with this macro, we should be able to cover most of existing ar9331 based boards.
Signed-off-by: Oleksij Rempel <[email protected]> --- arch/mips/mach-ath79/include/mach/ar71xx_regs.h | 1 + arch/mips/mach-ath79/include/mach/pbl_macros.h | 37 +++++++++++++++++++++++-- 2 files changed, 35 insertions(+), 3 deletions(-) diff --git a/arch/mips/mach-ath79/include/mach/ar71xx_regs.h b/arch/mips/mach-ath79/include/mach/ar71xx_regs.h index 31d33b3c4..f73700b5b 100644 --- a/arch/mips/mach-ath79/include/mach/ar71xx_regs.h +++ b/arch/mips/mach-ath79/include/mach/ar71xx_regs.h @@ -139,6 +139,7 @@ #define AR71XX_RESET_FULL_CHIP BIT(24) +#define AR933X_BOOTSTRAP_MEM_TYPE BIT(13) #define AR933X_BOOTSTRAP_REF_CLK_40 BIT(0) #endif /* __ASM_MACH_AR71XX_REGS_H */ diff --git a/arch/mips/mach-ath79/include/mach/pbl_macros.h b/arch/mips/mach-ath79/include/mach/pbl_macros.h index 680fcbb86..9e4859b19 100644 --- a/arch/mips/mach-ath79/include/mach/pbl_macros.h +++ b/arch/mips/mach-ath79/include/mach/pbl_macros.h @@ -172,6 +172,40 @@ .set pop .endm +#define RESET_REG_BOOTSTRAP ((KSEG1 | AR71XX_RESET_BASE) \ + | AR933X_RESET_REG_BOOTSTRAP) + +.macro pbl_ar9331_ram_generic_config + .set push + .set noreorder + + li t5, RESET_REG_BOOTSTRAP + /* Documentation and source code of existing boot loaders disagree at + * this place. Doc says: MEM_TYPE[13:12]: + * - 00 = SDRAM + * - 01 = DDR1 + * - 10 = DDR2 + * The source code of most loaders do not care about BIT(12). So we do + * the same. + */ + li t6, AR933X_BOOTSTRAP_MEM_TYPE + lw t7, 0(t5); + and t6, t7, t6 + beq zero, t6, pbl_ar9331_ram_generic_ddr1 + nop + +pbl_ar9331_ram_generic_ddr2: + pbl_ar9331_ddr2_config + b pbl_ar9331_ram_generic_config + nop + +pbl_ar9331_ram_generic_ddr1: + pbl_ar9331_ddr1_config + +pbl_ar9331_ram_generic_config: + .set pop +.endm + #define GPIO_FUNC ((KSEG1 | AR71XX_GPIO_BASE) | AR71XX_GPIO_REG_FUNC) .macro pbl_ar9331_uart_enable @@ -179,9 +213,6 @@ | AR933X_GPIO_FUNC_RSRV15, GPIO_FUNC .endm -#define RESET_REG_BOOTSTRAP ((KSEG1 | AR71XX_RESET_BASE) \ - | AR933X_RESET_REG_BOOTSTRAP) - .macro pbl_ar9331_mdio_gpio_enable /* Bit 18 enables MDC and MDIO function on GPIO26 and GPIO28 */ pbl_reg_set (1 << 18), RESET_REG_BOOTSTRAP -- 2.14.1 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
