From ea909b7604306a400ee3abf57e2fa7b2dde5dde1 Mon Sep 17 00:00:00 2001 From: wdenk Date: Thu, 21 Nov 2002 23:11:29 +0000 Subject: * Added support for both PCMCIA slots (at the same time!) on MPC8xx * Patch by Rod Boyce, 21 Nov 2002: fix PCMCIA on MBX8xx board * Patch by Pierre Aubert , 21 Nov 2002 Add CFG_CPM_POST_WORD_ADDR to make the offset of the bootmode word in DPRAM configurable --- common/cmd_pcmcia.c | 133 ++++++++++++++++++++++++++++++---------------------- 1 file changed, 76 insertions(+), 57 deletions(-) (limited to 'common') diff --git a/common/cmd_pcmcia.c b/common/cmd_pcmcia.c index 6d01e70..8b54585 100644 --- a/common/cmd_pcmcia.c +++ b/common/cmd_pcmcia.c @@ -80,7 +80,7 @@ static int voltage_set(int slot, int vcc, int vpp); static void print_funcid (int func); static void print_fixed (volatile uchar *p); static int identify (volatile uchar *p); -static int check_ide_device (void); +static int check_ide_device (int slot); #endif /* CONFIG_IDE_8xx_PCCARD */ static u_int m8xx_get_graycode(u_int size); @@ -139,6 +139,8 @@ int pcmcia_on (void) int i; u_long reg, base; pcmcia_win_t *win; + u_int slotbit; + u_int rc, slot; debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n"); @@ -152,36 +154,42 @@ int pcmcia_on (void) return (1); } + slotbit = PCMCIA_SLOT_x; for (i=0; ibr = base; +#if (PCMCIA_SOCKETS_NO == 2) + if (i == 4) /* Another slot starting from win 4 */ + slotbit = (slotbit ? PCMCIA_PSLOT_A : PCMCIA_PSLOT_B); +#endif switch (i) { #ifdef CONFIG_IDE_8xx_PCCARD + case 4: case 0: { /* map attribute memory */ win->or = ( PCMCIA_BSIZE_64M | PCMCIA_PPS_8 | PCMCIA_PRS_ATTR - | PCMCIA_SLOT_x + | slotbit | PCMCIA_PV | CFG_PCMCIA_TIMING ); break; } - + case 5: case 1: { /* map I/O window for data reg */ win->or = ( PCMCIA_BSIZE_1K | PCMCIA_PPS_16 | PCMCIA_PRS_IO - | PCMCIA_SLOT_x + | slotbit | PCMCIA_PV | CFG_PCMCIA_TIMING ); break; } - + case 6: case 2: { /* map I/O window for command/ctrl reg block */ win->or = ( PCMCIA_BSIZE_1K | PCMCIA_PPS_8 | PCMCIA_PRS_IO - | PCMCIA_SLOT_x + | slotbit | PCMCIA_PV | CFG_PCMCIA_TIMING ); break; @@ -198,19 +206,21 @@ int pcmcia_on (void) ++win; } - /* turn off voltage */ - if (voltage_set(_slot_, 0, 0)) - return (1); - - /* Enable external hardware */ - if (hardware_enable(_slot_)) - return (1); - + for (i = 0, rc = 0, slot = _slot_; i < PCMCIA_SOCKETS_NO; i++, slot = !slot) { + /* turn off voltage */ + if ((rc = voltage_set(slot, 0, 0))) + continue; + + /* Enable external hardware */ + if ((rc = hardware_enable(slot))) + continue; + #ifdef CONFIG_IDE_8xx_PCCARD - if (check_ide_device()) - return (1); + if ((rc = check_ide_device(i))) + continue; #endif - return (0); + } + return (rc); } /* ------------------------------------------------------------------------- */ @@ -258,11 +268,11 @@ static int pcmcia_off (void) #define MAX_TUPEL_SZ 512 #define MAX_FEATURES 4 -static int check_ide_device (void) +static int check_ide_device (int slot) { volatile uchar *ident = NULL; volatile uchar *feature_p[MAX_FEATURES]; - volatile uchar *p, *start; + volatile uchar *p, *start, *addr; int n_features = 0; uchar func_id = ~0; uchar code, len; @@ -270,9 +280,11 @@ static int check_ide_device (void) int found = 0; int i; - debug ("PCMCIA MEM: %08X\n", CFG_PCMCIA_MEM_ADDR); + addr = (volatile uchar *)(CFG_PCMCIA_MEM_ADDR + + CFG_PCMCIA_MEM_SIZE * (slot * 4)); + debug ("PCMCIA MEM: %08X\n", addr); - start = p = (volatile uchar *) CFG_PCMCIA_MEM_ADDR; + start = p = (volatile uchar *) addr; while ((p - start) < MAX_TUPEL_SZ) { @@ -336,7 +348,7 @@ static int check_ide_device (void) } /* set I/O area in config reg -> only valid for ARGOSY D5!!! */ - *((uchar *)(CFG_PCMCIA_MEM_ADDR + config_base)) = 1; + *((uchar *)(addr + config_base)) = 1; return (0); } @@ -564,7 +576,7 @@ static int hardware_enable(int slot) debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__, &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); - if (pcmp->pcmc_pipr & 0x00001800) { + if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { printf (" No Card found\n"); return (1); } @@ -791,7 +803,7 @@ static int hardware_enable(int slot) debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__, &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); - if (pcmp->pcmc_pipr & 0x00001800) { + if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { printf (" No Card found\n"); return (1); } @@ -1096,7 +1108,7 @@ static int hardware_enable(int slot) debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__, &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); - if (pcmp->pcmc_pipr & 0x00001800) { + if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { printf (" No Card found\n"); return (1); } @@ -1366,7 +1378,7 @@ static int hardware_enable(int slot) debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__, &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); - if (pcmp->pcmc_pipr & 0x00001800) { + if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { printf (" No Card found\n"); return (1); } @@ -1694,11 +1706,11 @@ static int hardware_enable (int slot) /* * Make sure there is a card in the slot, then configure the interface. */ - udelay (10000); - debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__, __FUNCTION__, - &(pcmp->pcmc_pipr), pcmp->pcmc_pipr); - - if (pcmp->pcmc_pipr & 0x00001800) { + udelay(10000); + debug ("[%d] %s: PIPR(%p)=0x%x\n", + __LINE__,__FUNCTION__, + &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); + if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { printf (" No Card found\n"); return (1); } @@ -1816,7 +1828,7 @@ static int hardware_enable(int slot) debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__, &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); - if (pcmp->pcmc_pipr & 0x00001800) { + if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { printf (" No Card found\n"); return (1); } @@ -2008,32 +2020,33 @@ static int hardware_enable(int slot) sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */ /* clear interrupt state, and disable interrupts */ - pcmp->pcmc_pscr = PCMCIA_MASK(_slot_); - pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_); + pcmp->pcmc_pscr = PCMCIA_MASK(slot); + pcmp->pcmc_per &= ~PCMCIA_MASK(slot); /* disable interrupts & DMA */ - PCMCIA_PGCRX(_slot_) = 0; + PCMCIA_PGCRX(slot) = 0; /* * Disable PCMCIA buffers (isolate the interface) * and assert RESET signal */ debug ("Disable PCMCIA buffers and assert RESET\n"); - reg = PCMCIA_PGCRX(_slot_); + reg = PCMCIA_PGCRX(slot); reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ - PCMCIA_PGCRX(_slot_) = reg; - udelay(500); + PCMCIA_PGCRX(slot) = reg; + udelay(2500); /* * Configure Port B pins for * 3 Volts enable */ - cp->cp_pbdir |= KUP4K_PCMCIA_B_3V3; - cp->cp_pbpar &= ~KUP4K_PCMCIA_B_3V3; - /* remove all power */ - cp->cp_pbdat |= KUP4K_PCMCIA_B_3V3; /* active low */ - + if (slot) { /* Slot A is built-in */ + cp->cp_pbdir |= KUP4K_PCMCIA_B_3V3; + cp->cp_pbpar &= ~KUP4K_PCMCIA_B_3V3; + /* remove all power */ + cp->cp_pbdat |= KUP4K_PCMCIA_B_3V3; /* active low */ + } /* * Make sure there is a card in the slot, then configure the interface. */ @@ -2041,7 +2054,7 @@ static int hardware_enable(int slot) debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__, &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); - if (pcmp->pcmc_pipr & 0x00001800) { + if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { printf (" No Card found\n"); return (1); } @@ -2049,6 +2062,7 @@ static int hardware_enable(int slot) /* * Power On. */ + printf("\n Slot %c:", 'A' + slot); mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot); reg = pcmp->pcmc_pipr; debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n", @@ -2058,7 +2072,8 @@ static int hardware_enable(int slot) if ((reg & mask) == mask) { puts (" 5.0V card found: NOT SUPPORTED !!!\n"); } else { - cp->cp_pbdat &= ~KUP4K_PCMCIA_B_3V3; + if(slot) + cp->cp_pbdat &= ~KUP4K_PCMCIA_B_3V3; puts (" 3.3V card found: "); } #if 0 @@ -2068,10 +2083,10 @@ static int hardware_enable(int slot) udelay(500000); #endif debug ("Enable PCMCIA buffers and stop RESET\n"); - reg = PCMCIA_PGCRX(_slot_); + reg = PCMCIA_PGCRX(slot); reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */ reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */ - PCMCIA_PGCRX(_slot_) = reg; + PCMCIA_PGCRX(slot) = reg; udelay(250000); /* some cards need >150 ms to come up :-( */ @@ -2097,16 +2112,17 @@ static int hardware_disable(int slot) cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm)); /* remove all power */ - cp->cp_pbdat |= DDC4000_PCMCIA_B_3V3; + if (slot) + cp->cp_pbdat |= KUP4K_PCMCIA_B_3V3; /* Configure PCMCIA General Control Register */ - PCMCIA_PGCRX(_slot_) = 0; + PCMCIA_PGCRX(slot) = 0; debug ("Disable PCMCIA buffers and assert RESET\n"); - reg = PCMCIA_PGCRX(_slot_); + reg = PCMCIA_PGCRX(slot); reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ - PCMCIA_PGCRX(_slot_) = reg; + PCMCIA_PGCRX(slot) = reg; udelay(10000); @@ -2128,6 +2144,9 @@ static int voltage_set(int slot, int vcc, int vpp) " Slot %c, Vcc=%d.%d, Vpp=%d.%d\n", 'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10); + if (!slot) /* Slot A is not configurable */ + return 0; + immap = (immap_t *)CFG_IMMR; pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm)); @@ -2137,10 +2156,10 @@ static int voltage_set(int slot, int vcc, int vpp) * and assert RESET signal */ debug ("Disable PCMCIA buffers and assert RESET\n"); - reg = PCMCIA_PGCRX(_slot_); + reg = PCMCIA_PGCRX(slot); reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ - PCMCIA_PGCRX(_slot_) = reg; + PCMCIA_PGCRX(slot) = reg; udelay(500); debug ("PCMCIA power OFF\n"); @@ -2166,21 +2185,21 @@ static int voltage_set(int slot, int vcc, int vpp) puts("PCMCIA: vcc not supported"); break; } - + udelay(10000); /* Checking supported voltages */ debug ("PIPR: 0x%x --> %s\n", pcmp->pcmc_pipr, - (pcmp->pcmc_pipr & 0x00008000) + (pcmp->pcmc_pipr & (0x80000000 >> (slot << 4))) ? "only 5 V --> NOT SUPPORTED" : "can do 3.3V"); debug ("Enable PCMCIA buffers and stop RESET\n"); - reg = PCMCIA_PGCRX(_slot_); + reg = PCMCIA_PGCRX(slot); reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */ reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */ - PCMCIA_PGCRX(_slot_) = reg; + PCMCIA_PGCRX(slot) = reg; udelay(500); debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", -- cgit v1.1