[U-Boot] [PATCH v7 07/16] arm: socfpga: Add clock driver for Arria 10
Ley Foon Tan
ley.foon.tan at intel.com
Tue Apr 25 18:44:39 UTC 2017
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 | 10 +
arch/arm/mach-socfpga/clock_manager_arria10.c | 1096 ++++++++++++++++++++
arch/arm/mach-socfpga/include/mach/clock_manager.h | 3 +
.../include/mach/clock_manager_arria10.h | 224 ++++
5 files changed, 1335 insertions(+), 1 deletion(-)
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 8051995..cb6ae03 100644
--- a/arch/arm/mach-socfpga/clock_manager.c
+++ b/arch/arm/mach-socfpga/clock_manager.c
@@ -19,7 +19,12 @@ 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
@@ -44,7 +49,12 @@ 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..482b854
--- /dev/null
+++ b/arch/arm/mach-socfpga/clock_manager_arria10.c
@@ -0,0 +1,1096 @@
+/*
+ * 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;
+
+ 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;
+ 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;
+ 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;
+ 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;
+ 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;
+}
+
+static u32 cm_calculate_numer(struct mainpll_cfg *main_cfg,
+ struct perpll_cfg *per_cfg,
+ u32 safe_hz, u32 clk_hz)
+{
+ u32 cnt;
+ u32 clk;
+ u32 shift;
+ u32 mask;
+ u32 denom;
+
+ if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_MAIN) {
+ cnt = main_cfg->mpuclk_cnt;
+ clk = main_cfg->mpuclk;
+ shift = 0;
+ mask = CLKMGR_MAINPLL_MPUCLK_CNT_MSK;
+ denom = main_cfg->vco1_denom;
+ } else if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_MAIN) {
+ cnt = main_cfg->nocclk_cnt;
+ clk = main_cfg->nocclk;
+ shift = 0;
+ mask = CLKMGR_MAINPLL_NOCCLK_CNT_MSK;
+ denom = main_cfg->vco1_denom;
+ } else if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_PERI) {
+ cnt = main_cfg->mpuclk_cnt;
+ clk = main_cfg->mpuclk;
+ shift = CLKMGR_MAINPLL_MPUCLK_PERICNT_LSB;
+ mask = CLKMGR_MAINPLL_MPUCLK_CNT_MSK;
+ denom = per_cfg->vco1_denom;
+ } else if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_PERI) {
+ cnt = main_cfg->nocclk_cnt;
+ clk = main_cfg->nocclk;
+ shift = CLKMGR_MAINPLL_NOCCLK_PERICNT_LSB;
+ mask = CLKMGR_MAINPLL_NOCCLK_CNT_MSK;
+ denom = per_cfg->vco1_denom;
+ } else {
+ return 0;
+ }
+
+ return (safe_hz / clk_hz) * (cnt + 1) * (((clk >> shift) & mask) + 1) *
+ (1 + denom) - 1;
+}
+
+/*
+ * 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;
+ }
+ } 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;
+ }
+ } else {
+ return 0;
+ }
+
+ return cm_calculate_numer(main_cfg, per_cfg, safe_hz, clk_hz);
+}
+
+/* ramping the main PLL to final value */
+static void cm_pll_ramp_main(struct mainpll_cfg *main_cfg,
+ struct perpll_cfg *per_cfg,
+ unsigned int pll_ramp_main_hz)
+{
+ unsigned int clk_hz = 0, clk_incr_hz = 0, clk_final_hz = 0;
+
+ /* find out the increment value */
+ if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_MAIN) {
+ clk_incr_hz = CLKMGR_PLL_RAMP_MPUCLK_INCREMENT_HZ;
+ clk_final_hz = cm_calc_handoff_mpu_clk_hz(main_cfg, per_cfg);
+ } else if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_MAIN) {
+ clk_incr_hz = CLKMGR_PLL_RAMP_NOCCLK_INCREMENT_HZ;
+ clk_final_hz = cm_calc_handoff_noc_clk_hz(main_cfg, per_cfg);
+ }
+
+ /* execute the ramping here */
+ for (clk_hz = pll_ramp_main_hz + clk_incr_hz;
+ clk_hz < clk_final_hz; clk_hz += clk_incr_hz) {
+ writel((main_cfg->vco1_denom <<
+ CLKMGR_MAINPLL_VCO1_DENOM_LSB) |
+ cm_calc_safe_pll_numer(0, main_cfg, per_cfg, clk_hz),
+ &clock_manager_base->main_pll.vco1);
+ mdelay(1);
+ cm_wait_for_lock(LOCKED_MASK);
+ }
+ writel((main_cfg->vco1_denom << CLKMGR_MAINPLL_VCO1_DENOM_LSB) |
+ main_cfg->vco1_numer, &clock_manager_base->main_pll.vco1);
+ mdelay(1);
+ cm_wait_for_lock(LOCKED_MASK);
+}
+
+/* ramping the periph PLL to final value */
+static void cm_pll_ramp_periph(struct mainpll_cfg *main_cfg,
+ struct perpll_cfg *per_cfg,
+ unsigned int pll_ramp_periph_hz)
+{
+ unsigned int clk_hz = 0, clk_incr_hz = 0, clk_final_hz = 0;
+
+ /* find out the increment value */
+ if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_PERI) {
+ clk_incr_hz = CLKMGR_PLL_RAMP_MPUCLK_INCREMENT_HZ;
+ clk_final_hz = cm_calc_handoff_mpu_clk_hz(main_cfg, per_cfg);
+ } else if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_PERI) {
+ clk_incr_hz = CLKMGR_PLL_RAMP_NOCCLK_INCREMENT_HZ;
+ clk_final_hz = cm_calc_handoff_noc_clk_hz(main_cfg, per_cfg);
+ }
+ /* execute the ramping here */
+ for (clk_hz = pll_ramp_periph_hz + clk_incr_hz;
+ clk_hz < clk_final_hz; clk_hz += clk_incr_hz) {
+ writel((per_cfg->vco1_denom << CLKMGR_PERPLL_VCO1_DENOM_LSB) |
+ cm_calc_safe_pll_numer(1, main_cfg, per_cfg, clk_hz),
+ &clock_manager_base->per_pll.vco1);
+ mdelay(1);
+ cm_wait_for_lock(LOCKED_MASK);
+ }
+ writel((per_cfg->vco1_denom << CLKMGR_PERPLL_VCO1_DENOM_LSB) |
+ per_cfg->vco1_numer, &clock_manager_base->per_pll.vco1);
+ mdelay(1);
+ cm_wait_for_lock(LOCKED_MASK);
+}
+
+/*
+ * Setup clocks while making no assumptions of the
+ * previous state of the clocks.
+ *
+ * Start by being paranoid and gate all sw managed clocks
+ *
+ * Put all plls in bypass
+ *
+ * Put all plls VCO registers back to reset value (bgpwr dwn).
+ *
+ * Put peripheral and main pll src to reset value to avoid glitch.
+ *
+ * Delay 5 us.
+ *
+ * Deassert bg pwr dn and set numerator and denominator
+ *
+ * Start 7 us timer.
+ *
+ * set internal dividers
+ *
+ * Wait for 7 us timer.
+ *
+ * Enable plls
+ *
+ * Set external dividers while plls are locking
+ *
+ * Wait for pll lock
+ *
+ * Assert/deassert outreset all.
+ *
+ * Take all pll's out of bypass
+ *
+ * Clear safe mode
+ *
+ * set source main and peripheral clocks
+ *
+ * Ungate clocks
+ */
+
+static int cm_full_cfg(struct mainpll_cfg *main_cfg, struct perpll_cfg *per_cfg)
+{
+ unsigned int pll_ramp_main_hz = 0, pll_ramp_periph_hz = 0,
+ ramp_required;
+
+ /* gate off all mainpll clock excpet HW managed clock */
+ writel(CLKMGR_MAINPLL_EN_S2FUSER0CLKEN_SET_MSK |
+ CLKMGR_MAINPLL_EN_HMCPLLREFCLKEN_SET_MSK,
+ &clock_manager_base->main_pll.enr);
+
+ /* now we can gate off the rest of the peripheral clocks */
+ writel(0, &clock_manager_base->per_pll.en);
+
+ /* Put all plls in external bypass */
+ writel(CLKMGR_MAINPLL_BYPASS_RESET,
+ &clock_manager_base->main_pll.bypasss);
+ writel(CLKMGR_PERPLL_BYPASS_RESET,
+ &clock_manager_base->per_pll.bypasss);
+
+ /*
+ * Put all plls VCO registers back to reset value.
+ * Some code might have messed with them. At same time set the
+ * desired clock source
+ */
+ writel(CLKMGR_MAINPLL_VCO0_RESET |
+ CLKMGR_MAINPLL_VCO0_REGEXTSEL_SET_MSK |
+ (main_cfg->vco0_psrc << CLKMGR_MAINPLL_VCO0_PSRC_LSB),
+ &clock_manager_base->main_pll.vco0);
+
+ writel(CLKMGR_PERPLL_VCO0_RESET |
+ CLKMGR_PERPLL_VCO0_REGEXTSEL_SET_MSK |
+ (per_cfg->vco0_psrc << CLKMGR_PERPLL_VCO0_PSRC_LSB),
+ &clock_manager_base->per_pll.vco0);
+
+ writel(CLKMGR_MAINPLL_VCO1_RESET, &clock_manager_base->main_pll.vco1);
+ writel(CLKMGR_PERPLL_VCO1_RESET, &clock_manager_base->per_pll.vco1);
+
+ /* clear the interrupt register status register */
+ writel(CLKMGR_CLKMGR_INTR_MAINPLLLOST_SET_MSK |
+ CLKMGR_CLKMGR_INTR_PERPLLLOST_SET_MSK |
+ CLKMGR_CLKMGR_INTR_MAINPLLRFSLIP_SET_MSK |
+ CLKMGR_CLKMGR_INTR_PERPLLRFSLIP_SET_MSK |
+ CLKMGR_CLKMGR_INTR_MAINPLLFBSLIP_SET_MSK |
+ CLKMGR_CLKMGR_INTR_PERPLLFBSLIP_SET_MSK |
+ CLKMGR_CLKMGR_INTR_MAINPLLACHIEVED_SET_MSK |
+ CLKMGR_CLKMGR_INTR_PERPLLACHIEVED_SET_MSK,
+ &clock_manager_base->intr);
+
+ /* Program VCO Numerator and Denominator for main PLL */
+ ramp_required = cm_is_pll_ramp_required(0, main_cfg, per_cfg);
+ if (ramp_required) {
+ /* set main PLL to safe starting threshold frequency */
+ if (ramp_required == 1)
+ pll_ramp_main_hz = CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ;
+ else if (ramp_required == 2)
+ pll_ramp_main_hz = CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ;
+
+ writel((main_cfg->vco1_denom << CLKMGR_MAINPLL_VCO1_DENOM_LSB) |
+ cm_calc_safe_pll_numer(0, main_cfg, per_cfg,
+ pll_ramp_main_hz),
+ &clock_manager_base->main_pll.vco1);
+ } else
+ writel((main_cfg->vco1_denom << CLKMGR_MAINPLL_VCO1_DENOM_LSB) |
+ main_cfg->vco1_numer,
+ &clock_manager_base->main_pll.vco1);
+
+ /* Program VCO Numerator and Denominator for periph PLL */
+ ramp_required = cm_is_pll_ramp_required(1, main_cfg, per_cfg);
+ if (ramp_required) {
+ /* set periph PLL to safe starting threshold frequency */
+ if (ramp_required == 1)
+ pll_ramp_periph_hz =
+ CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ;
+ else if (ramp_required == 2)
+ pll_ramp_periph_hz =
+ CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ;
+
+ writel((per_cfg->vco1_denom << CLKMGR_PERPLL_VCO1_DENOM_LSB) |
+ cm_calc_safe_pll_numer(1, main_cfg, per_cfg,
+ pll_ramp_periph_hz),
+ &clock_manager_base->per_pll.vco1);
+ } else
+ writel((per_cfg->vco1_denom << CLKMGR_PERPLL_VCO1_DENOM_LSB) |
+ per_cfg->vco1_numer,
+ &clock_manager_base->per_pll.vco1);
+
+ /* Wait for at least 5 us */
+ udelay(5);
+
+ /* Now deassert BGPWRDN and PWRDN */
+ clrbits_le32(&clock_manager_base->main_pll.vco0,
+ CLKMGR_MAINPLL_VCO0_BGPWRDN_SET_MSK |
+ CLKMGR_MAINPLL_VCO0_PWRDN_SET_MSK);
+ clrbits_le32(&clock_manager_base->per_pll.vco0,
+ CLKMGR_PERPLL_VCO0_BGPWRDN_SET_MSK |
+ CLKMGR_PERPLL_VCO0_PWRDN_SET_MSK);
+
+ /* Wait for at least 7 us */
+ udelay(7);
+
+ /* enable the VCO and disable the external regulator to PLL */
+ writel((readl(&clock_manager_base->main_pll.vco0) &
+ ~CLKMGR_MAINPLL_VCO0_REGEXTSEL_SET_MSK) |
+ CLKMGR_MAINPLL_VCO0_EN_SET_MSK,
+ &clock_manager_base->main_pll.vco0);
+ writel((readl(&clock_manager_base->per_pll.vco0) &
+ ~CLKMGR_PERPLL_VCO0_REGEXTSEL_SET_MSK) |
+ CLKMGR_PERPLL_VCO0_EN_SET_MSK,
+ &clock_manager_base->per_pll.vco0);
+
+ /* setup all the main PLL counter and clock source */
+ writel(main_cfg->nocclk,
+ SOCFPGA_CLKMGR_ADDRESS + CLKMGR_MAINPLL_NOC_CLK_OFFSET);
+ writel(main_cfg->mpuclk,
+ SOCFPGA_CLKMGR_ADDRESS + CLKMGR_ALTERAGRP_MPU_CLK_OFFSET);
+
+ /* main_emaca_clk divider */
+ writel(main_cfg->cntr2clk_cnt, &clock_manager_base->main_pll.cntr2clk);
+ /* main_emacb_clk divider */
+ writel(main_cfg->cntr3clk_cnt, &clock_manager_base->main_pll.cntr3clk);
+ /* main_emac_ptp_clk divider */
+ writel(main_cfg->cntr4clk_cnt, &clock_manager_base->main_pll.cntr4clk);
+ /* main_gpio_db_clk divider */
+ writel(main_cfg->cntr5clk_cnt, &clock_manager_base->main_pll.cntr5clk);
+ /* main_sdmmc_clk divider */
+ writel(main_cfg->cntr6clk_cnt, &clock_manager_base->main_pll.cntr6clk);
+ /* main_s2f_user0_clk divider */
+ writel(main_cfg->cntr7clk_cnt |
+ (main_cfg->cntr7clk_src << CLKMGR_MAINPLL_CNTR7CLK_SRC_LSB),
+ &clock_manager_base->main_pll.cntr7clk);
+ /* main_s2f_user1_clk divider */
+ writel(main_cfg->cntr8clk_cnt, &clock_manager_base->main_pll.cntr8clk);
+ /* main_hmc_pll_clk divider */
+ writel(main_cfg->cntr9clk_cnt |
+ (main_cfg->cntr9clk_src << CLKMGR_MAINPLL_CNTR9CLK_SRC_LSB),
+ &clock_manager_base->main_pll.cntr9clk);
+ /* main_periph_ref_clk divider */
+ writel(main_cfg->cntr15clk_cnt,
+ &clock_manager_base->main_pll.cntr15clk);
+
+ /* setup all the peripheral PLL counter and clock source */
+ /* peri_emaca_clk divider */
+ writel(per_cfg->cntr2clk_cnt |
+ (per_cfg->cntr2clk_src << CLKMGR_PERPLL_CNTR2CLK_SRC_LSB),
+ &clock_manager_base->per_pll.cntr2clk);
+ /* peri_emacb_clk divider */
+ writel(per_cfg->cntr3clk_cnt |
+ (per_cfg->cntr3clk_src << CLKMGR_PERPLL_CNTR3CLK_SRC_LSB),
+ &clock_manager_base->per_pll.cntr3clk);
+ /* peri_emac_ptp_clk divider */
+ writel(per_cfg->cntr4clk_cnt |
+ (per_cfg->cntr4clk_src << CLKMGR_PERPLL_CNTR4CLK_SRC_LSB),
+ &clock_manager_base->per_pll.cntr4clk);
+ /* peri_gpio_db_clk divider */
+ writel(per_cfg->cntr5clk_cnt |
+ (per_cfg->cntr5clk_src << CLKMGR_PERPLL_CNTR5CLK_SRC_LSB),
+ &clock_manager_base->per_pll.cntr5clk);
+ /* peri_sdmmc_clk divider */
+ writel(per_cfg->cntr6clk_cnt |
+ (per_cfg->cntr6clk_src << CLKMGR_PERPLL_CNTR6CLK_SRC_LSB),
+ &clock_manager_base->per_pll.cntr6clk);
+ /* peri_s2f_user0_clk divider */
+ writel(per_cfg->cntr7clk_cnt, &clock_manager_base->per_pll.cntr7clk);
+ /* peri_s2f_user1_clk divider */
+ writel(per_cfg->cntr8clk_cnt |
+ (per_cfg->cntr8clk_src << CLKMGR_PERPLL_CNTR8CLK_SRC_LSB),
+ &clock_manager_base->per_pll.cntr8clk);
+ /* peri_hmc_pll_clk divider */
+ writel(per_cfg->cntr9clk_cnt, &clock_manager_base->per_pll.cntr9clk);
+
+ /* setup all the external PLL counter */
+ /* mpu wrapper / external divider */
+ writel(main_cfg->mpuclk_cnt |
+ (main_cfg->mpuclk_src << CLKMGR_MAINPLL_MPUCLK_SRC_LSB),
+ &clock_manager_base->main_pll.mpuclk);
+ /* NOC wrapper / external divider */
+ writel(main_cfg->nocclk_cnt |
+ (main_cfg->nocclk_src << CLKMGR_MAINPLL_NOCCLK_SRC_LSB),
+ &clock_manager_base->main_pll.nocclk);
+ /* NOC subclock divider such as l4 */
+ writel(main_cfg->nocdiv_l4mainclk |
+ (main_cfg->nocdiv_l4mpclk <<
+ CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB) |
+ (main_cfg->nocdiv_l4spclk <<
+ CLKMGR_MAINPLL_NOCDIV_L4SPCLK_LSB) |
+ (main_cfg->nocdiv_csatclk <<
+ CLKMGR_MAINPLL_NOCDIV_CSATCLK_LSB) |
+ (main_cfg->nocdiv_cstraceclk <<
+ CLKMGR_MAINPLL_NOCDIV_CSTRACECLK_LSB) |
+ (main_cfg->nocdiv_cspdbclk <<
+ CLKMGR_MAINPLL_NOCDIV_CSPDBGCLK_LSB),
+ &clock_manager_base->main_pll.nocdiv);
+ /* gpio_db external divider */
+ writel(per_cfg->gpiodiv_gpiodbclk,
+ &clock_manager_base->per_pll.gpiodiv);
+
+ /* setup the EMAC clock mux select */
+ writel((per_cfg->emacctl_emac0sel <<
+ CLKMGR_PERPLL_EMACCTL_EMAC0SEL_LSB) |
+ (per_cfg->emacctl_emac1sel <<
+ CLKMGR_PERPLL_EMACCTL_EMAC1SEL_LSB) |
+ (per_cfg->emacctl_emac2sel <<
+ CLKMGR_PERPLL_EMACCTL_EMAC2SEL_LSB),
+ &clock_manager_base->per_pll.emacctl);
+
+ /* at this stage, check for PLL lock status */
+ cm_wait_for_lock(LOCKED_MASK);
+
+ /*
+ * after locking, but before taking out of bypass,
+ * assert/deassert outresetall
+ */
+ /* assert mainpll outresetall */
+ setbits_le32(&clock_manager_base->main_pll.vco0,
+ CLKMGR_MAINPLL_VCO0_OUTRSTALL_SET_MSK);
+ /* assert perpll outresetall */
+ setbits_le32(&clock_manager_base->per_pll.vco0,
+ CLKMGR_PERPLL_VCO0_OUTRSTALL_SET_MSK);
+ /* de-assert mainpll outresetall */
+ clrbits_le32(&clock_manager_base->main_pll.vco0,
+ CLKMGR_MAINPLL_VCO0_OUTRSTALL_SET_MSK);
+ /* de-assert perpll outresetall */
+ clrbits_le32(&clock_manager_base->per_pll.vco0,
+ CLKMGR_PERPLL_VCO0_OUTRSTALL_SET_MSK);
+
+ /* Take all PLLs out of bypass when boot mode is cleared. */
+ /* release mainpll from bypass */
+ writel(CLKMGR_MAINPLL_BYPASS_RESET,
+ &clock_manager_base->main_pll.bypassr);
+ /* wait till Clock Manager is not busy */
+ cm_wait_for_fsm();
+
+ /* release perpll from bypass */
+ writel(CLKMGR_PERPLL_BYPASS_RESET,
+ &clock_manager_base->per_pll.bypassr);
+ /* wait till Clock Manager is not busy */
+ cm_wait_for_fsm();
+
+ /* clear boot mode */
+ clrbits_le32(&clock_manager_base->ctrl,
+ CLKMGR_CLKMGR_CTL_BOOTMOD_SET_MSK);
+ /* wait till Clock Manager is not busy */
+ cm_wait_for_fsm();
+
+ /* At here, we need to ramp to final value if needed */
+ if (pll_ramp_main_hz != 0)
+ cm_pll_ramp_main(main_cfg, per_cfg, pll_ramp_main_hz);
+ if (pll_ramp_periph_hz != 0)
+ cm_pll_ramp_periph(main_cfg, per_cfg, pll_ramp_periph_hz);
+
+ /* Now ungate non-hw-managed clocks */
+ writel(CLKMGR_MAINPLL_EN_S2FUSER0CLKEN_SET_MSK |
+ CLKMGR_MAINPLL_EN_HMCPLLREFCLKEN_SET_MSK,
+ &clock_manager_base->main_pll.ens);
+ writel(CLKMGR_PERPLL_EN_RESET, &clock_manager_base->per_pll.ens);
+
+ /* Clear the loss lock and slip bits as they might set during
+ clock reconfiguration */
+ writel(CLKMGR_CLKMGR_INTR_MAINPLLLOST_SET_MSK |
+ CLKMGR_CLKMGR_INTR_PERPLLLOST_SET_MSK |
+ CLKMGR_CLKMGR_INTR_MAINPLLRFSLIP_SET_MSK |
+ CLKMGR_CLKMGR_INTR_PERPLLRFSLIP_SET_MSK |
+ CLKMGR_CLKMGR_INTR_MAINPLLFBSLIP_SET_MSK |
+ CLKMGR_CLKMGR_INTR_PERPLLFBSLIP_SET_MSK,
+ &clock_manager_base->intr);
+
+ return 0;
+}
+
+void cm_use_intosc(void)
+{
+ setbits_le32(&clock_manager_base->ctrl,
+ CLKMGR_CLKMGR_CTL_BOOTCLK_INTOSC_SET_MSK);
+}
+
+unsigned int cm_get_noc_clk_hz(void)
+{
+ unsigned int clk_src, divisor, nocclk, src_hz;
+
+ nocclk = readl(&clock_manager_base->main_pll.nocclk);
+ clk_src = (nocclk >> CLKMGR_MAINPLL_NOCCLK_SRC_LSB) &
+ CLKMGR_MAINPLL_NOCCLK_SRC_MSK;
+
+ divisor = 1 + (nocclk & CLKMGR_MAINPLL_NOCDIV_MSK);
+
+ if (clk_src == CLKMGR_PERPLLGRP_SRC_MAIN) {
+ src_hz = cm_get_main_vco_clk_hz();
+ src_hz /= 1 +
+ (readl(SOCFPGA_CLKMGR_ADDRESS + CLKMGR_MAINPLL_NOC_CLK_OFFSET) &
+ CLKMGR_MAINPLL_NOCCLK_CNT_MSK);
+ } else if (clk_src == CLKMGR_PERPLLGRP_SRC_PERI) {
+ src_hz = cm_get_per_vco_clk_hz();
+ src_hz /= 1 +
+ ((readl(SOCFPGA_CLKMGR_ADDRESS +
+ CLKMGR_MAINPLL_NOC_CLK_OFFSET) >>
+ CLKMGR_MAINPLL_NOCCLK_PERICNT_LSB) &
+ CLKMGR_MAINPLL_NOCCLK_CNT_MSK);
+ } else if (clk_src == CLKMGR_PERPLLGRP_SRC_OSC1) {
+ src_hz = eosc1_hz;
+ } else if (clk_src == CLKMGR_PERPLLGRP_SRC_INTOSC) {
+ src_hz = cb_intosc_hz;
+ } else if (clk_src == CLKMGR_PERPLLGRP_SRC_FPGA) {
+ src_hz = f2s_free_hz;
+ } else {
+ src_hz = 0;
+ }
+
+ return src_hz / divisor;
+}
+
+unsigned int cm_get_l4_noc_hz(unsigned int nocdivshift)
+{
+ unsigned int divisor2 = 1 <<
+ ((readl(&clock_manager_base->main_pll.nocdiv) >>
+ nocdivshift) & CLKMGR_MAINPLL_NOCDIV_MSK);
+
+ return cm_get_noc_clk_hz() / divisor2;
+}
+
+int cm_basic_init(const void *blob)
+{
+ struct mainpll_cfg main_cfg;
+ struct perpll_cfg per_cfg;
+ struct alteragrp_cfg altrgrp_cfg;
+ int rval;
+
+ /* initialize to zero for use case of optional node */
+ memset(&main_cfg, 0, sizeof(main_cfg));
+ memset(&per_cfg, 0, sizeof(per_cfg));
+ memset(&altrgrp_cfg, 0, sizeof(altrgrp_cfg));
+
+ rval = of_get_clk_cfg(blob, &main_cfg, &per_cfg, &altrgrp_cfg);
+ if (rval)
+ return rval;
+
+ rval = cm_full_cfg(&main_cfg, &per_cfg);
+
+ cm_l4_main_clk_hz =
+ cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MAINCLK_LSB);
+
+ cm_l4_mp_clk_hz = cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB);
+
+ cm_l4_sp_clk_hz = cm_get_l4_sp_clk_hz();
+
+ cm_l4_sys_free_clk_hz = cm_get_noc_clk_hz() / 4;
+
+ return rval;
+}
+
+unsigned long cm_get_mpu_clk_hz(void)
+{
+ u32 reg, clk_hz;
+ u32 clk_src, mainmpuclk_reg;
+
+ mainmpuclk_reg = readl(&clock_manager_base->main_pll.mpuclk);
+
+ clk_src = (mainmpuclk_reg >> CLKMGR_MAINPLL_MPUCLK_SRC_LSB) &
+ CLKMGR_MAINPLL_MPUCLK_SRC_MSK;
+
+ reg = readl(&clock_manager_base->altera.mpuclk);
+ /* Check MPU clock source: main, periph, osc1, intosc or f2s? */
+ switch (clk_src) {
+ case CLKMGR_MAINPLL_MPUCLK_SRC_MAIN:
+ clk_hz = cm_get_main_vco_clk_hz();
+ clk_hz /= (reg & CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1;
+ break;
+ case CLKMGR_MAINPLL_MPUCLK_SRC_PERI:
+ clk_hz = cm_get_per_vco_clk_hz();
+ clk_hz /= (((reg >> CLKMGR_MAINPLL_MPUCLK_PERICNT_LSB) &
+ CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1);
+ 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:
+ printf("cm_get_mpu_clk_hz invalid clk_src %d\n", clk_src);
+ return 0;
+ }
+
+ clk_hz /= (mainmpuclk_reg & CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1;
+
+ 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;
+
+ 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;
+
+ 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);
+}
diff --git a/arch/arm/mach-socfpga/include/mach/clock_manager.h b/arch/arm/mach-socfpga/include/mach/clock_manager.h
index b076497..4c6b1f8 100644
--- a/arch/arm/mach-socfpga/include/mach/clock_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/clock_manager.h
@@ -15,5 +15,8 @@ void cm_print_clock_quick_summary(void);
#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_ */
diff --git a/arch/arm/mach-socfpga/include/mach/clock_manager_arria10.h b/arch/arm/mach-socfpga/include/mach/clock_manager_arria10.h
new file mode 100644
index 0000000..1b55bb8
--- /dev/null
+++ b/arch/arm/mach-socfpga/include/mach/clock_manager_arria10.h
@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#ifndef CLOCK_MANAGER_ARRIA10
+#define CLOCK_MANAGER_ARRIA10
+
+#ifndef __ASSEMBLER__
+
+struct socfpga_clock_manager_main_pll {
+ u32 vco0;
+ u32 vco1;
+ u32 en;
+ u32 ens;
+ u32 enr;
+ u32 bypass;
+ u32 bypasss;
+ u32 bypassr;
+ u32 mpuclk;
+ u32 nocclk;
+ u32 cntr2clk;
+ u32 cntr3clk;
+ u32 cntr4clk;
+ u32 cntr5clk;
+ u32 cntr6clk;
+ u32 cntr7clk;
+ u32 cntr8clk;
+ u32 cntr9clk;
+ u32 pad_0x48_0x5b[5];
+ u32 cntr15clk;
+ u32 outrst;
+ u32 outrststat;
+ u32 nocdiv;
+ u32 pad_0x6c_0x80[5];
+};
+
+struct socfpga_clock_manager_per_pll {
+ u32 vco0;
+ u32 vco1;
+ u32 en;
+ u32 ens;
+ u32 enr;
+ u32 bypass;
+ u32 bypasss;
+ u32 bypassr;
+ u32 pad_0x20_0x27[2];
+ u32 cntr2clk;
+ u32 cntr3clk;
+ u32 cntr4clk;
+ u32 cntr5clk;
+ u32 cntr6clk;
+ u32 cntr7clk;
+ u32 cntr8clk;
+ u32 cntr9clk;
+ u32 pad_0x48_0x5f[6];
+ u32 outrst;
+ u32 outrststat;
+ u32 emacctl;
+ u32 gpiodiv;
+ u32 pad_0x70_0x80[4];
+};
+
+struct socfpga_clock_manager_altera {
+ u32 mpuclk;
+ u32 nocclk;
+ u32 mainmisc0;
+ u32 mainmisc1;
+ u32 perimisc0;
+ u32 perimisc1;
+};
+
+struct socfpga_clock_manager {
+ /* clkmgr */
+ u32 ctrl;
+ u32 intr;
+ u32 intrs;
+ u32 intrr;
+ u32 intren;
+ u32 intrens;
+ u32 intrenr;
+ u32 stat;
+ u32 testioctrl;
+ u32 _pad_0x24_0x40[7];
+ /* mainpllgrp */
+ struct socfpga_clock_manager_main_pll main_pll;
+ /* perpllgrp */
+ struct socfpga_clock_manager_per_pll per_pll;
+ struct socfpga_clock_manager_altera altera;
+};
+
+void cm_use_intosc(void);
+unsigned int cm_get_noc_clk_hz(void);
+unsigned int cm_get_l4_noc_hz(unsigned int nocdivshift);
+int cm_basic_init(const void *blob);
+
+unsigned int cm_get_l4_sp_clk_hz(void);
+unsigned int cm_get_main_vco_clk_hz(void);
+unsigned int cm_get_per_vco_clk_hz(void);
+unsigned long cm_get_mpu_clk_hz(void);
+
+unsigned int cm_get_qspi_controller_clk_hz(void);
+unsigned int cm_get_mmc_controller_clk_hz(void);
+unsigned int cm_get_spi_controller_clk_hz(void);
+
+#endif /* __ASSEMBLER__ */
+
+#define CLKMGR_ALTERAGRP_MPU_CLK_OFFSET 0x140
+#define CLKMGR_MAINPLL_NOC_CLK_OFFSET 0x144
+#define LOCKED_MASK (CLKMGR_CLKMGR_STAT_MAINPLLLOCKED_SET_MSK | \
+ CLKMGR_CLKMGR_STAT_PERPLLLOCKED_SET_MSK)
+
+/* value */
+#define CLKMGR_MAINPLL_BYPASS_RESET 0x0000003f
+#define CLKMGR_PERPLL_BYPASS_RESET 0x000000ff
+#define CLKMGR_MAINPLL_VCO0_RESET 0x00010053
+#define CLKMGR_MAINPLL_VCO1_RESET 0x00010001
+#define CLKMGR_PERPLL_VCO0_RESET 0x00010053
+#define CLKMGR_PERPLL_VCO1_RESET 0x00010001
+#define CLKMGR_MAINPLL_VCO0_PSRC_EOSC 0x0
+#define CLKMGR_MAINPLL_VCO0_PSRC_E_INTOSC 0x1
+#define CLKMGR_MAINPLL_VCO0_PSRC_F2S 0x2
+#define CLKMGR_PERPLL_VCO0_PSRC_EOSC 0x0
+#define CLKMGR_PERPLL_VCO0_PSRC_E_INTOSC 0x1
+#define CLKMGR_PERPLL_VCO0_PSRC_F2S 0x2
+#define CLKMGR_PERPLL_VCO0_PSRC_MAIN 0x3
+
+/* mask */
+#define CLKMGR_MAINPLL_EN_S2FUSER0CLKEN_SET_MSK BIT(6)
+#define CLKMGR_MAINPLL_EN_HMCPLLREFCLKEN_SET_MSK BIT(7)
+#define CLKMGR_CLKMGR_STAT_MAINPLLLOCKED_SET_MSK BIT(8)
+#define CLKMGR_CLKMGR_STAT_PERPLLLOCKED_SET_MSK BIT(9)
+#define CLKMGR_CLKMGR_STAT_BOOTCLKSRC_SET_MSK BIT(17)
+#define CLKMGR_MAINPLL_VCO0_BGPWRDN_SET_MSK BIT(0)
+#define CLKMGR_MAINPLL_VCO0_PWRDN_SET_MSK BIT(1)
+#define CLKMGR_MAINPLL_VCO0_EN_SET_MSK BIT(2)
+#define CLKMGR_MAINPLL_VCO0_OUTRSTALL_SET_MSK BIT(3)
+#define CLKMGR_MAINPLL_VCO0_REGEXTSEL_SET_MSK BIT(4)
+#define CLKMGR_PERPLL_VCO0_BGPWRDN_SET_MSK BIT(0)
+#define CLKMGR_PERPLL_VCO0_PWRDN_SET_MSK BIT(1)
+#define CLKMGR_PERPLL_VCO0_EN_SET_MSK BIT(2)
+#define CLKMGR_PERPLL_VCO0_OUTRSTALL_SET_MSK BIT(3)
+#define CLKMGR_PERPLL_VCO0_REGEXTSEL_SET_MSK BIT(4)
+#define CLKMGR_CLKMGR_INTR_MAINPLLACHIEVED_SET_MSK BIT(0)
+#define CLKMGR_CLKMGR_INTR_PERPLLACHIEVED_SET_MSK BIT(1)
+#define CLKMGR_CLKMGR_INTR_MAINPLLLOST_SET_MSK BIT(2)
+#define CLKMGR_CLKMGR_INTR_PERPLLLOST_SET_MSK BIT(3)
+#define CLKMGR_CLKMGR_INTR_MAINPLLRFSLIP_SET_MSK BIT(8)
+#define CLKMGR_CLKMGR_INTR_PERPLLRFSLIP_SET_MSK BIT(9)
+#define CLKMGR_CLKMGR_INTR_MAINPLLFBSLIP_SET_MSK BIT(10)
+#define CLKMGR_CLKMGR_INTR_PERPLLFBSLIP_SET_MSK BIT(11)
+#define CLKMGR_CLKMGR_CTL_BOOTMOD_SET_MSK BIT(0)
+#define CLKMGR_CLKMGR_CTL_BOOTCLK_INTOSC_SET_MSK 0x00000300
+#define CLKMGR_PERPLL_EN_RESET 0x00000f7f
+#define CLKMGR_PERPLLGRP_EN_SDMMCCLK_MASK BIT(5)
+#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
+
+#define CLKMGR_STAT_BUSY BIT(0)
+
+#endif /* CLOCK_MANAGER_ARRIA10 */
--
1.8.2.3
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