diff options
Diffstat (limited to 'plat/socionext/uniphier/uniphier_boot_device.c')
| -rw-r--r-- | plat/socionext/uniphier/uniphier_boot_device.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/plat/socionext/uniphier/uniphier_boot_device.c b/plat/socionext/uniphier/uniphier_boot_device.c new file mode 100644 index 00000000..78ca8ef0 --- /dev/null +++ b/plat/socionext/uniphier/uniphier_boot_device.c @@ -0,0 +1,164 @@ +/* + * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <assert.h> +#include <mmio.h> +#include <stdbool.h> +#include <stddef.h> +#include <utils_def.h> + +#include "uniphier.h" + +#define UNIPHIER_PINMON0 0x5f900100 +#define UNIPHIER_PINMON2 0x5f900108 + +static int uniphier_ld11_is_usb_boot(uint32_t pinmon) +{ + return !!(~pinmon & 0x00000080); +} + +static int uniphier_ld20_is_usb_boot(uint32_t pinmon) +{ + return !!(~pinmon & 0x00000780); +} + +static int uniphier_pxs3_is_usb_boot(uint32_t pinmon) +{ + uint32_t pinmon2 = mmio_read_32(UNIPHIER_PINMON2); + + return !!(pinmon2 & BIT(31)); +} + +static const unsigned int uniphier_ld11_boot_device_table[] = { + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_NOR, +}; + +static unsigned int uniphier_ld11_get_boot_device(uint32_t pinmon) +{ + unsigned int boot_sel = (pinmon >> 1) & 0x1f; + + assert(boot_sel < ARRAY_SIZE(uniphier_ld11_boot_device_table)); + + return uniphier_ld11_boot_device_table[boot_sel]; +} + +static const unsigned int uniphier_pxs3_boot_device_table[] = { + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_EMMC, + UNIPHIER_BOOT_DEVICE_NAND, + UNIPHIER_BOOT_DEVICE_NAND, +}; + +static unsigned int uniphier_pxs3_get_boot_device(uint32_t pinmon) +{ + unsigned int boot_sel = (pinmon >> 1) & 0xf; + + assert(boot_sel < ARRAY_SIZE(uniphier_pxs3_boot_device_table)); + + return uniphier_pxs3_boot_device_table[boot_sel]; +} + +struct uniphier_boot_device_info { + int (*is_usb_boot)(uint32_t pinmon); + unsigned int (*get_boot_device)(uint32_t pinmon); +}; + +static const struct uniphier_boot_device_info uniphier_boot_device_info[] = { + [UNIPHIER_SOC_LD11] = { + .is_usb_boot = uniphier_ld11_is_usb_boot, + .get_boot_device = uniphier_ld11_get_boot_device, + }, + [UNIPHIER_SOC_LD20] = { + .is_usb_boot = uniphier_ld20_is_usb_boot, + .get_boot_device = uniphier_ld11_get_boot_device, + }, + [UNIPHIER_SOC_PXS3] = { + .is_usb_boot = uniphier_pxs3_is_usb_boot, + .get_boot_device = uniphier_pxs3_get_boot_device, + }, +}; + +unsigned int uniphier_get_boot_device(unsigned int soc) +{ + const struct uniphier_boot_device_info *info; + uint32_t pinmon; + + assert(soc < ARRAY_SIZE(uniphier_boot_device_info)); + info = &uniphier_boot_device_info[soc]; + + pinmon = mmio_read_32(UNIPHIER_PINMON0); + + if (!(pinmon & BIT(29))) + return UNIPHIER_BOOT_DEVICE_NOR; + + if (info->is_usb_boot(pinmon)) + return UNIPHIER_BOOT_DEVICE_USB; + + return info->get_boot_device(pinmon); +} + +static const bool uniphier_have_onchip_scp[] = { + [UNIPHIER_SOC_LD11] = true, + [UNIPHIER_SOC_LD20] = true, + [UNIPHIER_SOC_PXS3] = false, +}; + +unsigned int uniphier_get_boot_master(unsigned int soc) +{ + assert(soc < ARRAY_SIZE(uniphier_have_onchip_scp)); + + if (uniphier_have_onchip_scp[soc]) { + if (mmio_read_32(UNIPHIER_PINMON0) & BIT(27)) + return UNIPHIER_BOOT_MASTER_THIS; + else + return UNIPHIER_BOOT_MASTER_SCP; + } else { + return UNIPHIER_BOOT_MASTER_EXT; + } +} |