From f4ef66685a6cdca6e5b3a8b2f199789f5d94320a Mon Sep 17 00:00:00 2001
From: Tom Warren <twarren.nvidia@gmail.com>
Date: Thu, 14 Apr 2011 12:09:41 +0000
Subject: arm: Tegra2: Move clk/mux init to board_early_init_f, add GPIO init

Signed-off-by: Tom Warren <twarren@nvidia.com>
---
 board/nvidia/common/board.c | 32 +++++++++++++++++++++-----------
 board/nvidia/common/board.h |  4 ++++
 2 files changed, 25 insertions(+), 11 deletions(-)

(limited to 'board/nvidia/common')

diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c
index 5edd70fa7c..3d6c248479 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 */
@@ -181,6 +188,15 @@ void pinmux_init(void)
 	pin_mux_uart();
 }
 
+/*
+ * 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;
 }
diff --git a/board/nvidia/common/board.h b/board/nvidia/common/board.h
index 47c7885e5a..350bc5750e 100644
--- a/board/nvidia/common/board.h
+++ b/board/nvidia/common/board.h
@@ -25,5 +25,9 @@
 #define _BOARD_H_
 
 void tegra2_start(void);
+void clock_init(void);
+void pinmux_init(void);
+void gpio_init(void);
+void gpio_config_uart(void);
 
 #endif	/* BOARD_H */
-- 
cgit