OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

clk: renesas: rcar-gen3: Parameterise Z and Z2 clock offset 

Parameterise the offset of control bits within the FRQCRC register
for Z and Z2 clocks.

This is in preparation for supporting the Z2 clock on the R-Car E3
(r8a77990) SoC which uses a different offset for control bits to
other, already, supported SoCs.

As suggested by Geert Uytterhoeven.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Simon Horman 2019-03-25 17:35:51 +01:00 committed by Geert Uytterhoeven
parent 20cc05ba04
commit 10d9ea5100
6 changed files with 13 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/clk/renesas/r8a774a1-cpg-mssr.c
View File

@ -71,8 +71,8 @@ static const struct cpg_core_clk r8a774a1_core_clks[] __initconst = {
DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32),
/* Core Clock Outputs */
DEF_GEN3_Z("z", R8A774A1_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2),
DEF_GEN3_Z("z2", R8A774A1_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2, 2),
DEF_GEN3_Z("z", R8A774A1_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2, 8),
DEF_GEN3_Z("z2", R8A774A1_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2, 2, 0),
DEF_FIXED("ztr", R8A774A1_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
DEF_FIXED("ztrd2", R8A774A1_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
DEF_FIXED("zt", R8A774A1_CLK_ZT, CLK_PLL1_DIV2, 4, 1),

4
drivers/clk/renesas/r8a7795-cpg-mssr.c
View File

@ -74,8 +74,8 @@ static struct cpg_core_clk r8a7795_core_clks[] __initdata = {
DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32),
/* Core Clock Outputs */
DEF_GEN3_Z("z", R8A7795_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2),
DEF_GEN3_Z("z2", R8A7795_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2, 2),
DEF_GEN3_Z("z", R8A7795_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2, 8),
DEF_GEN3_Z("z2", R8A7795_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2, 2, 0),
DEF_FIXED("ztr", R8A7795_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
DEF_FIXED("ztrd2", R8A7795_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
DEF_FIXED("zt", R8A7795_CLK_ZT, CLK_PLL1_DIV2, 4, 1),

4
drivers/clk/renesas/r8a7796-cpg-mssr.c
View File

@ -74,8 +74,8 @@ static const struct cpg_core_clk r8a7796_core_clks[] __initconst = {
DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32),
/* Core Clock Outputs */
DEF_GEN3_Z("z", R8A7796_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2),
DEF_GEN3_Z("z2", R8A7796_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2, 2),
DEF_GEN3_Z("z", R8A7796_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2, 8),
DEF_GEN3_Z("z2", R8A7796_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2, 2, 0),
DEF_FIXED("ztr", R8A7796_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
DEF_FIXED("ztrd2", R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
DEF_FIXED("zt", R8A7796_CLK_ZT, CLK_PLL1_DIV2, 4, 1),

2
drivers/clk/renesas/r8a77965-cpg-mssr.c
View File

@ -71,7 +71,7 @@ static const struct cpg_core_clk r8a77965_core_clks[] __initconst = {
DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32),
/* Core Clock Outputs */
DEF_GEN3_Z("z", R8A77965_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2),
DEF_GEN3_Z("z", R8A77965_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2, 8),
DEF_FIXED("ztr", R8A77965_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
DEF_FIXED("ztrd2", R8A77965_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
DEF_FIXED("zt", R8A77965_CLK_ZT, CLK_PLL1_DIV2, 4, 1),

15
drivers/clk/renesas/rcar-gen3-cpg.c
View File

@ -88,8 +88,6 @@ static void cpg_simple_notifier_register(struct raw_notifier_head *notifiers,
#define CPG_FRQCRB 0x00000004
#define CPG_FRQCRB_KICK BIT(31)
#define CPG_FRQCRC 0x000000e0
#define CPG_FRQCRC_ZFC_MASK GENMASK(12, 8)
#define CPG_FRQCRC_Z2FC_MASK GENMASK(4, 0)
struct cpg_z_clk {
struct clk_hw hw;
@ -180,8 +178,8 @@ static const struct clk_ops cpg_z_clk_ops = {
static struct clk * __init cpg_z_clk_register(const char *name,
const char *parent_name,
void __iomem *reg,
unsigned long mask,
unsigned int div)
unsigned int div,
unsigned int offset)
{
struct clk_init_data init;
struct cpg_z_clk *zclk;
@ -200,7 +198,7 @@ static struct clk * __init cpg_z_clk_register(const char *name,
zclk->reg = reg + CPG_FRQCRC;
zclk->kick_reg = reg + CPG_FRQCRB;
zclk->hw.init = &init;
zclk->mask = mask;
zclk->mask = GENMASK(offset + 4, offset);
zclk->fixed_div = div; /* PLLVCO x 1/div x SYS-CPU divider */
clk = clk_register(NULL, &zclk->hw);
@ -661,14 +659,9 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
break;
case CLK_TYPE_GEN3_Z:
return cpg_z_clk_register(core->name, __clk_get_name(parent),
base, CPG_FRQCRC_ZFC_MASK,
core->div);
case CLK_TYPE_GEN3_Z2:
return cpg_z_clk_register(core->name, __clk_get_name(parent),
base, CPG_FRQCRC_Z2FC_MASK,
core->div);
base, core->div, core->offset);
case CLK_TYPE_GEN3_OSC:
/*

4
drivers/clk/renesas/rcar-gen3-cpg.h
View File

@ -52,8 +52,8 @@ enum rcar_gen3_clk_types {
DEF_BASE(_name, _id, CLK_TYPE_GEN3_RCKSEL, \
(_parent0) << 16 | (_parent1), .div = (_div0) << 16 | (_div1))
#define DEF_GEN3_Z(_name, _id, _type, _parent, _div) \
DEF_BASE(_name, _id, _type, _parent, .div = _div)
#define DEF_GEN3_Z(_name, _id, _type, _parent, _div, _offset) \
DEF_BASE(_name, _id, _type, _parent, .div = _div, .offset = _offset)
struct rcar_gen3_cpg_pll_config {
u8 extal_div;