From: Hao Zhang hzhang@ti.com
Add ddr3 commands:
test <start_addr in hex> <end_addr in hex> - test DDR from start\n address to end address\n ddr compare <start_addr in hex> <end_addr in hex> <size in hex> -\n compare DDR data of (size) bytes from start address to end address\n ddr ecc_err <addr in hex> <bit_err in hex> - generate bit errors\n in DDR data at <addr>, the command will read a 32-bit data\n from <addr>, and write (data ^ bit_err) back to <addr>\n
Delete CONFIG_MAX_UBOOT_MEM_SIZE, as it was supposed to be used for ddr3 commands and for now it's not needed any more.
Signed-off-by: Hao Zhang hzhang@ti.com Signed-off-by: Ivan Khoronzhuk ivan.khoronzhuk@ti.com --- arch/arm/cpu/armv7/keystone/Makefile | 2 +- arch/arm/cpu/armv7/keystone/cmd_ddr3.c | 247 +++++++++++++++++++++++++++++++++ include/configs/ks2_evm.h | 4 - 3 files changed, 248 insertions(+), 5 deletions(-) create mode 100644 arch/arm/cpu/armv7/keystone/cmd_ddr3.c
diff --git a/arch/arm/cpu/armv7/keystone/Makefile b/arch/arm/cpu/armv7/keystone/Makefile index 57f6ea6..ed030db 100644 --- a/arch/arm/cpu/armv7/keystone/Makefile +++ b/arch/arm/cpu/armv7/keystone/Makefile @@ -14,5 +14,5 @@ obj-$(CONFIG_SOC_K2L) += clock-k2l.o obj-y += cmd_clock.o obj-y += cmd_mon.o obj-y += msmc.o -obj-y += ddr3.o +obj-y += ddr3.o cmd_ddr3.o obj-y += keystone.o diff --git a/arch/arm/cpu/armv7/keystone/cmd_ddr3.c b/arch/arm/cpu/armv7/keystone/cmd_ddr3.c new file mode 100644 index 0000000..e85027b --- /dev/null +++ b/arch/arm/cpu/armv7/keystone/cmd_ddr3.c @@ -0,0 +1,247 @@ +/* + * Keystone2: DDR3 test commands + * + * (C) Copyright 2012-2014 + * Texas Instruments Incorporated, <www.ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/arch/hardware.h> +#include <asm/arch/ddr3.h> +#include <common.h> +#include <command.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define DDR_MIN_ADDR CONFIG_SYS_SDRAM_BASE + +#define DDR_REMAP_ADDR 0x80000000 +#define ECC_START_ADDR1 ((DDR_MIN_ADDR - DDR_REMAP_ADDR) >> 17) + +#define ECC_END_ADDR1 (((gd->start_addr_sp - DDR_REMAP_ADDR - \ + CONFIG_STACKSIZE) >> 17) - 2) + +#define DDR_TEST_BURST_SIZE 1024 + +static int ddr_memory_test(u32 start_address, u32 end_address, int quick) +{ + u32 index_start, value, index; + + index_start = start_address; + + while (1) { + /* Write a pattern */ + for (index = index_start; + index < index_start + DDR_TEST_BURST_SIZE; + index += 4) + __raw_writel(index, index); + + /* Read and check the pattern */ + for (index = index_start; + index < index_start + DDR_TEST_BURST_SIZE; + index += 4) { + value = __raw_readl(index); + if (value != index) { + printf("ddr_memory_test: Failed at address index = 0x%x value = 0x%x *(index) = 0x%x\n", + index, value, __raw_readl(index)); + + return -1; + } + } + + index_start += DDR_TEST_BURST_SIZE; + if (index_start >= end_address) + break; + + if (quick) + continue; + + /* Write a pattern for complementary values */ + for (index = index_start; + index < index_start + DDR_TEST_BURST_SIZE; + index += 4) + __raw_writel((u32)~index, index); + + /* Read and check the pattern */ + for (index = index_start; + index < index_start + DDR_TEST_BURST_SIZE; + index += 4) { + value = __raw_readl(index); + if (value != ~index) { + printf("ddr_memory_test: Failed at address index = 0x%x value = 0x%x *(index) = 0x%x\n", + index, value, __raw_readl(index)); + + return -1; + } + } + + index_start += DDR_TEST_BURST_SIZE; + if (index_start >= end_address) + break; + + /* Write a pattern */ + for (index = index_start; + index < index_start + DDR_TEST_BURST_SIZE; + index += 2) + __raw_writew((u16)index, index); + + /* Read and check the pattern */ + for (index = index_start; + index < index_start + DDR_TEST_BURST_SIZE; + index += 2) { + value = __raw_readw(index); + if (value != (u16)index) { + printf("ddr_memory_test: Failed at address index = 0x%x value = 0x%x *(index) = 0x%x\n", + index, value, __raw_readw(index)); + + return -1; + } + } + + index_start += DDR_TEST_BURST_SIZE; + if (index_start >= end_address) + break; + + /* Write a pattern */ + for (index = index_start; + index < index_start + DDR_TEST_BURST_SIZE; + index += 1) + __raw_writeb((u8)index, index); + + /* Read and check the pattern */ + for (index = index_start; + index < index_start + DDR_TEST_BURST_SIZE; + index += 1) { + value = __raw_readb(index); + if (value != (u8)index) { + printf("ddr_memory_test: Failed at address index = 0x%x value = 0x%x *(index) = 0x%x\n", + index, value, __raw_readb(index)); + + return -1; + } + } + + index_start += DDR_TEST_BURST_SIZE; + if (index_start >= end_address) + break; + } + + puts("ddr memory test PASSED!\n"); + return 0; +} + +static int ddr_memory_compare(u32 address1, u32 address2, u32 size) +{ + u32 index, value, index2, value2; + + for (index = address1, index2 = address2; + index < address1 + size; + index += 4, index2 += 4) { + value = __raw_readl(index); + value2 = __raw_readl(index2); + + if (value != value2) { + printf("ddr_memory_test: Compare failed at address = 0x%x value = 0x%x, address2 = 0x%x value2 = 0x%x\n", + index, value, index2, value2); + + return -1; + } + } + + puts("ddr memory compare PASSED!\n"); + return 0; +} + +static int ddr_memory_ecc_err(u32 base, u32 address, u32 ecc_err) +{ + u32 value1, value2, value3; + + puts("Disabling DDR ECC ...\n"); + ddr3_disable_ecc(base); + + value1 = __raw_readl(address); + value2 = value1 ^ ecc_err; + __raw_writel(value2, address); + + value3 = __raw_readl(address); + printf("ECC err test, addr 0x%x, read data 0x%x, wrote data 0x%x, err pattern: 0x%x, read after write data 0x%x\n", + address, value1, value2, ecc_err, value3); + + __raw_writel(ECC_START_ADDR1 | (ECC_END_ADDR1 << 16), + base + KS2_DDR3_ECC_ADDR_RANGE1_OFFSET); + + puts("Enabling DDR ECC ...\n"); + ddr3_enable_ecc(base, 1); + + value1 = __raw_readl(address); + printf("ECC err test, addr 0x%x, read data 0x%x\n", address, value1); + + ddr3_check_ecc_int(base); + return 0; +} + +static int do_ddr_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + u32 start_addr, end_addr, size, ecc_err; + + if ((argc == 4) && (strncmp(argv[1], "ecc_err", 8) == 0)) { + if (!ddr3_ecc_support_rmw(KS2_DDR3A_EMIF_CTRL_BASE)) { + puts("ECC RMW isn't supported for this SOC\n"); + return 1; + } + + start_addr = simple_strtoul(argv[2], NULL, 16); + ecc_err = simple_strtoul(argv[3], NULL, 16); + + if ((start_addr < CONFIG_SYS_SDRAM_BASE) || + (start_addr > (CONFIG_SYS_SDRAM_BASE + + CONFIG_MAX_RAM_BANK_SIZE - 1))) { + puts("Invalid address!\n"); + return cmd_usage(cmdtp); + } + + ddr_memory_ecc_err(KS2_DDR3A_EMIF_CTRL_BASE, + start_addr, ecc_err); + return 0; + } + + if (!(((argc == 4) && (strncmp(argv[1], "test", 5) == 0)) || + ((argc == 5) && (strncmp(argv[1], "compare", 8) == 0)))) + return cmd_usage(cmdtp); + + start_addr = simple_strtoul(argv[2], NULL, 16); + end_addr = simple_strtoul(argv[3], NULL, 16); + + if ((start_addr < CONFIG_SYS_SDRAM_BASE) || + (start_addr > (CONFIG_SYS_SDRAM_BASE + + CONFIG_MAX_RAM_BANK_SIZE - 1)) || + (end_addr < CONFIG_SYS_SDRAM_BASE) || + (end_addr > (CONFIG_SYS_SDRAM_BASE + + CONFIG_MAX_RAM_BANK_SIZE - 1)) || (start_addr >= end_addr)) { + puts("Invalid start or end address!\n"); + return cmd_usage(cmdtp); + } + + puts("Please wait ...\n"); + if (argc == 5) { + size = simple_strtoul(argv[4], NULL, 16); + ddr_memory_compare(start_addr, end_addr, size); + } else { + ddr_memory_test(start_addr, end_addr, 0); + } + + return 0; +} + +U_BOOT_CMD(ddr, 5, 1, do_ddr_test, + "DDR3 test", + "test <start_addr in hex> <end_addr in hex> - test DDR from start\n" + " address to end address\n" + "ddr compare <start_addr in hex> <end_addr in hex> <size in hex> -\n" + " compare DDR data of (size) bytes from start address to end" + " address\n" + "ddr ecc_err <addr in hex> <bit_err in hex> - generate bit errors\n" + " in DDR data at <addr>, the command will read a 32-bit data\n" + " from <addr>, and write (data ^ bit_err) back to <addr>\n" +); diff --git a/include/configs/ks2_evm.h b/include/configs/ks2_evm.h index a92ab04..d13efe3 100644 --- a/include/configs/ks2_evm.h +++ b/include/configs/ks2_evm.h @@ -321,8 +321,4 @@ #include <asm/arch/clock.h> #define CONFIG_SYS_HZ_CLOCK clk_get_rate(KS2_CLK1_6)
-/* Maximum memory size for relocated U-boot at the end of the DDR3 memory - which is NOT applicable for DDR ECC test */ -#define CONFIG_MAX_UBOOT_MEM_SIZE (4 << 20) /* 4 MiB */ - #endif /* __CONFIG_KS2_EVM_H */