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v0.8.1
https://github.com/torvalds/linux
02 December 2023, 22:23:51 UTC
Revision 9448732f6c9ef4932b226056338d1084f3669752 authored by Sergei Shtylyov on 13 December 2006, 08:35:49 UTC, committed by Linus Torvalds on 13 December 2006, 17:05:55 UTC 
[PATCH] ide: fix HPT37x timing tables
 
Fix/remove bad/unused timing tables: HPT370/A 66 MHz tables weren't really
needed (the chips are not UltraATA/133 capable and shouldn't support 66 MHz
PCI) and had many modes over- and underclocked, HPT372 33 MHz table was in
fact for 66 MHz and 50 MHz table missed UltraDMA mode 6, HPT374 33 MHz table
was really for 50 MHz...  (Actually, HPT370/A 33 MHz tables also have issues.
e.g.  HPT370 has PIO modes 0/1 overlocked.)

There's also no need in the separate HPT374 tables because HPT372 timings
should be the same (and those tables has UltraDMA mode 6 which HPT374 supports
depending on HPT374_ALLOW_ATA133_6 #define)...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent 836c006
Raw File
Tip revision: 9448732f6c9ef4932b226056338d1084f3669752 authored by Sergei Shtylyov on 13 December 2006, 08:35:49 UTC
[PATCH] ide: fix HPT37x timing tables
Tip revision: 9448732
pc_serial.h 
/*
 * include/asm-ppc/pc_serial.h
 *
 * This is basically a copy of include/asm-i386/serial.h.
 * It is used on platforms which have an ISA bus and thus are likely
 * to have PC-style serial ports at the legacy I/O port addresses.
 * It also includes the definitions for the fourport, accent, boca
 * and hub6 multiport serial cards, although I have never heard of
 * anyone using any of those on a PPC platform.  -- paulus
 */


/*
 * This assumes you have a 1.8432 MHz clock for your UART.
 *
 * It'd be nice if someone built a serial card with a 24.576 MHz
 * clock, since the 16550A is capable of handling a top speed of 1.5
 * megabits/second; but this requires the faster clock.
 */
#define BASE_BAUD ( 1843200 / 16 )

#ifdef CONFIG_SERIAL_MANY_PORTS
#define RS_TABLE_SIZE  64
#else
#define RS_TABLE_SIZE  4
#endif

/* Standard COM flags (except for COM4, because of the 8514 problem) */
#ifdef CONFIG_SERIAL_DETECT_IRQ
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
#else
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
#endif

#define SERIAL_PORT_DFNS			\
	/* UART CLK   PORT IRQ     FLAGS        */			\
	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */	\
	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },	/* ttyS1 */	\
	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },	/* ttyS2 */	\
	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },	/* ttyS3 */
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