mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
3.4 KiB
118 lines
3.4 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
|
|
#include <linux/kernel.h> |
|
#include <linux/clk.h> |
|
#include <linux/clk-provider.h> |
|
#include <linux/clk/ti.h> |
|
#include <linux/of_platform.h> |
|
#include <dt-bindings/clock/dm814.h> |
|
|
|
#include "clock.h" |
|
|
|
static const struct omap_clkctrl_reg_data dm814_default_clkctrl_regs[] __initconst = { |
|
{ DM814_USB_OTG_HS_CLKCTRL, NULL, CLKF_SW_SUP, "pll260dcoclkldo" }, |
|
{ 0 }, |
|
}; |
|
|
|
static const struct omap_clkctrl_reg_data dm814_alwon_clkctrl_regs[] __initconst = { |
|
{ DM814_UART1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" }, |
|
{ DM814_UART2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" }, |
|
{ DM814_UART3_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" }, |
|
{ DM814_GPIO1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" }, |
|
{ DM814_GPIO2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" }, |
|
{ DM814_I2C1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" }, |
|
{ DM814_I2C2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" }, |
|
{ DM814_WD_TIMER_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk18_ck" }, |
|
{ DM814_MCSPI1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk10_ck" }, |
|
{ DM814_GPMC_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk6_ck" }, |
|
{ DM814_MPU_CLKCTRL, NULL, CLKF_SW_SUP, "mpu_ck" }, |
|
{ DM814_RTC_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "sysclk18_ck" }, |
|
{ DM814_TPCC_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" }, |
|
{ DM814_TPTC0_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" }, |
|
{ DM814_TPTC1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" }, |
|
{ DM814_TPTC2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" }, |
|
{ DM814_TPTC3_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk4_ck" }, |
|
{ DM814_MMC1_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk8_ck" }, |
|
{ DM814_MMC2_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk8_ck" }, |
|
{ DM814_MMC3_CLKCTRL, NULL, CLKF_SW_SUP, "sysclk8_ck" }, |
|
{ 0 }, |
|
}; |
|
|
|
static const struct |
|
omap_clkctrl_reg_data dm814_alwon_ethernet_clkctrl_regs[] __initconst = { |
|
{ 0, NULL, CLKF_SW_SUP, "cpsw_125mhz_gclk" }, |
|
}; |
|
|
|
const struct omap_clkctrl_data dm814_clkctrl_data[] __initconst = { |
|
{ 0x48180500, dm814_default_clkctrl_regs }, |
|
{ 0x48181400, dm814_alwon_clkctrl_regs }, |
|
{ 0x481815d4, dm814_alwon_ethernet_clkctrl_regs }, |
|
{ 0 }, |
|
}; |
|
|
|
static struct ti_dt_clk dm814_clks[] = { |
|
DT_CLK(NULL, "timer_sys_ck", "devosc_ck"), |
|
{ .node_name = NULL }, |
|
}; |
|
|
|
static bool timer_clocks_initialized; |
|
|
|
static int __init dm814x_adpll_early_init(void) |
|
{ |
|
struct device_node *np; |
|
|
|
if (!timer_clocks_initialized) |
|
return -ENODEV; |
|
|
|
np = of_find_node_by_name(NULL, "pllss"); |
|
if (!np) { |
|
pr_err("Could not find node for plls\n"); |
|
return -ENODEV; |
|
} |
|
|
|
of_platform_populate(np, NULL, NULL, NULL); |
|
of_node_put(np); |
|
|
|
return 0; |
|
} |
|
core_initcall(dm814x_adpll_early_init); |
|
|
|
static const char * const init_clocks[] = { |
|
"pll040clkout", /* MPU 481c5040.adpll.clkout */ |
|
"pll290clkout", /* DDR 481c5290.adpll.clkout */ |
|
}; |
|
|
|
static int __init dm814x_adpll_enable_init_clocks(void) |
|
{ |
|
int i, err; |
|
|
|
if (!timer_clocks_initialized) |
|
return -ENODEV; |
|
|
|
for (i = 0; i < ARRAY_SIZE(init_clocks); i++) { |
|
struct clk *clock; |
|
|
|
clock = clk_get(NULL, init_clocks[i]); |
|
if (WARN(IS_ERR(clock), "could not find init clock %s\n", |
|
init_clocks[i])) |
|
continue; |
|
err = clk_prepare_enable(clock); |
|
if (WARN(err, "could not enable init clock %s\n", |
|
init_clocks[i])) |
|
continue; |
|
} |
|
|
|
return 0; |
|
} |
|
postcore_initcall(dm814x_adpll_enable_init_clocks); |
|
|
|
int __init dm814x_dt_clk_init(void) |
|
{ |
|
ti_dt_clocks_register(dm814_clks); |
|
omap2_clk_disable_autoidle_all(); |
|
ti_clk_add_aliases(); |
|
omap2_clk_enable_init_clocks(NULL, 0); |
|
timer_clocks_initialized = true; |
|
|
|
return 0; |
|
}
|
|
|