clk: agilex: Add clock driver for Agilex

Add clock manager driver for Agilex. Provides clock initialization
and get_rate functions.

agilex-clock.h is from Linux commit ID cd2e1ad12247.

Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
This commit is contained in:
Ley Foon Tan 2019-11-27 15:55:22 +08:00 committed by Marek Vasut
parent 20322cea64
commit c168fc71a3
5 changed files with 893 additions and 0 deletions

View File

@ -245,7 +245,12 @@ void socfpga_get_managers_addr(void)
if (ret)
hang();
#ifdef CONFIG_TARGET_SOCFPGA_AGILEX
ret = socfpga_get_base_addr("intel,agilex-clkmgr",
&socfpga_clkmgr_base);
#else
ret = socfpga_get_base_addr("altr,clk-mgr", &socfpga_clkmgr_base);
#endif
if (ret)
hang();
}

View File

@ -3,4 +3,5 @@
# Copyright (C) 2018 Marek Vasut <marex@denx.de>
#
obj-$(CONFIG_TARGET_SOCFPGA_AGILEX) += clk-agilex.o
obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += clk-arria10.o

View File

@ -0,0 +1,579 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2019 Intel Corporation <www.intel.com>
*/
#include <common.h>
#include <asm/io.h>
#include <clk-uclass.h>
#include <dm.h>
#include <dm/lists.h>
#include <dm/util.h>
#include <dt-bindings/clock/agilex-clock.h>
#include <asm/arch/clock_manager.h>
DECLARE_GLOBAL_DATA_PTR;
struct socfpga_clk_platdata {
void __iomem *regs;
};
/*
* function to write the bypass register which requires a poll of the
* busy bit
*/
static void clk_write_bypass_mainpll(struct socfpga_clk_platdata *plat, u32 val)
{
CM_REG_WRITEL(plat, val, CLKMGR_MAINPLL_BYPASS);
cm_wait_for_fsm();
}
static void clk_write_bypass_perpll(struct socfpga_clk_platdata *plat, u32 val)
{
CM_REG_WRITEL(plat, val, CLKMGR_PERPLL_BYPASS);
cm_wait_for_fsm();
}
/* function to write the ctrl register which requires a poll of the busy bit */
static void clk_write_ctrl(struct socfpga_clk_platdata *plat, u32 val)
{
CM_REG_WRITEL(plat, val, CLKMGR_CTRL);
cm_wait_for_fsm();
}
#define MEMBUS_MAINPLL 0
#define MEMBUS_PERPLL 1
#define MEMBUS_TIMEOUT 1000
#define MEMBUS_ADDR_CLKSLICE 0x27
#define MEMBUS_CLKSLICE_SYNC_MODE_EN 0x80
static int membus_wait_for_req(struct socfpga_clk_platdata *plat, u32 pll,
int timeout)
{
int cnt = 0;
u32 req_status;
if (pll == MEMBUS_MAINPLL)
req_status = CM_REG_READL(plat, CLKMGR_MAINPLL_MEM);
else
req_status = CM_REG_READL(plat, CLKMGR_PERPLL_MEM);
while ((cnt < timeout) && (req_status & CLKMGR_MEM_REQ_SET_MSK)) {
if (pll == MEMBUS_MAINPLL)
req_status = CM_REG_READL(plat, CLKMGR_MAINPLL_MEM);
else
req_status = CM_REG_READL(plat, CLKMGR_PERPLL_MEM);
cnt++;
}
if (cnt >= timeout)
return -ETIMEDOUT;
return 0;
}
static int membus_write_pll(struct socfpga_clk_platdata *plat, u32 pll,
u32 addr_offset, u32 wdat, int timeout)
{
u32 addr;
u32 val;
addr = ((addr_offset | CLKMGR_MEM_ADDR_START) & CLKMGR_MEM_ADDR_MASK);
val = (CLKMGR_MEM_REQ_SET_MSK | CLKMGR_MEM_WR_SET_MSK |
(wdat << CLKMGR_MEM_WDAT_LSB_OFFSET) | addr);
if (pll == MEMBUS_MAINPLL)
CM_REG_WRITEL(plat, val, CLKMGR_MAINPLL_MEM);
else
CM_REG_WRITEL(plat, val, CLKMGR_PERPLL_MEM);
debug("MEMBUS: Write 0x%08x to addr = 0x%08x\n", wdat, addr);
return membus_wait_for_req(plat, pll, timeout);
}
static int membus_read_pll(struct socfpga_clk_platdata *plat, u32 pll,
u32 addr_offset, u32 *rdata, int timeout)
{
u32 addr;
u32 val;
addr = ((addr_offset | CLKMGR_MEM_ADDR_START) & CLKMGR_MEM_ADDR_MASK);
val = ((CLKMGR_MEM_REQ_SET_MSK & ~CLKMGR_MEM_WR_SET_MSK) | addr);
if (pll == MEMBUS_MAINPLL)
CM_REG_WRITEL(plat, val, CLKMGR_MAINPLL_MEM);
else
CM_REG_WRITEL(plat, val, CLKMGR_PERPLL_MEM);
*rdata = 0;
if (membus_wait_for_req(plat, pll, timeout))
return -ETIMEDOUT;
if (pll == MEMBUS_MAINPLL)
*rdata = CM_REG_READL(plat, CLKMGR_MAINPLL_MEMSTAT);
else
*rdata = CM_REG_READL(plat, CLKMGR_PERPLL_MEMSTAT);
debug("MEMBUS: Read 0x%08x from addr = 0x%08x\n", *rdata, addr);
return 0;
}
static u32 calc_vocalib_pll(u32 pllm, u32 pllglob)
{
u32 mdiv, refclkdiv, arefclkdiv, drefclkdiv, mscnt, hscnt, vcocalib;
mdiv = pllm & CLKMGR_PLLM_MDIV_MASK;
arefclkdiv = (pllglob & CLKMGR_PLLGLOB_AREFCLKDIV_MASK) >>
CLKMGR_PLLGLOB_AREFCLKDIV_OFFSET;
drefclkdiv = (pllglob & CLKMGR_PLLGLOB_DREFCLKDIV_MASK) >>
CLKMGR_PLLGLOB_DREFCLKDIV_OFFSET;
refclkdiv = (pllglob & CLKMGR_PLLGLOB_REFCLKDIV_MASK) >>
CLKMGR_PLLGLOB_REFCLKDIV_OFFSET;
mscnt = CLKMGR_VCOCALIB_MSCNT_CONST / (mdiv * BIT(drefclkdiv));
if (!mscnt)
mscnt = 1;
hscnt = (mdiv * mscnt * BIT(drefclkdiv) / refclkdiv) -
CLKMGR_VCOCALIB_HSCNT_CONST;
vcocalib = (hscnt & CLKMGR_VCOCALIB_HSCNT_MASK) |
((mscnt << CLKMGR_VCOCALIB_MSCNT_OFFSET) &
CLKMGR_VCOCALIB_MSCNT_MASK);
/* Dump all the pll calibration settings for debug purposes */
debug("mdiv : %d\n", mdiv);
debug("arefclkdiv : %d\n", arefclkdiv);
debug("drefclkdiv : %d\n", drefclkdiv);
debug("refclkdiv : %d\n", refclkdiv);
debug("mscnt : %d\n", mscnt);
debug("hscnt : %d\n", hscnt);
debug("vcocalib : 0x%08x\n", vcocalib);
return vcocalib;
}
/*
* Setup clocks while making no assumptions about previous state of the clocks.
*/
static void clk_basic_init(struct udevice *dev,
const struct cm_config * const cfg)
{
struct socfpga_clk_platdata *plat = dev_get_platdata(dev);
u32 vcocalib;
u32 rdata;
if (!cfg)
return;
/* Put both PLLs in bypass */
clk_write_bypass_mainpll(plat, CLKMGR_BYPASS_MAINPLL_ALL);
clk_write_bypass_perpll(plat, CLKMGR_BYPASS_PERPLL_ALL);
/* Put both PLLs in Reset and Power Down */
CM_REG_CLRBITS(plat, CLKMGR_MAINPLL_PLLGLOB,
CLKMGR_PLLGLOB_PD_MASK | CLKMGR_PLLGLOB_RST_MASK);
CM_REG_CLRBITS(plat, CLKMGR_PERPLL_PLLGLOB,
CLKMGR_PLLGLOB_PD_MASK | CLKMGR_PLLGLOB_RST_MASK);
/* setup main PLL dividers where calculate the vcocalib value */
vcocalib = calc_vocalib_pll(cfg->main_pll_pllm, cfg->main_pll_pllglob);
CM_REG_WRITEL(plat, cfg->main_pll_pllglob & ~CLKMGR_PLLGLOB_RST_MASK,
CLKMGR_MAINPLL_PLLGLOB);
CM_REG_WRITEL(plat, cfg->main_pll_fdbck, CLKMGR_MAINPLL_FDBCK);
CM_REG_WRITEL(plat, vcocalib, CLKMGR_MAINPLL_VCOCALIB);
CM_REG_WRITEL(plat, cfg->main_pll_pllc0, CLKMGR_MAINPLL_PLLC0);
CM_REG_WRITEL(plat, cfg->main_pll_pllc1, CLKMGR_MAINPLL_PLLC1);
CM_REG_WRITEL(plat, cfg->main_pll_pllc2, CLKMGR_MAINPLL_PLLC2);
CM_REG_WRITEL(plat, cfg->main_pll_pllc3, CLKMGR_MAINPLL_PLLC3);
CM_REG_WRITEL(plat, cfg->main_pll_pllm, CLKMGR_MAINPLL_PLLM);
CM_REG_WRITEL(plat, cfg->main_pll_mpuclk, CLKMGR_MAINPLL_MPUCLK);
CM_REG_WRITEL(plat, cfg->main_pll_nocclk, CLKMGR_MAINPLL_NOCCLK);
CM_REG_WRITEL(plat, cfg->main_pll_nocdiv, CLKMGR_MAINPLL_NOCDIV);
/* setup peripheral PLL dividers where calculate the vcocalib value */
vcocalib = calc_vocalib_pll(cfg->per_pll_pllm, cfg->per_pll_pllglob);
CM_REG_WRITEL(plat, cfg->per_pll_pllglob & ~CLKMGR_PLLGLOB_RST_MASK,
CLKMGR_PERPLL_PLLGLOB);
CM_REG_WRITEL(plat, cfg->per_pll_fdbck, CLKMGR_PERPLL_FDBCK);
CM_REG_WRITEL(plat, vcocalib, CLKMGR_PERPLL_VCOCALIB);
CM_REG_WRITEL(plat, cfg->per_pll_pllc0, CLKMGR_PERPLL_PLLC0);
CM_REG_WRITEL(plat, cfg->per_pll_pllc1, CLKMGR_PERPLL_PLLC1);
CM_REG_WRITEL(plat, cfg->per_pll_pllc2, CLKMGR_PERPLL_PLLC2);
CM_REG_WRITEL(plat, cfg->per_pll_pllc3, CLKMGR_PERPLL_PLLC3);
CM_REG_WRITEL(plat, cfg->per_pll_pllm, CLKMGR_PERPLL_PLLM);
CM_REG_WRITEL(plat, cfg->per_pll_emacctl, CLKMGR_PERPLL_EMACCTL);
CM_REG_WRITEL(plat, cfg->per_pll_gpiodiv, CLKMGR_PERPLL_GPIODIV);
/* Take both PLL out of reset and power up */
CM_REG_SETBITS(plat, CLKMGR_MAINPLL_PLLGLOB,
CLKMGR_PLLGLOB_PD_MASK | CLKMGR_PLLGLOB_RST_MASK);
CM_REG_SETBITS(plat, CLKMGR_PERPLL_PLLGLOB,
CLKMGR_PLLGLOB_PD_MASK | CLKMGR_PLLGLOB_RST_MASK);
/* Membus programming to set mainpll and perripll to
* source synchronous mode
*/
membus_read_pll(plat, MEMBUS_MAINPLL, MEMBUS_ADDR_CLKSLICE, &rdata,
MEMBUS_TIMEOUT);
membus_write_pll(plat, MEMBUS_MAINPLL, MEMBUS_ADDR_CLKSLICE,
(rdata | MEMBUS_CLKSLICE_SYNC_MODE_EN),
MEMBUS_TIMEOUT);
membus_read_pll(plat, MEMBUS_PERPLL, MEMBUS_ADDR_CLKSLICE, &rdata,
MEMBUS_TIMEOUT);
membus_write_pll(plat, MEMBUS_PERPLL, MEMBUS_ADDR_CLKSLICE,
(rdata | MEMBUS_CLKSLICE_SYNC_MODE_EN),
MEMBUS_TIMEOUT);
cm_wait_for_lock(CLKMGR_STAT_ALLPLL_LOCKED_MASK);
/* Configure ping pong counters in altera group */
CM_REG_WRITEL(plat, cfg->alt_emacactr, CLKMGR_ALTR_EMACACTR);
CM_REG_WRITEL(plat, cfg->alt_emacbctr, CLKMGR_ALTR_EMACBCTR);
CM_REG_WRITEL(plat, cfg->alt_emacptpctr, CLKMGR_ALTR_EMACPTPCTR);
CM_REG_WRITEL(plat, cfg->alt_gpiodbctr, CLKMGR_ALTR_GPIODBCTR);
CM_REG_WRITEL(plat, cfg->alt_sdmmcctr, CLKMGR_ALTR_SDMMCCTR);
CM_REG_WRITEL(plat, cfg->alt_s2fuser0ctr, CLKMGR_ALTR_S2FUSER0CTR);
CM_REG_WRITEL(plat, cfg->alt_s2fuser1ctr, CLKMGR_ALTR_S2FUSER1CTR);
CM_REG_WRITEL(plat, cfg->alt_psirefctr, CLKMGR_ALTR_PSIREFCTR);
CM_REG_WRITEL(plat, CLKMGR_LOSTLOCK_SET_MASK, CLKMGR_MAINPLL_LOSTLOCK);
CM_REG_WRITEL(plat, CLKMGR_LOSTLOCK_SET_MASK, CLKMGR_PERPLL_LOSTLOCK);
CM_REG_WRITEL(plat, CM_REG_READL(plat, CLKMGR_MAINPLL_PLLGLOB) |
CLKMGR_PLLGLOB_CLR_LOSTLOCK_BYPASS_MASK,
CLKMGR_MAINPLL_PLLGLOB);
CM_REG_WRITEL(plat, CM_REG_READL(plat, CLKMGR_PERPLL_PLLGLOB) |
CLKMGR_PLLGLOB_CLR_LOSTLOCK_BYPASS_MASK,
CLKMGR_PERPLL_PLLGLOB);
/* Take all PLLs out of bypass */
clk_write_bypass_mainpll(plat, 0);
clk_write_bypass_perpll(plat, 0);
/* Clear the loss of lock bits (write 1 to clear) */
CM_REG_CLRBITS(plat, CLKMGR_INTRCLR,
CLKMGR_INTER_PERPLLLOST_MASK |
CLKMGR_INTER_MAINPLLLOST_MASK);
/* Take all ping pong counters out of reset */
CM_REG_CLRBITS(plat, CLKMGR_ALTR_EXTCNTRST,
CLKMGR_ALT_EXTCNTRST_ALLCNTRST);
/* Out of boot mode */
clk_write_ctrl(plat,
CM_REG_READL(plat, CLKMGR_CTRL) & ~CLKMGR_CTRL_BOOTMODE);
}
static u64 clk_get_vco_clk_hz(struct socfpga_clk_platdata *plat,
u32 pllglob_reg, u32 pllm_reg)
{
u64 fref, arefdiv, mdiv, reg, vco;
reg = CM_REG_READL(plat, pllglob_reg);
fref = (reg & CLKMGR_PLLGLOB_VCO_PSRC_MASK) >>
CLKMGR_PLLGLOB_VCO_PSRC_OFFSET;
switch (fref) {
case CLKMGR_VCO_PSRC_EOSC1:
fref = cm_get_osc_clk_hz();
break;
case CLKMGR_VCO_PSRC_INTOSC:
fref = cm_get_intosc_clk_hz();
break;
case CLKMGR_VCO_PSRC_F2S:
fref = cm_get_fpga_clk_hz();
break;
}
arefdiv = (reg & CLKMGR_PLLGLOB_AREFCLKDIV_MASK) >>
CLKMGR_PLLGLOB_AREFCLKDIV_OFFSET;
mdiv = CM_REG_READL(plat, pllm_reg) & CLKMGR_PLLM_MDIV_MASK;
vco = fref / arefdiv;
vco = vco * mdiv;
return vco;
}
static u64 clk_get_main_vco_clk_hz(struct socfpga_clk_platdata *plat)
{
return clk_get_vco_clk_hz(plat, CLKMGR_MAINPLL_PLLGLOB,
CLKMGR_MAINPLL_PLLM);
}
static u64 clk_get_per_vco_clk_hz(struct socfpga_clk_platdata *plat)
{
return clk_get_vco_clk_hz(plat, CLKMGR_PERPLL_PLLGLOB,
CLKMGR_PERPLL_PLLM);
}
static u32 clk_get_5_1_clk_src(struct socfpga_clk_platdata *plat, u64 reg)
{
u32 clksrc = CM_REG_READL(plat, reg);
return (clksrc & CLKMGR_CLKSRC_MASK) >> CLKMGR_CLKSRC_OFFSET;
}
static u64 clk_get_clksrc_hz(struct socfpga_clk_platdata *plat, u32 clksrc_reg,
u32 main_reg, u32 per_reg)
{
u64 clock;
u32 clklsrc = clk_get_5_1_clk_src(plat, clksrc_reg);
switch (clklsrc) {
case CLKMGR_CLKSRC_MAIN:
clock = clk_get_main_vco_clk_hz(plat);
clock /= (CM_REG_READL(plat, main_reg) &
CLKMGR_CLKCNT_MSK);
break;
case CLKMGR_CLKSRC_PER:
clock = clk_get_per_vco_clk_hz(plat);
clock /= (CM_REG_READL(plat, per_reg) &
CLKMGR_CLKCNT_MSK);
break;
case CLKMGR_CLKSRC_OSC1:
clock = cm_get_osc_clk_hz();
break;
case CLKMGR_CLKSRC_INTOSC:
clock = cm_get_intosc_clk_hz();
break;
case CLKMGR_CLKSRC_FPGA:
clock = cm_get_fpga_clk_hz();
break;
default:
return 0;
}
return clock;
}
static u64 clk_get_mpu_clk_hz(struct socfpga_clk_platdata *plat)
{
u64 clock = clk_get_clksrc_hz(plat, CLKMGR_MAINPLL_MPUCLK,
CLKMGR_MAINPLL_PLLC0,
CLKMGR_PERPLL_PLLC0);
clock /= 1 + (CM_REG_READL(plat, CLKMGR_MAINPLL_MPUCLK) &
CLKMGR_CLKCNT_MSK);
return clock;
}
static u32 clk_get_l3_main_clk_hz(struct socfpga_clk_platdata *plat)
{
return clk_get_clksrc_hz(plat, CLKMGR_MAINPLL_NOCCLK,
CLKMGR_MAINPLL_PLLC1,
CLKMGR_PERPLL_PLLC1);
}
static u32 clk_get_l4_main_clk_hz(struct socfpga_clk_platdata *plat)
{
u64 clock = clk_get_l3_main_clk_hz(plat);
clock /= BIT((CM_REG_READL(plat, CLKMGR_MAINPLL_NOCDIV) >>
CLKMGR_NOCDIV_L4MAIN_OFFSET) &
CLKMGR_NOCDIV_DIVIDER_MASK);
return clock;
}
static u32 clk_get_sdmmc_clk_hz(struct socfpga_clk_platdata *plat)
{
u64 clock = clk_get_clksrc_hz(plat, CLKMGR_ALTR_SDMMCCTR,
CLKMGR_MAINPLL_PLLC3,
CLKMGR_PERPLL_PLLC3);
clock /= 1 + (CM_REG_READL(plat, CLKMGR_ALTR_SDMMCCTR) &
CLKMGR_CLKCNT_MSK);
return clock / 4;
}
static u32 clk_get_l4_sp_clk_hz(struct socfpga_clk_platdata *plat)
{
u64 clock = clk_get_l3_main_clk_hz(plat);
clock /= BIT((CM_REG_READL(plat, CLKMGR_MAINPLL_NOCDIV) >>
CLKMGR_NOCDIV_L4SPCLK_OFFSET) &
CLKMGR_NOCDIV_DIVIDER_MASK);
return clock;
}
static u32 clk_get_l4_mp_clk_hz(struct socfpga_clk_platdata *plat)
{
u64 clock = clk_get_l3_main_clk_hz(plat);
clock /= BIT((CM_REG_READL(plat, CLKMGR_MAINPLL_NOCDIV) >>
CLKMGR_NOCDIV_L4MPCLK_OFFSET) &
CLKMGR_NOCDIV_DIVIDER_MASK);
return clock;
}
static u32 clk_get_l4_sys_free_clk_hz(struct socfpga_clk_platdata *plat)
{
if (CM_REG_READL(plat, CLKMGR_STAT) & CLKMGR_STAT_BOOTMODE)
return clk_get_l3_main_clk_hz(plat) / 2;
return clk_get_l3_main_clk_hz(plat) / 4;
}
static u32 clk_get_emac_clk_hz(struct socfpga_clk_platdata *plat, u32 emac_id)
{
bool emacsel_a;
u32 ctl;
u32 ctr_reg;
u32 clock;
u32 div;
u32 reg;
/* Get EMAC clock source */
ctl = CM_REG_READL(plat, CLKMGR_PERPLL_EMACCTL);
if (emac_id == AGILEX_EMAC0_CLK)
ctl = (ctl >> CLKMGR_PERPLLGRP_EMACCTL_EMAC0SELB_OFFSET) &
CLKMGR_PERPLLGRP_EMACCTL_EMAC0SELB_MASK;
else if (emac_id == AGILEX_EMAC1_CLK)
ctl = (ctl >> CLKMGR_PERPLLGRP_EMACCTL_EMAC1SELB_OFFSET) &
CLKMGR_PERPLLGRP_EMACCTL_EMAC1SELB_MASK;
else if (emac_id == AGILEX_EMAC2_CLK)
ctl = (ctl >> CLKMGR_PERPLLGRP_EMACCTL_EMAC2SELB_OFFSET) &
CLKMGR_PERPLLGRP_EMACCTL_EMAC2SELB_MASK;
else
return 0;
if (ctl) {
/* EMAC B source */
emacsel_a = false;
ctr_reg = CLKMGR_ALTR_EMACBCTR;
} else {
/* EMAC A source */
emacsel_a = true;
ctr_reg = CLKMGR_ALTR_EMACACTR;
}
reg = CM_REG_READL(plat, ctr_reg);
clock = (reg & CLKMGR_ALT_EMACCTR_SRC_MASK)
>> CLKMGR_ALT_EMACCTR_SRC_OFFSET;
div = (reg & CLKMGR_ALT_EMACCTR_CNT_MASK)
>> CLKMGR_ALT_EMACCTR_CNT_OFFSET;
switch (clock) {
case CLKMGR_CLKSRC_MAIN:
clock = clk_get_main_vco_clk_hz(plat);
if (emacsel_a) {
clock /= (CM_REG_READL(plat, CLKMGR_MAINPLL_PLLC2) &
CLKMGR_CLKCNT_MSK);
} else {
clock /= (CM_REG_READL(plat, CLKMGR_MAINPLL_PLLC3) &
CLKMGR_CLKCNT_MSK);
}
break;
case CLKMGR_CLKSRC_PER:
clock = clk_get_per_vco_clk_hz(plat);
if (emacsel_a) {
clock /= (CM_REG_READL(plat, CLKMGR_PERPLL_PLLC2) &
CLKMGR_CLKCNT_MSK);
} else {
clock /= (CM_REG_READL(plat, CLKMGR_PERPLL_PLLC3) &
CLKMGR_CLKCNT_MSK);
}
break;
case CLKMGR_CLKSRC_OSC1:
clock = cm_get_osc_clk_hz();
break;
case CLKMGR_CLKSRC_INTOSC:
clock = cm_get_intosc_clk_hz();
break;
case CLKMGR_CLKSRC_FPGA:
clock = cm_get_fpga_clk_hz();
break;
}
clock /= 1 + div;
return clock;
}
static ulong socfpga_clk_get_rate(struct clk *clk)
{
struct socfpga_clk_platdata *plat = dev_get_platdata(clk->dev);
switch (clk->id) {
case AGILEX_MPU_CLK:
return clk_get_mpu_clk_hz(plat);
case AGILEX_L4_MAIN_CLK:
return clk_get_l4_main_clk_hz(plat);
case AGILEX_L4_SYS_FREE_CLK:
return clk_get_l4_sys_free_clk_hz(plat);
case AGILEX_L4_MP_CLK:
return clk_get_l4_mp_clk_hz(plat);
case AGILEX_L4_SP_CLK:
return clk_get_l4_sp_clk_hz(plat);
case AGILEX_SDMMC_CLK:
return clk_get_sdmmc_clk_hz(plat);
case AGILEX_EMAC0_CLK:
case AGILEX_EMAC1_CLK:
case AGILEX_EMAC2_CLK:
return clk_get_emac_clk_hz(plat, clk->id);
case AGILEX_USB_CLK:
return clk_get_l4_mp_clk_hz(plat);
default:
return -ENXIO;
}
}
static int socfpga_clk_probe(struct udevice *dev)
{
const struct cm_config *cm_default_cfg = cm_get_default_config();
clk_basic_init(dev, cm_default_cfg);
return 0;
}
static int socfpga_clk_ofdata_to_platdata(struct udevice *dev)
{
struct socfpga_clk_platdata *plat = dev_get_platdata(dev);
fdt_addr_t addr;
addr = devfdt_get_addr(dev);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
plat->regs = (void __iomem *)addr;
return 0;
}
static struct clk_ops socfpga_clk_ops = {
.get_rate = socfpga_clk_get_rate,
};
static const struct udevice_id socfpga_clk_match[] = {
{ .compatible = "intel,agilex-clkmgr" },
{}
};
U_BOOT_DRIVER(socfpga_agilex_clk) = {
.name = "clk-agilex",
.id = UCLASS_CLK,
.of_match = socfpga_clk_match,
.ops = &socfpga_clk_ops,
.probe = socfpga_clk_probe,
.ofdata_to_platdata = socfpga_clk_ofdata_to_platdata,
.platdata_auto_alloc_size = sizeof(struct socfpga_clk_platdata),
};

View File

@ -0,0 +1,237 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019 Intel Corporation <www.intel.com>
*/
#ifndef _CLK_AGILEX_
#define _CLK_AGILEX_
#define CM_REG_READL(plat, reg) \
readl((plat)->regs + (reg))
#define CM_REG_WRITEL(plat, data, reg) \
writel(data, (plat)->regs + (reg))
#define CM_REG_CLRBITS(plat, reg, clear) \
clrbits_le32((plat)->regs + (reg), (clear))
#define CM_REG_SETBITS(plat, reg, set) \
setbits_le32((plat)->regs + (reg), (set))
struct cm_config {
/* main group */
u32 main_pll_mpuclk;
u32 main_pll_nocclk;
u32 main_pll_nocdiv;
u32 main_pll_pllglob;
u32 main_pll_fdbck;
u32 main_pll_pllc0;
u32 main_pll_pllc1;
u32 main_pll_pllc2;
u32 main_pll_pllc3;
u32 main_pll_pllm;
/* peripheral group */
u32 per_pll_emacctl;
u32 per_pll_gpiodiv;
u32 per_pll_pllglob;
u32 per_pll_fdbck;
u32 per_pll_pllc0;
u32 per_pll_pllc1;
u32 per_pll_pllc2;
u32 per_pll_pllc3;
u32 per_pll_pllm;
/* altera group */
u32 alt_emacactr;
u32 alt_emacbctr;
u32 alt_emacptpctr;
u32 alt_gpiodbctr;
u32 alt_sdmmcctr;
u32 alt_s2fuser0ctr;
u32 alt_s2fuser1ctr;
u32 alt_psirefctr;
/* incoming clock */
u32 hps_osc_clk_hz;
u32 fpga_clk_hz;
u32 spare[3];
};
/* Clock Manager registers */
#define CLKMGR_CTRL 0
#define CLKMGR_STAT 4
#define CLKMGR_TESTIOCTRL 8
#define CLKMGR_INTRGEN 0x0c
#define CLKMGR_INTRMSK 0x10
#define CLKMGR_INTRCLR 0x14
#define CLKMGR_INTRSTS 0x18
#define CLKMGR_INTRSTK 0x1c
#define CLKMGR_INTRRAW 0x20
/* Clock Manager Main PPL group registers */
#define CLKMGR_MAINPLL_EN 0x24
#define CLKMGR_MAINPLL_ENS 0x28
#define CLKMGR_MAINPLL_ENR 0x2c
#define CLKMGR_MAINPLL_BYPASS 0x30
#define CLKMGR_MAINPLL_BYPASSS 0x34
#define CLKMGR_MAINPLL_BYPASSR 0x38
#define CLKMGR_MAINPLL_MPUCLK 0x3c
#define CLKMGR_MAINPLL_NOCCLK 0x40
#define CLKMGR_MAINPLL_NOCDIV 0x44
#define CLKMGR_MAINPLL_PLLGLOB 0x48
#define CLKMGR_MAINPLL_FDBCK 0x4c
#define CLKMGR_MAINPLL_MEM 0x50
#define CLKMGR_MAINPLL_MEMSTAT 0x54
#define CLKMGR_MAINPLL_PLLC0 0x58
#define CLKMGR_MAINPLL_PLLC1 0x5c
#define CLKMGR_MAINPLL_VCOCALIB 0x60
#define CLKMGR_MAINPLL_PLLC2 0x64
#define CLKMGR_MAINPLL_PLLC3 0x68
#define CLKMGR_MAINPLL_PLLM 0x6c
#define CLKMGR_MAINPLL_FHOP 0x70
#define CLKMGR_MAINPLL_SSC 0x74
#define CLKMGR_MAINPLL_LOSTLOCK 0x78
/* Clock Manager Peripheral PPL group registers */
#define CLKMGR_PERPLL_EN 0x7c
#define CLKMGR_PERPLL_ENS 0x80
#define CLKMGR_PERPLL_ENR 0x84
#define CLKMGR_PERPLL_BYPASS 0x88
#define CLKMGR_PERPLL_BYPASSS 0x8c
#define CLKMGR_PERPLL_BYPASSR 0x90
#define CLKMGR_PERPLL_EMACCTL 0x94
#define CLKMGR_PERPLL_GPIODIV 0x98
#define CLKMGR_PERPLL_PLLGLOB 0x9c
#define CLKMGR_PERPLL_FDBCK 0xa0
#define CLKMGR_PERPLL_MEM 0xa4
#define CLKMGR_PERPLL_MEMSTAT 0xa8
#define CLKMGR_PERPLL_PLLC0 0xac
#define CLKMGR_PERPLL_PLLC1 0xb0
#define CLKMGR_PERPLL_VCOCALIB 0xb4
#define CLKMGR_PERPLL_PLLC2 0xb8
#define CLKMGR_PERPLL_PLLC3 0xbc
#define CLKMGR_PERPLL_PLLM 0xc0
#define CLKMGR_PERPLL_FHOP 0xc4
#define CLKMGR_PERPLL_SSC 0xc8
#define CLKMGR_PERPLL_LOSTLOCK 0xcc
/* Clock Manager Altera group registers */
#define CLKMGR_ALTR_JTAG 0xd0
#define CLKMGR_ALTR_EMACACTR 0xd4
#define CLKMGR_ALTR_EMACBCTR 0xd8
#define CLKMGR_ALTR_EMACPTPCTR 0xdc
#define CLKMGR_ALTR_GPIODBCTR 0xe0
#define CLKMGR_ALTR_SDMMCCTR 0xe4
#define CLKMGR_ALTR_S2FUSER0CTR 0xe8
#define CLKMGR_ALTR_S2FUSER1CTR 0xec
#define CLKMGR_ALTR_PSIREFCTR 0xf0
#define CLKMGR_ALTR_EXTCNTRST 0xf4
#define CLKMGR_CTRL_BOOTMODE BIT(0)
#define CLKMGR_STAT_BUSY BIT(0)
#define CLKMGR_STAT_MAINPLL_LOCKED BIT(8)
#define CLKMGR_STAT_MAIN_TRANS BIT(9)
#define CLKMGR_STAT_PERPLL_LOCKED BIT(16)
#define CLKMGR_STAT_PERF_TRANS BIT(17)
#define CLKMGR_STAT_BOOTMODE BIT(24)
#define CLKMGR_STAT_BOOTCLKSRC BIT(25)
#define CLKMGR_STAT_ALLPLL_LOCKED_MASK \
(CLKMGR_STAT_MAINPLL_LOCKED | CLKMGR_STAT_PERPLL_LOCKED)
#define CLKMGR_INTER_MAINPLLLOCKED_MASK 0x00000001
#define CLKMGR_INTER_PERPLLLOCKED_MASK 0x00000002
#define CLKMGR_INTER_MAINPLLLOST_MASK 0x00000004
#define CLKMGR_INTER_PERPLLLOST_MASK 0x00000008
#define CLKMGR_CLKSRC_MASK GENMASK(18, 16)
#define CLKMGR_CLKSRC_OFFSET 16
#define CLKMGR_CLKSRC_MAIN 0
#define CLKMGR_CLKSRC_PER 1
#define CLKMGR_CLKSRC_OSC1 2
#define CLKMGR_CLKSRC_INTOSC 3
#define CLKMGR_CLKSRC_FPGA 4
#define CLKMGR_CLKCNT_MSK GENMASK(10, 0)
#define CLKMGR_BYPASS_MAINPLL_ALL 0x7
#define CLKMGR_BYPASS_PERPLL_ALL 0x7f
#define CLKMGR_NOCDIV_L4MAIN_OFFSET 0
#define CLKMGR_NOCDIV_L4MPCLK_OFFSET 8
#define CLKMGR_NOCDIV_L4SPCLK_OFFSET 16
#define CLKMGR_NOCDIV_CSATCLK_OFFSET 24
#define CLKMGR_NOCDIV_CSTRACECLK_OFFSET 26
#define CLKMGR_NOCDIV_CSPDBGCLK_OFFSET 28
#define CLKMGR_NOCDIV_DIVIDER_MASK 0x3
#define CLKMGR_PLLGLOB_PD_MASK BIT(0)
#define CLKMGR_PLLGLOB_RST_MASK BIT(1)
#define CLKMGR_PLLGLOB_AREFCLKDIV_MASK GENMASK(11, 8)
#define CLKMGR_PLLGLOB_DREFCLKDIV_MASK GENMASK(13, 12)
#define CLKMGR_PLLGLOB_REFCLKDIV_MASK GENMASK(13, 8)
#define CLKMGR_PLLGLOB_MODCLKDIV_MASK GENMASK(24, 27)
#define CLKMGR_PLLGLOB_AREFCLKDIV_OFFSET 8
#define CLKMGR_PLLGLOB_DREFCLKDIV_OFFSET 12
#define CLKMGR_PLLGLOB_REFCLKDIV_OFFSET 8
#define CLKMGR_PLLGLOB_MODCLKDIV_OFFSET 24
#define CLKMGR_PLLGLOB_VCO_PSRC_MASK GENMASK(17, 16)
#define CLKMGR_PLLGLOB_VCO_PSRC_OFFSET 16
#define CLKMGR_PLLGLOB_CLR_LOSTLOCK_BYPASS_MASK BIT(29)
#define CLKMGR_VCO_PSRC_EOSC1 0
#define CLKMGR_VCO_PSRC_INTOSC 1
#define CLKMGR_VCO_PSRC_F2S 2
#define CLKMGR_MEM_REQ_SET_MSK BIT(24)
#define CLKMGR_MEM_WR_SET_MSK BIT(25)
#define CLKMGR_MEM_ERR_MSK BIT(26)
#define CLKMGR_MEM_WDAT_LSB_OFFSET 16
#define CLKMGR_MEM_ADDR_MASK GENMASK(15, 0)
#define CLKMGR_MEM_ADDR_START 0x00004000
#define CLKMGR_PLLCX_EN_SET_MSK BIT(27)
#define CLKMGR_PLLCX_MUTE_SET_MSK BIT(28)
#define CLKMGR_VCOCALIB_MSCNT_MASK GENMASK(23, 16)
#define CLKMGR_VCOCALIB_MSCNT_OFFSET 16
#define CLKMGR_VCOCALIB_HSCNT_MASK GENMASK(9, 0)
#define CLKMGR_VCOCALIB_MSCNT_CONST 100
#define CLKMGR_VCOCALIB_HSCNT_CONST 4
#define CLKMGR_PLLM_MDIV_MASK GENMASK(9, 0)
#define CLKMGR_LOSTLOCK_SET_MASK BIT(0)
#define CLKMGR_PERPLLGRP_EN_SDMMCCLK_MASK BIT(5)
#define CLKMGR_PERPLLGRP_EMACCTL_EMAC0SELB_OFFSET 26
#define CLKMGR_PERPLLGRP_EMACCTL_EMAC0SELB_MASK BIT(26)
#define CLKMGR_PERPLLGRP_EMACCTL_EMAC1SELB_OFFSET 27
#define CLKMGR_PERPLLGRP_EMACCTL_EMAC1SELB_MASK BIT(27)
#define CLKMGR_PERPLLGRP_EMACCTL_EMAC2SELB_OFFSET 28
#define CLKMGR_PERPLLGRP_EMACCTL_EMAC2SELB_MASK BIT(28)
#define CLKMGR_ALT_EMACCTR_SRC_OFFSET 16
#define CLKMGR_ALT_EMACCTR_SRC_MASK GENMASK(18, 16)
#define CLKMGR_ALT_EMACCTR_CNT_OFFSET 0
#define CLKMGR_ALT_EMACCTR_CNT_MASK GENMASK(10, 0)
#define CLKMGR_ALT_EXTCNTRST_EMACACNTRST BIT(0)
#define CLKMGR_ALT_EXTCNTRST_EMACBCNTRST BIT(1)
#define CLKMGR_ALT_EXTCNTRST_EMACPTPCNTRST BIT(2)
#define CLKMGR_ALT_EXTCNTRST_GPIODBCNTRST BIT(3)
#define CLKMGR_ALT_EXTCNTRST_SDMMCCNTRST BIT(4)
#define CLKMGR_ALT_EXTCNTRST_S2FUSER0CNTRST BIT(5)
#define CLKMGR_ALT_EXTCNTRST_S2FUSER1CNTRST BIT(6)
#define CLKMGR_ALT_EXTCNTRST_PSIREFCNTRST BIT(7)
#define CLKMGR_ALT_EXTCNTRST_ALLCNTRST \
(CLKMGR_ALT_EXTCNTRST_EMACACNTRST | \
CLKMGR_ALT_EXTCNTRST_EMACBCNTRST | \
CLKMGR_ALT_EXTCNTRST_EMACPTPCNTRST | \
CLKMGR_ALT_EXTCNTRST_GPIODBCNTRST | \
CLKMGR_ALT_EXTCNTRST_SDMMCCNTRST | \
CLKMGR_ALT_EXTCNTRST_S2FUSER0CNTRST | \
CLKMGR_ALT_EXTCNTRST_S2FUSER1CNTRST | \
CLKMGR_ALT_EXTCNTRST_PSIREFCNTRST)
#endif /* _CLK_AGILEX_ */

View File

@ -0,0 +1,71 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019, Intel Corporation
*/
#ifndef __AGILEX_CLOCK_H
#define __AGILEX_CLOCK_H
/* fixed rate clocks */
#define AGILEX_OSC1 0
#define AGILEX_CB_INTOSC_HS_DIV2_CLK 1
#define AGILEX_CB_INTOSC_LS_CLK 2
#define AGILEX_L4_SYS_FREE_CLK 3
#define AGILEX_F2S_FREE_CLK 4
/* PLL clocks */
#define AGILEX_MAIN_PLL_CLK 5
#define AGILEX_MAIN_PLL_C0_CLK 6
#define AGILEX_MAIN_PLL_C1_CLK 7
#define AGILEX_MAIN_PLL_C2_CLK 8
#define AGILEX_MAIN_PLL_C3_CLK 9
#define AGILEX_PERIPH_PLL_CLK 10
#define AGILEX_PERIPH_PLL_C0_CLK 11
#define AGILEX_PERIPH_PLL_C1_CLK 12
#define AGILEX_PERIPH_PLL_C2_CLK 13
#define AGILEX_PERIPH_PLL_C3_CLK 14
#define AGILEX_MPU_FREE_CLK 15
#define AGILEX_MPU_CCU_CLK 16
#define AGILEX_BOOT_CLK 17
/* fixed factor clocks */
#define AGILEX_L3_MAIN_FREE_CLK 18
#define AGILEX_NOC_FREE_CLK 19
#define AGILEX_S2F_USR0_CLK 20
#define AGILEX_NOC_CLK 21
#define AGILEX_EMAC_A_FREE_CLK 22
#define AGILEX_EMAC_B_FREE_CLK 23
#define AGILEX_EMAC_PTP_FREE_CLK 24
#define AGILEX_GPIO_DB_FREE_CLK 25
#define AGILEX_SDMMC_FREE_CLK 26
#define AGILEX_S2F_USER0_FREE_CLK 27
#define AGILEX_S2F_USER1_FREE_CLK 28
#define AGILEX_PSI_REF_FREE_CLK 29
/* Gate clocks */
#define AGILEX_MPU_CLK 30
#define AGILEX_MPU_PERIPH_CLK 31
#define AGILEX_L4_MAIN_CLK 32
#define AGILEX_L4_MP_CLK 33
#define AGILEX_L4_SP_CLK 34
#define AGILEX_CS_AT_CLK 35
#define AGILEX_CS_TRACE_CLK 36
#define AGILEX_CS_PDBG_CLK 37
#define AGILEX_CS_TIMER_CLK 38
#define AGILEX_S2F_USER0_CLK 39
#define AGILEX_EMAC0_CLK 40
#define AGILEX_EMAC1_CLK 41
#define AGILEX_EMAC2_CLK 42
#define AGILEX_EMAC_PTP_CLK 43
#define AGILEX_GPIO_DB_CLK 44
#define AGILEX_NAND_CLK 45
#define AGILEX_PSI_REF_CLK 46
#define AGILEX_S2F_USER1_CLK 47
#define AGILEX_SDMMC_CLK 48
#define AGILEX_SPI_M_CLK 49
#define AGILEX_USB_CLK 50
#define AGILEX_NAND_X_CLK 51
#define AGILEX_NAND_ECC_CLK 52
#define AGILEX_NUM_CLKS 53
#endif /* __AGILEX_CLOCK_H */