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[93.34.90.37]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-42abe62bfa0sm990037f8f.5.2025.11.06.11.59.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Nov 2025 11:59:47 -0800 (PST) From: Christian Marangi To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , Felix Fietkau , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Christian Marangi Subject: [PATCH v3 5/5] clk: en7523: add support for Airoha AN7583 clock Date: Thu, 6 Nov 2025 20:59:32 +0100 Message-ID: <20251106195935.1767696-6-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251106195935.1767696-1-ansuelsmth@gmail.com> References: <20251106195935.1767696-1-ansuelsmth@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add support for Airoha AN7583 clock and reset. Airoha AN7583 SoC have the same register address of EN7581 but implement different bits and additional base clocks. Also reset are different with the introduction of 2 dedicated MDIO line and drop of some reset lines. Signed-off-by: Christian Marangi --- drivers/clk/clk-en7523.c | 264 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 264 insertions(+) diff --git a/drivers/clk/clk-en7523.c b/drivers/clk/clk-en7523.c index d98990a157d3..7560e9dfdf3f 100644 --- a/drivers/clk/clk-en7523.c +++ b/drivers/clk/clk-en7523.c @@ -11,6 +11,7 @@ #include #include #include +#include =20 #define RST_NR_PER_BANK 32 =20 @@ -96,6 +97,14 @@ static const u32 bus7581_base[] =3D { 600000000, 5400000= 00 }; static const u32 npu7581_base[] =3D { 800000000, 750000000, 720000000, 600= 000000 }; static const u32 crypto_base[] =3D { 540000000, 480000000 }; static const u32 emmc7581_base[] =3D { 200000000, 150000000 }; +/* AN7583 */ +static const u32 gsw7583_base[] =3D { 540672000, 270336000, 400000000, 200= 000000 }; +static const u32 emi7583_base[] =3D { 540672000, 480000000, 400000000, 300= 000000 }; +static const u32 bus7583_base[] =3D { 600000000, 540672000, 480000000, 400= 000000 }; +static const u32 spi7583_base[] =3D { 100000000, 12500000 }; +static const u32 npu7583_base[] =3D { 666000000, 800000000, 720000000, 600= 000000 }; +static const u32 crypto7583_base[] =3D { 540672000, 400000000 }; +static const u32 emmc7583_base[] =3D { 150000000, 200000000 }; =20 static const struct en_clk_desc en7523_base_clks[] =3D { { @@ -298,6 +307,138 @@ static const struct en_clk_desc en7581_base_clks[] = =3D { } }; =20 +static const struct en_clk_desc an7583_base_clks[] =3D { + { + .id =3D EN7523_CLK_GSW, + .name =3D "gsw", + + .base_reg =3D REG_GSW_CLK_DIV_SEL, + .base_bits =3D 2, + .base_shift =3D 8, + .base_values =3D gsw7583_base, + .n_base_values =3D ARRAY_SIZE(gsw7583_base), + + .div_bits =3D 3, + .div_shift =3D 0, + .div_step =3D 1, + .div_offset =3D 1, + }, { + .id =3D EN7523_CLK_EMI, + .name =3D "emi", + + .base_reg =3D REG_EMI_CLK_DIV_SEL, + .base_bits =3D 2, + .base_shift =3D 8, + .base_values =3D emi7583_base, + .n_base_values =3D ARRAY_SIZE(emi7583_base), + + .div_bits =3D 3, + .div_shift =3D 0, + .div_step =3D 1, + .div_offset =3D 1, + }, { + .id =3D EN7523_CLK_BUS, + .name =3D "bus", + + .base_reg =3D REG_BUS_CLK_DIV_SEL, + .base_bits =3D 2, + .base_shift =3D 8, + .base_values =3D bus7583_base, + .n_base_values =3D ARRAY_SIZE(bus7583_base), + + .div_bits =3D 3, + .div_shift =3D 0, + .div_step =3D 1, + .div_offset =3D 1, + }, { + .id =3D EN7523_CLK_SLIC, + .name =3D "slic", + + .base_reg =3D REG_SPI_CLK_FREQ_SEL, + .base_bits =3D 1, + .base_shift =3D 0, + .base_values =3D slic_base, + .n_base_values =3D ARRAY_SIZE(slic_base), + + .div_reg =3D REG_SPI_CLK_DIV_SEL, + .div_bits =3D 5, + .div_shift =3D 24, + .div_val0 =3D 20, + .div_step =3D 2, + }, { + .id =3D EN7523_CLK_SPI, + .name =3D "spi", + + .base_reg =3D REG_SPI_CLK_FREQ_SEL, + .base_bits =3D 1, + .base_shift =3D 1, + .base_values =3D spi7583_base, + .n_base_values =3D ARRAY_SIZE(spi7583_base), + + .div_reg =3D REG_SPI_CLK_DIV_SEL, + .div_bits =3D 5, + .div_shift =3D 8, + .div_val0 =3D 40, + .div_step =3D 2, + }, { + .id =3D EN7523_CLK_NPU, + .name =3D "npu", + + .base_reg =3D REG_NPU_CLK_DIV_SEL, + .base_bits =3D 2, + .base_shift =3D 9, + .base_values =3D npu7583_base, + .n_base_values =3D ARRAY_SIZE(npu7583_base), + + .div_bits =3D 3, + .div_shift =3D 0, + .div_step =3D 1, + .div_offset =3D 1, + }, { + .id =3D EN7523_CLK_CRYPTO, + .name =3D "crypto", + + .base_reg =3D REG_CRYPTO_CLKSRC2, + .base_bits =3D 1, + .base_shift =3D 0, + .base_values =3D crypto7583_base, + .n_base_values =3D ARRAY_SIZE(crypto7583_base), + }, { + .id =3D EN7581_CLK_EMMC, + .name =3D "emmc", + + .base_reg =3D REG_CRYPTO_CLKSRC2, + .base_bits =3D 1, + .base_shift =3D 13, + .base_values =3D emmc7583_base, + .n_base_values =3D ARRAY_SIZE(emmc7583_base), + }, { + .id =3D AN7583_CLK_MDIO0, + .name =3D "mdio0", + + .base_reg =3D REG_CRYPTO_CLKSRC2, + + .base_value =3D 25000000, + + .div_bits =3D 4, + .div_shift =3D 15, + .div_step =3D 1, + .div_offset =3D 1, + }, { + .id =3D AN7583_CLK_MDIO1, + .name =3D "mdio1", + + .base_reg =3D REG_CRYPTO_CLKSRC2, + + .base_value =3D 25000000, + + .div_bits =3D 4, + .div_shift =3D 19, + .div_step =3D 1, + .div_offset =3D 1, + } +}; + static const u16 en7581_rst_ofs[] =3D { REG_RST_CTRL2, REG_RST_CTRL1, @@ -361,6 +502,60 @@ static const u16 en7581_rst_map[] =3D { [EN7581_XPON_MAC_RST] =3D RST_NR_PER_BANK + 31, }; =20 +static const u16 an7583_rst_map[] =3D { + /* RST_CTRL2 */ + [AN7583_XPON_PHY_RST] =3D 0, + [AN7583_GPON_OLT_RST] =3D 1, + [AN7583_CPU_TIMER2_RST] =3D 2, + [AN7583_HSUART_RST] =3D 3, + [AN7583_UART4_RST] =3D 4, + [AN7583_UART5_RST] =3D 5, + [AN7583_I2C2_RST] =3D 6, + [AN7583_XSI_MAC_RST] =3D 7, + [AN7583_XSI_PHY_RST] =3D 8, + [AN7583_NPU_RST] =3D 9, + [AN7583_TRNG_MSTART_RST] =3D 12, + [AN7583_DUAL_HSI0_RST] =3D 13, + [AN7583_DUAL_HSI1_RST] =3D 14, + [AN7583_DUAL_HSI0_MAC_RST] =3D 16, + [AN7583_DUAL_HSI1_MAC_RST] =3D 17, + [AN7583_XPON_XFI_RST] =3D 18, + [AN7583_WDMA_RST] =3D 19, + [AN7583_WOE0_RST] =3D 20, + [AN7583_HSDMA_RST] =3D 22, + [AN7583_TDMA_RST] =3D 24, + [AN7583_EMMC_RST] =3D 25, + [AN7583_SOE_RST] =3D 26, + [AN7583_XFP_MAC_RST] =3D 28, + [AN7583_MDIO0] =3D 30, + [AN7583_MDIO1] =3D 31, + /* RST_CTRL1 */ + [AN7583_PCM1_ZSI_ISI_RST] =3D RST_NR_PER_BANK + 0, + [AN7583_FE_PDMA_RST] =3D RST_NR_PER_BANK + 1, + [AN7583_FE_QDMA_RST] =3D RST_NR_PER_BANK + 2, + [AN7583_PCM_SPIWP_RST] =3D RST_NR_PER_BANK + 4, + [AN7583_CRYPTO_RST] =3D RST_NR_PER_BANK + 6, + [AN7583_TIMER_RST] =3D RST_NR_PER_BANK + 8, + [AN7583_PCM1_RST] =3D RST_NR_PER_BANK + 11, + [AN7583_UART_RST] =3D RST_NR_PER_BANK + 12, + [AN7583_GPIO_RST] =3D RST_NR_PER_BANK + 13, + [AN7583_GDMA_RST] =3D RST_NR_PER_BANK + 14, + [AN7583_I2C_MASTER_RST] =3D RST_NR_PER_BANK + 16, + [AN7583_PCM2_ZSI_ISI_RST] =3D RST_NR_PER_BANK + 17, + [AN7583_SFC_RST] =3D RST_NR_PER_BANK + 18, + [AN7583_UART2_RST] =3D RST_NR_PER_BANK + 19, + [AN7583_GDMP_RST] =3D RST_NR_PER_BANK + 20, + [AN7583_FE_RST] =3D RST_NR_PER_BANK + 21, + [AN7583_USB_HOST_P0_RST] =3D RST_NR_PER_BANK + 22, + [AN7583_GSW_RST] =3D RST_NR_PER_BANK + 23, + [AN7583_SFC2_PCM_RST] =3D RST_NR_PER_BANK + 25, + [AN7583_PCIE0_RST] =3D RST_NR_PER_BANK + 26, + [AN7583_PCIE1_RST] =3D RST_NR_PER_BANK + 27, + [AN7583_CPU_TIMER_RST] =3D RST_NR_PER_BANK + 28, + [AN7583_PCIE_HB_RST] =3D RST_NR_PER_BANK + 29, + [AN7583_XPON_MAC_RST] =3D RST_NR_PER_BANK + 31, +}; + static u32 en7523_get_base_rate(const struct en_clk_desc *desc, u32 val) { if (!desc->base_bits) @@ -698,6 +893,62 @@ static int en7581_clk_hw_init(struct platform_device *= pdev, return en7581_reset_register(&pdev->dev, clk_map); } =20 +static int an7583_reset_register(struct device *dev, struct regmap *map) +{ + struct en_rst_data *rst_data; + + rst_data =3D devm_kzalloc(dev, sizeof(*rst_data), GFP_KERNEL); + if (!rst_data) + return -ENOMEM; + + rst_data->bank_ofs =3D en7581_rst_ofs; + rst_data->idx_map =3D an7583_rst_map; + rst_data->map =3D map; + + rst_data->rcdev.nr_resets =3D ARRAY_SIZE(an7583_rst_map); + rst_data->rcdev.of_xlate =3D en7523_reset_xlate; + rst_data->rcdev.ops =3D &en7581_reset_ops; + rst_data->rcdev.of_node =3D dev->of_node; + rst_data->rcdev.of_reset_n_cells =3D 1; + rst_data->rcdev.owner =3D THIS_MODULE; + rst_data->rcdev.dev =3D dev; + + return devm_reset_controller_register(dev, &rst_data->rcdev); +} + +static int an7583_clk_hw_init(struct platform_device *pdev, + const struct en_clk_soc_data *soc_data, + struct clk_hw_onecell_data *clk_data) +{ + struct device *dev =3D &pdev->dev; + struct regmap *map, *clk_map; + void __iomem *base; + int err; + + map =3D syscon_regmap_lookup_by_phandle(dev->of_node, "airoha,chip-scu"); + if (IS_ERR(map)) + return PTR_ERR(map); + + base =3D devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + clk_map =3D devm_regmap_init_mmio(&pdev->dev, base, &en7523_clk_regmap_co= nfig); + if (IS_ERR(clk_map)) + return PTR_ERR(clk_map); + + err =3D en75xx_register_clocks(dev, soc_data, clk_data, map, clk_map); + if (err) + return err; + + regmap_clear_bits(clk_map, REG_NP_SCU_SSTR, + REG_PCIE_XSI0_SEL_MASK | REG_PCIE_XSI1_SEL_MASK); + regmap_update_bits(clk_map, REG_NP_SCU_PCIC, REG_PCIE_CTRL, + FIELD_PREP(REG_PCIE_CTRL, 3)); + + return an7583_reset_register(dev, clk_map); +} + static int en7523_clk_probe(struct platform_device *pdev) { const struct en_clk_soc_data *soc_data; @@ -746,9 +997,22 @@ static const struct en_clk_soc_data en7581_data =3D { .hw_init =3D en7581_clk_hw_init, }; =20 +static const struct en_clk_soc_data an7583_data =3D { + .base_clks =3D an7583_base_clks, + /* We increment num_clocks by 1 to account for additional PCIe clock */ + .num_clocks =3D ARRAY_SIZE(an7583_base_clks) + 1, + .pcie_ops =3D { + .is_enabled =3D en7581_pci_is_enabled, + .enable =3D en7581_pci_enable, + .disable =3D en7581_pci_disable, + }, + .hw_init =3D an7583_clk_hw_init, +}; + static const struct of_device_id of_match_clk_en7523[] =3D { { .compatible =3D "airoha,en7523-scu", .data =3D &en7523_data }, { .compatible =3D "airoha,en7581-scu", .data =3D &en7581_data }, + { .compatible =3D "airoha,an7583-scu", .data =3D &an7583_data }, { /* sentinel */ } }; =20 --=20 2.51.0