diff options
| author | Scott Wood <scottwood@freescale.com> | 2015-03-20 19:28:29 -0700 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-04-23 16:46:51 -0700 |
| commit | 548cf52fd5be1a490807c2f8e5f218c9fbd4053a (patch) | |
| tree | 2dbef26f8a5e4599f0559d81732bfac515152862 /board/freescale/common | |
| parent | b2d5ac59859fa946e47fb6ab1f4f3486d4988680 (diff) | |
| download | blackbird-obmc-uboot-548cf52fd5be1a490807c2f8e5f218c9fbd4053a.tar.gz blackbird-obmc-uboot-548cf52fd5be1a490807c2f8e5f218c9fbd4053a.zip | |
freescale/qixis: Add support for booting from NAND
Use "qixis_reset nand" to reset the board to boot from NAND.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/common')
| -rw-r--r-- | board/freescale/common/qixis.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/board/freescale/common/qixis.c b/board/freescale/common/qixis.c index a49e3006d9..9f6b0e7f31 100644 --- a/board/freescale/common/qixis.c +++ b/board/freescale/common/qixis.c @@ -138,24 +138,23 @@ void qixis_bank_reset(void) QIXIS_WRITE(rcfg_ctl, QIXIS_RCFG_CTL_RECONFIG_START); } -/* Set the boot bank to the power-on default bank */ -void clear_altbank(void) +static void __maybe_unused set_lbmap(int lbmap) { u8 reg; reg = QIXIS_READ(brdcfg[0]); - reg = (reg & ~QIXIS_LBMAP_MASK) | QIXIS_LBMAP_DFLTBANK; + reg = (reg & ~QIXIS_LBMAP_MASK) | lbmap; QIXIS_WRITE(brdcfg[0], reg); } -/* Set the boot bank to the alternate bank */ -void set_altbank(void) +static void __maybe_unused set_rcw_src(int rcw_src) { u8 reg; - reg = QIXIS_READ(brdcfg[0]); - reg = (reg & ~QIXIS_LBMAP_MASK) | QIXIS_LBMAP_ALTBANK; - QIXIS_WRITE(brdcfg[0], reg); + reg = QIXIS_READ(dutcfg[1]); + reg = (reg & ~1) | (rcw_src & 1); + QIXIS_WRITE(dutcfg[1], reg); + QIXIS_WRITE(dutcfg[0], (rcw_src >> 1) & 0xff); } static void qixis_dump_regs(void) @@ -201,11 +200,22 @@ int qixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) int i; if (argc <= 1) { - clear_altbank(); + set_lbmap(QIXIS_LBMAP_DFLTBANK); qixis_reset(); } else if (strcmp(argv[1], "altbank") == 0) { - set_altbank(); + set_lbmap(QIXIS_LBMAP_ALTBANK); qixis_bank_reset(); + } else if (strcmp(argv[1], "nand") == 0) { +#ifdef QIXIS_LBMAP_NAND + QIXIS_WRITE(rst_ctl, 0x30); + QIXIS_WRITE(rcfg_ctl, 0); + set_lbmap(QIXIS_LBMAP_NAND); + set_rcw_src(QIXIS_RCW_SRC_NAND); + QIXIS_WRITE(rcfg_ctl, 0x20); + QIXIS_WRITE(rcfg_ctl, 0x21); +#else + printf("Not implemented\n"); +#endif } else if (strcmp(argv[1], "watchdog") == 0) { static char *period[9] = {"2s", "4s", "8s", "16s", "32s", "1min", "2min", "4min", "8min"}; @@ -244,6 +254,7 @@ U_BOOT_CMD( "Reset the board using the FPGA sequencer", "- hard reset to default bank\n" "qixis_reset altbank - reset to alternate bank\n" + "qixis_reset nand - reset to nand\n" "qixis watchdog <watchdog_period> - set the watchdog period\n" " period: 1s 2s 4s 8s 16s 32s 1min 2min 4min 8min\n" "qixis_reset dump - display the QIXIS registers\n" |
