[U-Boot] [PATCH v2 08/20] arm: socfpga: Add clock driver for Arria 10
Marek Vasut
marex at denx.de
Fri Mar 10 01:47:14 UTC 2017
On 03/09/2017 01:26 AM, Ley Foon Tan wrote:
> Add clock driver support for Arria 10.
>
> Signed-off-by: Tien Fong Chee <tien.fong.chee at intel.com>
> Signed-off-by: Ley Foon Tan <ley.foon.tan at intel.com>
> ---
> arch/arm/mach-socfpga/Makefile | 3 +-
> arch/arm/mach-socfpga/clock_manager.c | 18 +-
> arch/arm/mach-socfpga/clock_manager_arria10.c | 1104 ++++++++++++++++++++
> arch/arm/mach-socfpga/include/mach/clock_manager.h | 6 +
> .../include/mach/clock_manager_arria10.h | 222 ++++
> 5 files changed, 1350 insertions(+), 3 deletions(-)
> create mode 100644 arch/arm/mach-socfpga/clock_manager_arria10.c
> create mode 100644 arch/arm/mach-socfpga/include/mach/clock_manager_arria10.h
>
> diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
> index d81f003..c494930 100644
> --- a/arch/arm/mach-socfpga/Makefile
> +++ b/arch/arm/mach-socfpga/Makefile
> @@ -10,7 +10,8 @@
> obj-y += misc.o timer.o reset_manager.o clock_manager.o \
> fpga_manager.o board.o
>
> -obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += reset_manager_arria10.o
> +obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += clock_manager_arria10.o \
> + reset_manager_arria10.o
>
> obj-$(CONFIG_SPL_BUILD) += spl.o freeze_controller.o
>
> diff --git a/arch/arm/mach-socfpga/clock_manager.c b/arch/arm/mach-socfpga/clock_manager.c
> index c2af6f3..ad602c8 100644
> --- a/arch/arm/mach-socfpga/clock_manager.c
> +++ b/arch/arm/mach-socfpga/clock_manager.c
> @@ -5,6 +5,8 @@
> */
>
> #include <common.h>
> +#include <fdtdec.h>
> +#include <wait_bit.h>
> #include <asm/io.h>
> #include <asm/arch/clock_manager.h>
>
> @@ -18,7 +20,12 @@ void cm_wait_for_lock(u32 mask)
> u32 inter_val;
> u32 retry = 0;
> do {
> +#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
> inter_val = readl(&clock_manager_base->inter) & mask;
> +#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
> + inter_val = readl(&clock_manager_base->stat) & mask;
> +#endif
> + /* Wait for stable lock */
> if (inter_val == mask)
> retry++;
> else
> @@ -31,8 +38,10 @@ void cm_wait_for_lock(u32 mask)
> /* function to poll in the fsm busy bit */
> void cm_wait_for_fsm(void)
> {
> - while (readl(&clock_manager_base->stat) & CLKMGR_STAT_BUSY)
> - ;
> + wait_for_bit(__func__, (const u32 *)&clock_manager_base->stat,
> + CLKMGR_CLKMGR_STAT_BUSY_SET_MSK,
> + false, 20000, false);
Please do test this change on CV or AV if you didn't already.
> +
> }
>
> int set_cpu_clk_info(void)
> @@ -43,7 +52,12 @@ int set_cpu_clk_info(void)
>
> gd->bd->bi_arm_freq = cm_get_mpu_clk_hz() / 1000000;
> gd->bd->bi_dsp_freq = 0;
> +
> +#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
> gd->bd->bi_ddr_freq = cm_get_sdram_clk_hz() / 1000000;
> +#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
> + gd->bd->bi_ddr_freq = 0;
> +#endif
>
> return 0;
> }
> diff --git a/arch/arm/mach-socfpga/clock_manager_arria10.c b/arch/arm/mach-socfpga/clock_manager_arria10.c
> new file mode 100644
> index 0000000..67b3e58
> --- /dev/null
> +++ b/arch/arm/mach-socfpga/clock_manager_arria10.c
> @@ -0,0 +1,1104 @@
> +/*
> + * Copyright (C) 2016-2017 Intel Corporation
> + *
> + * SPDX-License-Identifier: GPL-2.0
> + */
> +
> +#include <common.h>
> +#include <fdtdec.h>
> +#include <asm/io.h>
> +#include <asm/arch/clock_manager.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +static u32 eosc1_hz;
> +static u32 cb_intosc_hz;
> +static u32 f2s_free_hz;
> +static u32 cm_l4_main_clk_hz;
> +static u32 cm_l4_sp_clk_hz;
> +static u32 cm_l4_mp_clk_hz;
> +static u32 cm_l4_sys_free_clk_hz;
> +
> +struct mainpll_cfg {
> + u32 vco0_psrc;
> + u32 vco1_denom;
> + u32 vco1_numer;
> + u32 mpuclk;
> + u32 mpuclk_cnt;
> + u32 mpuclk_src;
> + u32 nocclk;
> + u32 nocclk_cnt;
> + u32 nocclk_src;
> + u32 cntr2clk_cnt;
> + u32 cntr3clk_cnt;
> + u32 cntr4clk_cnt;
> + u32 cntr5clk_cnt;
> + u32 cntr6clk_cnt;
> + u32 cntr7clk_cnt;
> + u32 cntr7clk_src;
> + u32 cntr8clk_cnt;
> + u32 cntr9clk_cnt;
> + u32 cntr9clk_src;
> + u32 cntr15clk_cnt;
> + u32 nocdiv_l4mainclk;
> + u32 nocdiv_l4mpclk;
> + u32 nocdiv_l4spclk;
> + u32 nocdiv_csatclk;
> + u32 nocdiv_cstraceclk;
> + u32 nocdiv_cspdbclk;
> +};
> +
> +struct perpll_cfg {
> + u32 vco0_psrc;
> + u32 vco1_denom;
> + u32 vco1_numer;
> + u32 cntr2clk_cnt;
> + u32 cntr2clk_src;
> + u32 cntr3clk_cnt;
> + u32 cntr3clk_src;
> + u32 cntr4clk_cnt;
> + u32 cntr4clk_src;
> + u32 cntr5clk_cnt;
> + u32 cntr5clk_src;
> + u32 cntr6clk_cnt;
> + u32 cntr6clk_src;
> + u32 cntr7clk_cnt;
> + u32 cntr8clk_cnt;
> + u32 cntr8clk_src;
> + u32 cntr9clk_cnt;
> + u32 emacctl_emac0sel;
> + u32 emacctl_emac1sel;
> + u32 emacctl_emac2sel;
> + u32 gpiodiv_gpiodbclk;
> +};
> +
> +struct alteragrp_cfg {
> + u32 nocclk;
> + u32 mpuclk;
> +};
> +
> +static const struct socfpga_clock_manager *clock_manager_base =
> + (struct socfpga_clock_manager *)SOCFPGA_CLKMGR_ADDRESS;
> +
> +static int of_to_struct(const void *blob, int node, int cfg_len, void *cfg)
> +{
> + if (fdtdec_get_int_array(blob, node, "altr,of_reg_value",
> + (u32 *)cfg, cfg_len)) {
> + /* could not find required property */
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int of_get_input_clks(const void *blob, int node, u32 *val)
> +{
> + *val = fdtdec_get_uint(blob, node, "clock-frequency", 0);
> + if (!*val)
> + return -EINVAL;
> +
> + return 0;
> +}
> +
> +static int of_get_clk_cfg(const void *blob, struct mainpll_cfg *main_cfg,
> + struct perpll_cfg *per_cfg,
> + struct alteragrp_cfg *altrgrp_cfg)
> +{
> + int node, child, len;
> + const char *node_name;
> +
> + node = fdtdec_next_compatible(blob, 0, COMPAT_ALTERA_SOCFPGA_CLK);
> + if (node < 0)
> + return -EINVAL;
> +
> + child = fdt_first_subnode(blob, node);
> + if (child < 0)
> + return -EINVAL;
> +
> + child = fdt_first_subnode(blob, child);
> + if (child < 0)
> + return -EINVAL;
> +
> + node_name = fdt_get_name(blob, child, &len);
> +
> + while (node_name) {
> + if (!strcmp(node_name, "osc1")) {
> + if (of_get_input_clks(blob, child, &eosc1_hz))
> + return -EINVAL;
> + } else if (!strcmp(node_name, "cb_intosc_ls_clk")) {
> + if (of_get_input_clks(blob, child, &cb_intosc_hz))
> + return -EINVAL;
> + } else if (!strcmp(node_name, "f2s_free_clk")) {
> + if (of_get_input_clks(blob, child, &f2s_free_hz))
> + return -EINVAL;
> + } else if (!strcmp(node_name, "main_pll")) {
> + if (of_to_struct(blob, child,
> + sizeof(*main_cfg)/sizeof(u32),
> + main_cfg))
> + return -EINVAL;
> + } else if (!strcmp(node_name, "periph_pll")) {
> + if (of_to_struct(blob, child,
> + sizeof(*per_cfg)/sizeof(u32),
> + per_cfg))
> + return -EINVAL;
> + } else if (!strcmp(node_name, "altera")) {
> + if (of_to_struct(blob, child,
> + sizeof(*altrgrp_cfg)/sizeof(u32),
> + altrgrp_cfg))
> + return -EINVAL;
> +
> + main_cfg->mpuclk = altrgrp_cfg->mpuclk;
> + main_cfg->nocclk = altrgrp_cfg->nocclk;
> + }
> + child = fdt_next_subnode(blob, child);
> +
> + if (child < 0)
> + break;
> +
> + node_name = fdt_get_name(blob, child, &len);
> + }
> +
> + return 0;
> +}
> +
> +/* calculate the intended main VCO frequency based on handoff */
> +static unsigned int cm_calc_handoff_main_vco_clk_hz
> + (struct mainpll_cfg *main_cfg)
> +{
> + unsigned int clk_hz;
> +
> + /* Check main VCO clock source: eosc, intosc or f2s? */
> + switch (main_cfg->vco0_psrc) {
> + case CLKMGR_MAINPLL_VCO0_PSRC_EOSC:
> + clk_hz = eosc1_hz;
> + break;
> + case CLKMGR_MAINPLL_VCO0_PSRC_E_INTOSC:
> + clk_hz = cb_intosc_hz;
> + break;
> + case CLKMGR_MAINPLL_VCO0_PSRC_F2S:
> + clk_hz = f2s_free_hz;
> + break;
> + default:
> + return 0;
> + }
> +
> + /* calculate the VCO frequency */
> + clk_hz /= (1 + main_cfg->vco1_denom);
> + clk_hz *= (1 + main_cfg->vco1_numer);
> +
> + return clk_hz;
> +}
> +
> +/* calculate the intended periph VCO frequency based on handoff */
> +static unsigned int cm_calc_handoff_periph_vco_clk_hz(
> + struct mainpll_cfg *main_cfg, struct perpll_cfg *per_cfg)
> +{
> + unsigned int clk_hz;
> +
> + /* Check periph VCO clock source: eosc, intosc, f2s or mainpll? */
> + switch (per_cfg->vco0_psrc) {
> + case CLKMGR_PERPLL_VCO0_PSRC_EOSC:
> + clk_hz = eosc1_hz;
> + break;
> + case CLKMGR_PERPLL_VCO0_PSRC_E_INTOSC:
> + clk_hz = cb_intosc_hz;
> + break;
> + case CLKMGR_PERPLL_VCO0_PSRC_F2S:
> + clk_hz = f2s_free_hz;
> + break;
> + case CLKMGR_PERPLL_VCO0_PSRC_MAIN:
> + clk_hz = cm_calc_handoff_main_vco_clk_hz(main_cfg);
> + clk_hz /= main_cfg->cntr15clk_cnt;
> + break;
> + default:
> + return 0;
> + }
> +
> + /* calculate the VCO frequency */
> + clk_hz /= (1 + per_cfg->vco1_denom);
> + clk_hz *= (1 + per_cfg->vco1_numer);
Extra parenthesis around statement not needed, fix globally.
> + return clk_hz;
> +}
> +
> +/* calculate the intended MPU clock frequency based on handoff */
> +static unsigned int cm_calc_handoff_mpu_clk_hz(struct mainpll_cfg *main_cfg,
> + struct perpll_cfg *per_cfg)
> +{
> + unsigned int clk_hz;
> +
> + /* Check MPU clock source: main, periph, osc1, intosc or f2s? */
> + switch (main_cfg->mpuclk_src) {
> + case CLKMGR_MAINPLL_MPUCLK_SRC_MAIN:
> + clk_hz = cm_calc_handoff_main_vco_clk_hz(main_cfg);
> + clk_hz /= ((main_cfg->mpuclk & CLKMGR_MAINPLL_MPUCLK_CNT_MSK)
> + + 1);
DTTO
> + break;
> + case CLKMGR_MAINPLL_MPUCLK_SRC_PERI:
> + clk_hz = cm_calc_handoff_periph_vco_clk_hz(main_cfg, per_cfg);
> + clk_hz /= (((main_cfg->mpuclk >>
> + CLKMGR_MAINPLL_MPUCLK_PERICNT_LSB) &
> + CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1);
DTTO
> + break;
> + case CLKMGR_MAINPLL_MPUCLK_SRC_OSC1:
> + clk_hz = eosc1_hz;
> + break;
> + case CLKMGR_MAINPLL_MPUCLK_SRC_INTOSC:
> + clk_hz = cb_intosc_hz;
> + break;
> + case CLKMGR_MAINPLL_MPUCLK_SRC_FPGA:
> + clk_hz = f2s_free_hz;
> + break;
> + default:
> + return 0;
> + }
> +
> + clk_hz /= (main_cfg->mpuclk_cnt + 1);
> + return clk_hz;
> +}
> +
> +/* calculate the intended NOC clock frequency based on handoff */
> +static unsigned int cm_calc_handoff_noc_clk_hz(struct mainpll_cfg *main_cfg,
> + struct perpll_cfg *per_cfg)
> +{
> + unsigned int clk_hz;
> +
> + /* Check MPU clock source: main, periph, osc1, intosc or f2s? */
> + switch (main_cfg->nocclk_src) {
> + case CLKMGR_MAINPLL_NOCCLK_SRC_MAIN:
> + clk_hz = cm_calc_handoff_main_vco_clk_hz(main_cfg);
> + clk_hz /= ((main_cfg->nocclk & CLKMGR_MAINPLL_NOCCLK_CNT_MSK)
> + + 1);
DTTO
> + break;
> + case CLKMGR_MAINPLL_NOCCLK_SRC_PERI:
> + clk_hz = cm_calc_handoff_periph_vco_clk_hz(main_cfg, per_cfg);
> + clk_hz /= (((main_cfg->nocclk >>
> + CLKMGR_MAINPLL_NOCCLK_PERICNT_LSB) &
> + CLKMGR_MAINPLL_NOCCLK_CNT_MSK) + 1);
DTTO
> + break;
> + case CLKMGR_MAINPLL_NOCCLK_SRC_OSC1:
> + clk_hz = eosc1_hz;
> + break;
> + case CLKMGR_MAINPLL_NOCCLK_SRC_INTOSC:
> + clk_hz = cb_intosc_hz;
> + break;
> + case CLKMGR_MAINPLL_NOCCLK_SRC_FPGA:
> + clk_hz = f2s_free_hz;
> + break;
> + default:
> + return 0;
> + }
> +
> + clk_hz /= (main_cfg->nocclk_cnt + 1);
> + return clk_hz;
> +}
> +
> +/* return 1 if PLL ramp is required */
> +static int cm_is_pll_ramp_required(int main0periph1,
> + struct mainpll_cfg *main_cfg,
> + struct perpll_cfg *per_cfg)
> +{
> + /* Check for main PLL */
> + if (main0periph1 == 0) {
> + /*
> + * PLL ramp is not required if both MPU clock and NOC clock are
> + * not sourced from main PLL
> + */
> + if (main_cfg->mpuclk_src != CLKMGR_MAINPLL_MPUCLK_SRC_MAIN &&
> + main_cfg->nocclk_src != CLKMGR_MAINPLL_NOCCLK_SRC_MAIN)
> + return 0;
> +
> + /*
> + * PLL ramp is required if MPU clock is sourced from main PLL
> + * and MPU clock is over 900MHz (as advised by HW team)
> + */
> + if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_MAIN &&
> + (cm_calc_handoff_mpu_clk_hz(main_cfg, per_cfg) >
> + CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ))
> + return 1;
> +
> + /*
> + * PLL ramp is required if NOC clock is sourced from main PLL
> + * and NOC clock is over 300MHz (as advised by HW team)
> + */
> + if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_MAIN &&
> + (cm_calc_handoff_noc_clk_hz(main_cfg, per_cfg) >
> + CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ))
> + return 2;
> +
> + } else if (main0periph1 == 1) {
> + /*
> + * PLL ramp is not required if both MPU clock and NOC clock are
> + * not sourced from periph PLL
> + */
> + if (main_cfg->mpuclk_src != CLKMGR_MAINPLL_MPUCLK_SRC_PERI &&
> + main_cfg->nocclk_src != CLKMGR_MAINPLL_NOCCLK_SRC_PERI)
> + return 0;
> +
> + /*
> + * PLL ramp is required if MPU clock are source from periph PLL
> + * and MPU clock is over 900MHz (as advised by HW team)
> + */
> + if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_PERI &&
> + (cm_calc_handoff_mpu_clk_hz(main_cfg, per_cfg) >
> + CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ))
> + return 1;
> +
> + /*
> + * PLL ramp is required if NOC clock are source from periph PLL
> + * and NOC clock is over 300MHz (as advised by HW team)
> + */
> + if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_PERI &&
> + (cm_calc_handoff_noc_clk_hz(main_cfg, per_cfg) >
> + CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ))
> + return 2;
> + }
> +
> + return 0;
> +}
> +
> +/*
> + * Calculate the new PLL numerator which is based on existing DTS hand off and
> + * intended safe frequency (safe_hz). Note that PLL ramp is only modifying the
> + * numerator while maintaining denominator as denominator will influence the
> + * jitter condition. Please refer A10 HPS TRM for the jitter guide. Note final
> + * value for numerator is minus with 1 to cater our register value
> + * representation.
> + */
> +static unsigned int cm_calc_safe_pll_numer(int main0periph1,
> + struct mainpll_cfg *main_cfg,
> + struct perpll_cfg *per_cfg,
> + unsigned int safe_hz)
> +{
> + unsigned int clk_hz = 0;
> +
> + /* Check for main PLL */
> + if (main0periph1 == 0) {
> + /* Check main VCO clock source: eosc, intosc or f2s? */
> + switch (main_cfg->vco0_psrc) {
> + case CLKMGR_MAINPLL_VCO0_PSRC_EOSC:
> + clk_hz = eosc1_hz;
> + break;
> + case CLKMGR_MAINPLL_VCO0_PSRC_E_INTOSC:
> + clk_hz = cb_intosc_hz;
> + break;
> + case CLKMGR_MAINPLL_VCO0_PSRC_F2S:
> + clk_hz = f2s_free_hz;
> + break;
> + default:
> + return 0;
> + }
> +
> + /* Applicable if MPU clock is from main PLL */
> + if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_MAIN) {
> + /* calculate the safe numer value */
> + clk_hz = (safe_hz / clk_hz) *
> + (main_cfg->mpuclk_cnt + 1) *
> + ((main_cfg->mpuclk &
> + CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1) *
> + (1 + main_cfg->vco1_denom) - 1;
Maybe you can factor out this awful equation into a function somehow ?
> + }
> + /* Reach here if MPU clk not from main PLL but NOC clk is */
> + else if (main_cfg->nocclk_src ==
> + CLKMGR_MAINPLL_NOCCLK_SRC_MAIN) {
> + /* calculate the safe numer value */
> + clk_hz = (safe_hz / clk_hz) *
> + (main_cfg->nocclk_cnt + 1) *
> + ((main_cfg->nocclk &
> + CLKMGR_MAINPLL_NOCCLK_CNT_MSK) + 1) *
> + (1 + main_cfg->vco1_denom) - 1;
> + } else
> + clk_hz = 0;
> +
> + } else if (main0periph1 == 1) {
> + /* Check periph VCO clock source: eosc, intosc, f2s, mainpll */
> + switch (per_cfg->vco0_psrc) {
> + case CLKMGR_PERPLL_VCO0_PSRC_EOSC:
> + clk_hz = eosc1_hz;
> + break;
> + case CLKMGR_PERPLL_VCO0_PSRC_E_INTOSC:
> + clk_hz = cb_intosc_hz;
> + break;
> + case CLKMGR_PERPLL_VCO0_PSRC_F2S:
> + clk_hz = f2s_free_hz;
> + break;
> + case CLKMGR_PERPLL_VCO0_PSRC_MAIN:
> + clk_hz = cm_calc_handoff_main_vco_clk_hz(
> + main_cfg);
> + clk_hz /= main_cfg->cntr15clk_cnt;
> + break;
> + default:
> + return 0;
> + }
> + /* Applicable if MPU clock is from periph PLL */
> + if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_PERI) {
> + /* calculate the safe numer value */
> + clk_hz = (safe_hz / clk_hz) *
> + (main_cfg->mpuclk_cnt + 1) *
> + (((main_cfg->mpuclk >>
> + CLKMGR_MAINPLL_MPUCLK_PERICNT_LSB) &
> + CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1) *
> + (1 + per_cfg->vco1_denom) - 1;
> + }
> + /* Reach here if MPU clk not from periph PLL but NOC clk is */
> + else if (main_cfg->nocclk_src ==
> + CLKMGR_MAINPLL_NOCCLK_SRC_PERI) {
> + /* calculate the safe numer value */
> + clk_hz = (safe_hz / clk_hz) *
> + (main_cfg->nocclk_cnt + 1) *
> + (((main_cfg->nocclk >>
> + CLKMGR_MAINPLL_NOCCLK_PERICNT_LSB) &
> + CLKMGR_MAINPLL_NOCCLK_CNT_MSK) + 1) *
> + (1 + per_cfg->vco1_denom) - 1;
> + } else
> + clk_hz = 0;
> + }
> + return clk_hz;
> +}
[...]
> +unsigned int cm_get_per_vco_clk_hz(void)
> +{
> + u32 src_hz = 0;
> + u32 clk_src = 0;
> + u32 numer = 0;
> + u32 denom = 0;
> + u32 vco = 0;
> +
> + clk_src = readl(&clock_manager_base->per_pll.vco0);
> +
> + clk_src = (clk_src >> CLKMGR_PERPLL_VCO0_PSRC_LSB) &
> + CLKMGR_PERPLL_VCO0_PSRC_MSK;
> +
> + if (clk_src == CLKMGR_PERPLL_VCO0_PSRC_EOSC) {
> + src_hz = eosc1_hz;
> + } else if (clk_src == CLKMGR_PERPLL_VCO0_PSRC_E_INTOSC) {
> + src_hz = cb_intosc_hz;
> + } else if (clk_src == CLKMGR_PERPLL_VCO0_PSRC_F2S) {
> + src_hz = f2s_free_hz;
> + } else if (clk_src == CLKMGR_PERPLL_VCO0_PSRC_MAIN) {
> + src_hz = cm_get_main_vco_clk_hz();
> + src_hz /= (readl
> + (&clock_manager_base->main_pll.cntr15clk) &
> + CLKMGR_MAINPLL_CNTRCLK_MSK) + 1;
> + } else {
> + printf("cm_get_per_vco_clk_hz invalid clk_src %d\n", clk_src);
> + return 0;
> + }
> +
> + vco = readl(&clock_manager_base->per_pll.vco1);
> +
> + numer = vco & CLKMGR_PERPLL_VCO1_NUMER_MSK;
> +
> + denom = (vco >> CLKMGR_PERPLL_VCO1_DENOM_LSB) &
> + CLKMGR_PERPLL_VCO1_DENOM_MSK;
> +
> + vco = src_hz;
> + vco /= (1 + denom);
> + vco *= (1 + numer);
Extra parenthesis, not needed ...
> + return vco;
> +}
> +
> +unsigned int cm_get_main_vco_clk_hz(void)
> +{
> + u32 src_hz, numer, denom, vco;
> +
> + u32 clk_src = readl(&clock_manager_base->main_pll.vco0);
> +
> + clk_src = (clk_src >> CLKMGR_MAINPLL_VCO0_PSRC_LSB) &
> + CLKMGR_MAINPLL_VCO0_PSRC_MSK;
> +
> + if (clk_src == CLKMGR_MAINPLL_VCO0_PSRC_EOSC) {
> + src_hz = eosc1_hz;
> + } else if (clk_src == CLKMGR_MAINPLL_VCO0_PSRC_E_INTOSC) {
> + src_hz = cb_intosc_hz;
> + } else if (clk_src == CLKMGR_MAINPLL_VCO0_PSRC_F2S) {
> + src_hz = f2s_free_hz;
> + } else {
> + printf("cm_get_main_vco_clk_hz invalid clk_src %d\n", clk_src);
> + return 0;
> + }
> +
> + vco = readl(&clock_manager_base->main_pll.vco1);
> +
> + numer = vco & CLKMGR_MAINPLL_VCO1_NUMER_MSK;
> +
> + denom = (vco >> CLKMGR_MAINPLL_VCO1_DENOM_LSB) &
> + CLKMGR_MAINPLL_VCO1_DENOM_MSK;
> +
> + vco = src_hz;
> + vco /= (1 + denom);
> + vco *= (1 + numer);
DTTO
btw this function looks just like the previous one ...
> + return vco;
> +}
> +
> +unsigned int cm_get_l4_sp_clk_hz(void)
> +{
> + return cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4SPCLK_LSB);
> +}
> +
> +unsigned int cm_get_mmc_controller_clk_hz(void)
> +{
> + u32 clk_hz = 0;
> + u32 clk_input = 0;
> +
> + clk_input = readl(&clock_manager_base->per_pll.cntr6clk);
> + clk_input = (clk_input >> CLKMGR_PERPLL_CNTR6CLK_SRC_LSB) &
> + CLKMGR_PERPLLGRP_SRC_MSK;
> +
> + switch (clk_input) {
> + case CLKMGR_PERPLLGRP_SRC_MAIN:
> + clk_hz = cm_get_main_vco_clk_hz();
> + clk_hz /= 1 +
> + (readl
> + (&clock_manager_base->main_pll.cntr6clk) &
> + CLKMGR_MAINPLL_CNTRCLK_MSK);
> + break;
> +
> + case CLKMGR_PERPLLGRP_SRC_PERI:
> + clk_hz = cm_get_per_vco_clk_hz();
> + clk_hz /= 1 + (readl
> + (&clock_manager_base->per_pll.cntr6clk) &
> + CLKMGR_PERPLL_CNTRCLK_MSK);
> + break;
> +
> + case CLKMGR_PERPLLGRP_SRC_OSC1:
> + clk_hz = eosc1_hz;
> + break;
> +
> + case CLKMGR_PERPLLGRP_SRC_INTOSC:
> + clk_hz = cb_intosc_hz;
> + break;
> +
> + case CLKMGR_PERPLLGRP_SRC_FPGA:
> + clk_hz = f2s_free_hz;
> + break;
> + }
> +
> + return clk_hz / 4;
> +}
> +
> +unsigned int cm_get_spi_controller_clk_hz(void)
> +{
> + return cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB);
> +}
> +
> +unsigned int cm_get_qspi_controller_clk_hz(void)
> +{
> + return cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MAINCLK_LSB);
> +}
> +
> +void cm_print_clock_quick_summary(void)
> +{
> + printf("MPU %10ld kHz\n", cm_get_mpu_clk_hz() / 1000);
> + printf("MMC %8d kHz\n", cm_get_mmc_controller_clk_hz() / 1000);
> + printf("QSPI %8d kHz\n",
> + cm_get_qspi_controller_clk_hz() / 1000);
> + printf("SPI %8d kHz\n", cm_get_spi_controller_clk_hz() / 1000);
> + printf("EOSC1 %8d kHz\n", eosc1_hz / 1000);
> + printf("cb_intosc %8d kHz\n", cb_intosc_hz / 1000);
> + printf("f2s_free %8d kHz\n", f2s_free_hz / 1000);
> + printf("Main VCO %8d kHz\n", cm_get_main_vco_clk_hz() / 1000);
> + printf("NOC %8d kHz\n", cm_get_noc_clk_hz() / 1000);
> + printf("L4 Main %8d kHz\n",
> + cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MAINCLK_LSB) / 1000);
> + printf("L4 MP %8d kHz\n",
> + cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB) / 1000);
> + printf("L4 SP %8d kHz\n",
> + cm_get_l4_sp_clk_hz() / 1000);
> + printf("L4 sys free %8d kHz\n", cm_l4_sys_free_clk_hz / 1000);
This should be part of the clock command ... see CV clock command.
> +}
> diff --git a/arch/arm/mach-socfpga/include/mach/clock_manager.h b/arch/arm/mach-socfpga/include/mach/clock_manager.h
> index d0d0487..ec067ae 100644
> --- a/arch/arm/mach-socfpga/include/mach/clock_manager.h
> +++ b/arch/arm/mach-socfpga/include/mach/clock_manager.h
> @@ -13,7 +13,13 @@ void cm_wait_for_fsm(void);
> void cm_print_clock_quick_summary(void);
> #endif
>
> +/* Common mask */
> +#define CLKMGR_CLKMGR_STAT_BUSY_SET_MSK 0x00000001
BIT(0) ?
> #if defined(CONFIG_TARGET_SOCFPGA_GEN5)
> #include <asm/arch/clock_manager_gen5.h>
> +#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
> +#include <asm/arch/clock_manager_arria10.h>
> #endif
> +
> #endif /* _CLOCK_MANAGER_H_ */
[...]
> +/* mask */
> +#define CLKMGR_MAINPLL_EN_S2FUSER0CLKEN_SET_MSK 0x00000040
Looks more like a BIT() to me ...
> +#define CLKMGR_MAINPLL_EN_HMCPLLREFCLKEN_SET_MSK 0x00000080
> +#define CLKMGR_CLKMGR_STAT_MAINPLLLOCKED_SET_MSK 0x00000100
> +#define CLKMGR_CLKMGR_STAT_PERPLLLOCKED_SET_MSK 0x00000200
> +#define CLKMGR_CLKMGR_STAT_BOOTCLKSRC_SET_MSK 0x00020000
> +#define CLKMGR_MAINPLL_VCO0_BGPWRDN_SET_MSK 0x00000001
> +#define CLKMGR_MAINPLL_VCO0_PWRDN_SET_MSK 0x00000002
> +#define CLKMGR_MAINPLL_VCO0_EN_SET_MSK 0x00000004
> +#define CLKMGR_MAINPLL_VCO0_OUTRSTALL_SET_MSK 0x00000008
> +#define CLKMGR_MAINPLL_VCO0_REGEXTSEL_SET_MSK 0x00000010
> +#define CLKMGR_PERPLL_VCO0_BGPWRDN_SET_MSK 0x00000001
> +#define CLKMGR_PERPLL_VCO0_PWRDN_SET_MSK 0x00000002
> +#define CLKMGR_PERPLL_VCO0_EN_SET_MSK 0x00000004
> +#define CLKMGR_PERPLL_VCO0_OUTRSTALL_SET_MSK 0x00000008
> +#define CLKMGR_PERPLL_VCO0_REGEXTSEL_SET_MSK 0x00000010
> +#define CLKMGR_CLKMGR_INTR_PERPLLFBSLIP_SET_MSK 0x00000800
> +#define CLKMGR_CLKMGR_INTR_MAINPLLFBSLIP_SET_MSK 0x00000400
> +#define CLKMGR_CLKMGR_INTR_PERPLLRFSLIP_SET_MSK 0x00000200
> +#define CLKMGR_CLKMGR_INTR_MAINPLLRFSLIP_SET_MSK 0x00000100
> +#define CLKMGR_CLKMGR_INTR_PERPLLLOST_SET_MSK 0x00000008
> +#define CLKMGR_CLKMGR_INTR_MAINPLLLOST_SET_MSK 0x00000004
> +#define CLKMGR_CLKMGR_INTR_MAINPLLACHIEVED_SET_MSK 0x00000001
> +#define CLKMGR_CLKMGR_INTR_PERPLLACHIEVED_SET_MSK 0x00000002
> +#define CLKMGR_CLKMGR_CTL_BOOTMOD_SET_MSK 0x00000001
> +#define CLKMGR_CLKMGR_CTL_BOOTCLK_INTOSC_SET_MSK 0x00000300
> +#define CLKMGR_PERPLL_EN_RESET 0x00000f7f
> +#define CLKMGR_PERPLLGRP_EN_SDMMCCLK_MASK 0x00000020
> +#define CLKMGR_MAINPLL_VCO0_PSRC_MSK 0x00000003
> +#define CLKMGR_MAINPLL_VCO1_NUMER_MSK 0x00001fff
> +#define CLKMGR_MAINPLL_VCO1_DENOM_MSK 0x0000003f
> +#define CLKMGR_MAINPLL_CNTRCLK_MSK 0x000003ff
> +#define CLKMGR_PERPLL_VCO0_PSRC_MSK 0x00000003
> +#define CLKMGR_PERPLL_VCO1_NUMER_MSK 0x00001fff
> +#define CLKMGR_PERPLL_VCO1_DENOM_MSK 0x0000003f
> +#define CLKMGR_PERPLL_CNTRCLK_MSK 0x000003ff
> +#define CLKMGR_MAINPLL_MPUCLK_SRC_MSK 0x00000007
> +#define CLKMGR_MAINPLL_MPUCLK_CNT_MSK 0x000003ff
> +#define CLKMGR_MAINPLL_MPUCLK_SRC_MAIN 0
> +#define CLKMGR_MAINPLL_MPUCLK_SRC_PERI 1
> +#define CLKMGR_MAINPLL_MPUCLK_SRC_OSC1 2
> +#define CLKMGR_MAINPLL_MPUCLK_SRC_INTOSC 3
> +#define CLKMGR_MAINPLL_MPUCLK_SRC_FPGA 4
> +#define CLKMGR_MAINPLL_NOCDIV_MSK 0x00000003
> +#define CLKMGR_MAINPLL_NOCCLK_CNT_MSK 0x000003ff
> +#define CLKMGR_MAINPLL_NOCCLK_SRC_MSK 0x00000007
> +#define CLKMGR_MAINPLL_NOCCLK_SRC_MAIN 0
> +#define CLKMGR_MAINPLL_NOCCLK_SRC_PERI 1
> +#define CLKMGR_MAINPLL_NOCCLK_SRC_OSC1 2
> +#define CLKMGR_MAINPLL_NOCCLK_SRC_INTOSC 3
> +#define CLKMGR_MAINPLL_NOCCLK_SRC_FPGA 4
> +
> +#define CLKMGR_PERPLLGRP_SRC_MSK 0x00000007
> +#define CLKMGR_PERPLLGRP_SRC_MAIN 0
> +#define CLKMGR_PERPLLGRP_SRC_PERI 1
> +#define CLKMGR_PERPLLGRP_SRC_OSC1 2
> +#define CLKMGR_PERPLLGRP_SRC_INTOSC 3
> +#define CLKMGR_PERPLLGRP_SRC_FPGA 4
> +
> +/* bit shifting macro */
> +#define CLKMGR_MAINPLL_VCO0_PSRC_LSB 8
> +#define CLKMGR_PERPLL_VCO0_PSRC_LSB 8
> +#define CLKMGR_MAINPLL_VCO1_DENOM_LSB 16
> +#define CLKMGR_PERPLL_VCO1_DENOM_LSB 16
> +#define CLKMGR_MAINPLL_NOCCLK_PERICNT_LSB 16
> +#define CLKMGR_MAINPLL_NOCCLK_SRC_LSB 16
> +#define CLKMGR_MAINPLL_NOCDIV_L4MAINCLK_LSB 0
> +#define CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB 8
> +#define CLKMGR_MAINPLL_NOCDIV_L4SPCLK_LSB 16
> +#define CLKMGR_MAINPLL_NOCDIV_CSATCLK_LSB 24
> +#define CLKMGR_MAINPLL_NOCDIV_CSTRACECLK_LSB 26
> +#define CLKMGR_MAINPLL_NOCDIV_CSPDBGCLK_LSB 28
> +#define CLKMGR_MAINPLL_MPUCLK_SRC_LSB 16
> +#define CLKMGR_MAINPLL_MPUCLK_PERICNT_LSB 16
> +#define CLKMGR_MAINPLL_NOCCLK_SRC_LSB 16
> +#define CLKMGR_MAINPLL_CNTR7CLK_SRC_LSB 16
> +#define CLKMGR_MAINPLL_CNTR9CLK_SRC_LSB 16
> +#define CLKMGR_PERPLL_CNTR2CLK_SRC_LSB 16
> +#define CLKMGR_PERPLL_CNTR3CLK_SRC_LSB 16
> +#define CLKMGR_PERPLL_CNTR4CLK_SRC_LSB 16
> +#define CLKMGR_PERPLL_CNTR5CLK_SRC_LSB 16
> +#define CLKMGR_PERPLL_CNTR6CLK_SRC_LSB 16
> +#define CLKMGR_PERPLL_CNTR8CLK_SRC_LSB 16
> +#define CLKMGR_PERPLL_EMACCTL_EMAC0SEL_LSB 26
> +#define CLKMGR_PERPLL_EMACCTL_EMAC1SEL_LSB 27
> +#define CLKMGR_PERPLL_EMACCTL_EMAC2SEL_LSB 28
> +
> +/* PLL ramping work around */
> +#define CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ 900000000
> +#define CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ 300000000
> +#define CLKMGR_PLL_RAMP_MPUCLK_INCREMENT_HZ 100000000
> +#define CLKMGR_PLL_RAMP_NOCCLK_INCREMENT_HZ 33000000
> +
> +#endif /* CLOCK_MANAGER_ARRIA10 */
>
--
Best regards,
Marek Vasut
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