arm: mvebu: Add SolidRun ClearFog Armada 38x initial support
This patch adds basic support for the SolidRun ClearFog Armada 38x based
board to mainline U-Boot. Supported interfaces / devices are:
- DDR3
- UART
- MMC
- Ethernet port 0 (connected to dedicated PHY)
- I2C
The included DT source was taken from Russell King's ftp server:
http://www.home.arm.linux.org.uk/~rmk/clearfog/
With only minor modifications, like the addition of some aliases and the
"u-boot,dm-pre-reloc" property.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Rabeeh Khoury <rabeeh@solid-run.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
diff --git a/board/solidrun/clearfog/clearfog.c b/board/solidrun/clearfog/clearfog.c
new file mode 100644
index 0000000..2773f59
--- /dev/null
+++ b/board/solidrun/clearfog/clearfog.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2015 Stefan Roese <sr@denx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+
+#include "../drivers/ddr/marvell/a38x/ddr3_a38x_topology.h"
+#include <../serdes/a38x/high_speed_env_spec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define ETH_PHY_CTRL_REG 0
+#define ETH_PHY_CTRL_POWER_DOWN_BIT 11
+#define ETH_PHY_CTRL_POWER_DOWN_MASK (1 << ETH_PHY_CTRL_POWER_DOWN_BIT)
+
+/*
+ * Those values and defines are taken from the Marvell U-Boot version
+ * "u-boot-2013.01-15t1-clearfog"
+ */
+#define BOARD_GPP_OUT_ENA_LOW 0xffffffff
+#define BOARD_GPP_OUT_ENA_MID 0xffffffff
+
+#define BOARD_GPP_OUT_VAL_LOW 0x0
+#define BOARD_GPP_OUT_VAL_MID 0x0
+#define BOARD_GPP_POL_LOW 0x0
+#define BOARD_GPP_POL_MID 0x0
+
+/* IO expander on Marvell GP board includes e.g. fan enabling */
+struct marvell_io_exp {
+ u8 chip;
+ u8 addr;
+ u8 val;
+};
+
+static struct marvell_io_exp io_exp[] = {
+ { 0x20, 2, 0x40 }, /* Deassert both mini pcie reset signals */
+ { 0x20, 6, 0xf9 },
+ { 0x20, 2, 0x46 }, /* rst signals and ena USB3 current limiter */
+ { 0x20, 6, 0xb9 },
+ { 0x20, 3, 0x00 }, /* Set SFP_TX_DIS to zero */
+ { 0x20, 7, 0xbf }, /* Drive SFP_TX_DIS to zero */
+};
+
+static struct serdes_map board_serdes_map[] = {
+ {SATA0, SERDES_SPEED_3_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {SGMII1, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {PEX1, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
+ {USB3_HOST1, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {PEX2, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
+ {SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+};
+
+int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
+{
+ *serdes_map_array = board_serdes_map;
+ *count = ARRAY_SIZE(board_serdes_map);
+ return 0;
+}
+
+/*
+ * Define the DDR layout / topology here in the board file. This will
+ * be used by the DDR3 init code in the SPL U-Boot version to configure
+ * the DDR3 controller.
+ */
+static struct hws_topology_map board_topology_map = {
+ 0x1, /* active interfaces */
+ /* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
+ { { { {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0} },
+ SPEED_BIN_DDR_1600K, /* speed_bin */
+ BUS_WIDTH_16, /* memory_width */
+ MEM_4G, /* mem_size */
+ DDR_FREQ_800, /* frequency */
+ 0, 0, /* cas_l cas_wl */
+ HWS_TEMP_LOW} }, /* temperature */
+ 5, /* Num Of Bus Per Interface*/
+ BUS_MASK_32BIT /* Busses mask */
+};
+
+struct hws_topology_map *ddr3_get_topology_map(void)
+{
+ /* Return the board topology as defined in the board code */
+ return &board_topology_map;
+}
+
+int board_early_init_f(void)
+{
+ /* Configure MPP */
+ writel(0x11111111, MVEBU_MPP_BASE + 0x00);
+ writel(0x11111111, MVEBU_MPP_BASE + 0x04);
+ writel(0x10400011, MVEBU_MPP_BASE + 0x08);
+ writel(0x22043333, MVEBU_MPP_BASE + 0x0c);
+ writel(0x44400002, MVEBU_MPP_BASE + 0x10);
+ writel(0x41144004, MVEBU_MPP_BASE + 0x14);
+ writel(0x40333333, MVEBU_MPP_BASE + 0x18);
+ writel(0x00004444, MVEBU_MPP_BASE + 0x1c);
+
+ /* Set GPP Out value */
+ writel(BOARD_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
+ writel(BOARD_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
+
+ /* Set GPP Polarity */
+ writel(BOARD_GPP_POL_LOW, MVEBU_GPIO0_BASE + 0x0c);
+ writel(BOARD_GPP_POL_MID, MVEBU_GPIO1_BASE + 0x0c);
+
+ /* Set GPP Out Enable */
+ writel(BOARD_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
+ writel(BOARD_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
+
+ return 0;
+}
+
+int board_init(void)
+{
+ int i;
+
+ /* Address of boot parameters */
+ gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
+
+ /* Toggle GPIO41 to reset onboard switch and phy */
+ clrbits_le32(MVEBU_GPIO1_BASE + 0x0, BIT(9));
+ clrbits_le32(MVEBU_GPIO1_BASE + 0x4, BIT(9));
+ mdelay(1);
+ setbits_le32(MVEBU_GPIO1_BASE + 0x0, BIT(9));
+ mdelay(10);
+
+ /* Init I2C IO expanders */
+ for (i = 0; i < ARRAY_SIZE(io_exp); i++)
+ i2c_write(io_exp[i].chip, io_exp[i].addr, 1, &io_exp[i].val, 1);
+
+ return 0;
+}
+
+int checkboard(void)
+{
+ puts("Board: SolidRun ClearFog\n");
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ cpu_eth_init(bis); /* Built in controller(s) come first */
+ return pci_eth_init(bis);
+}