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.
289 lines
7.3 KiB
289 lines
7.3 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
#include <linux/clk-provider.h> |
|
#include <linux/mfd/syscon.h> |
|
#include <linux/slab.h> |
|
|
|
#include <dt-bindings/clock/at91.h> |
|
|
|
#include "pmc.h" |
|
|
|
static DEFINE_SPINLOCK(mck_lock); |
|
|
|
static const struct clk_master_characteristics mck_characteristics = { |
|
.output = { .min = 125000000, .max = 200000000 }, |
|
.divisors = { 1, 2, 4, 3 }, |
|
}; |
|
|
|
static u8 plla_out[] = { 0 }; |
|
|
|
static u16 plla_icpll[] = { 0 }; |
|
|
|
static const struct clk_range plla_outputs[] = { |
|
{ .min = 600000000, .max = 1200000000 }, |
|
}; |
|
|
|
static const struct clk_pll_characteristics plla_characteristics = { |
|
.input = { .min = 12000000, .max = 12000000 }, |
|
.num_output = ARRAY_SIZE(plla_outputs), |
|
.output = plla_outputs, |
|
.icpll = plla_icpll, |
|
.out = plla_out, |
|
}; |
|
|
|
static const struct clk_pcr_layout sama5d4_pcr_layout = { |
|
.offset = 0x10c, |
|
.cmd = BIT(12), |
|
.pid_mask = GENMASK(6, 0), |
|
}; |
|
|
|
static const struct { |
|
char *n; |
|
char *p; |
|
u8 id; |
|
} sama5d4_systemck[] = { |
|
{ .n = "ddrck", .p = "masterck_div", .id = 2 }, |
|
{ .n = "lcdck", .p = "masterck_div", .id = 3 }, |
|
{ .n = "smdck", .p = "smdclk", .id = 4 }, |
|
{ .n = "uhpck", .p = "usbck", .id = 6 }, |
|
{ .n = "udpck", .p = "usbck", .id = 7 }, |
|
{ .n = "pck0", .p = "prog0", .id = 8 }, |
|
{ .n = "pck1", .p = "prog1", .id = 9 }, |
|
{ .n = "pck2", .p = "prog2", .id = 10 }, |
|
}; |
|
|
|
static const struct { |
|
char *n; |
|
u8 id; |
|
} sama5d4_periph32ck[] = { |
|
{ .n = "pioD_clk", .id = 5 }, |
|
{ .n = "usart0_clk", .id = 6 }, |
|
{ .n = "usart1_clk", .id = 7 }, |
|
{ .n = "icm_clk", .id = 9 }, |
|
{ .n = "aes_clk", .id = 12 }, |
|
{ .n = "tdes_clk", .id = 14 }, |
|
{ .n = "sha_clk", .id = 15 }, |
|
{ .n = "matrix1_clk", .id = 17 }, |
|
{ .n = "hsmc_clk", .id = 22 }, |
|
{ .n = "pioA_clk", .id = 23 }, |
|
{ .n = "pioB_clk", .id = 24 }, |
|
{ .n = "pioC_clk", .id = 25 }, |
|
{ .n = "pioE_clk", .id = 26 }, |
|
{ .n = "uart0_clk", .id = 27 }, |
|
{ .n = "uart1_clk", .id = 28 }, |
|
{ .n = "usart2_clk", .id = 29 }, |
|
{ .n = "usart3_clk", .id = 30 }, |
|
{ .n = "usart4_clk", .id = 31 }, |
|
{ .n = "twi0_clk", .id = 32 }, |
|
{ .n = "twi1_clk", .id = 33 }, |
|
{ .n = "twi2_clk", .id = 34 }, |
|
{ .n = "mci0_clk", .id = 35 }, |
|
{ .n = "mci1_clk", .id = 36 }, |
|
{ .n = "spi0_clk", .id = 37 }, |
|
{ .n = "spi1_clk", .id = 38 }, |
|
{ .n = "spi2_clk", .id = 39 }, |
|
{ .n = "tcb0_clk", .id = 40 }, |
|
{ .n = "tcb1_clk", .id = 41 }, |
|
{ .n = "tcb2_clk", .id = 42 }, |
|
{ .n = "pwm_clk", .id = 43 }, |
|
{ .n = "adc_clk", .id = 44 }, |
|
{ .n = "dbgu_clk", .id = 45 }, |
|
{ .n = "uhphs_clk", .id = 46 }, |
|
{ .n = "udphs_clk", .id = 47 }, |
|
{ .n = "ssc0_clk", .id = 48 }, |
|
{ .n = "ssc1_clk", .id = 49 }, |
|
{ .n = "trng_clk", .id = 53 }, |
|
{ .n = "macb0_clk", .id = 54 }, |
|
{ .n = "macb1_clk", .id = 55 }, |
|
{ .n = "fuse_clk", .id = 57 }, |
|
{ .n = "securam_clk", .id = 59 }, |
|
{ .n = "smd_clk", .id = 61 }, |
|
{ .n = "twi3_clk", .id = 62 }, |
|
{ .n = "catb_clk", .id = 63 }, |
|
}; |
|
|
|
static const struct { |
|
char *n; |
|
u8 id; |
|
} sama5d4_periphck[] = { |
|
{ .n = "dma0_clk", .id = 8 }, |
|
{ .n = "cpkcc_clk", .id = 10 }, |
|
{ .n = "aesb_clk", .id = 13 }, |
|
{ .n = "mpddr_clk", .id = 16 }, |
|
{ .n = "matrix0_clk", .id = 18 }, |
|
{ .n = "vdec_clk", .id = 19 }, |
|
{ .n = "dma1_clk", .id = 50 }, |
|
{ .n = "lcdc_clk", .id = 51 }, |
|
{ .n = "isi_clk", .id = 52 }, |
|
}; |
|
|
|
static void __init sama5d4_pmc_setup(struct device_node *np) |
|
{ |
|
struct clk_range range = CLK_RANGE(0, 0); |
|
const char *slck_name, *mainxtal_name; |
|
struct pmc_data *sama5d4_pmc; |
|
const char *parent_names[5]; |
|
struct regmap *regmap; |
|
struct clk_hw *hw; |
|
int i; |
|
bool bypass; |
|
|
|
i = of_property_match_string(np, "clock-names", "slow_clk"); |
|
if (i < 0) |
|
return; |
|
|
|
slck_name = of_clk_get_parent_name(np, i); |
|
|
|
i = of_property_match_string(np, "clock-names", "main_xtal"); |
|
if (i < 0) |
|
return; |
|
mainxtal_name = of_clk_get_parent_name(np, i); |
|
|
|
regmap = device_node_to_regmap(np); |
|
if (IS_ERR(regmap)) |
|
return; |
|
|
|
sama5d4_pmc = pmc_data_allocate(PMC_PLLACK + 1, |
|
nck(sama5d4_systemck), |
|
nck(sama5d4_periph32ck), 0, 3); |
|
if (!sama5d4_pmc) |
|
return; |
|
|
|
hw = at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000000, |
|
100000000); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
bypass = of_property_read_bool(np, "atmel,osc-bypass"); |
|
|
|
hw = at91_clk_register_main_osc(regmap, "main_osc", mainxtal_name, |
|
bypass); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
parent_names[0] = "main_rc_osc"; |
|
parent_names[1] = "main_osc"; |
|
hw = at91_clk_register_sam9x5_main(regmap, "mainck", parent_names, 2); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
hw = at91_clk_register_pll(regmap, "pllack", "mainck", 0, |
|
&sama5d3_pll_layout, &plla_characteristics); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
hw = at91_clk_register_plldiv(regmap, "plladivck", "pllack"); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
sama5d4_pmc->chws[PMC_PLLACK] = hw; |
|
|
|
hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck"); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
sama5d4_pmc->chws[PMC_UTMI] = hw; |
|
|
|
parent_names[0] = slck_name; |
|
parent_names[1] = "mainck"; |
|
parent_names[2] = "plladivck"; |
|
parent_names[3] = "utmick"; |
|
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4, |
|
parent_names, |
|
&at91sam9x5_master_layout, |
|
&mck_characteristics, &mck_lock); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
hw = at91_clk_register_master_div(regmap, "masterck_div", |
|
"masterck_pres", |
|
&at91sam9x5_master_layout, |
|
&mck_characteristics, &mck_lock, |
|
CLK_SET_RATE_GATE, 0); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
sama5d4_pmc->chws[PMC_MCK] = hw; |
|
|
|
hw = at91_clk_register_h32mx(regmap, "h32mxck", "masterck_div"); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
sama5d4_pmc->chws[PMC_MCK2] = hw; |
|
|
|
parent_names[0] = "plladivck"; |
|
parent_names[1] = "utmick"; |
|
hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, 2); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
parent_names[0] = "plladivck"; |
|
parent_names[1] = "utmick"; |
|
hw = at91sam9x5_clk_register_smd(regmap, "smdclk", parent_names, 2); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
parent_names[0] = slck_name; |
|
parent_names[1] = "mainck"; |
|
parent_names[2] = "plladivck"; |
|
parent_names[3] = "utmick"; |
|
parent_names[4] = "masterck_div"; |
|
for (i = 0; i < 3; i++) { |
|
char name[6]; |
|
|
|
snprintf(name, sizeof(name), "prog%d", i); |
|
|
|
hw = at91_clk_register_programmable(regmap, name, |
|
parent_names, 5, i, |
|
&at91sam9x5_programmable_layout, |
|
NULL); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
sama5d4_pmc->pchws[i] = hw; |
|
} |
|
|
|
for (i = 0; i < ARRAY_SIZE(sama5d4_systemck); i++) { |
|
hw = at91_clk_register_system(regmap, sama5d4_systemck[i].n, |
|
sama5d4_systemck[i].p, |
|
sama5d4_systemck[i].id); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
sama5d4_pmc->shws[sama5d4_systemck[i].id] = hw; |
|
} |
|
|
|
for (i = 0; i < ARRAY_SIZE(sama5d4_periphck); i++) { |
|
hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock, |
|
&sama5d4_pcr_layout, |
|
sama5d4_periphck[i].n, |
|
"masterck_div", |
|
sama5d4_periphck[i].id, |
|
&range, INT_MIN); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
sama5d4_pmc->phws[sama5d4_periphck[i].id] = hw; |
|
} |
|
|
|
for (i = 0; i < ARRAY_SIZE(sama5d4_periph32ck); i++) { |
|
hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock, |
|
&sama5d4_pcr_layout, |
|
sama5d4_periph32ck[i].n, |
|
"h32mxck", |
|
sama5d4_periph32ck[i].id, |
|
&range, INT_MIN); |
|
if (IS_ERR(hw)) |
|
goto err_free; |
|
|
|
sama5d4_pmc->phws[sama5d4_periph32ck[i].id] = hw; |
|
} |
|
|
|
of_clk_add_hw_provider(np, of_clk_hw_pmc_get, sama5d4_pmc); |
|
|
|
return; |
|
|
|
err_free: |
|
kfree(sama5d4_pmc); |
|
} |
|
|
|
CLK_OF_DECLARE(sama5d4_pmc, "atmel,sama5d4-pmc", sama5d4_pmc_setup);
|
|
|