uint32_t fs_sd_unmount ()
{
sd = mmc_close (sd);
(void)disable_vaux3 ();
return 0;
}
static void dsource_OnDestroy(t_DSAppStore* pme)
{
if(pme->root){
__AppStoreDir_Free(pme->root);
FREE(pme->root);
}
mmc_stop(pme->mmc_anim);
mmc_close(pme->mmc_anim);
}
/*
* mmc_init
*/
mmc_properties_t* mmc_init (uint32_t sdi_base_address,
int *status,
int expect_sd)
{
mmc_properties_t *device;
*status = MMC_ERROR;
/* Voltage Check@VAUX2 before accessing the eMMC */
uint8_t vaux = ab8500_reg_read(AB8500_REGU_VAUX2_SEL_REG);
if ((vaux > AB8500_VAUX2_2V7) && (vaux <= AB8500_VAUX2_MAX))
dprintf(INFO,"Proper voltage 0x0%x applied to eMMC\n", vaux);
else {
if (ab8500_reg_write(AB8500_REGU_VAUX2_SEL_REG, AB8500_VAUX2_2V9) < 0)
dprintf(INFO,"EMMC: Failed to set default voltage\n");
else
dprintf(INFO,"EMMC:Set to Default 0x0%x as Voltage is not in the Range!\n", vaux);
}
/* Create meta data struct */
device = u8500_alloc_mmc_struct();
if (!device) {
dprintf(INFO, "error allocating mmc structure\n");
return NULL;
}
/* Init host. Cast to void, function return 0 in all cases... */
if (EXPECT_SD == expect_sd) {
(void)u8500_mmc_host_init(device,
(struct sdi_registers *)sdi_base_address);
} else {
(void)u8500_emmc_host_init(device,
(struct sdi_registers *)sdi_base_address);
}
/* Reset host */
*status = mmc_host_reset(device);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
/* Setup bus width, initial value, changed after investigating host
* capabilites */
device->bus_width = BUS_WIDTH_1;
/* Setup clock , initial value, changed after investigating host
* capabilites */
device->device_clock = INIT_CLOCK;
/* Set bus and clock */
host_set_ios(device);
/* Reset card */
*status = mmc_send_go_idle(device);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
/* Test for SD card */
*status = mmc_send_sd_send_if_cond (device);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) Check for SD: status %d\n", __LINE__, *status);
}
/* Check if SD-card */
*status = mmc_send_op_cond(device, 1);
if (MMC_OK == *status) {
device->is_sd_card = 1;
} else {
dprintf(INFO,"mmc_init SD check (%d) status %d. Not an SD card\n", __LINE__, *status);
/* Try eMMMC */
*status = mmc_send_op_cond(device, 0);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
}
*status = mmc_send_all_send_cid(device);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
*status = mmc_send_set_relative_addr(device);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
*status = mmc_send_csd(device);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
*status = mmc_send_select_card(device, 0);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
if (!device->is_sd_card) {
*status = mmc_send_ext_csd(device, device->ext_csd);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
}
parse_csd(device);
dump_csd_to_debug(device);
*status = mmc_set_hs_timing (device);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
/* Set ecsd buswidth and device buswidth according to host capabilities */
*status = mmc_set_bus (device);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
/* Set host buswidth and clock */
device->device_clock = MAX_CLOCK;
if (device->is_sd_card)
device->device_clock = MAX_CLOCK / 2;
host_set_ios(device);
if (device->rel_write == REL_WRITE_TRUE) {
*status = mmc_send_switch(device, ECSD_ACCESS_MODE_WRITE_BYTE, ECSD_WR_REL_SET, 0x1F);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
}
*status = mmc_send_set_blocklen(device, MMC_BLOCK_SIZE_512);
if (MMC_OK != *status) {
dprintf(INFO,"mmc_init (%d) status %d\n", __LINE__, *status);
goto ErrorExit;
}
ErrorExit:
if (MMC_OK != *status) {
dprintf (INFO, "\n\nINIT EMMC FAILED %d\n\n", *status);
device = mmc_close (device);
}
return device;
}
