OMAP2/3 board-*.c files: read bootloader configuration earlier

Most board-*.c files read configuration data from the bootloader in
their .init_machine() function.  This needs to happen earlier, at some
point before omap2_init_common_hw() is called.  This is because a
future patch will use the bootloader serial console port information
to enable the UART clocks earlier, immediately after omap2_clk_init().
This is in turn necessary since otherwise clock tree usecounts on
clocks like dpll4_m2x2_ck will be bogus, which can cause the
currently-active console UART clock to be disabled during boot.

Signed-off-by: Paul Walmsley <paul@pwsan.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index dd3c735b5588..ca28424f2fbd 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -552,7 +552,7 @@ static struct omap_uart_state omap_uart[OMAP_MAX_NR_PORTS] = {
 	},
 };
 
-void __init omap_serial_init(void)
+void __init omap_serial_early_init(void)
 {
 	int i;
 	char name[16];
@@ -595,6 +595,18 @@ void __init omap_serial_init(void)
 			p->irq += 32;
 
 		omap_uart_enable_clocks(uart);
+	}
+}
+
+void __init omap_serial_init(void)
+{
+	int i;
+
+	for (i = 0; i < OMAP_MAX_NR_PORTS; i++) {
+		struct omap_uart_state *uart = &omap_uart[i];
+		struct platform_device *pdev = &uart->pdev;
+		struct device *dev = &pdev->dev;
+
 		omap_uart_reset(uart);
 		omap_uart_idle_init(uart);