From ef509b9063fb702ce69d1a64ff293698a04075d6 Mon Sep 17 00:00:00 2001 From: Vitaly Andrianov Date: Fri, 4 Apr 2014 13:16:53 -0400 Subject: k2hk: add support for k2hk SOC and EVM k2hk EVM is based on Texas Instruments Keystone2 Hawking/Kepler SoC. Keystone2 SoC has ARM v7 Cortex-A15 MPCore processor. Please refer the ti/k2hk_evm/README for details on the board, build and other information. This patch add support for keystone architecture and k2hk evm. Signed-off-by: Vitaly Andrianov Signed-off-by: Murali Karicheri Signed-off-by: WingMan Kwok Signed-off-by: Sandeep Nair --- board/ti/k2hk_evm/board.c | 236 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 236 insertions(+) create mode 100644 board/ti/k2hk_evm/board.c (limited to 'board/ti/k2hk_evm/board.c') diff --git a/board/ti/k2hk_evm/board.c b/board/ti/k2hk_evm/board.c new file mode 100644 index 0000000..aef67f4 --- /dev/null +++ b/board/ti/k2hk_evm/board.c @@ -0,0 +1,236 @@ +/* + * K2HK EVM : Board initialization + * + * (C) Copyright 2012-2014 + * Texas Instruments Incorporated, + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +u32 device_big_endian; + +unsigned int external_clk[ext_clk_count] = { + [sys_clk] = 122880000, + [alt_core_clk] = 125000000, + [pa_clk] = 122880000, + [tetris_clk] = 125000000, + [ddr3a_clk] = 100000000, + [ddr3b_clk] = 100000000, + [mcm_clk] = 312500000, + [pcie_clk] = 100000000, + [sgmii_srio_clk] = 156250000, + [xgmii_clk] = 156250000, + [usb_clk] = 100000000, + [rp1_clk] = 123456789 /* TODO: cannot find + what is that */ +}; + +static struct async_emif_config async_emif_config[ASYNC_EMIF_NUM_CS] = { + { /* CS0 */ + .mode = ASYNC_EMIF_MODE_NAND, + .wr_setup = 0xf, + .wr_strobe = 0x3f, + .wr_hold = 7, + .rd_setup = 0xf, + .rd_strobe = 0x3f, + .rd_hold = 7, + .turn_around = 3, + .width = ASYNC_EMIF_8, + }, + +}; + +static struct pll_init_data pll_config[] = { + CORE_PLL_1228, + PASS_PLL_983, + TETRIS_PLL_1200, +}; + +int dram_init(void) +{ + init_ddr3(); + + gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, + CONFIG_MAX_RAM_BANK_SIZE); + init_async_emif(ARRAY_SIZE(async_emif_config), async_emif_config); + return 0; +} + +/* Byte swap the 32-bit data if the device is BE */ +int cpu_to_bus(u32 *ptr, u32 length) +{ + u32 i; + + if (device_big_endian) + for (i = 0; i < length; i++, ptr++) + *ptr = __swab32(*ptr); + + return 0; +} + +#if defined(CONFIG_BOARD_EARLY_INIT_F) +int board_early_init_f(void) +{ + init_plls(ARRAY_SIZE(pll_config), pll_config); + return 0; +} +#endif + +int board_init(void) +{ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + + return 0; +} + +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) +#define K2_DDR3_START_ADDR 0x80000000 +void ft_board_setup(void *blob, bd_t *bd) +{ + u64 start[2]; + u64 size[2]; + char name[32], *env, *endp; + int lpae, nodeoffset; + u32 ddr3a_size; + int nbanks; + + env = getenv("mem_lpae"); + lpae = env && simple_strtol(env, NULL, 0); + + ddr3a_size = 0; + if (lpae) { + env = getenv("ddr3a_size"); + if (env) + ddr3a_size = simple_strtol(env, NULL, 10); + if ((ddr3a_size != 8) && (ddr3a_size != 4)) + ddr3a_size = 0; + } + + nbanks = 1; + start[0] = bd->bi_dram[0].start; + size[0] = bd->bi_dram[0].size; + + /* adjust memory start address for LPAE */ + if (lpae) { + start[0] -= K2_DDR3_START_ADDR; + start[0] += CONFIG_SYS_LPAE_SDRAM_BASE; + } + + if ((size[0] == 0x80000000) && (ddr3a_size != 0)) { + size[1] = ((u64)ddr3a_size - 2) << 30; + start[1] = 0x880000000; + nbanks++; + } + + /* reserve memory at start of bank */ + sprintf(name, "mem_reserve_head"); + env = getenv(name); + if (env) { + start[0] += ustrtoul(env, &endp, 0); + size[0] -= ustrtoul(env, &endp, 0); + } + + sprintf(name, "mem_reserve"); + env = getenv(name); + if (env) + size[0] -= ustrtoul(env, &endp, 0); + + fdt_fixup_memory_banks(blob, start, size, nbanks); + + /* Fix up the initrd */ + if (lpae) { + u64 initrd_start, initrd_end; + u32 *prop1, *prop2; + int err; + nodeoffset = fdt_path_offset(blob, "/chosen"); + if (nodeoffset >= 0) { + prop1 = (u32 *)fdt_getprop(blob, nodeoffset, + "linux,initrd-start", NULL); + prop2 = (u32 *)fdt_getprop(blob, nodeoffset, + "linux,initrd-end", NULL); + if (prop1 && prop2) { + initrd_start = __be32_to_cpu(*prop1); + initrd_start -= K2_DDR3_START_ADDR; + initrd_start += CONFIG_SYS_LPAE_SDRAM_BASE; + initrd_start = __cpu_to_be64(initrd_start); + initrd_end = __be32_to_cpu(*prop2); + initrd_end -= K2_DDR3_START_ADDR; + initrd_end += CONFIG_SYS_LPAE_SDRAM_BASE; + initrd_end = __cpu_to_be64(initrd_end); + + err = fdt_delprop(blob, nodeoffset, + "linux,initrd-start"); + if (err < 0) + puts("error deleting initrd-start\n"); + + err = fdt_delprop(blob, nodeoffset, + "linux,initrd-end"); + if (err < 0) + puts("error deleting initrd-end\n"); + + err = fdt_setprop(blob, nodeoffset, + "linux,initrd-start", + &initrd_start, + sizeof(initrd_start)); + if (err < 0) + puts("error adding initrd-start\n"); + + err = fdt_setprop(blob, nodeoffset, + "linux,initrd-end", + &initrd_end, + sizeof(initrd_end)); + if (err < 0) + puts("error adding linux,initrd-end\n"); + } + } + } +} + +void ft_board_setup_ex(void *blob, bd_t *bd) +{ + int lpae; + char *env; + u64 *reserve_start, size; + + env = getenv("mem_lpae"); + lpae = env && simple_strtol(env, NULL, 0); + + if (lpae) { + /* + * the initrd and other reserved memory areas are + * embedded in in the DTB itslef. fix up these addresses + * to 36 bit format + */ + reserve_start = (u64 *)((char *)blob + + fdt_off_mem_rsvmap(blob)); + while (1) { + *reserve_start = __cpu_to_be64(*reserve_start); + size = __cpu_to_be64(*(reserve_start + 1)); + if (size) { + *reserve_start -= K2_DDR3_START_ADDR; + *reserve_start += + CONFIG_SYS_LPAE_SDRAM_BASE; + *reserve_start = + __cpu_to_be64(*reserve_start); + } else { + break; + } + reserve_start += 2; + } + } +} +#endif -- cgit v1.1