From e1ad9bc405afbd7581831ca1705f39e73c94c5ff Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 4 Jul 2016 13:06:38 +0100 Subject: [PATCH] ast2400: create SPI flash slaves MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A set of SPI flash slaves is attached under the flash controllers of the palmetto platform. "n25q256a" flash modules are used for the BMC and "mx25l25635e" for the host. These types are common in the OpenPower ecosystem. Signed-off-by: Cédric Le Goater Message-id: 1467138270-32481-9-git-send-email-clg@kaod.org Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- hw/arm/palmetto-bmc.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/hw/arm/palmetto-bmc.c b/hw/arm/palmetto-bmc.c index b8eed21348..54e29a865d 100644 --- a/hw/arm/palmetto-bmc.c +++ b/hw/arm/palmetto-bmc.c @@ -18,6 +18,8 @@ #include "hw/arm/ast2400.h" #include "hw/boards.h" #include "qemu/log.h" +#include "sysemu/block-backend.h" +#include "sysemu/blockdev.h" static struct arm_boot_info palmetto_bmc_binfo = { .loader_start = AST2400_SDRAM_BASE, @@ -30,6 +32,32 @@ typedef struct PalmettoBMCState { MemoryRegion ram; } PalmettoBMCState; +static void palmetto_bmc_init_flashes(AspeedSMCState *s, const char *flashtype, + Error **errp) +{ + int i ; + + for (i = 0; i < s->num_cs; ++i) { + AspeedSMCFlash *fl = &s->flashes[i]; + DriveInfo *dinfo = drive_get_next(IF_MTD); + qemu_irq cs_line; + + /* + * FIXME: check that we are not using a flash module exceeding + * the controller segment size + */ + fl->flash = ssi_create_slave_no_init(s->spi, flashtype); + if (dinfo) { + qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo), + errp); + } + qdev_init_nofail(fl->flash); + + cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0); + sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line); + } +} + static void palmetto_bmc_init(MachineState *machine) { PalmettoBMCState *bmc; @@ -49,6 +77,9 @@ static void palmetto_bmc_init(MachineState *machine) object_property_set_bool(OBJECT(&bmc->soc), true, "realized", &error_abort); + palmetto_bmc_init_flashes(&bmc->soc.smc, "n25q256a", &error_abort); + palmetto_bmc_init_flashes(&bmc->soc.spi, "mx25l25635e", &error_abort); + palmetto_bmc_binfo.kernel_filename = machine->kernel_filename; palmetto_bmc_binfo.initrd_filename = machine->initrd_filename; palmetto_bmc_binfo.kernel_cmdline = machine->kernel_cmdline;