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Re: [Qemu-devel] [PATCH v2 02/11] aspeed/smc: remove call to aspeed_smc_


From: mar.krzeminski
Subject: Re: [Qemu-devel] [PATCH v2 02/11] aspeed/smc: remove call to aspeed_smc_update_cs() in reset function
Date: Mon, 16 Jan 2017 18:23:55 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1

W dniu 09.01.2017 o 17:24, Cédric Le Goater pisze:
Instead, we can simply set the irq level when unselecting the slave
devices. This change prepares ground for a subsequent cleanup of the
aspeed_smc_update_cs() routine which uselessly loops on all slaves to
update their status.

Signed-off-by: Cédric Le Goater <address@hidden>
---
  hw/ssi/aspeed_smc.c | 3 +--
  1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
index 8a7217d4df6c..205c0abfae98 100644
--- a/hw/ssi/aspeed_smc.c
+++ b/hw/ssi/aspeed_smc.c
@@ -424,6 +424,7 @@ static void aspeed_smc_reset(DeviceState *d)
      /* Unselect all slaves */
      for (i = 0; i < s->num_cs; ++i) {
          s->regs[s->r_ctrl0 + i] |= CTRL_CE_STOP_ACTIVE;
+        qemu_set_irq(s->cs_lines[i], true);
Does SMC support only flash chips with CS active LOW?
If yes:
Acked-by: Marcin Krzemiński <address@hidden>
      }
/* setup default segment register values for all */
@@ -431,8 +432,6 @@ static void aspeed_smc_reset(DeviceState *d)
          s->regs[R_SEG_ADDR0 + i] =
              aspeed_smc_segment_to_reg(&s->ctrl->segments[i]);
      }
-
-    aspeed_smc_update_cs(s);
  }
static uint64_t aspeed_smc_read(void *opaque, hwaddr addr, unsigned int size)



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