From patchwork Mon Oct 5 19:55:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luc Michel X-Patchwork-Id: 1377115 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=lmichel.fr Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=lmichel.fr header.i=@lmichel.fr header.a=rsa-sha256 header.s=pharaoh header.b=Y1s7LgZJ; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4C4wdN6zrqz9sVX for ; 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bh=iR4KXb62I/k5aldm3ydk7GV+/axR6FSrHl7HyK9S/UM=; b=Y1s7LgZJPp3GnPWQmniwTosEZggQvxD+rx2k4GMEQkdqC+Q7JvdEh7bMwlvseJ5NmZ/l06 N+J+Y3pkUgkkKRKPsDeBeV0hYEOpEKjgdGek9FgluXK9ATg7td3HuNcRnJww9GmhcVF4am Dyj4BFXDNW6j9rtMh4L1cnC81gDUI1dOUmKpqIP/biUwsgrg+zwxxteYXYbOTZC4lSu9cU C1vSd2ZD7Lc8bioSLk7s1I3gpyamglSUa0Ffq2aWkUoOoe2e2ZABQqMLm578r6LXim1wO7 4Kz6Ke4EN7yzN7Bql3urPqcbS/8V46s19cKC0Dp1RplwgjHaguT29nGS/3UcEA== From: Luc Michel To: qemu-devel@nongnu.org Subject: [PATCH v2 00/15] raspi: add the bcm2835 cprman clock manager Date: Mon, 5 Oct 2020 21:55:57 +0200 Message-Id: <20201005195612.1999165-1-luc@lmichel.fr> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=lmichel.fr; s=pharaoh; t=1601927714; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding:in-reply-to: references; bh=iR4KXb62I/k5aldm3ydk7GV+/axR6FSrHl7HyK9S/UM=; 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Patches 1-3 are preliminary changes, patches 4-12 are the actual implementation. The two last patches add a clock input to the PL011 and connect it to the CPRMAN and are RFC. This series has been tested with Linux 5.4.61 (the current raspios version). It fixes the kernel Oops at boot time due to invalid UART clock value, and other warnings/errors here and there because of bad clocks or lack of CPRMAN. Here is the clock tree as seen by Linux when booted in QEMU: (/sys/kernel/debug/clk/clk_summary with some columns removed) enable prepare clock count count rate ----------------------------------------------------- otg 0 0 480000000 osc 5 5 19200000 gp2 1 1 32768 tsens 0 0 1920000 otp 0 0 4800000 timer 0 0 1000002 pllh 4 4 864000000 pllh_pix_prediv 1 1 3375000 pllh_pix 0 0 337500 pllh_aux 1 1 216000000 vec 0 0 108000000 pllh_rcal_prediv 1 1 3375000 pllh_rcal 0 0 337500 plld 3 3 2000000024 plld_dsi1 0 0 7812501 plld_dsi0 0 0 7812501 plld_per 3 3 500000006 gp1 1 1 25000000 uart 1 2 47999625 plld_core 2 2 500000006 sdram 0 0 166666668 pllc 3 3 2400000000 pllc_per 1 1 1200000000 emmc 0 0 200000000 pllc_core2 0 0 9375000 pllc_core1 0 0 9375000 pllc_core0 2 2 1200000000 vpu 1 1 700000000 aux_spi2 0 0 700000000 aux_spi1 0 0 700000000 aux_uart 0 0 700000000 peri_image 0 0 700000000 plla 2 2 2250000000 plla_ccp2 0 0 8789063 plla_dsi0 0 0 8789063 plla_core 1 1 750000000 h264 0 0 250000000 isp 0 0 250000000 dsi1p 0 0 0 dsi0p 0 0 0 dsi1e 0 0 0 dsi0e 0 0 0 cam1 0 0 0 cam0 0 0 0 dpi 0 0 0 tec 0 0 0 smi 0 0 0 slim 0 0 0 gp0 0 0 0 dft 0 0 0 aveo 0 0 0 pcm 0 0 0 pwm 0 0 0 hsm 0 0 0 It shows small differences with real hardware due other missing peripherals for which the driver turn the clock off (like tsens). Luc Michel (15): hw/core/clock: provide the VMSTATE_ARRAY_CLOCK macro hw/core/clock: trace clock values in Hz instead of ns hw/core/clock: add the clock_new helper function hw/arm/raspi: fix CPRMAN base address hw/arm/raspi: add a skeleton implementation of the CPRMAN hw/misc/bcm2835_cprman: add a PLL skeleton implementation hw/misc/bcm2835_cprman: implement PLLs behaviour hw/misc/bcm2835_cprman: add a PLL channel skeleton implementation hw/misc/bcm2835_cprman: implement PLL channels behaviour hw/misc/bcm2835_cprman: add a clock mux skeleton implementation hw/misc/bcm2835_cprman: implement clock mux behaviour hw/misc/bcm2835_cprman: add the DSI0HSCK multiplexer hw/misc/bcm2835_cprman: add sane reset values to the registers hw/char/pl011: add a clock input hw/arm/bcm2835_peripherals: connect the UART clock include/hw/arm/bcm2835_peripherals.h | 5 +- include/hw/arm/raspi_platform.h | 5 +- include/hw/char/pl011.h | 1 + include/hw/clock.h | 31 + include/hw/misc/bcm2835_cprman.h | 209 ++++ include/hw/misc/bcm2835_cprman_internals.h | 1018 ++++++++++++++++++++ hw/arm/bcm2835_peripherals.c | 15 +- hw/char/pl011.c | 45 + hw/core/clock.c | 6 +- hw/misc/bcm2835_cprman.c | 798 +++++++++++++++ hw/char/trace-events | 1 + hw/core/trace-events | 4 +- hw/misc/meson.build | 1 + hw/misc/trace-events | 5 + 14 files changed, 2132 insertions(+), 12 deletions(-) create mode 100644 include/hw/misc/bcm2835_cprman.h create mode 100644 include/hw/misc/bcm2835_cprman_internals.h create mode 100644 hw/misc/bcm2835_cprman.c