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16aed29d7c
We need sysclk6_ck enabled early as it is needed by l4_ls and system timers early on boot. This removes the dependency of system timers to the interconnect related code that can be then probed later on when suitable at module_init time. Cc: linux-clk@vger.kernel.org Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Rob Herring <robh@kernel.org> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Tero Kristo <t-kristo@ti.com> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
89 lines
3.4 KiB
C
89 lines
3.4 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/clk-provider.h>
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#include <linux/clk/ti.h>
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#include <dt-bindings/clock/dm816.h>
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#include "clock.h"
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static const struct omap_clkctrl_reg_data dm816_default_clkctrl_regs[] __initconst = {
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{ DM816_USB_OTG_HS_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
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{ 0 },
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};
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static const struct omap_clkctrl_reg_data dm816_alwon_clkctrl_regs[] __initconst = {
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{ DM816_UART1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
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{ DM816_UART2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
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{ DM816_UART3_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
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{ DM816_GPIO1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
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{ DM816_GPIO2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
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{ DM816_I2C1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
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{ DM816_I2C2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
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{ DM816_TIMER1_CLKCTRL, NULL, CLKF_SW_SUP, "timer1_fck" },
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{ DM816_TIMER2_CLKCTRL, NULL, CLKF_SW_SUP, "timer2_fck" },
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{ DM816_TIMER3_CLKCTRL, NULL, CLKF_SW_SUP, "timer3_fck" },
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{ DM816_TIMER4_CLKCTRL, NULL, CLKF_SW_SUP, "timer4_fck" },
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{ DM816_TIMER5_CLKCTRL, NULL, CLKF_SW_SUP, "timer5_fck" },
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{ DM816_TIMER6_CLKCTRL, NULL, CLKF_SW_SUP, "timer6_fck" },
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{ DM816_TIMER7_CLKCTRL, NULL, CLKF_SW_SUP, "timer7_fck" },
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{ DM816_WD_TIMER_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk18_ck" },
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{ DM816_MCSPI1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
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{ DM816_MAILBOX_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
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{ DM816_SPINBOX_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
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{ DM816_MMC1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
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{ DM816_GPMC_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
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{ DM816_DAVINCI_MDIO_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk24_ck" },
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{ DM816_EMAC1_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk24_ck" },
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{ DM816_MPU_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk2_ck" },
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{ DM816_RTC_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk18_ck" },
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{ DM816_TPCC_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
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{ DM816_TPTC0_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
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{ DM816_TPTC1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
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{ DM816_TPTC2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
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{ DM816_TPTC3_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
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{ 0 },
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};
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const struct omap_clkctrl_data dm816_clkctrl_data[] __initconst = {
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{ 0x48180500, dm816_default_clkctrl_regs },
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{ 0x48181400, dm816_alwon_clkctrl_regs },
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{ 0 },
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};
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static struct ti_dt_clk dm816x_clks[] = {
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DT_CLK(NULL, "sys_clkin", "sys_clkin_ck"),
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DT_CLK(NULL, "timer_sys_ck", "sys_clkin_ck"),
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DT_CLK(NULL, "timer_32k_ck", "sysclk18_ck"),
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DT_CLK(NULL, "timer_ext_ck", "tclkin_ck"),
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{ .node_name = NULL },
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};
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static const char *enable_init_clks[] = {
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"ddr_pll_clk1",
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"ddr_pll_clk2",
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"ddr_pll_clk3",
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"sysclk6_ck",
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};
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int __init dm816x_dt_clk_init(void)
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{
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ti_dt_clocks_register(dm816x_clks);
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omap2_clk_disable_autoidle_all();
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ti_clk_add_aliases();
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omap2_clk_enable_init_clocks(enable_init_clks,
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ARRAY_SIZE(enable_init_clks));
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return 0;
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}
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