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[2620:137:e000::1:20]) by mx.google.com with ESMTP id f21-20020a170906391500b00997bd26a559si2649143eje.881.2023.07.21.14.27.07; Fri, 21 Jul 2023 14:27:31 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231264AbjGUVOA (ORCPT + 99 others); Fri, 21 Jul 2023 17:14:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230128AbjGUVNr (ORCPT ); Fri, 21 Jul 2023 17:13:47 -0400 Received: from mx.skole.hr (mx2.hosting.skole.hr [161.53.165.186]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2F01B359F; Fri, 21 Jul 2023 14:13:16 -0700 (PDT) Received: from mx2.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id DF505880BF; Fri, 21 Jul 2023 23:06:12 +0200 (CEST) From: =?utf-8?q?Duje_Mihanovi=C4=87?= To: Michael Turquette , Stephen Boyd , =?utf-8?q?Duje_Mihanovi=C4=87?= , linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, afaerber@suse.com Subject: [PATCH 04/10] clk: mmp: Add Marvell PXA1908 clock driver Date: Fri, 21 Jul 2023 22:37:46 +0200 Message-ID: <20230721210042.21535-5-duje.mihanovic@skole.hr> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230721210042.21535-1-duje.mihanovic@skole.hr> References: <20230721210042.21535-1-duje.mihanovic@skole.hr> MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772067070424767931 X-GMAIL-MSGID: 1772067070424767931 Add driver for Marvell PXA1908 clock controller blocks. The SoC has numerous clock controller blocks, currently supporting APBC, APBCP, MPMU and APMU. Signed-off-by: Duje Mihanović --- drivers/clk/mmp/Makefile | 2 +- drivers/clk/mmp/clk-of-pxa1908.c | 282 +++++++++++++++++++++++++++++++ 2 files changed, 283 insertions(+), 1 deletion(-) create mode 100644 drivers/clk/mmp/clk-of-pxa1908.c diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index cbcc2f8430a2..feacddb28fc4 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -15,4 +15,4 @@ obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o obj-$(CONFIG_CPU_MMP2) += clk-mmp2.o -obj-y += clk-of-pxa1928.o +obj-$(CONFIG_ARCH_MMP) += clk-of-pxa1928.o clk-of-pxa1908.o diff --git a/drivers/clk/mmp/clk-of-pxa1908.c b/drivers/clk/mmp/clk-of-pxa1908.c new file mode 100644 index 000000000000..58b3beca7b02 --- /dev/null +++ b/drivers/clk/mmp/clk-of-pxa1908.c @@ -0,0 +1,282 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include + +#include + +#include "clk.h" + +#define APBC_INDEX_TO_OFFSET(n) ((n - 1) * 4) + +#define APMU_CLK_GATE_CTRL 0x40 +#define MPMU_UART_PLL 0x14 + +struct pxa1908_clk_unit { + struct mmp_clk_unit unit; + void __iomem *mpmu_base; + void __iomem *apmu_base; + void __iomem *apbc_base; + void __iomem *apbcp_base; + void __iomem *apbs_base; + void __iomem *ciu_base; +}; + +static struct mmp_param_fixed_rate_clk fixed_rate_clks[] = { + {PXA1908_CLK_CLK32, "clk32", NULL, 0, 32768}, + {PXA1908_CLK_VCTCXO, "vctcxo", NULL, 0, 26000000}, + {PXA1908_CLK_PLL1_624, "pll1_624", NULL, 0, 624000000}, + {PXA1908_CLK_PLL1_416, "pll1_416", NULL, 0, 416000000}, + {PXA1908_CLK_PLL1_499, "pll1_499", NULL, 0, 499000000}, + {PXA1908_CLK_PLL1_832, "pll1_832", NULL, 0, 832000000}, + {PXA1908_CLK_PLL1_1248, "pll1_1248", NULL, 0, 1248000000}, +}; + +static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = { + {PXA1908_CLK_PLL1_D2, "pll1_d2", "pll1_624", 1, 2, 0}, + {PXA1908_CLK_PLL1_D4, "pll1_d4", "pll1_d2", 1, 2, 0}, + {PXA1908_CLK_PLL1_D6, "pll1_d6", "pll1_d2", 1, 3, 0}, + {PXA1908_CLK_PLL1_D8, "pll1_d8", "pll1_d4", 1, 2, 0}, + {PXA1908_CLK_PLL1_D12, "pll1_d12", "pll1_d6", 1, 2, 0}, + {PXA1908_CLK_PLL1_D13, "pll1_d13", "pll1_624", 1, 13, 0}, + {PXA1908_CLK_PLL1_D16, "pll1_d16", "pll1_d8", 1, 2, 0}, + {PXA1908_CLK_PLL1_D24, "pll1_d24", "pll1_d12", 1, 2, 0}, + {PXA1908_CLK_PLL1_D48, "pll1_d48", "pll1_d24", 1, 2, 0}, + {PXA1908_CLK_PLL1_D96, "pll1_d96", "pll1_d48", 1, 2, 0}, + {PXA1908_CLK_PLL1_32, "pll1_32", "pll1_d13", 2, 3, 0}, + {PXA1908_CLK_PLL1_208, "pll1_208", "pll1_d2", 2, 3, 0}, + {PXA1908_CLK_PLL1_117, "pll1_117", "pll1_624", 3, 16, 0}, +}; + +static struct mmp_clk_factor_masks uart_factor_masks = { + .factor = 2, + .num_mask = 0x1fff, + .den_mask = 0x1fff, + .num_shift = 16, + .den_shift = 0, +}; + +static struct mmp_clk_factor_tbl uart_factor_tbl[] = { + {.num = 8125, .den = 1536}, /* 14.745MHz */ +}; + +static DEFINE_SPINLOCK(pll1_lock); +static struct mmp_param_general_gate_clk pll1_gate_clks[] = { + {PXA1908_CLK_PLL1_D2_GATE, "pll1_d2_gate", "pll1_d2", 0, APMU_CLK_GATE_CTRL, 29, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_416_GATE, "pll1_416_gate", "pll1_416", 0, APMU_CLK_GATE_CTRL, 27, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_624_GATE, "pll1_624_gate", "pll1_624", 0, APMU_CLK_GATE_CTRL, 26, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_832_GATE, "pll1_832_gate", "pll1_832", 0, APMU_CLK_GATE_CTRL, 30, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_1248_GATE, "pll1_1248_gate", "pll1_1248", 0, APMU_CLK_GATE_CTRL, 28, 0, &pll1_lock}, +}; + +static void pxa1908_pll_init(struct pxa1908_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_fixed_rate_clks(unit, fixed_rate_clks, + ARRAY_SIZE(fixed_rate_clks)); + + mmp_register_fixed_factor_clks(unit, fixed_factor_clks, + ARRAY_SIZE(fixed_factor_clks)); + + mmp_clk_register_factor("uart_pll", "pll1_d4", + CLK_SET_RATE_PARENT, + pxa_unit->mpmu_base + MPMU_UART_PLL, + &uart_factor_masks, uart_factor_tbl, + ARRAY_SIZE(uart_factor_tbl), NULL); + +} + +static DEFINE_SPINLOCK(pwm0_lock); +static DEFINE_SPINLOCK(pwm2_lock); + +static DEFINE_SPINLOCK(uart0_lock); +static DEFINE_SPINLOCK(uart1_lock); +static DEFINE_SPINLOCK(uart2_lock); + +static const char * const uart_parent_names[] = {"pll1_117", "uart_pll"}; +static const char * const ssp_parent_names[] = {"pll1_d16", "pll1_d48", "pll1_d24", "pll1_d12"}; + +static struct mmp_param_gate_clk apbc_gate_clks[] = { + {PXA1908_CLK_TWSI0, "twsi0_clk", "pll1_32", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_TWSI0), 0x7, 3, 0, 0, NULL}, + {PXA1908_CLK_TWSI1, "twsi1_clk", "pll1_32", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_TWSI1), 0x7, 3, 0, 0, NULL}, + {PXA1908_CLK_TWSI3, "twsi3_clk", "pll1_32", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_TWSI3), 0x7, 3, 0, 0, NULL}, + {PXA1908_CLK_GPIO, "gpio_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_GPIO), 0x7, 3, 0, 0, NULL}, + {PXA1908_CLK_KPC, "kpc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_KPC), 0x7, 3, 0, MMP_CLK_GATE_NEED_DELAY, NULL}, + {PXA1908_CLK_RTC, "rtc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_RTC), 0x87, 0x83, 0, MMP_CLK_GATE_NEED_DELAY, NULL}, + {PXA1908_CLK_PWM0, "pwm0_clk", "pwm01_apb_share", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_PWM0), 0x2, 2, 0, 0, &pwm0_lock}, + {PXA1908_CLK_PWM1, "pwm1_clk", "pwm01_apb_share", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_PWM1), 0x6, 2, 0, 0, NULL}, + {PXA1908_CLK_PWM2, "pwm2_clk", "pwm23_apb_share", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_PWM2), 0x2, 2, 0, 0, NULL}, + {PXA1908_CLK_PWM3, "pwm3_clk", "pwm23_apb_share", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_PWM3), 0x6, 2, 0, 0, NULL}, + {PXA1908_CLK_UART0, "uart0_clk", "uart0_mux", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_UART0), 0x7, 3, 0, 0, &uart0_lock}, + {PXA1908_CLK_UART1, "uart1_clk", "uart1_mux", CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_UART1), 0x7, 3, 0, 0, &uart1_lock}, +}; + +static struct mmp_param_mux_clk apbc_mux_clks[] = { + {0, "uart0_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_UART0), 4, 3, 0, &uart0_lock}, + {0, "uart1_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_INDEX_TO_OFFSET(PXA1908_CLK_UART1), 4, 3, 0, &uart1_lock}, + {0, "ssp0_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), 0, APBC_INDEX_TO_OFFSET(PXA1908_CLK_SSP0), 4, 3, 0, NULL}, + {0, "ssp2_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), 0, APBC_INDEX_TO_OFFSET(PXA1908_CLK_SSP2), 4, 3, 0, NULL}, +}; + +static void pxa1908_apb_periph_clk_init(struct pxa1908_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_clk_register_gate(NULL, "pwm01_apb_share", "pll1_d48", + CLK_SET_RATE_PARENT, + pxa_unit->apbc_base + PXA1908_CLK_PWM0 * 4, + 0x5, 1, 0, 0, &pwm0_lock); + mmp_clk_register_gate(NULL, "pwm23_apb_share", "pll1_d48", + CLK_SET_RATE_PARENT, + pxa_unit->apbc_base + PXA1908_CLK_PWM2 * 4, + 0x5, 1, 0, 0, &pwm2_lock); + mmp_register_mux_clks(unit, apbc_mux_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_mux_clks)); + mmp_register_gate_clks(unit, apbc_gate_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_gate_clks)); +} + +static struct mmp_param_gate_clk apbcp_gate_clks[] = { + {PXA1908_CLK_UART2, "uart2_clk", "uart2_mux", CLK_SET_RATE_PARENT, PXA1908_CLK_UART2 * 4, 0x7, 0x3, 0x0, 0, &uart2_lock}, + {PXA1908_CLK_TWSI2, "twsi2_clk", "pll1_32", CLK_SET_RATE_PARENT, PXA1908_CLK_TWSI2 * 4, 0x7, 0x3, 0x0, 0, NULL}, + {PXA1908_CLK_AICER, "ripc_clk", NULL, 0, PXA1908_CLK_AICER * 4, 0x7, 0x2, 0x0, 0, NULL}, +}; + +static struct mmp_param_mux_clk apbcp_mux_clks[] = { + {0, "uart2_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, PXA1908_CLK_UART2 * 4, 4, 3, 0, &uart2_lock}, +}; + +static void pxa1908_apb_p_periph_clk_init(struct pxa1908_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_mux_clks(unit, apbcp_mux_clks, pxa_unit->apbcp_base, + ARRAY_SIZE(apbcp_mux_clks)); + mmp_register_gate_clks(unit, apbcp_gate_clks, pxa_unit->apbcp_base, + ARRAY_SIZE(apbcp_gate_clks)); +} + +static DEFINE_SPINLOCK(sdh0_lock); +static DEFINE_SPINLOCK(sdh1_lock); +static DEFINE_SPINLOCK(sdh2_lock); + +static const char * const sdh_parent_names[] = {"pll1_416", "pll1_624"}; + +static struct mmp_clk_mix_config sdh_mix_config = { + .reg_info = DEFINE_MIX_REG_INFO(3, 8, 2, 6, 11), +}; + +static struct mmp_param_gate_clk apmu_gate_clks[] = { + {PXA1908_CLK_USB, "usb_clk", NULL, 0, PXA1908_CLK_USB * 4, 0x9, 0x9, 0x1, 0, NULL}, + {PXA1908_CLK_SDH0, "sdh0_clk", "sdh0_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, PXA1908_CLK_SDH0 * 4, 0x12, 0x12, 0x0, 0, &sdh0_lock}, + {PXA1908_CLK_SDH1, "sdh1_clk", "sdh1_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, PXA1908_CLK_SDH1 * 4, 0x12, 0x12, 0x0, 0, &sdh1_lock}, + {PXA1908_CLK_SDH2, "sdh2_clk", "sdh2_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, PXA1908_CLK_SDH2 * 4, 0x12, 0x12, 0x0, 0, &sdh2_lock} +}; + +static void pxa1908_axi_periph_clk_init(struct pxa1908_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_general_gate_clks(unit, pll1_gate_clks, + pxa_unit->apmu_base, ARRAY_SIZE(pll1_gate_clks)); + + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->apmu_base + PXA1908_CLK_SDH0 * 4; + mmp_clk_register_mix(NULL, "sdh0_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh0_lock); + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->apmu_base + PXA1908_CLK_SDH1 * 4; + mmp_clk_register_mix(NULL, "sdh1_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh1_lock); + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->apmu_base + PXA1908_CLK_SDH2 * 4; + mmp_clk_register_mix(NULL, "sdh2_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh2_lock); + + mmp_register_gate_clks(unit, apmu_gate_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_gate_clks)); +} + +static void __init pxa1908_apbc_clk_init(struct device_node *np) +{ + struct pxa1908_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->apbc_base = of_iomap(np, 0); + if (!pxa_unit->apbc_base) { + pr_err("failed to map apbc registers\n"); + kfree(pxa_unit); + return; + } + + mmp_clk_init(np, &pxa_unit->unit, PXA1908_APBC_NR_CLKS); + + pxa1908_apb_periph_clk_init(pxa_unit); +} +CLK_OF_DECLARE(pxa1908_apbc, "marvell,pxa1908-apbc", pxa1908_apbc_clk_init); + +static void __init pxa1908_apbcp_clk_init(struct device_node *np) +{ + struct pxa1908_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->apbcp_base = of_iomap(np, 0); + if (!pxa_unit->apbcp_base) { + pr_err("failed to map apbcp registers\n"); + kfree(pxa_unit); + return; + } + + mmp_clk_init(np, &pxa_unit->unit, PXA1908_APBCP_NR_CLKS); + + pxa1908_apb_p_periph_clk_init(pxa_unit); +} +CLK_OF_DECLARE(pxa1908_apbcp, "marvell,pxa1908-apbcp", pxa1908_apbcp_clk_init); + +static void __init pxa1908_mpmu_clk_init(struct device_node *np) +{ + struct pxa1908_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->mpmu_base = of_iomap(np, 0); + if (!pxa_unit->mpmu_base) { + pr_err("failed to map mpmu registers\n"); + kfree(pxa_unit); + return; + } + + mmp_clk_init(np, &pxa_unit->unit, PXA1908_MPMU_NR_CLKS); + + pxa1908_pll_init(pxa_unit); +} +CLK_OF_DECLARE(pxa1908_mpmu, "marvell,pxa1908-mpmu", pxa1908_mpmu_clk_init); + +static void __init pxa1908_apmu_clk_init(struct device_node *np) +{ + struct pxa1908_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->apmu_base = of_iomap(np, 0); + if (!pxa_unit->apmu_base) { + pr_err("failed to map apmu registers\n"); + kfree(pxa_unit); + return; + } + + mmp_clk_init(np, &pxa_unit->unit, PXA1908_APMU_NR_CLKS); + + pxa1908_axi_periph_clk_init(pxa_unit); +} +CLK_OF_DECLARE(pxa1908_apmu, "marvell,pxa1908-apmu", pxa1908_apmu_clk_init);