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Re: [Qemu-arm] [PATCH v3 07/10] hw/misc: use macros to define hw-strap1
From: |
Andrew Jeffery |
Subject: |
Re: [Qemu-arm] [PATCH v3 07/10] hw/misc: use macros to define hw-strap1 register on the AST2400 Aspeed SoC |
Date: |
Wed, 03 Aug 2016 09:43:11 +0930 |
On Tue, 2016-08-02 at 19:15 +0200, Cédric Le Goater wrote:
> This gives some explanation behind the magic number 0x120CE416.
>
> Signed-off-by: Cédric Le Goater <address@hidden>
Reviewed-by: Andrew Jeffery <address@hidden>
> ---
>
> Changes since v2:
>
> - more precise definitions of the hw-strap1 register
> - moved hw-strap1 to the board level.
>
> hw/arm/aspeed.c | 15 +++++-
> include/hw/misc/aspeed_scu.h | 118
> +++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 132 insertions(+), 1 deletion(-)
>
> diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
> index 4226b8dcd95c..80907b4244ea 100644
> --- a/hw/arm/aspeed.c
> +++ b/hw/arm/aspeed.c
> @@ -39,8 +39,21 @@ enum {
> PALMETTO_BMC
> };
>
> +#define PALMETTO_BMC_HW_STRAP1 ( \
> + SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
> + SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
> + SCU_AST2400_HW_STRAP_ACPI_DIS | \
> + SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
> + SCU_HW_STRAP_VGA_CLASS_CODE | \
> + SCU_HW_STRAP_LPC_RESET_PIN | \
> + SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
> + SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
> + SCU_HW_STRAP_SPI_WIDTH | \
> + SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
> + SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
> +
> static const AspeedBoardConfig aspeed_boards[] = {
> - [PALMETTO_BMC] = { "ast2400-a0", 0x120CE416 },
> + [PALMETTO_BMC] = { "ast2400-a0", PALMETTO_BMC_HW_STRAP1 },
> };
>
> static void aspeed_board_init_flashes(AspeedSMCState *s, const char
> *flashtype,
> diff --git a/include/hw/misc/aspeed_scu.h b/include/hw/misc/aspeed_scu.h
> index fdfd982288f2..0761f0880c69 100644
> --- a/include/hw/misc/aspeed_scu.h
> +++ b/include/hw/misc/aspeed_scu.h
> @@ -36,4 +36,122 @@ typedef struct AspeedSCUState {
>
> extern bool is_supported_silicon_rev(uint32_t silicon_rev);
>
> +/*
> + * Extracted from Aspeed SDK v00.03.21. Fixes and extra definitions
> + * were added.
> + *
> + * Original header file :
> + * arch/arm/mach-aspeed/include/mach/regs-scu.h
> + *
> + * Copyright (C) 2012-2020 ASPEED Technology Inc.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * History :
> + * 1. 2012/12/29 Ryan Chen Create
> + */
> +
> +/* Hardware Strapping Register definition (for Aspeed AST2400 SOC)
> + *
> + * 31:29 Software defined strapping registers
> + * 28:27 DRAM size setting (for VGA driver use)
> + * 26:24 DRAM configuration setting
> + * 23 Enable 25 MHz reference clock input
> + * 22 Enable GPIOE pass-through mode
> + * 21 Enable GPIOD pass-through mode
> + * 20 Disable LPC to decode SuperIO 0x2E/0x4E address
> + * 19 Disable ACPI function
> + * 23,18 Clock source selection
> + * 17 Enable BMC 2nd boot watchdog timer
> + * 16 SuperIO configuration address selection
> + * 15 VGA Class Code selection
> + * 14 Enable LPC dedicated reset pin function
> + * 13:12 SPI mode selection
> + * 11:10 CPU/AHB clock frequency ratio selection
> + * 9:8 H-PLL default clock frequency selection
> + * 7 Define MAC#2 interface
> + * 6 Define MAC#1 interface
> + * 5 Enable VGA BIOS ROM
> + * 4 Boot flash memory extended option
> + * 3:2 VGA memory size selection
> + * 1:0 BMC CPU boot code selection
> + */
> +#define SCU_AST2400_HW_STRAP_SW_DEFINE(x) (x << 29)
> +#define SCU_AST2400_HW_STRAP_SW_DEFINE_MASK (0x7 << 29)
> +
> +#define SCU_AST2400_HW_STRAP_DRAM_SIZE(x) (x << 27)
> +#define SCU_AST2400_HW_STRAP_DRAM_SIZE_MASK (0x3 << 27)
> +#define DRAM_SIZE_64MB 0
> +#define DRAM_SIZE_128MB 1
> +#define DRAM_SIZE_256MB 2
> +#define DRAM_SIZE_512MB 3
> +
> +#define SCU_AST2400_HW_STRAP_DRAM_CONFIG(x) (x << 24)
> +#define SCU_AST2400_HW_STRAP_DRAM_CONFIG_MASK (0x7 << 24)
> +
> +#define SCU_HW_STRAP_GPIOE_PT_EN (0x1 << 22)
> +#define SCU_HW_STRAP_GPIOD_PT_EN (0x1 << 21)
> +#define SCU_HW_STRAP_LPC_DEC_SUPER_IO (0x1 << 20)
> +#define SCU_AST2400_HW_STRAP_ACPI_DIS (0x1 << 19)
> +
> +/* bit 23, 18 [1,0] */
> +#define SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(x) ((((x & 0x3) >> 1) << 23)
> | \
> + ((x & 0x1) << 18))
> +#define SCU_AST2400_HW_STRAP_GET_CLK_SOURCE(x) ((((x >> 23) & 0x1) << 1)
> | \
> + ((x >> 18) & 0x1))
> +#define SCU_AST2400_HW_STRAP_CLK_SOURCE_MASK ((0x1 << 23) | (0x1 <<
> 18))
> +#define AST2400_CLK_25M_IN (0x1 << 23)
> +#define AST2400_CLK_24M_IN 0
> +#define AST2400_CLK_48M_IN 1
> +#define AST2400_CLK_25M_IN_24M_USB_CKI 2
> +#define AST2400_CLK_25M_IN_48M_USB_CKI 3
> +
> +#define SCU_HW_STRAP_2ND_BOOT_WDT (0x1 << 17)
> +#define SCU_HW_STRAP_SUPER_IO_CONFIG (0x1 << 16)
> +#define SCU_HW_STRAP_VGA_CLASS_CODE (0x1 << 15)
> +#define SCU_HW_STRAP_LPC_RESET_PIN (0x1 << 14)
> +
> +#define SCU_HW_STRAP_SPI_MODE(x) (x << 12)
> +#define SCU_HW_STRAP_SPI_MODE_MASK (0x3 << 12)
> +#define SCU_HW_STRAP_SPI_DIS 0
> +#define SCU_HW_STRAP_SPI_MASTER 1
> +#define SCU_HW_STRAP_SPI_M_S_EN 2
> +#define SCU_HW_STRAP_SPI_PASS_THROUGH 3
> +
> +#define SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(x) (x << 10)
> +#define SCU_AST2400_HW_STRAP_GET_CPU_AHB_RATIO(x) ((x >> 10) & 3)
> +#define SCU_AST2400_HW_STRAP_CPU_AHB_RATIO_MASK (0x3 << 10)
> +#define AST2400_CPU_AHB_RATIO_1_1 0
> +#define AST2400_CPU_AHB_RATIO_2_1 1
> +#define AST2400_CPU_AHB_RATIO_4_1 2
> +#define AST2400_CPU_AHB_RATIO_3_1 3
> +
> +#define SCU_AST2400_HW_STRAP_GET_H_PLL_CLK(x) ((x >> 8) & 0x3)
> +#define SCU_AST2400_HW_STRAP_H_PLL_CLK_MASK (0x3 << 8)
> +#define AST2400_CPU_384MHZ 0
> +#define AST2400_CPU_360MHZ 1
> +#define AST2400_CPU_336MHZ 2
> +#define AST2400_CPU_408MHZ 3
> +
> +#define SCU_HW_STRAP_MAC1_RGMII (0x1 << 7)
> +#define SCU_HW_STRAP_MAC0_RGMII (0x1 << 6)
> +#define SCU_HW_STRAP_VGA_BIOS_ROM (0x1 << 5)
> +#define SCU_HW_STRAP_SPI_WIDTH (0x1 << 4)
> +
> +#define SCU_HW_STRAP_VGA_SIZE_GET(x) ((x >> 2) & 0x3)
> +#define SCU_HW_STRAP_VGA_MASK (0x3 << 2)
> +#define SCU_HW_STRAP_VGA_SIZE_SET(x) (x << 2)
> +#define VGA_8M_DRAM 0
> +#define VGA_16M_DRAM 1
> +#define VGA_32M_DRAM 2
> +#define VGA_64M_DRAM 3
> +
> +#define SCU_AST2400_HW_STRAP_BOOT_MODE(x) (x)
> +#define AST2400_NOR_BOOT 0
> +#define AST2400_NAND_BOOT 1
> +#define AST2400_SPI_BOOT 2
> +#define AST2400_DIS_BOOT 3
> +
> #endif /* ASPEED_SCU_H */
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- Re: [Qemu-arm] [PATCH v3 04/10] palmetto-bmc: rename the Aspeed board file to aspeed.c, (continued)
- [Qemu-arm] [PATCH v3 05/10] palmetto-bmc: replace palmetto_bmc with aspeed, Cédric Le Goater, 2016/08/02
- [Qemu-arm] [PATCH v3 06/10] palmetto-bmc: add board specific configuration, Cédric Le Goater, 2016/08/02
- [Qemu-arm] [PATCH v3 07/10] hw/misc: use macros to define hw-strap1 register on the AST2400 Aspeed SoC, Cédric Le Goater, 2016/08/02
- [Qemu-arm] [PATCH v3 08/10] aspeed: add a AST2500 SoC and support to the SCU and SDMC controllers controllers, Cédric Le Goater, 2016/08/02
- [Qemu-arm] [PATCH v3 09/10] arm: add support for an ast2500 evaluation board, Cédric Le Goater, 2016/08/02
- [Qemu-arm] [PATCH v3 10/10] palmetto-bmc: remove extra no_sdcard assignement, Cédric Le Goater, 2016/08/02