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hw: m25p80: add tests for BP and TB bit write protect 

Signed-off-by: Iris Chen <irischenlj@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220627185234.1911337-3-irischenlj@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Iris Chen 2022-07-14 16:24:38 +02:00 committed by Cédric Le Goater
parent 2113a12897
commit 8abf9ba472
1 changed files with 111 additions and 0 deletions
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111
tests/qtest/aspeed_smc-test.c
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@ -192,6 +192,24 @@ static void read_page_mem(uint32_t addr, uint32_t *page)
}
}
static void write_page_mem(uint32_t addr, uint32_t write_value)
{
spi_ctrl_setmode(CTRL_WRITEMODE, PP);
for (int i = 0; i < FLASH_PAGE_SIZE / 4; i++) {
writel(ASPEED_FLASH_BASE + addr + i * 4, write_value);
}
}
static void assert_page_mem(uint32_t addr, uint32_t expected_value)
{
uint32_t page[FLASH_PAGE_SIZE / 4];
read_page_mem(addr, page);
for (int i = 0; i < FLASH_PAGE_SIZE / 4; i++) {
g_assert_cmphex(page[i], ==, expected_value);
}
}
static void test_erase_sector(void)
{
uint32_t some_page_addr = 0x600 * FLASH_PAGE_SIZE;
@ -501,6 +519,95 @@ static void test_status_reg_write_protection(void)
flash_reset();
}
static void test_write_block_protect(void)
{
uint32_t sector_size = 65536;
uint32_t n_sectors = 512;
spi_ce_ctrl(1 << CRTL_EXTENDED0);
spi_conf(CONF_ENABLE_W0);
uint32_t bp_bits = 0b0;
for (int i = 0; i < 16; i++) {
bp_bits = ((i & 0b1000) << 3) | ((i & 0b0111) << 2);
spi_ctrl_start_user();
writeb(ASPEED_FLASH_BASE, WREN);
writeb(ASPEED_FLASH_BASE, BULK_ERASE);
writeb(ASPEED_FLASH_BASE, WREN);
writeb(ASPEED_FLASH_BASE, WRSR);
writeb(ASPEED_FLASH_BASE, bp_bits);
writeb(ASPEED_FLASH_BASE, EN_4BYTE_ADDR);
writeb(ASPEED_FLASH_BASE, WREN);
spi_ctrl_stop_user();
uint32_t num_protected_sectors = i ? MIN(1 << (i - 1), n_sectors) : 0;
uint32_t protection_start = n_sectors - num_protected_sectors;
uint32_t protection_end = n_sectors;
for (int sector = 0; sector < n_sectors; sector++) {
uint32_t addr = sector * sector_size;
assert_page_mem(addr, 0xffffffff);
write_page_mem(addr, make_be32(0xabcdef12));
uint32_t expected_value = protection_start <= sector
&& sector < protection_end
? 0xffffffff : 0xabcdef12;
assert_page_mem(addr, expected_value);
}
}
flash_reset();
}
static void test_write_block_protect_bottom_bit(void)
{
uint32_t sector_size = 65536;
uint32_t n_sectors = 512;
spi_ce_ctrl(1 << CRTL_EXTENDED0);
spi_conf(CONF_ENABLE_W0);
/* top bottom bit is enabled */
uint32_t bp_bits = 0b00100 << 3;
for (int i = 0; i < 16; i++) {
bp_bits = (((i & 0b1000) | 0b0100) << 3) | ((i & 0b0111) << 2);
spi_ctrl_start_user();
writeb(ASPEED_FLASH_BASE, WREN);
writeb(ASPEED_FLASH_BASE, BULK_ERASE);
writeb(ASPEED_FLASH_BASE, WREN);
writeb(ASPEED_FLASH_BASE, WRSR);
writeb(ASPEED_FLASH_BASE, bp_bits);
writeb(ASPEED_FLASH_BASE, EN_4BYTE_ADDR);
writeb(ASPEED_FLASH_BASE, WREN);
spi_ctrl_stop_user();
uint32_t num_protected_sectors = i ? MIN(1 << (i - 1), n_sectors) : 0;
uint32_t protection_start = 0;
uint32_t protection_end = num_protected_sectors;
for (int sector = 0; sector < n_sectors; sector++) {
uint32_t addr = sector * sector_size;
assert_page_mem(addr, 0xffffffff);
write_page_mem(addr, make_be32(0xabcdef12));
uint32_t expected_value = protection_start <= sector
&& sector < protection_end
? 0xffffffff : 0xabcdef12;
assert_page_mem(addr, expected_value);
}
}
flash_reset();
}
static char tmp_path[] = "/tmp/qtest.m25p80.XXXXXX";
int main(int argc, char **argv)
@ -529,6 +636,10 @@ int main(int argc, char **argv)
qtest_add_func("/ast2400/smc/read_status_reg", test_read_status_reg);
qtest_add_func("/ast2400/smc/status_reg_write_protection",
test_status_reg_write_protection);
qtest_add_func("/ast2400/smc/write_block_protect",
test_write_block_protect);
qtest_add_func("/ast2400/smc/write_block_protect_bottom_bit",
test_write_block_protect_bottom_bit);
flash_reset();
ret = g_test_run();