board: bcm28155_ap: Add board files

Add support for the bcm28155_ap reference board.

Signed-off-by: Darwin Rambo <drambo@broadcom.com>
Reviewed-by: Steve Rae <srae@broadcom.com>
Reviewed-by: Tim Kryger <tkryger@linaro.org>

2 files changed, 94 insertions, 0 deletions

diff --git a/board/broadcom/bcm28155_ap/Makefile b/board/broadcom/bcm28155_ap/Makefile
new file mode 100644
index 0000000..b18785a
--- /dev/null
+++ b/board/broadcom/bcm28155_ap/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright 2013 Broadcom Corporation.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= $(BOARD).o
diff --git a/board/broadcom/bcm28155_ap/bcm28155_ap.c b/board/broadcom/bcm28155_ap/bcm28155_ap.c
new file mode 100644
index 0000000..940a1c2
--- /dev/null
+++ b/board/broadcom/bcm28155_ap/bcm28155_ap.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <mmc.h>
+#include <asm/kona-common/kona_sdhci.h>
+#include <asm/kona-common/clk.h>
+#include <asm/arch/sysmap.h>
+
+#define SECWATCHDOG_SDOGCR_OFFSET	0x00000000
+#define SECWATCHDOG_SDOGCR_EN_SHIFT	27
+#define SECWATCHDOG_SDOGCR_SRSTEN_SHIFT	26
+#define SECWATCHDOG_SDOGCR_CLKS_SHIFT	20
+#define SECWATCHDOG_SDOGCR_LD_SHIFT	0
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * board_init - early hardware init
+ */
+int board_init(void)
+{
+	printf("Relocation Offset is: %08lx\n", gd->reloc_off);
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+	clk_init();
+
+	return 0;
+}
+
+/*
+ * misc_init_r - miscellaneous platform dependent initializations
+ */
+int misc_init_r(void)
+{
+	/* Disable watchdog reset - watchdog unused */
+	writel((0 << SECWATCHDOG_SDOGCR_EN_SHIFT) |
+	       (0 << SECWATCHDOG_SDOGCR_SRSTEN_SHIFT) |
+	       (4 << SECWATCHDOG_SDOGCR_CLKS_SHIFT) |
+	       (0x5a0 << SECWATCHDOG_SDOGCR_LD_SHIFT),
+	       (SECWD_BASE_ADDR + SECWATCHDOG_SDOGCR_OFFSET));
+
+	return 0;
+}
+
+/*
+ * dram_init - sets uboots idea of sdram size
+ */
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+				    CONFIG_SYS_SDRAM_SIZE);
+	return 0;
+}
+
+/* This is called after dram_init() so use get_ram_size result */
+void dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_dram[0].size = gd->ram_size;
+}
+
+#ifdef CONFIG_KONA_SDHCI
+/*
+ * mmc_init - Initializes mmc
+ */
+int board_mmc_init(bd_t *bis)
+{
+	int ret = 0;
+
+	/* Register eMMC - SDIO2 */
+	ret = kona_sdhci_init(1, 400000, 0);
+	if (ret)
+		return ret;
+
+	/* Register SD Card - SDIO4 kona_mmc_init assumes 0 based index */
+	ret = kona_sdhci_init(3, 400000, 0);
+	return ret;
+}
+#endif