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authorTom Rini <trini@ti.com>2014-12-19 16:53:24 -0500
committerTom Rini <trini@ti.com>2015-01-16 14:52:52 -0500
commita6b541b09022acb6f7c2754100ae26bd44eed1d9 (patch)
treecd3f71bd852e2bd29241528d4c68960ea30b21af /arch/arm/cpu
parentab77f24119e80257de4ab017b877f92f96980562 (diff)
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TI ARMv7: Don't use GD before crt0.S has set it
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>
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r--arch/arm/cpu/armv7/am33xx/board.c11
-rw-r--r--arch/arm/cpu/armv7/omap-common/boot-common.c10
-rw-r--r--arch/arm/cpu/armv7/omap-common/hwinit-common.c11
-rw-r--r--arch/arm/cpu/armv7/omap3/board.c9
4 files changed, 11 insertions, 30 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c
index eaf09d1..81477aa 100644
--- a/arch/arm/cpu/armv7/am33xx/board.c
+++ b/arch/arm/cpu/armv7/am33xx/board.c
@@ -285,14 +285,6 @@ 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();
setup_clocks_for_console();
@@ -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 */
diff --git a/arch/arm/cpu/armv7/omap-common/boot-common.c b/arch/arm/cpu/armv7/omap-common/boot-common.c
index 00a1082..17500f2 100644
--- a/arch/arm/cpu/armv7/omap-common/boot-common.c
+++ b/arch/arm/cpu/armv7/omap-common/boot-common.c
@@ -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
diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
index dd52e93..cb35c19 100644
--- a/arch/arm/cpu/armv7/omap-common/hwinit-common.c
+++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
@@ -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();
diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c
index 53a9e5d..90d6ae7 100644
--- a/arch/arm/cpu/armv7/omap3/board.c
+++ b/arch/arm/cpu/armv7/omap3/board.c
@@ -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();
}