soc/intel/skylake: Refactor PEG configuration
Simplify some if-blocks which are used for the configuration, enablement and disablement of the PEG devices. This changes the logic of the code, since it configures PegxEnable before the if-blocks, where x is the number of the PEG device, and the further configuration of the PEG devices depends on the enablement of PegxEnable. Change-Id: I6dd88ce752ce8f0255c424d0e5b2d8ef918885a1 Signed-off-by: Felix Singer <felixsinger@posteo.net> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44368 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Michael Niewöhner
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@ -171,10 +171,8 @@ static void soc_peg_init_params(FSP_M_CONFIG *m_cfg,
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* in FSP
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*/
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dev = pcidev_path_on_root(SA_DEVFN_PEG0); /* PEG 0:1:0 */
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if (!dev || !dev->enabled)
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m_cfg->Peg0Enable = 0;
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else if (dev->enabled) {
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m_cfg->Peg0Enable = dev->enabled;
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m_cfg->Peg0Enable = dev && dev->enabled;
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if (m_cfg->Peg0Enable) {
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m_cfg->Peg0MaxLinkWidth = config->Peg0MaxLinkWidth;
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/* Use maximum possible link speed */
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m_cfg->Peg0MaxLinkSpeed = 0;
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@ -186,10 +184,8 @@ static void soc_peg_init_params(FSP_M_CONFIG *m_cfg,
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}
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dev = pcidev_path_on_root(SA_DEVFN_PEG1); /* PEG 0:1:1 */
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if (!dev || !dev->enabled)
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m_cfg->Peg1Enable = 0;
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else if (dev->enabled) {
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m_cfg->Peg1Enable = dev->enabled;
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m_cfg->Peg1Enable = dev && dev->enabled;
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if (m_cfg->Peg1Enable) {
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m_cfg->Peg1MaxLinkWidth = config->Peg1MaxLinkWidth;
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m_cfg->Peg1MaxLinkSpeed = 0;
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m_cfg->Peg1PowerDownUnusedLanes = 1;
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@ -198,10 +194,8 @@ static void soc_peg_init_params(FSP_M_CONFIG *m_cfg,
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}
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dev = pcidev_path_on_root(SA_DEVFN_PEG2); /* PEG 0:1:2 */
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if (!dev || !dev->enabled)
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m_cfg->Peg2Enable = 0;
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else if (dev->enabled) {
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m_cfg->Peg2Enable = dev->enabled;
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m_cfg->Peg2Enable = dev && dev->enabled;
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if (m_cfg->Peg2Enable) {
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m_cfg->Peg2MaxLinkWidth = config->Peg2MaxLinkWidth;
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m_cfg->Peg2MaxLinkSpeed = 0;
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m_cfg->Peg2PowerDownUnusedLanes = 1;
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