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aspeed: add a ast2500 SoC and support to the SCU and SDMC controllers

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Based on previous work done by Andrew Jeffery <andrew@aj.id.au>.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-9-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Cédric Le Goater 2016-09-22 18:13:05 +01:00 • committed by Peter Maydell
parent 8da33ef757
commit 365aff1eaa
4 changed files with 122 additions and 1 deletions
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75
include/hw/misc/aspeed_scu.h
View file

@ -33,6 +33,7 @@ typedef struct AspeedSCUState {
#define AST2400_A0_SILICON_REV 0x02000303U
#define AST2500_A0_SILICON_REV 0x04000303U
#define AST2500_A1_SILICON_REV 0x04010303U
extern bool is_supported_silicon_rev(uint32_t silicon_rev);
@ -154,4 +155,78 @@ extern bool is_supported_silicon_rev(uint32_t silicon_rev);
#define AST2400_SPI_BOOT 2
#define AST2400_DIS_BOOT 3
/*
* Hardware strapping register definition (for Aspeed AST2500 SoC and
* higher)
*
* 31 Enable SPI Flash Strap Auto Fetch Mode
* 30 Enable GPIO Strap Mode
* 29 Select UART Debug Port
* 28 Reserved (1)
* 27 Enable fast reset mode for ARM ICE debugger
* 26 Enable eSPI flash mode
* 25 Enable eSPI mode
* 24 Select DDR4 SDRAM
* 23 Select 25 MHz reference clock input mode
* 22 Enable GPIOE pass-through mode
* 21 Enable GPIOD pass-through mode
* 20 Disable LPC to decode SuperIO 0x2E/0x4E address
* 19 Enable ACPI function
* 18 Select USBCKI input frequency
* 17 Enable BMC 2nd boot watchdog timer
* 16 SuperIO configuration address selection
* 15 VGA Class Code selection
* 14 Select dedicated LPC reset input
* 13:12 SPI mode selection
* 11:9 AXI/AHB clock frequency ratio selection
* 8 Reserved (0)
* 7 Define MAC#2 interface
* 6 Define MAC#1 interface
* 5 Enable dedicated VGA BIOS ROM
* 4 Reserved (0)
* 3:2 VGA memory size selection
* 1 Reserved (1)
* 0 Disable CPU boot
*/
#define SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE (0x1 << 31)
#define SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE (0x1 << 30)
#define SCU_AST2500_HW_STRAP_UART_DEBUG (0x1 << 29)
#define UART_DEBUG_UART1 0
#define UART_DEBUG_UART5 1
#define SCU_AST2500_HW_STRAP_RESERVED28 (0x1 << 28)
#define SCU_AST2500_HW_STRAP_FAST_RESET_DBG (0x1 << 27)
#define SCU_AST2500_HW_STRAP_ESPI_FLASH_ENABLE (0x1 << 26)
#define SCU_AST2500_HW_STRAP_ESPI_ENABLE (0x1 << 25)
#define SCU_AST2500_HW_STRAP_DDR4_ENABLE (0x1 << 24)
#define SCU_AST2500_HW_STRAP_ACPI_ENABLE (0x1 << 19)
#define SCU_AST2500_HW_STRAP_USBCKI_FREQ (0x1 << 18)
#define USBCKI_FREQ_24MHZ 0
#define USBCKI_FREQ_28MHZ 1
#define SCU_AST2500_HW_STRAP_SET_AXI_AHB_RATIO(x) ((x) << 9)
#define SCU_AST2500_HW_STRAP_GET_AXI_AHB_RATIO(x) (((x) >> 9) & 7)
#define SCU_AST2500_HW_STRAP_CPU_AXI_RATIO_MASK (0x7 << 9)
#define AXI_AHB_RATIO_UNDEFINED 0
#define AXI_AHB_RATIO_2_1 1
#define AXI_AHB_RATIO_3_1 2
#define AXI_AHB_RATIO_4_1 3
#define AXI_AHB_RATIO_5_1 4
#define AXI_AHB_RATIO_6_1 5
#define AXI_AHB_RATIO_7_1 6
#define AXI_AHB_RATIO_8_1 7
#define SCU_AST2500_HW_STRAP_RESERVED1 (0x1 << 1)
#define SCU_AST2500_HW_STRAP_DIS_BOOT (0x1 << 0)
#define AST2500_HW_STRAP1_DEFAULTS ( \
SCU_AST2500_HW_STRAP_RESERVED28 | \
SCU_HW_STRAP_2ND_BOOT_WDT | \
SCU_HW_STRAP_VGA_CLASS_CODE | \
SCU_HW_STRAP_LPC_RESET_PIN | \
SCU_AST2500_HW_STRAP_SET_AXI_AHB_RATIO(AXI_AHB_RATIO_2_1) | \
SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
SCU_AST2500_HW_STRAP_RESERVED1)
#endif /* ASPEED_SCU_H */