linux-stable/drivers/serial/cpm_uart/cpm_uart_cpm1.h
Jochen Friedrich d214602804 [POWERPC] Fix cpm_uart driver for cpm1 machines
in cpm_uart_cpm1.h, DPRAM_BASE is assigned an address derived from cpmp.
On ARC=ppc, this is a physical address with 1:1 DMA mapping which can't
be used for arithmetric compare operations with virtual addresses
returned by cpm_dpram_addr. This patch changes the assignment to use
cpm_dpram_addr as well, like in cpm_uart_cpm2.h.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-28 10:26:30 -05:00

42 lines
916 B
C

/*
* linux/drivers/serial/cpm_uart/cpm_uart_cpm1.h
*
* Driver for CPM (SCC/SMC) serial ports
*
* definitions for cpm1
*
*/
#ifndef CPM_UART_CPM1_H
#define CPM_UART_CPM1_H
#include <asm/commproc.h>
/* defines for IRQs */
#define SMC1_IRQ (CPM_IRQ_OFFSET + CPMVEC_SMC1)
#define SMC2_IRQ (CPM_IRQ_OFFSET + CPMVEC_SMC2)
#define SCC1_IRQ (CPM_IRQ_OFFSET + CPMVEC_SCC1)
#define SCC2_IRQ (CPM_IRQ_OFFSET + CPMVEC_SCC2)
#define SCC3_IRQ (CPM_IRQ_OFFSET + CPMVEC_SCC3)
#define SCC4_IRQ (CPM_IRQ_OFFSET + CPMVEC_SCC4)
static inline void cpm_set_brg(int brg, int baud)
{
cpm_setbrg(brg, baud);
}
static inline void cpm_set_scc_fcr(volatile scc_uart_t * sup)
{
sup->scc_genscc.scc_rfcr = SMC_EB;
sup->scc_genscc.scc_tfcr = SMC_EB;
}
static inline void cpm_set_smc_fcr(volatile smc_uart_t * up)
{
up->smc_rfcr = SMC_EB;
up->smc_tfcr = SMC_EB;
}
#define DPRAM_BASE ((unsigned char *)cpm_dpram_addr(0))
#endif