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[Qemu-devel] [PATCH v2 01/12] m25p80: Add support for continuous read ou
From: |
Francisco Iglesias |
Subject: |
[Qemu-devel] [PATCH v2 01/12] m25p80: Add support for continuous read out of RDSR and READ_FSR |
Date: |
Sat, 21 Oct 2017 23:54:09 +0200 |
Add support for continuous read out of the RDSR and READ_FSR status
registers until the chip select is deasserted.
Signed-off-by: Francisco Iglesias <address@hidden>
---
hw/block/m25p80.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index a2438b9..2971519 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -423,6 +423,7 @@ typedef struct Flash {
uint8_t data[M25P80_INTERNAL_DATA_BUFFER_SZ];
uint32_t len;
uint32_t pos;
+ bool data_read_loop;
uint8_t needed_bytes;
uint8_t cmd_in_progress;
uint32_t cur_addr;
@@ -983,6 +984,7 @@ static void decode_new_cmd(Flash *s, uint32_t value)
}
s->pos = 0;
s->len = 1;
+ s->data_read_loop = true;
s->state = STATE_READING_DATA;
break;
@@ -993,6 +995,7 @@ static void decode_new_cmd(Flash *s, uint32_t value)
}
s->pos = 0;
s->len = 1;
+ s->data_read_loop = true;
s->state = STATE_READING_DATA;
break;
@@ -1133,6 +1136,7 @@ static int m25p80_cs(SSISlave *ss, bool select)
s->pos = 0;
s->state = STATE_IDLE;
flash_sync_dirty(s, -1);
+ s->data_read_loop = false;
}
DB_PRINT_L(0, "%sselect\n", select ? "de" : "");
@@ -1198,7 +1202,9 @@ static uint32_t m25p80_transfer8(SSISlave *ss, uint32_t
tx)
s->pos++;
if (s->pos == s->len) {
s->pos = 0;
- s->state = STATE_IDLE;
+ if (!s->data_read_loop) {
+ s->state = STATE_IDLE;
+ }
}
break;
--
2.9.3
- [Qemu-devel] [PATCH v2 00/12] Add support for the ZynqMP Generic QSPI, Francisco Iglesias, 2017/10/21
- [Qemu-devel] [PATCH v2 02/12] m25p80: Add support for SST READ ID 0x90/0xAB commands, Francisco Iglesias, 2017/10/21
- [Qemu-devel] [PATCH v2 03/12] m25p80: Add support for BRRD/BRWR and BULK_ERASE (0x60), Francisco Iglesias, 2017/10/21
- [Qemu-devel] [PATCH v2 05/12] xilinx_spips: Move FlashCMD, XilinxQSPIPS and XilinxSPIPSClass, Francisco Iglesias, 2017/10/21
- [Qemu-devel] [PATCH v2 10/12] xilinx_spips: Add support for 4 byte addresses in the LQSPI, Francisco Iglesias, 2017/10/21
- [Qemu-devel] [PATCH v2 01/12] m25p80: Add support for continuous read out of RDSR and READ_FSR,
Francisco Iglesias <=
- [Qemu-devel] [PATCH v2 04/12] m25p80: Add support for n25q512a11 and n25q512a13, Francisco Iglesias, 2017/10/21
- [Qemu-devel] [PATCH v2 08/12] xilinx_spips: Support configured endiannes of TX/RX registers, Francisco Iglesias, 2017/10/21
- [Qemu-devel] [PATCH v2 06/12] xilinx_spips: Update striping to be big-endian bit order, Francisco Iglesias, 2017/10/21
- [Qemu-devel] [PATCH v2 12/12] xlnx-zcu102: Add support for the ZynqMP QSPI, Francisco Iglesias, 2017/10/21
- [Qemu-devel] [PATCH v2 11/12] xilinx_spips: Add support for the ZynqMP Generic QSPI, Francisco Iglesias, 2017/10/21