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clk: renesas: r9a09g047: Add support for xspi mux and divider

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The mux smux2_xspi_clk{0,1} used for selecting spi and spix2 clocks and
pllcm33_xspi divider to select different clock rates. Add support for
both.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250424081400.135028-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Biju Das
2025-04-24 09:13:55 +01:00
committed by Geert Uytterhoeven
parent d4da08ea37
commit 38a7eb9119
2 changed files with 33 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/clk/renesas/r9a09g047-cpg.c
View File

@@ -16,7 +16,7 @@
enum clk_ids {
/* Core Clock Outputs exported to DT */
LAST_DT_CORE_CLK = R9A09G047_IOTOP_0_SHCLK,
LAST_DT_CORE_CLK = R9A09G047_GBETH_1_CLK_PTP_REF_I,
/* External Input Clocks */
CLK_AUDIO_EXTAL,
@@ -31,7 +31,13 @@ enum clk_ids {
CLK_PLLVDO,
/* Internal Core Clocks */
CLK_PLLCM33_DIV3,
CLK_PLLCM33_DIV4,
CLK_PLLCM33_DIV5,
CLK_PLLCM33_DIV16,
CLK_SMUX2_XSPI_CLK0,
CLK_SMUX2_XSPI_CLK1,
CLK_PLLCM33_XSPI,
CLK_PLLCLN_DIV2,
CLK_PLLCLN_DIV8,
CLK_PLLCLN_DIV16,
@@ -61,6 +67,14 @@ static const struct clk_div_table dtable_2_4[] = {
{0, 0},
};
static const struct clk_div_table dtable_2_16[] = {
{0, 2},
{1, 4},
{2, 8},
{3, 16},
{0, 0},
};
static const struct clk_div_table dtable_2_64[] = {
{0, 2},
{1, 4},
@@ -70,6 +84,10 @@ static const struct clk_div_table dtable_2_64[] = {
{0, 0},
};
/* Mux clock tables */
static const char * const smux2_xspi_clk0[] = { ".pllcm33_div3", ".pllcm33_div4" };
static const char * const smux2_xspi_clk1[] = { ".smux2_xspi_clk0", ".pllcm33_div5" };
static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
/* External Clock Inputs */
DEF_INPUT("audio_extal", CLK_AUDIO_EXTAL),
@@ -84,8 +102,15 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
DEF_FIXED(".pllvdo", CLK_PLLVDO, CLK_QEXTAL, 105, 2),
/* Internal Core Clocks */
DEF_FIXED(".pllcm33_div3", CLK_PLLCM33_DIV3, CLK_PLLCM33, 1, 3),
DEF_FIXED(".pllcm33_div4", CLK_PLLCM33_DIV4, CLK_PLLCM33, 1, 4),
DEF_FIXED(".pllcm33_div5", CLK_PLLCM33_DIV5, CLK_PLLCM33, 1, 5),
DEF_FIXED(".pllcm33_div16", CLK_PLLCM33_DIV16, CLK_PLLCM33, 1, 16),
DEF_SMUX(".smux2_xspi_clk0", CLK_SMUX2_XSPI_CLK0, SSEL1_SELCTL2, smux2_xspi_clk0),
DEF_SMUX(".smux2_xspi_clk1", CLK_SMUX2_XSPI_CLK1, SSEL1_SELCTL3, smux2_xspi_clk1),
DEF_CSDIV(".pllcm33_xspi", CLK_PLLCM33_XSPI, CLK_SMUX2_XSPI_CLK1, CSDIV0_DIVCTL3,
dtable_2_16),
DEF_FIXED(".pllcln_div2", CLK_PLLCLN_DIV2, CLK_PLLCLN, 1, 2),
DEF_FIXED(".pllcln_div8", CLK_PLLCLN_DIV8, CLK_PLLCLN, 1, 8),
DEF_FIXED(".pllcln_div16", CLK_PLLCLN_DIV16, CLK_PLLCLN, 1, 16),

7
drivers/clk/renesas/rzv2h-cpg.h
View File

@@ -93,10 +93,12 @@ struct smuxed {
.width = (_width), \
})
#define CPG_SSEL1 (0x304)
#define CPG_CDDIV0 (0x400)
#define CPG_CDDIV1 (0x404)
#define CPG_CDDIV3 (0x40C)
#define CPG_CDDIV4 (0x410)
#define CPG_CSDIV0 (0x500)
#define CDDIV0_DIVCTL1 DDIV_PACK(CPG_CDDIV0, 4, 3, 1)
#define CDDIV0_DIVCTL2 DDIV_PACK(CPG_CDDIV0, 8, 3, 2)
@@ -111,6 +113,11 @@ struct smuxed {
#define CDDIV4_DIVCTL1 DDIV_PACK(CPG_CDDIV4, 4, 1, 17)
#define CDDIV4_DIVCTL2 DDIV_PACK(CPG_CDDIV4, 8, 1, 18)
#define CSDIV0_DIVCTL3 DDIV_PACK_NO_RMW(CPG_CSDIV0, 12, 2, CSDIV_NO_MON)
#define SSEL1_SELCTL2 SMUX_PACK(CPG_SSEL1, 8, 1)
#define SSEL1_SELCTL3 SMUX_PACK(CPG_SSEL1, 12, 1)
#define BUS_MSTOP_IDX_MASK GENMASK(31, 16)
#define BUS_MSTOP_BITS_MASK GENMASK(15, 0)
#define BUS_MSTOP(idx, mask) (FIELD_PREP_CONST(BUS_MSTOP_IDX_MASK, (idx)) | \