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Re: [PATCH v2 07/12] hw/block/pflash_cfi02: Factor out pflash_reset_stat
From: |
David Edmondson |
Subject: |
Re: [PATCH v2 07/12] hw/block/pflash_cfi02: Factor out pflash_reset_state_machine() |
Date: |
Wed, 10 Mar 2021 17:31:23 +0000 |
On Wednesday, 2021-03-10 at 18:05:23 +01, Philippe Mathieu-Daudé wrote:
> There is multiple places resetting the internal state machine.
> Factor the code out in a new pflash_reset_state_machine() method.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
> ---
> hw/block/pflash_cfi02.c | 20 +++++++++++---------
> 1 file changed, 11 insertions(+), 9 deletions(-)
>
> diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c
> index 2ba77a0171b..aea47a99c61 100644
> --- a/hw/block/pflash_cfi02.c
> +++ b/hw/block/pflash_cfi02.c
> @@ -184,11 +184,17 @@ static void pflash_setup_mappings(PFlashCFI02 *pfl)
> pfl->rom_mode = true;
> }
>
> +static void pflash_reset_state_machine(PFlashCFI02 *pfl)
> +{
> + trace_pflash_reset();
> + pfl->cmd = 0x00;
> + pfl->wcycle = 0;
> +}
> +
> static void pflash_mode_read_array(PFlashCFI02 *pfl)
> {
> trace_pflash_mode_read_array();
> - pfl->cmd = 0x00;
> - pfl->wcycle = 0;
> + pflash_reset_state_machine(pfl);
> pfl->rom_mode = true;
> memory_region_rom_device_set_romd(&pfl->orig_mem, true);
> }
> @@ -330,8 +336,7 @@ static uint64_t pflash_read(void *opaque, hwaddr offset,
> unsigned int width)
> default:
> /* This should never happen : reset state & treat it as a read*/
> DPRINTF("%s: unknown command state: %x\n", __func__, pfl->cmd);
> - pfl->wcycle = 0;
> - pfl->cmd = 0;
> + pflash_reset_state_machine(pfl);
> /* fall through to the read code */
> case 0x80: /* Erase (unlock) */
> /* We accept reads during second unlock sequence... */
> @@ -669,8 +674,7 @@ static void pflash_write(void *opaque, hwaddr offset,
> uint64_t value,
> }
> reset_dq3(pfl);
> timer_del(&pfl->timer);
> - pfl->wcycle = 0;
> - pfl->cmd = 0;
> + pflash_reset_state_machine(pfl);
> return;
> }
> /*
> @@ -710,10 +714,8 @@ static void pflash_write(void *opaque, hwaddr offset,
> uint64_t value,
>
> /* Reset flash */
> reset_flash:
> - trace_pflash_reset();
> pfl->bypass = 0;
> - pfl->wcycle = 0;
> - pfl->cmd = 0;
> + pflash_reset_state_machine(pfl);
> return;
>
> do_bypass:
> --
> 2.26.2
dme.
--
"Can I take you out to the pictures, Joan?"
- [PATCH v2 00/12] hw/block/pflash: Refactors around setting the device in read-array mode, Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 01/12] hw/block/pflash_cfi: Fix code style for checkpatch.pl, Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 02/12] hw/block/pflash_cfi01: Extract pflash_cfi01_fill_cfi_table(), Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 03/12] hw/block/pflash_cfi02: Extract pflash_cfi02_fill_cfi_table(), Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 04/12] hw/block/pflash_cfi02: Set rom_mode to true in pflash_setup_mappings(), Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 05/12] hw/block/pflash_cfi02: Open-code pflash_register_memory(rom=false), Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 06/12] hw/block/pflash_cfi02: Rename register_memory(true) as mode_read_array, Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 07/12] hw/block/pflash_cfi02: Factor out pflash_reset_state_machine(), Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 08/12] hw/block/pflash_cfi02: Add DeviceReset method, Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 09/12] hw/block/pflash_cfi01: Clarify trace events, Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 10/12] hw/block/pflash_cfi01: Extract pflash_mode_read_array(), Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 11/12] hw/block/pflash_cfi01: Correct the type of PFlashCFI01.ro, Philippe Mathieu-Daudé, 2021/03/10
- [PATCH v2 12/12] hw/block/pflash_cfi: Replace DPRINTF with trace events, Philippe Mathieu-Daudé, 2021/03/10