From a20c54b1231dffa3fa0590905b67b2725138718e Mon Sep 17 00:00:00 2001 From: Patrick Williams Date: Tue, 8 Mar 2022 09:18:11 +0100 Subject: [PATCH] hw/arm/aspeed: add Bletchley machine type MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add the 'bletchley-bmc' machine type based on the kernel DTS[1] and hardware schematics available to me. The i2c model is as complete as the current QEMU models support, but in some cases I substituted devices that are close enough for present functionality. Strap registers are kept the same as the AST2600-EVB until I'm able to confirm correct values with physical hardware. This has been tested with an openbmc image built from [2] plus a kernel patch[3] for the SPI flash module. 1. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts?id=a8c729e966c4e9d033242d948b0e53c2a62d32e2 2. https://github.com/openbmc/openbmc/commit/b9432b980d7f63f7512ffbcc7124386ba896dfc6 3. https://github.com/openbmc/linux/commit/25b566b9a9d7f5d4f10c1b7304007bdb286eefd7 Signed-off-by: Patrick Williams Reviewed-by: Cédric Le Goater [ clg : increased number of FMC devices to 2 to match Linux dts ] Message-Id: <20220305000656.1944589-2-patrick@stwcx.xyz> Signed-off-by: Cédric Le Goater --- hw/arm/aspeed.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c index 088550ed33..d205384d98 100644 --- a/hw/arm/aspeed.c +++ b/hw/arm/aspeed.c @@ -167,6 +167,11 @@ struct AspeedMachineState { #define FUJI_BMC_HW_STRAP1 0x00000000 #define FUJI_BMC_HW_STRAP2 0x00000000 +/* Bletchley hardware value */ +/* TODO: Leave same as EVB for now. */ +#define BLETCHLEY_BMC_HW_STRAP1 AST2600_EVB_HW_STRAP1 +#define BLETCHLEY_BMC_HW_STRAP2 AST2600_EVB_HW_STRAP2 + /* * The max ram region is for firmwares that scan the address space * with load/store to guess how much RAM the SoC has. @@ -897,6 +902,54 @@ static void fuji_bmc_i2c_init(AspeedMachineState *bmc) } } +#define TYPE_TMP421 "tmp421" + +static void bletchley_bmc_i2c_init(AspeedMachineState *bmc) +{ + AspeedSoCState *soc = &bmc->soc; + I2CBus *i2c[13] = {}; + for (int i = 0; i < 13; i++) { + if ((i == 8) || (i == 11)) { + continue; + } + i2c[i] = aspeed_i2c_get_bus(&soc->i2c, i); + } + + /* Bus 0 - 5 all have the same config. */ + for (int i = 0; i < 6; i++) { + /* Missing model: ti,ina230 @ 0x45 */ + /* Missing model: mps,mp5023 @ 0x40 */ + i2c_slave_create_simple(i2c[i], TYPE_TMP421, 0x4f); + /* Missing model: nxp,pca9539 @ 0x76, but PCA9552 works enough */ + i2c_slave_create_simple(i2c[i], TYPE_PCA9552, 0x76); + i2c_slave_create_simple(i2c[i], TYPE_PCA9552, 0x67); + /* Missing model: fsc,fusb302 @ 0x22 */ + } + + /* Bus 6 */ + at24c_eeprom_init(i2c[6], 0x56, 65536); + /* Missing model: nxp,pcf85263 @ 0x51 , but ds1338 works enough */ + i2c_slave_create_simple(i2c[6], "ds1338", 0x51); + + + /* Bus 7 */ + at24c_eeprom_init(i2c[7], 0x54, 65536); + + /* Bus 9 */ + i2c_slave_create_simple(i2c[9], TYPE_TMP421, 0x4f); + + /* Bus 10 */ + i2c_slave_create_simple(i2c[10], TYPE_TMP421, 0x4f); + /* Missing model: ti,hdc1080 @ 0x40 */ + i2c_slave_create_simple(i2c[10], TYPE_PCA9552, 0x67); + + /* Bus 12 */ + /* Missing model: adi,adm1278 @ 0x11 */ + i2c_slave_create_simple(i2c[12], TYPE_TMP421, 0x4c); + i2c_slave_create_simple(i2c[12], TYPE_TMP421, 0x4d); + i2c_slave_create_simple(i2c[12], TYPE_PCA9552, 0x67); +} + static bool aspeed_get_mmio_exec(Object *obj, Error **errp) { return ASPEED_MACHINE(obj)->mmio_exec; @@ -1220,6 +1273,25 @@ static void aspeed_machine_fuji_class_init(ObjectClass *oc, void *data) aspeed_soc_num_cpus(amc->soc_name); }; +static void aspeed_machine_bletchley_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc); + + mc->desc = "Facebook Bletchley BMC (Cortex-A7)"; + amc->soc_name = "ast2600-a3"; + amc->hw_strap1 = BLETCHLEY_BMC_HW_STRAP1; + amc->hw_strap2 = BLETCHLEY_BMC_HW_STRAP2; + amc->fmc_model = "w25q01jvq"; + amc->spi_model = NULL; + amc->num_cs = 2; + amc->macs_mask = ASPEED_MAC2_ON; + amc->i2c_init = bletchley_bmc_i2c_init; + mc->default_ram_size = 512 * MiB; + mc->default_cpus = mc->min_cpus = mc->max_cpus = + aspeed_soc_num_cpus(amc->soc_name); +} + static const TypeInfo aspeed_machine_types[] = { { .name = MACHINE_TYPE_NAME("palmetto-bmc"), @@ -1274,6 +1346,10 @@ static const TypeInfo aspeed_machine_types[] = { .parent = TYPE_ASPEED_MACHINE, .class_init = aspeed_machine_fuji_class_init, }, { + .name = MACHINE_TYPE_NAME("bletchley-bmc"), + .parent = TYPE_ASPEED_MACHINE, + .class_init = aspeed_machine_bletchley_class_init, + }, { .name = TYPE_ASPEED_MACHINE, .parent = TYPE_MACHINE, .instance_size = sizeof(AspeedMachineState), -- 2.11.0