = debug_clk;
pistachio_clk_register_provider(p);
clk: pistachio: correct critical clock list Current critical clock list for pistachio enables only mips and sys clocks by default but there are also other clocks that are not claimed by anyone and needs to be enabled by default. This patch updates the critical clocks that need to be enabled by default. Add a separate struct to distinguish the critical clocks as listed: 1.) core clocks: a.) mips clock 2.) peripheral system clocks: a.) sys clock b.) sys_bus clock c.) DDR clock d.) ROM clock Fixes: b35d7c33419c("CLK: Pistachio: Register core clocks") Cc: <stable@vger.kernel.org> # 4.1 Reviewed-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Signed-off-by: Damien.Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Govindraj Raja <govindraj.raja@imgtec.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-27 00:11:40 +08:00
pistachio_clk_force_enable(p, pistachio_critical_clks_core,
ARRAY_SIZE(pistachio_critical_clks_core));
CLK: Pistachio: Register core clocks Register the clocks generated by the core clock controller. This includes the 7 PLLs and clocks for the CPU, RPU co-processor, audio, WiFi, bluetooth, and several other peripherals. The MIPS and PERIPH_SYS clocks must remain enabled at all times. Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Patchwork: https://patchwork.linux-mips.org/patch/9317/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-25 11:56:04 +08:00
}
CLK_OF_DECLARE(pistachio_clk, "img,pistachio-clk", pistachio_clk_init);
CLK: Pistachio: Register peripheral clocks Register the clocks generated by the peripheral clock controller. This includes the clocks for several peripherals, including I2C, PWM, watchdog, and timer. Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Patchwork: https://patchwork.linux-mips.org/patch/9320/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-25 11:56:05 +08:00
static struct pistachio_gate pistachio_periph_gates[] __initdata = {
GATE(PERIPH_CLK_SYS, "sys", "periph_sys", 0x100, 0),
GATE(PERIPH_CLK_SYS_BUS, "bus_sys", "periph_sys", 0x100, 1),
GATE(PERIPH_CLK_DDR, "ddr", "periph_sys", 0x100, 2),
GATE(PERIPH_CLK_ROM, "rom", "rom_div", 0x100, 3),
GATE(PERIPH_CLK_COUNTER_FAST, "counter_fast", "counter_fast_div",
0x100, 4),
GATE(PERIPH_CLK_COUNTER_SLOW, "counter_slow", "counter_slow_div",
0x100, 5),
GATE(PERIPH_CLK_IR, "ir", "ir_div", 0x100, 6),
GATE(PERIPH_CLK_WD, "wd", "wd_div", 0x100, 7),
GATE(PERIPH_CLK_PDM, "pdm", "pdm_div", 0x100, 8),
GATE(PERIPH_CLK_PWM, "pwm", "pwm_div", 0x100, 9),
GATE(PERIPH_CLK_I2C0, "i2c0", "i2c0_div", 0x100, 10),
GATE(PERIPH_CLK_I2C1, "i2c1", "i2c1_div", 0x100, 11),
GATE(PERIPH_CLK_I2C2, "i2c2", "i2c2_div", 0x100, 12),
GATE(PERIPH_CLK_I2C3, "i2c3", "i2c3_div", 0x100, 13),
};
static struct pistachio_div pistachio_periph_divs[] __initdata = {
DIV(PERIPH_CLK_ROM_DIV, "rom_div", "periph_sys", 0x10c, 7),
DIV(PERIPH_CLK_COUNTER_FAST_DIV, "counter_fast_div", "periph_sys",
0x110, 7),
DIV(PERIPH_CLK_COUNTER_SLOW_PRE_DIV, "counter_slow_pre_div",
"periph_sys", 0x114, 7),
DIV(PERIPH_CLK_COUNTER_SLOW_DIV, "counter_slow_div",
"counter_slow_pre_div", 0x118, 7),
DIV_F(PERIPH_CLK_IR_PRE_DIV, "ir_pre_div", "periph_sys", 0x11c, 7,
CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(PERIPH_CLK_IR_DIV, "ir_div", "ir_pre_div", 0x120, 7,
CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(PERIPH_CLK_WD_PRE_DIV, "wd_pre_div", "periph_sys", 0x124, 7,
CLK_DIVIDER_ROUND_CLOSEST),
DIV_F(PERIPH_CLK_WD_DIV, "wd_div", "wd_pre_div", 0x128, 7,
CLK_DIVIDER_ROUND_CLOSEST),
DIV(PERIPH_CLK_PDM_PRE_DIV, "pdm_pre_div", "periph_sys", 0x12c, 7),
DIV(PERIPH_CLK_PDM_DIV, "pdm_div", "pdm_pre_div", 0x130, 7),
DIV(PERIPH_CLK_PWM_PRE_DIV, "pwm_pre_div", "periph_sys", 0x134, 7),
DIV(PERIPH_CLK_PWM_DIV, "pwm_div", "pwm_pre_div", 0x138, 7),
DIV(PERIPH_CLK_I2C0_PRE_DIV, "i2c0_pre_div", "periph_sys", 0x13c, 7),
DIV(PERIPH_CLK_I2C0_DIV, "i2c0_div", "i2c0_pre_div", 0x140, 7),
DIV(PERIPH_CLK_I2C1_PRE_DIV, "i2c1_pre_div", "periph_sys", 0x144, 7),
DIV(PERIPH_CLK_I2C1_DIV, "i2c1_div", "i2c1_pre_div", 0x148, 7),
DIV(PERIPH_CLK_I2C2_PRE_DIV, "i2c2_pre_div", "periph_sys", 0x14c, 7),
DIV(PERIPH_CLK_I2C2_DIV, "i2c2_div", "i2c2_pre_div", 0x150, 7),
DIV(PERIPH_CLK_I2C3_PRE_DIV, "i2c3_pre_div", "periph_sys", 0x154, 7),
DIV(PERIPH_CLK_I2C3_DIV, "i2c3_div", "i2c3_pre_div", 0x158, 7),
};
static void __init pistachio_clk_periph_init(struct device_node *np)
{
struct pistachio_clk_provider *p;
p = pistachio_clk_alloc_provider(np, PERIPH_CLK_NR_CLKS);
if (!p)
return;
pistachio_clk_register_div(p, pistachio_periph_divs,
ARRAY_SIZE(pistachio_periph_divs));
pistachio_clk_register_gate(p, pistachio_periph_gates,
ARRAY_SIZE(pistachio_periph_gates));
pistachio_clk_register_provider(p);
clk: pistachio: correct critical clock list Current critical clock list for pistachio enables only mips and sys clocks by default but there are also other clocks that are not claimed by anyone and needs to be enabled by default. This patch updates the critical clocks that need to be enabled by default. Add a separate struct to distinguish the critical clocks as listed: 1.) core clocks: a.) mips clock 2.) peripheral system clocks: a.) sys clock b.) sys_bus clock c.) DDR clock d.) ROM clock Fixes: b35d7c33419c("CLK: Pistachio: Register core clocks") Cc: <stable@vger.kernel.org> # 4.1 Reviewed-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Signed-off-by: Damien.Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Govindraj Raja <govindraj.raja@imgtec.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-27 00:11:40 +08:00
pistachio_clk_force_enable(p, pistachio_critical_clks_sys,
ARRAY_SIZE(pistachio_critical_clks_sys));
CLK: Pistachio: Register peripheral clocks Register the clocks generated by the peripheral clock controller. This includes the clocks for several peripherals, including I2C, PWM, watchdog, and timer. Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Patchwork: https://patchwork.linux-mips.org/patch/9320/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-25 11:56:05 +08:00
}
CLK_OF_DECLARE(pistachio_clk_periph, "img,pistachio-clk-periph",
pistachio_clk_periph_init);
CLK: Pistachio: Register system interface gate clocks Register the system interface gate clocks provided by the peripheral general control block. These clocks gate register access for various peripherals. Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Patchwork: https://patchwork.linux-mips.org/patch/9322/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-25 11:56:06 +08:00
static struct pistachio_gate pistachio_sys_gates[] __initdata = {
GATE(SYS_CLK_I2C0, "i2c0_sys", "sys", 0x8, 0),
GATE(SYS_CLK_I2C1, "i2c1_sys", "sys", 0x8, 1),
GATE(SYS_CLK_I2C2, "i2c2_sys", "sys", 0x8, 2),
GATE(SYS_CLK_I2C3, "i2c3_sys", "sys", 0x8, 3),
GATE(SYS_CLK_I2S_IN, "i2s_in_sys", "sys", 0x8, 4),
GATE(SYS_CLK_PAUD_OUT, "paud_out_sys", "sys", 0x8, 5),
GATE(SYS_CLK_SPDIF_OUT, "spdif_out_sys", "sys", 0x8, 6),
GATE(SYS_CLK_SPI0_MASTER, "spi0_master_sys", "sys", 0x8, 7),
GATE(SYS_CLK_SPI0_SLAVE, "spi0_slave_sys", "sys", 0x8, 8),
GATE(SYS_CLK_PWM, "pwm_sys", "sys", 0x8, 9),
GATE(SYS_CLK_UART0, "uart0_sys", "sys", 0x8, 10),
GATE(SYS_CLK_UART1, "uart1_sys", "sys", 0x8, 11),
GATE(SYS_CLK_SPI1, "spi1_sys", "sys", 0x8, 12),
GATE(SYS_CLK_MDC, "mdc_sys", "sys", 0x8, 13),
GATE(SYS_CLK_SD_HOST, "sd_host_sys", "sys", 0x8, 14),
GATE(SYS_CLK_ENET, "enet_sys", "sys", 0x8, 15),
GATE(SYS_CLK_IR, "ir_sys", "sys", 0x8, 16),
GATE(SYS_CLK_WD, "wd_sys", "sys", 0x8, 17),
GATE(SYS_CLK_TIMER, "timer_sys", "sys", 0x8, 18),
GATE(SYS_CLK_I2S_OUT, "i2s_out_sys", "sys", 0x8, 24),
GATE(SYS_CLK_SPDIF_IN, "spdif_in_sys", "sys", 0x8, 25),
GATE(SYS_CLK_EVENT_TIMER, "event_timer_sys", "sys", 0x8, 26),
GATE(SYS_CLK_HASH, "hash_sys", "sys", 0x8, 27),
};
static void __init pistachio_cr_periph_init(struct device_node *np)
{
struct pistachio_clk_provider *p;
p = pistachio_clk_alloc_provider(np, SYS_CLK_NR_CLKS);
if (!p)
return;
pistachio_clk_register_gate(p, pistachio_sys_gates,
ARRAY_SIZE(pistachio_sys_gates));
pistachio_clk_register_provider(p);
}
CLK_OF_DECLARE(pistachio_cr_periph, "img,pistachio-cr-periph",
pistachio_cr_periph_init);
CLK: Pistachio: Register external clock gates Register the clock gates for the external audio and ethernet reference clocks provided by the top-level general control block. Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Patchwork: https://patchwork.linux-mips.org/patch/9321/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-25 11:56:07 +08:00
static struct pistachio_gate pistachio_ext_gates[] __initdata = {
GATE(EXT_CLK_ENET_IN, "enet_clk_in_gate", "enet_clk_in", 0x58, 5),
GATE(EXT_CLK_AUDIO_IN, "audio_clk_in_gate", "audio_clk_in", 0x58, 8)
};
static void __init pistachio_cr_top_init(struct device_node *np)
{
struct pistachio_clk_provider *p;
p = pistachio_clk_alloc_provider(np, EXT_CLK_NR_CLKS);
if (!p)
return;
pistachio_clk_register_gate(p, pistachio_ext_gates,
ARRAY_SIZE(pistachio_ext_gates));
pistachio_clk_register_provider(p);
}
CLK_OF_DECLARE(pistachio_cr_top, "img,pistachio-cr-top",
pistachio_cr_top_init);