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/*
* Copyright (c) 2017-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <stdint.h>
#include <platform_def.h>
#include <arch_helpers.h>
#include <drivers/io/io_block.h>
#include <lib/mmio.h>
#include <lib/utils_def.h>
#include "uniphier.h"
#define UNIPHIER_LD11_USB_DESC_BASE 0x30010000
#define UNIPHIER_LD20_USB_DESC_BASE 0x30014000
#define UNIPHIER_PXS3_USB_DESC_BASE 0x30014000
#define UNIPHIER_SRB_OCM_CONT 0x61200000
struct uniphier_ld11_trans_op {
uint8_t __pad[48];
};
struct uniphier_ld11_op {
uint8_t __pad[56];
struct uniphier_ld11_trans_op *trans_op;
void *__pad2;
void *dev_desc;
};
struct uniphier_ld20_trans_op {
uint8_t __pad[40];
};
struct uniphier_ld20_op {
uint8_t __pad[192];
struct uniphier_ld20_trans_op *trans_op;
void *__pad2;
void *dev_desc;
};
struct uniphier_pxs3_op {
uint8_t __pad[184];
struct uniphier_ld20_trans_op *trans_op;
void *__pad2;
void *dev_desc;
};
static int (*__uniphier_usb_read)(int lba, uintptr_t buf, size_t size);
static void uniphier_ld11_usb_init(void)
{
struct uniphier_ld11_op *op = (void *)UNIPHIER_LD11_USB_DESC_BASE;
op->trans_op = (void *)(op + 1);
op->dev_desc = op->trans_op + 1;
}
static int uniphier_ld11_usb_read(int lba, uintptr_t buf, size_t size)
{
static int (*rom_usb_read)(uintptr_t desc, unsigned int lba,
unsigned int size, uintptr_t buf);
uintptr_t func_addr;
func_addr = uniphier_get_soc_revision() == 1 ? 0x3880 : 0x3958;
rom_usb_read = (__typeof(rom_usb_read))func_addr;
return rom_usb_read(UNIPHIER_LD11_USB_DESC_BASE, lba, size, buf);
}
static void uniphier_ld20_usb_init(void)
{
struct uniphier_ld20_op *op = (void *)UNIPHIER_LD20_USB_DESC_BASE;
op->trans_op = (void *)(op + 1);
op->dev_desc = op->trans_op + 1;
}
static int uniphier_ld20_usb_read(int lba, uintptr_t buf, size_t size)
{
static int (*rom_usb_read)(uintptr_t desc, unsigned int lba,
unsigned int size, uintptr_t buf);
int ret;
rom_usb_read = (__typeof(rom_usb_read))0x37f0;
mmio_write_32(UNIPHIER_SRB_OCM_CONT, 0x1ff);
/* ROM-API - return 1 on success, 0 on error */
ret = rom_usb_read(UNIPHIER_LD20_USB_DESC_BASE, lba, size, buf);
mmio_write_32(UNIPHIER_SRB_OCM_CONT, 0);
return ret ? 0 : -1;
}
static void uniphier_pxs3_usb_init(void)
{
struct uniphier_pxs3_op *op = (void *)UNIPHIER_PXS3_USB_DESC_BASE;
op->trans_op = (void *)(op + 1);
op->dev_desc = op->trans_op + 1;
}
static int uniphier_pxs3_usb_read(int lba, uintptr_t buf, size_t size)
{
static int (*rom_usb_read)(uintptr_t desc, unsigned int lba,
unsigned int size, uintptr_t buf);
int ret;
rom_usb_read = (__typeof(rom_usb_read))0x39e8;
/* ROM-API - return 1 on success, 0 on error */
ret = rom_usb_read(UNIPHIER_PXS3_USB_DESC_BASE, lba, size, buf);
return ret ? 0 : -1;
}
struct uniphier_usb_rom_param {
void (*init)(void);
int (*read)(int lba, uintptr_t buf, size_t size);
};
static const struct uniphier_usb_rom_param uniphier_usb_rom_params[] = {
[UNIPHIER_SOC_LD11] = {
.init = uniphier_ld11_usb_init,
.read = uniphier_ld11_usb_read,
},
[UNIPHIER_SOC_LD20] = {
.init = uniphier_ld20_usb_init,
.read = uniphier_ld20_usb_read,
},
[UNIPHIER_SOC_PXS3] = {
.init = uniphier_pxs3_usb_init,
.read = uniphier_pxs3_usb_read,
},
};
static size_t uniphier_usb_read(int lba, uintptr_t buf, size_t size)
{
int ret;
inv_dcache_range(buf, size);
ret = __uniphier_usb_read(lba, buf, size);
inv_dcache_range(buf, size);
return ret ? 0 : size;
}
static struct io_block_dev_spec uniphier_usb_dev_spec = {
.ops = {
.read = uniphier_usb_read,
},
.block_size = 512,
};
int uniphier_usb_init(unsigned int soc,
struct io_block_dev_spec **block_dev_spec)
{
const struct uniphier_usb_rom_param *param;
assert(soc < ARRAY_SIZE(uniphier_usb_rom_params));
param = &uniphier_usb_rom_params[soc];
if (param->init)
param->init();
__uniphier_usb_read = param->read;
*block_dev_spec = &uniphier_usb_dev_spec;
return 0;
}
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