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authorTom Warren <twarren.nvidia@gmail.com>2011-04-14 12:09:41 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2011-04-27 19:38:10 +0200
commitf4ef66685a6cdca6e5b3a8b2f199789f5d94320a (patch)
tree7c6dd75abff416079ac657f20079081e380a2d3c /board/nvidia/common/board.c
parentc5e93131fadfc69f733929873c1f80a822778a13 (diff)
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arm: Tegra2: Move clk/mux init to board_early_init_f, add GPIO init
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'board/nvidia/common/board.c')
-rw-r--r--board/nvidia/common/board.c32
1 files changed, 21 insertions, 11 deletions
diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c
index 5edd70f..3d6c248 100644
--- a/board/nvidia/common/board.c
+++ b/board/nvidia/common/board.c
@@ -41,7 +41,16 @@ const struct tegra2_sysinfo sysinfo = {
#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void)
{
- debug("Board Early Init\n");
+ /* Initialize periph clocks */
+ clock_init();
+
+ /* Initialize periph pinmuxes */
+ pinmux_init();
+
+ /* Initialize periph GPIOs */
+ gpio_init();
+
+ /* Init UART, scratch regs, and start CPU */
tegra2_start();
return 0;
}
@@ -64,10 +73,10 @@ int timer_init(void)
static void clock_init_uart(void)
{
struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
- static int pllp_init_done;
u32 reg;
- if (!pllp_init_done) {
+ reg = readl(&clkrst->crc_pllp_base);
+ if (!(reg & PLL_BASE_OVRRIDE)) {
/* Override pllp setup for 216MHz operation. */
reg = (PLL_BYPASS | PLL_BASE_OVRRIDE | PLL_DIVP);
reg |= (((NVRM_PLLP_FIXED_FREQ_KHZ/500) << 8) | PLL_DIVM);
@@ -78,8 +87,6 @@ static void clock_init_uart(void)
reg &= ~PLL_BYPASS;
writel(reg, &clkrst->crc_pllp_base);
-
- pllp_init_done++;
}
/* Now do the UART reset/clock enable */
@@ -182,6 +189,15 @@ void pinmux_init(void)
}
/*
+ * Routine: gpio_init
+ * Description: Do individual peripheral GPIO configs
+ */
+void gpio_init(void)
+{
+ gpio_config_uart();
+}
+
+/*
* Routine: board_init
* Description: Early hardware init.
*/
@@ -192,11 +208,5 @@ int board_init(void)
/* board id for Linux */
gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
- /* Initialize peripheral clocks */
- clock_init();
-
- /* Initialize periph pinmuxes */
- pinmux_init();
-
return 0;
}