From b8015c9579d88bb7c5f0637c1bac836ec71bda1d Mon Sep 17 00:00:00 2001 From: Uros Majstorovic Date: Thu, 13 Feb 2025 20:53:49 +0100 Subject: moved flash driver back to dev --- fw/fe310/eos/dev/drv/flash.c | 162 ------------------------------------------- 1 file changed, 162 deletions(-) delete mode 100644 fw/fe310/eos/dev/drv/flash.c (limited to 'fw/fe310/eos/dev/drv/flash.c') diff --git a/fw/fe310/eos/dev/drv/flash.c b/fw/fe310/eos/dev/drv/flash.c deleted file mode 100644 index 4f017b3..0000000 --- a/fw/fe310/eos/dev/drv/flash.c +++ /dev/null @@ -1,162 +0,0 @@ -#include -#include - -#include "encoding.h" -#include "platform.h" - -#include "eos.h" -#include "soc/timer.h" - -#include "flash.h" - -#define IDLE_TICKS 10 - -__attribute__ ((section (".itim.flash"))) -static void send(uint8_t data) { - while (SPI0_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); - SPI0_REG(SPI_REG_TXFIFO) = data; -} - -__attribute__ ((section (".itim.flash"))) -static uint8_t xfer(uint8_t data) { - volatile uint32_t x = 0; - - send(data); - while ((x = SPI0_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY); - return x; -} - -void eos_flash_init(void) { - SPI0_REG(SPI_REG_FMT) |= SPI_FMT_DIR(SPI_DIR_TX); - SPI0_REG(SPI_REG_TXCTRL) = SPI_TXWM(1); - eos_flash_norm(); -} - -__attribute__ ((section (".itim.flash"))) -void eos_flash_norm(void) { - volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME); - uint32_t mtime0; - - clear_csr(mstatus, MSTATUS_MIE); - SPI0_REG(SPI_REG_FCTRL) = 0; - - SPI0_REG(SPI_REG_SCKDIV) = 3; - if (SPI0_REG(SPI_REG_FMT) & SPI_FMT_PROTO(SPI_PROTO_Q)) { - send(EOS_FLASH_QPIDI); - while (!(SPI0_REG(SPI_REG_IP) & SPI_IP_TXWM)); - } - - SPI0_REG(SPI_REG_FMT) = \ - SPI_FMT_PROTO(SPI_PROTO_S) | - SPI_FMT_ENDIAN(SPI_ENDIAN_MSB) | - SPI_FMT_DIR(SPI_DIR_TX) | - SPI_FMT_LEN(8); - - SPI0_REG(SPI_REG_FFMT) = - SPI_INSN_CMD_EN | - SPI_INSN_ADDR_LEN(3) | - SPI_INSN_PAD_CNT(0) | - SPI_INSN_CMD_PROTO(SPI_PROTO_S) | - SPI_INSN_ADDR_PROTO(SPI_PROTO_S) | - SPI_INSN_DATA_PROTO(SPI_PROTO_S) | - SPI_INSN_CMD_CODE(EOS_FLASH_NORD) | - SPI_INSN_PAD_CODE(0x00); - - mtime0 = *mtime; - while ((*mtime - mtime0) < IDLE_TICKS); - - SPI0_REG(SPI_REG_FCTRL) = SPI_FCTRL_EN; - set_csr(mstatus, MSTATUS_MIE); -} - -__attribute__ ((section (".itim.flash"))) -void eos_flash_fast(void) { - volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME); - uint32_t mtime0; - - clear_csr(mstatus, MSTATUS_MIE); - SPI0_REG(SPI_REG_FCTRL) = 0; - - SPI0_REG(SPI_REG_SCKDIV) = 2; - if (!(SPI0_REG(SPI_REG_FMT) & SPI_FMT_PROTO(SPI_PROTO_Q))) { - send(EOS_FLASH_QPIEN); - while (!(SPI0_REG(SPI_REG_IP) & SPI_IP_TXWM)); - } - - SPI0_REG(SPI_REG_FMT) = \ - SPI_FMT_PROTO(SPI_PROTO_Q) | - SPI_FMT_ENDIAN(SPI_ENDIAN_MSB) | - SPI_FMT_DIR(SPI_DIR_TX) | - SPI_FMT_LEN(8); - - SPI0_REG(SPI_REG_FFMT) = - SPI_INSN_CMD_EN | - SPI_INSN_ADDR_LEN(3) | - SPI_INSN_PAD_CNT(6) | - SPI_INSN_CMD_PROTO(SPI_PROTO_Q) | - SPI_INSN_ADDR_PROTO(SPI_PROTO_Q) | - SPI_INSN_DATA_PROTO(SPI_PROTO_Q) | - SPI_INSN_CMD_CODE(EOS_FLASH_FRD) | - SPI_INSN_PAD_CODE(0x00); - - mtime0 = *mtime; - while ((*mtime - mtime0) < IDLE_TICKS); - - SPI0_REG(SPI_REG_FCTRL) = SPI_FCTRL_EN; - set_csr(mstatus, MSTATUS_MIE); -} - -__attribute__ ((section (".itim.flash"))) -void eos_flash_wip(void) { - uint8_t status; - - do { - SPI0_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD; - xfer(EOS_FLASH_RDSR); - status = xfer(0); - SPI0_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO; - } while (status & EOS_FLASH_WIP); -} - -__attribute__ ((section (".itim.flash"))) -void eos_flash_wren(void) { - uint8_t status; - - xfer(EOS_FLASH_WREN); -#if 0 - do { - SPI0_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD; - xfer(EOS_FLASH_RDSR); - status = xfer(0); - SPI0_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO; - } while (!(status & EOS_FLASH_WEL)); -#endif -} - -__attribute__ ((section (".itim.flash"))) -void eos_flash_ser(uint32_t addr) { - SPI0_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD; - xfer(EOS_FLASH_SER); - xfer(addr >> 16); - xfer(addr >> 8); - xfer(addr); - SPI0_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO; -} - -__attribute__ ((section (".itim.flash"))) -void eos_flash_pp(uint32_t addr, uint8_t *buf) { - int i; - - SPI0_REG(SPI_REG_FMT) |= SPI_FMT_DIR(SPI_DIR_TX); - SPI0_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD; - send(EOS_FLASH_PP); - send(addr >> 16); - send(addr >> 8); - send(addr); - for (i=0; i<256; i++) { - send(buf[i]); - } - while (!(SPI0_REG(SPI_REG_IP) & SPI_IP_TXWM)); - SPI0_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO; - SPI0_REG(SPI_REG_FMT) &= ~SPI_FMT_DIR(SPI_DIR_TX); -} -- cgit v1.2.3