leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

serial: ns16550: Add access functions that don't need platdata

Browse Source 
For the debug UART we need to be able to provide any parameters before
driver model is set up. Add parameters to the low-level access functions
to make this possible.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-01-26 18:27:08 -07:00
parent 2f964aa7b1
commit 765716744f
1 changed files with 34 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
drivers/serial/ns16550.c
View File

@ -55,6 +55,37 @@ DECLARE_GLOBAL_DATA_PTR;
#endif /* CONFIG_SYS_NS16550_IER */
#ifdef CONFIG_DM_SERIAL
static inline void serial_out_shift(unsigned char *addr, int shift, int value)
{
#ifdef CONFIG_SYS_NS16550_PORT_MAPPED
outb(value, (ulong)addr);
#elif defined(CONFIG_SYS_NS16550_MEM32) && !defined(CONFIG_SYS_BIG_ENDIAN)
out_le32(addr, value);
#elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_BIG_ENDIAN)
out_be32(addr, value);
#elif defined(CONFIG_SYS_BIG_ENDIAN)
writeb(value, addr + (1 << shift) - 1);
#else
writeb(value, addr);
#endif
}
static inline int serial_in_shift(unsigned char *addr, int shift)
{
#ifdef CONFIG_SYS_NS16550_PORT_MAPPED
return inb((ulong)addr);
#elif defined(CONFIG_SYS_NS16550_MEM32) && !defined(CONFIG_SYS_BIG_ENDIAN)
return in_le32(addr);
#elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_BIG_ENDIAN)
return in_be32(addr);
#elif defined(CONFIG_SYS_BIG_ENDIAN)
return readb(addr + (1 << reg_shift) - 1);
#else
return readb(addr);
#endif
}
static void ns16550_writeb(NS16550_t port, int offset, int value)
{
struct ns16550_platdata *plat = port->plat;
@ -66,17 +97,7 @@ static void ns16550_writeb(NS16550_t port, int offset, int value)
* As far as we know it doesn't make sense to support selection of
* these options at run-time, so use the existing CONFIG options.
*/
#ifdef CONFIG_SYS_NS16550_PORT_MAPPED
outb(value, (ulong)addr);
#elif defined(CONFIG_SYS_NS16550_MEM32) && !defined(CONFIG_SYS_BIG_ENDIAN)
out_le32(addr, value);
#elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_BIG_ENDIAN)
out_be32(addr, value);
#elif defined(CONFIG_SYS_BIG_ENDIAN)
writeb(value, addr + (1 << plat->reg_shift) - 1);
#else
writeb(value, addr);
#endif
serial_out_shift(addr, plat->reg_shift, value);
}
static int ns16550_readb(NS16550_t port, int offset)
@ -86,17 +107,8 @@ static int ns16550_readb(NS16550_t port, int offset)
offset *= 1 << plat->reg_shift;
addr = map_sysmem(plat->base, 0) + offset;
#ifdef CONFIG_SYS_NS16550_PORT_MAPPED
return inb((ulong)addr);
#elif defined(CONFIG_SYS_NS16550_MEM32) && !defined(CONFIG_SYS_BIG_ENDIAN)
return in_le32(addr);
#elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_BIG_ENDIAN)
return in_be32(addr);
#elif defined(CONFIG_SYS_BIG_ENDIAN)
return readb(addr + (1 << plat->reg_shift) - 1);
#else
return readb(addr);
#endif
return serial_in_shift(addr, plat->reg_shift);
}
/* We can clean these up once everything is moved to driver model */