With the introduction of the new spi-mem model operations changed
slightly. The new spi-mem operations make things a bit easier to
handle for ich-spi flash interface. This patch converts the ich-spi
driver by using spi-mem operations.
Signed-off-by: Bernhard Messerklinger
---
Changes in v4:
- fix changelog; fix local variable types and order
Changes in v3:
- update erase op code handling to work with latest master
spi-nor driver
Changes in v2:
- make 2 routines static; update commit message a little bit
drivers/spi/ich.c | 258 +-
drivers/spi/ich.h | 9 +-
2 files changed, 95 insertions(+), 172 deletions(-)
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index 03531a8c0c..60589dfb61 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -14,6 +14,8 @@
#include
#include
#include
+#include
+#include
#include "ich.h"
@@ -171,18 +173,6 @@ static int ich_init_controller(struct udevice *dev,
return 0;
}
-static inline void spi_use_out(struct spi_trans *trans, unsigned bytes)
-{
- trans->out += bytes;
- trans->bytesout -= bytes;
-}
-
-static inline void spi_use_in(struct spi_trans *trans, unsigned bytes)
-{
- trans->in += bytes;
- trans->bytesin -= bytes;
-}
-
static void spi_lock_down(struct ich_spi_platdata *plat, void *sbase)
{
if (plat->ich_version == ICHV_7) {
@@ -213,47 +203,12 @@ static bool spi_lock_status(struct ich_spi_platdata
*plat, void *sbase)
return lock != 0;
}
-static void spi_setup_type(struct spi_trans *trans, int data_bytes)
-{
- trans->type = 0xFF;
-
- /* Try to guess spi type from read/write sizes */
- if (trans->bytesin == 0) {
- if (trans->bytesout + data_bytes > 4)
- /*
-* If bytesin = 0 and bytesout > 4, we presume this is
-* a write data operation, which is accompanied by an
-* address.
-*/
- trans->type = SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS;
- else
- trans->type = SPI_OPCODE_TYPE_WRITE_NO_ADDRESS;
- return;
- }
-
- if (trans->bytesout == 1) { /* and bytesin is > 0 */
- trans->type = SPI_OPCODE_TYPE_READ_NO_ADDRESS;
- return;
- }
-
- if (trans->bytesout == 4) /* and bytesin is > 0 */
- trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS;
-
- /* Fast read command is called with 5 bytes instead of 4 */
- if (trans->out[0] == SPI_OPCODE_FAST_READ && trans->bytesout == 5) {
- trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS;
- --trans->bytesout;
- }
-}
-
static int spi_setup_opcode(struct ich_spi_priv *ctlr, struct spi_trans *trans,
bool lock)
{
uint16_t optypes;
uint8_t opmenu[ctlr->menubytes];
- trans->opcode = trans->out[0];
- spi_use_out(trans, 1);
if (!lock) {
/* The lock is off, so just use index 0. */
ich_writeb(ctlr, trans->opcode, ctlr->opmenu);
@@ -285,12 +240,7 @@ static int spi_setup_opcode(struct ich_spi_priv *ctlr,
struct spi_trans *trans,
optypes = ich_readw(ctlr, ctlr->optype);
optype = (optypes >> (opcode_index * 2)) & 0x3;
- if (trans->type == SPI_OPCODE_TYPE_WRITE_NO_ADDRESS &&
- optype == SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS &&
- trans->bytesout >= 3) {
- /* We guessed wrong earlier. Fix it up. */
- trans->type = optype;
- }
+
if (optype != trans->type) {
printf("ICH SPI: Transaction doesn't fit type %d\n",
optype);
@@ -300,26 +250,6 @@ static int spi_setup_opcode(struct ich_spi_priv *ctlr,
struct spi_trans *trans,
}
}
-static int spi_setup_offset(struct spi_trans *trans)
-{
- /* Separate the SPI address and data */
- switch (trans->type) {
- case SPI_OPCODE_TYPE_READ_NO_ADDRESS:
- case SPI_OPCODE_TYPE_WRITE_NO_ADDRESS:
- return 0;
- case SPI_OPCODE_TYPE_READ_WITH_ADDRESS:
- case SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS:
- trans->offset = ((uint32_t)trans->out[0] << 16) |
- ((uint32_t)trans->out[1] << 8) |
- ((uint32_t)trans->out[2] << 0);
- spi_use_out(trans, 3);
- return 1;
- default:
- printf("Unrecognized SPI transaction type %#x\n", trans->type);
- return -EPROTO;
- }
-}
-
/*
* Wait for up to 6s til status register bit(s) turn 1 (in case wait_til_set
* below is true) or 0. In case the wait was for the bit(s) to set - write
@@ -350,7 +280,7 @@ static int ich_status_poll(struct ich_spi_priv *ctlr, u16
