fc8e50e349
The stuff below cleans up the code attempting to remap the whole cpm2_immr early, as well as places happily assuming that fact. This is more like the 2.4 legacy stuff, and is at least confusing and unclear now. To keep the world comfortable, a new mechanism is introduced: before accessing specific immr register/register set, one needs to map it, using cpm2_map(<reg>), for instance, access to CPM command register will look like volatile cpm_cpm2_t *cp = cpm2_map(im_cpm); keeping the code clear, yet without "already defined somewhere" cpm2_immr. So far, unmapping code is not implemented, but it's not a big deal to add it, if the whole idea makes sense. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
46 lines
912 B
C
46 lines
912 B
C
/*
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* linux/drivers/serial/cpm_uart_cpm2.h
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*
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* Driver for CPM (SCC/SMC) serial ports
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*
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* definitions for cpm2
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*
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*/
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#ifndef CPM_UART_CPM2_H
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#define CPM_UART_CPM2_H
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#include <asm/cpm2.h>
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/* defines for IRQs */
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#define SMC1_IRQ SIU_INT_SMC1
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#define SMC2_IRQ SIU_INT_SMC2
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#define SCC1_IRQ SIU_INT_SCC1
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#define SCC2_IRQ SIU_INT_SCC2
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#define SCC3_IRQ SIU_INT_SCC3
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#define SCC4_IRQ SIU_INT_SCC4
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/* the CPM address */
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#define CPM_ADDR CPM_MAP_ADDR
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static inline void cpm_set_brg(int brg, int baud)
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{
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cpm_setbrg(brg, baud);
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}
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static inline void cpm_set_scc_fcr(volatile scc_uart_t * sup)
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{
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sup->scc_genscc.scc_rfcr = CPMFCR_GBL | CPMFCR_EB;
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sup->scc_genscc.scc_tfcr = CPMFCR_GBL | CPMFCR_EB;
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}
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static inline void cpm_set_smc_fcr(volatile smc_uart_t * up)
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{
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up->smc_rfcr = CPMFCR_GBL | CPMFCR_EB;
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up->smc_tfcr = CPMFCR_GBL | CPMFCR_EB;
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}
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#define DPRAM_BASE ((unsigned char *)cpm_dpram_addr(0))
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#endif
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