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u-boot/drivers/net/pfe_eth/pfe_hw.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

998 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
*/
#include <net/pfe_eth/pfe_eth.h>
#include <net/pfe_eth/pfe/pfe_hw.h>
static struct pe_info pe[MAX_PE];
/*
* Initializes the PFE library.
* Must be called before using any of the library functions.
*/
void pfe_lib_init(void)
{
int pfe_pe_id;
for (pfe_pe_id = CLASS0_ID; pfe_pe_id <= CLASS_MAX_ID; pfe_pe_id++) {
pe[pfe_pe_id].dmem_base_addr =
(u32)CLASS_DMEM_BASE_ADDR(pfe_pe_id);
pe[pfe_pe_id].pmem_base_addr =
(u32)CLASS_IMEM_BASE_ADDR(pfe_pe_id);
pe[pfe_pe_id].pmem_size = (u32)CLASS_IMEM_SIZE;
pe[pfe_pe_id].mem_access_wdata =
(void *)CLASS_MEM_ACCESS_WDATA;
pe[pfe_pe_id].mem_access_addr = (void *)CLASS_MEM_ACCESS_ADDR;
pe[pfe_pe_id].mem_access_rdata = (void *)CLASS_MEM_ACCESS_RDATA;
}
for (pfe_pe_id = TMU0_ID; pfe_pe_id <= TMU_MAX_ID; pfe_pe_id++) {
if (pfe_pe_id == TMU2_ID)
continue;
pe[pfe_pe_id].dmem_base_addr =
(u32)TMU_DMEM_BASE_ADDR(pfe_pe_id - TMU0_ID);
pe[pfe_pe_id].pmem_base_addr =
(u32)TMU_IMEM_BASE_ADDR(pfe_pe_id - TMU0_ID);
pe[pfe_pe_id].pmem_size = (u32)TMU_IMEM_SIZE;
pe[pfe_pe_id].mem_access_wdata = (void *)TMU_MEM_ACCESS_WDATA;
pe[pfe_pe_id].mem_access_addr = (void *)TMU_MEM_ACCESS_ADDR;
pe[pfe_pe_id].mem_access_rdata = (void *)TMU_MEM_ACCESS_RDATA;
}
}
/*
* Writes a buffer to PE internal memory from the host
* through indirect access registers.
*
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] mem_access_addr DMEM destination address (must be 32bit
* aligned)
* @param[in] src Buffer source address
* @param[in] len Number of bytes to copy
*/
static void pe_mem_memcpy_to32(int id, u32 mem_access_addr, const void *src,
unsigned int len)
{
u32 offset = 0, val, addr;
unsigned int len32 = len >> 2;
int i;
addr = mem_access_addr | PE_MEM_ACCESS_WRITE |
PE_MEM_ACCESS_BYTE_ENABLE(0, 4);
for (i = 0; i < len32; i++, offset += 4, src += 4) {
val = *(u32 *)src;
writel(cpu_to_be32(val), pe[id].mem_access_wdata);
writel(addr + offset, pe[id].mem_access_addr);
}
len = (len & 0x3);
if (len) {
val = 0;
addr = (mem_access_addr | PE_MEM_ACCESS_WRITE |
PE_MEM_ACCESS_BYTE_ENABLE(0, len)) + offset;
for (i = 0; i < len; i++, src++)
val |= (*(u8 *)src) << (8 * i);
writel(cpu_to_be32(val), pe[id].mem_access_wdata);
writel(addr, pe[id].mem_access_addr);
}
}
/*
* Writes a buffer to PE internal data memory (DMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] dst DMEM destination address (must be 32bit
* aligned)
* @param[in] src Buffer source address
* @param[in] len Number of bytes to copy
*/
static void pe_dmem_memcpy_to32(int id, u32 dst, const void *src,
unsigned int len)
{
pe_mem_memcpy_to32(id, pe[id].dmem_base_addr | dst | PE_MEM_ACCESS_DMEM,
src, len);
}
/*
* Writes a buffer to PE internal program memory (PMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., TMU3_ID)
* @param[in] dst PMEM destination address (must be 32bit
* aligned)
* @param[in] src Buffer source address
* @param[in] len Number of bytes to copy
*/
static void pe_pmem_memcpy_to32(int id, u32 dst, const void *src,
unsigned int len)
{
pe_mem_memcpy_to32(id, pe[id].pmem_base_addr | (dst & (pe[id].pmem_size
- 1)) | PE_MEM_ACCESS_IMEM, src, len);
}
/*
* Reads PE internal program memory (IMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., TMU3_ID)
* @param[in] addr PMEM read address (must be aligned on size)
* @param[in] size Number of bytes to read (maximum 4, must not
* cross 32bit boundaries)
* @return the data read (in PE endianness, i.e BE).
*/
u32 pe_pmem_read(int id, u32 addr, u8 size)
{
u32 offset = addr & 0x3;
u32 mask = 0xffffffff >> ((4 - size) << 3);
u32 val;
addr = pe[id].pmem_base_addr | ((addr & ~0x3) & (pe[id].pmem_size - 1))
| PE_MEM_ACCESS_READ | PE_MEM_ACCESS_IMEM |
PE_MEM_ACCESS_BYTE_ENABLE(offset, size);
writel(addr, pe[id].mem_access_addr);
val = be32_to_cpu(readl(pe[id].mem_access_rdata));
return (val >> (offset << 3)) & mask;
}
/*
* Writes PE internal data memory (DMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] val Value to write (in PE endianness, i.e BE)
* @param[in] addr DMEM write address (must be aligned on size)
* @param[in] size Number of bytes to write (maximum 4, must not
* cross 32bit boundaries)
*/
void pe_dmem_write(int id, u32 val, u32 addr, u8 size)
{
u32 offset = addr & 0x3;
addr = pe[id].dmem_base_addr | (addr & ~0x3) | PE_MEM_ACCESS_WRITE |
PE_MEM_ACCESS_DMEM | PE_MEM_ACCESS_BYTE_ENABLE(offset, size);
/* Indirect access interface is byte swapping data being written */
writel(cpu_to_be32(val << (offset << 3)), pe[id].mem_access_wdata);
writel(addr, pe[id].mem_access_addr);
}
/*
* Reads PE internal data memory (DMEM) from the host
* through indirect access registers.
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] addr DMEM read address (must be aligned on size)
* @param[in] size Number of bytes to read (maximum 4, must not
* cross 32bit boundaries)
* @return the data read (in PE endianness, i.e BE).
*/
u32 pe_dmem_read(int id, u32 addr, u8 size)
{
u32 offset = addr & 0x3;
u32 mask = 0xffffffff >> ((4 - size) << 3);
u32 val;
addr = pe[id].dmem_base_addr | (addr & ~0x3) | PE_MEM_ACCESS_READ |
PE_MEM_ACCESS_DMEM | PE_MEM_ACCESS_BYTE_ENABLE(offset, size);
writel(addr, pe[id].mem_access_addr);
/* Indirect access interface is byte swapping data being read */
val = be32_to_cpu(readl(pe[id].mem_access_rdata));
return (val >> (offset << 3)) & mask;
}
/*
* This function is used to write to CLASS internal bus peripherals (ccu,
* pe-lem) from the host
* through indirect access registers.
* @param[in] val value to write
* @param[in] addr Address to write to (must be aligned on size)
* @param[in] size Number of bytes to write (1, 2 or 4)
*
*/
static void class_bus_write(u32 val, u32 addr, u8 size)
{
u32 offset = addr & 0x3;
writel((addr & CLASS_BUS_ACCESS_BASE_MASK), CLASS_BUS_ACCESS_BASE);
addr = (addr & ~CLASS_BUS_ACCESS_BASE_MASK) | PE_MEM_ACCESS_WRITE |
(size << 24);
writel(cpu_to_be32(val << (offset << 3)), CLASS_BUS_ACCESS_WDATA);
writel(addr, CLASS_BUS_ACCESS_ADDR);
}
/*
* Reads from CLASS internal bus peripherals (ccu, pe-lem) from the host
* through indirect access registers.
* @param[in] addr Address to read from (must be aligned on size)
* @param[in] size Number of bytes to read (1, 2 or 4)
* @return the read data
*/
static u32 class_bus_read(u32 addr, u8 size)
{
u32 offset = addr & 0x3;
u32 mask = 0xffffffff >> ((4 - size) << 3);
u32 val;
writel((addr & CLASS_BUS_ACCESS_BASE_MASK), CLASS_BUS_ACCESS_BASE);
addr = (addr & ~CLASS_BUS_ACCESS_BASE_MASK) | (size << 24);
writel(addr, CLASS_BUS_ACCESS_ADDR);
val = be32_to_cpu(readl(CLASS_BUS_ACCESS_RDATA));
return (val >> (offset << 3)) & mask;
}
/*
* Writes data to the cluster memory (PE_LMEM)
* @param[in] dst PE LMEM destination address (must be 32bit aligned)
* @param[in] src Buffer source address
* @param[in] len Number of bytes to copy
*/
static void class_pe_lmem_memcpy_to32(u32 dst, const void *src,
unsigned int len)
{
u32 len32 = len >> 2;
int i;
for (i = 0; i < len32; i++, src += 4, dst += 4)
class_bus_write(*(u32 *)src, dst, 4);
if (len & 0x2) {
class_bus_write(*(u16 *)src, dst, 2);
src += 2;
dst += 2;
}
if (len & 0x1) {
class_bus_write(*(u8 *)src, dst, 1);
src++;
dst++;
}
}
/*
* Writes value to the cluster memory (PE_LMEM)
* @param[in] dst PE LMEM destination address (must be 32bit aligned)
* @param[in] val Value to write
* @param[in] len Number of bytes to write
*/
static void class_pe_lmem_memset(u32 dst, int val, unsigned int len)
{
u32 len32 = len >> 2;
int i;
val = val | (val << 8) | (val << 16) | (val << 24);
for (i = 0; i < len32; i++, dst += 4)
class_bus_write(val, dst, 4);
if (len & 0x2) {
class_bus_write(val, dst, 2);
dst += 2;
}
if (len & 0x1) {
class_bus_write(val, dst, 1);
dst++;
}
}
/*
* Reads data from the cluster memory (PE_LMEM)
* @param[out] dst pointer to the source buffer data are copied to
* @param[in] len length in bytes of the amount of data to read
* from cluster memory
* @param[in] offset offset in bytes in the cluster memory where data are
* read from
*/
void pe_lmem_read(u32 *dst, u32 len, u32 offset)
{
u32 len32 = len >> 2;
int i = 0;
for (i = 0; i < len32; dst++, i++, offset += 4)
*dst = class_bus_read(PE_LMEM_BASE_ADDR + offset, 4);
if (len & 0x03)
*dst = class_bus_read(PE_LMEM_BASE_ADDR + offset, (len & 0x03));
}
/*
* Writes data to the cluster memory (PE_LMEM)
* @param[in] src pointer to the source buffer data are copied from
* @param[in] len length in bytes of the amount of data to write to the
* cluster memory
* @param[in] offset offset in bytes in the cluster memory where data are
* written to
*/
void pe_lmem_write(u32 *src, u32 len, u32 offset)
{
u32 len32 = len >> 2;
int i = 0;
for (i = 0; i < len32; src++, i++, offset += 4)
class_bus_write(*src, PE_LMEM_BASE_ADDR + offset, 4);
if (len & 0x03)
class_bus_write(*src, PE_LMEM_BASE_ADDR + offset, (len &
0x03));
}
/*
* Loads an elf section into pmem
* Code needs to be at least 16bit aligned and only PROGBITS sections are
* supported
*
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID, ...,
* TMU3_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
static int pe_load_pmem_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 offset = be32_to_cpu(shdr->sh_offset);
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
u32 type = be32_to_cpu(shdr->sh_type);
if (((unsigned long)(data + offset) & 0x3) != (addr & 0x3)) {
printf(
"%s: load address(%x) and elf file address(%lx) don't have the same alignment\n",
__func__, addr, (unsigned long)data + offset);
return -1;
}
if (addr & 0x1) {
printf("%s: load address(%x) is not 16bit aligned\n",
__func__, addr);
return -1;
}
if (size & 0x1) {
printf("%s: load size(%x) is not 16bit aligned\n", __func__,
size);
return -1;
}
debug("pmem pe%d @%x len %d\n", id, addr, size);
switch (type) {
case SHT_PROGBITS:
pe_pmem_memcpy_to32(id, addr, data + offset, size);
break;
default:
printf("%s: unsupported section type(%x)\n", __func__, type);
return -1;
}
return 0;
}
/*
* Loads an elf section into dmem
* Data needs to be at least 32bit aligned, NOBITS sections are correctly
* initialized to 0
*
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
static int pe_load_dmem_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 offset = be32_to_cpu(shdr->sh_offset);
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
u32 type = be32_to_cpu(shdr->sh_type);
u32 size32 = size >> 2;
int i;
if (((unsigned long)(data + offset) & 0x3) != (addr & 0x3)) {
printf(
"%s: load address(%x) and elf file address(%lx) don't have the same alignment\n",
__func__, addr, (unsigned long)data + offset);
return -1;
}
if (addr & 0x3) {
printf("%s: load address(%x) is not 32bit aligned\n",
__func__, addr);
return -1;
}
switch (type) {
case SHT_PROGBITS:
debug("dmem pe%d @%x len %d\n", id, addr, size);
pe_dmem_memcpy_to32(id, addr, data + offset, size);
break;
case SHT_NOBITS:
debug("dmem zero pe%d @%x len %d\n", id, addr, size);
for (i = 0; i < size32; i++, addr += 4)
pe_dmem_write(id, 0, addr, 4);
if (size & 0x3)
pe_dmem_write(id, 0, addr, size & 0x3);
break;
default:
printf("%s: unsupported section type(%x)\n", __func__, type);
return -1;
}
return 0;
}
/*
* Loads an elf section into DDR
* Data needs to be at least 32bit aligned, NOBITS sections are correctly
* initialized to 0
*
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
static int pe_load_ddr_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 offset = be32_to_cpu(shdr->sh_offset);
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
u32 type = be32_to_cpu(shdr->sh_type);
u32 flags = be32_to_cpu(shdr->sh_flags);
switch (type) {
case SHT_PROGBITS:
debug("ddr pe%d @%x len %d\n", id, addr, size);
if (flags & SHF_EXECINSTR) {
if (id <= CLASS_MAX_ID) {
/* DO the loading only once in DDR */
if (id == CLASS0_ID) {
debug(
"%s: load address(%x) and elf file address(%lx) rcvd\n"
, __func__, addr,
(unsigned long)data + offset);
if (((unsigned long)(data + offset)
& 0x3) != (addr & 0x3)) {
printf(
"%s: load address(%x) and elf file address(%lx) don't have the same alignment\n",
__func__, addr,
(unsigned long)data +
offset);
return -1;
}
if (addr & 0x1) {
printf(
"%s: load address(%x) is not 16bit aligned\n"
, __func__, addr);
return -1;
}
if (size & 0x1) {
printf(
"%s: load length(%x) is not 16bit aligned\n"
, __func__, size);
return -1;
}
memcpy((void *)DDR_PFE_TO_VIRT(addr),
data + offset, size);
}
} else {
printf(
"%s: unsupported ddr section type(%x) for PE(%d)\n"
, __func__, type, id);
return -1;
}
} else {
memcpy((void *)DDR_PFE_TO_VIRT(addr), data + offset,
size);
}
break;
case SHT_NOBITS:
debug("ddr zero pe%d @%x len %d\n", id, addr, size);
memset((void *)DDR_PFE_TO_VIRT(addr), 0, size);
break;
default:
printf("%s: unsupported section type(%x)\n", __func__, type);
return -1;
}
return 0;
}
/*
* Loads an elf section into pe lmem
* Data needs to be at least 32bit aligned, NOBITS sections are correctly
* initialized to 0
*
* @param[in] id PE identification (CLASS0_ID,..., CLASS5_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
static int pe_load_pe_lmem_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 offset = be32_to_cpu(shdr->sh_offset);
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
u32 type = be32_to_cpu(shdr->sh_type);
if (id > CLASS_MAX_ID) {
printf("%s: unsupported pe-lmem section type(%x) for PE(%d)\n",
__func__, type, id);
return -1;
}
if (((unsigned long)(data + offset) & 0x3) != (addr & 0x3)) {
printf(
"%s: load address(%x) and elf file address(%lx) don't have the same alignment\n",
__func__, addr, (unsigned long)data + offset);
return -1;
}
if (addr & 0x3) {
printf("%s: load address(%x) is not 32bit aligned\n",
__func__, addr);
return -1;
}
debug("lmem pe%d @%x len %d\n", id, addr, size);
switch (type) {
case SHT_PROGBITS:
class_pe_lmem_memcpy_to32(addr, data + offset, size);
break;
case SHT_NOBITS:
class_pe_lmem_memset(addr, 0, size);
break;
default:
printf("%s: unsupported section type(%x)\n", __func__, type);
return -1;
}
return 0;
}
/*
* Loads an elf section into a PE
* For now only supports loading a section to dmem (all PE's), pmem (class and
* tmu PE's), DDDR (util PE code)
* @param[in] id PE identification (CLASS0_ID, ..., TMU0_ID,
* ..., UTIL_ID)
* @param[in] data pointer to the elf firmware
* @param[in] shdr pointer to the elf section header
*/
int pe_load_elf_section(int id, const void *data, Elf32_Shdr *shdr)
{
u32 addr = be32_to_cpu(shdr->sh_addr);
u32 size = be32_to_cpu(shdr->sh_size);
if (IS_DMEM(addr, size))
return pe_load_dmem_section(id, data, shdr);
else if (IS_PMEM(addr, size))
return pe_load_pmem_section(id, data, shdr);
else if (IS_PFE_LMEM(addr, size))
return 0;
else if (IS_PHYS_DDR(addr, size))
return pe_load_ddr_section(id, data, shdr);
else if (IS_PE_LMEM(addr, size))
return pe_load_pe_lmem_section(id, data, shdr);
printf("%s: unsupported memory range(%x)\n", __func__, addr);
return 0;
}
/**************************** BMU ***************************/
/*
* Resets a BMU block.
* @param[in] base BMU block base address
*/
static inline void bmu_reset(void *base)
{
writel(CORE_SW_RESET, base + BMU_CTRL);
/* Wait for self clear */
while (readl(base + BMU_CTRL) & CORE_SW_RESET)
;
}
/*
* Enabled a BMU block.
* @param[in] base BMU block base address
*/
void bmu_enable(void *base)
{
writel(CORE_ENABLE, base + BMU_CTRL);
}
/*
* Disables a BMU block.
* @param[in] base BMU block base address
*/
static inline void bmu_disable(void *base)
{
writel(CORE_DISABLE, base + BMU_CTRL);
}
/*
* Sets the configuration of a BMU block.
* @param[in] base BMU block base address
* @param[in] cfg BMU configuration
*/
static inline void bmu_set_config(void *base, struct bmu_cfg *cfg)
{
writel(cfg->baseaddr, base + BMU_UCAST_BASE_ADDR);
writel(cfg->count & 0xffff, base + BMU_UCAST_CONFIG);
writel(cfg->size & 0xffff, base + BMU_BUF_SIZE);
/* Interrupts are never used */
writel(0x0, base + BMU_INT_ENABLE);
}
/*
* Initializes a BMU block.
* @param[in] base BMU block base address
* @param[in] cfg BMU configuration
*/
void bmu_init(void *base, struct bmu_cfg *cfg)
{
bmu_disable(base);
bmu_set_config(base, cfg);
bmu_reset(base);
}
/**************************** GPI ***************************/
/*
* Resets a GPI block.
* @param[in] base GPI base address
*/
static inline void gpi_reset(void *base)
{
writel(CORE_SW_RESET, base + GPI_CTRL);
}
/*
* Enables a GPI block.
* @param[in] base GPI base address
*/
void gpi_enable(void *base)
{
writel(CORE_ENABLE, base + GPI_CTRL);
}
/*
* Disables a GPI block.
* @param[in] base GPI base address
*/
void gpi_disable(void *base)
{
writel(CORE_DISABLE, base + GPI_CTRL);
}
/*
* Sets the configuration of a GPI block.
* @param[in] base GPI base address
* @param[in] cfg GPI configuration
*/
static inline void gpi_set_config(void *base, struct gpi_cfg *cfg)
{
writel(CBUS_VIRT_TO_PFE(BMU1_BASE_ADDR + BMU_ALLOC_CTRL), base
+ GPI_LMEM_ALLOC_ADDR);
writel(CBUS_VIRT_TO_PFE(BMU1_BASE_ADDR + BMU_FREE_CTRL), base
+ GPI_LMEM_FREE_ADDR);
writel(CBUS_VIRT_TO_PFE(BMU2_BASE_ADDR + BMU_ALLOC_CTRL), base
+ GPI_DDR_ALLOC_ADDR);
writel(CBUS_VIRT_TO_PFE(BMU2_BASE_ADDR + BMU_FREE_CTRL), base
+ GPI_DDR_FREE_ADDR);
writel(CBUS_VIRT_TO_PFE(CLASS_INQ_PKTPTR), base + GPI_CLASS_ADDR);
writel(DDR_HDR_SIZE, base + GPI_DDR_DATA_OFFSET);
writel(LMEM_HDR_SIZE, base + GPI_LMEM_DATA_OFFSET);
writel(0, base + GPI_LMEM_SEC_BUF_DATA_OFFSET);
writel(0, base + GPI_DDR_SEC_BUF_DATA_OFFSET);
writel((DDR_HDR_SIZE << 16) | LMEM_HDR_SIZE, base + GPI_HDR_SIZE);
writel((DDR_BUF_SIZE << 16) | LMEM_BUF_SIZE, base + GPI_BUF_SIZE);
writel(((cfg->lmem_rtry_cnt << 16) | (GPI_DDR_BUF_EN << 1) |
GPI_LMEM_BUF_EN), base + GPI_RX_CONFIG);
writel(cfg->tmlf_txthres, base + GPI_TMLF_TX);
writel(cfg->aseq_len, base + GPI_DTX_ASEQ);
/*Make GPI AXI transactions non-bufferable */
writel(0x1, base + GPI_AXI_CTRL);
}
/*
* Initializes a GPI block.
* @param[in] base GPI base address
* @param[in] cfg GPI configuration
*/
void gpi_init(void *base, struct gpi_cfg *cfg)
{
gpi_reset(base);
gpi_disable(base);
gpi_set_config(base, cfg);
}
/**************************** CLASSIFIER ***************************/
/*
* Resets CLASSIFIER block.
*/
static inline void class_reset(void)
{
writel(CORE_SW_RESET, CLASS_TX_CTRL);
}
/*
* Enables all CLASS-PE's cores.
*/
void class_enable(void)
{
writel(CORE_ENABLE, CLASS_TX_CTRL);
}
/*
* Disables all CLASS-PE's cores.
*/
void class_disable(void)
{
writel(CORE_DISABLE, CLASS_TX_CTRL);
}
/*
* Sets the configuration of the CLASSIFIER block.
* @param[in] cfg CLASSIFIER configuration
*/
static inline void class_set_config(struct class_cfg *cfg)
{
if (PLL_CLK_EN == 0) {
/* Clock ratio: for 1:1 the value is 0 */
writel(0x0, CLASS_PE_SYS_CLK_RATIO);
} else {
/* Clock ratio: for 1:2 the value is 1 */
writel(0x1, CLASS_PE_SYS_CLK_RATIO);
}
writel((DDR_HDR_SIZE << 16) | LMEM_HDR_SIZE, CLASS_HDR_SIZE);
writel(LMEM_BUF_SIZE, CLASS_LMEM_BUF_SIZE);
writel(CLASS_ROUTE_ENTRY_SIZE(CLASS_ROUTE_SIZE) |
CLASS_ROUTE_HASH_SIZE(cfg->route_table_hash_bits),
CLASS_ROUTE_HASH_ENTRY_SIZE);
writel(HASH_CRC_PORT_IP | QB2BUS_LE, CLASS_ROUTE_MULTI);
writel(cfg->route_table_baseaddr, CLASS_ROUTE_TABLE_BASE);
memset((void *)DDR_PFE_TO_VIRT(cfg->route_table_baseaddr), 0,
ROUTE_TABLE_SIZE);
writel(CLASS_PE0_RO_DM_ADDR0_VAL, CLASS_PE0_RO_DM_ADDR0);
writel(CLASS_PE0_RO_DM_ADDR1_VAL, CLASS_PE0_RO_DM_ADDR1);
writel(CLASS_PE0_QB_DM_ADDR0_VAL, CLASS_PE0_QB_DM_ADDR0);
writel(CLASS_PE0_QB_DM_ADDR1_VAL, CLASS_PE0_QB_DM_ADDR1);
writel(CBUS_VIRT_TO_PFE(TMU_PHY_INQ_PKTPTR), CLASS_TM_INQ_ADDR);
writel(23, CLASS_AFULL_THRES);
writel(23, CLASS_TSQ_FIFO_THRES);
writel(24, CLASS_MAX_BUF_CNT);
writel(24, CLASS_TSQ_MAX_CNT);
/*Make Class AXI transactions non-bufferable */
writel(0x1, CLASS_AXI_CTRL);
/*Make Util AXI transactions non-bufferable */
/*Util is disabled in U-boot, do it from here */
writel(0x1, UTIL_AXI_CTRL);
}
/*
* Initializes CLASSIFIER block.
* @param[in] cfg CLASSIFIER configuration
*/
void class_init(struct class_cfg *cfg)
{
class_reset();
class_disable();
class_set_config(cfg);
}
/**************************** TMU ***************************/
/*
* Enables TMU-PE cores.
* @param[in] pe_mask TMU PE mask
*/
void tmu_enable(u32 pe_mask)
{
writel(readl(TMU_TX_CTRL) | (pe_mask & 0xF), TMU_TX_CTRL);
}
/*
* Disables TMU cores.
* @param[in] pe_mask TMU PE mask
*/
void tmu_disable(u32 pe_mask)
{
writel(readl(TMU_TX_CTRL) & ~(pe_mask & 0xF), TMU_TX_CTRL);
}
/*
* Initializes TMU block.
* @param[in] cfg TMU configuration
*/
void tmu_init(struct tmu_cfg *cfg)
{
int q, phyno;
/* keep in soft reset */
writel(SW_RESET, TMU_CTRL);
/*Make Class AXI transactions non-bufferable */
writel(0x1, TMU_AXI_CTRL);
/* enable EMAC PHY ports */
writel(0x3, TMU_SYS_GENERIC_CONTROL);
writel(750, TMU_INQ_WATERMARK);
writel(CBUS_VIRT_TO_PFE(EGPI1_BASE_ADDR + GPI_INQ_PKTPTR),
TMU_PHY0_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(EGPI2_BASE_ADDR + GPI_INQ_PKTPTR),
TMU_PHY1_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(HGPI_BASE_ADDR + GPI_INQ_PKTPTR),
TMU_PHY3_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(HIF_NOCPY_RX_INQ0_PKTPTR), TMU_PHY4_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(UTIL_INQ_PKTPTR), TMU_PHY5_INQ_ADDR);
writel(CBUS_VIRT_TO_PFE(BMU2_BASE_ADDR + BMU_FREE_CTRL),
TMU_BMU_INQ_ADDR);
/* enabling all 10 schedulers [9:0] of each TDQ */
writel(0x3FF, TMU_TDQ0_SCH_CTRL);
writel(0x3FF, TMU_TDQ1_SCH_CTRL);
writel(0x3FF, TMU_TDQ3_SCH_CTRL);
if (PLL_CLK_EN == 0) {
/* Clock ratio: for 1:1 the value is 0 */
writel(0x0, TMU_PE_SYS_CLK_RATIO);
} else {
/* Clock ratio: for 1:2 the value is 1 */
writel(0x1, TMU_PE_SYS_CLK_RATIO);
}
/* Extra packet pointers will be stored from this address onwards */
debug("TMU_LLM_BASE_ADDR %x\n", cfg->llm_base_addr);
writel(cfg->llm_base_addr, TMU_LLM_BASE_ADDR);
debug("TMU_LLM_QUE_LEN %x\n", cfg->llm_queue_len);
writel(cfg->llm_queue_len, TMU_LLM_QUE_LEN);
writel(5, TMU_TDQ_IIFG_CFG);
writel(DDR_BUF_SIZE, TMU_BMU_BUF_SIZE);
writel(0x0, TMU_CTRL);
/* MEM init */
writel(MEM_INIT, TMU_CTRL);
while (!(readl(TMU_CTRL) & MEM_INIT_DONE))
;
/* LLM init */
writel(LLM_INIT, TMU_CTRL);
while (!(readl(TMU_CTRL) & LLM_INIT_DONE))
;
/* set up each queue for tail drop */
for (phyno = 0; phyno < 4; phyno++) {
if (phyno == 2)
continue;
for (q = 0; q < 16; q++) {
u32 qmax;
writel((phyno << 8) | q, TMU_TEQ_CTRL);
writel(BIT(22), TMU_TEQ_QCFG);
if (phyno == 3)
qmax = DEFAULT_TMU3_QDEPTH;
else
qmax = (q == 0) ? DEFAULT_Q0_QDEPTH :
DEFAULT_MAX_QDEPTH;
writel(qmax << 18, TMU_TEQ_HW_PROB_CFG2);
writel(qmax >> 14, TMU_TEQ_HW_PROB_CFG3);
}
}
writel(0x05, TMU_TEQ_DISABLE_DROPCHK);
writel(0, TMU_CTRL);
}
/**************************** HIF ***************************/
/*
* Enable hif tx DMA and interrupt
*/
void hif_tx_enable(void)
{
writel(HIF_CTRL_DMA_EN, HIF_TX_CTRL);
}
/*
* Disable hif tx DMA and interrupt
*/
void hif_tx_disable(void)
{
u32 hif_int;
writel(0, HIF_TX_CTRL);
hif_int = readl(HIF_INT_ENABLE);
hif_int &= HIF_TXPKT_INT_EN;
writel(hif_int, HIF_INT_ENABLE);
}
/*
* Enable hif rx DMA and interrupt
*/
void hif_rx_enable(void)
{
writel((HIF_CTRL_DMA_EN | HIF_CTRL_BDP_CH_START_WSTB), HIF_RX_CTRL);
}
/*
* Disable hif rx DMA and interrupt
*/
void hif_rx_disable(void)
{
u32 hif_int;
writel(0, HIF_RX_CTRL);
hif_int = readl(HIF_INT_ENABLE);
hif_int &= HIF_RXPKT_INT_EN;
writel(hif_int, HIF_INT_ENABLE);
}
/*
* Initializes HIF copy block.
*/
void hif_init(void)
{
/* Initialize HIF registers */
writel(HIF_RX_POLL_CTRL_CYCLE << 16 | HIF_TX_POLL_CTRL_CYCLE,
HIF_POLL_CTRL);
/* Make HIF AXI transactions non-bufferable */
writel(0x1, HIF_AXI_CTRL);
}
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