u-boot/drivers/clk/rockchip/clk_rv1108.c
Simon Glass 401d1c4f5d common: Drop asm/global_data.h from common header
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-02-02 15:33:42 -05:00

729 lines
19 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* (C) Copyright 2016 Rockchip Electronics Co., Ltd
* Author: Andy Yan <andy.yan@rock-chips.com>
*/
#include <common.h>
#include <bitfield.h>
#include <clk-uclass.h>
#include <dm.h>
#include <errno.h>
#include <log.h>
#include <malloc.h>
#include <syscon.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/cru_rv1108.h>
#include <asm/arch-rockchip/hardware.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
#include <dt-bindings/clock/rv1108-cru.h>
#include <linux/delay.h>
#include <linux/stringify.h>
DECLARE_GLOBAL_DATA_PTR;
enum {
VCO_MAX_HZ = 2400U * 1000000,
VCO_MIN_HZ = 600 * 1000000,
OUTPUT_MAX_HZ = 2400U * 1000000,
OUTPUT_MIN_HZ = 24 * 1000000,
};
#define DIV_TO_RATE(input_rate, div) ((input_rate) / ((div) + 1))
#define PLL_DIVISORS(hz, _refdiv, _postdiv1, _postdiv2) {\
.refdiv = _refdiv,\
.fbdiv = (u32)((u64)hz * _refdiv * _postdiv1 * _postdiv2 / OSC_HZ),\
.postdiv1 = _postdiv1, .postdiv2 = _postdiv2};\
_Static_assert(((u64)hz * _refdiv * _postdiv1 * _postdiv2 / OSC_HZ) *\
OSC_HZ / (_refdiv * _postdiv1 * _postdiv2) == hz,\
#hz "Hz cannot be hit with PLL "\
"divisors on line " __stringify(__LINE__));
static const struct pll_div apll_init_cfg = PLL_DIVISORS(APLL_HZ, 1, 3, 1);
static const struct pll_div gpll_init_cfg = PLL_DIVISORS(GPLL_HZ, 2, 2, 1);
/* use integer mode */
static inline int rv1108_pll_id(enum rk_clk_id clk_id)
{
int id = 0;
switch (clk_id) {
case CLK_ARM:
case CLK_DDR:
id = clk_id - 1;
break;
case CLK_GENERAL:
id = 2;
break;
default:
printf("invalid pll id:%d\n", clk_id);
id = -1;
break;
}
return id;
}
static int rkclk_set_pll(struct rv1108_cru *cru, enum rk_clk_id clk_id,
const struct pll_div *div)
{
int pll_id = rv1108_pll_id(clk_id);
struct rv1108_pll *pll = &cru->pll[pll_id];
/* All PLLs have same VCO and output frequency range restrictions. */
uint vco_hz = OSC_HZ / 1000 * div->fbdiv / div->refdiv * 1000;
uint output_hz = vco_hz / div->postdiv1 / div->postdiv2;
debug("PLL at %p: fb=%d, ref=%d, pst1=%d, pst2=%d, vco=%u Hz, output=%u Hz\n",
pll, div->fbdiv, div->refdiv, div->postdiv1,
div->postdiv2, vco_hz, output_hz);
assert(vco_hz >= VCO_MIN_HZ && vco_hz <= VCO_MAX_HZ &&
output_hz >= OUTPUT_MIN_HZ && output_hz <= OUTPUT_MAX_HZ);
/*
* When power on or changing PLL setting,
* we must force PLL into slow mode to ensure output stable clock.
*/
rk_clrsetreg(&pll->con3, WORK_MODE_MASK,
WORK_MODE_SLOW << WORK_MODE_SHIFT);
/* use integer mode */
rk_setreg(&pll->con3, 1 << DSMPD_SHIFT);
/* Power down */
rk_setreg(&pll->con3, 1 << GLOBAL_POWER_DOWN_SHIFT);
rk_clrsetreg(&pll->con0, FBDIV_MASK, div->fbdiv << FBDIV_SHIFT);
rk_clrsetreg(&pll->con1, POSTDIV1_MASK | POSTDIV2_MASK | REFDIV_MASK,
(div->postdiv1 << POSTDIV1_SHIFT |
div->postdiv2 << POSTDIV2_SHIFT |
div->refdiv << REFDIV_SHIFT));
rk_clrsetreg(&pll->con2, FRACDIV_MASK,
(div->refdiv << REFDIV_SHIFT));
/* Power Up */
rk_clrreg(&pll->con3, 1 << GLOBAL_POWER_DOWN_SHIFT);
/* waiting for pll lock */
while (readl(&pll->con2) & (1 << LOCK_STA_SHIFT))
udelay(1);
/*
* set PLL into normal mode.
*/
rk_clrsetreg(&pll->con3, WORK_MODE_MASK,
WORK_MODE_NORMAL << WORK_MODE_SHIFT);
return 0;
}
static uint32_t rkclk_pll_get_rate(struct rv1108_cru *cru,
enum rk_clk_id clk_id)
{
uint32_t refdiv, fbdiv, postdiv1, postdiv2;
uint32_t con0, con1, con3;
int pll_id = rv1108_pll_id(clk_id);
struct rv1108_pll *pll = &cru->pll[pll_id];
uint32_t freq;
con3 = readl(&pll->con3);
if (con3 & WORK_MODE_MASK) {
con0 = readl(&pll->con0);
con1 = readl(&pll->con1);
fbdiv = (con0 >> FBDIV_SHIFT) & FBDIV_MASK;
postdiv1 = (con1 & POSTDIV1_MASK) >> POSTDIV1_SHIFT;
postdiv2 = (con1 & POSTDIV2_MASK) >> POSTDIV2_SHIFT;
refdiv = (con1 >> REFDIV_SHIFT) & REFDIV_MASK;
freq = (24 * fbdiv / (refdiv * postdiv1 * postdiv2)) * 1000000;
} else {
freq = OSC_HZ;
}
return freq;
}
static int rv1108_mac_set_clk(struct rv1108_cru *cru, ulong rate)
{
uint32_t con = readl(&cru->clksel_con[24]);
ulong pll_rate;
uint8_t div;
if ((con >> MAC_PLL_SEL_SHIFT) & MAC_PLL_SEL_GPLL)
pll_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
else
pll_rate = rkclk_pll_get_rate(cru, CLK_ARM);
/*default set 50MHZ for gmac*/
if (!rate)
rate = 50000000;
div = DIV_ROUND_UP(pll_rate, rate) - 1;
if (div <= 0x1f)
rk_clrsetreg(&cru->clksel_con[24], MAC_CLK_DIV_MASK,
div << MAC_CLK_DIV_SHIFT);
else
debug("Unsupported div for gmac:%d\n", div);
return DIV_TO_RATE(pll_rate, div);
}
static int rv1108_sfc_set_clk(struct rv1108_cru *cru, uint rate)
{
u32 con = readl(&cru->clksel_con[27]);
u32 pll_rate;
u32 div;
if ((con >> SFC_PLL_SEL_SHIFT) && SFC_PLL_SEL_GPLL)
pll_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
else
pll_rate = rkclk_pll_get_rate(cru, CLK_DDR);
div = DIV_ROUND_UP(pll_rate, rate) - 1;
if (div <= 0x3f)
rk_clrsetreg(&cru->clksel_con[27], SFC_CLK_DIV_MASK,
div << SFC_CLK_DIV_SHIFT);
else
debug("Unsupported sfc clk rate:%d\n", rate);
return DIV_TO_RATE(pll_rate, div);
}
static ulong rv1108_saradc_get_clk(struct rv1108_cru *cru)
{
u32 div, val;
val = readl(&cru->clksel_con[22]);
div = bitfield_extract(val, CLK_SARADC_DIV_CON_SHIFT,
CLK_SARADC_DIV_CON_WIDTH);
return DIV_TO_RATE(OSC_HZ, div);
}
static ulong rv1108_saradc_set_clk(struct rv1108_cru *cru, uint hz)
{
int src_clk_div;
src_clk_div = DIV_ROUND_UP(OSC_HZ, hz) - 1;
assert(src_clk_div < 128);
rk_clrsetreg(&cru->clksel_con[22],
CLK_SARADC_DIV_CON_MASK,
src_clk_div << CLK_SARADC_DIV_CON_SHIFT);
return rv1108_saradc_get_clk(cru);
}
static ulong rv1108_aclk_vio1_get_clk(struct rv1108_cru *cru)
{
u32 div, val;
val = readl(&cru->clksel_con[28]);
div = bitfield_extract(val, ACLK_VIO1_CLK_DIV_SHIFT,
CLK_VIO_DIV_CON_WIDTH);
return DIV_TO_RATE(GPLL_HZ, div);
}
static ulong rv1108_aclk_vio1_set_clk(struct rv1108_cru *cru, uint hz)
{
int src_clk_div;
src_clk_div = DIV_ROUND_UP(GPLL_HZ, hz) - 1;
assert(src_clk_div < 32);
rk_clrsetreg(&cru->clksel_con[28],
ACLK_VIO1_CLK_DIV_MASK | ACLK_VIO1_PLL_SEL_MASK,
(src_clk_div << ACLK_VIO1_CLK_DIV_SHIFT) |
(VIO_PLL_SEL_GPLL << ACLK_VIO1_PLL_SEL_SHIFT));
return rv1108_aclk_vio1_get_clk(cru);
}
static ulong rv1108_aclk_vio0_get_clk(struct rv1108_cru *cru)
{
u32 div, val;
val = readl(&cru->clksel_con[28]);
div = bitfield_extract(val, ACLK_VIO0_CLK_DIV_SHIFT,
CLK_VIO_DIV_CON_WIDTH);
return DIV_TO_RATE(GPLL_HZ, div);
}
static ulong rv1108_aclk_vio0_set_clk(struct rv1108_cru *cru, uint hz)
{
int src_clk_div;
src_clk_div = DIV_ROUND_UP(GPLL_HZ, hz) - 1;
assert(src_clk_div < 32);
rk_clrsetreg(&cru->clksel_con[28],
ACLK_VIO0_CLK_DIV_MASK | ACLK_VIO0_PLL_SEL_MASK,
(src_clk_div << ACLK_VIO0_CLK_DIV_SHIFT) |
(VIO_PLL_SEL_GPLL << ACLK_VIO0_PLL_SEL_SHIFT));
/*HCLK_VIO default div = 4*/
rk_clrsetreg(&cru->clksel_con[29],
HCLK_VIO_CLK_DIV_MASK,
3 << HCLK_VIO_CLK_DIV_SHIFT);
/*PCLK_VIO default div = 4*/
rk_clrsetreg(&cru->clksel_con[29],
PCLK_VIO_CLK_DIV_MASK,
3 << PCLK_VIO_CLK_DIV_SHIFT);
return rv1108_aclk_vio0_get_clk(cru);
}
static ulong rv1108_dclk_vop_get_clk(struct rv1108_cru *cru)
{
u32 div, val;
val = readl(&cru->clksel_con[32]);
div = bitfield_extract(val, DCLK_VOP_CLK_DIV_SHIFT,
DCLK_VOP_DIV_CON_WIDTH);
return DIV_TO_RATE(GPLL_HZ, div);
}
static ulong rv1108_dclk_vop_set_clk(struct rv1108_cru *cru, uint hz)
{
int src_clk_div;
src_clk_div = DIV_ROUND_UP(GPLL_HZ, hz) - 1;
assert(src_clk_div < 64);
rk_clrsetreg(&cru->clksel_con[32],
DCLK_VOP_CLK_DIV_MASK | DCLK_VOP_PLL_SEL_MASK |
DCLK_VOP_SEL_SHIFT,
(src_clk_div << DCLK_VOP_CLK_DIV_SHIFT) |
(DCLK_VOP_PLL_SEL_GPLL << DCLK_VOP_PLL_SEL_SHIFT) |
(DCLK_VOP_SEL_PLL << DCLK_VOP_SEL_SHIFT));
return rv1108_dclk_vop_get_clk(cru);
}
static ulong rv1108_aclk_bus_get_clk(struct rv1108_cru *cru)
{
u32 div, val;
ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
val = readl(&cru->clksel_con[2]);
div = bitfield_extract(val, ACLK_BUS_DIV_CON_SHIFT,
ACLK_BUS_DIV_CON_WIDTH);
return DIV_TO_RATE(parent_rate, div);
}
static ulong rv1108_aclk_bus_set_clk(struct rv1108_cru *cru, uint hz)
{
int src_clk_div;
ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
src_clk_div = DIV_ROUND_UP(parent_rate, hz) - 1;
assert(src_clk_div < 32);
rk_clrsetreg(&cru->clksel_con[2],
ACLK_BUS_DIV_CON_MASK | ACLK_BUS_PLL_SEL_MASK,
(src_clk_div << ACLK_BUS_DIV_CON_SHIFT) |
(ACLK_BUS_PLL_SEL_GPLL << ACLK_BUS_PLL_SEL_SHIFT));
return rv1108_aclk_bus_get_clk(cru);
}
static ulong rv1108_aclk_peri_get_clk(struct rv1108_cru *cru)
{
u32 div, val;
ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
val = readl(&cru->clksel_con[23]);
div = bitfield_extract(val, ACLK_PERI_DIV_CON_SHIFT,
PERI_DIV_CON_WIDTH);
return DIV_TO_RATE(parent_rate, div);
}
static ulong rv1108_hclk_peri_get_clk(struct rv1108_cru *cru)
{
u32 div, val;
ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
val = readl(&cru->clksel_con[23]);
div = bitfield_extract(val, HCLK_PERI_DIV_CON_SHIFT,
PERI_DIV_CON_WIDTH);
return DIV_TO_RATE(parent_rate, div);
}
static ulong rv1108_pclk_peri_get_clk(struct rv1108_cru *cru)
{
u32 div, val;
ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
val = readl(&cru->clksel_con[23]);
div = bitfield_extract(val, PCLK_PERI_DIV_CON_SHIFT,
PERI_DIV_CON_WIDTH);
return DIV_TO_RATE(parent_rate, div);
}
static ulong rv1108_aclk_peri_set_clk(struct rv1108_cru *cru, uint hz)
{
int src_clk_div;
ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
src_clk_div = DIV_ROUND_UP(parent_rate, hz) - 1;
assert(src_clk_div < 32);
rk_clrsetreg(&cru->clksel_con[23],
ACLK_PERI_DIV_CON_MASK | ACLK_PERI_PLL_SEL_MASK,
(src_clk_div << ACLK_PERI_DIV_CON_SHIFT) |
(ACLK_PERI_PLL_SEL_GPLL << ACLK_PERI_PLL_SEL_SHIFT));
return rv1108_aclk_peri_get_clk(cru);
}
static ulong rv1108_hclk_peri_set_clk(struct rv1108_cru *cru, uint hz)
{
int src_clk_div;
ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
src_clk_div = DIV_ROUND_UP(parent_rate, hz) - 1;
assert(src_clk_div < 32);
rk_clrsetreg(&cru->clksel_con[23],
HCLK_PERI_DIV_CON_MASK,
(src_clk_div << HCLK_PERI_DIV_CON_SHIFT));
return rv1108_hclk_peri_get_clk(cru);
}
static ulong rv1108_pclk_peri_set_clk(struct rv1108_cru *cru, uint hz)
{
int src_clk_div;
ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
src_clk_div = DIV_ROUND_UP(parent_rate, hz) - 1;
assert(src_clk_div < 32);
rk_clrsetreg(&cru->clksel_con[23],
PCLK_PERI_DIV_CON_MASK,
(src_clk_div << PCLK_PERI_DIV_CON_SHIFT));
return rv1108_pclk_peri_get_clk(cru);
}
static ulong rv1108_i2c_get_clk(struct rv1108_cru *cru, ulong clk_id)
{
u32 div, con;
switch (clk_id) {
case SCLK_I2C0_PMU:
con = readl(&cru->clksel_con[19]);
div = bitfield_extract(con, CLK_I2C0_DIV_CON_SHIFT,
I2C_DIV_CON_WIDTH);
break;
case SCLK_I2C1:
con = readl(&cru->clksel_con[19]);
div = bitfield_extract(con, CLK_I2C1_DIV_CON_SHIFT,
I2C_DIV_CON_WIDTH);
break;
case SCLK_I2C2:
con = readl(&cru->clksel_con[20]);
div = bitfield_extract(con, CLK_I2C2_DIV_CON_SHIFT,
I2C_DIV_CON_WIDTH);
break;
case SCLK_I2C3:
con = readl(&cru->clksel_con[20]);
div = bitfield_extract(con, CLK_I2C3_DIV_CON_SHIFT,
I2C_DIV_CON_WIDTH);
break;
default:
printf("do not support this i2c bus\n");
return -EINVAL;
}
return DIV_TO_RATE(GPLL_HZ, div);
}
static ulong rv1108_i2c_set_clk(struct rv1108_cru *cru, ulong clk_id, uint hz)
{
int src_clk_div;
/* i2c0,4,8 src clock from ppll, i2c1,2,3,5,6,7 src clock from gpll*/
src_clk_div = GPLL_HZ / hz;
assert(src_clk_div - 1 <= 127);
switch (clk_id) {
case SCLK_I2C0_PMU:
rk_clrsetreg(&cru->clksel_con[19],
CLK_I2C0_DIV_CON_MASK | CLK_I2C1_PLL_SEL_MASK,
(src_clk_div << CLK_I2C0_DIV_CON_SHIFT) |
(CLK_I2C1_PLL_SEL_GPLL << CLK_I2C1_PLL_SEL_SHIFT));
break;
case SCLK_I2C1:
rk_clrsetreg(&cru->clksel_con[19],
CLK_I2C1_DIV_CON_MASK | CLK_I2C1_PLL_SEL_MASK,
(src_clk_div << CLK_I2C1_DIV_CON_SHIFT) |
(CLK_I2C1_PLL_SEL_GPLL << CLK_I2C1_PLL_SEL_SHIFT));
break;
case SCLK_I2C2:
rk_clrsetreg(&cru->clksel_con[20],
CLK_I2C2_DIV_CON_MASK | CLK_I2C3_PLL_SEL_MASK,
(src_clk_div << CLK_I2C2_DIV_CON_SHIFT) |
(CLK_I2C3_PLL_SEL_GPLL << CLK_I2C3_PLL_SEL_SHIFT));
break;
case SCLK_I2C3:
rk_clrsetreg(&cru->clksel_con[20],
CLK_I2C3_DIV_CON_MASK | CLK_I2C3_PLL_SEL_MASK,
(src_clk_div << CLK_I2C3_DIV_CON_SHIFT) |
(CLK_I2C3_PLL_SEL_GPLL << CLK_I2C3_PLL_SEL_SHIFT));
break;
default:
printf("do not support this i2c bus\n");
return -EINVAL;
}
return rv1108_i2c_get_clk(cru, clk_id);
}
static ulong rv1108_mmc_get_clk(struct rv1108_cru *cru)
{
u32 div, con;
ulong mmc_clk;
con = readl(&cru->clksel_con[26]);
div = bitfield_extract(con, EMMC_CLK_DIV_SHIFT, 8);
con = readl(&cru->clksel_con[25]);
if ((con & EMMC_PLL_SEL_MASK) >> EMMC_PLL_SEL_SHIFT == EMMC_PLL_SEL_OSC)
mmc_clk = DIV_TO_RATE(OSC_HZ, div) / 2;
else
mmc_clk = DIV_TO_RATE(GPLL_HZ, div) / 2;
debug("%s div %d get_clk %ld\n", __func__, div, mmc_clk);
return mmc_clk;
}
static ulong rv1108_mmc_set_clk(struct rv1108_cru *cru, ulong rate)
{
int div;
u32 pll_rate;
div = DIV_ROUND_UP(rkclk_pll_get_rate(cru, CLK_GENERAL), rate);
if (div < 127) {
debug("%s source gpll\n", __func__);
rk_clrsetreg(&cru->clksel_con[25], EMMC_PLL_SEL_MASK,
(EMMC_PLL_SEL_GPLL << EMMC_PLL_SEL_SHIFT));
pll_rate = rkclk_pll_get_rate(cru, CLK_GENERAL);
} else {
debug("%s source 24m\n", __func__);
rk_clrsetreg(&cru->clksel_con[25], EMMC_PLL_SEL_MASK,
(EMMC_PLL_SEL_OSC << EMMC_PLL_SEL_SHIFT));
pll_rate = OSC_HZ;
}
div = DIV_ROUND_UP(pll_rate / 2, rate);
rk_clrsetreg(&cru->clksel_con[26], EMMC_CLK_DIV_MASK,
((div - 1) << EMMC_CLK_DIV_SHIFT));
debug("%s set_rate %ld div %d\n", __func__, rate, div);
return DIV_TO_RATE(pll_rate, div);
}
static ulong rv1108_clk_get_rate(struct clk *clk)
{
struct rv1108_clk_priv *priv = dev_get_priv(clk->dev);
switch (clk->id) {
case 0 ... 63:
return rkclk_pll_get_rate(priv->cru, clk->id);
case SCLK_SARADC:
return rv1108_saradc_get_clk(priv->cru);
case ACLK_VIO0:
return rv1108_aclk_vio0_get_clk(priv->cru);
case ACLK_VIO1:
return rv1108_aclk_vio1_get_clk(priv->cru);
case DCLK_VOP:
return rv1108_dclk_vop_get_clk(priv->cru);
case ACLK_PRE:
return rv1108_aclk_bus_get_clk(priv->cru);
case ACLK_PERI:
return rv1108_aclk_peri_get_clk(priv->cru);
case HCLK_PERI:
return rv1108_hclk_peri_get_clk(priv->cru);
case PCLK_PERI:
return rv1108_pclk_peri_get_clk(priv->cru);
case SCLK_I2C0_PMU:
case SCLK_I2C1:
case SCLK_I2C2:
case SCLK_I2C3:
return rv1108_i2c_get_clk(priv->cru, clk->id);
case HCLK_EMMC:
case SCLK_EMMC:
case SCLK_EMMC_SAMPLE:
return rv1108_mmc_get_clk(priv->cru);
default:
return -ENOENT;
}
}
static ulong rv1108_clk_set_rate(struct clk *clk, ulong rate)
{
struct rv1108_clk_priv *priv = dev_get_priv(clk->dev);
ulong new_rate;
switch (clk->id) {
case SCLK_MAC:
new_rate = rv1108_mac_set_clk(priv->cru, rate);
break;
case SCLK_SFC:
new_rate = rv1108_sfc_set_clk(priv->cru, rate);
break;
case SCLK_SARADC:
new_rate = rv1108_saradc_set_clk(priv->cru, rate);
break;
case ACLK_VIO0:
new_rate = rv1108_aclk_vio0_set_clk(priv->cru, rate);
break;
case ACLK_VIO1:
new_rate = rv1108_aclk_vio1_set_clk(priv->cru, rate);
break;
case DCLK_VOP:
new_rate = rv1108_dclk_vop_set_clk(priv->cru, rate);
break;
case ACLK_PRE:
new_rate = rv1108_aclk_bus_set_clk(priv->cru, rate);
break;
case ACLK_PERI:
new_rate = rv1108_aclk_peri_set_clk(priv->cru, rate);
break;
case HCLK_PERI:
new_rate = rv1108_hclk_peri_set_clk(priv->cru, rate);
break;
case PCLK_PERI:
new_rate = rv1108_pclk_peri_set_clk(priv->cru, rate);
break;
case SCLK_I2C0_PMU:
case SCLK_I2C1:
case SCLK_I2C2:
case SCLK_I2C3:
new_rate = rv1108_i2c_set_clk(priv->cru, clk->id, rate);
break;
case HCLK_EMMC:
case SCLK_EMMC:
new_rate = rv1108_mmc_set_clk(priv->cru, rate);
break;
default:
return -ENOENT;
}
return new_rate;
}
static const struct clk_ops rv1108_clk_ops = {
.get_rate = rv1108_clk_get_rate,
.set_rate = rv1108_clk_set_rate,
};
static void rkclk_init(struct rv1108_cru *cru)
{
unsigned int apll, dpll, gpll;
unsigned int aclk_bus, aclk_peri, hclk_peri, pclk_peri;
aclk_bus = rv1108_aclk_bus_set_clk(cru, ACLK_BUS_HZ / 2);
aclk_peri = rv1108_aclk_peri_set_clk(cru, ACLK_PERI_HZ / 2);
hclk_peri = rv1108_hclk_peri_set_clk(cru, HCLK_PERI_HZ / 2);
pclk_peri = rv1108_pclk_peri_set_clk(cru, PCLK_PERI_HZ / 2);
rv1108_aclk_vio0_set_clk(cru, 297000000);
rv1108_aclk_vio1_set_clk(cru, 297000000);
/* configure apll */
rkclk_set_pll(cru, CLK_ARM, &apll_init_cfg);
rkclk_set_pll(cru, CLK_GENERAL, &gpll_init_cfg);
aclk_bus = rv1108_aclk_bus_set_clk(cru, ACLK_BUS_HZ);
aclk_peri = rv1108_aclk_peri_set_clk(cru, ACLK_PERI_HZ);
hclk_peri = rv1108_hclk_peri_set_clk(cru, HCLK_PERI_HZ);
pclk_peri = rv1108_pclk_peri_set_clk(cru, PCLK_PERI_HZ);
apll = rkclk_pll_get_rate(cru, CLK_ARM);
dpll = rkclk_pll_get_rate(cru, CLK_DDR);
gpll = rkclk_pll_get_rate(cru, CLK_GENERAL);
rk_clrsetreg(&cru->clksel_con[0], CORE_CLK_DIV_MASK,
0 << MAC_CLK_DIV_SHIFT);
printf("APLL: %d DPLL:%d GPLL:%d\n", apll, dpll, gpll);
printf("ACLK_BUS: %d ACLK_PERI:%d HCLK_PERI:%d PCLK_PERI:%d\n",
aclk_bus, aclk_peri, hclk_peri, pclk_peri);
}
static int rv1108_clk_of_to_plat(struct udevice *dev)
{
struct rv1108_clk_priv *priv = dev_get_priv(dev);
priv->cru = dev_read_addr_ptr(dev);
return 0;
}
static int rv1108_clk_probe(struct udevice *dev)
{
struct rv1108_clk_priv *priv = dev_get_priv(dev);
rkclk_init(priv->cru);
return 0;
}
static int rv1108_clk_bind(struct udevice *dev)
{
int ret;
struct udevice *sys_child;
struct sysreset_reg *priv;
/* The reset driver does not have a device node, so bind it here */
ret = device_bind_driver(dev, "rockchip_sysreset", "sysreset",
&sys_child);
if (ret) {
debug("Warning: No sysreset driver: ret=%d\n", ret);
} else {
priv = malloc(sizeof(struct sysreset_reg));
priv->glb_srst_fst_value = offsetof(struct rv1108_cru,
glb_srst_fst_val);
priv->glb_srst_snd_value = offsetof(struct rv1108_cru,
glb_srst_snd_val);
dev_set_priv(sys_child, priv);
}
#if CONFIG_IS_ENABLED(RESET_ROCKCHIP)
ret = offsetof(struct rv1108_cru, softrst_con[0]);
ret = rockchip_reset_bind(dev, ret, 13);
if (ret)
debug("Warning: software reset driver bind faile\n");
#endif
return 0;
}
static const struct udevice_id rv1108_clk_ids[] = {
{ .compatible = "rockchip,rv1108-cru" },
{ }
};
U_BOOT_DRIVER(clk_rv1108) = {
.name = "clk_rv1108",
.id = UCLASS_CLK,
.of_match = rv1108_clk_ids,
.priv_auto = sizeof(struct rv1108_clk_priv),
.ops = &rv1108_clk_ops,
.bind = rv1108_clk_bind,
.of_to_plat = rv1108_clk_of_to_plat,
.probe = rv1108_clk_probe,
};