iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/drivers/clk/ti/clk-43xx.c

312 lines
12 KiB
C
Raw Normal View History

CLK: TI: add am43xx clock init file clk-43xx.c now contains the clock init functionality for am43xx, including DT clock registration and adding of static clkdev entries. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-09-20 17:02:40 +03:00
/*
* AM43XX Clock init
*
* Copyright (C) 2013 Texas Instruments, Inc
* Tero Kristo (t-kristo@ti.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/list.h>
clk: ti: Include clk.h This clock provider uses the consumer API, so include clk.h explicitly. Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-19 15:00:46 -07:00
#include <linux/clk.h>
CLK: TI: add am43xx clock init file clk-43xx.c now contains the clock init functionality for am43xx, including DT clock registration and adding of static clkdev entries. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-09-20 17:02:40 +03:00
#include <linux/clk-provider.h>
#include <linux/clk/ti.h>
clk: ti: am43xx: add clkctrl clock data Add data for am43xx clkctrl clocks, and register it within the clkctrl driver. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-10 16:11:06 +03:00
#include <dt-bindings/clock/am4.h>
CLK: TI: add am43xx clock init file clk-43xx.c now contains the clock init functionality for am43xx, including DT clock registration and adding of static clkdev entries. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-09-20 17:02:40 +03:00
clk: ti: move some public definitions to private header Several exported TI clock driver features are no longer needed outside the clock driver itself, thus move all of these to the driver private header file. Also, update some of the driver files to actually include this header. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-03-04 21:02:05 +02:00
#include "clock.h"
clk: ti: am43xx: add new clkctrl data for am43xx The new clkctrl data layout for am43xx is split based on clockdomain boundaries. Previously the split was based on CM boundaries. This patch adds the new data as separate data entity, retaining the compatibility data also for now. The compatibility data can be removed once no longer needed. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Tony Lindgren <tony@atomide.com>
2018-08-13 10:48:52 +03:00
static const struct omap_clkctrl_reg_data am4_l3s_tsc_clkctrl_regs[] __initconst = {
{ AM4_L3S_TSC_ADC_TSC_CLKCTRL, NULL, CLKF_SW_SUP, "adc_tsc_fck" },
{ 0 },
};
static const char * const am4_synctimer_32kclk_parents[] __initconst = {
"mux_synctimer32k_ck",
NULL,
};
static const struct omap_clkctrl_bit_data am4_counter_32k_bit_data[] __initconst = {
{ 8, TI_CLK_GATE, am4_synctimer_32kclk_parents, NULL },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_l4_wkup_aon_clkctrl_regs[] __initconst = {
{ AM4_L4_WKUP_AON_WKUP_M3_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sys_clkin_ck" },
{ AM4_L4_WKUP_AON_COUNTER_32K_CLKCTRL, am4_counter_32k_bit_data, CLKF_SW_SUP, "l4-wkup-aon-clkctrl:0008:8" },
{ 0 },
};
static const char * const am4_gpio0_dbclk_parents[] __initconst = {
"gpio0_dbclk_mux_ck",
NULL,
};
static const struct omap_clkctrl_bit_data am4_gpio1_bit_data[] __initconst = {
{ 8, TI_CLK_GATE, am4_gpio0_dbclk_parents, NULL },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_l4_wkup_clkctrl_regs[] __initconst = {
{ AM4_L4_WKUP_L4_WKUP_CLKCTRL, NULL, CLKF_SW_SUP, "sys_clkin_ck" },
{ AM4_L4_WKUP_TIMER1_CLKCTRL, NULL, CLKF_SW_SUP, "timer1_fck" },
{ AM4_L4_WKUP_WD_TIMER2_CLKCTRL, NULL, CLKF_SW_SUP, "wdt1_fck" },
{ AM4_L4_WKUP_I2C1_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_wkupdm_ck" },
{ AM4_L4_WKUP_UART1_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_wkupdm_ck" },
{ AM4_L4_WKUP_SMARTREFLEX0_CLKCTRL, NULL, CLKF_SW_SUP, "smartreflex0_fck" },
{ AM4_L4_WKUP_SMARTREFLEX1_CLKCTRL, NULL, CLKF_SW_SUP, "smartreflex1_fck" },
{ AM4_L4_WKUP_CONTROL_CLKCTRL, NULL, CLKF_SW_SUP, "sys_clkin_ck" },
{ AM4_L4_WKUP_GPIO1_CLKCTRL, am4_gpio1_bit_data, CLKF_SW_SUP, "sys_clkin_ck" },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_mpu_clkctrl_regs[] __initconst = {
{ AM4_MPU_MPU_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_mpu_m2_ck" },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_gfx_l3_clkctrl_regs[] __initconst = {
clk: ti: am43xx: drop idlest polling from gfx clock Due to the way ti sysc and hardreset line control is now implemented, it is not possible to poll the clock status for gfx clock independent of hardreset line control. Thus, add a flag to prevent handling this status bit from clock driver. Correct sequencing of events is guaranteed by ti-sysc bus driver. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-10-07 15:26:04 +03:00
{ AM4_GFX_L3_GFX_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "gfx_fck_div_ck" },
clk: ti: am43xx: add new clkctrl data for am43xx The new clkctrl data layout for am43xx is split based on clockdomain boundaries. Previously the split was based on CM boundaries. This patch adds the new data as separate data entity, retaining the compatibility data also for now. The compatibility data can be removed once no longer needed. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Tony Lindgren <tony@atomide.com>
2018-08-13 10:48:52 +03:00
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_l4_rtc_clkctrl_regs[] __initconst = {
clk: ti: am43xx: Fix clock parent for RTC clock Currently enabling clkctrl clock on am4 can fail for RTC as the clock parent is wrong for RTC. Fixes: 76a1049b84dd ("clk: ti: am43xx: add new clkctrl data for am43xx") Signed-off-by: Tony Lindgren <tony@atomide.com> Link: https://lkml.kernel.org/r/20200221171030.39326-1-tony@atomide.com Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-02-21 09:10:30 -08:00
{ AM4_L4_RTC_RTC_CLKCTRL, NULL, CLKF_SW_SUP, "clkdiv32k_ick" },
clk: ti: am43xx: add new clkctrl data for am43xx The new clkctrl data layout for am43xx is split based on clockdomain boundaries. Previously the split was based on CM boundaries. This patch adds the new data as separate data entity, retaining the compatibility data also for now. The compatibility data can be removed once no longer needed. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Tony Lindgren <tony@atomide.com>
2018-08-13 10:48:52 +03:00
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_l3_clkctrl_regs[] __initconst = {
{ AM4_L3_L3_MAIN_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3_AES_CLKCTRL, NULL, CLKF_SW_SUP, "aes0_fck" },
{ AM4_L3_DES_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3_L3_INSTR_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3_OCMCRAM_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3_SHAM_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3_TPCC_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3_TPTC0_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3_TPTC1_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3_TPTC2_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3_L4_HS_CLKCTRL, NULL, CLKF_SW_SUP, "l4hs_gclk" },
{ 0 },
};
static const char * const am4_usb_otg_ss0_refclk960m_parents[] __initconst = {
"dpll_per_clkdcoldo",
NULL,
};
static const struct omap_clkctrl_bit_data am4_usb_otg_ss0_bit_data[] __initconst = {
{ 8, TI_CLK_GATE, am4_usb_otg_ss0_refclk960m_parents, NULL },
{ 0 },
};
static const struct omap_clkctrl_bit_data am4_usb_otg_ss1_bit_data[] __initconst = {
{ 8, TI_CLK_GATE, am4_usb_otg_ss0_refclk960m_parents, NULL },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_l3s_clkctrl_regs[] __initconst = {
{ AM4_L3S_VPFE0_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3S_VPFE1_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk" },
{ AM4_L3S_GPMC_CLKCTRL, NULL, CLKF_SW_SUP, "l3s_gclk" },
{ AM4_L3S_MCASP0_CLKCTRL, NULL, CLKF_SW_SUP, "mcasp0_fck" },
{ AM4_L3S_MCASP1_CLKCTRL, NULL, CLKF_SW_SUP, "mcasp1_fck" },
{ AM4_L3S_MMC3_CLKCTRL, NULL, CLKF_SW_SUP, "mmc_clk" },
{ AM4_L3S_QSPI_CLKCTRL, NULL, CLKF_SW_SUP, "l3s_gclk" },
{ AM4_L3S_USB_OTG_SS0_CLKCTRL, am4_usb_otg_ss0_bit_data, CLKF_SW_SUP, "l3s_gclk" },
{ AM4_L3S_USB_OTG_SS1_CLKCTRL, am4_usb_otg_ss1_bit_data, CLKF_SW_SUP, "l3s_gclk" },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_pruss_ocp_clkctrl_regs[] __initconst = {
clk: ti: am43xx: drop idlest polling from pruss clkctrl clock The PRUSS modules on AM43xx SoCs have a hardreset line and are controlled by a PRCM reset line. Any clkctrl enable/disable operations cannot be checked for module enabled/disabled status independent of the reset operation, and this causes some unwanted timeouts in the kernel and unbalanced states for the PRUSS clocks. These details should be handled by the driver integration code itself. Add the CLKF_NO_IDLEST flag to the PRUSS clkctrl clock so that these module status checks are skipped. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-09-12 16:26:12 +03:00
{ AM4_PRUSS_OCP_PRUSS_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "pruss_ocp_gclk" },
clk: ti: am43xx: add new clkctrl data for am43xx The new clkctrl data layout for am43xx is split based on clockdomain boundaries. Previously the split was based on CM boundaries. This patch adds the new data as separate data entity, retaining the compatibility data also for now. The compatibility data can be removed once no longer needed. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Tony Lindgren <tony@atomide.com>
2018-08-13 10:48:52 +03:00
{ 0 },
};
static const char * const am4_gpio1_dbclk_parents[] __initconst = {
"clkdiv32k_ick",
NULL,
};
static const struct omap_clkctrl_bit_data am4_gpio2_bit_data[] __initconst = {
{ 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
{ 0 },
};
static const struct omap_clkctrl_bit_data am4_gpio3_bit_data[] __initconst = {
{ 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
{ 0 },
};
static const struct omap_clkctrl_bit_data am4_gpio4_bit_data[] __initconst = {
{ 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
{ 0 },
};
static const struct omap_clkctrl_bit_data am4_gpio5_bit_data[] __initconst = {
{ 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
{ 0 },
};
static const struct omap_clkctrl_bit_data am4_gpio6_bit_data[] __initconst = {
{ 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_l4ls_clkctrl_regs[] __initconst = {
{ AM4_L4LS_L4_LS_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_D_CAN0_CLKCTRL, NULL, CLKF_SW_SUP, "dcan0_fck" },
{ AM4_L4LS_D_CAN1_CLKCTRL, NULL, CLKF_SW_SUP, "dcan1_fck" },
{ AM4_L4LS_EPWMSS0_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_EPWMSS1_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_EPWMSS2_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_EPWMSS3_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_EPWMSS4_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_EPWMSS5_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_ELM_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_GPIO2_CLKCTRL, am4_gpio2_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_GPIO3_CLKCTRL, am4_gpio3_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_GPIO4_CLKCTRL, am4_gpio4_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_GPIO5_CLKCTRL, am4_gpio5_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_GPIO6_CLKCTRL, am4_gpio6_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_HDQ1W_CLKCTRL, NULL, CLKF_SW_SUP, "func_12m_clk" },
{ AM4_L4LS_I2C2_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_I2C3_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_MAILBOX_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_MMC1_CLKCTRL, NULL, CLKF_SW_SUP, "mmc_clk" },
{ AM4_L4LS_MMC2_CLKCTRL, NULL, CLKF_SW_SUP, "mmc_clk" },
{ AM4_L4LS_RNG_CLKCTRL, NULL, CLKF_SW_SUP, "rng_fck" },
{ AM4_L4LS_SPI0_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_SPI1_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_SPI2_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_SPI3_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_SPI4_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_SPINLOCK_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_TIMER2_CLKCTRL, NULL, CLKF_SW_SUP, "timer2_fck" },
{ AM4_L4LS_TIMER3_CLKCTRL, NULL, CLKF_SW_SUP, "timer3_fck" },
{ AM4_L4LS_TIMER4_CLKCTRL, NULL, CLKF_SW_SUP, "timer4_fck" },
{ AM4_L4LS_TIMER5_CLKCTRL, NULL, CLKF_SW_SUP, "timer5_fck" },
{ AM4_L4LS_TIMER6_CLKCTRL, NULL, CLKF_SW_SUP, "timer6_fck" },
{ AM4_L4LS_TIMER7_CLKCTRL, NULL, CLKF_SW_SUP, "timer7_fck" },
{ AM4_L4LS_TIMER8_CLKCTRL, NULL, CLKF_SW_SUP, "timer8_fck" },
{ AM4_L4LS_TIMER9_CLKCTRL, NULL, CLKF_SW_SUP, "timer9_fck" },
{ AM4_L4LS_TIMER10_CLKCTRL, NULL, CLKF_SW_SUP, "timer10_fck" },
{ AM4_L4LS_TIMER11_CLKCTRL, NULL, CLKF_SW_SUP, "timer11_fck" },
{ AM4_L4LS_UART2_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_UART3_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_UART4_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_UART5_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_UART6_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
{ AM4_L4LS_OCP2SCP0_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ AM4_L4LS_OCP2SCP1_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_emif_clkctrl_regs[] __initconst = {
{ AM4_EMIF_EMIF_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_ddr_m2_ck" },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_dss_clkctrl_regs[] __initconst = {
{ AM4_DSS_DSS_CORE_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_SET_RATE_PARENT, "disp_clk" },
{ 0 },
};
static const struct omap_clkctrl_reg_data am4_cpsw_125mhz_clkctrl_regs[] __initconst = {
{ AM4_CPSW_125MHZ_CPGMAC0_CLKCTRL, NULL, CLKF_SW_SUP, "cpsw_125mhz_gclk" },
{ 0 },
};
const struct omap_clkctrl_data am4_clkctrl_data[] __initconst = {
{ 0x44df2920, am4_l3s_tsc_clkctrl_regs },
{ 0x44df2a28, am4_l4_wkup_aon_clkctrl_regs },
{ 0x44df2a20, am4_l4_wkup_clkctrl_regs },
{ 0x44df8320, am4_mpu_clkctrl_regs },
{ 0x44df8420, am4_gfx_l3_clkctrl_regs },
{ 0x44df8520, am4_l4_rtc_clkctrl_regs },
{ 0x44df8820, am4_l3_clkctrl_regs },
{ 0x44df8868, am4_l3s_clkctrl_regs },
{ 0x44df8b20, am4_pruss_ocp_clkctrl_regs },
{ 0x44df8c20, am4_l4ls_clkctrl_regs },
{ 0x44df8f20, am4_emif_clkctrl_regs },
{ 0x44df9220, am4_dss_clkctrl_regs },
{ 0x44df9320, am4_cpsw_125mhz_clkctrl_regs },
{ 0 },
};
const struct omap_clkctrl_data am438x_clkctrl_data[] __initconst = {
{ 0x44df2920, am4_l3s_tsc_clkctrl_regs },
{ 0x44df2a28, am4_l4_wkup_aon_clkctrl_regs },
{ 0x44df2a20, am4_l4_wkup_clkctrl_regs },
{ 0x44df8320, am4_mpu_clkctrl_regs },
{ 0x44df8420, am4_gfx_l3_clkctrl_regs },
{ 0x44df8820, am4_l3_clkctrl_regs },
{ 0x44df8868, am4_l3s_clkctrl_regs },
{ 0x44df8b20, am4_pruss_ocp_clkctrl_regs },
{ 0x44df8c20, am4_l4ls_clkctrl_regs },
{ 0x44df8f20, am4_emif_clkctrl_regs },
{ 0x44df9220, am4_dss_clkctrl_regs },
{ 0x44df9320, am4_cpsw_125mhz_clkctrl_regs },
{ 0 },
};
static struct ti_dt_clk am43xx_clks[] = {
DT_CLK(NULL, "timer_32k_ck", "clkdiv32k_ick"),
DT_CLK(NULL, "timer_sys_ck", "sys_clkin_ck"),
DT_CLK(NULL, "gpio0_dbclk", "l4-wkup-clkctrl:0148:8"),
DT_CLK(NULL, "gpio1_dbclk", "l4ls-clkctrl:0058:8"),
DT_CLK(NULL, "gpio2_dbclk", "l4ls-clkctrl:0060:8"),
DT_CLK(NULL, "gpio3_dbclk", "l4ls-clkctrl:0068:8"),
DT_CLK(NULL, "gpio4_dbclk", "l4ls-clkctrl:0070:8"),
DT_CLK(NULL, "gpio5_dbclk", "l4ls-clkctrl:0078:8"),
DT_CLK(NULL, "synctimer_32kclk", "l4-wkup-aon-clkctrl:0008:8"),
DT_CLK(NULL, "usb_otg_ss0_refclk960m", "l3s-clkctrl:01f8:8"),
DT_CLK(NULL, "usb_otg_ss1_refclk960m", "l3s-clkctrl:0200:8"),
{ .node_name = NULL },
};
clk: ti: am437x: Keep am4 l3 main clock always on for genpd In order for suspend and resume to work with genpd on am4, we must keep l3 main clock always on. Otherwise prm_omap driver will shut down the l3 main clock on suspend when simple-pm-bus and GENPD_FLAG_PM_CLK are used. Note that we already keep the l3 main clock always on with the legacy platform code. Later on we may want to start managing the l3 main clock with a dedicated interconnect driver instead of using simple-pm-bus and GENPD_FLAG_PM_CLK. Cc: linux-clk@vger.kernel.org Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-16 12:57:13 +02:00
static const char *enable_init_clks[] = {
/* AM4_L3_L3_MAIN_CLKCTRL, needed during suspend */
"l3-clkctrl:0000:0",
};
CLK: TI: add am43xx clock init file clk-43xx.c now contains the clock init functionality for am43xx, including DT clock registration and adding of static clkdev entries. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-09-20 17:02:40 +03:00
int __init am43xx_dt_clk_init(void)
{
ARM: AM43xx: clk: Change the cpts ref clock source to dpll_core_m5 clk cpsw_cpts_rft_clk has got the choice of 3 clocksources -dpll_core_m4_ck -dpll_core_m5_ck -dpll_disp_m2_ck By default dpll_core_m4_ck is selected, witn this as clock source the CPTS doesnot work properly. It gives clockcheck errors while running PTP. clockcheck: clock jumped backward or running slower than expected! By selecting dpll_core_m5_ck as the clocksource fixes this issue. In AM335x dpll_core_m5_ck is the default clocksource. Signed-off-by: George Cherian <george.cherian@ti.com> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 12:02:03 +05:30
struct clk *clk1, *clk2;
clk: ti: am43xx: add new clkctrl data for am43xx The new clkctrl data layout for am43xx is split based on clockdomain boundaries. Previously the split was based on CM boundaries. This patch adds the new data as separate data entity, retaining the compatibility data also for now. The compatibility data can be removed once no longer needed. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Tony Lindgren <tony@atomide.com>
2018-08-13 10:48:52 +03:00
if (ti_clk_get_features()->flags & TI_CLK_CLKCTRL_COMPAT)
ti_dt_clocks_register(am43xx_compat_clks);
else
ti_dt_clocks_register(am43xx_clks);
CLK: TI: add am43xx clock init file clk-43xx.c now contains the clock init functionality for am43xx, including DT clock registration and adding of static clkdev entries. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-09-20 17:02:40 +03:00
omap2_clk_disable_autoidle_all();
clk: ti: am437x: Keep am4 l3 main clock always on for genpd In order for suspend and resume to work with genpd on am4, we must keep l3 main clock always on. Otherwise prm_omap driver will shut down the l3 main clock on suspend when simple-pm-bus and GENPD_FLAG_PM_CLK are used. Note that we already keep the l3 main clock always on with the legacy platform code. Later on we may want to start managing the l3 main clock with a dedicated interconnect driver instead of using simple-pm-bus and GENPD_FLAG_PM_CLK. Cc: linux-clk@vger.kernel.org Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-11-16 12:57:13 +02:00
omap2_clk_enable_init_clocks(enable_init_clks,
ARRAY_SIZE(enable_init_clks));
clk: ti: am43xx: cleanup unnecessary clock aliases Most of the clock aliases are no longer needed, only leave the ones required by OMAP timer code in place. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2017-08-24 15:32:21 +03:00
ti_clk_add_aliases();
ARM: AM43xx: clk: Change the cpts ref clock source to dpll_core_m5 clk cpsw_cpts_rft_clk has got the choice of 3 clocksources -dpll_core_m4_ck -dpll_core_m5_ck -dpll_disp_m2_ck By default dpll_core_m4_ck is selected, witn this as clock source the CPTS doesnot work properly. It gives clockcheck errors while running PTP. clockcheck: clock jumped backward or running slower than expected! By selecting dpll_core_m5_ck as the clocksource fixes this issue. In AM335x dpll_core_m5_ck is the default clocksource. Signed-off-by: George Cherian <george.cherian@ti.com> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 12:02:03 +05:30
/*
* cpsw_cpts_rft_clk has got the choice of 3 clocksources
* dpll_core_m4_ck, dpll_core_m5_ck and dpll_disp_m2_ck.
* By default dpll_core_m4_ck is selected, witn this as clock
* source the CPTS doesnot work properly. It gives clockcheck errors
* while running PTP.
* clockcheck: clock jumped backward or running slower than expected!
* By selecting dpll_core_m5_ck as the clocksource fixes this issue.
* In AM335x dpll_core_m5_ck is the default clocksource.
*/
clk1 = clk_get_sys(NULL, "cpsw_cpts_rft_clk");
clk2 = clk_get_sys(NULL, "dpll_core_m5_ck");
clk_set_parent(clk1, clk2);
CLK: TI: add am43xx clock init file clk-43xx.c now contains the clock init functionality for am43xx, including DT clock registration and adding of static clkdev entries. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-09-20 17:02:40 +03:00
return 0;
}
Reference in New Issue Copy Permalink