-----Original Message----- From: Dylan Hung dylan_hung@aspeedtech.com Sent: Monday, September 7, 2020 4:25 PM To: Ryan Chen ryan_chen@aspeedtech.com; u-boot@lists.denx.de Cc: BMC-SW BMC-SW@aspeedtech.com Subject: [PATCH 2/2] ram: add ddr4 dual x8 configuration
the aspeed ddr sdram controller needs to know if the memory chip mounted on the board is dual x8 die or not. Or it may get the wrong size of the memory space.
Signed-off-by: Dylan Hung dylan_hung@aspeedtech.com
Reviewed-by: Ryan Chen ryan_chen@aspeedtech.com
drivers/ram/Kconfig | 1 + drivers/ram/aspeed/Kconfig | 10 ++++++++++ drivers/ram/aspeed/sdram_ast2500.c | 2 +- 3 files changed, 12 insertions(+), 1 deletion(-) create mode 100644 drivers/ram/aspeed/Kconfig
diff --git a/drivers/ram/Kconfig b/drivers/ram/Kconfig index 7e6e981897..d277237288 100644 --- a/drivers/ram/Kconfig +++ b/drivers/ram/Kconfig @@ -76,3 +76,4 @@ config IMXRT_SDRAM source "drivers/ram/rockchip/Kconfig" source "drivers/ram/sifive/Kconfig" source "drivers/ram/stm32mp1/Kconfig" +source "drivers/ram/aspeed/Kconfig" diff --git a/drivers/ram/aspeed/Kconfig b/drivers/ram/aspeed/Kconfig new file mode 100644 index 0000000000..020c913188 --- /dev/null +++ b/drivers/ram/aspeed/Kconfig @@ -0,0 +1,10 @@ +if RAM || SPL_RAM +config ASPEED_DDR4_DUALX8
- bool "Enable Dual X8 DDR4 die"
- depends on DM && OF_CONTROL && ARCH_ASPEED
- default n
- help
Say Y if dual X8 DDR4 die is used on the board. The aspeed ddrsdram
controller needs to know if the memory chip mounted on the boardis dual
x8 die or not. Or it may get the wrong size of the memory space.+endif diff --git a/drivers/ram/aspeed/sdram_ast2500.c b/drivers/ram/aspeed/sdram_ast2500.c index a3adaa8a99..8bfbf562c3 100644 --- a/drivers/ram/aspeed/sdram_ast2500.c +++ b/drivers/ram/aspeed/sdram_ast2500.c @@ -247,7 +247,7 @@ static int ast2500_sdrammc_init_ddr4(struct dram_info *info) | SDRAM_PCR_RESETN_DIS | SDRAM_PCR_RGAP_CTRL_EN | SDRAM_PCR_ODT_EN | SDRAM_PCR_ODT_EXT_EN; const u32 conf = (SDRAM_CONF_CAP_1024M << SDRAM_CONF_CAP_SHIFT) -#ifdef CONFIG_DUALX8_RAM +#ifdef CONFIG_ASPEED_DDR4_DUALX8 | SDRAM_CONF_DUALX8 #endif | SDRAM_CONF_SCRAMBLE | SDRAM_CONF_SCRAMBLE_PAT2 | SDRAM_CONF_DDR4; -- 2.17.1