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u-boot/arch/arm/mach-rockchip/rk3036-board-spl.c

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rockchip: rk3036: Add core Soc start-up code rk3036 only 4K size SRAM for SPL, so only support timer, uart, sdram driver in SPL stage, when finish initial sdram, back to bootrom.And in rk3036 sdmmc and debug uart use same iomux, so if you want to boot from sdmmc, you must disable debug uart. Signed-off-by: Lin Huang <hl@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org> Fixed build error for chromebook_jerry, firefly-rk3288: Signed-off-by: Simon Glass <sjg@chromium.org> Series-changes: 8 - Fix build error for chromebook_jerry, firefly-rk3288
2015-11-17 06:20:27 +00:00
/*
* (C) Copyright 2015 Rockchip Electronics Co., Ltd
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
rockchip: Use the debug UART on rk3036 Rather than using a new debug UART implementation, use the standard one provided by U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
2015-12-14 04:37:00 +00:00
#include <debug_uart.h>
rockchip: rk3036: Add core Soc start-up code rk3036 only 4K size SRAM for SPL, so only support timer, uart, sdram driver in SPL stage, when finish initial sdram, back to bootrom.And in rk3036 sdmmc and debug uart use same iomux, so if you want to boot from sdmmc, you must disable debug uart. Signed-off-by: Lin Huang <hl@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org> Fixed build error for chromebook_jerry, firefly-rk3288: Signed-off-by: Simon Glass <sjg@chromium.org> Series-changes: 8 - Fix build error for chromebook_jerry, firefly-rk3288
2015-11-17 06:20:27 +00:00
#include <asm/io.h>
rockchip: Move bootrom-related declarations to a header So far spl-boards have declared the back_to_brom() function as simple extern in the files themself. That doesn't scale well if every boards defines this on its own. Therefore move the declarations to a bootrom header. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-02-18 18:46:26 +00:00
#include <asm/arch/bootrom.h>
rockchip: rk3036: Add core Soc start-up code rk3036 only 4K size SRAM for SPL, so only support timer, uart, sdram driver in SPL stage, when finish initial sdram, back to bootrom.And in rk3036 sdmmc and debug uart use same iomux, so if you want to boot from sdmmc, you must disable debug uart. Signed-off-by: Lin Huang <hl@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org> Fixed build error for chromebook_jerry, firefly-rk3288: Signed-off-by: Simon Glass <sjg@chromium.org> Series-changes: 8 - Fix build error for chromebook_jerry, firefly-rk3288
2015-11-17 06:20:27 +00:00
#include <asm/arch/grf_rk3036.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sdram_rk3036.h>
#include <asm/arch/timer.h>
#include <asm/arch/uart.h>
#define GRF_BASE 0x20008000
#define DEBUG_UART_BASE 0x20068000
void board_init_f(ulong dummy)
{
#ifdef EARLY_DEBUG
rk3036: Fix unused variable warning The variable grf is only referenced if EARLY_DEBUG is defined so move the declaration to be under the existing guard. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-09 02:14:20 +00:00
struct rk3036_grf * const grf = (void *)GRF_BASE;
rockchip: rk3036: Add core Soc start-up code rk3036 only 4K size SRAM for SPL, so only support timer, uart, sdram driver in SPL stage, when finish initial sdram, back to bootrom.And in rk3036 sdmmc and debug uart use same iomux, so if you want to boot from sdmmc, you must disable debug uart. Signed-off-by: Lin Huang <hl@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org> Fixed build error for chromebook_jerry, firefly-rk3288: Signed-off-by: Simon Glass <sjg@chromium.org> Series-changes: 8 - Fix build error for chromebook_jerry, firefly-rk3288
2015-11-17 06:20:27 +00:00
/*
* NOTE: sd card and debug uart use same iomux in rk3036,
* so if you enable uart,
* you can not boot from sdcard
*/
rk_clrsetreg(&grf->gpio1c_iomux,
GPIO1C3_MASK << GPIO1C3_SHIFT |
GPIO1C2_MASK << GPIO1C2_SHIFT,
GPIO1C3_UART2_SOUT << GPIO1C3_SHIFT |
GPIO1C2_UART2_SIN << GPIO1C2_SHIFT);
rockchip: Use the debug UART on rk3036 Rather than using a new debug UART implementation, use the standard one provided by U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
2015-12-14 04:37:00 +00:00
debug_uart_init();
rockchip: rk3036: Add core Soc start-up code rk3036 only 4K size SRAM for SPL, so only support timer, uart, sdram driver in SPL stage, when finish initial sdram, back to bootrom.And in rk3036 sdmmc and debug uart use same iomux, so if you want to boot from sdmmc, you must disable debug uart. Signed-off-by: Lin Huang <hl@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org> Fixed build error for chromebook_jerry, firefly-rk3288: Signed-off-by: Simon Glass <sjg@chromium.org> Series-changes: 8 - Fix build error for chromebook_jerry, firefly-rk3288
2015-11-17 06:20:27 +00:00
#endif
rockchip_timer_init();
sdram_init();
/* return to maskrom */
rockchip: back-to-bootrom: allow passing a cmd to the bootrom The BROM supports forcing it to enter download-mode, if an appropriate result/cmd-word is returned to it. There already is a series to support this in review, so this prepares the (newly C-version) of the back-to-bootrom code to accept a cmd to passed on to the BROM. All the existing call-sites are adjusted to match the changed function signature. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Andy Yan <andy.yan@rock-chips.com>
2017-10-10 14:21:16 +00:00
back_to_bootrom(BROM_BOOT_NEXTSTAGE);
rockchip: rk3036: Add core Soc start-up code rk3036 only 4K size SRAM for SPL, so only support timer, uart, sdram driver in SPL stage, when finish initial sdram, back to bootrom.And in rk3036 sdmmc and debug uart use same iomux, so if you want to boot from sdmmc, you must disable debug uart. Signed-off-by: Lin Huang <hl@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org> Fixed build error for chromebook_jerry, firefly-rk3288: Signed-off-by: Simon Glass <sjg@chromium.org> Series-changes: 8 - Fix build error for chromebook_jerry, firefly-rk3288
2015-11-17 06:20:27 +00:00
}
/* Place Holders */
void board_init_r(gd_t *id, ulong dest_addr)
{
/*
* Function attribute is no-return
* This Function never executes
*/
while (1)
;
}
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