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From cfdd31e5cef09e255d42a39fe1171db7dfa9bd55 Mon Sep 17 00:00:00 2001
From: Valentine Barshak <valentine.barshak@cogentembedded.com>
Date: Fri, 16 Nov 2018 00:04:14 +0300
Subject: [PATCH 195/211] mtd: spi-nor: renesas: rpc: Support single mode write
command
This adds single mode write command support.
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
---
drivers/mtd/spi-nor/renesas-rpc.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/mtd/spi-nor/renesas-rpc.c b/drivers/mtd/spi-nor/renesas-rpc.c
index af99762..4cd50b1 100644
--- a/drivers/mtd/spi-nor/renesas-rpc.c
+++ b/drivers/mtd/spi-nor/renesas-rpc.c
@@ -555,7 +555,7 @@ static void rpc_setup_write_mode_command_and_adr(struct rpc_spi *rpc,
rpc_write(rpc, SMENR, val);
}
-static int rpc_setup_write_mode(struct rpc_spi *rpc)
+static int rpc_setup_write_mode(struct rpc_spi *rpc, u8 opcode)
{
u32 val;
@@ -576,7 +576,11 @@ static int rpc_setup_write_mode(struct rpc_spi *rpc)
val = rpc_read(rpc, SMENR);
val &= ~(SMENR_OCDB_MASK | SMENR_DME | SMENR_OCDE | SMENR_SPIDB_MASK
| SMENR_ADB_MASK | SMENR_OPDE_MASK | SMENR_SPIDE_MASK);
- val |= SMENR_SPIDE_32B;
+ if (opcode != SPINOR_OP_PP)
+ val |= SMENR_SPIDE_32B;
+ else
+ val |= SMENR_SPIDE_8B;
+
rpc_write(rpc, SMENR, val);
return 0;
@@ -750,7 +754,7 @@ static ssize_t rpc_write_flash(struct spi_nor *nor, loff_t to, size_t len,
bo = to & (WRITE_BUF_ADR_MASK);
rpc_flush_cache(rpc);
- rpc_setup_write_mode(rpc);
+ rpc_setup_write_mode(rpc, nor->program_opcode);
rpc_setup_write_mode_command_and_adr(rpc, nor->addr_width, true);
rpc_setup_writemode_nbits(rpc, 1, 1, 1);
@@ -767,7 +771,7 @@ static ssize_t rpc_write_flash(struct spi_nor *nor, loff_t to, size_t len,
size_t min = (len < (WRITE_BUF_SIZE - bo)) ? len : (WRITE_BUF_SIZE - bo);
rpc_write_unaligned(nor, to, min, buf, full);
- rpc_setup_write_mode(rpc);
+ rpc_setup_write_mode(rpc, nor->program_opcode);
len -= min;
buf += min;
--
2.7.4
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