leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

kmp204x: Add support for the unit LEDs

Browse Source 
The unit LEDs are managed by the QRIO CPLD. This patch adds support for
accessing these LEDs in the QRIO.

The LEDs then are set to a correct boot state:
- UNIT-LED is red
- BOOT-LED is on.

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 10:48:41 +02:00 committed by York Sun
parent 5122dfae5d
commit a53e65d053
3 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
board/keymile/kmp204x/kmp204x.c
View File

@ -113,6 +113,9 @@ int board_early_init_r(void)
if (ret)
printf("error triggering PCIe FPGA config\n");
/* enable the Unit LED (red) & Boot LED (on) */
qrio_set_leds();
return ret;
}

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

@ -21,5 +21,6 @@ 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 pci_of_setup(void *blob, bd_t *bd);

15
board/keymile/kmp204x/qrio.c
View File

@ -144,3 +144,18 @@ void qrio_prstcfg(u8 bit, u8 mode)
out_be32(qrio_base + PRSTCFG_OFF, prstcfg);
}
#define CTRLH_OFF 0x02
#define CTRLH_WRL_BOOT 0x01
#define CTRLH_WRL_UNITRUN 0x02
void qrio_set_leds(void)
{
u8 ctrlh;
void __iomem *qrio_base = (void *)CONFIG_SYS_QRIO_BASE;
/* set UNIT LED to RED and BOOT LED to ON */
ctrlh = in_8(qrio_base + CTRLH_OFF);
ctrlh |= (CTRLH_WRL_BOOT | CTRLH_WRL_UNITRUN);
out_8(qrio_base + CTRLH_OFF, ctrlh);
}