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Message-ID:
<TY3PR01MB11346E2AA632FD1EF08051BF7866FA@TY3PR01MB11346.jpnprd01.prod.outlook.com>
Date: Thu, 5 Jun 2025 08:41:56 +0000
From: Biju Das <biju.das.jz@...renesas.com>
To: John Madieu <john.madieu.xa@...renesas.com>, Prabhakar Mahadev Lad
<prabhakar.mahadev-lad.rj@...renesas.com>, "andrew+netdev@...n.ch"
<andrew+netdev@...n.ch>, "davem@...emloft.net" <davem@...emloft.net>,
"edumazet@...gle.com" <edumazet@...gle.com>, "kuba@...nel.org"
<kuba@...nel.org>, "pabeni@...hat.com" <pabeni@...hat.com>, "robh@...nel.org"
<robh@...nel.org>, "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
"conor+dt@...nel.org" <conor+dt@...nel.org>, "geert+renesas@...der.be"
<geert+renesas@...der.be>, "magnus.damm@...il.com" <magnus.damm@...il.com>
CC: "john.madieu@...il.com" <john.madieu@...il.com>, "netdev@...r.kernel.org"
<netdev@...r.kernel.org>, "linux-renesas-soc@...r.kernel.org"
<linux-renesas-soc@...r.kernel.org>, "devicetree@...r.kernel.org"
<devicetree@...r.kernel.org>, "linux-kernel@...r.kernel.org"
<linux-kernel@...r.kernel.org>, John Madieu <john.madieu.xa@...renesas.com>
Subject: RE: [PATCH 1/4] clk: renesas: r9a09g047: Add clock and reset signals
for the GBETH IPs
Hi John,
Thanks for the patch.
> -----Original Message-----
> From: John Madieu <john.madieu.xa@...renesas.com>
> Sent: 04 June 2025 07:52
> Subject: [PATCH 1/4] clk: renesas: r9a09g047: Add clock and reset signals for the GBETH IPs
>
> Add clock and reset entries for the Gigabit Ethernet Interfaces (GBETH 0-1) IPs found on the RZ/G3E
> SoC. This includes various PLLs, dividers, and mux clocks needed by these two GBETH IPs.
>
> Signed-off-by: John Madieu <john.madieu.xa@...renesas.com>
Reviewed-by: Biju Das <biju.das.jz@...renesas.com>
Tested-by: Biju Das <biju.das.jz@...renesas.com>
Cheers,
biju
> ---
> drivers/clk/renesas/r9a09g047-cpg.c | 64 +++++++++++++++++++++++++++++
> 1 file changed, 64 insertions(+)
>
> diff --git a/drivers/clk/renesas/r9a09g047-cpg.c b/drivers/clk/renesas/r9a09g047-cpg.c
> index 21699999cedd..21352beed3a6 100644
> --- a/drivers/clk/renesas/r9a09g047-cpg.c
> +++ b/drivers/clk/renesas/r9a09g047-cpg.c
> @@ -29,6 +29,7 @@ enum clk_ids {
> CLK_PLLDTY,
> CLK_PLLCA55,
> CLK_PLLVDO,
> + CLK_PLLETH,
>
> /* Internal Core Clocks */
> CLK_PLLCM33_DIV3,
> @@ -46,6 +47,15 @@ enum clk_ids {
> CLK_PLLDTY_ACPU,
> CLK_PLLDTY_ACPU_DIV2,
> CLK_PLLDTY_ACPU_DIV4,
> + CLK_PLLDTY_DIV8,
> + CLK_PLLETH_DIV_250_FIX,
> + CLK_PLLETH_DIV_125_FIX,
> + CLK_CSDIV_PLLETH_GBE0,
> + CLK_CSDIV_PLLETH_GBE1,
> + CLK_SMUX2_GBE0_TXCLK,
> + CLK_SMUX2_GBE0_RXCLK,
> + CLK_SMUX2_GBE1_TXCLK,
> + CLK_SMUX2_GBE1_RXCLK,
> CLK_PLLDTY_DIV16,
> CLK_PLLVDO_CRU0,
> CLK_PLLVDO_GPU,
> @@ -85,7 +95,18 @@ static const struct clk_div_table dtable_2_64[] = {
> {0, 0},
> };
>
> +static const struct clk_div_table dtable_2_100[] = {
> + {0, 2},
> + {1, 10},
> + {2, 100},
> + {0, 0},
> +};
> +
> /* Mux clock tables */
> +static const char * const smux2_gbe0_rxclk[] = { ".plleth_gbe0",
> +"et0_rxc_rx_clk" }; static const char * const smux2_gbe0_txclk[] = {
> +".plleth_gbe0", "et0_txc_tx_clk" }; static const char * const
> +smux2_gbe1_rxclk[] = { ".plleth_gbe1", "et1-rxc-rx_clk" }; static const
> +char * const smux2_gbe1_txclk[] = { ".plleth_gbe1", "et1-txc-tx_clk" };
> static const char * const smux2_xspi_clk0[] = { ".pllcm33_div3", ".pllcm33_div4" }; static const
> char * const smux2_xspi_clk1[] = { ".smux2_xspi_clk0", ".pllcm33_div5" };
>
> @@ -100,6 +121,7 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
> DEF_FIXED(".pllcln", CLK_PLLCLN, CLK_QEXTAL, 200, 3),
> DEF_FIXED(".plldty", CLK_PLLDTY, CLK_QEXTAL, 200, 3),
> DEF_PLL(".pllca55", CLK_PLLCA55, CLK_QEXTAL, PLLCA55),
> + DEF_FIXED(".plleth", CLK_PLLETH, CLK_QEXTAL, 125, 3),
> DEF_FIXED(".pllvdo", CLK_PLLVDO, CLK_QEXTAL, 105, 2),
>
> /* Internal Core Clocks */
> @@ -122,6 +144,18 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
> DEF_DDIV(".plldty_acpu", CLK_PLLDTY_ACPU, CLK_PLLDTY, CDDIV0_DIVCTL2, dtable_2_64),
> DEF_FIXED(".plldty_acpu_div2", CLK_PLLDTY_ACPU_DIV2, CLK_PLLDTY_ACPU, 1, 2),
> DEF_FIXED(".plldty_acpu_div4", CLK_PLLDTY_ACPU_DIV4, CLK_PLLDTY_ACPU, 1, 4),
> + DEF_FIXED(".plldty_div8", CLK_PLLDTY_DIV8, CLK_PLLDTY, 1, 8),
> +
> + DEF_FIXED(".plleth_250_fix", CLK_PLLETH_DIV_250_FIX, CLK_PLLETH, 1, 4),
> + DEF_FIXED(".plleth_125_fix", CLK_PLLETH_DIV_125_FIX, CLK_PLLETH_DIV_250_FIX, 1, 2),
> + DEF_CSDIV(".plleth_gbe0", CLK_CSDIV_PLLETH_GBE0, CLK_PLLETH_DIV_250_FIX,
> + CSDIV0_DIVCTL0, dtable_2_100),
> + DEF_CSDIV(".plleth_gbe1", CLK_CSDIV_PLLETH_GBE1, CLK_PLLETH_DIV_250_FIX,
> + CSDIV0_DIVCTL1, dtable_2_100),
> + DEF_SMUX(".smux2_gbe0_txclk", CLK_SMUX2_GBE0_TXCLK, SSEL0_SELCTL2, smux2_gbe0_txclk),
> + DEF_SMUX(".smux2_gbe0_rxclk", CLK_SMUX2_GBE0_RXCLK, SSEL0_SELCTL3, smux2_gbe0_rxclk),
> + DEF_SMUX(".smux2_gbe1_txclk", CLK_SMUX2_GBE1_TXCLK, SSEL1_SELCTL0, smux2_gbe1_txclk),
> + DEF_SMUX(".smux2_gbe1_rxclk", CLK_SMUX2_GBE1_RXCLK, SSEL1_SELCTL1,
> +smux2_gbe1_rxclk),
> DEF_FIXED(".plldty_div16", CLK_PLLDTY_DIV16, CLK_PLLDTY, 1, 16),
>
> DEF_DDIV(".pllvdo_cru0", CLK_PLLVDO_CRU0, CLK_PLLVDO, CDDIV3_DIVCTL3, dtable_2_4), @@ -139,6
> +173,10 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
> CDDIV1_DIVCTL3, dtable_1_8),
> DEF_FIXED("iotop_0_shclk", R9A09G047_IOTOP_0_SHCLK, CLK_PLLCM33_DIV16, 1, 1),
> DEF_FIXED("spi_clk_spi", R9A09G047_SPI_CLK_SPI, CLK_PLLCM33_XSPI, 1, 2),
> + DEF_FIXED("gbeth_0_clk_ptp_ref_i", R9A09G047_GBETH_0_CLK_PTP_REF_I,
> + CLK_PLLETH_DIV_125_FIX, 1, 1),
> + DEF_FIXED("gbeth_1_clk_ptp_ref_i", R9A09G047_GBETH_1_CLK_PTP_REF_I,
> + CLK_PLLETH_DIV_125_FIX, 1, 1),
> };
>
> static const struct rzv2h_mod_clk r9a09g047_mod_clks[] __initconst = { @@ -214,6 +252,30 @@ static
> const struct rzv2h_mod_clk r9a09g047_mod_clks[] __initconst = {
> BUS_MSTOP(8, BIT(4))),
> DEF_MOD("sdhi_2_aclk", CLK_PLLDTY_ACPU_DIV4, 10, 14, 5, 14,
> BUS_MSTOP(8, BIT(4))),
> + DEF_MOD("gbeth_0_clk_tx_i", CLK_SMUX2_GBE0_TXCLK, 11, 8, 5, 24,
> + BUS_MSTOP(8, BIT(5))),
> + DEF_MOD("gbeth_0_clk_rx_i", CLK_SMUX2_GBE0_RXCLK, 11, 9, 5, 25,
> + BUS_MSTOP(8, BIT(5))),
> + DEF_MOD("gbeth_0_clk_tx_180_i", CLK_SMUX2_GBE0_TXCLK, 11, 10, 5, 26,
> + BUS_MSTOP(8, BIT(5))),
> + DEF_MOD("gbeth_0_clk_rx_180_i", CLK_SMUX2_GBE0_RXCLK, 11, 11, 5, 27,
> + BUS_MSTOP(8, BIT(5))),
> + DEF_MOD("gbeth_0_aclk_csr_i", CLK_PLLDTY_DIV8, 11, 12, 5, 28,
> + BUS_MSTOP(8, BIT(5))),
> + DEF_MOD("gbeth_0_aclk_i", CLK_PLLDTY_DIV8, 11, 13, 5, 29,
> + BUS_MSTOP(8, BIT(5))),
> + DEF_MOD("gbeth_1_clk_tx_i", CLK_SMUX2_GBE1_TXCLK, 11, 14, 5, 30,
> + BUS_MSTOP(8, BIT(6))),
> + DEF_MOD("gbeth_1_clk_rx_i", CLK_SMUX2_GBE1_RXCLK, 11, 15, 5, 31,
> + BUS_MSTOP(8, BIT(6))),
> + DEF_MOD("gbeth_1_clk_tx_180_i", CLK_SMUX2_GBE1_TXCLK, 12, 0, 6, 0,
> + BUS_MSTOP(8, BIT(6))),
> + DEF_MOD("gbeth_1_clk_rx_180_i", CLK_SMUX2_GBE1_RXCLK, 12, 1, 6, 1,
> + BUS_MSTOP(8, BIT(6))),
> + DEF_MOD("gbeth_1_aclk_csr_i", CLK_PLLDTY_DIV8, 12, 2, 6, 2,
> + BUS_MSTOP(8, BIT(6))),
> + DEF_MOD("gbeth_1_aclk_i", CLK_PLLDTY_DIV8, 12, 3, 6, 3,
> + BUS_MSTOP(8, BIT(6))),
> DEF_MOD("cru_0_aclk", CLK_PLLDTY_ACPU_DIV2, 13, 2, 6, 18,
> BUS_MSTOP(9, BIT(4))),
> DEF_MOD_NO_PM("cru_0_vclk", CLK_PLLVDO_CRU0, 13, 3, 6, 19,
> @@ -255,6 +317,8 @@ static const struct rzv2h_reset r9a09g047_resets[] __initconst = {
> DEF_RST(10, 7, 4, 24), /* SDHI_0_IXRST */
> DEF_RST(10, 8, 4, 25), /* SDHI_1_IXRST */
> DEF_RST(10, 9, 4, 26), /* SDHI_2_IXRST */
> + DEF_RST(11, 0, 5, 1), /* GBETH_0_ARESETN_I */
> + DEF_RST(11, 1, 5, 2), /* GBETH_1_ARESETN_I */
> DEF_RST(12, 5, 5, 22), /* CRU_0_PRESETN */
> DEF_RST(12, 6, 5, 23), /* CRU_0_ARESETN */
> DEF_RST(12, 7, 5, 24), /* CRU_0_S_RESETN */
> --
> 2.25.1
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