diff options
Diffstat (limited to 'board/ti/am335x/board.c')
| -rw-r--r-- | board/ti/am335x/board.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c index b12341d..728afc2 100644 --- a/board/ti/am335x/board.c +++ b/board/ti/am335x/board.c @@ -83,7 +83,7 @@ static int read_eeprom(struct am335x_baseboard_id *header) return 0; } -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) static const struct ddr_data ddr2_data = { .datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) | (MT47H128M16RT25E_RD_DQS<<20) | @@ -249,10 +249,28 @@ int spl_start_uboot(void) */ void s_init(void) { -#ifdef CONFIG_SPL_BUILD - struct am335x_baseboard_id header; + __maybe_unused struct am335x_baseboard_id header; /* + * The ROM will only have set up sufficient pinmux to allow for the + * first 4KiB NOR to be read, we must finish doing what we know of + * the NOR mux in this space in order to continue. + */ +#ifdef CONFIG_NOR_BOOT + asm("stmfd sp!, {r2 - r4}"); + asm("movw r4, #0x8A4"); + asm("movw r3, #0x44E1"); + asm("orr r4, r4, r3, lsl #16"); + asm("mov r2, #9"); + asm("mov r3, #8"); + asm("gpmc_mux: str r2, [r4], #4"); + asm("subs r3, r3, #1"); + asm("bne gpmc_mux"); + asm("ldmfd sp!, {r2 - r4}"); +#endif + +#ifdef CONFIG_SPL_BUILD + /* * Save the boot parameters passed from romcode. * We cannot delay the saving further than this, * to prevent overwrites. @@ -270,7 +288,7 @@ void s_init(void) while (readl(&wdtimer->wdtwwps) != 0x0) ; -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) /* Setup the PLLs and the clocks for the peripherals */ pll_init(); @@ -298,9 +316,16 @@ void s_init(void) uart_soft_reset(); +#if defined(CONFIG_NOR_BOOT) + /* We want our console now. */ + gd->baudrate = CONFIG_BAUDRATE; + serial_init(); + gd->have_console = 1; +#else gd = &gdata; preloader_console_init(); +#endif /* Initalize the board header */ enable_i2c0_pin_mux(); |