uint32_t periph_freq;
/* SDRAM controller */
uint32_t bcr1;
- uint32_t bcr2;
+ uint16_t bcr2;
+ uint16_t bcr3;
+ uint32_t bcr4;
uint16_t rfcr;
+ /* PCMCIA controller */
+ uint16_t pcr;
/* IO ports */
uint16_t gpioic;
uint32_t pctra;
struct intc_desc intc;
} SH7750State;
-
+static int inline has_bcr3_and_bcr4(SH7750State * s)
+{
+ return (s->cpu->features & SH_FEATURE_BCR3_AND_BCR4);
+}
/**********************************************************************
I/O ports
**********************************************************************/
switch (addr) {
case SH7750_BCR2_A7:
return s->bcr2;
+ case SH7750_BCR3_A7:
+ if(!has_bcr3_and_bcr4(s))
+ error_access("word read", addr);
+ return s->bcr3;
case SH7750_FRQCR_A7:
return 0;
+ case SH7750_PCR_A7:
+ return s->pcr;
case SH7750_RFCR_A7:
fprintf(stderr,
"Read access to refresh count register, incrementing\n");
return porta_lines(s);
case SH7750_PDTRB_A7:
return portb_lines(s);
+ case SH7750_RTCOR_A7:
+ case SH7750_RTCNT_A7:
+ case SH7750_RTCSR_A7:
+ ignore_access("word read", addr);
+ return 0;
default:
error_access("word read", addr);
assert(0);
case SH7750_BCR1_A7:
return s->bcr1;
case SH7750_BCR4_A7:
+ if(!has_bcr3_and_bcr4(s))
+ error_access("long read", addr);
+ return s->bcr4;
case SH7750_WCR1_A7:
case SH7750_WCR2_A7:
case SH7750_WCR3_A7:
}
}
+#define is_in_sdrmx(a, x) (a >= SH7750_SDMR ## x ## _A7 \
+ && a <= (SH7750_SDMR ## x ## _A7 + SH7750_SDMR ## x ## _REGNB))
static void sh7750_mem_writeb(void *opaque, target_phys_addr_t addr,
uint32_t mem_value)
{
- switch (addr) {
- /* PRECHARGE ? XXXXX */
- case SH7750_PRECHARGE0_A7:
- case SH7750_PRECHARGE1_A7:
+
+ if (is_in_sdrmx(addr, 2) || is_in_sdrmx(addr, 3)) {
ignore_access("byte write", addr);
return;
- default:
- error_access("byte write", addr);
- assert(0);
}
+
+ error_access("byte write", addr);
+ assert(0);
}
static void sh7750_mem_writew(void *opaque, target_phys_addr_t addr,
s->bcr2 = mem_value;
return;
case SH7750_BCR3_A7:
- case SH7750_RTCOR_A7:
+ if(!has_bcr3_and_bcr4(s))
+ error_access("word write", addr);
+ s->bcr3 = mem_value;
+ return;
+ case SH7750_PCR_A7:
+ s->pcr = mem_value;
+ return;
case SH7750_RTCNT_A7:
+ case SH7750_RTCOR_A7:
case SH7750_RTCSR_A7:
ignore_access("word write", addr);
return;
s->bcr1 = mem_value;
return;
case SH7750_BCR4_A7:
+ if(!has_bcr3_and_bcr4(s))
+ error_access("long write", addr);
+ s->bcr4 = mem_value;
+ return;
case SH7750_WCR1_A7:
case SH7750_WCR2_A7:
case SH7750_WCR3_A7:
#define SH7750_RFCR_KEY 0xA400 /* RFCR write key */
+/* Synchronous DRAM mode registers - SDMR */
+#define SH7750_SDMR2_REGOFS 0x900000 /* base offset */
+#define SH7750_SDMR2_REGNB 0x0FFC /* nb of register */
+#define SH7750_SDMR2 SH7750_P4_REG32(SH7750_SDMR2_REGOFS)
+#define SH7750_SDMR2_A7 SH7750_A7_REG32(SH7750_SDMR2_REGOFS)
+
+#define SH7750_SDMR3_REGOFS 0x940000 /* offset */
+#define SH7750_SDMR3_REGNB 0x0FFC /* nb of register */
+#define SH7750_SDMR3 SH7750_P4_REG32(SH7750_SDMR3_REGOFS)
+#define SH7750_SDMR3_A7 SH7750_A7_REG32(SH7750_SDMR3_REGOFS)
+
/*
* Direct Memory Access Controller (DMAC)
*/
*/
#define SH7750_BCR3_A7 0x1f800050
#define SH7750_BCR4_A7 0x1e0a00f0
-#define SH7750_PRECHARGE0_A7 0x1f900088
-#define SH7750_PRECHARGE1_A7 0x1f940088
#endif