plat: marvell: Add board support for A8K platform
Add support for A8K platform boards
Change-Id: Ife025d930d2ab6cabbc13bbe19b2273cc1c938c8
Signed-off-by: Hanna Hawa <hannah@marvell.com>
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
diff --git a/plat/marvell/a8k/a80x0/board/dram_port.c b/plat/marvell/a8k/a80x0/board/dram_port.c
new file mode 100644
index 0000000..c720c11
--- /dev/null
+++ b/plat/marvell/a8k/a80x0/board/dram_port.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <arch_helpers.h>
+#include <a8k_i2c.h>
+#include <debug.h>
+#include <mmio.h>
+#include <mv_ddr_if.h>
+#include <mvebu_def.h>
+#include <plat_marvell.h>
+
+#define MVEBU_AP_MPP_CTRL0_7_REG MVEBU_AP_MPP_REGS(0)
+#define MVEBU_AP_MPP_CTRL4_OFFS 16
+#define MVEBU_AP_MPP_CTRL5_OFFS 20
+#define MVEBU_AP_MPP_CTRL4_I2C0_SDA_ENA 0x3
+#define MVEBU_AP_MPP_CTRL5_I2C0_SCK_ENA 0x3
+
+#define MVEBU_CP_MPP_CTRL37_OFFS 20
+#define MVEBU_CP_MPP_CTRL38_OFFS 24
+#define MVEBU_CP_MPP_CTRL37_I2C0_SCK_ENA 0x2
+#define MVEBU_CP_MPP_CTRL38_I2C0_SDA_ENA 0x2
+
+#define MVEBU_MPP_CTRL_MASK 0xf
+
+/*
+ * This struct provides the DRAM training code with
+ * the appropriate board DRAM configuration
+ */
+static struct mv_ddr_topology_map board_topology_map = {
+ /* MISL board with 1CS 8Gb x4 devices of Micron 2400T */
+ DEBUG_LEVEL_ERROR,
+ 0x1, /* active interfaces */
+ /* cs_mask, mirror, dqs_swap, ck_swap X subphys */
+ { { { {0x1, 0x0, 0, 0}, /* FIXME: change the cs mask for all 64 bit */
+ {0x1, 0x0, 0, 0},
+ {0x1, 0x0, 0, 0},
+ {0x1, 0x0, 0, 0},
+ {0x1, 0x0, 0, 0},
+ {0x1, 0x0, 0, 0},
+ {0x1, 0x0, 0, 0},
+ {0x1, 0x0, 0, 0},
+ {0x1, 0x0, 0, 0} },
+ /* TODO: double check if the speed bin is 2400T */
+ SPEED_BIN_DDR_2400T, /* speed_bin */
+ MV_DDR_DEV_WIDTH_8BIT, /* sdram device width */
+ MV_DDR_DIE_CAP_8GBIT, /* die capacity */
+ MV_DDR_FREQ_SAR, /* frequency */
+ 0, 0, /* cas_l, cas_wl */
+ MV_DDR_TEMP_LOW} }, /* temperature */
+ MV_DDR_64BIT_ECC_PUP8_BUS_MASK, /* subphys mask */
+ MV_DDR_CFG_SPD, /* ddr configuration data source */
+ { {0} }, /* raw spd data */
+ {0}, /* timing parameters */
+ { /* electrical configuration */
+ { /* memory electrical configuration */
+ MV_DDR_RTT_NOM_PARK_RZQ_DISABLE, /* rtt_nom */
+ {
+ MV_DDR_RTT_NOM_PARK_RZQ_DIV4, /* rtt_park 1cs */
+ MV_DDR_RTT_NOM_PARK_RZQ_DIV1 /* rtt_park 2cs */
+ },
+ {
+ MV_DDR_RTT_WR_DYN_ODT_OFF, /* rtt_wr 1cs */
+ MV_DDR_RTT_WR_RZQ_DIV2 /* rtt_wr 2cs */
+ },
+ MV_DDR_DIC_RZQ_DIV7 /* dic */
+ },
+ { /* phy electrical configuration */
+ MV_DDR_OHM_30, /* data_drv_p */
+ MV_DDR_OHM_30, /* data_drv_n */
+ MV_DDR_OHM_30, /* ctrl_drv_p */
+ MV_DDR_OHM_30, /* ctrl_drv_n */
+ {
+ MV_DDR_OHM_60, /* odt_p 1cs */
+ MV_DDR_OHM_120 /* odt_p 2cs */
+ },
+ {
+ MV_DDR_OHM_60, /* odt_n 1cs */
+ MV_DDR_OHM_120 /* odt_n 2cs */
+ },
+ },
+ { /* mac electrical configuration */
+ MV_DDR_ODT_CFG_NORMAL, /* odtcfg_pattern */
+ MV_DDR_ODT_CFG_ALWAYS_ON, /* odtcfg_write */
+ MV_DDR_ODT_CFG_NORMAL, /* odtcfg_read */
+ },
+ }
+};
+
+struct mv_ddr_topology_map *mv_ddr_topology_map_get(void)
+{
+ /* Return the board topology as defined in the board code */
+ return &board_topology_map;
+}
+
+static void mpp_config(void)
+{
+ uintptr_t reg;
+ uint32_t val;
+
+ reg = MVEBU_CP_MPP_REGS(0, 4);
+ /* configure CP0 MPP 37 and 38 to i2c */
+ val = mmio_read_32(reg);
+ val &= ~((MVEBU_MPP_CTRL_MASK << MVEBU_CP_MPP_CTRL37_OFFS) |
+ (MVEBU_MPP_CTRL_MASK << MVEBU_CP_MPP_CTRL38_OFFS));
+ val |= (MVEBU_CP_MPP_CTRL37_I2C0_SCK_ENA <<
+ MVEBU_CP_MPP_CTRL37_OFFS) |
+ (MVEBU_CP_MPP_CTRL38_I2C0_SDA_ENA <<
+ MVEBU_CP_MPP_CTRL38_OFFS);
+ mmio_write_32(reg, val);
+}
+
+/*
+ * This function may modify the default DRAM parameters
+ * based on information received from SPD or bootloader
+ * configuration located on non volatile storage
+ */
+void plat_marvell_dram_update_topology(void)
+{
+ struct mv_ddr_topology_map *tm = mv_ddr_topology_map_get();
+
+ INFO("Gathering DRAM information\n");
+
+ if (tm->cfg_src == MV_DDR_CFG_SPD) {
+ /* configure MPPs to enable i2c */
+ mpp_config();
+
+ /* initialize i2c */
+ i2c_init((void *)MVEBU_CP0_I2C_BASE);
+
+ /* select SPD memory page 0 to access DRAM configuration */
+ i2c_write(I2C_SPD_P0_ADDR, 0x0, 1, tm->spd_data.all_bytes, 1);
+
+ /* read data from spd */
+ i2c_read(I2C_SPD_ADDR, 0x0, 1, tm->spd_data.all_bytes,
+ sizeof(tm->spd_data.all_bytes));
+ }
+}