#include <common.h>
#include <asm/io.h>
#include "ap20.h"
+#include <asm/arch/clock.h>
+#include <asm/arch/funcmux.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/tegra2.h>
#include <asm/arch/pmc.h>
DECLARE_GLOBAL_DATA_PTR;
+enum {
+ /* UARTs which we can enable */
+ UARTA = 1 << 0,
+ UARTB = 1 << 1,
+ UARTD = 1 << 3,
+ UART_COUNT = 4,
+};
+
/*
* Boot ROM initializes the odmdata in APBDEV_PMC_SCRATCH20_0,
* so we are using this value to identify memory size.
case 1:
return 0x10000000; /* 256 MB */
case 2:
+ default:
return 0x20000000; /* 512 MB */
case 3:
- default:
return 0x40000000; /* 1GB */
}
}
int dram_init(void)
{
- unsigned long rs;
-
/* We do not initialise DRAM here. We just query the size */
- gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
- gd->bd->bi_dram[0].size = gd->ram_size = query_sdram_size();
-
- /* Now check it dynamically */
- rs = get_ram_size(CONFIG_SYS_SDRAM_BASE, gd->ram_size);
- if (rs) {
- printf("dynamic ram_size = %lu\n", rs);
- gd->bd->bi_dram[0].size = gd->ram_size = rs;
- }
+ gd->ram_size = query_sdram_size();
return 0;
}
{
/* Fire up the Cortex A9 */
tegra2_start();
+
+ /* We didn't do this init in start.S, so do it now */
+ cpu_init_cp15();
+
+ /* Initialize essential common plls */
+ clock_early_init();
+
return 0;
}
#endif
+
+/**
+ * Set up the specified uarts
+ *
+ * @param uarts_ids Mask containing UARTs to init (UARTx)
+ */
+static void setup_uarts(int uart_ids)
+{
+ static enum periph_id id_for_uart[] = {
+ PERIPH_ID_UART1,
+ PERIPH_ID_UART2,
+ PERIPH_ID_UART3,
+ PERIPH_ID_UART4,
+ };
+ size_t i;
+
+ for (i = 0; i < UART_COUNT; i++) {
+ if (uart_ids & (1 << i)) {
+ enum periph_id id = id_for_uart[i];
+
+ funcmux_select(id, FUNCMUX_DEFAULT);
+ clock_ll_start_uart(id);
+ }
+ }
+}
+
+void board_init_uart_f(void)
+{
+ int uart_ids = 0; /* bit mask of which UART ids to enable */
+
+#ifdef CONFIG_TEGRA2_ENABLE_UARTA
+ uart_ids |= UARTA;
+#endif
+#ifdef CONFIG_TEGRA2_ENABLE_UARTB
+ uart_ids |= UARTB;
+#endif
+#ifdef CONFIG_TEGRA2_ENABLE_UARTD
+ uart_ids |= UARTD;
+#endif
+ setup_uarts(uart_ids);
+}
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+ /* Enable D-cache. I-cache is already enabled in start.S */
+ dcache_enable();
+}
+#endif