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stm32f3: provide correct ahb frequency

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This commit is contained in:
Yiyu Zhu 2016-02-16 18:24:03 -08:00 committed by Karl Palsson
parent 86d20ef00c
commit 770878e7b4
1 changed files with 4 additions and 0 deletions
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4
lib/stm32/f3/rcc.c
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@ -52,6 +52,7 @@ const struct rcc_clock_scale rcc_hsi_8mhz[RCC_CLOCK_END] = {
.ppre1 = RCC_CFGR_PPRE1_DIV_2, .ppre1 = RCC_CFGR_PPRE1_DIV_2,
.ppre2 = RCC_CFGR_PPRE2_DIV_NONE, .ppre2 = RCC_CFGR_PPRE2_DIV_NONE,
.flash_config = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY_1WS, .flash_config = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY_1WS,
.ahb_frequency = 44000000,
.apb1_frequency = 22000000, .apb1_frequency = 22000000,
.apb2_frequency = 44000000, .apb2_frequency = 44000000,
}, },
@ -62,6 +63,7 @@ const struct rcc_clock_scale rcc_hsi_8mhz[RCC_CLOCK_END] = {
.ppre1 = RCC_CFGR_PPRE1_DIV_2, .ppre1 = RCC_CFGR_PPRE1_DIV_2,
.ppre2 = RCC_CFGR_PPRE2_DIV_NONE, .ppre2 = RCC_CFGR_PPRE2_DIV_NONE,
.flash_config = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY_1WS, .flash_config = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY_1WS,
.ahb_frequency = 48000000,
.apb1_frequency = 24000000, .apb1_frequency = 24000000,
.apb2_frequency = 48000000, .apb2_frequency = 48000000,
}, },
@ -72,6 +74,7 @@ const struct rcc_clock_scale rcc_hsi_8mhz[RCC_CLOCK_END] = {
.ppre1 = RCC_CFGR_PPRE1_DIV_2, .ppre1 = RCC_CFGR_PPRE1_DIV_2,
.ppre2 = RCC_CFGR_PPRE2_DIV_NONE, .ppre2 = RCC_CFGR_PPRE2_DIV_NONE,
.flash_config = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY_2WS, .flash_config = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY_2WS,
.ahb_frequency = 64000000,
.apb1_frequency = 32000000, .apb1_frequency = 32000000,
.apb2_frequency = 64000000, .apb2_frequency = 64000000,
} }
@ -424,6 +427,7 @@ void rcc_clock_setup_hsi(const struct rcc_clock_scale *clock)
rcc_wait_for_sysclk_status(RCC_PLL); rcc_wait_for_sysclk_status(RCC_PLL);
/* Set the peripheral clock frequencies used. */ /* Set the peripheral clock frequencies used. */
rcc_ahb_frequency = clock->ahb_frequency;
rcc_apb1_frequency = clock->apb1_frequency; rcc_apb1_frequency = clock->apb1_frequency;
rcc_apb2_frequency = clock->apb2_frequency; rcc_apb2_frequency = clock->apb2_frequency;
} }