upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
296 lines
6.8 KiB
296 lines
6.8 KiB
/* -------------------------------------------------------------------- */
|
|
/* TQM8xxL Boards by TQ Components */
|
|
/* SC8xx Boards by SinoVee Microsystems */
|
|
/* -------------------------------------------------------------------- */
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#ifdef CONFIG_8xx
|
|
#include <mpc8xx.h>
|
|
#endif
|
|
#include <pcmcia.h>
|
|
|
|
#undef CONFIG_PCMCIA
|
|
|
|
#if defined(CONFIG_CMD_PCMCIA)
|
|
#define CONFIG_PCMCIA
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
|
|
#define CONFIG_PCMCIA
|
|
#endif
|
|
|
|
#if defined(CONFIG_PCMCIA) \
|
|
&& (defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx))
|
|
|
|
#if defined(CONFIG_VIRTLAB2)
|
|
#define PCMCIA_BOARD_MSG "Virtlab2"
|
|
#elif defined(CONFIG_TQM8xxL)
|
|
#define PCMCIA_BOARD_MSG "TQM8xxL"
|
|
#elif defined(CONFIG_SVM_SC8xx)
|
|
#define PCMCIA_BOARD_MSG "SC8xx"
|
|
#endif
|
|
|
|
#if defined(CONFIG_NSCU)
|
|
|
|
static inline void power_config(int slot) {}
|
|
static inline void power_off(int slot) {}
|
|
static inline void power_on_5_0(int slot) {}
|
|
static inline void power_on_3_3(int slot) {}
|
|
|
|
#elif defined(CONFIG_VIRTLAB2)
|
|
|
|
static inline void power_config(int slot) {}
|
|
|
|
static inline void power_off(int slot)
|
|
{
|
|
out_be32(PCMCIA_CTRL, 0);
|
|
}
|
|
|
|
static inline void power_on_5_0(int slot)
|
|
{
|
|
/* Enable 5V Vccout */
|
|
out_be32(PCMCIA_CTRL, 2);
|
|
}
|
|
|
|
static inline void power_on_3_3(int slot)
|
|
{
|
|
/* Enable 3.3V Vccout */
|
|
out_be32(PCMCIA_CTRL, 1);
|
|
}
|
|
|
|
#else
|
|
|
|
static inline void power_config(int slot)
|
|
{
|
|
immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
|
|
/*
|
|
* Configure Port C pins for
|
|
* 5 Volts Enable and 3 Volts enable
|
|
*/
|
|
clrbits_be16(&immap->im_ioport.iop_pcpar, 0x0002 | 0x0004);
|
|
clrbits_be16(&immap->im_ioport.iop_pcso, 0x0002 | 0x0004);
|
|
}
|
|
|
|
static inline void power_off(int slot)
|
|
{
|
|
immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
|
|
clrbits_be16(&immap->im_ioport.iop_pcdat, 0x0002 | 0x0004);
|
|
}
|
|
|
|
static inline void power_on_5_0(int slot)
|
|
{
|
|
immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
|
|
setbits_be16(&immap->im_ioport.iop_pcdat, 0x0004);
|
|
setbits_be16(&immap->im_ioport.iop_pcdir, 0x0002 | 0x0004);
|
|
}
|
|
|
|
static inline void power_on_3_3(int slot)
|
|
{
|
|
immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
|
|
setbits_be16(&immap->im_ioport.iop_pcdat, 0x0002);
|
|
setbits_be16(&immap->im_ioport.iop_pcdir, 0x0002 | 0x0004);
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Function to retrieve the PIPR register, used for debuging purposes.
|
|
*/
|
|
static inline uint32_t debug_get_pipr(void)
|
|
{
|
|
uint32_t pipr = 0;
|
|
#ifdef DEBUG
|
|
immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
|
|
pipr = in_be32(&immap->im_pcmcia.pcmc_pipr);
|
|
#endif
|
|
return pipr;
|
|
}
|
|
|
|
|
|
static inline int check_card_is_absent(int slot)
|
|
{
|
|
immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
|
|
uint32_t pipr = in_be32(&immap->im_pcmcia.pcmc_pipr);
|
|
return pipr & (0x18000000 >> (slot << 4));
|
|
}
|
|
|
|
#ifdef NSCU_OE_INV
|
|
#define NSCU_GCRX_CXOE 0
|
|
#else
|
|
#define NSCU_GCRX_CXOE __MY_PCMCIA_GCRX_CXOE
|
|
#endif
|
|
|
|
int pcmcia_hardware_enable(int slot)
|
|
{
|
|
immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
|
|
uint reg, mask;
|
|
|
|
debug("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
|
|
|
|
udelay(10000);
|
|
|
|
/*
|
|
* Configure SIUMCR to enable PCMCIA port B
|
|
* (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
|
|
*/
|
|
|
|
/* Set DBGC to 00 */
|
|
clrbits_be32(&immap->im_siu_conf.sc_siumcr, SIUMCR_DBGC11);
|
|
|
|
/* Clear interrupt state, and disable interrupts */
|
|
out_be32(&immap->im_pcmcia.pcmc_pscr, PCMCIA_MASK(slot));
|
|
clrbits_be32(&immap->im_pcmcia.pcmc_per, PCMCIA_MASK(slot));
|
|
|
|
/*
|
|
* Disable interrupts, DMA, and PCMCIA buffers
|
|
* (isolate the interface) and assert RESET signal
|
|
*/
|
|
debug("Disable PCMCIA buffers and assert RESET\n");
|
|
reg = 0;
|
|
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
|
|
reg |= NSCU_GCRX_CXOE;
|
|
|
|
PCMCIA_PGCRX(slot) = reg;
|
|
udelay(500);
|
|
|
|
power_config(slot);
|
|
power_off(slot);
|
|
|
|
/*
|
|
* Make sure there is a card in the slot, then configure the interface.
|
|
*/
|
|
udelay(10000);
|
|
reg = debug_get_pipr();
|
|
debug("[%d] %s: PIPR(%p)=0x%x\n", __LINE__, __FUNCTION__,
|
|
&immap->im_pcmcia.pcmc_pipr, reg);
|
|
|
|
if (check_card_is_absent(slot)) {
|
|
printf (" No Card found\n");
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Power On.
|
|
*/
|
|
mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
|
|
reg = in_be32(&immap->im_pcmcia.pcmc_pipr);
|
|
debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
|
|
reg,
|
|
(reg & PCMCIA_VS1(slot)) ? "n" : "ff",
|
|
(reg & PCMCIA_VS2(slot)) ? "n" : "ff");
|
|
|
|
if ((reg & mask) == mask) {
|
|
power_on_5_0(slot);
|
|
puts (" 5.0V card found: ");
|
|
} else {
|
|
power_on_3_3(slot);
|
|
puts (" 3.3V card found: ");
|
|
}
|
|
|
|
#if 0
|
|
/* VCC switch error flag, PCMCIA slot INPACK_ pin */
|
|
cp->cp_pbdir &= ~(0x0020 | 0x0010);
|
|
cp->cp_pbpar &= ~(0x0020 | 0x0010);
|
|
udelay(500000);
|
|
#endif
|
|
|
|
udelay(1000);
|
|
debug("Enable PCMCIA buffers and stop RESET\n");
|
|
reg = PCMCIA_PGCRX(slot);
|
|
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
|
|
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
|
|
reg &= ~NSCU_GCRX_CXOE;
|
|
|
|
PCMCIA_PGCRX(slot) = reg;
|
|
|
|
udelay(250000); /* some cards need >150 ms to come up :-( */
|
|
|
|
debug("# hardware_enable done\n");
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
#if defined(CONFIG_CMD_PCMCIA)
|
|
int pcmcia_hardware_disable(int slot)
|
|
{
|
|
u_long reg;
|
|
|
|
debug("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
|
|
|
|
/* remove all power */
|
|
power_off(slot);
|
|
|
|
debug("Disable PCMCIA buffers and assert RESET\n");
|
|
reg = 0;
|
|
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
|
|
reg |= NSCU_GCRX_CXOE; /* active low */
|
|
|
|
PCMCIA_PGCRX(slot) = reg;
|
|
|
|
udelay(10000);
|
|
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
int pcmcia_voltage_set(int slot, int vcc, int vpp)
|
|
{
|
|
#ifndef CONFIG_NSCU
|
|
u_long reg;
|
|
uint32_t pipr = 0;
|
|
|
|
debug("voltage_set: " PCMCIA_BOARD_MSG
|
|
" Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
|
|
'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
|
|
|
|
/*
|
|
* Disable PCMCIA buffers (isolate the interface)
|
|
* and assert RESET signal
|
|
*/
|
|
debug("Disable PCMCIA buffers and assert RESET\n");
|
|
reg = PCMCIA_PGCRX(slot);
|
|
reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */
|
|
reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
|
|
reg |= NSCU_GCRX_CXOE; /* active low */
|
|
|
|
PCMCIA_PGCRX(slot) = reg;
|
|
udelay(500);
|
|
|
|
debug("PCMCIA power OFF\n");
|
|
power_config(slot);
|
|
power_off(slot);
|
|
|
|
switch(vcc) {
|
|
case 0: break;
|
|
case 33: power_on_3_3(slot); break;
|
|
case 50: power_on_5_0(slot); break;
|
|
default: goto done;
|
|
}
|
|
|
|
/* Checking supported voltages */
|
|
pipr = debug_get_pipr();
|
|
debug("PIPR: 0x%x --> %s\n", pipr,
|
|
(pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
|
|
|
|
if (vcc)
|
|
debug("PCMCIA powered at %sV\n", (vcc == 50) ? "5.0" : "3.3");
|
|
else
|
|
debug("PCMCIA powered down\n");
|
|
|
|
done:
|
|
debug("Enable PCMCIA buffers and stop RESET\n");
|
|
reg = PCMCIA_PGCRX(slot);
|
|
reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
|
|
reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
|
|
reg &= ~NSCU_GCRX_CXOE; /* active low */
|
|
|
|
PCMCIA_PGCRX(slot) = reg;
|
|
udelay(500);
|
|
|
|
debug("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", slot+'A');
|
|
#endif /* CONFIG_NSCU */
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_PCMCIA && (CONFIG_TQM8xxL || CONFIG_SVM_SC8xx) */
|
|
|