diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/intel/atom/sst/sst_acpi.c | 82 |
1 files changed, 78 insertions, 4 deletions
diff --git a/sound/soc/intel/atom/sst/sst_acpi.c b/sound/soc/intel/atom/sst/sst_acpi.c index 4d31849..0c2cc42 100644 --- a/sound/soc/intel/atom/sst/sst_acpi.c +++ b/sound/soc/intel/atom/sst/sst_acpi.c @@ -39,6 +39,8 @@ #include <acpi/platform/aclinux.h> #include <acpi/actypes.h> #include <acpi/acpi_bus.h> +#include <asm/cpu_device_id.h> +#include <asm/iosf_mbi.h> #include "../sst-mfld-platform.h" #include "../../common/sst-dsp.h" #include "../../common/sst-acpi.h" @@ -113,6 +115,28 @@ static const struct sst_res_info byt_rvp_res_info = { .acpi_ipc_irq_index = 5, }; +/* BYTCR has different BIOS from BYT */ +static const struct sst_res_info bytcr_res_info = { + .shim_offset = 0x140000, + .shim_size = 0x000100, + .shim_phy_addr = SST_BYT_SHIM_PHY_ADDR, + .ssp0_offset = 0xa0000, + .ssp0_size = 0x1000, + .dma0_offset = 0x98000, + .dma0_size = 0x4000, + .dma1_offset = 0x9c000, + .dma1_size = 0x4000, + .iram_offset = 0x0c0000, + .iram_size = 0x14000, + .dram_offset = 0x100000, + .dram_size = 0x28000, + .mbox_offset = 0x144000, + .mbox_size = 0x1000, + .acpi_lpe_res_index = 0, + .acpi_ddr_index = 2, + .acpi_ipc_irq_index = 0 +}; + static struct sst_platform_info byt_rvp_platform_data = { .probe_data = &byt_fwparse_info, .ipc_info = &byt_ipc_info, @@ -215,6 +239,47 @@ static int sst_platform_get_resources(struct intel_sst_drv *ctx) return 0; } + +static int is_byt_cr(struct device *dev, bool *bytcr) +{ + int status = 0; + + if (IS_ENABLED(CONFIG_IOSF_MBI)) { + static const struct x86_cpu_id cpu_ids[] __initconst = { + { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */ + {} + }; + int status; + u32 bios_status; + + if (!x86_match_cpu(cpu_ids) || !iosf_mbi_available()) { + /* bail silently */ + return status; + } + + status = iosf_mbi_read(BT_MBI_UNIT_PMC, /* 0x04 PUNIT */ + MBI_REG_READ, /* 0x10 */ + 0x006, /* BIOS_CONFIG */ + &bios_status); + + if (status) { + dev_err(dev, "could not read PUNIT BIOS_CONFIG\n"); + } else { + /* bits 26:27 mirror PMIC options */ + bios_status = (bios_status >> 26) & 3; + + if ((bios_status == 1) || (bios_status == 3)) + *bytcr = true; + else + dev_info(dev, "BYT-CR not detected\n"); + } + } else { + dev_info(dev, "IOSF_MBI not enabled, no BYT-CR detection\n"); + } + return status; +} + + static int sst_acpi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -226,6 +291,7 @@ static int sst_acpi_probe(struct platform_device *pdev) struct platform_device *plat_dev; struct sst_platform_info *pdata; unsigned int dev_id; + bool bytcr = false; id = acpi_match_device(dev->driver->acpi_match_table, dev); if (!id) @@ -251,6 +317,18 @@ static int sst_acpi_probe(struct platform_device *pdev) dev_dbg(dev, "ACPI device id: %x\n", dev_id); + ret = sst_alloc_drv_context(&ctx, dev, dev_id); + if (ret < 0) + return ret; + + ret = is_byt_cr(dev, &bytcr); + if (!((ret < 0) || (bytcr == false))) { + dev_info(dev, "Detected Baytrail-CR platform\n"); + + /* override resource info */ + byt_rvp_platform_data.res_info = &bytcr_res_info; + } + plat_dev = platform_device_register_data(dev, pdata->platform, -1, NULL, 0); if (IS_ERR(plat_dev)) { @@ -271,10 +349,6 @@ static int sst_acpi_probe(struct platform_device *pdev) return PTR_ERR(mdev); } - ret = sst_alloc_drv_context(&ctx, dev, dev_id); - if (ret < 0) - return ret; - /* Fill sst platform data */ ctx->pdata = pdata; strcpy(ctx->firmware_name, mach->fw_filename); |