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TI ARMv7: Don't use GD before crt0.S has set it

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Prior to this change we set the gd pointer early so that we can store
data in it.  This becomes problematic for DM changes as well as being
odd in general.  Re-work the code paths so that we don't need to set the
gd pointer so early and instead can rely upon the normal setting of it.

In order to do this we do need to move certain calls from s_init into
spl_board_init(), mainly preloader_console_init and
save_omap_boot_params.

Tested on: Beaglebone Black, AM43xx GP EVM, Beagleboard, Beagleboard xM,
OMAP5 uEVM, DRA7xx EVM
Signed-off-by: Tom Rini <trini@ti.com>
Tested-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Tom Rini 2014-12-19 16:53:24 -05:00
parent ab77f24119
commit a6b541b090
4 changed files with 11 additions and 30 deletions
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11
arch/arm/cpu/armv7/am33xx/board.c
View file

@ -284,14 +284,6 @@ void s_init(void)
*/
#ifdef CONFIG_NOR_BOOT
enable_norboot_pin_mux();
#endif
/*
* Save the boot parameters passed from romcode.
* We cannot delay the saving further than this,
* to prevent overwrites.
*/
#ifdef CONFIG_SPL_BUILD
save_omap_boot_params();
#endif
watchdog_disable();
set_uart_mux_conf();
@ -301,9 +293,6 @@ void s_init(void)
gd->baudrate = CONFIG_BAUDRATE;
serial_init();
gd->have_console = 1;
#elif defined(CONFIG_SPL_BUILD)
gd = &gdata;
preloader_console_init();
#endif
#if defined(CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC)
/* Enable RTC32K clock */

10
arch/arm/cpu/armv7/omap-common/boot-common.c
View file

@ -106,6 +106,16 @@ u32 spl_boot_mode(void)
void spl_board_init(void)
{
/*
* Save the boot parameters passed from romcode.
* We cannot delay the saving further than this,
* to prevent overwrites.
*/
save_omap_boot_params();
/* Prepare console output */
preloader_console_init();
#ifdef CONFIG_SPL_NAND_SUPPORT
gpmc_init();
#endif

11
arch/arm/cpu/armv7/omap-common/hwinit-common.c
View file

@ -111,14 +111,6 @@ int arch_cpu_init(void)
*/
void s_init(void)
{
/*
* Save the boot parameters passed from romcode.
* We cannot delay the saving further than this,
* to prevent overwrites.
*/
#ifdef CONFIG_SPL_BUILD
save_omap_boot_params();
#endif
init_omap_revision();
hw_data_init();
@ -133,9 +125,6 @@ void s_init(void)
srcomp_enable();
setup_clocks_for_console();
gd = &gdata;
preloader_console_init();
do_io_settings();
#endif
prcm_init();

9
arch/arm/cpu/armv7/omap3/board.c
View file

@ -119,6 +119,7 @@ int board_mmc_init(bd_t *bis)
void spl_board_init(void)
{
preloader_console_init();
#if defined(CONFIG_SPL_NAND_SUPPORT) || defined(CONFIG_SPL_ONENAND_SUPPORT)
gpmc_init();
#endif
@ -264,14 +265,6 @@ void s_init(void)
ehci_clocks_enable();
#endif
#ifdef CONFIG_SPL_BUILD
gd = &gdata;
preloader_console_init();
timer_init();
#endif
if (!in_sdram)
mem_init();
}