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authorHeiko Schocher <hs@denx.de>2013-07-30 10:48:54 +0530
committerTom Rini <trini@ti.com>2013-08-15 08:51:10 -0400
commit0660481a59cccd324fc2dfcad9734318a8c25a90 (patch)
treeebebc64d145f50a26cf1cba98ba3e8ce4c3b9811 /arch/arm/cpu/armv7
parent95cb69faeb45f6396a1336bff201a50ea1677d85 (diff)
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ARM: AM33xx: Move s_init to a common place
s_init has the same outline for all the AM33xx based board. So making it generic. This also helps in addition of new Soc with minimal changes. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Rini <trini@ti.com> Tested-by: Heiko Schocher <hs@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'arch/arm/cpu/armv7')
-rw-r--r--arch/arm/cpu/armv7/am33xx/board.c62
-rw-r--r--arch/arm/cpu/armv7/am33xx/clock_ti814x.c6
2 files changed, 62 insertions, 6 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c
index 64a3af7..2ea3d69 100644
--- a/arch/arm/cpu/armv7/am33xx/board.c
+++ b/arch/arm/cpu/armv7/am33xx/board.c
@@ -137,7 +137,7 @@ int arch_misc_init(void)
}
#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
-void rtc32k_enable(void)
+static void rtc32k_enable(void)
{
struct rtc_regs *rtc = (struct rtc_regs *)RTC_BASE;
@@ -153,11 +153,7 @@ void rtc32k_enable(void)
writel((1 << 3) | (1 << 6), &rtc->osc);
}
-#define UART_RESET (0x1 << 1)
-#define UART_CLK_RUNNING_MASK 0x1
-#define UART_SMART_IDLE_EN (0x1 << 0x3)
-
-void uart_soft_reset(void)
+static void uart_soft_reset(void)
{
struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
u32 regval;
@@ -174,4 +170,58 @@ void uart_soft_reset(void)
regval |= UART_SMART_IDLE_EN;
writel(regval, &uart_base->uartsyscfg);
}
+
+static void watchdog_disable(void)
+{
+ struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
+
+ writel(0xAAAA, &wdtimer->wdtwspr);
+ while (readl(&wdtimer->wdtwwps) != 0x0)
+ ;
+ writel(0x5555, &wdtimer->wdtwspr);
+ while (readl(&wdtimer->wdtwwps) != 0x0)
+ ;
+}
#endif
+
+void s_init(void)
+{
+ /*
+ * 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
+ 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
+#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
+ watchdog_disable();
+ timer_init();
+ set_uart_mux_conf();
+ setup_clocks_for_console();
+ uart_soft_reset();
+#endif
+#ifdef CONFIG_NOR_BOOT
+ gd->baudrate = CONFIG_BAUDRATE;
+ serial_init();
+ gd->have_console = 1;
+#else
+ gd = &gdata;
+ preloader_console_init();
+#endif
+#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
+ prcm_init();
+ set_mux_conf_regs();
+ /* Enable RTC32K clock */
+ rtc32k_enable();
+ sdram_init();
+#endif
+}
diff --git a/arch/arm/cpu/armv7/am33xx/clock_ti814x.c b/arch/arm/cpu/armv7/am33xx/clock_ti814x.c
index 965e875..93c7f7b 100644
--- a/arch/arm/cpu/armv7/am33xx/clock_ti814x.c
+++ b/arch/arm/cpu/armv7/am33xx/clock_ti814x.c
@@ -277,6 +277,12 @@ static void enable_per_clocks(void)
writel(PRCM_MOD_EN, &cmalwon->ethernet1clkctrl);
while ((readl(&cmalwon->ethernet1clkctrl) & ENET_CLKCTRL_CMPL) != 0)
;
+
+ /* RTC clocks */
+ writel(PRCM_MOD_EN, &cmalwon->rtcclkstctrl);
+ writel(PRCM_MOD_EN, &cmalwon->rtcclkctrl);
+ while (readl(&cmalwon->rtcclkctrl) != PRCM_MOD_EN)
+ ;
}
/*