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author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
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committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
tree | 65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/board/faraday/a320evb | |
download | qemu-3f2546b2ef55b661fd8dd69682b38992225e86f6.tar.gz qemu-3f2546b2ef55b661fd8dd69682b38992225e86f6.tar.bz2 qemu-3f2546b2ef55b661fd8dd69682b38992225e86f6.zip |
Diffstat (limited to 'roms/u-boot/board/faraday/a320evb')
-rw-r--r-- | roms/u-boot/board/faraday/a320evb/Makefile | 9 | ||||
-rw-r--r-- | roms/u-boot/board/faraday/a320evb/a320evb.c | 59 | ||||
-rw-r--r-- | roms/u-boot/board/faraday/a320evb/lowlevel_init.S | 106 |
3 files changed, 174 insertions, 0 deletions
diff --git a/roms/u-boot/board/faraday/a320evb/Makefile b/roms/u-boot/board/faraday/a320evb/Makefile new file mode 100644 index 00000000..518ce3fc --- /dev/null +++ b/roms/u-boot/board/faraday/a320evb/Makefile @@ -0,0 +1,9 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := a320evb.o +obj-y += lowlevel_init.o diff --git a/roms/u-boot/board/faraday/a320evb/a320evb.c b/roms/u-boot/board/faraday/a320evb/a320evb.c new file mode 100644 index 00000000..c42635b7 --- /dev/null +++ b/roms/u-boot/board/faraday/a320evb/a320evb.c @@ -0,0 +1,59 @@ +/* + * (C) Copyright 2009 Faraday Technology + * Po-Yu Chuang <ratbert@faraday-tech.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <netdev.h> +#include <asm/io.h> + +#include <faraday/ftsmc020.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Miscellaneous platform dependent initialisations + */ + +int board_init(void) +{ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + ftsmc020_init(); /* initialize Flash */ + return 0; +} + +int dram_init(void) +{ + unsigned long sdram_base = PHYS_SDRAM_1; + unsigned long expected_size = PHYS_SDRAM_1_SIZE; + unsigned long actual_size; + + actual_size = get_ram_size((void *)sdram_base, expected_size); + + gd->ram_size = actual_size; + + if (expected_size != actual_size) + printf("Warning: Only %lu of %lu MiB SDRAM is working\n", + actual_size >> 20, expected_size >> 20); + + return 0; +} + +int board_eth_init(bd_t *bd) +{ + return ftmac100_initialize(bd); +} + +ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info) +{ + if (banknum == 0) { /* non-CFI boot flash */ + info->portwidth = FLASH_CFI_8BIT; + info->chipwidth = FLASH_CFI_BY8; + info->interface = FLASH_CFI_X8; + return 1; + } else + return 0; +} diff --git a/roms/u-boot/board/faraday/a320evb/lowlevel_init.S b/roms/u-boot/board/faraday/a320evb/lowlevel_init.S new file mode 100644 index 00000000..d366260a --- /dev/null +++ b/roms/u-boot/board/faraday/a320evb/lowlevel_init.S @@ -0,0 +1,106 @@ +/* + * (C) Copyright 2009 Faraday Technology + * Po-Yu Chuang <ratbert@faraday-tech.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <config.h> +#include <version.h> + +#include <asm/macro.h> +#include <faraday/ftsdmc020.h> + +/* + * parameters for the SDRAM controller + */ +#define TP0_A (CONFIG_FTSDMC020_BASE + FTSDMC020_OFFSET_TP0) +#define TP1_A (CONFIG_FTSDMC020_BASE + FTSDMC020_OFFSET_TP1) +#define CR_A (CONFIG_FTSDMC020_BASE + FTSDMC020_OFFSET_CR) +#define B0_BSR_A (CONFIG_FTSDMC020_BASE + FTSDMC020_OFFSET_BANK0_BSR) +#define ACR_A (CONFIG_FTSDMC020_BASE + FTSDMC020_OFFSET_ACR) + +#define TP0_D CONFIG_SYS_FTSDMC020_TP0 +#define TP1_D CONFIG_SYS_FTSDMC020_TP1 +#define CR_D1 FTSDMC020_CR_IPREC +#define CR_D2 FTSDMC020_CR_ISMR +#define CR_D3 FTSDMC020_CR_IREF + +#define B0_BSR_D (CONFIG_SYS_FTSDMC020_BANK0_BSR | \ + FTSDMC020_BANK_BASE(PHYS_SDRAM_1)) +#define ACR_D FTSDMC020_ACR_TOC(0x18) + +/* + * numeric 7 segment display + */ +.macro led, num + write32 CONFIG_DEBUG_LED, \num +.endm + +/* + * Waiting for SDRAM to set up + */ +.macro wait_sdram + ldr r0, =CONFIG_FTSDMC020_BASE +1: + ldr r1, [r0, #FTSDMC020_OFFSET_CR] + cmp r1, #0 + bne 1b +.endm + +.globl lowlevel_init +lowlevel_init: + mov r11, lr + + led 0x0 + + bl init_sdmc + + led 0x1 + + /* everything is fine now */ + mov lr, r11 + mov pc, lr + +/* + * memory initialization + */ +init_sdmc: + led 0x10 + + /* set SDRAM register */ + + write32 TP0_A, TP0_D + led 0x11 + + write32 TP1_A, TP1_D + led 0x12 + + /* set to precharge */ + write32 CR_A, CR_D1 + led 0x13 + + wait_sdram + led 0x14 + + /* set mode register */ + write32 CR_A, CR_D2 + led 0x15 + + wait_sdram + led 0x16 + + /* set to refresh */ + write32 CR_A, CR_D3 + led 0x17 + + wait_sdram + led 0x18 + + write32 B0_BSR_A, B0_BSR_D + led 0x19 + + write32 ACR_A, ACR_D + led 0x1a + + mov pc, lr |