xref: /openbmc/linux/drivers/clk/ti/clk-816x.c (revision 52e6676e)
1 // SPDX-License-Identifier: GPL-2.0-only
2 
3 #include <linux/kernel.h>
4 #include <linux/list.h>
5 #include <linux/clk-provider.h>
6 #include <linux/clk/ti.h>
7 #include <dt-bindings/clock/dm816.h>
8 
9 #include "clock.h"
10 
11 static const struct omap_clkctrl_reg_data dm816_default_clkctrl_regs[] __initconst = {
12 	{ DM816_USB_OTG_HS_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
13 	{ 0 },
14 };
15 
16 static const struct omap_clkctrl_reg_data dm816_alwon_clkctrl_regs[] __initconst = {
17 	{ DM816_UART1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
18 	{ DM816_UART2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
19 	{ DM816_UART3_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
20 	{ DM816_GPIO1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
21 	{ DM816_GPIO2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
22 	{ DM816_I2C1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
23 	{ DM816_I2C2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
24 	{ DM816_TIMER1_CLKCTRL, NULL, CLKF_SW_SUP, "timer1_fck" },
25 	{ DM816_TIMER2_CLKCTRL, NULL, CLKF_SW_SUP, "timer2_fck" },
26 	{ DM816_TIMER3_CLKCTRL, NULL, CLKF_SW_SUP, "timer3_fck" },
27 	{ DM816_TIMER4_CLKCTRL, NULL, CLKF_SW_SUP, "timer4_fck" },
28 	{ DM816_TIMER5_CLKCTRL, NULL, CLKF_SW_SUP, "timer5_fck" },
29 	{ DM816_TIMER6_CLKCTRL, NULL, CLKF_SW_SUP, "timer6_fck" },
30 	{ DM816_TIMER7_CLKCTRL, NULL, CLKF_SW_SUP, "timer7_fck" },
31 	{ DM816_WD_TIMER_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk18_ck" },
32 	{ DM816_MCSPI1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
33 	{ DM816_MAILBOX_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
34 	{ DM816_SPINBOX_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
35 	{ DM816_MMC1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" },
36 	{ DM816_GPMC_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" },
37 	{ DM816_DAVINCI_MDIO_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk24_ck" },
38 	{ DM816_EMAC1_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk24_ck" },
39 	{ DM816_MPU_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk2_ck" },
40 	{ DM816_RTC_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk18_ck" },
41 	{ DM816_TPCC_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
42 	{ DM816_TPTC0_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
43 	{ DM816_TPTC1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
44 	{ DM816_TPTC2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
45 	{ DM816_TPTC3_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" },
46 	{ 0 },
47 };
48 
49 const struct omap_clkctrl_data dm816_clkctrl_data[] __initconst = {
50 	{ 0x48180500, dm816_default_clkctrl_regs },
51 	{ 0x48181400, dm816_alwon_clkctrl_regs },
52 	{ 0 },
53 };
54 
55 static struct ti_dt_clk dm816x_clks[] = {
56 	DT_CLK(NULL, "sys_clkin", "sys_clkin_ck"),
57 	DT_CLK(NULL, "timer_sys_ck", "sys_clkin_ck"),
58 	DT_CLK(NULL, "timer_32k_ck", "sysclk18_ck"),
59 	DT_CLK(NULL, "timer_ext_ck", "tclkin_ck"),
60 	{ .node_name = NULL },
61 };
62 
63 static const char *enable_init_clks[] = {
64 	"ddr_pll_clk1",
65 	"ddr_pll_clk2",
66 	"ddr_pll_clk3",
67 	"sysclk6_ck",
68 };
69 
dm816x_dt_clk_init(void)70 int __init dm816x_dt_clk_init(void)
71 {
72 	ti_dt_clocks_register(dm816x_clks);
73 	omap2_clk_disable_autoidle_all();
74 	ti_clk_add_aliases();
75 	omap2_clk_enable_init_clocks(enable_init_clks,
76 				     ARRAY_SIZE(enable_init_clks));
77 
78 	return 0;
79 }
80