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dm: ns16550: Use an address instead of a pointer for the uart base

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It is inconvenient to have to use casts when specifying platform data. Also
it is not strictly correct, since we should use map_sysmem() to convert an
address to a pointer.

Adjust the platform data to use an address.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
This commit is contained in:
Simon Glass 2014-10-22 21:37:04 -06:00
parent aea2be2012
commit 167efe01bc
2 changed files with 4 additions and 4 deletions
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6
drivers/serial/ns16550.c
View file

@ -61,7 +61,7 @@ static void ns16550_writeb(NS16550_t port, int offset, int value)
unsigned char *addr; unsigned char *addr;
offset *= 1 << plat->reg_shift; offset *= 1 << plat->reg_shift;
addr = plat->base + offset; addr = map_sysmem(plat->base, 0) + offset;
/* /*
* As far as we know it doesn't make sense to support selection of * 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. * these options at run-time, so use the existing CONFIG options.
@ -85,7 +85,7 @@ static int ns16550_readb(NS16550_t port, int offset)
unsigned char *addr; unsigned char *addr;
offset *= 1 << plat->reg_shift; offset *= 1 << plat->reg_shift;
addr = plat->base + offset; addr = map_sysmem(plat->base, 0) + offset;
#ifdef CONFIG_SYS_NS16550_PORT_MAPPED #ifdef CONFIG_SYS_NS16550_PORT_MAPPED
return inb(addr); return inb(addr);
#elif defined(CONFIG_SYS_NS16550_MEM32) && !defined(CONFIG_SYS_BIG_ENDIAN) #elif defined(CONFIG_SYS_NS16550_MEM32) && !defined(CONFIG_SYS_BIG_ENDIAN)
@ -291,7 +291,7 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
if (addr == FDT_ADDR_T_NONE) if (addr == FDT_ADDR_T_NONE)
return -EINVAL; return -EINVAL;
plat->base = (unsigned char *)addr; plat->base = addr;
plat->reg_shift = fdtdec_get_int(gd->fdt_blob, dev->of_offset, plat->reg_shift = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
"reg-shift", 1); "reg-shift", 1);
com_port->plat = plat; com_port->plat = plat;

2
include/ns16550.h
View file

@ -53,7 +53,7 @@
* @clock: UART base clock speed in Hz * @clock: UART base clock speed in Hz
*/ */
struct ns16550_platdata { struct ns16550_platdata {
unsigned char *base; unsigned long base;
int reg_shift; int reg_shift;
int clock; int clock;
}; };