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kmp204x: handle dip-switch for factory settings 

Add readout of dip-switch to revert to factory settings.
If one or more dip-switch are set, launch bank 0 that contains the
bootloader to do the required action.

Signed-off-by: Stefan Bigler <stefan.bigler@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
This commit is contained in:
Stefan Bigler 2014-05-02 10:49:27 +02:00 committed by York Sun
parent a53e65d053
commit 4921a149e1
3 changed files with 30 additions and 0 deletions
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15
board/keymile/kmp204x/kmp204x.c
View File

@ -116,6 +116,9 @@ int board_early_init_r(void)
/* enable the Unit LED (red) & Boot LED (on) */
qrio_set_leds();
/* enable Application Buffer */
qrio_enable_app_buffer();
return ret;
}
@ -171,6 +174,18 @@ int hush_init_var(void)
#if defined(CONFIG_LAST_STAGE_INIT)
int last_stage_init(void)
{
#if defined(CONFIG_KMCOGE4)
/* on KMCOGE4, the BFTIC4 is on the LBAPP2 */
struct bfticu_iomap *bftic4 =
(struct bfticu_iomap *)CONFIG_SYS_LBAPP2_BASE;
u8 dip_switch = in_8((u8 *)&(bftic4->mswitch)) & BFTICU_DIPSWITCH_MASK;
if (dip_switch != 0) {
/* start bootloader */
puts("DIP: Enabled\n");
setenv("actual_bank", "0");
}
#endif
set_km_env();
return 0;
}

1
board/keymile/kmp204x/kmp204x.h
View File

@ -22,5 +22,6 @@ void qrio_gpio_direction_input(u8 port_off, u8 gpio_nr);
void qrio_prst(u8 bit, bool en, bool wden);
void qrio_prstcfg(u8 bit, u8 mode);
void qrio_set_leds(void);
void qrio_enable_app_buffer(void);
void pci_of_setup(void *blob, bd_t *bd);

14
board/keymile/kmp204x/qrio.c
View File

@ -159,3 +159,17 @@ void qrio_set_leds(void)
ctrlh |= (CTRLH_WRL_BOOT | CTRLH_WRL_UNITRUN);
out_8(qrio_base + CTRLH_OFF, ctrlh);
}
#define CTRLL_OFF 0x03
#define CTRLL_WRB_BUFENA 0x20
void qrio_enable_app_buffer(void)
{
u8 ctrll;
void __iomem *qrio_base = (void *)CONFIG_SYS_QRIO_BASE;
/* enable application buffer */
ctrll = in_8(qrio_base + CTRLL_OFF);
ctrll |= (CTRLL_WRB_BUFENA);
out_8(qrio_base + CTRLL_OFF, ctrll);
}