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u-boot/board/cavium/thunderx/atf.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

309 lines
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// SPDX-License-Identifier: GPL-2.0+
/**
* (C) Copyright 2014, Cavium Inc.
**/
#include <common.h>
#include <asm/io.h>
#include <asm/system.h>
#include <cavium/thunderx_svc.h>
#include <cavium/atf.h>
#include <cavium/atf_part.h>
#include <asm/psci.h>
#include <malloc.h>
ssize_t atf_read_mmc(uintptr_t offset, void *buffer, size_t size)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_MMC_READ;
regs.regs[1] = offset;
regs.regs[2] = size;
regs.regs[3] = (uintptr_t)buffer;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_read_nor(uintptr_t offset, void *buffer, size_t size)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_NOR_READ;
regs.regs[1] = offset;
regs.regs[2] = size;
regs.regs[3] = (uintptr_t)buffer;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_get_pcount(void)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_PART_COUNT;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_get_part(struct storage_partition *part, unsigned int index)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_GET_PART;
regs.regs[1] = (uintptr_t)part;
regs.regs[2] = index;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_erase_nor(uintptr_t offset, size_t size)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_NOR_ERASE;
regs.regs[1] = offset;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_write_nor(uintptr_t offset, const void *buffer, size_t size)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_NOR_WRITE;
regs.regs[1] = offset;
regs.regs[2] = size;
regs.regs[3] = (uintptr_t)buffer;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_write_mmc(uintptr_t offset, const void *buffer, size_t size)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_MMC_WRITE;
regs.regs[1] = offset;
regs.regs[2] = size;
regs.regs[3] = (uintptr_t)buffer;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_dram_size(unsigned int node)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_DRAM_SIZE;
regs.regs[1] = node;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_node_count(void)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_NODE_COUNT;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_env_count(void)
{
struct pt_regs regs;
regs.regs[0] = THUNDERX_ENV_COUNT;
smc_call(&regs);
return regs.regs[0];
}
ssize_t atf_env_string(size_t index, char *str)
{
uint64_t *buf = (void *)str;
struct pt_regs regs;
regs.regs[0] = THUNDERX_ENV_STRING;
regs.regs[1] = index;
smc_call(&regs);
if (regs.regs > 0) {
buf[0] = regs.regs[0];
buf[1] = regs.regs[1];
buf[2] = regs.regs[2];
buf[3] = regs.regs[3];
return 1;
} else {
return regs.regs[0];
}
}
#ifdef CONFIG_CMD_ATF
static void atf_print_ver(void)
{
struct pt_regs regs;
regs.regs[0] = ARM_STD_SVC_VERSION;
smc_call(&regs);
printf("ARM Std FW version: %ld.%ld\n", regs.regs[0], regs.regs[1]);
regs.regs[0] = THUNDERX_SVC_VERSION;
smc_call(&regs);
printf("ThunderX OEM ver: %ld.%ld\n", regs.regs[0], regs.regs[1]);
}
static void atf_print_uid(void)
{
}
static void atf_print_part_table(void)
{
size_t pcount;
unsigned long i;
int ret;
char *ptype;
struct storage_partition *part = (void *)CONFIG_SYS_LOWMEM_BASE;
pcount = atf_get_pcount();
printf("Partition count: %lu\n\n", pcount);
printf("%10s %10s %10s\n", "Type", "Size", "Offset");
for (i = 0; i < pcount; i++) {
ret = atf_get_part(part, i);
if (ret < 0) {
printf("Uknown error while reading partition: %d\n",
ret);
return;
}
switch (part->type) {
case PARTITION_NBL1FW_REST:
ptype = "NBL1FW";
break;
case PARTITION_BL2_BL31:
ptype = "BL2_BL31";
break;
case PARTITION_UBOOT:
ptype = "BOOTLDR";
break;
case PARTITION_KERNEL:
ptype = "KERNEL";
break;
case PARTITION_DEVICE_TREE:
ptype = "DEVTREE";
break;
default:
ptype = "UNKNOWN";
}
printf("%10s %10d %10lx\n", ptype, part->size, part->offset);
}
}
int do_atf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ssize_t ret;
size_t size, offset;
void *buffer = 0;
unsigned int index, node;
char str[4 * sizeof(uint64_t)];
if ((argc == 5) && !strcmp(argv[1], "readmmc")) {
buffer = (void *)simple_strtoul(argv[2], NULL, 16);
offset = simple_strtoul(argv[3], NULL, 10);
size = simple_strtoul(argv[4], NULL, 10);
ret = atf_read_mmc(offset, buffer, size);
} else if ((argc == 5) && !strcmp(argv[1], "readnor")) {
buffer = (void *)simple_strtoul(argv[2], NULL, 16);
offset = simple_strtoul(argv[3], NULL, 10);
size = simple_strtoul(argv[4], NULL, 10);
ret = atf_read_nor(offset, buffer, size);
} else if ((argc == 5) && !strcmp(argv[1], "writemmc")) {
buffer = (void *)simple_strtoul(argv[2], NULL, 16);
offset = simple_strtoul(argv[3], NULL, 10);
size = simple_strtoul(argv[4], NULL, 10);
ret = atf_write_mmc(offset, buffer, size);
} else if ((argc == 5) && !strcmp(argv[1], "writenor")) {
buffer = (void *)simple_strtoul(argv[2], NULL, 16);
offset = simple_strtoul(argv[3], NULL, 10);
size = simple_strtoul(argv[4], NULL, 10);
ret = atf_write_nor(offset, buffer, size);
} else if ((argc == 2) && !strcmp(argv[1], "part")) {
atf_print_part_table();
} else if ((argc == 4) && !strcmp(argv[1], "erasenor")) {
offset = simple_strtoul(argv[2], NULL, 10);
size = simple_strtoul(argv[3], NULL, 10);
ret = atf_erase_nor(offset, size);
} else if ((argc == 2) && !strcmp(argv[1], "envcount")) {
ret = atf_env_count();
printf("Number of environment strings: %zd\n", ret);
} else if ((argc == 3) && !strcmp(argv[1], "envstring")) {
index = simple_strtoul(argv[2], NULL, 10);
ret = atf_env_string(index, str);
if (ret > 0)
printf("Environment string %d: %s\n", index, str);
else
printf("Return code: %zd\n", ret);
} else if ((argc == 3) && !strcmp(argv[1], "dramsize")) {
node = simple_strtoul(argv[2], NULL, 10);
ret = atf_dram_size(node);
printf("DRAM size: %zd Mbytes\n", ret >> 20);
} else if ((argc == 2) && !strcmp(argv[1], "nodes")) {
ret = atf_node_count();
printf("Nodes count: %zd\n", ret);
} else if ((argc == 2) && !strcmp(argv[1], "ver")) {
atf_print_ver();
} else if ((argc == 2) && !strcmp(argv[1], "uid")) {
atf_print_uid();
} else {
return CMD_RET_USAGE;
}
return 0;
}
U_BOOT_CMD(
atf, 10, 1, do_atf,
"issue calls to ATF",
"\t readmmc addr offset size - read MMC card\n"
"\t readnor addr offset size - read NOR flash\n"
"\t writemmc addr offset size - write MMC card\n"
"\t writenor addr offset size - write NOR flash\n"
"\t erasenor offset size - erase NOR flash\n"
"\t nodes - number of nodes\n"
"\t dramsize node - size of DRAM attached to node\n"
"\t envcount - number of environment strings\n"
"\t envstring index - print the environment string\n"
"\t part - print MMC partition table\n"
"\t ver - print ATF call set versions\n"
);
#endif
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