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ARMV7: S5P: serial: support the s5pc210 

This patch is for s5pc210 support.
Due to the resigter of baudrate is changed from slot to value,
add both of them to uart structure.

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Minkyu Kang 2010-09-28 14:35:02 +09:00
parent 1727e21698
commit 1628cfc4fe
2 changed files with 16 additions and 4 deletions
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14
arch/arm/include/asm/arch-s5pc1xx/uart.h
View File

@ -24,6 +24,12 @@
#define __ASM_ARCH_UART_H_
#ifndef __ASSEMBLY__
/* baudrate rest value */
union br_rest {
unsigned short slot; /* udivslot */
unsigned char value; /* ufracval */
};
struct s5p_uart {
unsigned int ulcon;
unsigned int ucon;
@ -38,10 +44,12 @@ struct s5p_uart {
unsigned char urxh;
unsigned char res2[3];
unsigned int ubrdiv;
unsigned short udivslot;
unsigned char res3[2];
unsigned char res4[0x3d0];
union br_rest rest;
unsigned char res3[0x3d0];
};
static int use_divslot = 1;
#endif /* __ASSEMBLY__ */
#endif

6
drivers/serial/serial_s5p.c
View File

@ -70,7 +70,11 @@ void serial_setbrg_dev(const int dev_index)
val = uclk / baudrate;
writel(val / 16 - 1, &uart->ubrdiv);
writew(udivslot[val % 16], &uart->udivslot);
if (use_divslot)
writew(udivslot[val % 16], &uart->rest.slot);
else
writeb(val % 16, &uart->rest.value);
}
/*