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ARM: uniphier: introduce flags to adjust DRAM timing for LD20/LD21

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Unfortunately, this SoC needs per-board adjustment between clock
and address/command lines.  This flag will be passed to the DRAM
init function and used for compensating the difference of DRAM
timing parameters.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2016-09-14 01:06:10 +09:00
parent ef70eb54aa
commit f6bbec3d5c
2 changed files with 32 additions and 4 deletions
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25
arch/arm/mach-uniphier/boards.c
View file

@ -184,6 +184,27 @@ static const struct uniphier_board_data uniphier_ld11_data = {
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD20)
static const struct uniphier_board_data uniphier_ld20_ref_data = {
.dram_freq = 1866,
.dram_nr_ch = 3,
.dram_ch[0] = {
.base = 0x80000000,
.size = 0x40000000,
.width = 32,
},
.dram_ch[1] = {
.base = 0xc0000000,
.size = 0x40000000,
.width = 32,
},
.dram_ch[2] = {
.base = 0x100000000UL,
.size = 0x40000000,
.width = 32,
},
.flags = UNIPHIER_BD_BOARD_LD20_REF,
};
static const struct uniphier_board_data uniphier_ld20_data = {
.dram_freq = 1866,
.dram_nr_ch = 3,
@ -202,6 +223,7 @@ static const struct uniphier_board_data uniphier_ld20_data = {
.size = 0x40000000,
.width = 32,
},
.flags = UNIPHIER_BD_BOARD_LD20_GLOBAL,
};
static const struct uniphier_board_data uniphier_ld21_data = {
@ -217,7 +239,7 @@ static const struct uniphier_board_data uniphier_ld21_data = {
.size = 0x40000000,
.width = 32,
},
.flags = UNIPHIER_BD_PACKAGE_LD21,
.flags = UNIPHIER_BD_BOARD_LD21_GLOBAL,
};
#endif
@ -255,6 +277,7 @@ static const struct uniphier_board_id uniphier_boards[] = {
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD20)
{ "socionext,ph1-ld21", &uniphier_ld21_data, },
{ "socionext,ph1-ld20-ref", &uniphier_ld20_ref_data, },
{ "socionext,ph1-ld20", &uniphier_ld20_data, },
#endif
};

11
arch/arm/mach-uniphier/init.h
View file

@ -23,9 +23,14 @@ struct uniphier_board_data {
unsigned int dram_nr_ch;
struct uniphier_dram_ch dram_ch[UNIPHIER_MAX_NR_DRAM_CH];
unsigned int flags;
#define UNIPHIER_BD_DDR3PLUS BIT(2)
#define UNIPHIER_BD_PACKAGE_LD21 1
#define UNIPHIER_BD_PACKAGE_TYPE(f) ((f) & 0x3)
#define UNIPHIER_BD_DDR3PLUS BIT(2)
#define UNIPHIER_BD_BOARD_GET_TYPE(f) ((f) & 0x3)
#define UNIPHIER_BD_BOARD_LD20_REF 0 /* LD20 reference */
#define UNIPHIER_BD_BOARD_LD20_GLOBAL 1 /* LD20 TV Set */
#define UNIPHIER_BD_BOARD_LD21_REF 2 /* LD21 reference */
#define UNIPHIER_BD_BOARD_LD21_GLOBAL 3 /* LD21 TV Set */
};
const struct uniphier_board_data *uniphier_get_board_param(void);