diff options
author | Tom Rini <trini@konsulko.com> | 2021-03-31 16:47:30 +0300 |
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committer | Tom Rini <trini@konsulko.com> | 2021-03-31 16:47:30 +0300 |
commit | db8b46120aed6554d1ff405260ea6d2cc2439fcc (patch) | |
tree | 40326d1f241593e0593f7168eda5a09f19ce49ae /drivers/clk | |
parent | 7d23eb9260d5ce0ccb219a17cfc90c29101d4fa5 (diff) | |
parent | c5465684b9c74780fdeb30568c586d824eafd75c (diff) | |
download | u-boot-db8b46120aed6554d1ff405260ea6d2cc2439fcc.tar.xz |
Merge tag 'xilinx-for-v2021.07' of https://source.denx.de/u-boot/custodians/u-boot-microblaze into next
Xilinx changes for v2021.07
net:
- Fix gem PCS support
spi:
- Small trivial fixes
zynq:
- Enable time/timer commands
- Update bitmain platform
- Several DT changes
zynqmp:
- Update clock driver
- mini config alignments
- Add/update psu_init for zcu208/zcu216/zc1275
- Several DT changes
- Enable efi debug command (also for Versal)
Diffstat (limited to 'drivers/clk')
-rw-r--r-- | drivers/clk/clk_zynqmp.c | 251 |
1 files changed, 170 insertions, 81 deletions
diff --git a/drivers/clk/clk_zynqmp.c b/drivers/clk/clk_zynqmp.c index 609d8e3b2f..13a623fdb9 100644 --- a/drivers/clk/clk_zynqmp.c +++ b/drivers/clk/clk_zynqmp.c @@ -97,8 +97,7 @@ static const resource_size_t zynqmp_crl_apb_clkc_base = 0xff5e0020; #define CLK_CTRL_DIV1_MASK (ZYNQ_CLK_MAXDIV << CLK_CTRL_DIV1_SHIFT) #define CLK_CTRL_DIV0_SHIFT 8 #define CLK_CTRL_DIV0_MASK (ZYNQ_CLK_MAXDIV << CLK_CTRL_DIV0_SHIFT) -#define CLK_CTRL_SRCSEL_SHIFT 0 -#define CLK_CTRL_SRCSEL_MASK (0x3 << CLK_CTRL_SRCSEL_SHIFT) +#define CLK_CTRL_SRCSEL_MASK 0x7 #define PLLCTRL_FBDIV_MASK 0x7f00 #define PLLCTRL_FBDIV_SHIFT 8 #define PLLCTRL_RESET_MASK 1 @@ -132,7 +131,7 @@ enum zynqmp_clk { iou_switch, gem_tsu_ref, gem_tsu, gem0_ref, gem1_ref, gem2_ref, gem3_ref, - gem0_rx, gem1_rx, gem2_rx, gem3_rx, + gem0_tx, gem1_tx, gem2_tx, gem3_tx, qspi_ref, sdio0_ref, sdio1_ref, uart0_ref, uart1_ref, @@ -152,7 +151,7 @@ static const char * const clk_names[clk_max] = { "iopll", "rpll", "apll", "dpll", "vpll", "iopll_to_fpd", "rpll_to_fpd", "apll_to_lpd", "dpll_to_lpd", "vpll_to_lpd", - "acpu", "acpu_half", "dbf_fpd", "dbf_lpd", + "acpu", "acpu_half", "dbg_fpd", "dbg_lpd", "dbg_trace", "dbg_tstmp", "dp_video_ref", "dp_audio_ref", "dp_stc_ref", "gdma_ref", "dpdma_ref", "ddr_ref", "sata_ref", "pcie_ref", @@ -172,6 +171,38 @@ static const char * const clk_names[clk_max] = { "ams_ref", "pl0", "pl1", "pl2", "pl3", "wdt" }; +static const u32 pll_src[][4] = { + {apll, 0xff, dpll, vpll}, /* acpu */ + {dpll, vpll, 0xff, 0xff}, /* ddr_ref */ + {rpll, iopll, 0xff, 0xff}, /* dll_ref */ + {iopll, 0xff, rpll, dpll_to_lpd}, /* gem_tsu_ref */ + {iopll, 0xff, rpll, dpll}, /* peripheral */ + {apll, 0xff, iopll_to_fpd, dpll}, /* wdt */ + {iopll_to_fpd, 0xff, dpll, apll}, /* dbg_fpd */ + {iopll, 0xff, rpll, dpll_to_lpd}, /* timestamp_ref */ + {iopll_to_fpd, 0xff, apll, dpll}, /* sata_ref */ + {iopll_to_fpd, 0xff, rpll_to_fpd, dpll},/* pcie_ref */ + {iopll_to_fpd, 0xff, vpll, dpll}, /* gpu_ref */ + {apll, 0xff, vpll, dpll}, /* topsw_main_ref */ + {rpll, 0xff, iopll, dpll_to_lpd}, /* cpu_r5_ref */ +}; + +enum zynqmp_clk_pll_src { + ACPU_CLK_SRC = 0, + DDR_CLK_SRC, + DLL_CLK_SRC, + GEM_TSU_CLK_SRC, + PERI_CLK_SRC, + WDT_CLK_SRC, + DBG_FPD_CLK_SRC, + TIMESTAMP_CLK_SRC, + SATA_CLK_SRC, + PCIE_CLK_SRC, + GPU_CLK_SRC, + TOPSW_MAIN_CLK_SRC, + CPU_R5_CLK_SRC +}; + struct zynqmp_clk_priv { unsigned long ps_clk_freq; unsigned long video_clk; @@ -195,12 +226,38 @@ static u32 zynqmp_clk_get_register(enum zynqmp_clk id) return CRF_APB_VPLL_CTRL; case acpu: return CRF_APB_ACPU_CTRL; + case dbg_fpd: + return CRF_APB_DBG_FPD_CTRL; + case dbg_trace: + return CRF_APB_DBG_TRACE_CTRL; + case dbg_tstmp: + return CRF_APB_DBG_TSTMP_CTRL; + case gpu_ref ... gpu_pp1_ref: + return CRF_APB_GPU_REF_CTRL; case ddr_ref: return CRF_APB_DDR_CTRL; + case sata_ref: + return CRF_APB_SATA_REF_CTRL; + case pcie_ref: + return CRF_APB_PCIE_REF_CTRL; + case gdma_ref: + return CRF_APB_GDMA_REF_CTRL; + case dpdma_ref: + return CRF_APB_DPDMA_REF_CTRL; + case topsw_main: + return CRF_APB_TOPSW_MAIN_CTRL; + case topsw_lsbus: + return CRF_APB_TOPSW_LSBUS_CTRL; + case lpd_switch: + return CRL_APB_LPD_SWITCH_CTRL; + case lpd_lsbus: + return CRL_APB_LPD_LSBUS_CTRL; case qspi_ref: return CRL_APB_QSPI_REF_CTRL; case usb3_dual_ref: return CRL_APB_USB3_DUAL_REF_CTRL; + case gem_tsu_ref: + return CRL_APB_GEM_TSU_REF_CTRL; case gem0_ref: return CRL_APB_GEM0_REF_CTRL; case gem1_ref: @@ -213,6 +270,8 @@ static u32 zynqmp_clk_get_register(enum zynqmp_clk id) return CRL_APB_USB0_BUS_REF_CTRL; case usb1_bus_ref: return CRL_APB_USB1_BUS_REF_CTRL; + case cpu_r5: + return CRL_APB_CPU_R5_CTRL; case uart0_ref: return CRL_APB_UART0_REF_CTRL; case uart1_ref: @@ -235,6 +294,14 @@ static u32 zynqmp_clk_get_register(enum zynqmp_clk id) return CRL_APB_CAN0_REF_CTRL; case can1_ref: return CRL_APB_CAN1_REF_CTRL; + case dll_ref: + return CRL_APB_DLL_REF_CTRL; + case adma_ref: + return CRL_APB_ADMA_REF_CTRL; + case timestamp_ref: + return CRL_APB_TIMESTAMP_REF_CTRL; + case ams_ref: + return CRL_APB_AMS_REF_CTRL; case pl0: return CRL_APB_PL0_REF_CTRL; case pl1: @@ -253,68 +320,6 @@ static u32 zynqmp_clk_get_register(enum zynqmp_clk id) return 0; } -static enum zynqmp_clk zynqmp_clk_get_cpu_pll(u32 clk_ctrl) -{ - u32 srcsel = (clk_ctrl & CLK_CTRL_SRCSEL_MASK) >> - CLK_CTRL_SRCSEL_SHIFT; - - switch (srcsel) { - case 2: - return dpll; - case 3: - return vpll; - case 0 ... 1: - default: - return apll; - } -} - -static enum zynqmp_clk zynqmp_clk_get_ddr_pll(u32 clk_ctrl) -{ - u32 srcsel = (clk_ctrl & CLK_CTRL_SRCSEL_MASK) >> - CLK_CTRL_SRCSEL_SHIFT; - - switch (srcsel) { - case 1: - return vpll; - case 0: - default: - return dpll; - } -} - -static enum zynqmp_clk zynqmp_clk_get_peripheral_pll(u32 clk_ctrl) -{ - u32 srcsel = (clk_ctrl & CLK_CTRL_SRCSEL_MASK) >> - CLK_CTRL_SRCSEL_SHIFT; - - switch (srcsel) { - case 2: - return rpll; - case 3: - return dpll; - case 0 ... 1: - default: - return iopll; - } -} - -static enum zynqmp_clk zynqmp_clk_get_wdt_pll(u32 clk_ctrl) -{ - u32 srcsel = (clk_ctrl & CLK_CTRL_SRCSEL_MASK) >> - CLK_CTRL_SRCSEL_SHIFT; - - switch (srcsel) { - case 2: - return iopll_to_fpd; - case 3: - return dpll; - case 0 ... 1: - default: - return apll; - } -} - static ulong zynqmp_clk_get_pll_src(ulong clk_ctrl, struct zynqmp_clk_priv *priv, bool is_pre_src) @@ -378,7 +383,7 @@ static ulong zynqmp_clk_get_pll_rate(struct zynqmp_clk_priv *priv, static ulong zynqmp_clk_get_cpu_rate(struct zynqmp_clk_priv *priv, enum zynqmp_clk id) { - u32 clk_ctrl, div; + u32 clk_ctrl, div, srcsel; enum zynqmp_clk pll; int ret; unsigned long pllrate; @@ -391,7 +396,8 @@ static ulong zynqmp_clk_get_cpu_rate(struct zynqmp_clk_priv *priv, div = (clk_ctrl & CLK_CTRL_DIV0_MASK) >> CLK_CTRL_DIV0_SHIFT; - pll = zynqmp_clk_get_cpu_pll(clk_ctrl); + srcsel = clk_ctrl & CLK_CTRL_SRCSEL_MASK; + pll = pll_src[ACPU_CLK_SRC][srcsel]; pllrate = zynqmp_clk_get_pll_rate(priv, pll); if (IS_ERR_VALUE(pllrate)) return pllrate; @@ -401,7 +407,7 @@ static ulong zynqmp_clk_get_cpu_rate(struct zynqmp_clk_priv *priv, static ulong zynqmp_clk_get_ddr_rate(struct zynqmp_clk_priv *priv) { - u32 clk_ctrl, div; + u32 clk_ctrl, div, srcsel; enum zynqmp_clk pll; int ret; ulong pllrate; @@ -414,7 +420,8 @@ static ulong zynqmp_clk_get_ddr_rate(struct zynqmp_clk_priv *priv) div = (clk_ctrl & CLK_CTRL_DIV0_MASK) >> CLK_CTRL_DIV0_SHIFT; - pll = zynqmp_clk_get_ddr_pll(clk_ctrl); + srcsel = clk_ctrl & CLK_CTRL_SRCSEL_MASK; + pll = pll_src[DDR_CLK_SRC][srcsel]; pllrate = zynqmp_clk_get_pll_rate(priv, pll); if (IS_ERR_VALUE(pllrate)) return pllrate; @@ -422,11 +429,33 @@ static ulong zynqmp_clk_get_ddr_rate(struct zynqmp_clk_priv *priv) return DIV_ROUND_CLOSEST(pllrate, div); } +static ulong zynqmp_clk_get_dll_rate(struct zynqmp_clk_priv *priv) +{ + u32 clk_ctrl, srcsel; + enum zynqmp_clk pll; + ulong pllrate; + int ret; + + ret = zynqmp_mmio_read(CRL_APB_DLL_REF_CTRL, &clk_ctrl); + if (ret) { + printf("%s mio read fail\n", __func__); + return -EIO; + } + + srcsel = clk_ctrl & CLK_CTRL_SRCSEL_MASK; + pll = pll_src[DLL_CLK_SRC][srcsel]; + pllrate = zynqmp_clk_get_pll_rate(priv, pll); + if (IS_ERR_VALUE(pllrate)) + return pllrate; + + return pllrate; +} + static ulong zynqmp_clk_get_peripheral_rate(struct zynqmp_clk_priv *priv, - enum zynqmp_clk id, bool two_divs) + enum zynqmp_clk id, bool two_divs) { enum zynqmp_clk pll; - u32 clk_ctrl, div0; + u32 clk_ctrl, div0, srcsel; u32 div1 = 1; int ret; ulong pllrate; @@ -446,8 +475,13 @@ static ulong zynqmp_clk_get_peripheral_rate(struct zynqmp_clk_priv *priv, if (!div1) div1 = 1; } + srcsel = clk_ctrl & CLK_CTRL_SRCSEL_MASK; + + if (id == gem_tsu_ref) + pll = pll_src[GEM_TSU_CLK_SRC][srcsel]; + else + pll = pll_src[PERI_CLK_SRC][srcsel]; - pll = zynqmp_clk_get_peripheral_pll(clk_ctrl); pllrate = zynqmp_clk_get_pll_rate(priv, pll); if (IS_ERR_VALUE(pllrate)) return pllrate; @@ -457,11 +491,11 @@ static ulong zynqmp_clk_get_peripheral_rate(struct zynqmp_clk_priv *priv, DIV_ROUND_CLOSEST(pllrate, div0), div1); } -static ulong zynqmp_clk_get_wdt_rate(struct zynqmp_clk_priv *priv, - enum zynqmp_clk id, bool two_divs) +static ulong zynqmp_clk_get_crf_crl_rate(struct zynqmp_clk_priv *priv, + enum zynqmp_clk id, bool two_divs) { enum zynqmp_clk pll; - u32 clk_ctrl, div0; + u32 clk_ctrl, div0, srcsel; u32 div1 = 1; int ret; ulong pllrate; @@ -475,8 +509,45 @@ static ulong zynqmp_clk_get_wdt_rate(struct zynqmp_clk_priv *priv, div0 = (clk_ctrl & CLK_CTRL_DIV0_MASK) >> CLK_CTRL_DIV0_SHIFT; if (!div0) div0 = 1; + srcsel = clk_ctrl & CLK_CTRL_SRCSEL_MASK; - pll = zynqmp_clk_get_wdt_pll(clk_ctrl); + switch (id) { + case wdt: + case dbg_trace: + case topsw_lsbus: + pll = pll_src[WDT_CLK_SRC][srcsel]; + break; + case dbg_fpd: + case dbg_tstmp: + pll = pll_src[DBG_FPD_CLK_SRC][srcsel]; + break; + case timestamp_ref: + pll = pll_src[TIMESTAMP_CLK_SRC][srcsel]; + break; + case sata_ref: + pll = pll_src[SATA_CLK_SRC][srcsel]; + break; + case pcie_ref: + pll = pll_src[PCIE_CLK_SRC][srcsel]; + break; + case gpu_ref ... gpu_pp1_ref: + pll = pll_src[GPU_CLK_SRC][srcsel]; + break; + case gdma_ref: + case dpdma_ref: + case topsw_main: + pll = pll_src[TOPSW_MAIN_CLK_SRC][srcsel]; + break; + case cpu_r5: + case ams_ref: + case adma_ref: + case lpd_lsbus: + case lpd_switch: + pll = pll_src[CPU_R5_CLK_SRC][srcsel]; + break; + default: + return -ENXIO; + } if (two_divs) { ret = zynqmp_mmio_read(zynqmp_clk_get_register(pll), &clk_ctrl); if (ret) { @@ -533,7 +604,7 @@ static ulong zynqmp_clk_set_peripheral_rate(struct zynqmp_clk_priv *priv, enum zynqmp_clk pll; u32 clk_ctrl, div0 = 0, div1 = 0; ulong pll_rate, new_rate; - u32 reg; + u32 reg, srcsel; int ret; u32 mask; @@ -544,7 +615,8 @@ static ulong zynqmp_clk_set_peripheral_rate(struct zynqmp_clk_priv *priv, return -EIO; } - pll = zynqmp_clk_get_peripheral_pll(clk_ctrl); + srcsel = clk_ctrl & CLK_CTRL_SRCSEL_MASK; + pll = pll_src[PERI_CLK_SRC][srcsel]; pll_rate = zynqmp_clk_get_pll_rate(priv, pll); if (IS_ERR_VALUE(pll_rate)) return pll_rate; @@ -588,14 +660,31 @@ static ulong zynqmp_clk_get_rate(struct clk *clk) return zynqmp_clk_get_cpu_rate(priv, id); case ddr_ref: return zynqmp_clk_get_ddr_rate(priv); + case dll_ref: + return zynqmp_clk_get_dll_rate(priv); + case gem_tsu_ref: + case pl0 ... pl3: case gem0_ref ... gem3_ref: case qspi_ref ... can1_ref: - case pl0 ... pl3: + case usb0_bus_ref ... usb3_dual_ref: two_divs = true; return zynqmp_clk_get_peripheral_rate(priv, id, two_divs); case wdt: + case topsw_lsbus: + case sata_ref ... gpu_pp1_ref: two_divs = true; - return zynqmp_clk_get_wdt_rate(priv, id, two_divs); + case cpu_r5: + case dbg_fpd: + case ams_ref: + case adma_ref: + case lpd_lsbus: + case dbg_trace: + case dbg_tstmp: + case lpd_switch: + case topsw_main: + case timestamp_ref: + case gdma_ref ... dpdma_ref: + return zynqmp_clk_get_crf_crl_rate(priv, id, two_divs); default: return -ENXIO; } |