Commit 2cf6cb50 authored by Cédric Le Goater's avatar Cédric Le Goater Committed by Peter Maydell
Browse files

aspeed: add some I2C devices to the Aspeed machines 



Let's add an RTC to the palmetto BMC and a LM75 temperature sensor to
the AST2500 EVB to start with.

Signed-off-by: default avatarCédric Le Goater <clg@kaod.org>
Message-id: 1494827476-1487-5-git-send-email-clg@kaod.org
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent 4960f084

hw/arm/aspeed.c

+27 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ typedef struct AspeedBoardConfig { 
    const char *fmc_model;

    const char *spi_model;

    uint32_t num_cs;

    void (*i2c_init)(AspeedBoardState *bmc);

} AspeedBoardConfig;



enum {
@@ -82,6 +83,9 @@ enum { 
        SCU_AST2500_HW_STRAP_ACPI_ENABLE |                              \

        SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))



static void palmetto_bmc_i2c_init(AspeedBoardState *bmc);

static void ast2500_evb_i2c_init(AspeedBoardState *bmc);



static const AspeedBoardConfig aspeed_boards[] = {

    [PALMETTO_BMC] = {

        .soc_name  = "ast2400-a1",
@@ -89,6 +93,7 @@ static const AspeedBoardConfig aspeed_boards[] = { 
        .fmc_model = "n25q256a",

        .spi_model = "mx25l25635e",

        .num_cs    = 1,

        .i2c_init  = palmetto_bmc_i2c_init,

    },

    [AST2500_EVB]  = {

        .soc_name  = "ast2500-a1",
@@ -96,6 +101,7 @@ static const AspeedBoardConfig aspeed_boards[] = { 
        .fmc_model = "n25q256a",

        .spi_model = "mx25l25635e",

        .num_cs    = 1,

        .i2c_init  = ast2500_evb_i2c_init,

    },

    [ROMULUS_BMC]  = {

        .soc_name  = "ast2500-a1",
@@ -223,9 +229,22 @@ static void aspeed_board_init(MachineState *machine, 
    aspeed_board_binfo.ram_size = ram_size;

    aspeed_board_binfo.loader_start = sc->info->sdram_base;



    if (cfg->i2c_init) {

        cfg->i2c_init(bmc);

    }



    arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo);

}



static void palmetto_bmc_i2c_init(AspeedBoardState *bmc)

{

    AspeedSoCState *soc = &bmc->soc;



    /* The palmetto platform expects a ds3231 RTC but a ds1338 is

     * enough to provide basic RTC features. Alarms will be missing */

    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), "ds1338", 0x68);

}



static void palmetto_bmc_init(MachineState *machine)

{

    aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]);
@@ -250,6 +269,14 @@ static const TypeInfo palmetto_bmc_type = { 
    .class_init = palmetto_bmc_class_init,

};



static void ast2500_evb_i2c_init(AspeedBoardState *bmc)

{

    AspeedSoCState *soc = &bmc->soc;



    /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */

    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "tmp105", 0x4d);

}



static void ast2500_evb_init(MachineState *machine)

{

    aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]);