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authorDarwin Rambo <drambo@broadcom.com>2014-02-11 11:06:38 -0800
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2014-02-22 19:30:45 +0100
commit9ed679aeeb9899123bf92ed1eafb7cf6965473dc (patch)
treefb07e3cc334b069f2cca243bd6432bd7e83233b8 /board/broadcom/bcm28155_ap/bcm28155_ap.c
parent7a9d0ad009dfde35d1c377c1c1203ccf2478c773 (diff)
downloadblackbird-obmc-uboot-9ed679aeeb9899123bf92ed1eafb7cf6965473dc.tar.gz
blackbird-obmc-uboot-9ed679aeeb9899123bf92ed1eafb7cf6965473dc.zip
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>
Diffstat (limited to 'board/broadcom/bcm28155_ap/bcm28155_ap.c')
-rw-r--r--board/broadcom/bcm28155_ap/bcm28155_ap.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/board/broadcom/bcm28155_ap/bcm28155_ap.c b/board/broadcom/bcm28155_ap/bcm28155_ap.c
new file mode 100644
index 0000000000..940a1c2c50
--- /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
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