From patchwork Mon Feb 18 12:01:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: BALATON Zoltan X-Patchwork-Id: 1043931 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) 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=none (p=none dis=none) header.from=eik.bme.hu Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4432q71j9Sz9sBZ for ; Mon, 18 Feb 2019 23:14:24 +1100 (AEDT) Received: from localhost ([127.0.0.1]:57242 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gvhoU-00066o-3N for incoming@patchwork.ozlabs.org; Mon, 18 Feb 2019 07:14:22 -0500 Received: from eggs.gnu.org ([209.51.188.92]:34879) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gvhnj-00064F-V3 for qemu-devel@nongnu.org; Mon, 18 Feb 2019 07:13:36 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gvhne-0006cY-9g for qemu-devel@nongnu.org; Mon, 18 Feb 2019 07:13:35 -0500 Received: from zero.eik.bme.hu ([152.66.115.2]:27835) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gvhna-0006Xi-1X for qemu-devel@nongnu.org; Mon, 18 Feb 2019 07:13:27 -0500 Received: from zero.eik.bme.hu (blah.eik.bme.hu [152.66.115.182]) by localhost (Postfix) with SMTP id 8AB277456B2; Mon, 18 Feb 2019 13:13:23 +0100 (CET) Received: by zero.eik.bme.hu (Postfix, from userid 432) id 05FAB74569A; Mon, 18 Feb 2019 13:13:22 +0100 (CET) Message-Id: In-Reply-To: References: From: BALATON Zoltan Date: Mon, 18 Feb 2019 13:01:41 +0100 To: qemu-devel@nongnu.org X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 152.66.115.2 Subject: [Qemu-devel] [PATCH v2 3/3] mips_fulong2e: Dynamically generate SPD EEPROM data X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Huacai Chen , philmd@redhat.com, Aleksandar Markovic , Aurelien Jarno Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The machine comes with 256M memory module by default but it's upgradable so it could have different memory size. There was a TODO comment to replace static SPD EEPROM data with dynamically generated one to support this. Now that we have a function for that, it's easy to do. Although this would allow larger RAM sizes, the peculiar memory map of the machine may need some special handling to map it as low and high memory. Because I don't know what the correct place would be for highmem, I've left memory size fixed at 256M for now and TODO is moved there instead. Signed-off-by: BALATON Zoltan Reviewed-by: Philippe Mathieu-Daudé Tested-by: Philippe Mathieu-Daudé --- hw/mips/mips_fulong2e.c | 31 +++++++++++++------------------ 1 file changed, 13 insertions(+), 18 deletions(-) diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c index 10e6ed585a..eec6fd02c8 100644 --- a/hw/mips/mips_fulong2e.c +++ b/hw/mips/mips_fulong2e.c @@ -214,20 +214,6 @@ static void main_cpu_reset(void *opaque) } } -static const uint8_t eeprom_spd[0x80] = { - 0x80,0x08,0x07,0x0d,0x09,0x02,0x40,0x00,0x04,0x70, - 0x70,0x00,0x82,0x10,0x00,0x01,0x0e,0x04,0x0c,0x01, - 0x02,0x20,0x80,0x75,0x70,0x00,0x00,0x50,0x3c,0x50, - 0x2d,0x20,0xb0,0xb0,0x50,0x50,0x00,0x00,0x00,0x00, - 0x00,0x41,0x48,0x3c,0x32,0x75,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x9c,0x7b,0x07,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x48,0x42,0x35,0x34,0x41,0x32, - 0x35,0x36,0x38,0x4b,0x4e,0x2d,0x41,0x37,0x35,0x42, - 0x20,0x30,0x20 -}; - static void vt82c686b_southbridge_init(PCIBus *pci_bus, int slot, qemu_irq intc, I2CBus **i2c_bus, ISABus **p_isa_bus) { @@ -284,7 +270,6 @@ static void network_init (PCIBus *pci_bus) static void mips_fulong2e_init(MachineState *machine) { - ram_addr_t ram_size = machine->ram_size; const char *kernel_filename = machine->kernel_filename; const char *kernel_cmdline = machine->kernel_cmdline; const char *initrd_filename = machine->initrd_filename; @@ -292,7 +277,10 @@ static void mips_fulong2e_init(MachineState *machine) MemoryRegion *address_space_mem = get_system_memory(); MemoryRegion *ram = g_new(MemoryRegion, 1); MemoryRegion *bios = g_new(MemoryRegion, 1); + ram_addr_t ram_size = machine->ram_size; long bios_size; + uint8_t *spd_data; + Error *err = NULL; int64_t kernel_entry; PCIBus *pci_bus; ISABus *isa_bus; @@ -306,7 +294,7 @@ static void mips_fulong2e_init(MachineState *machine) qemu_register_reset(main_cpu_reset, cpu); - /* fulong 2e has 256M ram. */ + /* TODO: support more than 256M RAM as highmem */ ram_size = 256 * MiB; /* allocate RAM */ @@ -359,8 +347,14 @@ static void mips_fulong2e_init(MachineState *machine) vt82c686b_southbridge_init(pci_bus, FULONG2E_VIA_SLOT, env->irq[5], &smbus, &isa_bus); - /* TODO: Populate SPD eeprom data. */ - smbus_eeprom_init(smbus, 1, eeprom_spd, sizeof(eeprom_spd)); + /* Populate SPD eeprom data */ + spd_data = spd_data_generate(DDR, ram_size, &err); + if (err) { + warn_report_err(err); + } + if (spd_data) { + smbus_eeprom_init_one(smbus, 0x50, spd_data); + } mc146818_rtc_init(isa_bus, 2000, NULL); @@ -374,6 +368,7 @@ static void mips_fulong2e_machine_init(MachineClass *mc) mc->init = mips_fulong2e_init; mc->block_default_type = IF_IDE; mc->default_cpu_type = MIPS_CPU_TYPE_NAME("Loongson-2E"); + mc->default_ram_size = 256 * MiB; } DEFINE_MACHINE("fulong2e", mips_fulong2e_machine_init)