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Diffstat (limited to 'arch/arm/cpu/armv7/am33xx/board.c')
-rw-r--r--arch/arm/cpu/armv7/am33xx/board.c51
1 files changed, 47 insertions, 4 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c
index 312643c777..d64ae6936c 100644
--- a/arch/arm/cpu/armv7/am33xx/board.c
+++ b/arch/arm/cpu/armv7/am33xx/board.c
@@ -19,19 +19,31 @@
#include <common.h>
#include <asm/arch/cpu.h>
#include <asm/arch/hardware.h>
+#include <asm/arch/omap.h>
#include <asm/arch/ddr_defs.h>
#include <asm/arch/clock.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/common_def.h>
#include <asm/io.h>
+#include <asm/omap_common.h>
DECLARE_GLOBAL_DATA_PTR;
struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
struct gptimer *timer_base = (struct gptimer *)CONFIG_SYS_TIMERBASE;
+struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
+
+/* UART Defines */
+#ifdef CONFIG_SPL_BUILD
+#define UART_RESET (0x1 << 1)
+#define UART_CLK_RUNNING_MASK 0x1
+#define UART_SMART_IDLE_EN (0x1 << 0x3)
+#endif
/*
* early system init of muxing and clocks.
*/
-void s_init(u32 in_ddr)
+void s_init(void)
{
/* WDT1 is already running when the bootloader gets control
* Disable it to avoid "random" resets
@@ -43,12 +55,37 @@ void s_init(u32 in_ddr)
while (readl(&wdtimer->wdtwwps) != 0x0)
;
+#ifdef CONFIG_SPL_BUILD
/* Setup the PLLs and the clocks for the peripherals */
-#ifdef CONFIG_SETUP_PLL
pll_init();
+
+ /* UART softreset */
+ u32 regVal;
+
+ enable_uart0_pin_mux();
+
+ regVal = readl(&uart_base->uartsyscfg);
+ regVal |= UART_RESET;
+ writel(regVal, &uart_base->uartsyscfg);
+ while ((readl(&uart_base->uartsyssts) &
+ UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
+ ;
+
+ /* Disable smart idle */
+ regVal = readl(&uart_base->uartsyscfg);
+ regVal |= UART_SMART_IDLE_EN;
+ writel(regVal, &uart_base->uartsyscfg);
+
+ /* Initialize the Timer */
+ init_timer();
+
+ preloader_console_init();
+
+ config_ddr();
#endif
- if (!in_ddr)
- config_ddr();
+
+ /* Enable MMC0 */
+ enable_mmc0_pin_mux();
}
/* Initialize timer */
@@ -71,3 +108,9 @@ int board_mmc_init(bd_t *bis)
return omap_mmc_init(0);
}
#endif
+
+void setup_clocks_for_console(void)
+{
+ /* Not yet implemented */
+ return;
+}