*/
#include <common.h>
#include <linux/kernel.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
static const struct nand_data_interface onfi_sdr_timings[] = {
/* Mode 0 */
{
.type = NAND_SDR_IFACE,
.timings.sdr = {
+ .tCCS_min = 500000,
+ .tR_max = 200000000,
.tADL_min = 400000,
.tALH_min = 20000,
.tALS_min = 50000,
{
.type = NAND_SDR_IFACE,
.timings.sdr = {
+ .tCCS_min = 500000,
+ .tR_max = 200000000,
.tADL_min = 400000,
.tALH_min = 10000,
.tALS_min = 25000,
{
.type = NAND_SDR_IFACE,
.timings.sdr = {
+ .tCCS_min = 500000,
+ .tR_max = 200000000,
.tADL_min = 400000,
.tALH_min = 10000,
.tALS_min = 15000,
{
.type = NAND_SDR_IFACE,
.timings.sdr = {
+ .tCCS_min = 500000,
+ .tR_max = 200000000,
.tADL_min = 400000,
.tALH_min = 5000,
.tALS_min = 10000,
{
.type = NAND_SDR_IFACE,
.timings.sdr = {
+ .tCCS_min = 500000,
+ .tR_max = 200000000,
.tADL_min = 400000,
.tALH_min = 5000,
.tALS_min = 10000,
{
.type = NAND_SDR_IFACE,
.timings.sdr = {
+ .tCCS_min = 500000,
+ .tR_max = 200000000,
.tADL_min = 400000,
.tALH_min = 5000,
.tALS_min = 10000,
*iface = onfi_sdr_timings[timing_mode];
/*
- * TODO: initialize timings that cannot be deduced from timing mode:
+ * Initialize timings that cannot be deduced from timing mode:
* tR, tPROG, tCCS, ...
* These information are part of the ONFI parameter page.
*/
+ if (chip->onfi_version) {
+ struct nand_onfi_params *params = &chip->onfi_params;
+ struct nand_sdr_timings *timings = &iface->timings.sdr;
+
+ /* microseconds -> picoseconds */
+ timings->tPROG_max = 1000000ULL * le16_to_cpu(params->t_prog);
+ timings->tBERS_max = 1000000ULL * le16_to_cpu(params->t_bers);
+ timings->tR_max = 1000000ULL * le16_to_cpu(params->t_r);
+
+ /* nanoseconds -> picoseconds */
+ timings->tCCS_min = 1000UL * le16_to_cpu(params->t_ccs);
+ }
return 0;
}
EXPORT_SYMBOL(onfi_init_data_interface);
+
+/**
+ * nand_get_default_data_interface - [NAND Interface] Retrieve NAND
+ * data interface for mode 0. This is used as default timing after
+ * reset.
+ */
+const struct nand_data_interface *nand_get_default_data_interface(void)
+{
+ return &onfi_sdr_timings[0];
+}
+EXPORT_SYMBOL(nand_get_default_data_interface);