/**
* Initialize driver instances.
*/
static void _ConfigureDrivers(void)
{
uint32_t i;
/* Initialize the DMA driver */
XDMAD_Initialize(&dmaDrv,0);
NVIC_EnableIRQ( XDMAC_IRQn );
/* Initialize the HSMCI driver */
MCID_Init(&mciDrv[0], HSMCI, ID_HSMCI, BOARD_MCK, &dmaDrv, 0 ) ;
NVIC_EnableIRQ( HSMCI_IRQn );
/* Initialize SD driver */
for (i = 0; i < BOARD_NUM_MCI; i ++)
{
SDD_InitializeSdmmcMode(&sdDrv[i], &mciDrv[i], 0);
}
}
static uint32_t handle_cmd_initialize(uint32_t cmd, uint32_t *mailbox)
{
union initialize_mailbox *mbx = (union initialize_mailbox*)mailbox;
uint32_t instance = mbx->in.parameters[0];
uint32_t boot_partition = mbx->in.parameters[1];
uint32_t bus_width = mbx->in.parameters[2];
uint32_t supported_voltages = mbx->in.parameters[3];
const struct sdmmc_pin_definition* instance_def;
uint32_t max_bus_width, sdmmc_id, caps0;
uint8_t rc, card_type;
assert(cmd == APPLET_CMD_INITIALIZE);
applet_set_init_params(mbx->in.comm_type, mbx->in.trace_level);
initialized = false;
trace_info_wp("\r\nApplet 'SD/MMC' from "
"softpack " SOFTPACK_VERSION ".\r\n");
if (bus_width != 0 && bus_width != 1 &&
bus_width != 4 && bus_width != 8) {
trace_error_wp("Invalid configuration: Unsupported bus width %u\r\n",
(unsigned)bus_width);
return APPLET_FAIL;
}
if (!supported_voltages || (supported_voltages & ~SUPPORTED_VOLTAGE_MASK)) {
trace_error_wp("Invalid supported voltages value: 0x%x\r\n",
(unsigned)supported_voltages);
return APPLET_FAIL;
}
instance_def = find_instance(instance);
if (!instance_def) {
trace_error_wp("Invalid configuration: SDMMC%u\r\n",
(unsigned)instance);
return APPLET_FAIL;
}
max_bus_width = get_max_bus_width(instance_def);
if (!bus_width) {
bus_width = max_bus_width;
} else if (bus_width > max_bus_width) {
trace_error_wp("Invalid configuration: SDMMC%u Bus Width %u\r\n",
(unsigned)instance, (unsigned)bus_width);
return APPLET_FAIL;
}
if (boot_partition > 2) {
trace_error_wp("Invalid configuration: Unknown partition %u\r\n",
(unsigned)boot_partition);
return APPLET_FAIL;
}
trace_info_wp("Initializing SDMMC%u", (unsigned)instance);
if (boot_partition)
trace_info_wp(", boot partition %u",
(unsigned)boot_partition);
else
trace_info_wp(", user partition");
if (bus_width == 1)
trace_info_wp(", 1-bit");
else if (bus_width == 4)
trace_info_wp(", 4-bit");
else if (bus_width == 8)
trace_info_wp(", 8-bit");
trace_info_wp(", %s",
get_supported_voltage_string(supported_voltages));
trace_info_wp("\r\n");
/* Configure PIO */
configure_instance_pio(instance_def, bus_width, supported_voltages);
/* The SDMMC peripherals are clocked by their Peripheral Clock, the
* Master Clock, and a Generated Clock (at least on SAMA5D2x).
* Configure GCLKx = <PLLA clock> divided by 1
* As of writing, the PLLA clock runs at 498 MHz */
sdmmc_id = get_sdmmc_id_from_addr(instance_def->addr);
pmc_configure_gck(sdmmc_id, PMC_PCR_GCKCSS_PLLA_CLK, 1 - 1);
pmc_enable_gck(sdmmc_id);
pmc_enable_peripheral(sdmmc_id);
// set SDMMC controller capabilities
caps0 = SDMMC_CA0R_SLTYPE_EMBEDDED;
if (bus_width == 8)
caps0 |= SDMMC_CA0R_ED8SUP;
if (supported_voltages & SUPPORTED_VOLTAGE_18V)
caps0 |= SDMMC_CA0R_V18VSUP;
if (supported_voltages & SUPPORTED_VOLTAGE_30V)
caps0 |= SDMMC_CA0R_V30VSUP;
if (supported_voltages & SUPPORTED_VOLTAGE_33V)
caps0 |= SDMMC_CA0R_V33VSUP;
sdmmc_set_capabilities(instance_def->addr,
caps0, CAPS0_MASK, 0, 0);
sdmmc_initialize(&drv, instance_def->addr, sdmmc_id,
TIMER0_MODULE, TIMER0_CHANNEL, NULL, 0);
SDD_InitializeSdmmcMode(&lib, &drv, 0);
if (SD_GetStatus(&lib) == SDMMC_NOT_SUPPORTED) {
trace_error_wp("Device not detected.\n\r");
return APPLET_FAIL;
}
rc = SD_Init(&lib);
if (rc != SDMMC_OK) {
trace_error_wp("SD/MMC device initialization failed: %d\n\r", rc);
return APPLET_FAIL;
}
card_type = SD_GetCardType(&lib);
if (!(card_type & CARD_TYPE_bmSDMMC)) {
trace_error_wp("Invalid card type: only SD/MMC is supported\n\r");
return APPLET_FAIL;
}
SD_DumpStatus(&lib);
if (boot_partition) {
/* check that card is MMC */
if (!(card_type & CARD_TYPE_bmMMC)) {
trace_error_wp("Invalid card type: boot partition in only supported on MMC\n\r");
return APPLET_FAIL;
}
/* get and check boot partition size */
mem_size = MMC_EXT_BOOT_SIZE_MULTI(lib.EXT) * (128 * 1024 / BLOCK_SIZE);
if (mem_size == 0) {
trace_error_wp("No boot partition available\n\r");
return APPLET_FAIL;
}
/* configure boot partition */
mmc_configure_partition(&lib, EMMC_BOOT_PARTITION_ACCESS(boot_partition) |
EMMC_BOOT_PARTITION_ENABLE(boot_partition) |
EMMC_BOOT_ACK);
mmc_configure_boot_bus(&lib, 0);
} else {
mem_size = SD_GetTotalSizeKB(&lib) * 1024 / BLOCK_SIZE;
}
buffer = applet_buffer;
buffer_size = applet_buffer_size & ~(BLOCK_SIZE - 1);
if (buffer_size == 0) {
trace_info_wp("Not enough memory for buffer\r\n");
return APPLET_FAIL;
}
mbx->out.buf_addr = (uint32_t)buffer;
mbx->out.buf_size = buffer_size;
mbx->out.page_size = BLOCK_SIZE;
mbx->out.erase_support = 0;
mbx->out.mem_size = mem_size;
trace_info_wp("SD/MMC device initialization successful\n\r");
trace_info_wp("Buffer Address: 0x%lx\r\n", mbx->out.buf_addr);
trace_info_wp("Buffer Size: %ld bytes\r\n", mbx->out.buf_size);
trace_info_wp("Page Size: %ld bytes\r\n", mbx->out.page_size);
trace_info_wp("Memory Size: %ld pages\r\n", mbx->out.mem_size);
initialized = true;
return APPLET_SUCCESS;
}