From aceb5b064cbc44443c257e88364740e9db11549c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Thu, 8 Feb 2018 13:47:55 -0300 Subject: sdhci: add a 'spec_version property' (default to v2) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis Message-Id: <20180208164818.7961-8-f4bug@amsat.org> --- hw/sd/sdhci.c | 27 +++++++++++++++++++++++---- 1 file changed, 23 insertions(+), 4 deletions(-) (limited to 'hw/sd/sdhci.c') diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c index 3602286f46..17a1348f0f 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -173,7 +173,8 @@ static void sdhci_reset(SDHCIState *s) timer_del(s->insert_timer); timer_del(s->transfer_timer); - /* Set all registers to 0. Capabilities registers are not cleared + + /* Set all registers to 0. Capabilities/Version registers are not cleared * and assumed to always preserve their value, given to them during * initialization */ memset(&s->sdmasysad, 0, (uintptr_t)&s->capareg - (uintptr_t)&s->sdmasysad); @@ -918,7 +919,7 @@ static uint64_t sdhci_read(void *opaque, hwaddr offset, unsigned size) ret = (uint32_t)(s->admasysaddr >> 32); break; case SDHC_SLOT_INT_STATUS: - ret = (SD_HOST_SPECv2_VERS << 16) | sdhci_slotint(s); + ret = (s->version << 16) | sdhci_slotint(s); break; default: qemu_log_mask(LOG_UNIMP, "SDHC rd_%ub @0x%02" HWADDR_PRIx " " @@ -1174,11 +1175,22 @@ static inline unsigned int sdhci_get_fifolen(SDHCIState *s) } } +static void sdhci_init_readonly_registers(SDHCIState *s, Error **errp) +{ + if (s->sd_spec_version != 2) { + error_setg(errp, "Only Spec v2 is supported"); + return; + } + s->version = (SDHC_HCVER_VENDOR << 8) | (s->sd_spec_version - 1); +} + /* --- qdev common --- */ #define DEFINE_SDHCI_COMMON_PROPERTIES(_state) \ - /* Capabilities registers provide information on supported features - * of this specific host controller implementation */ \ + DEFINE_PROP_UINT8("sd-spec-version", _state, sd_spec_version, 2), \ + \ + /* Capabilities registers provide information on supported + * features of this specific host controller implementation */ \ DEFINE_PROP_UINT64("capareg", _state, capareg, SDHC_CAPAB_REG_DEFAULT), \ DEFINE_PROP_UINT64("maxcurr", _state, maxcurr, 0) @@ -1206,6 +1218,13 @@ static void sdhci_uninitfn(SDHCIState *s) static void sdhci_common_realize(SDHCIState *s, Error **errp) { + Error *local_err = NULL; + + sdhci_init_readonly_registers(s, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } s->buf_maxsz = sdhci_get_fifolen(s); s->fifo_buffer = g_malloc0(s->buf_maxsz); -- cgit v1.2.3