svn commit: r358646 - stable/12/sys/arm64/rockchip/clk
Emmanuel Vadot
manu at FreeBSD.org
Wed Mar 4 21:06:30 UTC 2020
Author: manu
Date: Wed Mar 4 21:06:29 2020
New Revision: 358646
URL: https://svnweb.freebsd.org/changeset/base/358646
Log:
MFC r355356:
arm64: rockchip: rl3399: Remove the ability to put the PLL in normal mode at boot
RK3399 PLLs have three modes :
- Normal, where they behave normally and their freq is calculated based on
the registers values.
- Slow, where the PLL freq is 24Mhz (well, the external oscillator).
- Deep Slow, used for suspend where the freq is 32Khz.
We used to put every CPU related PLL in normal mode but it can cause problem
if the firmware didn't setup the clocks register correctly.
And even if it did but left the pll in slow or deep slow mode that might be
because the PMIC suppling voltage for the CPU haven't been configured yet
and we cannot do that at this point.
So remove the ability to set PLLs to normal mode at boot to avoid any problems.
Modified:
stable/12/sys/arm64/rockchip/clk/rk3399_cru.c
stable/12/sys/arm64/rockchip/clk/rk_clk_pll.c
stable/12/sys/arm64/rockchip/clk/rk_clk_pll.h
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/arm64/rockchip/clk/rk3399_cru.c
==============================================================================
--- stable/12/sys/arm64/rockchip/clk/rk3399_cru.c Wed Mar 4 21:04:57 2020 (r358645)
+++ stable/12/sys/arm64/rockchip/clk/rk3399_cru.c Wed Mar 4 21:06:29 2020 (r358646)
@@ -692,7 +692,7 @@ static struct rk_clk_armclk_rates rk3399_cpu_b_rates[]
/* Standard PLL. */
-#define PLL(_id, _name, _base, _nm) \
+#define PLL(_id, _name, _base) \
{ \
.type = RK3399_CLK_PLL, \
.clk.pll = &(struct rk_clk_pll_def) { \
@@ -703,7 +703,6 @@ static struct rk_clk_armclk_rates rk3399_cpu_b_rates[]
.clkdef.flags = CLK_NODE_STATIC_STRINGS, \
.base_offset = _base, \
.rates = rk3399_pll_rates, \
- .normal_mode = _nm \
}, \
}
@@ -796,13 +795,13 @@ static struct rk_clk rk3399_clks[] = {
FFACT(0, "clk_ddrc_div2", "clk_ddrc", 1, 2),
/* PLLs */
- PLL(PLL_APLLL, "lpll", 0x00, false),
- PLL(PLL_APLLB, "bpll", 0x20, true),
- PLL(PLL_DPLL, "dpll", 0x40, false),
- PLL(PLL_CPLL, "cpll", 0x60, false),
- PLL(PLL_GPLL, "gpll", 0x80, false),
- PLL(PLL_NPLL, "npll", 0xA0, false),
- PLL(PLL_VPLL, "vpll", 0xC0, false),
+ PLL(PLL_APLLL, "lpll", 0x00),
+ PLL(PLL_APLLB, "bpll", 0x20),
+ PLL(PLL_DPLL, "dpll", 0x40),
+ PLL(PLL_CPLL, "cpll", 0x60),
+ PLL(PLL_GPLL, "gpll", 0x80),
+ PLL(PLL_NPLL, "npll", 0xA0),
+ PLL(PLL_VPLL, "vpll", 0xC0),
/* CRU_CLKSEL_CON0 */
CDIV(0, "aclkm_core_l_c", "armclkl", 0,
Modified: stable/12/sys/arm64/rockchip/clk/rk_clk_pll.c
==============================================================================
--- stable/12/sys/arm64/rockchip/clk/rk_clk_pll.c Wed Mar 4 21:04:57 2020 (r358645)
+++ stable/12/sys/arm64/rockchip/clk/rk_clk_pll.c Wed Mar 4 21:06:29 2020 (r358646)
@@ -54,8 +54,6 @@ struct rk_clk_pll_sc {
struct rk_clk_pll_rate *rates;
struct rk_clk_pll_rate *frac_rates;
-
- bool normal_mode;
};
#define WRITE4(_clk, off, val) \
@@ -346,18 +344,8 @@ static int
rk3399_clk_pll_init(struct clknode *clk, device_t dev)
{
struct rk_clk_pll_sc *sc;
- uint32_t reg;
sc = clknode_get_softc(clk);
-
- if (sc->normal_mode) {
- /* Setting to normal mode */
- reg = RK3399_CLK_PLL_MODE_NORMAL << RK3399_CLK_PLL_MODE_SHIFT;
- reg |= RK3399_CLK_PLL_MODE_MASK << RK_CLK_PLL_MASK_SHIFT;
- WRITE4(clk, sc->base_offset + RK3399_CLK_PLL_MODE_OFFSET,
- reg | RK3399_CLK_PLL_WRITE_MASK);
- }
-
clknode_init_parent_idx(clk, 0);
return (0);
@@ -549,7 +537,6 @@ rk3399_clk_pll_register(struct clkdom *clkdom, struct
sc->flags = clkdef->flags;
sc->rates = clkdef->rates;
sc->frac_rates = clkdef->frac_rates;
- sc->normal_mode = clkdef->normal_mode;
clknode_register(clkdom, clk);
Modified: stable/12/sys/arm64/rockchip/clk/rk_clk_pll.h
==============================================================================
--- stable/12/sys/arm64/rockchip/clk/rk_clk_pll.h Wed Mar 4 21:04:57 2020 (r358645)
+++ stable/12/sys/arm64/rockchip/clk/rk_clk_pll.h Wed Mar 4 21:06:29 2020 (r358646)
@@ -57,8 +57,6 @@ struct rk_clk_pll_def {
struct rk_clk_pll_rate *rates;
struct rk_clk_pll_rate *frac_rates;
-
- bool normal_mode;
};
#define RK_CLK_PLL_HAVE_GATE 0x1
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