From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3AE04C10F29 for ; Mon, 9 Mar 2020 19:43:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1584424656 for ; Mon, 9 Mar 2020 19:43:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726952AbgCITnv (ORCPT ); Mon, 9 Mar 2020 15:43:51 -0400 Received: from v6.sk ([167.172.42.174]:34714 "EHLO v6.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726169AbgCITnu (ORCPT ); Mon, 9 Mar 2020 15:43:50 -0400 Received: from localhost (v6.sk [IPv6:::1]) by v6.sk (Postfix) with ESMTP id 9C1076130A; Mon, 9 Mar 2020 19:43:47 +0000 (UTC) From: Lubomir Rintel To: Stephen Boyd Cc: Michael Turquette , Rob Herring , Mark Rutland , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Lubomir Rintel Subject: [PATCH v2 12/17] clk: mmp2: add the GPU clocks Date: Mon, 9 Mar 2020 20:42:49 +0100 Message-Id: <20200309194254.29009-13-lkundrak@v3.sk> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200309194254.29009-1-lkundrak@v3.sk> References: <20200309194254.29009-1-lkundrak@v3.sk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org MMP2 has a single GC860 core while MMP3 has a GC2000 and a GC300. On both platforms there's an AXI bus interface clock that's common for all GPUs and each GPU core has a separate clock. Meaning of the relevant APMU_GPU bits were gotten from James Cameron's message and [1], the OLPC OS kernel source [2] and Marvell's MMP3 tree. [1] http://lists.laptop.org/pipermail/devel/2019-April/039053.html [2] http://dev.laptop.org/git/olpc-kernel/commit/arch/arm/mach-mmp/mmp2.c?h=arm-3.0-wip&id=8ce9f6122 Signed-off-by: Lubomir Rintel --- Changes since v1: - Added this patch drivers/clk/mmp/clk-of-mmp2.c | 61 +++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c index 310d77855f03f..208c67df482a9 100644 --- a/drivers/clk/mmp/clk-of-mmp2.c +++ b/drivers/clk/mmp/clk-of-mmp2.c @@ -56,6 +56,7 @@ #define APMU_CCIC1 0xf4 #define APMU_USBHSIC0 0xf8 #define APMU_USBHSIC1 0xfc +#define APMU_GPU 0xcc #define MPMU_FCCR 0x8 #define MPMU_POSR 0x10 @@ -245,6 +246,14 @@ static DEFINE_SPINLOCK(ccic0_lock); static DEFINE_SPINLOCK(ccic1_lock); static const char * const ccic_parent_names[] = {"pll1_2", "pll1_16", "vctcxo"}; +static DEFINE_SPINLOCK(gpu_lock); +static const char * const mmp2_gpu_gc_parent_names[] = {"pll1_2", "pll1_3", "pll2_2", "pll2_3", "pll2", "usb_pll"}; +static u32 mmp2_gpu_gc_parent_table[] = { 0x0000, 0x0040, 0x0080, 0x00c0, 0x1000, 0x1040 }; +static const char * const mmp2_gpu_bus_parent_names[] = {"pll1_4", "pll2", "pll2_2", "usb_pll"}; +static u32 mmp2_gpu_bus_parent_table[] = { 0x0000, 0x0020, 0x0030, 0x4020 }; +static const char * const mmp3_gpu_bus_parent_names[] = {"pll1_4", "pll1_6", "pll1_2", "pll2_2"}; +static const char * const mmp3_gpu_gc_parent_names[] = {"pll1", "pll2", "pll1_p", "pll2_p"}; + static struct mmp_clk_mix_config ccic0_mix_config = { .reg_info = DEFINE_MIX_REG_INFO(4, 17, 2, 6, 32), }; @@ -257,6 +266,15 @@ static struct mmp_param_mux_clk apmu_mux_clks[] = { {MMP2_CLK_DISP1_MUX, "disp1_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP1, 6, 2, 0, &disp1_lock}, }; +static struct mmp_param_mux_clk mmp3_apmu_mux_clks[] = { + {0, "gpu_bus_mux", mmp3_gpu_bus_parent_names, ARRAY_SIZE(mmp3_gpu_bus_parent_names), + CLK_SET_RATE_PARENT, APMU_GPU, 4, 2, 0, &gpu_lock}, + {0, "gpu_3d_mux", mmp3_gpu_gc_parent_names, ARRAY_SIZE(mmp3_gpu_gc_parent_names), + CLK_SET_RATE_PARENT, APMU_GPU, 6, 2, 0, &gpu_lock}, + {0, "gpu_2d_mux", mmp3_gpu_gc_parent_names, ARRAY_SIZE(mmp3_gpu_gc_parent_names), + CLK_SET_RATE_PARENT, APMU_GPU, 12, 2, 0, &gpu_lock}, +}; + static struct mmp_param_div_clk apmu_div_clks[] = { {0, "disp0_div", "disp0_mux", CLK_SET_RATE_PARENT, APMU_DISP0, 8, 4, 0, &disp0_lock}, {0, "disp0_sphy_div", "disp0_mux", CLK_SET_RATE_PARENT, APMU_DISP0, 15, 5, 0, &disp0_lock}, @@ -265,6 +283,11 @@ static struct mmp_param_div_clk apmu_div_clks[] = { {0, "ccic1_sphy_div", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 10, 5, 0, &ccic1_lock}, }; +static struct mmp_param_div_clk mmp3_apmu_div_clks[] = { + {0, "gpu_3d_div", "gpu_3d_mux", CLK_SET_RATE_PARENT, APMU_GPU, 24, 4, 0, &gpu_lock}, + {0, "gpu_2d_div", "gpu_2d_mux", CLK_SET_RATE_PARENT, APMU_GPU, 28, 4, 0, &gpu_lock}, +}; + static struct mmp_param_gate_clk apmu_gate_clks[] = { {MMP2_CLK_USB, "usb_clk", "usb_pll", 0, APMU_USB, 0x9, 0x9, 0x0, 0, &usb_lock}, {MMP2_CLK_USBHSIC0, "usbhsic0_clk", "usb_pll", 0, APMU_USBHSIC0, 0x1b, 0x1b, 0x0, 0, &usbhsic0_lock}, @@ -285,6 +308,16 @@ static struct mmp_param_gate_clk apmu_gate_clks[] = { {MMP2_CLK_CCIC1, "ccic1_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x1b, 0x1b, 0x0, 0, &ccic1_lock}, {MMP2_CLK_CCIC1_PHY, "ccic1_phy_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x24, 0x24, 0x0, 0, &ccic1_lock}, {MMP2_CLK_CCIC1_SPHY, "ccic1_sphy_clk", "ccic1_sphy_div", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x300, 0x300, 0x0, 0, &ccic1_lock}, + {MMP2_CLK_GPU_BUS, "gpu_bus_clk", "gpu_bus_mux", CLK_SET_RATE_PARENT, APMU_GPU, 0xa, 0xa, 0x0, MMP_CLK_GATE_NEED_DELAY, &gpu_lock}, +}; + +static struct mmp_param_gate_clk mmp2_apmu_gate_clks[] = { + {MMP2_CLK_GPU_3D, "gpu_3d_clk", "gpu_3d_mux", CLK_SET_RATE_PARENT, APMU_GPU, 0x5, 0x5, 0x0, MMP_CLK_GATE_NEED_DELAY, &gpu_lock}, +}; + +static struct mmp_param_gate_clk mmp3_apmu_gate_clks[] = { + {MMP3_CLK_GPU_3D, "gpu_3d_clk", "gpu_3d_div", CLK_SET_RATE_PARENT, APMU_GPU, 0x5, 0x5, 0x0, MMP_CLK_GATE_NEED_DELAY, &gpu_lock}, + {MMP3_CLK_GPU_2D, "gpu_2d_clk", "gpu_2d_div", CLK_SET_RATE_PARENT, APMU_GPU, 0x1c0000, 0x1c0000, 0x0, MMP_CLK_GATE_NEED_DELAY, &gpu_lock}, }; static void mmp2_axi_periph_clk_init(struct mmp2_clk_unit *pxa_unit) @@ -320,6 +353,34 @@ static void mmp2_axi_periph_clk_init(struct mmp2_clk_unit *pxa_unit) mmp_register_gate_clks(unit, apmu_gate_clks, pxa_unit->apmu_base, ARRAY_SIZE(apmu_gate_clks)); + + if (pxa_unit->model == CLK_MODEL_MMP3) { + mmp_register_mux_clks(unit, mmp3_apmu_mux_clks, pxa_unit->apmu_base, + ARRAY_SIZE(mmp3_apmu_mux_clks)); + + mmp_register_div_clks(unit, mmp3_apmu_div_clks, pxa_unit->apmu_base, + ARRAY_SIZE(mmp3_apmu_div_clks)); + + mmp_register_gate_clks(unit, mmp3_apmu_gate_clks, pxa_unit->apmu_base, + ARRAY_SIZE(mmp3_apmu_gate_clks)); + } else { + clk_register_mux_table(NULL, "gpu_3d_mux", mmp2_gpu_gc_parent_names, + ARRAY_SIZE(mmp2_gpu_gc_parent_names), + CLK_SET_RATE_PARENT, + pxa_unit->apmu_base + APMU_GPU, + 0, 0x10c0, 0, + mmp2_gpu_gc_parent_table, &gpu_lock); + + clk_register_mux_table(NULL, "gpu_bus_mux", mmp2_gpu_bus_parent_names, + ARRAY_SIZE(mmp2_gpu_bus_parent_names), + CLK_SET_RATE_PARENT, + pxa_unit->apmu_base + APMU_GPU, + 0, 0x4030, 0, + mmp2_gpu_bus_parent_table, &gpu_lock); + + mmp_register_gate_clks(unit, mmp2_apmu_gate_clks, pxa_unit->apmu_base, + ARRAY_SIZE(mmp2_apmu_gate_clks)); + } } static void mmp2_clk_reset_init(struct device_node *np, -- 2.25.1