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authorLucile Quirion <lucile.quirion@savoirfairelinux.com>2015-06-30 17:17:47 -0400
committerStefano Babic <sbabic@denx.de>2015-09-02 15:26:13 +0200
commit9ee16897a24dc5643c44b275cca4ad78bce2c56d (patch)
tree89c1c7bdf3ceb59ea8fcba4a433850c923ee4812 /board/technologic/ts4800/ts4800.c
parent0d8c32dd2827f6afb9752c0dcb3b87878bc71b39 (diff)
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ARM: ts4800: add basic board support
This commit adds basic support including: MMC, Serial console, TS4800 watchdog The config use CONFIG_SKIP_LOWLEVEL_INIT as U-boot is used as a second stage bootloader. Signed-off-by: Lucile Quirion <lucile.quirion@savoirfairelinux.com> signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com> Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'board/technologic/ts4800/ts4800.c')
-rw-r--r--board/technologic/ts4800/ts4800.c154
1 files changed, 154 insertions, 0 deletions
diff --git a/board/technologic/ts4800/ts4800.c b/board/technologic/ts4800/ts4800.c
new file mode 100644
index 0000000..0a8d43e
--- /dev/null
+++ b/board/technologic/ts4800/ts4800.c
@@ -0,0 +1,154 @@
+/*
+ * (C) Copyright 2015 Savoir-faire Linux Inc.
+ *
+ * Derived from MX51EVK code by
+ * Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux-mx51.h>
+#include <asm/errno.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/clock.h>
+#include <asm/imx-common/mx5_video.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <mc13892.h>
+
+#include "ts4800.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg esdhc_cfg[2] = {
+ {MMC_SDHC1_BASE_ADDR},
+ {MMC_SDHC2_BASE_ADDR},
+};
+#endif
+
+int dram_init(void)
+{
+ /* dram_init must store complete ramsize in gd->ram_size */
+ gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+ PHYS_SDRAM_1_SIZE);
+ return 0;
+}
+
+u32 get_board_rev(void)
+{
+ u32 rev = get_cpu_rev();
+ if (!gpio_get_value(IMX_GPIO_NR(1, 22)))
+ rev |= BOARD_REV_2_0 << BOARD_VER_OFFSET;
+ return rev;
+}
+
+#define UART_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_DSE_HIGH)
+
+static void setup_iomux_uart(void)
+{
+ static const iomux_v3_cfg_t uart_pads[] = {
+ MX51_PAD_UART1_RXD__UART1_RXD,
+ MX51_PAD_UART1_TXD__UART1_TXD,
+ NEW_PAD_CTRL(MX51_PAD_UART1_RTS__UART1_RTS, UART_PAD_CTRL),
+ NEW_PAD_CTRL(MX51_PAD_UART1_CTS__UART1_CTS, UART_PAD_CTRL),
+ };
+
+ imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
+}
+
+#ifdef CONFIG_FSL_ESDHC
+int board_mmc_getcd(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+ int ret;
+
+ imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_GPIO1_0__GPIO1_0,
+ NO_PAD_CTRL));
+ gpio_direction_input(IMX_GPIO_NR(1, 0));
+ imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_GPIO1_6__GPIO1_6,
+ NO_PAD_CTRL));
+ gpio_direction_input(IMX_GPIO_NR(1, 6));
+
+ if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
+ ret = !gpio_get_value(IMX_GPIO_NR(1, 0));
+ else
+ ret = !gpio_get_value(IMX_GPIO_NR(1, 6));
+
+ return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ static const iomux_v3_cfg_t sd1_pads[] = {
+ NEW_PAD_CTRL(MX51_PAD_SD1_CMD__SD1_CMD, PAD_CTL_DSE_MAX |
+ PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+ NEW_PAD_CTRL(MX51_PAD_SD1_CLK__SD1_CLK, PAD_CTL_DSE_MAX |
+ PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+ NEW_PAD_CTRL(MX51_PAD_SD1_DATA0__SD1_DATA0, PAD_CTL_DSE_MAX |
+ PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+ NEW_PAD_CTRL(MX51_PAD_SD1_DATA1__SD1_DATA1, PAD_CTL_DSE_MAX |
+ PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+ NEW_PAD_CTRL(MX51_PAD_SD1_DATA2__SD1_DATA2, PAD_CTL_DSE_MAX |
+ PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+ NEW_PAD_CTRL(MX51_PAD_SD1_DATA3__SD1_DATA3, PAD_CTL_DSE_MAX |
+ PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_SRE_FAST),
+ NEW_PAD_CTRL(MX51_PAD_GPIO1_0__SD1_CD, PAD_CTL_HYS),
+ NEW_PAD_CTRL(MX51_PAD_GPIO1_1__SD1_WP, PAD_CTL_HYS),
+ };
+
+ esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
+
+ imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
+
+ return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
+}
+#endif
+
+int board_early_init_f(void)
+{
+ setup_iomux_uart();
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+ return 0;
+}
+
+/*
+ * Do not overwrite the console
+ * Use always serial for U-Boot console
+ */
+int overwrite_console(void)
+{
+ return 1;
+}
+
+int checkboard(void)
+{
+ puts("Board: TS4800\n");
+
+ return 0;
+}
+
+void hw_watchdog_reset(void)
+{
+ struct ts4800_wtd_regs *wtd = (struct ts4800_wtd_regs *) (TS4800_SYSCON_BASE + 0xE);
+ /* feed the watchdog for another 10s */
+ writew(0x2, &wtd->feed);
+}
+
+void hw_watchdog_init(void)
+{
+ return;
+}