From 3ba65f97cbedb39fb486f42f8daa9b9e0d36705a Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Fri, 15 Mar 2013 10:07:03 +0000 Subject: am33xx: refactor emif4/ddr to support multiple EMIF instances The AM33xx emif4/ddr support closely matches what is need to support TI814x except that TI814x has two EMIF instances. Refactor all the emif4 helper calls and the config_ddr() init function to use an additional instance number argument. Signed-off-by: Matt Porter Reviewed-by: Tom Rini --- arch/arm/include/asm/arch-am33xx/ddr_defs.h | 52 +++++++++++++++++++++++++---- 1 file changed, 46 insertions(+), 6 deletions(-) (limited to 'arch/arm/include/asm/arch-am33xx/ddr_defs.h') diff --git a/arch/arm/include/asm/arch-am33xx/ddr_defs.h b/arch/arm/include/asm/arch-am33xx/ddr_defs.h index 7ab3bafc957..55c61e6598f 100644 --- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h +++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h @@ -103,17 +103,57 @@ /** * Configure SDRAM */ -void config_sdram(const struct emif_regs *regs); +void config_sdram(const struct emif_regs *regs, int nr); /** * Set SDRAM timings */ -void set_sdram_timings(const struct emif_regs *regs); +void set_sdram_timings(const struct emif_regs *regs, int nr); /** * Configure DDR PHY */ -void config_ddr_phy(const struct emif_regs *regs); +void config_ddr_phy(const struct emif_regs *regs, int nr); + +struct ddr_cmd_regs { + unsigned int resv0[7]; + unsigned int cm0csratio; /* offset 0x01C */ + unsigned int resv1[2]; + unsigned int cm0dldiff; /* offset 0x028 */ + unsigned int cm0iclkout; /* offset 0x02C */ + unsigned int resv2[8]; + unsigned int cm1csratio; /* offset 0x050 */ + unsigned int resv3[2]; + unsigned int cm1dldiff; /* offset 0x05C */ + unsigned int cm1iclkout; /* offset 0x060 */ + unsigned int resv4[8]; + unsigned int cm2csratio; /* offset 0x084 */ + unsigned int resv5[2]; + unsigned int cm2dldiff; /* offset 0x090 */ + unsigned int cm2iclkout; /* offset 0x094 */ + unsigned int resv6[3]; +}; + +struct ddr_data_regs { + unsigned int dt0rdsratio0; /* offset 0x0C8 */ + unsigned int resv1[4]; + unsigned int dt0wdsratio0; /* offset 0x0DC */ + unsigned int resv2[4]; + unsigned int dt0wiratio0; /* offset 0x0F0 */ + unsigned int resv3; + unsigned int dt0wimode0; /* offset 0x0F8 */ + unsigned int dt0giratio0; /* offset 0x0FC */ + unsigned int resv4; + unsigned int dt0gimode0; /* offset 0x104 */ + unsigned int dt0fwsratio0; /* offset 0x108 */ + unsigned int resv5[4]; + unsigned int dt0dqoffset; /* offset 0x11C */ + unsigned int dt0wrsratio0; /* offset 0x120 */ + unsigned int resv6[4]; + unsigned int dt0rdelays0; /* offset 0x134 */ + unsigned int dt0dldiff0; /* offset 0x138 */ + unsigned int resv7[12]; +}; /** * This structure represents the DDR registers on AM33XX devices. @@ -194,12 +234,12 @@ struct ddr_data { /** * Configure DDR CMD control registers */ -void config_cmd_ctrl(const struct cmd_control *cmd); +void config_cmd_ctrl(const struct cmd_control *cmd, int nr); /** * Configure DDR DATA registers */ -void config_ddr_data(int data_macrono, const struct ddr_data *data); +void config_ddr_data(const struct ddr_data *data, int nr); /** * This structure represents the DDR io control on AM33XX devices. @@ -227,6 +267,6 @@ struct ddr_ctrl { void config_ddr(unsigned int pll, unsigned int ioctrl, const struct ddr_data *data, const struct cmd_control *ctrl, - const struct emif_regs *regs); + const struct emif_regs *regs, int nr); #endif /* _DDR_DEFS_H */ -- cgit v1.2.3