Serial driver patch for the PMC-Sierra MSP71xx devices.
There are three different fixes:
1. Fix for DesignWare APB THRE errata:
In brief, this is a non-standard 16550 in that the THRE interrupt
will not re-assert itself simply by disabling and re-enabling the
THRI bit in the IER, it is only
Hello.
Andrew Morton wrote:
+ status = *(volatile u32 *)up->port.private_data;
It distresses me that this patch uses a variable which this patch
doesn't initialise anywhere. It isn't complete.
I assume this gets passed via early_serial_setup(). Marc?
The
Hello.
Andrew Morton wrote:
+ status = *(volatile u32 *)up-port.private_data;
It distresses me that this patch uses a variable which this patch
doesn't initialise anywhere. It isn't complete.
I assume this gets passed via early_serial_setup(). Marc?
The
Serial driver patch for the PMC-Sierra MSP71xx devices.
There are three different fixes:
1. Fix for DesignWare APB THRE errata:
In brief, this is a non-standard 16550 in that the THRE interrupt
will not re-assert itself simply by disabling and re-enabling the
THRI bit in the IER, it is only
On Thu, 15 Feb 2007 13:26:29 -0600
Marc St-Jean <[EMAIL PROTECTED]> wrote:
> + status = *(volatile u32 *)up->port.private_data;
It distresses me that this patch uses a variable which this patch
doesn't initialise anywhere. It isn't complete.
The sub-driver code whch sets up
Hello.
Marc St-Jean wrote:
There are three different fixes:
1. Fix for DesignWare APB THRE errata:
In brief, this is a non-standard 16550 in that the THRE interrupt
will not re-assert itself simply by disabling and re-enabling the
THRI bit in the IER, it is only re-enabled if a character is
Seventh attempt at the serial driver patch for the PMC-Sierra
MSP71xx devices.
There are three different fixes:
1. Fix for DesignWare APB THRE errata:
In brief, this is a non-standard 16550 in that the THRE interrupt
will not re-assert itself simply by disabling and re-enabling the
THRI bit in
Seventh attempt at the serial driver patch for the PMC-Sierra
MSP71xx devices.
There are three different fixes:
1. Fix for DesignWare APB THRE errata:
In brief, this is a non-standard 16550 in that the THRE interrupt
will not re-assert itself simply by disabling and re-enabling the
THRI bit in
Hello.
Marc St-Jean wrote:
There are three different fixes:
1. Fix for DesignWare APB THRE errata:
In brief, this is a non-standard 16550 in that the THRE interrupt
will not re-assert itself simply by disabling and re-enabling the
THRI bit in the IER, it is only re-enabled if a character is
On Thu, 15 Feb 2007 13:26:29 -0600
Marc St-Jean [EMAIL PROTECTED] wrote:
+ status = *(volatile u32 *)up-port.private_data;
It distresses me that this patch uses a variable which this patch
doesn't initialise anywhere. It isn't complete.
The sub-driver code whch sets up
Fifth attempt at the serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for DesignWare THRE errata
- Dropped our fix since the "8250-uart-backup-timer.patch" in the "mm"
tree also fixes it. This patch needs to be applied on top of "mm" patch.
2. Fix
Fifth attempt at the serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for DesignWare THRE errata
- Dropped our fix since the 8250-uart-backup-timer.patch in the mm
tree also fixes it. This patch needs to be applied on top of mm patch.
2. Fix for Busy
Hello.
Marc St-Jean wrote:
Fourth attempt at the serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for DesignWare THRE errata
- Dropped our fix since the "8250-uart-backup-timer.patch" in the "mm"
tree also fixes it. This patch needs to be applied
Hello.
Marc St-Jean wrote:
Fourth attempt at the serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for DesignWare THRE errata
- Dropped our fix since the 8250-uart-backup-timer.patch in the mm
tree also fixes it. This patch needs to be applied on
Fourth attempt at the serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for DesignWare THRE errata
- Dropped our fix since the "8250-uart-backup-timer.patch" in the "mm"
tree also fixes it. This patch needs to be applied on top of "mm" patch.
2. Fix
Fourth attempt at the serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for DesignWare THRE errata
- Dropped our fix since the 8250-uart-backup-timer.patch in the mm
tree also fixes it. This patch needs to be applied on top of mm patch.
2. Fix for
> unsigned char hub6; /* this should be in
> the 8250 driver */
> unsigned char unused[3];
> + void*data; /* generic
> platform data pointer */
> };
Convention is "private_data"
>
> /*
> diff
Third attempt at the serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for DesignWare THRE errata
- Dropped our fix since the "8250-uart-backup-timer.patch" in the "mm"
tree also fixes it. This patch needs to be applied on top of it.
2. Fix for Busy
Third attempt at the serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for DesignWare THRE errata
- Dropped our fix since the 8250-uart-backup-timer.patch in the mm
tree also fixes it. This patch needs to be applied on top of it.
2. Fix for Busy
unsigned char hub6; /* this should be in
the 8250 driver */
unsigned char unused[3];
+ void*data; /* generic
platform data pointer */
};
Convention is private_data
/*
diff --git
Marc St-Jean wrote:
Here is my second attempt at the serial driver patch for the
PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for THRE errata
- I verified the UART_BUG_TXEN fix does not help with this erratum.
- I left our current fix in until I get our platform booting on
Marc St-Jean wrote:
Here is my second attempt at the serial driver patch for the
PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for THRE errata
- I verified the UART_BUG_TXEN fix does not help with this erratum.
- I left our current fix in until I get our platform booting on
Here is my second attempt at the serial driver patch for the
PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for THRE errata
- I verified the UART_BUG_TXEN fix does not help with this erratum.
- I left our current fix in until I get our platform booting on
2.6.20-rc4 to try the
Here is my second attempt at the serial driver patch for the
PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for THRE errata
- I verified the UART_BUG_TXEN fix does not help with this erratum.
- I left our current fix in until I get our platform booting on
2.6.20-rc4 to try the
> There are three different fixes:
> 1. Fix for THRE errata
That should be handled anyway. The current code actually spots this and
uses a backup timer for dodgy UARTS
> 2. Fix for Busy Detect on LCR write
> 3. Workaround for interrupt/data concurrency issue
> case UPIO_MEM:
> +#ifdef
CCing linux-kernel as per AC's suggestion...
-Original Message-
From: Sergei Shtylyov
Sent: Friday, January 19, 2007 9:05 AM
To: Marc St-Jean
Cc: [EMAIL PROTECTED]; linux-serial@vger.kernel.org
Subject: Re: [PATCH] serial driver PMC MSP71xx, kernel linux-mips.git master
Hello.
Marc St
CCing linux-kernel as per AC's suggestion...
On Thu, Jan 18, 2007 at 04:23:01PM -0800, Marc St-Jean wrote:
> Index: linux_2_6/drivers/serial/8250.c
> ===
> RCS file: linux_2_6/drivers/serial/8250.c,v retrieving revision
> 1.1.1.7
CCing linux-kernel as per AC's suggestion...
Here is a serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for THRE errata
2. Fix for Busy Detect on LCR write
3. Workaround for interrupt/data concurrency issue
The first fix is handled cleanly using a
CCing linux-kernel as per AC's suggestion...
Here is a serial driver patch for the PMC-Sierra MSP71xx device.
There are three different fixes:
1. Fix for THRE errata
2. Fix for Busy Detect on LCR write
3. Workaround for interrupt/data concurrency issue
The first fix is handled cleanly using a
CCing linux-kernel as per AC's suggestion...
On Thu, Jan 18, 2007 at 04:23:01PM -0800, Marc St-Jean wrote:
Index: linux_2_6/drivers/serial/8250.c
===
RCS file: linux_2_6/drivers/serial/8250.c,v retrieving revision
1.1.1.7
CCing linux-kernel as per AC's suggestion...
-Original Message-
From: Sergei Shtylyov
Sent: Friday, January 19, 2007 9:05 AM
To: Marc St-Jean
Cc: [EMAIL PROTECTED]; linux-serial@vger.kernel.org
Subject: Re: [PATCH] serial driver PMC MSP71xx, kernel linux-mips.git master
Hello.
Marc St
There are three different fixes:
1. Fix for THRE errata
That should be handled anyway. The current code actually spots this and
uses a backup timer for dodgy UARTS
2. Fix for Busy Detect on LCR write
3. Workaround for interrupt/data concurrency issue
case UPIO_MEM:
+#ifdef
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